Journal articles on the topic 'IPC device'
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Sakai, Kenta, Naonobu Takahira, Kouji Tsuda, and Akihiko Akamine. "Effects of intermittent pneumatic compression on femoral vein peak venous velocity during active ankle exercise." Journal of Orthopaedic Surgery 29, no. 1 (January 1, 2021): 230949902199810. http://dx.doi.org/10.1177/2309499021998105.
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Introduction: The risk of developing deep vein thrombosis (DVT) is high even after the period of bed rest following major general surgery including total joint arthroplasty (TJA). Mobile intermittent pneumatic compression (IPC) devices allow the application of IPC during postoperative exercise. Although ambulation included ankle movement, no reports have been made regarding the effects of IPC during exercise, including active ankle exercise (AAE), on venous flow. This study was performed to examine whether using a mobile IPC device can effectively augment the AAE-induced increase in peak velocity (PV). Methods: PV was measured by Doppler ultrasonography in the superficial femoral vein at rest, during AAE alone, during IPC alone, and during AAE with IPC in 20 healthy subjects in the sitting position. PV in AAE with IPC was measured with a mobile IPC device during AAE in the strong compression phase. AAE was interrupted from the end of the strong compression phase to minimize lower limb fatigue. Results: AAE with IPC (76.2 cm/s [95%CI, 69.0–83.4]) resulted in a significant increase in PV compared to either AAE or IPC alone (47.1 cm/s [95%CI, 38.7–55.6], p < 0.001 and 48.1 cm/s [95%CI, 43.7–52.4], p < 0.001, respectively). Discussion: Reduced calf muscle pump activity due to the decline in ambulation ability reduced venous flow. Therefore, use of a mobile IPC device during postoperative rehabilitation in hospital and activity including self-training in an inpatient ward may promote venous flow compared to postoperative exercise without IPC. Conclusion: Use of a mobile IPC device significantly increased the PV during AAE, and simultaneous AAE with IPC could be useful evidence for the prevention of DVT in clinical settings, including after TJA.
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Fan, Jin Wei, Yi Jia Liu, Ling Chen, Shi Ji, and Shuai Yuan. "A Kind of Multi-Functional Wall Surface Nondestructive Testing Device." Applied Mechanics and Materials 716-717 (December 2014): 958–60. http://dx.doi.org/10.4028/www.scientific.net/amm.716-717.958.
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In this paper, non-destructive testing on the inner wall surface of the deep, invented a detection device, the device by numerical control systems, mechanical control devices and imaging device components. PC lower machine controlled by CNC system mechanical devices IPC and PLC can control the composition includes a manual lift the car up and down movement, control multistage axial movement of the cylinder and the axial rotation of the servo motor control to meet the imaging device the location requirements. Imaging device consists of a high-speed industrial cameras and miniature camera components. The device has a low cost, high accuracy, simple manufacturing process and so on.
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Kim, Hyung Tae, and Kyung Chan Jin. "Multi-Application and Large Shared Memory in a Mechatronic System for Massive Computation." Applied Mechanics and Materials 307 (February 2013): 18–22. http://dx.doi.org/10.4028/www.scientific.net/amm.307.18.
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Recent mechatronic systems, such as inspection machines or 3D imaging apparatuses, acquire and compute massive data for final results. A host in the mechatronic system is commonly composed of multiple hardware devices which interface with high-speed external signals. The host and the devices usually have large memory, so efficient data management is important due to data storage and transfer. In our software structure, each device is managed by respective application and large shared memory (LSM) is allocated in the host for the massive data. The shared memory is accessible from the device applications. Actions of the mechatronic system are driven by combining and broadcasting events through and inter-process communication (IPC). The model with LSM and IPC was applied to a 3D RF imaging system. We expect the proposed model can also be applied to machine vision with big image and engineering simulation with hardware accelerators.
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Kim, Yoon, Seonghee Kim, Ji Young Lim, Chea Min Hwang, Myoung-Hwan Ko, and Ji Hye Hwang. "Home-Based Intermittent Pneumatic Compression Therapy: The Impact in Chronic Leg Lymphedema in Patients Treated for Gynecologic Cancer." Healthcare 10, no. 4 (March 28, 2022): 638. http://dx.doi.org/10.3390/healthcare10040638.
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We conducted a prospective study of cancer patients to investigate the efficacy, quality of life, satisfaction, and safety of a home-based intermittent pneumatic compression (IPC) device during the maintenance phase of lower extremity lymphedema. This device has a unique mode designed to mimic the manual lymphatic drainage (MLD) technique and thereby gently facilitate lymphatic draining of proximal extremities. Thirty patients with stage 3 chronic secondary unilateral leg lymphedema in the maintenance phase underwent IPC and conventional compression therapy for 4 weeks at home. The participants were guided to use 1 h course (30 min of MLD-mimicking mode and 30 min of conventional mode) of IPC device twice a day for 4 weeks. We assessed the patients’ limb-volume measurement, quality of life (QOL), and satisfaction four times. There were no significant time-dependent interactions in the inter-limb volume difference ratio (Vratio). In a subgroup analysis, participants who used the home-based IPC device and maintained their routine self-maintenance program of short-stretch bandages (group B, n = 21) showed a more significant decline in Vratio than those who did not maintained their routine care (group A, n = 9). All scores of QOL decreased significantly after the intervention without subgroup difference. All participants were satisfied with the 4-week intervention. This study demonstrated that a home-based IPC device with an MLD-mimicking program is a useful option for maintaining the volume of limbs and improving the QOL of patients with stage 3 chronic leg lymphedema during the maintenance phase.
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Chohan, Ambreen, Simon Abram, Amy Parkes, Lauren Haworth, and Justine C. Whitaker. "Examination of a new mobile intermittent pneumatic compression device in healthy adults." Journal of Wound Care 29, no. 6 (June 2, 2020): 370–74. http://dx.doi.org/10.12968/jowc.2020.29.6.370.
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Objective: Intermittent pneumatic compression (IPC) is an alternative method of compression treatment designed to compress the leg and mimic ambulatory pump action to actively promote venous return. This study explores the efficacy of a new portable IPC device on tissue oxygenation (StO2) in two sitting positions. Method: In this quantitative, healthy single cohort study, participants were screened and recruited using Physical Activity Readiness Questionnaire (PAR-Q, Canada). Participants attended two separate one-hour sessions to evaluate StO2 in an upright chair-sitting position and in a long-sitting position. StO2 was recorded for 20 minutes before, during and after a 20-minute intervention of the IPC device (Venapro, DJO Global, US). Results: A total of 29 healthy volunteers took part in the study. A significant difference was seen between the two seating positions (p=0.003) with long-sitting showing a 12% higher StO2 level than chair-sitting post-intervention. A similar effect was seen in both sitting positions when analysing data over three timepoints (p=0.000). Post-hoc pairwise comparisons showed that significant improvements in StO2 (p≤0.000) were seen from baseline, throughout the intervention, continuing up to 15 minutes post-intervention, indicating a continued effect of the device after a short intervention. Conclusion: Increasing StO2 through short intervention sessions with this portable device has potential for use within various health and sports-based practices, improving tissue health, potentially reducing postoperative deep vein thrombosis (DVT) risk or inflammation. Such devices lend themselves to wide self-management implementation.
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Zhao, Shumi, Rong Liu, Chengwei Fei, and Dong Guan. "Dynamic Interface Pressure Monitoring System for the Morphological Pressure Mapping of Intermittent Pneumatic Compression Therapy." Sensors 19, no. 13 (June 28, 2019): 2881. http://dx.doi.org/10.3390/s19132881.
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Intermittent pneumatic compression (IPC) is a proactive compression therapeutic technique in the prophylaxis of deep vein thrombosis, reduction of limb edema, and treatment of chronic venous ulcers. To appropriately detect and analyze biomechanical pressure profiles delivered by IPC in treatment, a dynamic interface pressure monitoring system was developed to visualize and quantify morphological pressure mapping in the spatial and temporal domains in real time. The system comprises matrix soft sensors, a smart IPC device, a monitoring and analysis software, and a display unit. The developed soft sensor fabricated by an advanced screen printing technology was used to detect intermitted pressure by an IPC device. The pneumatic pressure signals inside the bladders of the IPC were also transiently collected by a data acquisition system and then transmitted to the computer through Bluetooth. The experimental results reveal that the developed pressure monitoring system can perform the real-time detection of dynamic pressures by IPC and display the morphological pressure mapping multi-dimensionally. This new system provides a novel modality to assist in the effective evaluation of proactive compression therapy in practice. The study results contribute to understanding the working mechanisms of IPC and improving its functional design based on intuitive biomechanical characteristics of compression delivery profiles.
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Stedge, Hannah L., and Kirk Armstrong. "The Effects of Intermittent Pneumatic Compression on the Reduction of Exercise-Induced Muscle Damage in Endurance Athletes: A Critically Appraised Topic." Journal of Sport Rehabilitation 30, no. 4 (May 1, 2021): 668–71. http://dx.doi.org/10.1123/jsr.2020-0364.
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Clinical Scenario: Endurance sports require a great deal of physical training to perform well. Endurance training and racing stress the skeletal muscle, resulting in exercise-induced muscle damage (EIMD). Athletes attempt to aid their recovery in various ways, one of which is through compression. Dynamic compression consists of intermittent pneumatic compression (IPC) devices, such as the NormaTec Recovery System and Recovery Pump. Clinical Question: What are the effects of IPC on the reduction of EIMD in endurance athletes following prolonged exercise? Summary of Key Findings: The current literature was searched to identify the effects of IPC, and 3 studies were selected: 2 randomized controlled trials and 1 randomized cross-over study. Two studies investigated the effect of IPC on delayed onset muscle soreness and plasma creatine kinase in ultramarathoners. The other looked at the impact of IPC on delayed onset muscle soreness in marathoners, ultramarathoners, triathletes, and cyclists. All studies concluded IPC was not an effective means of improving the reduction of EIMD in endurance-trained athletes. Clinical Bottom Line: While IPC may provide short-term relief of delayed onset muscle soreness, this device does not provide continued relief from EIMD. Strength of Recommendation: In accordance with the Strength of Recommendation Taxonomy, the grade of B is recommended based on consistent evidence from 2 high-quality randomized controlled trials and 1 randomized cross-over study.
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Helbig, Sina, Stephen M. Brecher, and Richard Serrao. "Corynebacterium striatum Cardiovascular Implantable Electronic Device Infection." Infectious Diseases in Clinical Practice 21, no. 6 (November 2013): 401–4. http://dx.doi.org/10.1097/ipc.0b013e31827f44ba.
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Dadkhah, Shahriar, Samaneh Dowlatshahi, Korosh Sharain, and Roza Sharain. "Visual Evidence of Ischemic Preconditioning during PCI Using 80 Lead ECG Body Surface Mapping." Clinical Medicine Insights: Case Reports 4 (January 2011): CCRep.S8455. http://dx.doi.org/10.4137/ccrep.s8455.
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Ischemic preconditioning (IPC) is a well-documented phenomenon. Short episodes of sublethal ischemia provide cardioprotective effects for subsequent longer duration ischemic events. Although the exact mechanism of IPC is not yet known, the chemical basis of IPC seems to involve preservation of ATP or collateral vascularization recruitment. In this case report, we present visual evidence of ischemic preconditioning using Heartscape Technologies 80 Lead ECG device. The 80 Lead ECG is described as a body surface mapping modality, converting its inputted 80 lead ECG data into a 3-Dimensional color coded map. The 80 lead ECG device can detect instantaneous ischemic changes. Different studies have been performed to show different clinical and biochemical aspects of IPC. However data regarding direct visual evidence of this phenomenon is lacking. The secondary objective of this study is to show the ability of 80 lead ECG to identify ST-segment elevation and depression during ischemic events. The utility of 80 Lead ECG body surface mapping is enormous when evaluating ischemic events.
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Włodarczyk, Michał, Paweł Krotewicz, Damian Kacperski, Wojciech Sankowski, and Kamil Grabowski. "Inter-Device Periocular Recognition Under Near-Infrared Light." Image Processing & Communications 21, no. 4 (December 1, 2016): 33–44. http://dx.doi.org/10.1515/ipc-2016-0021.
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Abstract Periocular biometrics is a relatively new field of research, and only several publications on this topic can be found in the literature. It can become a promising feature that can be used independently or as a complement to other biometrics. In this work, the recognition rates of periocular biometrics on a single acquisition device and inter-device database is verified and the impact of different image sources on the performance of recognition algorithms is investigated. For this purpose a NearInfrared Light database was collected. The database contains images taken by two acquisition devices. In order to test the periocular biometric trait, three feature extraction methods are chosen: Histograms of Oriented Gradients, Local Binary Patterns and Scale Invariant Feature Transform. The fusion of these methods is also proposed and it is tested on inter-device database. The feasibility of applying periocular recognition as an individual decision module for a biometric system is assessed. Experimental results yield Equal Error Rate of 17.65 for right eye using inter-device database of 640 gallery periocular images for each eye side taken from 32 different individuals (20 images per individual for each eye side). These results are obtained by the optimal weighted sum fusion of the three feature extraction methods.
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Ferraresi, Carlo, Hamidreza Hajimirzaalian, and Daniela Maffiodo. "Identification of Physical Parameters in a Robotized IPC Device Interacting with Human." Applied Mechanics and Materials 490-491 (January 2014): 1729–33. http://dx.doi.org/10.4028/www.scientific.net/amm.490-491.1729.
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Intermittent Pneumatic Compression devices are widely used for various therapies concerning the cardio-circulatory or lymphatic system, and also for performance recovery in sports activity. The development and setup of such devices are mainly based on empirical procedures, while few researches adopt an engineering approach based on mathematical modeling and identification. In this approach, the most critical point is the definition of parameters concerning the human-machine interaction. This paper proposes an original and simple method to identify such parameters, which allows to describe in effective way the main dynamic characteristics, fundamental for a correct design and control of the device.
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Fukuda, Masafumi, Masakazu Nabeta, Toshio Morita, and Osamu Takasu. "Recurrent Hemorrhage from Intermittent Pneumatic Compression Device Use After the Removal of a Femoral Venous Catheter—A Case Review." Journal of the Association for Vascular Access 26, no. 1 (March 1, 2021): 54–56. http://dx.doi.org/10.2309/java-d-20-00018.
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Highlights Abstract Intermittent pneumatic compression (IPC) is an effective method for preventing deep vein thrombosis (DVT) and is comparatively low risk for hemorrhaging compared with anticoagulant therapy. IPC is easily administered, and severe complications are rare. The patient was a 69-year-old male with no underlying diseases related to hemorrhaging of hemostasis. He was hospitalized for treatment of a third-degree burn injury to the upper body. Because the treatment included surgical debridement and skin grafting, there was substantial concern regarding the potential of hemorrhagic complications; hence, IPC was initiated to prevent DVT rather than standard anticoagulant therapy. On the ninth day of hospitalization, a femoral venous catheter initially placed to manage hydration was removed. Manual compression was performed for 15 minutes, and after confirming hemostasis at the insertion site, a hemostasis band was applied for an additional hour. At 90 minutes after confirming hemostasis, there was a secondary hemorrhage at the site of catheter removal. The secondary hemorrhage was stopped with manual compression, and IPC was discontinued. It was concluded that IPC might result in increased blood flow in the femoral vein. This may have contributed to the secondary hemorrhage after the removal of the catheter. Clinicians need to be aware of the fact that IPC may promote secondary hemorrhage after removal of a femoral venous catheter.
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Roberts, Scott C., Maura P. Quinlan, and Shannon R. Galvin. "Disseminated Streptococcus pneumoniae Infection Associated With an Intrauterine Device." Infectious Diseases in Clinical Practice 28, no. 4 (February 14, 2020): 238–41. http://dx.doi.org/10.1097/ipc.0000000000000843.
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Boctor, Noelle, David Nguyen, and Brett Williams. "Pasteurella Multocida Cardiovascular Implantable Electronic Device Infection With Recurrent Bacteremia." Infectious Diseases in Clinical Practice 25, no. 6 (November 2017): 336–38. http://dx.doi.org/10.1097/ipc.0000000000000524.
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Cunningham, Hayley E., Paul B. Tessmann, and Anne M. Lachiewicz. "Aspergillus flavus Left Ventricular Assist Device Driveline Exit Site Infection." Infectious Diseases in Clinical Practice 28, no. 2 (March 2020): 99–101. http://dx.doi.org/10.1097/ipc.0000000000000808.
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Kattan, Juan Nicolas, Eun Joo Park, Tara M. Mastracci, Thomas Dresing, and Steven Mark Gordon. "Purpura Fulminans Associated With a Cardiac Implantable Electronic Device Infection." Infectious Diseases in Clinical Practice 21, no. 4 (July 2013): 258–59. http://dx.doi.org/10.1097/ipc.0b013e31826991f4.
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Hofmeyr, G. Justus, Mandisa Singata-Madliki, Theresa A. Lawrie, Eduardo Bergel, and Marleen Temmerman. "Effects of injectable progestogen contraception versus the copper intrauterine device on HIV acquisition: sub-study of a pragmatic randomised controlled trial." Journal of Family Planning and Reproductive Health Care 43, no. 3 (April 5, 2017): 175–80. http://dx.doi.org/10.1136/jfprhc-2016-101607.
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BackgroundEvidence from observational studies suggests an increased risk of HIV acquisition among women using depot medroxyprogesterone acetate (DMPA) contraception.MethodsWithin the context of a South African programme to increase women's access to the intrauterine contraceptive device (IUD), we conducted a pragmatic, open-label, parallel-arm, randomised controlled trial (RCT) of the IUD versus injectable progestogen contraception (IPC) at two South African hospitals. The primary outcome was pregnancy; secondary outcomes included HIV acquisition. Consenting women attending termination of pregnancy services were randomised after pregnancy termination between July 2009 and November 2012. Condoms were promoted for the prevention of sexually transmitted infections. Voluntary HIV testing was offered at baseline and at 12 or more months later. Findings on HIV acquisition are reported in this article.ResultsHIV acquisition data were available for 1290 initially HIV-negative women who underwent a final study interview at a median of 20 months after randomisation to IPC or an IUD. Baseline group characteristics were comparable. In the IPC group, 545/656 (83%) of participants received DMPA, 96 (15%) received injectable norethisterone enanthate, 14 (2%) received the IUD and one received oral contraception. In the IUD group 609 (96%) received the IUD, 20 (3%) received IPC and 5 (1%) had missing data. According to intention-to-treat analysis, HIV acquisition occurred in 20/656 (3.0%) women in the IPC arm and 22/634 (3.5%) women in the IUD arm (IPC vs IUD, risk ratio 0.88; 95% confidence interval 0.48–1.59;p=0.7).ConclusionsThis sub-study was underpowered to rule out moderate differences in HIV risk, but confirms the feasibility of randomised trial methodology to address this question. Larger RCTs are needed to determine the relative risks of various contraceptive methods on HIV acquisition with greater precision.Trial registration numberPan African Clinical Trials Registry number PACTR201409000880157 (04-09-2014).
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Dehecq, Caroline, Xavier Lemaire, Laurence Legout, Eric Senneville, and Yazdan Yazdanpanah. "Infectious Complications After the Use of Angioseal Closure Device for Femoral Artery." Infectious Diseases in Clinical Practice 17, no. 3 (May 2009): 191–92. http://dx.doi.org/10.1097/ipc.0b013e31817eec57.
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Kwon, Young Il, and Dae Hyun Jeong. "Eigenvector Centrality Measurement Using Patent Information of Wind Power Energy." Advanced Materials Research 1025-1026 (September 2014): 944–49. http://dx.doi.org/10.4028/www.scientific.net/amr.1025-1026.944.
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Wind power generator produces electric energy using wind. Since fuel for operating a wind power generator costs almost nothing, it is receiving attention as a power generator for the next generation. A wind power generator consists of a device that absorbs and converts the energy of wind power, power train, and control device. Each element is connected as a whole while it performs its function. In this study, we used the patent IPC information related to segmented technologies of this wind power generator to establish a two-mode network, measure eigenvector centrality value and identify the field with the highest influence among the fields of wind power energy. In the result, the field of generator was found to have the highest influence, followed by operation system and blade. It was analyzed that the field of generator had the highest influence since H02K and H02P, the IPC codes in the field, were the important technologies that influenced on other fields. In addition, H02N and H02N, which are main IPC codes in the field of solar cell, were analyzed to have connection with the field of generator.
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Lee, Bonita, Jason Silverman, Atilano Lacson, Iyare Izevbaye, Hien Huynh, Consolato Sergi, Remegio Maglantay, et al. "Sherlock Holmes: Whose Tissue Is It Anyway?" Infection Control & Hospital Epidemiology 41, S1 (October 2020): s388—s389. http://dx.doi.org/10.1017/ice.2020.1024.
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Background: The medical device reprocessing department (MDRD) is a crucial patient safety area with checkpoints to ensure appropriate reprocessing. Objective: We report the application of molecular pathology in the investigation of potential blood and body fluid exposure (BBFE) during endoscopy. Methods: When there is a potential BBFE from a medical device, our hospital has a systematic process whereby the clinical area involves the MDRD and the infection prevention control (IPC) team. The MDRD provides reprocessing documentation, including detailed information regarding the prior use of the devices. The clinician and the IPC physician discuss the risk of BBFE. If patient disclosure occurs, the IPC physician provides follow-up as appropriate. This report illustrates the collaboration of clinicians, the IPC team, the MDRD, pathologists, and molecular pathologists in investigating the possibility of residual human tissue and BBFE during endoscopy. Case reports: Two independent but similar events occurred in September 2016 and September 2019 in the pediatric endoscopy suite at our site, a tertiary-care pediatric hospital with 163 beds in Edmonton, Canada. During both endoscopies, the pediatric gastroenterologists observed a piece of tissue ejected from the gastroscope into the intestinal lumen when the biopsy forceps were pushed out of the channel for the first time. This observation raised concerns of possible gaps in the reprocessing of the endoscope and residual tissue remaining in the working channel after its last use. Both gastroenterologists were able to retrieve the presumed foreign tissue; however, both patients had possible BBFE because the mucosal surface was breached by the biopsy forceps. The MDRD reprocessing of both endoscopes was reviewed, and no gap was identified. In discussion with the pathologists and molecular pathologists, human identity testing using genetic markers was performed on the biopsy blocks of the previous patient on whom the endoscope was used, the potentially exposed patient, and the presumed foreign tissue for each event. The test results indicated that the presumed foreign tissue was in fact from the potentially exposed patient and therefore there was no BBFE. It is presumed that the working channel itself captured a small amount of the patient’s tissue during scope insertion. The results were a relief to the patients and families. Conclusions: It is prudent to investigate residual foreign tissue in a medical device that is being used on patients with mucosal breaches. Molecular pathology involving human identity testing is a very useful tool in the investigation of these types of events.Funding: NoneDisclosures: None
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Majchrowicz, Michał, and Mateusz Hufnagiel. "Management of IOT Devices in a Smart Home Through the Application of an Interactive Mirror." Image Processing & Communications 22, no. 4 (December 1, 2017): 43–50. http://dx.doi.org/10.1515/ipc-2017-0020.
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Abstract Internet of Things (IoT) devices are big part of concept, which is called by electronic producers and many others Smart Home. Authors of this paper have decided to take a look at it and as a result of this analysis propose and implement (in a form of working prototype) a system that could manage different kinds of devices. The main objective of the project presented in this paper is a device that looks like a mirror and it is known to most people also is an interactive center, a place to obtain information of the devices that surround us and various parameters coming from sensors. Authors have prepared a prototype, that will be the central point of the apartment and will allow users to control all devices connected to this main system. Prototype allows to connect external sensors over GPIO (general purpose input/output) interface or Internet connection. There is also a possibility to add another communication interfaces such as 433MHz radio module, which is very cheap and works great in small areas or bluetooth module.
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Kucharski, Przemysław, Andrzej Romanowski, Krzysztof Grudzień, Laurent Babout, and Paweł Woźniak. "Sensing Mobile Device Orientation Through ECT Reconstructed Image Processing." Image Processing & Communications 22, no. 4 (December 1, 2017): 5–12. http://dx.doi.org/10.1515/ipc-2017-0017.
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Abstract We present TomoTable—a research prototype of a position sensing device hidden inside an ordinary table. While the Human-Computer Interaction (HCI) field has extensively explored possibilities for spatially-aware multi-device interactions, the sensing methods that would enable such systems are still complex and hard to deploy in the wild. TomoTable presents a possibility of easily deployable invisible positional sensing that uses electrical capacitance tomography (ECT). Electrodes are embedded inside the table structure and provide accurate imaging of what is placed on the table. The entire system is invisible to the user. Objects can be identified based on their electrical properties. Our work creates opportunities for in-the-wild studies using multi-device systems. In this paper, we share the technical concept of TomoTable, preliminary insights on its use and perspectives for future studies.
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Mansi Deshwal, Manju Nagpal, Gitika Arora Dhingra, and Geeta Aggarwal. "An updated review on Materiovigilance for safe use of medical devices." International Journal of Drug Regulatory Affairs 8, no. 4 (December 15, 2020): 5–13. http://dx.doi.org/10.22270/ijdra.v8i4.428.
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In the last two decades, there has been an upsurge in the volume of medical devices and thereby increasing medical device-related adverse events. So, materiovigilance is an essential system for identifying, collecting, reporting and analysing adverse events related to medical devices. The Vigilance programme for the medical device was initiated in many countries many years ago but, is a quite new concept for India. The Materiovigilance programme in India was launched on July 6 2015, at the Indian Pharmacopoeial Commission (IPC) with the objective of monitoring adverse events, thereby reducing risks related to use of medical devices and also creating awareness among different stakeholders for improving patients’ safety. The intent of this review article is to provide holistic understanding of medical device related adverse events; classification, reporting criteria, what, where, how, who and why, timeframe and tools used for reporting. Data collected using various search engines and compiled to give complete information regarding the subject matter. The thorough understanding of current status of materiovigilance programme in India including challenges involved in the programme and future directions for improving has been stated. Case studies have been reviewed for Johnson & Johnson’s faulty hip implant and Medtronic premature battery depletion. Implementation of Materiovigilance programme of India (MvPI) version 1.1 lead to safeguard the health of device user by preventing recurrence and risk associated with medical device.
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Cornistein, Wanda, Griselda Almada, Andrea Novau, Viviana Rodriguez, Cristina Freuler, and Maria Ines Staneloni. "Differences in Device-Associated Infections Rates in Argentina." Infection Control & Hospital Epidemiology 41, S1 (October 2020): s469. http://dx.doi.org/10.1017/ice.2020.1144.
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Background: Infection control programs (ICPs) are essential to reducing, in a progressive and sustained manner, healthcare-associated infections (HAIs). To achieve this goal these programs need not only resources (ie, trained human resources and financial resources) but also institutional leadership support. In our country, epidemiological surveillance is voluntary and is registered in the Argentina National Hospital Infection Surveillance System (VIHDA) where 114 hospitals and 78 adult intensive care unit (ICU) report their HAI rates. Many of these institutions do not have IPC or specific resources for this purpose. On the other hand, there are institutions with IPC, recognized by an international accreditation like Joint Commission International, that carry out an advanced and continuous program, with specific improvement goals for prevention and infection control. There is an imperative need in low- and middle-income countries to highlight the impact of ICPs in this setting and to promote regulations for mandatory surveillance and ICPs in all acute-care hospitals. Objective: To compare the rates for device-associated infections in ICUs of institutions with advanced ICPs versus national rates. Design: We conducted an observational, retrospective study, which includes device associated infection rates in adult critical care units from 2014 to 2018. We included all ICUs reporting to VIHDA and 3 surgical-medical teaching hospitals with an advanced ICP and Joint Commission International accreditation (Hospital Italiano de Buenos Aires, Hospital Universitario Austral, Hospital Aleman). The VIHDA definition was used to define central line-associated bloodstream infection (CLABSI), catheter-related urinary infection (CAUTI), and ventilator-associated pneumonia (VAP). The rates were compared as adjusted reasons for exposure time using openepi.com software provided by the CDC. Results: Device associated infection rates in hospitals with advanced ICPs and in hospitals in the national surveillance system in Argentina are shown in Table 1. Compliance with infection control measures and bundles for device-associated infections in the 3 hospitals with advanced ICPs was >80%. No data were available for the rest of hospitals included the national surveillance system. Conclusions: Lower infection-control rates, catheter-related bloodstream infection and VAP, are possible in a middle-income country like Argentina when resources are allocated for this purpose and hospital leadership reinforces the efforts. Notably, all 3 hospitals improved their rates over time. The differences in catheter-related bloodstream infection and VAP rates between these hospitals and the rest of the hospitals in our surveillance system was significant and highlights the need for support when it comes to implementing ICPs.Funding: NoneDisclosures: Wanda Cornistein reports fees for conferences not related to this topic from the following speaker’s bureaus: Pfizer, Merck, and Becton Dickinson.
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Lian, Ming, and Hong Ya Fu. "The Research on Micro-Drive Device of Reflective Lens Frame with High Precision and Big Caliber." Key Engineering Materials 392-394 (October 2008): 836–40. http://dx.doi.org/10.4028/www.scientific.net/kem.392-394.836.
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A micro-drive device was developed to drive reflective lens frame in Inertial Confinement Fusion. The transmission consists of ball screw, flexible hinge and electrical control unit. Two different flexible hinges named straight round and cylinder interlaced flexible hinge were used in device. The communication between IPC and PLC is founded by MSComm, which realizes the distributing system. Tested on TM5 reflective lens frame of SG- III prototype facility, the precision achieved ±0.3μm/step, which meets the design target.
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Guest, Julian F., Karen Staines, and Nina Murphy. "Cost-effectiveness of using intermittent pneumatic compression to manage hard-to-heal venous leg ulcers in the UK." Journal of Wound Care 30, no. 7 (July 2, 2021): 544–52. http://dx.doi.org/10.12968/jowc.2021.30.7.544.
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Objective: To estimate whether thigh-administered intermittent pneumatic compression (IPC) could potentially afford the UK's National Health Service (NHS) a cost-effective intervention for the management of hard-to-heal venous leg ulcers (VLUs). Method: A Markov model was constructed depicting the management of hard-to-heal VLUs with IPC plus standard care or standard care alone over a period of 24 weeks. The model estimated the cost-effectiveness of the two interventions in terms of the incremental cost per quality-adjusted life year (QALY) gained at 2019/20 prices. Results: Treatment of hard-to-heal VLUs with IPC plus standard care instead of standard care alone is expected to increase the probability of healing by 58% (from 0.24 to 0.38) at 24 weeks and increase health-related quality of life over 24 weeks from 0.32 to 0.34 QALYs per patient. Additionally, the cost of treating with IPC plus standard care (£3,020 per patient) instead of standard care alone (£3,037 per patient) has the potential to be cost-neutral if use of this device is stopped after 6 weeks in non-improving wounds. Sensitivity analysis showed that the relative cost-effectiveness of IPC plus standard care remains <£20,000 per QALY with plausible variations in costs and effectiveness. Conclusion: Within the limitations of this study, the addition of IPC to standard care potentially affords a cost-effective treatment to the NHS for managing hard-to-heal VLUs. However, a controlled study is required to validate the outcomes of this analysis.
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Pál, Zoltán, Gabriella Terhes, Márta Szűcs, and Edit Urbán. "Tubo-Ovarian Abscess Caused by Pasteurella multocida in a Young, Intrauterine Device–Wearing Woman Without Animal Contact." Infectious Diseases in Clinical Practice 26, no. 3 (May 2018): 173–74. http://dx.doi.org/10.1097/ipc.0000000000000525.
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van Bemmelen, Paul S., Weiss-Olmanni, and Ricotta. "Die schnelle intermittierende Kompression verbessert die Hautzirkulation des chronisch ischämischen Beins mit Wadenarterienverschlüssen." Vasa 29, no. 1 (February 1, 2000): 47–52. http://dx.doi.org/10.1024/0301-1526.29.1.47.
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Background: Intermittent pneumatic compression (IPC) has been shown, by duplex, to increase popliteal artery flow in normal legs and in legs with superficial femoral artery occlusion. The objective of this study was to see if IPC improves distal circulation in legs with severe infra-popliteal disease. Patients and methods: Sixteen chronically ischemic legs with arteriographically demonstrated crural or pedal disease were studied during compression with an ArtAssist® compression-device. This device delivers rapid compression of the foot and calf. Cutaneous laser-Doppler flux was measured continuously at the dorsal aspect of the distal forefoot. The findings were compared to those in thirteen normal controls of similar age. Results: In ischemic legs, the spontaneous changes in skin-flux are minimal: mean resting flux in sitting position was 0.87 ± 0.46 AU (Arbitrary Units). Upon activation of the compression device the maximum flux increased to 4.55 ± 1.35 AU. The difference was statistically significant (p < 0.001). This response was similar to that in normal controls. Conclusion: Arterial flow augmentation upon compression is associated with increased skin-flux. This response remains present in severe disease of the crural outflow-arteries. Further investigation to define the role of intermittent compression for management of chronic arterial disease is warranted.
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Zhu, Yong Lu, Yin Biao Guo, Xiao Long Ke, and Lu Shuang Chen. "Device and Method for Large Size Aspheric Measurement." Advanced Materials Research 97-101 (March 2010): 4324–27. http://dx.doi.org/10.4028/www.scientific.net/amr.97-101.4324.
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In this paper, the necessary instrument and control system called the “Large Size Four-axis Measurement System” which used for measuring large size aspheric surface have been designed and established. Then the development of semi-meridian measurement method on basis of large size four-axis detection system has been reported. The measurement paths were planed and the measurement program was performed on the IPC. The method can significantly reduced the align error caused by the aspheric center which is not coincidence with the rotation platform center. With the measurement system, an aspheric surface was successfully measured; whose radius of semi-meridian was 55 mm. The experimental results show that the developed methods are simple and rapid. The measurement accuracy can satisfy requirement of aspheric surface.
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Cho, Yunkoo, Young Jae Han, Jumi Hwang, Jiwon Yu, Sangbaek Kim, Chulung Lee, Sugil Lee, and Kyung Pyo Yi. "Identifying Technology Opportunities for Electric Motors of Railway Vehicles with Patent Analysis." Sustainability 13, no. 5 (February 24, 2021): 2424. http://dx.doi.org/10.3390/su13052424.
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An electric motor is a device that changes electrical energy into mechanical energy for railway vehicles. When developing the electric motor, it used to be developed simply for structures or control methods of the motor itself without considering convergence with other devices or technologies. However, as the railway vehicles become more advanced, technology development through convergence with other devices or technologies is spreading. Therefore, based on patent data related to the electric motors applied to the railway vehicles, this research aims to carry out technical forecasting for establishing research and development (R and D) direction for new technologies by predicting vacant technologies from the point of view of technology convergence. In other words, we studied how to find the vacant technologies in a field of convergence technology for the electric motor of the railway vehicles by analyzing the patent data. More specifically, we search the patents data associated with the electric motor of the railway vehicle that contain multiple IPC codes, and use multiple IPC codes to determine the field of convergence technology. In addition, we extract keywords from the patents data related to each of the determined convergence technologies and define the vacant technologies by interpreting the field of convergence technology and the extracted keywords.
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Ramsay, S. D., R. M. Pilliar, Liu Yang, and J. P. Santerre. "Calcium Polyphosphate/Polyvinyl Acid-Carbonate Copolymer Based Composites for Use in Biodegradable Load-Bearing Composites for Orthopaedic Implant Fabrication." Key Engineering Materials 284-286 (April 2005): 787–90. http://dx.doi.org/10.4028/www.scientific.net/kem.284-286.787.
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Particle filled composite and interpetrating phase composite (IPC) structures are investigated for the production of a biodegradable composite for use as a fixation device in various osteosynthesis applications. The composites consist of calcium polyphosphate, present as either a dispersion of 106 – 150 µm particles or as a sintered scaffold-like structure having open porosity in the range of 18 – 35 volume percent, and a polyvinyl acid-carbonate copolymer that is cured in situ via free radical polymerization. The performance of each composite structure is evaluated in terms of its three-point bend strength and elastic constant. Plane strain fracture toughness values are also presented for IPC samples based on CPP sintered to have 30 volume percent porosity.
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Zhu, Shao Fu, and Zhi Xiang Yin. "Research of Screw-Machine Electrical Control System Based on IPC." Advanced Materials Research 1044-1045 (October 2014): 837–40. http://dx.doi.org/10.4028/www.scientific.net/amr.1044-1045.837.
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Bolt as a connecting device plays more and more important role in various types of industry equipment. According to the needs of the domestic industry and on the basis of the automatic screw tightening control system requirements, this paper describes the design of screw-Machine electrical control system based on IPC independently.The main work probes into the electrical control system’s hardware structure and software structure.
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Broderick, Barry J., Gavin J. Corley, Fabio Quondamatteo, Paul P. Breen, Jorge Serrador, and Gearóid ÓLaighin. "Venous emptying from the foot: influences of weight bearing, toe curls, electrical stimulation, passive compression, and posture." Journal of Applied Physiology 109, no. 4 (October 2010): 1045–52. http://dx.doi.org/10.1152/japplphysiol.00231.2010.
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This study investigated the hemodynamic properties of the plantar venous plexus (PVP), a peripheral venous pump in the human foot, with Doppler ultrasound. We investigated how different ways of introducing mechanical changes vary in effectiveness of displacing blood volume from the PVP. The contribution of the PVP was analyzed during both natural and device-elicited compressions. Natural compressions consisted of weight bearing on the foot and toe curl exercises. Device-elicited compressions consisted of intermittent pneumatic compression (IPC) of the foot and electrically elicited foot muscle contractions. Ten healthy participants had their posterior tibial, peroneal, anterior tibial, and popliteal vein blood flow monitored while performing these natural and device-elicited compressions of the PVP supine and in an upright position. Results indicated that 1) natural compression of the PVP, weight bearing and toe curls, expelled a significantly larger volume of blood than device-elicited PVP compression, IPC and electrical stimulation; 2) there was no difference between the venous volume elicited by weight bearing and by toe curls; 3) expelled venous volume recorded at the popliteal vein under all test conditions was significantly greater than that recorded from the posterior tibial and peroneal veins; 4) there was no significant difference between the volume in the posterior tibial and peroneal veins; 5) ejected venous volume recorded in the upright position was significantly higher than that recorded in the supine position. Our study shows that weight bearing and toe curls make similar contributions to venous emptying of the foot.
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SUN, XIAO-NAN, AN-PING LIU, and XIAO-SONG SUN. "STRUCTURE SIZE'S EFFECT ON THE PERFORMANCE OF THE SPM PIEZOELECTRIC MICROCANTILEVER." Modern Physics Letters B 27, no. 22 (August 20, 2013): 1350164. http://dx.doi.org/10.1142/s0217984913501649.
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For the piezoelectric microcantilever, a device is designed for the IPC-208B type scanning probe microscope. We analyzed the structure size's effect on the piezoelectric cantilever device, and find that the deformation displacement of the cantilever tip depends mainly on the length, while the output voltage of piezoelectric layer depends on the aspect ratio of cantilever itself. We choose the device structure as the length and width dimensions of 200 μm × 40 μm, piezoelectric thickness of 2.0 μm, and electrode layer of 0.2 μm for the experimental analysis. We conclude that the device voltage sensitivity is 0.43 mV/nN, and tip displacement sensitivity up to 4.6 nm/nN, which shows that the output voltage is in the mV-level, is easy to meet the input requirements of testing circuit. The differentiable range can be in nanometer scale, which meets the SPM work requirements, and the device performance is considerable.
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Kubiak, Ireneusz. "Radiated Information Infiltration Channel Concerning Programme Based Solutions for Information Protection Prior to its Non-Invasive Acquisition." Image Processing & Communications 20, no. 1 (March 1, 2015): 13–22. http://dx.doi.org/10.1515/ipc-2015-0026.
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Abstract The methods for protection of non-public information against electromagnetic infiltration are very important issue that requires constant development of technological advancement of the devices on which such information is processed. The current methods are the solutions regarding construction of the devices and organisation oriented solutions that are related mainly to physically limiting access to such information. The new area concerning electromagnetic protection of processed information by means of electricity is the programme based methods. These, however, do not deal with the issues of cryptographic information protection. The programme based protection uses special shapes of fonts, which having passed through the Radiated Information Infiltration Channel (RIIC) make reading of protected data impossible. This is achieved through eliminating specific character elements (roots, sheriffs, arcs) and maximising the degree of similarity between them. However, the assimilation should not make the original characters, i.e. those displayed on the screen of the device that processes these data harder to differentiate between them. Yet, is maximising the degree of similarity between the characters of a safe font decisive for electromagnetic security? The article presents two font solutions of similar character shape, which are however much different from one another in terms of their degree of recognisability on the output of the RIIC due to structural detail. This shows that maximising similarity between characters in their original form does not have to increase the degree of resistance to recognition of the secondary characters.
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Tseng, Katie K., Jyoti Joshi, Susmita Shrivastava, and Eili Klein. "Estimating the cost of interventions to improve water, sanitation and hygiene in healthcare facilities across India." BMJ Global Health 5, no. 12 (December 2020): e003045. http://dx.doi.org/10.1136/bmjgh-2020-003045.
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IntroductionDespite increasing utilisation of institutional healthcare in India, many healthcare facilities (HCFs) lack access to basic water, sanitation and hygiene (WASH) services. WASH services protect patients by improving infection prevention and control (IPC), which in turn can reduce the burden of healthcare-associated infections (HAIs). However, data on the cost of implementing WASH interventions in Indian HCFs are limited.MethodsWe surveyed 32 HCFs across India, varying in size, type and setting to obtain the direct costs of providing improved water supply, sanitation and IPC-supporting infrastructure. We calculated the average costs of WASH interventions and the number of HCFs nationwide requiring investments in WASH to estimate the financial cost of improving WASH across India’s public healthcare system over 1 year.ResultsImproving WASH across India’s public healthcare sector and sustaining services among upgraded facilities for 1 year would cost US$354 million in capital costs and US$289 million in recurrent costs from the provider perspective. The most costly interventions were those on water (US$238 million), linen reprocessing (US$112 million) and sanitation (US$104 million), while the least costly were interventions on hand hygiene (US$52 million), medical device reprocessing (US$56 million) and environmental surface cleaning (US$80 million). Overall, investments in rural HCFs would account for 64.4% of total costs, of which 52.3% would go towards primary health centres.ConclusionImproving IPC in Indian public HCFs can aid in the prevention of HAIs to reduce the spread of antimicrobial resistance. Although WASH is a necessary component of IPC, coverage remains low in HCFs in India. Using ex-post costs, our results estimate the investment levels needed to improve WASH across the Indian public healthcare system and provide a basis for policymakers to support IPC-related National Action Plan activities for antimicrobial resistance through investments in WASH.
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Hughes, Luke, Owen Jeffries, Mark Waldron, Ben Rosenblatt, Conor Gissane, Bruce Paton, and Stephen D. Patterson. "Influence and reliability of lower-limb arterial occlusion pressure at different body positions." PeerJ 6 (May 2, 2018): e4697. http://dx.doi.org/10.7717/peerj.4697.
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Background Total arterial occlusive pressure (AOP) is used to prescribe pressures for surgery, blood flow restriction exercise (BFRE) and ischemic preconditioning (IPC). AOP is often measured in a supine position; however, the influence of body position on AOP measurement is unknown and may influence level of occlusion in different positions during BFR and IPC. The aim of this study was therefore to investigate the influence of body position on AOP. Methods Fifty healthy individuals (age = 29 ± 6 y) underwent AOP measurements on the dominant lower-limb in supine, seated and standing positions in a randomised order. AOP was measured automatically using the Delfi Personalised Tourniquet System device, with each measurement separated by 5 min of rest. Results Arterial occlusive pressure was significantly lower in the supine position compared to the seated position (187.00 ± 32.5 vs 204.00 ± 28.5 mmHg, p < 0.001) and standing position (187.00 ± 32.5 vs 241.50 ± 49.3 mmHg, p < 0.001). AOP was significantly higher in the standing position compared to the seated position (241.50 ± 49.3 vs 204.00 ± 28.5 mmHg, p < 0.001). Discussion Arterial occlusive pressure measurement is body position dependent, thus for accurate prescription of occlusion pressure during surgery, BFR and IPC, AOP should be measured in the position intended for subsequent application of occlusion.
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Drożdż, Michał, and Tomasz Kryjak. "FPGA Implementation of Multi-scale Face Detection Using HOG Features and SVM Classifier." Image Processing & Communications 21, no. 3 (September 1, 2016): 27–44. http://dx.doi.org/10.1515/ipc-2016-0014.
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Abstract In this paper an FPGA based embedded vision system for face detection is presented. The sliding detection window, HOG+SVM algorithm and multi-scale image processing were used and extensively described. The applied computation parallelizations allowed to obtain real-time processing of a 1280 × 720 @ 50Hz video stream. The presented module has been verified on the Zybo development board with Zynq SoC device from Xilinx. It can be used in a vast number of vision systems, including diver fatigue monitoring.
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Cole, Z., B. McGee, J. Stabach, C. B. O'Neal, and B. Passmore. "A High Temperature, High Power Density Package for SiC and GaN Power Devices." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2015, HiTEN (January 1, 2015): 000208–13. http://dx.doi.org/10.4071/hiten-session6-paper6_3.
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In this work, a compact 600 – 1700 V high current power package housing either silicon carbide (SiC) or gallium nitride (GaN) power die was designed and developed. Several notable configurations of the package include diode half-bridges, co-packed MOSFET-diode pairs, and cascode configured GaN devices. In order to avoid a significant redesign effort for each new application or improvement in device technology, a device-neutral design strategy enables the use of a variety of die types from any manufacturer depending on the end-use application's requirements. The basic SOT-227 is a widely used package type found in everything from electronic welders and power supplies to motor controls and inverters. This module is a variant of that style of package which also addresses some issues that a standard SOT-227 package has when used in higher voltage applications; it has increased creepage and clearance distances which meet IPC, UL, and IEC standards up to 1700 volts while retaining an isolated substrate. It also has low parasitic values in comparison to the SOT-227. One of the key elements of this design is the removal of the baseplate. This allows for far lower weight, volume, and cost as well as reduced manufacturing complexity. The wide bandgap power package is composed of high temperature capable materials, which allow for the high junction temperatures inherent in these high power density devices. This paves the way for the design of a small, low-profile package with low parasitic inductances and a small junction-to-case thermal resistance. This paper will discuss the mechanical design of the power package as well as the three-dimensional finite-element modeling and analysis of the thermal, electrical, and mechanical characteristics. In addition, the electrical characteristics as a function of temperature of the power module up to 225 °C will be presented.
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Zelikovski, A., Z. Loberman, G. Rauh, and F. X. Breu. "Efficacy and safety of a new pneumatic compression device for peripheral arterial disease with intermittent claudication." Phlebologie 43, no. 01 (January 2014): 5–11. http://dx.doi.org/10.12687/phleb2184-01-2014.
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SummaryBackground: The primary objective of the study was to demonstrate that Intermittent Pneumatic Compression (IPC) with the new ANGIO PRESS™ IPC device can significantly improve the walking distance, i.e. pain free initial intermittent claudication distance (ICD) and the absolute claudication distance (ACD) in patients with stage II peripheral arterial occlusive disease (PAD) compared to control treatment.Patients and methods: A total of 67 patients were screened and randomized into the study in four clinical centers based in Israel and Germany. Patients were randomized to one of the two study groups: 1. Medication treatment with ASS / Clopidogrel and standardized walking exercise with additional IPC treatment, two times per day for 1.5 hours for three months. 2. Medication treatment and standardized walking exercise alone. The safety and efficacy of the ANGIO PRESS™ device was determined for the treatment of symptoms of PAD Fontaine stage IIb by measuring the pain free walking distance, the absolute walking distance, the ankle-brachial-index (ABI) and the walking pain. Additionally the quality of life (QOL) of each subject was assessed according to the SF-36 questionnaire. Subjects were followed up at six weeks and 3 months.Results: No statistical differences were observed in any of the demographic characteristics and baseline scores. A significant difference was found between the treatment and control group in the ACD and the walking pain scale. Subjects in the treatment group improved their total walking distance in 54 meters, an improvement of 40% compared to their baseline distance. The walking pain improved by 1.89 points in the treatment group. Despite the fact that the difference in the ICD between the study groups were not found significantly different, the mean change from baseline in ICD score at the three month visit in the treatment group of 37 m was found statistically significant (p=0.0002), whereas the mean change of 20.7 m in the control group was not found significantly different. No changes were found between the study groups in the ABI and the QOL. The treatment was easy to tolerate and most patients suffered no side-effects, nor complained of any significant discomfort. Two subjects suffered from SAEs which were determined as not related to the study treatment.Conclusion: The ANGIO PRESS™ is a non-invasive, easy to use, home treatment which is safe and moderately effective for the treatment of intermittent claudication. The ability of subjects to improve their absolute walking distance and reduce the walking pain on the same time may offer a significant value for patients at early stages of PAD who are not indicated for an invasive treatment.
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Zou, Tao, Heng Cheng Xu, and Wen Jie Yang. "Design of Intelligentized Testing System of Airborne Electromechanical Controlling Device." Advanced Materials Research 466-467 (February 2012): 541–45. http://dx.doi.org/10.4028/www.scientific.net/amr.466-467.541.
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Electromechanical controlling devices (ECDs) plays an important role in electromechanical controlling system. There is a large quantity of electromechanical controlling devices (ECDs) on an airplane which concerning every specialists, and it has a very complex logic control. We developed this system because the construction ,working principle and working condition of the ECD often result in latent failure an some kind of failure that hard to carry out troubleshooting .The system centered by an embedded IPC applies module design in both hardware and software system, and it develop testing application with AVI running under Windows XP operating system, which makes it bound to have certain qualities ,such as good universality, integrity, complete functions, easy to operate and high degree of automation, also it is reliable , maintainable, flexible, adaptive, and the ability on expansion is very impressing . Application of this system will greatly improve the working efficiency and cut the time of inspection and troubleshooting, which means better intact rate of combat readiness of aircraft and mission availability rate, with significant military and economic benefit.
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Koryciak, Sebastian, Maciej Barszczowski, Agnieszka Dąbrowska-Boruch, and Kazimierz Wiatr. "Medical Visualizer 3D: Hardware Controller for Dmd Module." Image Processing & Communications 19, no. 2-3 (September 1, 2014): 15–23. http://dx.doi.org/10.1515/ipc-2015-0006.
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Abstract In this paper an implementation of the module responsible for the control of micro-mirror array for later use in projection is described. Existing technologies allow for projections of medical images in Digital Imaging and Communications in Medicine format only in the form of a flat 2D image. The 3D Visualizer will allow to display medical images in three dimensions using its own projection surface. The matrix controlling device has been largely developed on the basis of reverse engineering studies carried out on the functional system based on a driver from Texas Instruments. Driver is built on the FPGA with implemented soft processor from Xilinx - MicroBlaze.
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Kułaga, Rafał, and Marek Gorgoń. "FPGA Implementation of Decision Trees and Tree Ensembles for Character Recognition in Vivado Hls." Image Processing & Communications 19, no. 2-3 (September 1, 2014): 71–82. http://dx.doi.org/10.1515/ipc-2015-0012.
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Abstract Decision trees and decision tree ensembles are popular machine learning methods, used for classification and regression. In this paper, an FPGA implementation of decision trees and tree ensembles for letter and digit recognition in Vivado High-Level Synthesis is presented. Two publicly available datasets were used at both training and testing stages. Different optimizations for tree code and tree node layout in memory are considered. Classification accuracy, throughput and resource usage for different training algorithms, tree depths and ensemble sizes are discussed. The correctness of the module’s operation was verified using C/RTL cosimulation and on a Zynq-7000 SoC device, using Xillybus IP core for data transfer between the processing system and the programmable logic.
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Kańka, Tomasz, Tomasz Kryjak, and Marek Gorgon. "FPGA Implementation of Multi-scale Pedestrian Detection in Thermal Images." Image Processing & Communications 21, no. 3 (September 1, 2016): 55–67. http://dx.doi.org/10.1515/ipc-2016-0016.
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Abstract In this paper an embedded vision system for human silhouette detection in thermal images is presented. As the computing platform a reprogrammable device (FPGA – Field Programmable Gate Array) is used. The detection algorithm is based on a sliding window approach, which content is compared with a probabilistic template. Moreover, detection is four scales in supported. On the used test database, the proposed method obtained 97% accuracy, with average one false detection per frame. Due to the used parallelization and pipelining real-time processing for 720 × 480 @ 50 fps and 1280 × 720 @ 50 fps video streams was achieved. The system has been practically verified in a test setup with a thermal camera.
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Gocławski, Jarosław, and Joanna Sekulska-Nalewajko. "A New Idea of Fast Three-Dimensional Median Filtering for Despeckling of Optical Coherence Tomography Images." Image Processing & Communications 20, no. 3 (September 1, 2015): 25–34. http://dx.doi.org/10.1515/ipc-2015-0037.
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Abstract Median filtering has been widely used in image processing for noise removal because it can significantly reduce the power of noise while limiting edge blurring. This filtering is still a challenging task in the case of three-dimensional images containing up to a billion of voxels, especially for large size filtering windows. The authors encountered the problem when applying median filter to speckle noise reduction in optical coherence tomography images acquired by the Spark OCT systems. In the paper a new approach to the GPU (Graphics Processing Unit) based median smoothing has been proposed, which uses two-step evaluation of local intensity histograms stored in the shared memory of a graphic device. The solution is able to output about 50 million voxels per second while processing the neighbourhood of 125 voxels by Quadro K6000 graphic card configured on the Kepler architecture.
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Liu, Shijie, Zhaoyou Ma, Xinming Guo, Xucai Zhuang, Yonghong Chen, Jianqing Wu, and Jianping Xing. "Research and development of intelligent safety sensor integration devices for autonomous driving." Journal of Physics: Conference Series 2196, no. 1 (February 1, 2022): 012002. http://dx.doi.org/10.1088/1742-6596/2196/1/012002.
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Abstract Grasping the status of vehicles timely and accurately is the key to avoid traffic accidents and collecting data from multi-sensors is significant for development of road-side intelligent sensor technology. In this paper, LiDAR (Light Detection and Ranging) and camera sensors are tested, and the sensor data can be processed and analyzed, and the display can be integrated. In this paper, a multi-sensor data acquisition integration device based on Raspberry Pi is proposed, which can realize the optimal processing of data and simultaneous acquisition display function. This method avoids the tedium of using an IPC and improves the efficiency of data acquisition and sensor integration.
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Drzazga, Jakub Bogdan. "Design of a Telemedical Vest for Sleep Disorder Diagnosis - A Preliminary Analysis." Image Processing & Communications 23, no. 1 (March 1, 2018): 27–37. http://dx.doi.org/10.1515/ipc-2018-0004.
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Abstract This paper presents the components of a sleep apnea analysis device that have been evaluated for diagnosis suitability and expected difficulties. The medical background and statistics of sleep apnea are presented. Work related to the topic is then discussed. A description of the system components follows: ECG, respiratory effort, nasal flow and pulse oximetry. Problems expected with all of these measurements are then outlined both from the methodological and electronic perspective. The main difficulties identified are the necessity to maintain the exact location of the sensors on the patient’s body and vulnerability of the sensors to variations of the environmental conditions. Challenges on the electronic aspect are then discussed, which are mainly caused by the need of measuring small signals (noise, interference) and compensation of the sensors’ nonlinearity. Power supply design in the context of the measurement accuracy is also considered followed by an evaluation of the impact of telemedical function presence. The paper ends with a summary and conclusions.
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Hoda, Farazul, Rishabh Verma, Mawrah Arshad, Ali Nasir Siddiqui, Mohammad Ahmed Khan, Mohammad Akhtar, and Abul Kalam Najmi. "Materiovigilance: Concept, Structure and Emerging Perspective for Patient’s Safety in India." Drug Research 70, no. 09 (August 3, 2020): 429–36. http://dx.doi.org/10.1055/a-1195-1945.
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AbstractThere has been an escalation in the number, diversity, and complexity of medical devices. Regulation of these devices has also advanced due to the requirement of better regulatory perspective induced due to elevation in the number of adverse events associated with medical devices. All over the globe, various measures are undertaken to provide better safety to the patients along with attempts to improve the standard of medical devices. The initial and ultimate objective of the concept happens to be unfailingly to ensure patient safety as well as impart required guidance for both manufacturers and adept authorities enabling them to superintend cases coherently and appropriately. Materiovigilance programme of India (MvPI) was launched by the Drug Controller General of India at the Indian Pharmacopoeia commission (IPC) in Ghaziabad in 2015. The main purpose of this initiative is to monitor adverse events associated with medical devices in order to generate safety data, create awareness among the various stakeholders, and prescribe best practices for patient safety. Whilst the reforms in regulations have proposed policies and designs to elucidate, consolidate and accelerate the processes involved in manufacturing and importing medical devices to India, they consistently carry their challenges and limitations. To eliminate such complications the guidelines and regulations are anticipated to be implemented appropriately with the efficacious conclusion. India has been evident in matching with advancements in the World Medical Device regulation scenario, the current review at hand takes upon the question of ‘how successful has it been so far’?
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Liu, Hai Fang, Rui Wang, and Shi Sheng Zhong. "Design and Implementation of the Airborne Laser Effector for Autonomous Pipeline Alignment." Applied Mechanics and Materials 496-500 (January 2014): 1327–32. http://dx.doi.org/10.4028/www.scientific.net/amm.496-500.1327.
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Abstract. High-accuracy beam pointing is one of the key problems in the airborne laser remote sensing of natural gas pipeline leak. In response to the domestic demand for the long-distance natural pipeline leak detection, this study proposes an airborne laser effector for autonomous pipeline alignment based on CH4/H2S detector. Mainly structured on 2DOF serial mechanism, the device under discussion is designed with a control system operated on IPC and PMAC, followed by the design of hierarchical modular software. Once completed, the device is placed for indoors pointing experiments as well as simulated airborne test. The results show the effector can conduct full-angle scan of the pod area, achieve a static measuring precision of less than 0.4m as an alignment point is about 100 meters from the laser and detect leakage in dynamic simulated experiment, which meets with the design requirements. In other words, both the design and control algorithm are proved to be feasible. The effector holds an important engineering value for solving the problem of remote detection of the natural gas pipeline leakage.
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Huang, Felicia Scaggs, Andrea Ankrum, Cincinnati Hospital, Zheyi Teoh, Joshua Courter, Francesco, Mangano, Karin Bierbrauer, and Josh. "Learnings from a Cutibacterium acnes pseudo-outbreak in pediatric neurosurgical patients." Antimicrobial Stewardship & Healthcare Epidemiology 2, S1 (May 16, 2022): s57—s58. http://dx.doi.org/10.1017/ash.2022.166.
Full textAbstract:
Background:Cutibacterium acnes is normal skin flora as well as a common culture contaminant. It can cause infections in the setting of sterile implants, although clinical presentations can be subtle. Differentiating true infection from sample contamination is challenging and has implications for patient care. We describe an investigation of a cluster of 7 hospitalized pediatric patients with C. acnes isolated from anaerobic cultures of cerebrospinal fluid (CSF) over 3 weeks at a quaternary-care children’s hospital. Methods: An outbreak response was coordinated between the infection prevention and control (IPC), microbiology, and neurosurgery teams. We defined a case as a hospitalized patient with C. acnes isolated from a CSF culture beginning in November 2020. We reviewed charts of all cases and CSF culture collection on all case units, transport to and processing at the microbiology laboratory, and the IPC team measured adherence for all processes. Results: There were 8 positive cultures in 7 cases from November 10 to 27, 2020. The median case age was 2 months (range, 0–119). Cases occurred on 4 different units. All positive patients had at least 1 implanted neurosurgical device used for CSF drainage. There were no clear commonalities in surgeon responsible for device placement, hardware type placed, or staff collecting CSF samples. A standard protocol for CSF collection was followed for all cases. Overall, 3 patients cleared cultures without intervention, 2 received oral antibiotics, and 2 underwent surgical removal of their device. Specimen processing was unchanged, although due to supply issues, an alternative anaerobic culture media (Anaerobic Systems, Morgan Hills, CA) was used for 6 weeks, during which all cases were identified. Compared to routine media, the alternative is known to enhance organism detection. The company reported no concerns for media contamination or C. acnes outbreaks. Once routine media became available, CSF culture positivity for C. acnes returned to baseline (late November or early December) (Fig. 1). Conclusions: We identified a likely pseudo-outbreak related to temporary use of a more sensitive culture media. No direct patient harm was identified, although many had increased risk of harm by surgical intervention or prolonged length of stay. Technological advances may enhance organism identification but challenge existing paradigms of care. More studies are needed to better delineate the intersection of diagnostic advancements with patient care standards.Funding: NoneDisclosures: None