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Academic literature on the topic 'Pulse oximetry'

Author: Grafiati

Published: 4 June 2021

Last updated: 21 February 2023

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Journal articles on the topic "Pulse oximetry"

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Pak, Ju Geon, and Kee Hyun Park. "Advanced Pulse Oximetry System for Remote Monitoring and Management." Journal of Biomedicine and Biotechnology 2012 (2012): 1–8. http://dx.doi.org/10.1155/2012/930582.

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Pulse oximetry data such as saturation of peripheral oxygen (SpO2) and pulse rate are vital signals for early diagnosis of heart disease. Therefore, various pulse oximeters have been developed continuously. However, some of the existing pulse oximeters are not equipped with communication capabilities, and consequently, the continuous monitoring of patient health is restricted. Moreover, even though certain oximeters have been built as network models, they focus on exchanging only pulse oximetry data, and they do not provide sufficient device management functions. In this paper, we propose an advanced pulse oximetry system for remote monitoring and management. The system consists of a networked pulse oximeter and a personal monitoring server. The proposed pulse oximeter measures a patient’s pulse oximetry data and transmits the data to the personal monitoring server. The personal monitoring server then analyzes the received data and displays the results to the patient. Furthermore, for device management purposes, operational errors that occur in the pulse oximeter are reported to the personal monitoring server, and the system configurations of the pulse oximeter, such as thresholds and measurement targets, are modified by the server. We verify that the proposed pulse oximetry system operates efficiently and that it is appropriate for monitoring and managing a pulse oximeter in real time.

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Barker, Steven J., and Nitin K. Shah. "Effects of Motion on the Performance of Pulse Oximeters in Volunteers." Anesthesiology 85, no. 4 (October 1, 1996): 774–81. http://dx.doi.org/10.1097/00000542-199610000-00012.

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Background Pulse oximetry is considered a standard of care in both the operating room and the postanesthetic care unit, and it is widely used in all critical care settings. Pulse oximeters may fail to provide valid pulse oximetry data in various situations that produce low signal-to-noise ratio. Motion artifact is a common cause of oximeter failure and loss of accuracy. This study compares the accuracy and data dropout rates of three current pulse oximeters during standardized motion in healthy volunteers. Methods Ten healthy volunteers were monitored by three different pulse oximeters: Nellcor N-200, Nellcor N-3000, and Masimo SET (prototype). Sensors were placed on digits 2, 3, and 4 of the test hand, which was strapped to a mechanical motion table. The opposite hand was used as a stationary control and was monitored with the same pulse oximeters and an arterial cannula. Arterial oxygen saturation rate varied from 100% to 75% by changing the inspired oxygen concentration. While pulse oximetry was both constant and changing, the oximeter sensors were connected before and during motion. Oximeter errors and dropout rates were digitally recorded continuously during each experiment. Results If the oximeter was functioning before motion began, the following are the percentages of time when the instrument displayed a pulse oximetry value within 7% of control: N-200 = 76%, N-3000 = 87%, and Masimo = 99%. When the oximeter sensor was connected after the beginning of motion, the values were N-200 = 68%, N-3000 = 47%, and Masimo = 97%. If the alarm threshold was chosen as pulse oximetry less than 90%, then the positive predictive values (true alarms/ total alarms) are N-200 = 73%, N-3000 = 81%, and Masimo = 100%. In general, N-200 had the greatest pulse oximetry errors and N-3000 had the highest dropout rates. Conclusions The mechanical motions used in this study significantly affected oximeter function, particularly when the sensors were connected during motion, which requires signal acquisition during motion. The error and dropout rate performance of the Masimo was superior to that of the other two instruments during all test conditions. Masimo uses a new paradigm for oximeter signal processing, which appears to represent a significant advance in low signal-to-noise performance.

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da Costa, João Cordeiro, Paula Faustino, Ricardo Lima, Inês Ladeira, and Miguel Guimarães. "Research: Comparison of the Accuracy of a Pocket versus Standard Pulse Oximeter." Biomedical Instrumentation & Technology 50, no. 3 (May 1, 2016): 190–93. http://dx.doi.org/10.2345/0899-8205-50.3.190.

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Abstract Background: Pulse oximetry has become an essential tool in clinical practice. With patient self-management becoming more prevalent, pulse oximetry self-monitoring has the potential to become common practice in the near future. This study sought to compare the accuracy of two pulse oximeters, a high-quality standard pulse oximeter and an inexpensive pocket pulse oximeter, and to compare both devices with arterial blood co-oximetry oxygen saturation. Methods: A total of 95 patients (35.8% women; mean [±SD] age 63.1 ± 13.9 years; mean arterial pressure was 92 ± 12.0 mmHg; mean axillar temperature 36.3 ± 0.4°C) presenting to our hospital for blood gas analysis was evaluated. The Bland-Altman technique was performed to calculate bias and precision, as well as agreement limits. Student's t test was performed. Results: Standard oximeter presented 1.84% bias and a precision error of 1.80%. Pocket oximeter presented a bias of 1.85% and a precision error of 2.21%. Agreement limits were −1.69% to 5.37% (standard oximeter) and −2.48% to 6.18% (pocket oximeter). Conclusion: Both oximeters presented bias, which was expected given previous research. The pocket oximeter was less precise but had agreement limits that were comparable with current evidence. Pocket oximeters can be powerful allies in clinical monitoring of patients based on a self-monitoring/efficacy strategy.

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Yossef Hay, Ohad, Meir Cohen, Itamar Nitzan, Yair Kasirer, Sarit Shahroor-karni, Yitzhak Yitzhaky, Shlomo Engelberg, and Meir Nitzan. "Pulse Oximetry with Two Infrared Wavelengths without Calibration in Extracted Arterial Blood." Sensors 18, no. 10 (October 15, 2018): 3457. http://dx.doi.org/10.3390/s18103457.

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Oxygen saturation in arterial blood (SaO2) provides information about the performance of the respiratory system. Non-invasive measurement of SaO2 by commercial pulse oximeters (SpO2) make use of photoplethysmographic pulses in the red and infrared regions and utilizes the different spectra of light absorption by oxygenated and de-oxygenated hemoglobin. Because light scattering and optical path-lengths differ between the two wavelengths, commercial pulse oximeters require empirical calibration which is based on SaO2 measurement in extracted arterial blood. They are still prone to error, because the path-lengths difference between the two wavelengths varies among different subjects. We have developed modified pulse oximetry, which makes use of two nearby infrared wavelengths that have relatively similar scattering constants and path-lengths and does not require an invasive calibration step. In measurements performed on adults during breath holding, the two-infrared pulse oximeter and a commercial pulse oximeter showed similar changes in SpO2. The two pulse oximeters showed similar accuracy when compared to SaO2 measurement in extracted arterial blood (the gold standard) performed in intensive care units on newborns and children with an arterial line. Errors in SpO2 because of variability in path-lengths difference between the two wavelengths are expected to be smaller in the two-infrared pulse oximeter.

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DeSisto, Marie C. "Implementing Pulse Oximetry in the School Health Office." NASN School Nurse 27, no. 5 (August 20, 2012): 256–58. http://dx.doi.org/10.1177/1942602x12456432.

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Pulse oximetry can be a useful tool for professional school nurses who daily assess students with a variety of health issues and injuries. Pulse oximeters are now smaller and more affordable and, therefore, an option for school districts to purchase. Before implementing this new tool into their practice, school nurses must have an understanding of how pulse oximeters work and how they measure the oxygen saturation of arterial hemoglobin. A review of the literature will guide a nurse in developing clinical guidelines for practice and facilitating competency in using a pulse oximeter with the ultimate goal of improving student health assessments.

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Harris, Bronwyn U., Sarah Stewart, Archana Verma, Helena Hoen, Mary Lyn Stein, Gail Wright, and Chandra Ramamoorthy. "Accuracy of a portable pulse oximeter in monitoring hypoxemic infants with cyanotic heart disease." Cardiology in the Young 29, no. 8 (July 15, 2019): 1025–29. http://dx.doi.org/10.1017/s1047951119001355.

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AbstractObjective:Infants with single ventricle physiology have arterial oxygen saturations between 75 and 85%. Home monitoring with daily pulse oximetry is associated with improved interstage survival. They are typically sent home with expensive, bulky, hospital-grade pulse oximeters. This study evaluates the accuracy of both the currently used Masimo LNCS and a relatively inexpensive, portable, and equipped with Bluetooth technology study device, by comparing with the gold standard co-oximeter.Design:Prospective, observational study.Setting:Single institution, paediatric cardiac critical care unit, and neonatal ICU.Interventions:none.Patients:Twenty-four infants under 12 months of age with baseline oxygen saturation less than 90% due to cyanotic CHD.Measurements and Results:Pulse oximetry with WristOx2 3150 with infant sensors 8008 J (study device) and Masimo LCNS saturation sensor connected to a Philips monitor (hospital device) were measured simultaneously and compared to arterial oxy-haemoglobin saturation measured by co-oximetry. Statistical analysis evaluated the performances of each and compared to co-oximetry with Schuirmann’s TOST equivalence tests, with equivalence defined as an absolute difference of 5% saturation or less. Neither the study nor the hospital device met the predefined standard for equivalence when compared with co-oximetry. The study device reading was on average 4.0% higher than the co-oximeter, failing to show statistical equivalence (p = 0.16). The hospital device was 7.4% higher than the co-oximeter and also did not meet the predefined standard for equivalence (p = 0.97).Conclusion:Both devices tended to overestimate oxygen saturation in this patient population when compared to the gold standard, co-oximetry. The study device is at least as accurate as the hospital device and offers the advantage of being more portable with Bluetooth technology that allows reliable, efficient data transmission. Currently FDA-approved, smaller portable pulse oximeters can be considered for use in home monitoring programmes.

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Macnab, Andrew J., Lark Susak, Faith A. Gagnon, Janet Alred, and Charles Sun. "The Cost-Benefit of Pulse-Oximeter Use in the Prehospital Environment." Prehospital and Disaster Medicine 14, no. 4 (December 1999): 41–46. http://dx.doi.org/10.1017/s1049023x00027710.

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AbstractIntroduction:Pulse-oximetry has proven clinical value in Emergency Departments and Intensive Care Units. In the prehospital environment, oxygen is given routinely in many situations. It was hypothesized that the use of pulse oximeters in the prehospital setting would provide a measurable cost-benefit by reducing the amount of oxygen used.Methods:This was a prospective study conducted at 12 ambulance stations (average transport times >20 minutes). Standard care protocols and paramedic assessments were used to determine which patients received oxygen and the initial flow rate used. Pulse-oximetry measurements (oxygen-saturation measured by pulse oximetry) were then taken. If oxygen-saturation measured by pulse oximetry fell below 92% or rose above 96% (except in patients with chest pain), oxygen (O2) flow rates were adjusted. Costs of oxygen use were calculated: volume that would have been used based on initial flow rate; and volume actually used based on actual flow rates and transport time.Methods:A total of 1,907 patients were recruited. Oximetry and complete data were obtained on 1,787 (94%). Of these, 1,329 (74%) received O2 by standard protocol: 389 (27.5%) had the O2 flow decreased; 52 had it discontinued. Eighty-seven patients (6%) not requiring O2 standard protocol were hypoxemic (oxygen-saturation measured by pulse oximetry < 92%) by oximetry, and 71 patients (5%) receiving oxygen required flow rate increases. Overall, O2 consumption was reduced by 26% resulting in a cost-savings of $0.20 / patient. Prehospital pulse-oximetry allows unncessary or excessive oxygen therapy to be avoided in up to 55% of patients transported by ambulance and can help to identify suboptimally oxygenated patients (11%).Conclusion:Rationalizing the O2 administration using pulse-oximetry reduced O2 consumption. Other health care savings likely would result from a reduced incidence of suboptimal oxygenation. Oxygen cost-saving justifies oximeter purchase for each ambulance annually where patient volume exceeds 1,750, less frequently for lower call volumes, or in those services where the mean transport time is less than the 23 minute average noted in this study.

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Cheung, P., J. G. Hardman, and R. Whiteside. "The Effect of a Disposable Probe Cover on Pulse Oximetry." Anaesthesia and Intensive Care 30, no. 2 (April 2002): 211–14. http://dx.doi.org/10.1177/0310057x0203000215.

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The re-use of pulse oximeter probes presents the possibility of between-patient contamination. Use of a disposable polyethylene cover may reduce this risk. In a controlled, prospective study we examined the effect of such a cover on the accuracy of pulse oximetry. Each of ten volunteer subjects was monitored simultaneously by two identical Nellcor pulse oximeters, one with a plastic cover and the other, without a cover, used as a control. The pulse oximetry (SpO 2 ) reading for each probe was recorded while subjects breathed 21% O 2 and again while they breathed 10% O 2. The probe cover was then swapped onto the other probe and the recordings were repeated. Ninety-five per cent limits of agreement in SpO 2 (mean difference in SpO 2 (1.95 x standard deviation of difference) between covered and non-covered probes were -0.6% to 0.6% while breathing 21% oxygen and -2.0% to 2.9% while breathing 10% oxygen. We conclude that a protective plastic sheath may induce a small error in pulse oximetry reading that is most marked during hypoxaemia. This error is unlikely to be of clinical significance.

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Reich, David L., Aleksandar Timcenko, Carol A. Bodian, Jonathan Kraidin, Joshua Hofman, Marietta DePerio, Steven N. Konstadt, Tuula Kurki, and James B. Eisenkraft. "Predictors of Pulse Oximetry Data Failure." Anesthesiology 84, no. 4 (April 1, 1996): 859–64. http://dx.doi.org/10.1097/00000542-199604000-00013.

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Background Pulse oximeters have been reported to fail to record data in 1.12-2.50% of cases in which anesthesia records were handwritten. There is reason to believe that these may be underestimates. Computerized anesthesia records may provide insight into the true incidence of pulse oximetry data failures and factors that are associated with such failures. Methods The current study reviewed case files of 9,203 computerized anesthesia records. Pulse oximetry data failure was defined as the presence of at least one continuous gap in data > or = 10 min in duration in a case. A multivariate logistic regression model was used to identify predictors of pulse oximetry data failure, and a modified case-control method was used to determine whether extremes of blood pressure and hypothermia during the procedure were associated with pulse oximetry data failure. Results The overall incidence of cases that had at least one continuous gap of > or = 10 min in pulse oximetry data was 9.18%. The independent preoperative predictors of pulse oximetry data failure were ASA physical status 3,4, or 5 and orthopedic, vascular, and cardiac surgery. Intraoperative hypothermia, hypotension, hypertension, and duration of procedure were also independent risk factors for pulse oximetry data failure. Conclusions Pulse oximetry data failure rates based on review of computerized records were markedly greater than those previously reported. Physical status, type of surgery, and intraoperative variables were risk factors for pulse oximetry data failure. Regulations and expectations regarding pulse oximetry monitoring should reflect the limitations of the technology.

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Cheatham, Scott, Morey J. Kolber, and Michael P. Ernst. "Concurrent Validity of Arterial Blood Oxygen Saturation Measurements: A Preliminary Analysis of an iPad Pulse Oximeter and Traditional Pulse Oximeter Using Bluetooth." International Journal of Athletic Therapy and Training 19, no. 3 (May 2014): 37–42. http://dx.doi.org/10.1123/ijatt.2014-0005.

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Context:Pulse oximetry has become mobile with the use of smartphone and Bluetooth wireless technology. This technology offers many benefits but has not been extensively studied. There is a need to further validate its clinimetric properties for health professionals to provide proper guidance to patients.Objective:This investigation assessed the concurrent validity of the iSpO2pulse oximeter against a traditional pulse oximeter in measuring short-term resting blood oxygen saturation (SpO2) and pulse rate.Design:Observational study of reliability.Setting:University kinesiology laboratory.Participants:Thirty healthy, recre-ationally active adults (18 men, 12 women; mean age = 25.7 ± 5.46 years, mean height = 170.3cm ± 9.51, mean body mass = 76.4 kg ± 19.33).Intervention:Resting measurement of SpO2and pulse rate using the iSpO2pulse oximeter with the iPad Mini and a traditional pulse oximeter with Bluetooth.Main Outcome Measure:Resting SpO2and pulse rate were concurrently measured over 5 min.Results:The concurrent validity between the iSpO2and traditional pulse oximeter was moderate for measuring SpO2, intraclass correlation coeffcient (ICC)(3, 1) = .73,SEM= 0.70%, and good for pulse rate, ICC(3, 1) = .97,SEM= 1.74 beats per minute (bpm). The minimal detectable change at the 95% confidence interval for both instruments suggests that there may be 1.94% disagreement for SpO2and 4.82 bpm disagreement between pulse oximetry methods. The 95% limits of agreement (LoA) for measuring SpO2suggests that the iSpO2and traditional pulse oximeters may vary -0.28 ± 1.98%, or approximately 2%. The 95% LoA for measuring pulse rate suggests that the iSpO2and traditional pulse oximeter may vary 1.74 ± 4.98 bpm, potentially upward of 6 bpm. On the basis of the results of the LoA, it appears that there may be a slight systematic bias between the two devices, with the traditional pulse oximeter producing higher pulse rates than the iSpO2.Conclusion:The findings suggest that both instruments may be beneficial for indirect short-term measurements of resting SpO2and pulse rate.

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Dissertations / Theses on the topic "Pulse oximetry"

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East, Christine Elizabeth. "Fetal intrapartum pulse oximetry /." [St. Lucia, Qld.], 2006. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe19387.pdf.

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West, Ian Philip. "Optical fibre based pulse oximetry." Thesis, University of Liverpool, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.262607.

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de, Kock J. P. "Pulse oximetry : theoretical and experimental models." Thesis, University of Oxford, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.302928.

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Scott, Valerie Anne. "An investigation into retinal pulse oximetry." Thesis, University of Oxford, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.306934.

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Azorin-Peris, Vicente. "Opto-physiological modelling of pulse oximetry." Thesis, Loughborough University, 2008. https://dspace.lboro.ac.uk/2134/22498.

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Since its conception decades ago, pulse oximetry-the non-invasive measurement of arterial blood oxygen saturation in real-time-has proven its worth by achieving and maintaining its rank as a compulsory standard of patient monitoring. However, the use of oversimplified models to describe and implement the technology has limited its applicability and has had its evolution at a near standstill for the past decade. Currently available technology relies on empirical calibrations that consist of the correlation between simultaneous measurements from pulse oximeters and invasively acquired arterial blood samples from test subjects, mainly because the mathematical models underlying the technology are not sufficiently descriptive and accurate. Advances in knowledge of human tissue optical properties, computing power and sensing technology all contribute to a new realm of expansion for pulse oximetry modelling. This research project aims to develop a methodology for improving optophysiological models of pulse oximetry through the use of a validated Monte Carlo simulation platform for optical propagation in arbitrary geometries. The platform aims to arrive at a model that can predict the widest range of empirical outcomes while maintaining the highest possible level of accuracy. To this end, an empirical platform and a corresponding experimental protocol is developed towards an increasingly repeatable standard, thus providing an empirical output for validation of simulated data. Subsequently, the parameters and coefficients of the optophysiological model at the core of the simulation platform are iterated until a high level of correlation is achieved in their outputs. This gives way to a new approach to the opto-physiological modelling of pulse oximetry.

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Forsyth, Jason B. "Wearable Pulse Oximetry in Construction Environments." Thesis, Virginia Tech, 2010. http://hdl.handle.net/10919/31668.

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The goal of this project was to determine the feasibility of non-invasively monitoring the blood gases of construction workers for carbon monoxide exposure via pulse oximetry. In particular, this study sought to understand the impact of motion artifacts caused by the worker's activities and to determine if those activities would prevent the blood gas sensor from detecting the onset of carbon monoxide poisoning. This feasibility study was conducted using a blood oxygen sensor rather than a blood carbon monoxide sensor for several reasons. First, blood gas sensors that measure blood carbon monoxide are not readily available in suitable physical form factors. Second, sensors for blood oxygen and blood carbon monoxide operate on the same physical principles and thus will be affected in the same way by worker motions. Finally, using a blood oxygen sensor allowed the study to be conducted without exposing the human subjects to carbon monoxide. A user study was conducted to determine the distribution of motion artifacts that would be created during a typical work day. By comparing that distribution to a worst-case estimate of time to impairment, the probability that helmet will adequately monitor the worker can be established. The results of the study show that the helmet will provide a measurement capable of warning the user of on setting carbon monoxide poisoning with a probability greater than 99%.
Master of Science

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Glaros, Konstantinos N. "Low-power pulse oximetry and transimpedance amplifiers." Thesis, Imperial College London, 2011. http://hdl.handle.net/10044/1/9480.

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This work focuses on the design of low-power fully-integrated pulse oximeter front-ends and transimpedance amplifiers. Mathematical modelling and numerical simulations are employed to systematically quantify the trade-offs involved in the design of such a front-end and investigate the specific challenges arising from the requirements for low- power and full integration. The response speed, stability, power consumption and noise characteristics of the front-end's transimpedance amplifier are identified as significant points of interest. The performance of several transimpedance amplifier topologies is investigated. Topologies based on switched integration of the input are shown to be advantageous and employed in the design of a mixed-signal pulse oximeter front-end which was fabricated in the AMS 0:35 m technology. Extensive electrical and physiological measurements are reported showing that the proposed front-end can achieve LED power consumptions below 400 W and a total power consumption of less than 1 mW with a mean signal-to-noise ratio exceeding 39 dB at the detector. This performance is among the best ever reported and an order of magnitude better than most commercial pulse oximeters. Ways to lower this power consumption even further are identified. This work also reports on a novel self-biased photoreceptor (transimpedance amplifier) topology. A detailed comparison with previous state-of-the-art designs is carried out that provides new, useful insights on the photoreceptors' performance. The proposed design is concluded to be beneficial for applications where extremely low power and fast settling are of high significance.

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Tavakoli, Dastjerdi Maziar 1976. "An analog VLSI front end for pulse oximetry." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/36184.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2006.
Includes bibliographical references (p. 210-216).
Pulse oximetry is a fast, noninvasive, easy-to-use, and continuous method for monitoring the oxygen saturation of a patient's blood. In modem medical practice, blood oxygen level is considered one of the important vital signs of the body. The pulse oximeter system consists of an optoelectronic sensor that is normally placed on the subject's finger and a signal processing unit that computes the oxygen saturation. It uses red and infrared LEDs to illuminate the subject's finger. We present an advanced logarithmic photoreceptor which takes advantage of techniques such as distributed (cascaded) amplification, automatic loop gain control, and parasitic capacitance unilateralization to improve the performance and ameliorate certain shortcomings of existing logarithmic photoreceptors. These improvements allow us to reduce LED power significantly because of a more sensitive photoreceptor. Furthermore, the exploitation of the logarithmic nonlinearity inherent in transistors eliminates the need of performing some of the mathematical operations which are traditionally done in digital domain to calculate oxygen saturation and allows for a very area-efficient all-analog implementation. The need for an ADC and a DSP is thus completely eliminated.
(cont.) We show that our analog pulse oximeter constructed with red and infrared LEDs and our novel photoreceptor at its front end consumes 4.8mW of power whereas a custom-designed ASIC digital implementation (employing a conventional linear photoreceptor) and the best commercial pulse oximeter are estimated to dissipate 15.7mW and 55mW, respectively. The direct result of such power efficiency is that while the batteries in this commercial oximeter need replacement every 5 days (assuming four "AAA" 1.5V batteries are used), our analog pulse oximeter allows 2 months of operation. Therefore, our oximeter is well suited for portable medical applications such as continuous home-care monitoring for elderly or chronic patients, emergency patient transport, remote soldier monitoring, and wireless medical sensing.
by Maziar Tavakoli Dastjerdi.
Ph.D.

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Cloete, Garth. "Non-invasive artificial pulse oximetry : development & testing." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/19947.

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Thesis (MScEng)--Stellenbosch University, 2012.
ENGLISH ABSTRACT: The monitoring of patients in healthcare is of prime importance to ensure their efficient treatment. The monitoring of blood oxygen saturation in tissues affected by diseases or conditions that may negatively affect the function is a field that has grown in importance in recent times. This study involved the development and testing of a highly sensitive noninvasive blood oxygen saturation device. The device can be used to continuously monitor the condition of tissue affected by diseases which affect the blood flow through the tissue, and the oxygen usage in tissue. The device’s system was designed to specifically monitor occluded tissue which has low oxygen saturations and low perfusion. With the use of the device, it is possible to monitor the status of tissue affected by diseases such as meningococcemia and diabetes mellitus or conditions such as the recovery after plastic surgery. The study delved into all aspects involved in the development of a non-invasive artificial pulse oximeter, including but not limited to that of a detailed device design, signals analysis, animal in-vivo and laboratory in-vitro system design for the calibration of the system as well as human clinical validation and testing procedures. All these aspects were compared to determine the relative accuracies of the different models. Through testing it was shown that it is possible to non-invasively measure the mixed oxygen saturation in occluded tissue. However, without accurate validation techniques and methods of obtaining both arterial and venous blood samples in occluded tissue the system could not be fully validated for determining both the arterial and venous oxygen saturations in the human invivo study. Although the system was unable to accurately measure specifically the venous oxygenation it was able to measure the mixed oxygen saturation. With further research it would be possible to validate the system for measuring both the arterial and venous oxygen saturations.
AFRIKAANSE OPSOMMING: Die monitering van pasiënte in gesondheidsorg is van uiterste belang om doeltreffende behandeling te verseker. Die monitering van bloedsuurstofversadiging in weefsels wat geaffekteer word deur siektes of toestande wat ’n negatiewe impak kan hê op die funksie daarvan is ’n gebied wat aansienlike groei getoon het in die onlangse verlede. Die studie het die ontwikkeling en toetsing van ’n hoogs sensitiewe nieindringende bloedsuurstofversadigingsensor ingesluit. Hierdie sensor kan gebruik word om deurentyd die toestand van weefsel te monitor wat geaffekteer word deur siektes wat bloedvloei deur weefsel affekteer sowel as die suurstofgebruik in die weefsel. Die stelsel is ontwerp om spesifiek die ingeslote weefsel wat lae suurstofversadiging en lae perfusie het, te monitor. Deur gebruik te maak van die toestel is dit moontlik om die toestand van die weefsel wat geaffekteer word deur siektes soos meningococcemia en diabetes mellitus of toestande soos die herstel na plastiese sjirurgie te monitor. Die studie het gekyk na alle aspekte wat betrokke is in die ontwikkeling van ’n nie-indringende kunsmatige pols-oksimeter, insluitend maar nie beperk tot gedetailleerde ontwerp nie, sein analise, dier in-vivo en laboratorium in-vitro stelselontwerp vir die kalibrasie van die stelsel sowel as menslike kliniese bekragtiging en toetsprosedures. Al hierdie aspekte is vergelyk om die relatiewe akkuraatheid van die verskillende modelle te bepaal. Die toetse het gewys dat dit moontlik is om nie-indringend die gemengde suurstofversadiging in weefsel te bepaal. Sonder akkurate bekragtigingstegnieke en metodes om beide arteriële en vene bloedmonsters te versamel in ingeslote weefsel kan die stesel nie ten volle bekragtig word om beide arteriële- en veneversadigings in menslike in-vivo studie te bepaal nie. Hoewel die stelsel nie ’n akkurate meting van die aarsuurstof kon kry nie, is daar wel ’n akkurate meting geneem van die gemengde suurstofversadiging. Toekomstige navorsing kan lei tot die bekragtiging van die stelsel om beide arteriële en slagaar suurstofversadigings te meet.

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Dresher, Russell Paul. "Wearable Forehead Pulse Oximetry: Minimization of Motion and Pressure Artifacts." Link to electronic thesis, 2006. http://www.wpi.edu/Pubs/ETD/Available/etd-050306-104212/.

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Thesis (M.S.)--Worcester Polytechnic Institute.
Keywords: sensor attachment, wearable sensor, pulse oximetry, motion artifact, contact pressure, remote physiological monitoring. Includes bibliographical references (p.54-57).

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Books on the topic "Pulse oximetry"

1

Moyle, John T. B. Pulse oximetry. London: BMJ Publishing, 1994.

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2

Payne, James P., and J. W. Severinghaus, eds. Pulse Oximetry. London: Springer London, 1986. http://dx.doi.org/10.1007/978-1-4471-1423-9.

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3

Gas monitoring and pulse oximetry. Boston: Butterworth-Heinemann, 1990.

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4

McLaughlin, Carolee. Does arterial oxygen desaturation as measured by pulse oximetry occur during aspiration or penetration in acute dysphagic stroke patients?. [S.l: The Author], 2003.

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5

Catton, R. A. A pulse oximeter for potential use in fetal monitoring. Manchester: UMIST, 1995.

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6

Pulse Oximeter using ADuC842 Microcontroller: A monitoring device for measuring blood oxygen saturation and pulse rate. Saarbrücken: LAP LAMBERT Academic Publishing, 2012.

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Jiri, Kvasnicka, ed. A novel approach to optimization of paced AV delay using atrial contribution index. New York: Nova Science Publishers, 2008.

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8

Pulse Oximetry. Springer, 2011.

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9

P, Payne J., and Severinghaus John W, eds. Pulse oximetry. Berlin: Springer, 1986.

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10

Moyle, John T. B. Pulse Oximetry. Bmj Publishing Group, 1998.

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Book chapters on the topic "Pulse oximetry"

1

Severinghaus, J. W. "Historical Development of Oxygenation Monitoring." In Pulse Oximetry, 1–18. London: Springer London, 1986. http://dx.doi.org/10.1007/978-1-4471-1423-9_1.

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Holland, R. "Monitoring During Electroconvulsive Therapy." In Pulse Oximetry, 83–86. London: Springer London, 1986. http://dx.doi.org/10.1007/978-1-4471-1423-9_10.

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Miyasaka, K. "Use of Non-invasive Oximetry During the Induction of Anaesthesia in Children." In Pulse Oximetry, 95–100. London: Springer London, 1986. http://dx.doi.org/10.1007/978-1-4471-1423-9_11.

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Doherty, P. "The Advantages of Oximetry During Paediatric Anaesthesia." In Pulse Oximetry, 101–3. London: Springer London, 1986. http://dx.doi.org/10.1007/978-1-4471-1423-9_12.

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Landmesser, M., H. Pasterkamp, F. Tegtmeyer, and A. Fenner. "A Comparison of Transcutaneous Oxygen Tension with Oximetry in the Artificially Ventilated Newborn." In Pulse Oximetry, 111–15. London: Springer London, 1986. http://dx.doi.org/10.1007/978-1-4471-1423-9_13.

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Moyes, D. G. "Use of Cutaneous Oximeters in the Long-Term Ventilated Patient." In Pulse Oximetry, 117–18. London: Springer London, 1986. http://dx.doi.org/10.1007/978-1-4471-1423-9_14.

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Prakash, O. "Oximetry in the Weaning of the Ventilator Patient." In Pulse Oximetry, 119–24. London: Springer London, 1986. http://dx.doi.org/10.1007/978-1-4471-1423-9_15.

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8

Torri, G. "Oximetry During One Lung Anaesthesia." In Pulse Oximetry, 131–33. London: Springer London, 1986. http://dx.doi.org/10.1007/978-1-4471-1423-9_16.

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9

Thornton, J. A. "Use of Oximetry in Dental Out-patients Undergoing Controlled Sedation and General Anaesthesia." In Pulse Oximetry, 135–37. London: Springer London, 1986. http://dx.doi.org/10.1007/978-1-4471-1423-9_17.

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10

Canto, F. Munoz. "A Study of Arterial Oxygenation During Haemodialysis." In Pulse Oximetry, 139–41. London: Springer London, 1986. http://dx.doi.org/10.1007/978-1-4471-1423-9_18.

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Conference papers on the topic "Pulse oximetry"

1

Davies, M. "Intrapartum fetal pulse oximetry." In IEE Colloquium on Pulse Oximetry: A Critical Appraisal. IEE, 1996. http://dx.doi.org/10.1049/ic:19960778.

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2

Damianou, D. "The wavelength dependence of pulse oximetry." In IEE Colloquium on Pulse Oximetry: A Critical Appraisal. IEE, 1996. http://dx.doi.org/10.1049/ic:19960781.

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Amoore, J. N. "Pulse oximetry: an equipment management perspective." In IEE Colloquium on Pulse Oximetry: A Critical Appraisal. IEE, 1996. http://dx.doi.org/10.1049/ic:19960775.

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4

Laing, I. A. "Pulse oximetry in newborn intensive care." In IEE Colloquium on Pulse Oximetry: A Critical Appraisal. IEE, 1996. http://dx.doi.org/10.1049/ic:19960782.

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5

Havlik, Jan, and Jan Dvorak. "Laboratory kit for pulse oximetry." In 2010 3rd International Symposium on Applied Sciences in Biomedical and Communication Technologies (ISABEL 2010). IEEE, 2010. http://dx.doi.org/10.1109/isabel.2010.5702908.

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6

Moyle, J. T. B. "The use and abuse of pulse oximetry." In IEE Colloquium on Pulse Oximetry: A Critical Appraisal. IEE, 1996. http://dx.doi.org/10.1049/ic:19960776.

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7

Scott, V. A. "Contact lens oximetry: a valid concept?" In IEE Colloquium on Pulse Oximetry: A Critical Appraisal. IEE, 1996. http://dx.doi.org/10.1049/ic:19960777.

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8

McGraw, Daniel J. "How LED Wavelength Effects Accuracy in Pulse Oximetry." In Biomedical Optical Spectroscopy and Diagnostics. Washington, D.C.: Optica Publishing Group, 2006. http://dx.doi.org/10.1364/bosd.1996.ap7.

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9

O'Reilly, G. O. "Methods of assessment of pulse oximeters." In IEE Colloquium on Pulse Oximetry: A Critical Appraisal. IEE, 1996. http://dx.doi.org/10.1049/ic:19960780.

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10

Marble, D. R., and P. W. Cheung. "Mathematical model of transmission pulse oximetry." In Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE, 1988. http://dx.doi.org/10.1109/iembs.1988.94651.

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Reports on the topic "Pulse oximetry"

1

Mannheimer, P., and P. F. Nowak. Optimization of Reflectance Pulse Oximetry Sensors Final Report CRADA No. TC-485-93. Office of Scientific and Technical Information (OSTI), February 2018. http://dx.doi.org/10.2172/1424676.

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2

Sylvester, James C. Testing And Evaluation of the Ohmeda, Inc., Model 3800 Pulse Oximeter. Fort Belvoir, VA: Defense Technical Information Center, June 1998. http://dx.doi.org/10.21236/ada357735.

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3

Mendivil de la Ossa, José Alberto, and Lina María Gómez Duque. Exploración de los signos vitales. Ediciones Universidad Cooperativa de Colombia, December 2021. http://dx.doi.org/10.16925/gcgp.41.

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Abstract:

Este documento parte de los cursos Semiología del Paciente Sano y Semiología Clínica y se desarrolló con base en los textos guía de sus correspondientes syllabus: Manual Seidel de exploración física y Semiología médica y técnica exploratoria. Comprende los aspectos básicos de la semiotecnia y la interpretación de los hallazgos semiológicos del examen de los signos vitales, siguiendo este orden: 1) evaluación de la temperatura corporal, utilizando distintos tipos de termómetros, teniendo como referencia distintas zonas del cuerpo donde pueda ser medida la temperatura; 2) evaluación de la frecuencia respiratoria, a través de la observación o palpación, de acuerdo con el estado del paciente; 3) evaluación de la frecuencia cardiaca y el pulso, utilizando la palpación para el pulso en arterias de múltiples regiones del cuerpo, y acompañarla de la descripción de las características del pulso, así como la auscultación de la frecuencia cardiaca y correlación de la asociación entre frecuencia cardiaca y pulso si está presente; 4) evaluación de la presión arterial, revisando primeramente la condición del paciente para esta medición y luego aplicando correctamente el uso del tensiómetro y estetoscopio. Se inicia con la técnica palpatoria para completar la medición con la técnica auscultatoria; esto con el paciente en varias posiciones e igualmente en ambas extremidades superiores a nivel de antebrazo y muñeca; por último, 5) evaluación de la oximetría de pulso a través de un pulsioxímetro, cuantificando los valores e interpretando sus resultados, además de información adicional de relevancia como la onda de pulso y la temperatura o perfusión del sitio en el que se toma la medición.

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4

Lee, Jaime K. Tracking Pulse Oximeter Findings Before, During and After Titration of Mandibular Advancement Devices (MAD) for Patients With Mild to Moderate Obstructive Sleep Apnea (OSA). Fort Belvoir, VA: Defense Technical Information Center, May 2015. http://dx.doi.org/10.21236/ad1012726.

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5

Nellcor™ SpO₂ Pulse Oximetry. Touch Surgery Simulations, September 2021. http://dx.doi.org/10.18556/touchsurgery/2021.s0188.

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