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Relevant bibliographies by topics / Surgical suction

Academic literature on the topic 'Surgical suction'

Author: Grafiati

Published: 10 December 2022

Last updated: 28 January 2023

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Journal articles on the topic "Surgical suction"

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Gonzalez Edery, Eduardo, Ximena Rios, Gerardo Vargas, Laura Arzuza, and Juan Reatiga Aguilar. "Suction Tip Colonization during Orthopedic Surgery: A Review." Journal of Orthopedics and Orthopedic Surgery 1, no. 3 (October 19, 2020): 1–4. http://dx.doi.org/10.29245/2767-5130/2020/3.1114.

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Surgical site infections are clinically and epidemiologically critical in orthopedic surgery, as they lead to several complications affecting the quality of life of patients. Contamination may occur during the surgery, through instruments directly inserted into the wound acting as reservoirs for microorganisms. This study aimed to review the literature on suction tip colonization during orthopedic surgery, with an aim toward setting guidelines for its management during surgical procedures. Suction tips can be colonized primarily in two ways. The first is through direct contact with a surgical wound or poor handling by surgical staff and the second is through continuous airflow through the tip of the suction. Colonization rate between studies has decreased in the last years reporting in recent papers a 7.3% suction tips colonization rates in clean orthopedic. The most common germs isolated are S. epidermidis, S. aureus and E. cloacae. Suction tip colonization has a direct relationship with the duration of the surgical procedure, with a higher rate of colonization with longer surgeries. Multiple strategies have been proposed to reduce the risk of colonization of the suction tips used during a surgical procedure including systematically changing suction cannula after 1 hour of surgery or strategies to reduce active suction time. It is unclear if suction tip colonization is directly related to surgical site infection rates. Further studies are needed to corelate infection and colonization of the suction canula.

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VanCleave, Andrea M., James E. Jones, James D. McGlothlin, Mark A. Saxen, Brian J. Sanders, and LaQuia A. Vinson. "The Effect of Intraoral Suction on Oxygen-Enriched Surgical Environments: A Mechanism for Reducing the Risk of Surgical Fires." Anesthesia Progress 61, no. 4 (December 1, 2014): 155–61. http://dx.doi.org/10.2344/0003-3006-61.4.155.

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Abstract In this study, a mechanical model was applied in order to replicate potential surgical fire conditions in an oxygen-enriched environment with and without high-volume suction typical for dental surgical applications. During 41 trials, 3 combustion events were measured: an audible pop, a visible flash of light, and full ignition. In at least 11 of 21 trials without suction, all 3 conditions were observed, sometimes with an extent of fire that required early termination of the experimental trial. By contrast, in 18 of 20 with-suction trials, ignition did not occur at all, and in the 2 cases where ignition did occur, the fire was qualitatively a much smaller, candle-like flame. Statistically comparing these 3 combustion events in the no-suction versus with-suction trials, ignition (P = .0005), audible pop (P = .0211), and flash (P = .0092) were all significantly more likely in the no-suction condition. These results suggest a possible significant and new element to be added to existing surgical fire safety protocols toward making surgical fires the “never-events” they should be.

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Owens, David, Mario Jaramillo, and Michael Saunders. "Suction diathermy adenoid ablation." Journal of Laryngology & Otology 119, no. 1 (January 2005): 34–35. http://dx.doi.org/10.1258/0022215053222743.

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Adenoidectomy Is A Surgical Procedure Frequently Carried Out In Otolaryngological Practice, Traditionally Undertaken Blindly With Curettage Using An Adenotome Following Palpation Of The Adenoid Bed. While A Number Of Alternative Methods Have Been Described For Surgical Removal Of The Adenoid Pad (Power-Assisted/Microdebrider, Transnasal Adenoid Ablation, Suction Coagulation And Liquefaction/Aspiration) None Has Become The Definitive Procedure. Suction Diathermy Adenoidectomy Has Been Known And Used For Some Time; It Has Gained In Popularity Over Recent Years And Is Established As An Alternative To Conventional Curettage, Particularly In Children.We Describe Several Techniques Which Improve The View Of The Surgical Field While Performing Suction Diathermy Adenoid Ablation.

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Eulufi, Alex, Guillermo Israel, Hector Vergara, Wilfredo Calderon, and Sebastian Eulufi. "Hand Surgical Assistance: Light and Suction." Annals of Plastic Surgery 55, no. 5 (November 2005): 555–56. http://dx.doi.org/10.1097/01.sap.0000184559.04464.03.

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Sakatani, Kaoru, and Huancong Zuo. "Continuous suction surgical cottonoid for microneurosurgery." Neurological Research 20, no. 6 (September 1998): 564–66. http://dx.doi.org/10.1080/01616412.1998.11740565.

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Ousterhout, Douglas K. "Combined Suction-assisted Lipectomy, Surgical Lipectomy, and Surgical Abdominoplasty." Annals of Plastic Surgery 23, no. 4 (October 1989): 376. http://dx.doi.org/10.1097/00000637-198910000-00023.

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Ousterhout, Douglas K. "Combined Suction-assisted Lipectomy, Surgical Lipectomy, and Surgical Abdominoplasty." Annals of Plastic Surgery 24, no. 2 (February 1990): 126–33. http://dx.doi.org/10.1097/00000637-199002000-00004.

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Praneeth, Kokkula, Ashish Aggarwal, Sunil Kumar Gupta, and Navneet Singla. "Necessity is the mother of invention: Technical note on the use of self-designed low-cost continuous sump suction for use in microvascular anastomosis." Surgical Neurology International 10 (November 8, 2019): 216. http://dx.doi.org/10.25259/sni_170_2019.

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Background: Technical advances in microneurosurgery facilitated the continuous evolution of surgery. In many developing countries surgeons face difficulties rendering high quality services due to resource constraints. The continuous dry surgical field is essential for performing microvascular anastomosis. Commercially available sump suctions are costly and beyond the reach of most surgeons in resource-constrained countries. Methods: We designed a suction system which functions on the principles of capillary action and sump effect. Results: The improvised sump suction was used successfully in our patients for micro vascular surgery, giving us a continuous dry field and removing the chance of error by an assistant. Conclusion: The suction system was made with the use of easily available low-cost components, and worked well to the satisfaction of the surgeon.

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&NA;. "Suction lipoplasty." Plastic Surgical Nursing 9, no. 3 (1989): 138. http://dx.doi.org/10.1097/00006527-198900930-00017.

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Stiehl, M.D., James. "Mechanical Performance of a Self-Unplugging Surgical Suction Instrument: A Randomized Controlled Trial." Reconstructive Review 4, no. 1 (March 31, 2014): 18–22. http://dx.doi.org/10.15438/rr.v4i1.54.

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Introduction: Obstruction of the surgical suction instrument is a common problem in orthopaedic surgery. Previous attempts have tried to address this problem. The ‘Super Sucker’ has a screen compartment that can be unclogged upon disassembly. The Yankauer sucker has small holes in its tip that strain larger bits of debris. The aim of this study is to clinically evaluate a new gas-actuated suction instrument in which a special screen at its tip is cleared, as needed, by a rapid burst of pressurized carbon dioxide gas.Methods: This IRB-approved, prospective, randomized study compared a gas-actuated suction instrument with the Super Sucker and Yankauer in 70 consecutive primary total joint arthroplasty cases. Outcome measures included: incidence of complete suction loss due to suction instrument obstruction; time lost while unplugging the suction instrument; number of additional suction instruments needed; and a subjective surgeon-assessed performance score (1 to 5, with 5 being most favorable) for type of suction instrument. Results: There were no cases in which the gas-actuated suction instrument could not be rapidly cleared of debris. The Super Sucker completely plugged in 71% of cases, requiring 67 minutes total to unplug (3.9 minutes per case, range 0 to 12 minutes). In four cases, replacement Super Suckers were required to finish the case. The Yankauer completely plugged in 47% of cases, requiring 52 minutes total to unplug (2.8 minutes per case, range 0 to 10 minutes). In three cases, replacement Yankauers were required to finish the case. The average performance score was 2.7 for the Super Sucker, 3.6 for the Yankauer, and 5 for the gas-actuated suction instrument on a scale of 1 to 5, with 5 being most favorable.Discussion: This study evaluated a suction instrument in which a screen tip prevents obstruction, and a burst of pressurized carbon dioxide gas clears debris from the tip. The new suction instrument was successful in 100% of cases, with considerably less time lost compared to the other suction instruments. The gas-actuated suction tool actively and rapidly cleared obstructive debris with minimal disruption to the surgical flow. Recent clinical experience has shown the gas-actuated suction tool to be particularly enabling in the settings of tourniquet-free total knee replacement, small incision total hip replacement, bipolar hemiarthroplasty, and revision total hip replacement.Keywords: suction, total joint arthroplasty, tourniquet-less, carbon dioxide gas

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Books on the topic "Surgical suction"

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Frost & Sullivan., ed. U.S. medical and dental suction and irrigation equipment markets. Mountain View, Calif: Frost & Sullivan, 1995.

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Frost & Sullivan., ed. Medical and dental suction and irrigation equipment markets: Environmental and infection control issues encourage innovation. Mountain View, CA: Frost & Sullivan, Inc., 1993.

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Saddler, John. Gynaecological surgery. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780198719410.003.0025.

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This chapter discusses the anaesthetic management of gynaecological surgery. It begins with a discussion of general principles. Surgical topics covered include hysteroscopic procedures, evacuation of retained products of conception, suction termination of pregnancy, laparoscopy, sterilization, tension-free vaginal tape, hysterectomy (vaginal and abdominal), and ectopic pregnancy. It concludes with a series of vignettes about minor gynaecological procedures.

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Book chapters on the topic "Surgical suction"

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Wells, Francis C., and Aman S. Coonar. "Closure of Post-pneumonectomy Space and Bronchopleural Fistula: Suction Pump and Flap Closure." In Thoracic Surgical Techniques, 185. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-66270-1_43.

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"Suction dilatation and evacuation." In Surgical Transcriptions and Pearls in Obstetrics and Gynecology, Second Edition, 185. CRC Press, 2006. http://dx.doi.org/10.1201/b13952-40.

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Rivlin, Katherine. "A 35-Year-Old G3P2 Woman with Persistent Bleeding after Suction D&C." In Surgical Gynecology, 85–87. Cambridge University Press, 2021. http://dx.doi.org/10.1017/9781009003674.030.

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Isley, Michelle M. "A 30-Year-Old G1 Woman with Suspected Uterine Perforation during Suction Dilation and Curettage." In Surgical Gynecology, 74–77. Cambridge University Press, 2021. http://dx.doi.org/10.1017/9781009003674.027.

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Bag, Sandip. "Overview of Surgical Instruments for the Operation Theatre." In Advances in Medical Technologies and Clinical Practice, 23–56. IGI Global, 2018. http://dx.doi.org/10.4018/978-1-5225-4969-7.ch002.

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There are several classes of surgical instruments such as graspers, clamps, and occluders for blood vessels and other organs; retractors used to spread open skin, ribs, and other tissue; distractors, positioners, and stereotactic devices; mechanical cutters (scalpels, lancets, surgical scissors, etc.); dilators and specula for access to narrow passages or incisions; suction tips and tubes for removal of bodily fluids; sealing devices such as surgical staplers; irrigation and injection needles, tips, and tubes for introducing fluid; powered devices, such as drills, dermatomes; scopes and probes, including fiber optic endoscopes and tactile probes; carriers and appliers for optical, electronic, and mechanical devices; ultrasound tissue disruptors, cryotomes, and cutting laser guides; measurement devices, such as rulers and calipers; and many more. This chapter overviews surgical instruments for the operation theatre.

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Todd, Claire. "Gynaecological surgery." In Oxford Handbook of Anaesthesia, 745–54. Oxford University Press, 2021. http://dx.doi.org/10.1093/med/9780198853053.003.0030.

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This chapter discusses the anaesthetic management of gynaecological surgery. It begins with a discussion of general principles. Surgical topics covered include hysteroscopic procedures; evacuation of retained products of conception (ERPC); suction termination of pregnancy (STOP); laparoscopy; sterilisation; hysterectomy (vaginal and abdominal); and ectopic pregnancy. It includes pertinent anaesthetic features for a series of additional miscellaneous gynaecological procedures.

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"Surgical Techniques: Vaginal 5.3.2.10 Suction Curettage in Abnormal Early Pregnancy." In Atlas of Gynecologic Surgery, edited by Diethelm Wallwiener and Sven Becker. Stuttgart: Georg Thieme Verlag, 2014. http://dx.doi.org/10.1055/b-0034-91290.

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Nouri, Keyvan, Mohamed Lotfy Elsaie, and Voraphol Vejjabhinanta. "Physical Stressors for Fat Reduction: Cold, Heat, and Suction." In Procedures in Cosmetic Dermatology Series: Non-Surgical Skin Tightening and Lifting, 139–45. Elsevier, 2009. http://dx.doi.org/10.1016/b978-1-4160-5960-8.50018-1.

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Juma, Ali, Jamil Hayek, and Simon Davies. "Body Contouring and VASER Technology, the Fourth Dimension." In Body Contouring - Surgical Procedures and New Technologies [Working Title]. IntechOpen, 2023. http://dx.doi.org/10.5772/intechopen.108935.

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Body contouring surgery encompasses several facets. However, it is only in the last 15 years that body-sculpting technology has been incorporated in body contouring on a larger scale. This has added further refinements to the aesthetic outcomes of body contouring surgery. Advances in VASER technology meant it has become synonymous with the art of lipo-sculpture, body sculpting and body contouring. When performing body contouring, the first step in liposculpturing the tissues is to emulsify the fat using ultrasound resonance. The emulsified fat is then aspirated with a power-assisted suction device, and in appropriately selected patients, surgically excising the skin excess to achieve the desired results. It is important not to forget the other added bonuses of VASER technology, which includes reduced surgeon’s fatigue, enhanced skin retraction and reduced downtime; all being achieved at a high safety margin. Body contouring does not stop at emulsifying fat and aspirating it. Fat transfer in the selected patients has become an integral part of body contouring surgery. This includes patients wishing breast augmentation and buttock augmentation utilising their own fat, thereby reducing any concerns they may have with using silicone-based implants, whilst achieving cosmetically pleasing long-lasting outcomes. Surgical excision where technology cannot overcome skin excess and laxity adds to the aesthetic outcomes in selected cases, thus bringing to fruition the hybrid surgical approach popularised in the twenty-first century. One example of many is incorporating VASER lipo-sculpture with abdominoplasty.

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Li, Hang Wun Raymond, and Pak Chung Ho. "Termination of pregnancy." In Oxford Textbook of Obstetrics and Gynaecology, edited by Sabaratnam Arulkumaran, William Ledger, Lynette Denny, and Stergios Doumouchtsis, 678–83. Oxford University Press, 2020. http://dx.doi.org/10.1093/med/9780198766360.003.0054.

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When an unintended pregnancy occurs secondary to contraceptive failure, the availability of safe means of pregnancy termination is important to minimize morbidities and mortalities associated with the abortion procedure. Where allowed within the legal constraints, access to safe abortion should be facilitated without prejudice and stigmatization. The healthcare providers should offer proper pre-abortion counselling and assessment, and choice of the abortion method should be made based on the gestational age and local expertise. Both medical and surgical methods are available for the effective termination of first- and second-trimester pregnancies. Most recommended regimens for medical abortion involve the use of misoprostol with or without mifepristone, whereas surgical abortions generally employ suction evacuation of the uterus. Providers of abortion service should be familiarized with the evidence-based guidelines and protocols published by various authorities on the abortion procedures and postabortion care, as well as means to prevent complications.

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Conference papers on the topic "Surgical suction"

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Mucha, Asja, Jan Henk Dubbink, Stefan Persaud, Adithyan Senthil Athiban, and Jan Carel Diehl. "Improving the Use of Surgical Suction Pumps in Sierra Leone." In 2021 IEEE Global Humanitarian Technology Conference (GHTC). IEEE, 2021. http://dx.doi.org/10.1109/ghtc53159.2021.9612501.

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Koyama, Toshio, Takeshi Yoneyama, Mitsutoshi Nakada, and Tetsuyou Watanabe. "Incompressible liquid based force sensible silicone retractor attachable to surgical suction instruments." In 2016 IEEE International Conference on Advanced Intelligent Mechatronics (AIM). IEEE, 2016. http://dx.doi.org/10.1109/aim.2016.7576966.

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Koyama, Toshio, Takanobu Iwai, Takeshi Yoneyama, Hiroyuki Kagawa, Yutaka Hayashi, Mitsutoshi Nakada, and Tetsuyou Watanabe. "Silicone retractor with embedded force-sensing function for attachment to surgical suction pipes." In 2015 IEEE International Conference on Advanced Intelligent Mechatronics (AIM). IEEE, 2015. http://dx.doi.org/10.1109/aim.2015.7222523.

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Huang, Jingbin, Fei Liu, Florian Richter, and Michael C. Yip. "Model-Predictive Control of Blood Suction for Surgical Hemostasis using Differentiable Fluid Simulations." In 2021 IEEE International Conference on Robotics and Automation (ICRA). IEEE, 2021. http://dx.doi.org/10.1109/icra48506.2021.9561624.

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Battinelli, Emily, Kyra Holmquest, Julia Musso, Pritpal Singh, and Edmond Dougherty. "Low Cost, Low Power 12VDC Surgical Suction Device for Use in Developing Countries." In 2012 IEEE Global Humanitarian Technology Conference (GHTC). IEEE, 2012. http://dx.doi.org/10.1109/ghtc.2012.51.

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Lima, Juliana Ferreira de, Bruna Anderson, Antônio Carlos Toshihiro Nisida, Fabiano Cataldi Engel, and Luiz Henrique Gebrim. "THORACIC DUCT INJURY AFTER MASTECTOMY - CASE REPORT AND LITERATURE REVIEW." In Scientifc papers of XXIII Brazilian Breast Congress - 2021. Mastology, 2021. http://dx.doi.org/10.29289/259453942021v31s1073.

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Introduction: In adults, the thoracic duct carries about four liters of lymph per day, and its injury can lead to rapid accumulation in the pleural cavity, causing acute and chronic changes in lung dynamics. Thoracic duct injuries are uncommon and occur during surgical procedures in the thoracic region and trauma, such as esophagectomy, mediastinal and pleuro-pulmonary surgical procedures. Surgical injuries have been described after almost all types of thoracic surgical procedures, especially those performed in the upper left thoracic strait. The clinical diagnosis is based most often on the high output of the introduced chest drain, accompanied by a milky aspect. In addition, computed tomography, lymphoscintigraphy and lymphanangiography are possible methods for diagnosis. Clinical series on duct injuries after thoracic surgery report that in approximately 25% to 50% of cases spontaneous closure of the fistula occurs with conservative measures, after the introduction of parenteral nutrition or enteral diet with medium chain triglycerides. The other cases needed clinical and surgical treatment. Operative treatment consists of performing videothoracoscopy or right thoracotomy with identification of the lymphatic duct, followed by ligation. Case report: A 48-year-old woman, born in Santana do Parnaíba, state of São Paulo, with a diagnosis of breast cancer on the left, histological type of invasive breast carcinoma Luminal B, who underwent a modified radical mastectomy (Madden technique) on the left with immediate breast reconstruction. In the intraoperative period, important involvement of the left axillary lymph nodes was evidenced, which may have distorted lymphatic vessels and ducts. It evolved in the late postoperative period with high milky drainage in a suction drain in the left axillary region. Then, a hypothesis of thoracic duct injury was raised as a post-surgical complication. Biochemical analysis of milky secretion showed a high concentration of triglycerides and cytology describes the presence of proteinaceous material and macrophages. A conservative approach was adopted with adjustment of a hyperproteic, hypoglycidic and rich in medium chain triglyceride parenteral diet. The patient underwent lymphoscintigraphy, twenty days after the diagnostic hypothesis, but the fistula was not detected. Progressed with a decrease in the flow gradually until the drain was removed and she was discharged from the hospital in good condition. At the moment, the patient is undergoing adjuvant treatment for breast cancer.

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Moreira, João Victor Aguiar, Isabela Maria Bernardes Goulart, Diogo Fernandes dos Santos, Isabella Sabião Borges, Pedro Otávio Rego de Aguiar, Thaciany Soares Ferreira, Leonardo Peixoto Garcia, et al. "Bilateral diaphragmatic eventration and alveolar hypoventilation in congenital myotonic dystrophy." In XIII Congresso Paulista de Neurologia. Zeppelini Editorial e Comunicação, 2021. http://dx.doi.org/10.5327/1516-3180.533.

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Context: Congenital myotonic dystrophy (CMD) is a subtype of type 1 myotonic dystrophy presented in the neonatal period associated with a 16–40% mortality rate. CMD cause significant morbidity and mortality and often require intensive intervention at birth because of hypotonia, respiratory failure and feeding difficulties. It can cause respiratory problems including ineffective cough, recurrent pulmonary infections, orthopnea, dyspnea, poor sleep, apnea and snoring. However, there are few descriptions about diaphragmatic impairment in CMD. We present a baby who had bilateral diaphragmatic eventration associated with CMD. Case report: A term outborn female baby with normal birth weight, delivered by cesarean presenting hypotonia and breathing difficulty since birth. There was no history of meconium aspiration syndrome and aspiration pneumonia. Neurological examination showed a severe hypotonia, eyelid ptosis, oral motor weakness and suction inability, without contractures. Chest X-rays confirmed the bilateral diaphragmatic paralysis. Electroneuromyography confirmed a marked myopathic involvement with frequent myotonic discharges. The mother presented clinical and electrical myotonic phenomena. The baby started mechanical ventilation as was not maintaining saturation on head box oxygen. After surgical repair the baby started on non-invasive respiratory support with improvement of ventilatory conditions. Conclusion: Diaphragmatic eventration is a congenital condition where the muscle maintains its normal costal attachments but is significantly elevated with limited motility. Clinical manifestations vary to life-threatening respiratory distress. Bilateral congenital diaphragmatic eventration is rarer and has more guarded prognosis. Early diaphragmatic plication enhances weaning process and may prevent or minimize the morbidity. Infants with CMD should be monitored for diaphragmatic impairment.

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Salazar-Salgado, Sara, and Elizabeth Rendón-Vélez. "Displacement of the Residual Limb Within Transfemoral Sockets: A Literature Review." In ASME 2020 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/imece2020-23416.

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Abstract According to the World Health Organization and the International Society for Prosthetics and Orthotics, between 0.5 to 0.8 percent of the global population has suffered limb amputations. In the last years, Colombia, Angola, Afghanistan, and Chechenia are the countries that have held the first places with the highest amount of landmine victims. In Colombia, this weapon has left more than 10.000 affected people, many of which have suffered traumatic lower limb amputation To recover some of the lost function, amputees are generally prescribed with a prosthesis. However, the adaptation of the user with this element depends on the comfort felt when using it and consequently, on the fit between the socket and the residual limb. The fit between these two elements is highly influenced by the relative motion between them (i.e. displacement, slip). Both excess of displacement or complete absence, have several negative consequences for the amputee. Thus, measuring displacement could be an important indicator of the quality of the socket and the suspension system, and could provide critical information to improve surgical interventions, the prescription of prosthetic elements and the design and development of new prosthetic components. Several authors have investigated this topic; however, the studies have been mostly conducted on transtibial amputees. Therefore, this review aims to summarize the gathered information about the displacement between the socket and residual limb in transfemoral amputees. A computer-aided systematic literature search was performed by two independent reviewers using three databases. The selected papers were evaluated with regards to: sample characteristics, displacement measurement instrument, measured activity, displacement axis, surfaces in contact, type of socket and type of suspension system used. Most of the studies were performed on less than five individuals with mature residual limbs and trauma caused amputation. The most common aspects of displacement were: imaging techniques (measurement instrument), gait (measured activity), vertical direction (displacement axis), bone/socket (surfaces in contact), quadrilateral (type of socket) and suction-based (suspension system). The optimal range of motion is still unknown for transfemoral amputees. A marker-based optical tracking system is promising for research purposes, while electronic sensors would be optimal for clinical use. Volume change may be an indirect and, more straightforward option to measure displacement. Further research is needed to determine the effect of using a modified socket, to find a way to measure relative motion inside the socket using marker-based optical tracking systems and to define the influence of subject-specific characteristics in the amount of displacement. A better understanding of what happens inside the socket helps to optimize prosthetic designs and to improve the amputee’s quality of life.

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Pedrigi, Ryan M., and Jay D. Humphrey. "Biomechanics of the Human Anterior Lens Capsule." In ASME 2008 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2008. http://dx.doi.org/10.1115/sbc2008-192073.

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The primary function of the lens of the eye, termed accommodation, is to precisely focus light onto the retina by changing curvature and corresponding refractive power. Investigators have long sought to understand the mechanism of accommodation in terms of interactions of the constituent tissues, which recently has been aided by biomechanical modeling. Such models depend heavily on accurate measurements of tissue mechanical properties and seek to predict stresses and strains. A critical component of the accommodative apparatus is the lens capsule, a bag-like membrane that encapsulates the lens nucleus and cortex and mediates tractions imposed onto this structure by the ciliary body. In addition to this physiologic process during normalcy, the lens capsule also plays a fundamental role in cataract surgery; a procedure that involves three basic steps: a quarter of the anterior lens capsule is removed via the introduction of a continuous circular capsulorhexis (CCC), the lens is broken up and suctioned out, and an artificial intraocular lens (IOL) is placed within the remnant capsular bag. Although novel IOL designs have decreased post-surgical complications, they currently lack the important feature of accommodation. Therefore, mechanical analysis of the lens capsule will allow for an understanding of its interaction with an implant that may further assist in the design of future accommodating IOLs (AIOLs). Here, we report a novel experimental approach to study in situ the regional, multiaxial mechanical behavior of both normal and diabetic human anterior lens capsules. Furthermore, we use these data to calculate material parameters in a nonlinear stress-strain relation via a custom sub-domain inverse finite element method (FEM). These parameters are then used to predict capsular stresses in response to imposed loads using a forward FEM model.

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