Medicine
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This repository contains the published and unpublished research of the Faculty of Medicine by the staff members of the faculty
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Item Hardware interface for haptic feedback in laparoscopic surgery simulators(Institute of Electronics and Electrical Engineers(IEEE), 2014) Kannangara, S.M.; Ranasinghe, S.C.; Kumarage, S.K.; Nanayakkara, N.D.Minimally Invasive Surgeries (MIS) such as laparoscopic procedures are increasingly preferred over conventional surgeries due to many different advantages. Laparoscopic surgical procedures are very complex compared to open surgeries and require high level of experience and expertise. Hybrid surgery simulators available for training using physical phantoms are expensive and not readily available in majority of health care facilities around the world. Therefore, computer simulation or Virtual Reality (VR) is a better way to obtain skills for MIS. A VR simulator incorporated with haptic feedback provides a comprehensive training closer to real world experience. In this paper, we present a novel approach to incorporate force feedback to VR laparoscopic surgery training. The proposed interface incorporates force feedback in all three axes to provide three levels of force feedback. Computational models of abdomen organs were generated using the cryosection data of Visible Human Project of the National Library of Medicine, USA. The organ models were developed with three basic force categories: soft, mild and hard. A hardware interface is developed to provide the force feedback for the interaction of virtual tools with the said organ models while generating the tool navigation information for the VR simulator. © 2014 IEEE.Item Laparoscopic management of genital prolapse(Springer International, 2011) Mahran, M.A.; Herath, R.P.; Sayed, A.T.; Oligbo, N.INTRODUCTION: Genital prolapse is one of the most common indications for gynaecological surgery. Surgery is performed traditionally via abdominal, vaginal and laparoscopic approaches. METHODS: A MEDLINE computer search was performed to explore the recent evidence behind laparoscopic surgery for female pelvic organ prolapse. RESULTS: Advances in minimal access surgery have led to an increase in adoption of laparoscopic techniques. Current evidence supports the use of laparoscopy for sacrocolpopexy and colposuspension as an alternative to open surgery. However, the introduction of less invasive midurethral sling procedures for stress incontinence has reserved laparoscopic colposuspension for special indications. The scientific evidence regarding uterosacral suspension procedures and paravaginal and vaginal prolapse repairs are sparse. CONCLUSION: The current evidence supports the outcome of laparoscopic sacrocolpopexy as an alternative to open surgery. Further studies are required on the long-term efficiency in laparoscopic paravaginal repair and vaginal wall prolapse.Item Laparoscopic prosthesis fixation rectopexy for complete rectal prolapse(1994) Deen, K.I.No Abstract Available