Design and Evaluation of Permanent Magnet-based Probe Having Adjustable Magnetic Force for Bowel Retraction in Laparoscopic Surgery
Objective To develop a permanent magnet-based probe with adjustable magnetic field strength for retraction and controlled release of magnetised tissue during laparoscopic surgery. Method Probe development was conducted using a computer-aided design (Solidworks) and a finite element method package (COMSOL Multiphysics) for simulation and optimization. Two designs were exploited: Design 1 changes the… Continue Reading
Developing and Validating an iPad Based Laparoscopic Trainer
Objective of the technology:Access to facilities that allow one to develop their laparoscopic skills is very limited in the hospital environment and courses can be very expensive. We set out to build a cheap yet effective trainer to allow laparoscopic skill acquisition in the home or classroom environment based on using a tablet as a… Continue Reading
Development of an Intracavitary Perfusion Device for Laparoscopic Hepatectomy With Water-filled Endoscopic Surgery (wafles)
Objective of the deviceIn recent years, the number of hospitals that perform laparoscopic-assisted hepatectomy as a less-invasive approach is increasing with development and improvement in medical devices and the advancement of surgical techniques. However, because the liver has a very rich blood supply, it is important to intraoperatively determine the hepatic vascular distribution for safe… Continue Reading
Development of Metallic Reusable Port for Single Port Surgery: Possibility of Enhancement of Operability and Operation Cost Reduction
Single Port Surgery (SPS) has become used worldwide as a minimally invasive surgery method. However, many SPS ports are polymer-made disposable products, which could cause problems such as steep rise of medical cost or increase of management cost of medical waste, leading to environmental problems. We invented a metallic reusable port for SPS. Smooth fixing… Continue Reading
Development of Novel Electrospun Absorbable Polycaprolactone (PCL) Scaffolds for Hernia Repair Applications
INTRODUCTION: Permanent hernia repair materials rely on pro-fibrotic wound healing. As a result, repair sites are commonly composed of disorganized fibrotic tissue, resulting in greater risk of re-herniation. Electrospun scaffolds are a novel class of biomaterials which may provide a unique platform for the design of increasingly advanced soft tissue repair materials. These scaffolds are… Continue Reading
Duodenal Balloon Occlusion System for Hybrid-notes
(Objective of the device) Recently we introduced Hybrid-NOTES procedure for gastric GIST, which was combined procedure with laparoscopic surgery and flexible endoscope by surgeon and endscopists. During this procedure, we apply endoscope by CO2 gas insufflation but we encountered one problem, which is that CO2 gas flew into small intestine. It made worse laparoscopic view… Continue Reading
Early Experience With Peroral Endoscopic Myotomy (POEM)
OBJECTIVE: Peroral Endoscopic Myotomy (POEM) is an emerging new technique for treatment of achalasia. Here we describe the results of our early clinical experience with POEM. DESCRIPTION: Five patients (3 female, 2 male; age 30-73, mean 53) with manometry proven achalasia were enrolled in our IRB approved study and underwent POEM between June and October… Continue Reading
Electrical Stimulation Therapy (est) of the Lower Esophageal Sphincter (LES) – Emerging Treatment for Preventing GERD in Achalasia Patients Treated With Les Mytomy
Objective of the technology or device – EST of LES is an effective treatment for GERD (Am J Gastro 2011; 106: S6). Chronic LES-EST improves LES pressure, reduces esophageal acid exposure and improves symptoms in GERD patients. Our objective was to see if LES-EST can control GERD in a patient treated with Heller myotomy who… Continue Reading
Endolumenal Full-thickness Colon-wall Resection Using an Over-the-scope-clip: Three Techniques Compared in a Porcine Survival Study
ENDOLUMENAL FULL-THICKNESS COLON-WALL RESECTION USING AN OVER-THE-SCOPE-CLIP: THREE TECHNIQUES COMPARED IN A PORCINE SURVIVAL STUDY Rieder Erwin, Mesteri Ildiko, Bolton J. Emily, Mathews F. Connor, Timmel B. Gregory, Whiteford H. Mark, Swanström L. Lee Minimally Invasive Surgery Program, Legacy Health, Portland, ORMedical University of Vienna, Austria Objective: It is widely recognized that reliable endoscopic full-thickness… Continue Reading
Evaluation of New Operation for Morbid Obesity
Abstract Background: Bariatric surgery in particular malabsorptive procedures with the rapid weight loss, and anatomical changes in the gastrointestinal tract of patients leads to sever nutritional and metabolic complications .This work is aiming to avoid the nutritional and trace elements deficiency post bariatric malabsorptive procedures.Aim of the work is to avoid vitamins and trace elements… Continue Reading
Experienced Laparoscopic Surgeons Gain Significant Advantages Using 3d Passive Polarising Displays
Objective 3D surgical imaging systems provide stereoscopic depth cues that are lost in conventional 2D display systems. Recent improvements in stereoscopic projection technology using passive polarising displays have significantly improved novice surgeon performance during the acquisition of minimally invasive surgical skills. This study aims identify if passive polarising 3D displays provide similar benefits for expert… Continue Reading
Feasibility of Endoscopic Transumbilical Thoracic Surgical Lung Biopsy and Pericardial Window Creation
BACKGROUND To date there are no practical platforms for performing natural orifice transluminal endoscopic surgery (NOTES) in the thoracic cavity. Using the canine model, this study evaluates the feasibility of single incision transumbilical endoscopic surgery for thoracic exploration, lung biopsy, and pericardial window creation.METHODS Eight dogs were used for this study. A homemade metallic tube… Continue Reading
Flexdex™: A Minimally Invasive Surgical Tool With Enhanced Dexterity and Intuitive Control
Objective The goal of this project is to develop a low-cost minimally invasive surgery (MIS) device that provides wrist-like dexterity and intuitive control, which are necessary for complex MIS tasks such as suturing, knot-tying, and fine dissection. Such functionality is currently available only in multi-million dollar surgical robots. The proposed technology will broaden the adoption… Continue Reading
Fluorescent Augmentation of Bile Ducts\’ Visualization at Laparoscopic Cholecystectomy By Using Fluorescein and Ultraviolet Generating and Conducting Device
Objective and backgroundThe purpose of this new technique is to improve visualization of the extrahepatic bile ducts at laparoscopic cholecystectomy. The idea depends on the fact that intravenously-administered fluorescein is excreted by the liver and its concentration in bile reaches 500 times that of plasma. Ultraviolet A (UVA) excites fluorescein and causes it to emit… Continue Reading
Functional Results of Lower Esophageal Sphincter Mechanism Following Different Techniques Used for Cruroraphy for Laparoscopic Hiatal Hernia Repair ; Early Results of Randomized Controlled Trial
Aim:The prospective randomized trial was designed to evaluate the impact of different cruroraphy techniques used for laparoscopic repair of hiatal hernias. Material and Methods:Between January 2010-december 2011 , patients were randomly assigned for 3 groups having hiatal hernia> 2 cm. 24 h pH monitoring was performed using pHday2 Menfis,Italy and esophageal manometry was performed using… Continue Reading