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
Laparoscopic Bile Duct Exploration Using Video-gastroscope
Background: Laparoscopic bile duct exploration (LBDE) is now a standard procedure in many centers for the management of ductal stones in calcular GB patients. The lowest incidence of retained CBD stone after duct exploration is achieved only with the use of operative choledochoscopy. Available choledochoscopes are so fragile, with fine channels and minimal control of… Continue Reading
Through-the-scope Balloon Cryoablation Device for Treating Barrett’s Esophagus
Objective: Ablation of dysplastic Barrett’s has become the mainstay of therapy in many centers. The most common ablation method used is radiofrequency energy, and although effective, it has a number of drawbacks. One of the primary drawbacks is that it cannot be deployed through the endoscope, but is either attached to the endoscope or placed… Continue Reading
The Impact of Use of a Novel Suture ‘v-loc’ in Roux En Y Gastric Bypass (rygb) in a Recognised Bariatric Centre of Excellence.
Background- Various sutures are employed during anastomotic closure in a RYGB, in an attempt to minimise anastomotic leak which is a major complication, and its consequences on the morbidity and mortality. There remains a concern regarding the efficacy of the sutures. V-loc, an absorbable, uni-directional, secure, barbed, knotless suture has been used in our institution… Continue Reading
Hepatic Inflow Restriction Device
During partial hepatectomy, most commonly performed for the treatment of liver tumors, blood loss is a significant patient risk, as the liver is a highly vascular organ with blood flow rates on the order of 1500 ml/min., which is approximately 25% of total cardiac output. Excessive liver bed bleeding can also obscure the operative field,… Continue Reading
A Novel Flexible Over-tube for Advanced Endoscopic Intervention Under Stabilized Visualization With Adjustable Tissue Traction
Background: Advanced endoscopic interventions such as endoscopic submucosal dissection (ESD), full thickness resection, and ultimately NOTES, have yet to be clinically disseminated, mainly due to technical challenges in optimizing endoscopic visualization and tissue traction. A simple over-tube, compatible with current flexible GI endoscopes and instruments, has been newly developed to improve visualization and tissue traction.The… 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
Usefulness of Laparoscopic Color Doppler Sonography in Identifying Vascular Structures During Laparoscopic Operation of Colorectal Cancer
Introduction: In proctectomy for rectal cancer, to identify the vascularities of the intestine, structures of inferior mesenteric artery (IMA), left colic artery (LCA) and sigmoid artery (SA), it is important to perform safe and curative operations. However, it is difficult to know laparosocopically, where the point of LCA branching off from IMA is and whether… Continue Reading
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
Multi-institutional Experience of Minimally Invasive Inguinal Lymph Node Dissection (milnd) for Melanoma
Objective: The most frequent site of spread of melanoma is to the regional lymph nodes. Operative intervention remains the mainstay of treatment and necessary for cure. Unfortunately, lymph node dissection is associated with significant morbidity. Three prospective trials report complications in over 50% of patients undergoing inguinal lymph node dissection; these include wound infections, wound… Continue Reading
Needle for Abdominal Wall Closure
Background: Laparoscopic surgery is increasingly present in our midst. There are some complications related to the use of portal namely bleeding, internal hernia, pain and bruising of the wall. The closing of the gates in our view it is important to minimize complications on bariatric surgery . There are on market tools that greatly facilitates… Continue Reading
Measuring tissue oximetry as a method for evaluating acute tissue response to compression
INTRODUCTION Tissue percent oxygenation levels are affected by the amount of compression applied, the purpose of this study was to develop a method to evaluate the change in tissue oxygen saturation level during compression and uncompression. During surgery, tissue is compressed for various reasons, including grasping, manipulation and stapling. Excessive compression may irreparably damage tissue… Continue Reading
Sleeve Tube: Novel Tool to Standardize Laparoscopic Sleeve Gastrectomy (lsg)
Objective: Laparoscopic sleeve gastrectomy [LSG] has been increasingly accepted as a definitive weight loss surgery. LSG is less complex than Roux En Y Gastric bypass with lesser complication profile but comparable outcome. Complications arising out of LSG are results of technical failures: misidentification of vital surgical landmarks, use of improper staple heights, inadvertent traction, unguided… Continue Reading
The Development of a Virtual Reality Colonoscopy Training Curriculum
The success of colonoscopy in colorectal cancer (CRC) prevention is dependent on operator competence in the detection and removal of adenomatous polyps. However, studies have shown substantial variability in polyp detection rates. Changes in clinical practice have led to a reduction in training opportunities; thus alternative methods of teaching have been developed. The advert of… Continue Reading
Transvaginal Insertion of Internal Retractor for Hybrid Notes (natural Orifice Translumenal Endoscopic Surgery) Transvaginal Cholecystectomy.
Introduction:Since the introduction of hybrid NOTES transvaginal (TV) cholecystectomy, retraction of the gallbladder has been described with magnets, percutaneos sutures and flexible long grasper. The need for adequate instrumentation gives room for improvement and development of new instrumentation. Here in we describe a novel technique for internal retraction of the gallbladder. Methods:Non-survival Hybrid Transvaginal NOTES… Continue Reading