Software Research Of Laparoscopic Procedure Training With Virtual Reality

Objective: In this research, used computer virtual reality modeling language, combined anatomic knowledge and laparoscopic surgical technique, we explore an exercise program on laparoscopic procedure with virtual reality. Methods: Modeling Used 3DS MAX, instruments and samples needed in this exercise program were developed. Setting Costomize >Unit Setup> Generic.. 3DS MAX is able to set up 3D model. Most of instruments and samples were set up with the loft and Boolean. 20 kind of catch modes, supplied by intellective and interactive 3D catching system, make catching precision and shortcut. After modeling the result of playing up were made better. MAX format were transformed to VRML format with Export, then interoperation can be performed. Samples tissue vessel were modeled using basic geometric body, such as spheroplast, cylinder. Then the human organs were added as physical characteristic of biosystem. When received an out-force, soft tissue transforms from geometric to physical model, according with deform rule and enhancing realism. Results: Instruments and samples needed in this exercise program were developed. All exercise programs proceed smoothly. If there were mistakes, the systems will give a message automatically. In navigation system training, user are trained to aim at samples in operation field . In grasping training, samples were put in sample bag smoothly with right or left hand. The samples grasped by forceps are transmitted between two hands or users.Clips and needles are taken out smoothly, without tissue damage. To apply clips, tissues incision is avoided. Vessels are sheared, using scissors is trained. Dissectors are used, matching foot power switch. Coordination of eyes, hands, foots, brain is trained. Conclusions: The combination between developed technology of computer and minimally incision surgery will accelerate the development of medical science. Software on exercise program on laparoscopic procedure with virtual reality are developed successfully using computer virtual reality modeling language. In navigation system training, user aims at samples in operation field successfully. In grasping training, samples were put in sample bag smoothly with right or left hand. Clips and needles are taken out smoothly, without tissue damage. Applying clips, tissues incision are avoided. Vessels are sheared, dissectors are used, matching foot power switch. Coordination of eyes, hands, foots, brain is trained. Using this software system, many disadvantages in traditional laparoscopic training methods are avoided, such as the simple laparoscopic box has worse training effect, total laparoscopic instruments are expensive, patients have high risk. According literature retrieval, this research is the fist one in our nation. In addition, we will have 5-7 patents and Intellectual property rights. After industrialization, there will be much more social effects and economic returns.