This article introduces a new biomedical / open surgical instrument to assist surgeon in applying surgical clips to patient’s body tissue and blood vessel during surgical processes. The new clip delivery system is designed to better the clip’s distal advance through internal clip channel, jaw guiding track, and all other transition areas to keep surgical clip from accidental shooting out during clip’s distal move into jaws. Currently the clip distal move in normal surgical instrument is usually driven by compression springs and some complains of clip accidental drop-off were recorded in surgical procedures. Because higher request of dimensional tolerance and better component surface quality are needed in case the compression springs are used as driven force, a little dimensional devia-tion or less qualified part surface produced from manufacturing processes will potentially cause surgical clip device malfunction or misfiring of the clips. It is clearly known that the jaws can seriously sever or damage patient’s blood ves-sel or body tissue if there is no clip inside the jaws due to accidental clip drop-off, when surgeons close instrument handles. The improved internal system design in this new open surgical instrument can prevent clip from accidental drop-off because of well guided and controlled clip distal move through internal clip channel and track. Besides the operational force to fully form clip is lower than existing surgical clip devices due to better mechanical advantage in this new instrument design. In addition to the above, manufacturing and product cost can be decreased since lower requirement of dimensional tolerance and surface quality of instrumental parts is allowed in this new surgical instrument design. This new instrumental prototype is build upon the analysis of computer aided modeling and simulation to prove its good mechanical advantage, feasible function, reliable performance. The preliminary results of instrument fir-ing force from both computer aided modeling and prototype testing are very close to each other, and preliminary prototype testing shows no accidental clip drop-off in this new biomedical / surgical clip instrument.
展开▼
机译:Citizen Centric Service in the Australian Department of Human Services: The Department's Experience in Engaging the Community in Co-design of Government Service Delivery and Developments in E-Government Services (澳大利亚人类服务部以公民为中心的服务:该部门在促进群体参与协同设计政府服务提供和发展在电子政府的经验)
机译:Overpressure Protection of a Pressure Vessel by System Design through the Application of ASME VIII UG-140 in lieu of a Relief device by an Appropriate Choice of MAWP and/or by Safety Instrumented System
机译:The Rise of the Chinese Concerto: A Look into the Developments of Chinese Traditional Instrument Concerti with Western Orchestra =中国协奏曲文化的兴起:对于中国传统乐器与西洋交响乐团合作的协奏曲的研究