| The intelligent robot gradually comes into the life of people to improve the production efficiency and improve the way of people live, involved in all aspects. In medical treatment,surgical robot is applied to the actual clinical, to improve the efficiency of the operation. It is quite clear that the man-machine combination significantly improves medical technology.But robots lack mechanical perception and force feedback system. It can not accurately obtain the contact force between the biological tissue and the arm in the process of operation.As a result, It will bring enormous damage and injury of tissues to patients. So how to use high-tech method to make mechanics information feedback of the robot arm contact with biological tissue is quietly important, which can fundamentally solve the problem. It lays the foundation of safety for the popularity of surgery robot. As the medical technology level greatly improved by thoroughly, it can solve the trouble of people. A reverse change type era is coming.Firstly, this article analyzes the present situation about the development of surgical robots at home and abroad, and lists the medical device market situation at home and abroad in recent years. It also reflects the market in medical industry from the side or market demand of the surgical robot. The domestic and foreign sales increased year by year through analyzing,and the increase in speed is far greater than the speed of foreign domestic,but the domestic market prospect is even be better. The proportion of imported medical instrument is larger because of the domestic technology level is not high, as a result, the cost increases.Medical equipment remanufacturing is mentioned in the back,surgical robot can save operating costs for hospital by remanufacturing. In the same time, remanufacturing industry is also made in China mentioned in 2025 a new industry, which has a great potential for development. Through the analysis of the theory and calculating weights of medical apparatus and instruments, it objectively illustrates the feasibility.Secondly, comparison of the hardware structure of the experiment device demonstrates the overall design scheme, by comparison of advantages of each and the analysis of the experimental requirements, We selected the overall structure scheme 1 as a run-off of this device, first regimen includes mechanical parts, control hardware parts and software parts.Mechanical parts included screw module, intestinal fixture and the test platform. The hardware included Siemens PLC, panasonic servo motors, optical fiber sensor and each connection circuit. the software of control part is compiled through the ladder diagram, and is illustrated in the form of a flowchart, in addition to this, acquisition module use the Basic language for the programming. The plan contributes to high precision of transmission,convenient measurement and experimental analysis.Finally, we use king view 6.55 to develop the human-computer interaction interface system of portable friction force measuring device for biological tissue, which includes user management, main storage curve, real time curve, history motion control module, etc. On this basis, we carried on the debugging. The results show that the force measurement and control system can realize the basic function. It has the stable and reliable application,convenient and practical work. |
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