Force feedback device for minimally invasive surgery training system

Abstract

The invention relates to the field of design of medical apparatus, in particular to a force feedback device for a minimally invasive surgery training system. The force feedback device comprises a handle and a support which supports the handle to move back and forth, up and down and side to side. A displacement sensor and a force feedback unit are disposed between the handle and the support. The displacement sensor is used for acquiring location information of the handle and outputting the location information to a processing unit. The force feedback unit is used for control signals output by the processing unit and applying a feedback force to the handle through a steel wire. A direction of the feedback force applied by the force feedback unit to the handle is opposite to a moving direction of the handle before touch. The force is fed back by the force feedback unit in forward, backward, leftward, rightward, upward and downward directions. The steel wire is used for transmitting the force. The effect of force feedback is more approximate to true touch of hands; an intern can be trained better with the minimally invasive surgery training system comprising the force feedback device.

Description

technical field [0001] The invention relates to the field of medical device design, in particular to a force feedback device used in a minimally invasive surgery training system. Background technique [0002] It is very necessary for the interns of endoscopic minimally invasive surgery and the doctors of grass-roots hospitals to go to the endoscopic training base with the training qualification recognized by the Ministry of Health's endoscopic examination and evaluation committee. At that moment, until the end of the final operation, step by step standardization, these procedural standardized operations seem to be basic, but in fact they are extremely necessary. If the habit of non-standard operations continues for many years, it will not only affect the quality of medical devices, but also affect the doctor's own knowledge and skills. The cultivation of equipment is also harmful rather than beneficial. [0003] The minimally invasive surgery training systems currently in u...

AI Technical Summary

Problems solved by technology

[0002] It is very necessary for the interns of endoscopic minimally invasive surgery and the doctors of grass-roots hospitals to go to the endoscopic training base with the training qualification recognized by the Ministry of Health's endoscopic examination and evaluation committee. At that moment, until the end of the final operation, step by step standardization, these procedural standardized operations seem to be basic, but in fact they are extremely necessary. If the habit of non-standard operations continues for many years, it will not only affect the quality of medical devices, but also affect the doctor's own knowledge and skills. The training of equipment is also harmful rather than beneficial

[0003] The currently used minimally invasive surgical training systems are mainly imported from abroad. The foreign training systems are not only expensive, but the force feedback system is mainly realized by means of motors and gears, which is not realistic enough.

During training, when an intern or a doctor in a primary hospital operates a surgical instrument, the front end of the surgical instrument touches the virtual organ, and the organ will feed back a force to the surgical instrument. The existing devices are relatively stiff when providing this feedback force. It does not match the feedback force when touching the organs during the actual operation, and the feeling provided to the doctor is not good.

Even if some doctors use this system for training and standardize various operations, there are still risks in actual operation due to the difference in hand feeling

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