Leading wire/conduit operating torque detection device of endovascular interventional surgical robot

Abstract

The invention discloses a leading wire / conduit operating torque detection device of an endovascular interventional surgical robot, and belongs to the technical field of manufacturing of medical equipment. A transmission gear, which is used for implementing a leading wire / conduit twisting operation, is arranged on the torque detection device, and a spring coil is fixedly connected to the inner circumferential surface of the transmission gear; the spring coil is formed by an outer ring and an inner ring which are concentric via four spring sheets; the four spring sheets are uniformly distributedin a circumferential direction of the spring coil, so that a cross structure is formed; four resistance strain gauges are fixed to the four spring sheets, and the four resistance strain gauges are connected, so that a full bridge converter is formed; and the full bridge converter is connected to an external signal output circuit via a conductive slip ring. According to the device, online detection of slave end leading wire or conduit operating torque can be achieved, so that torsional resistance of a conduit / leading wire can be sensed by doctors, and subsequently, the operating state of a slave end operation can be sensed.

Description

technical field [0001] The invention belongs to the technical field of medical equipment manufacturing, and in particular relates to a device for detecting operating torque of a guidewire / catheter robot for interventional surgery in a blood vessel cavity. Background technique [0002] The increasing incidence of cardiovascular and cerebrovascular diseases has seriously affected national health and social life, and brought enormous pressure to China's medical and health system. Cardiovascular and cerebrovascular minimally invasive interventional therapy is the main treatment for cardiovascular and cerebrovascular diseases. It can reduce trauma and pain for patients, shorten postoperative recovery time, and effectively improve the utilization of medical resources. The surgical method of remote operation of catheter and guide wire with the help of robotic technology can greatly improve the accuracy and stability of surgical operations, and at the same time effectively reduce th...

AI Technical Summary

Problems solved by technology

[0003] At present, the robot for vascular interventional surgery mainly adopts the master-slave operation structure to isolate the doctor from the radiation. Therefore, the doctor's perception of the operation status of the slave end, especially the perception of the push resistance and torsional resistance of the catheter or guide wire, is crucial for the smooth progress of the operation. and surgical safety are very important; while the existing vascular interventional surgery robots focus on the high-precision realization of push-pull and torsion operations, as well as the detection of push resistance, there is insufficient research on the on-line detection of torsional torque from the end guide wire or catheter

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