Novel mechanism for converting continuous rotary motion into guide wire linear motion

Abstract

The invention relates to a novel mechanism for converting continuous rotary motion into guide wire linear motion, which comprises a base, a guide wire linear motion module and a guide wire rotary motion module, the guide wire linear motion module is driven by a motor A, the motor A drives a gear A to rotate, the gear A is meshed with a gear B, the gear B is arranged on a linear motion shaft, the other end of the linear motion shaft is provided with a gear F, and the gear F is meshed with the gear A; the gear F is meshed with an end face gear B and a gear E, the end face gear B is mounted on the rotating frame, the gear E is meshed with an end face gear A, the end face gear A is mounted on a gear seat, and the mounting seat and the gear seat are respectively fixed on the rotating frame; the guide wire rotating action module is driven by a motor B, the motor B drives a gear D to rotate, the gear D is meshed with a gear C, the gear C is fixedly connected to an adapter A, the adapter A is fixed to one end of a rotating frame, and an adapter B is installed at the other end of the rotating frame; the linear and rotary motion of the flexible guide wire is achieved, and the device has the advantages of being small in size, free of vibration and continuous in operation.

Description

[Technical field] [0001] The invention relates to the field of medical instruments, in particular to the field of cardiac and cerebrovascular interventional operations, in particular to a novel mechanism for converting continuous rotational motion into linear motion of a guide wire. [Background technique] [0002] The vascular intervention robot realizes remote interventional operation, effectively avoiding or reducing the radiation damage that medical staff may suffer during the operation. One of the main manipulation objects of the vascular intervention robot is the slender flexible guide wire, which needs to realize the linear delivery and rotation of the guide wire. [0003] At present, there are three technical means for the linear manipulation of the guide wire: first, the side walls of the paired rollers squeeze the guide wire and rotate continuously; The guide rail makes linear displacement; the third and at least two sets of clamps hold the guide wire in sequence, ...

AI Technical Summary

Problems solved by technology

Therefore, the operation efficiency of the first option is not high; the clamp in the third option can stably clamp the guide wire and prevent the guide wire from slipping out

However, in order to avoid vibration, noise and electrical failure of the robot, the two sets of fixtures cannot perform high-frequency opening and closing and reciprocating actions, which also greatly limits the ability of the robot to transport guide wires

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