Three-control bent handle

Abstract

The invention discloses a three-control bent handle which comprises a grasping part and a control component mounted at the grasping part. The three-control bent handle is characterized in that the control component comprises a first push-pull key, a second push-pull key and a rotating key, wherein the first push-pull key can be glidingly mounted at the grasping part in a length direction of the grasping part, and is connected with a sliding block; a first traction wire is fixed on the sliding block; the second push-pull key can be glidingly assembled in an inner cavity tube in the length direction of the grasping part, and drives the rotating key to glide in the length direction of the grasping part; a gear is used for fixing a second traction wire, and can rotate relative to the second push-pull key; and the rotating key is matched with the gear and drives the gear to rotate, so that the traction wires are driven to rotate. According to the device, the operation is convenient, a catheter is convenient to intervene, the design meets a man-machine engineering principle, a palm can completely hold the grasping part, and the handle can be stably operated when operated by a user.

Description

technical field [0001] The invention relates to a control handle for a medical catheter, in particular to a three-control bending handle for a medical catheter. Background technique [0002] Catheter tubing is usually made of flexible, biocompatible materials, such as plastics, including polyethylene, polyester, or polyamide. Due to the complex structure of the heart, a handle with superior manipulability is required to control the catheter, and it is extremely challenging to control the catheter to accurately reach different lesions of the heart. [0003] In order to solve this problem, catheters of various structures are used. Chinese invention patent application 200810176905 discloses a control handle with a device propulsion mechanism, which controls the relative movement of the catheter and the steel wire in a helical propulsion manner. In an improved example, Chinese Patent No. 200680030272.X discloses a structure that controls the contraction and expansion of the hel...

AI Technical Summary

Problems solved by technology

[0004] Most of the existing technologies use a propulsion mechanism with one-sided adjustment of the screw. This mechanism is likely to cause imbalance in the control of the propulsion device, and most of them are similar to or follow the foreign technology, and the control handle will allow the operator to operate for a certain period of time, which will easily lead to fatigue.

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