Controllable bent catheter

Abstract

The invention discloses a controllable bent catheter. The controllable bent catheter comprises a catheter body, a handle adjusting mechanism and a first traction wire. The catheter body is provided with a near end and a far end; the far end has flexibility; the handle adjusting mechanism comprises a screw rod, a first moving part and an adjusting knob; the near end of the catheter body is rotatably sleeved with the screw rod; the screw rod is in threaded connection with the first moving part through threads; the adjusting knob is connected with the screw rod; and one end of the first tractionwire is connected to the first moving part, and the other end of the first traction wire is connected to the far end. The adjusting knob is rotated and drives the screw rod to rotate, the screw rod rotates to drive the first moving part to move, and the first moving part drags the first traction wire to adjust the curvature of the far end of the catheter body.

Description

technical field [0001] The invention relates to the field of vascular interventional medical devices, in particular to a controllable bending catheter. Background technique [0002] Interventional therapy is a minimally invasive treatment using modern high-tech means. Under the guidance of medical imaging equipment, special catheters, guide wires and other precision medical devices are introduced into the human body to establish access, transport devices or drugs, etc. , in the existing catheter design and manufacture, most of the distal ends of the catheter are shaped into different curved shapes to meet different anatomical structures of blood vessels, so that the catheter can pass through and reach the lesion, but this pre-shaped bend After the shape enters the blood vessel, it is deformed and is no longer the shape the operator wants, and thus cannot accurately reach the target position, thus failing to meet clinical needs. [0003] In order to solve the problem of diff...

AI Technical Summary

Problems solved by technology

[0002] Interventional therapy is a minimally invasive treatment using modern high-tech means. Under the guidance of medical imaging equipment, special catheters, guide wires and other precision medical devices are introduced into the human body to establish access, transport devices or drugs, etc. , in the existing catheter design and manufacture, most of the distal ends of the catheter are shaped into different curved shapes to meet different anatomical structures of blood vessels, so that the catheter can pass through and reach the lesion, but this pre-shaped bend After the shape enters the blood vessel, it is deformed and is no longer the shape that the operator wants, so it cannot reach the target position accurately, thus failing to meet the clinical needs

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