Bend-adjustable medical catheter and assembling method thereof

Abstract

The invention discloses a bend-adjustable medical catheter and an assembling method thereof. The bend-adjustable medical catheter comprises a catheter, a handle and a traction wire, wherein the far end of the traction wire is connected with an elastic far end of the catheter; and the bend-adjustable medical catheter further comprises a clamping device arranged in the handle and connected with the handle, the clamping device comprises a body and a rotating part, the body is provided with an accommodating groove and guide holes penetrating through the outer wall of the body and the accommodating groove, the rotating part is accommodated in the accommodating groove, and a slot which is smaller than the diameter of the traction wire is formed between the rotating part and the inner wall of the body, and the near end of the traction wire penetrates through the guide hole and is clamped in the slot. The assembling method comprises steps as follows: the near end of the traction wire penetrates through the guide holes formed in the body of the clamping device; and the rotating part is rotated to drive the traction wire to rotate to wind around the outer wall of the rotating part until the near end of the traction wire is clamped in the slot located between the rotating part and the body. The traction wire is firmly connected, the bend-adjusting reliability and flexibility are high, and the medical catheter can be adjusted on the scene to accord with the condition of an individual; and the assembling method is simple, reliable, convenient and flexible.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and relates to an adjustable bendable medical catheter and an assembly method thereof. Background technique [0002] Medical catheter is a kind of medical device widely used in minimally invasive interventional diagnosis and treatment operations. The more advanced in the prior art is the adjustable medical catheter. Compared with ordinary medical catheters, the adjustable medical catheter has a distal adjustable The curved function can reach the target lesion quickly and reliably to reduce the operation time. Adjustable medical catheters include, but are not limited to, adjustable bendable electrophysiological catheters and adjustable bendable sheaths. Adjustable bendable sheaths are used to establish channels in the human body, transport or retrieve implanted devices, enter drugs, or export body fluids; electrophysiological catheters are usually Under the monitoring of X-ray angiography...

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a firm and reliable connection and bending adjustment device for the defects in the prior art that the connection strength between the traction system and the clamping device is not high, the process is complicated and unreliable, and it is easy to cause product function failure. Adjustable curved medical catheter with high reliability and flexibility, simple manufacturing process and low cost and assembly method thereof

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