A kind of advanced high torque control conduction guide wire and its preparation method

Abstract

The invention discloses an advanced high-twist control conduction guide wire and a preparation method thereof, which belong to the technical field of medical devices and include a guide wire body, which includes a stainless steel core wire, a hollow rope, a safety rope, an interwoven rope and TPU Containing tungsten tube, the thinnest grinding section of the stainless steel core wire is 0.009mm, and the hollow rope is set in the middle of the stainless steel core wire. The wire diameter is very thin 0.0002‑0.04mm. The safety rope is located beside the stainless steel core wire and inside the hollow rope. The safety rope is twisted from 2‑20 strands of stainless steel 304 ultra-fine wire into a strand like a twist. The interwoven rope is set on the safety wire. Rope, hollow rope, stainless steel core wire, interwoven rope is two 304 stainless steel wires coaxially interwoven and twisted into a spring shape, TPU tungsten tube is sleeved on the interwoven rope, and the inner diameter of TPU tungsten tube is 0.2‑0.4mm , the outer diameter is 0.4‑0.6mm, the thinnest on one side is 0.05mm, and contains 60% tungsten, which solves the problem that the weight of the tip of the guide wire is too hard and the blood vessels are easily damaged when entering complex CTO lesions.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an advanced high-twist control conduction guide wire and a preparation method thereof. Background technique [0002] When treating stenosis that occurs in blood vessels such as coronary arteries surrounding the heart or treating areas that are completely occluded in blood vessels due to the progression of calcification (for example, chronic total occlusion: CTO, etc.), it is necessary to place the A guide wire used to guide these devices is first inserted into the blood vessel. [0003] In the prior art, the weight of the tip of the current guide wire is relatively hard, and it is easy to damage blood vessels when entering complex CTO lesions. Contents of the invention [0004] The embodiment of the present invention provides an advanced high-twist-controlled conduction guide wire and its preparation method to solve the problem that in the prior art, the weight of the ...

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides an advanced high-twist-controlled conduction guide wire and its preparation method to solve the problem that in the prior art, the weight of the head end of the current guide wire is too hard, and it is easy to damage blood vessels when entering complex CTO lesions question

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