A kind of cutting method of medical nickel-titanium alloy vascular stent

A technology of nickel-titanium alloy and cutting method, which is applied in the field of medical devices, can solve problems such as low yield and unstable production, and achieve the effects of reducing errors, improving manufacturing efficiency, and avoiding jitter errors

Active Publication Date: 2019-06-14
成都迈德克科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional vascular stents are made by weaving, which may lead to unstable production and low yield

Method used

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Experimental program
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Embodiment Construction

[0021] The present invention is described below:

[0022] The invention discloses a method for cutting a medical nickel-titanium alloy vascular stent, comprising determining the total length and inner diameter of the stent, selecting a nickel-titanium alloy tube; moving the positions of two movable clamps of the cutting machine so that the two clamps are respectively arranged on the nickel-titanium alloy tube The two ends of the fixed column are placed in liquid nitrogen to reduce the cooling diameter; the fixed column is passed through the nickel-titanium alloy tube, and the two ends of the fixed column are fixed by clamps; the fixed column is heated at room temperature or by hot air, so that The diameter of the fixed column is increased to be equal to the inner diameter of the nickel-titanium alloy tube; the fixed frame of the laser cutting head is moved above the position where the nickel-titanium alloy tube needs to be cut, and the fixed frame is parallel to the central axi...

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Abstract

The invention discloses a medical nickel-titanium alloy vascular stent cutting method. The cutting of vascular stents is realized through an X-directional mobile laser cutting head through a rotatingmotor driving nickel-titanium alloy pipes to rotate. The medical nickel-titanium alloy vascular stent cutting method directly performs the laser cutting on the nickel-titanium alloy pipes to once moldneeded stent structures, so that errors in the weaving process are reduced, meanwhile, the manufacturing efficiency is improved, and shaking errors caused by rotation of the laser cutting head are prevented.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a method for cutting a medical nickel-titanium alloy vascular stent. Background technique [0002] Vascular stent refers to the placement of internal stents in the diseased segment on the basis of lumen balloon expansion to support the stenotic and occluded segment of the vessel, reduce elastic recoil and reshaping of the vessel, and maintain smooth blood flow in the lumen. Some internal stents can also prevent restenosis. Traditional vascular stents are made by weaving, which may lead to unstable production and low yield. Contents of the invention [0003] The object of the present invention is to provide a method for cutting medical nickel-titanium alloy vascular stents in order to solve the above problems. [0004] The present invention achieves the above object through the following technical solutions: [0005] A kind of medical nickel-titanium alloy vascular stent cuttin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K26/38
CPCB23K26/38
Inventor 刘恒全李峻峰张佩聪苏方红
Owner 成都迈德克科技有限公司
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