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Cutting method capable of saving cardiovascular stent pipe tailings

A cutting method and stent tube technology, which are applied to tubular articles, applications, laser welding equipment, etc., can solve the problems of waste of raw material resources, unusable rate, high price, etc., and achieve the effects of improving utilization rate, saving use and simple operation.

Active Publication Date: 2016-01-13
JW MEDICAL SYSTEMS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The raw materials of cardiovascular stents include 316L stainless steel, cobalt-chromium alloy, nickel-titanium alloy, etc., and the prices are relatively expensive (due to the high price, it is necessary to save the tubes used in cardiovascular stents to the greatest extent), due to the existing cutting process and methods However, in the tubes used for laser cutting cardiovascular stents, there will be a piece of tailings left at the end, which cannot maximize the utilization rate, resulting in a huge waste of raw materials and resources

Method used

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  • Cutting method capable of saving cardiovascular stent pipe tailings
  • Cutting method capable of saving cardiovascular stent pipe tailings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment one: choose the 316L stainless steel tubing (small-caliber tubing) with a caliber of 1.4mm and the 316L stainless steel tubing (large-caliber tubing) with a caliber of 1.6mm:

[0016] First, select a 1.4mm 316L stainless steel pipe with a length of about 30mm, and evenly apply a layer of Loctite 416 glue on the outer surface of both ends of the 1.4mm 316L stainless steel pipe with a cotton swab (other strong glue is also available), and the length of the application is 10mm ( See the bonding part 5) in the figure, and then insert a section of 1.6mm 316L stainless steel pipe at both ends of the 1.4mm 316L stainless steel pipe. mm 316L stainless steel pipes are bonded together to form the bonding part 5, thereby realizing seamless bonding between 1.4mm 316L stainless steel pipes and 1.6mm 316L stainless steel pipes; then place the bonded pipes on the working platform In the fixture 4 on 6, the 1.6mm 316L stainless steel pipe is cut by the laser beam 3 of the la...

Embodiment 2

[0017] Embodiment two: the cobalt-chromium pipe (small-diameter pipe) and the cobalt-chromium pipe (large-diameter pipe) with a diameter of 2.0mm are selected as caliber 1.6mm:

[0018] First, select a 1.6mm cobalt-chromium pipe with a length of about 30mm, and apply a layer of Loctite 416 glue evenly on the outer surface of both ends of the 1.6mm cobalt-chromium pipe with a cotton swab (other superglue is also available), and the length of the application is 10mm ( See the bonding part 5) in the figure, and then insert a section of large-diameter pipe 2 at both ends of the 1.6mm cobalt-chromium pipe, and under the action of superglue, the two ends of the 1.6mm cobalt-chromium pipe and the 2.0mm The cobalt-chromium pipes are bonded together to form the bonding portion 5, thereby realizing the seamless bonding between the 1.6mm cobalt-chrome pipes and the 2.0mm cobalt-chromium pipes; then the bonded pipes are placed on the working platform 6 In the fixture 4, the laser beam 3 o...

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Abstract

The invention discloses a cutting method capable of saving cardiovascular stent pipe tailings. The cutting method is characterized in that used pipes are divided into small-aperture pipes and large-aperture pipes. The cutting method comprises the following steps: firstly, selecting the small-aperture pipes with length of about 30mm, uniformly coating a layer of strong glue on the outer surfaces at the two ends of each small-aperture pipe by use of a cotton swab, bonding the two ends of each small-aperture pipe with large-aperture pipes under the action of strong glue to form bonding parts, thereby realizing seamless bonding between the small-aperture pipes and the large- aperture pipes; then, putting the bonded pipes into a clamp on a working platform to carry out cutting, wherein a small-aperture pipe section with length of about 30mm is bonded between two large-aperture pipe sections, so that large-aperture pipe tailings are reduced to an extreme; after the large-aperture pipes are cut, heating the bonding parts of the pipes, thereby realizing separation of the two pipes. The cutting method is simple to operate, and more economical; utilization rate of the pipes is increased by 5%-10%, and use of raw materials is effectively saved.

Description

technical field [0001] The invention relates to a cutting method, in particular to a cutting method for saving tailings of cardiovascular stent tube materials. Background technique [0002] Cardiovascular stent is a medical device commonly used in cardiac interventional surgery, which has the function of dredging arteries. The cutting of the tubes used in cardiovascular stents is a very precise processing technology. At present, the cutting of cardiovascular stent tubes mainly uses laser cutting technology to cut out various network-shaped cardiovascular stents. The raw materials of cardiovascular stents include 316L stainless steel, cobalt-chromium alloy, nickel-titanium alloy, etc., and the prices are relatively expensive (due to the high price, it is necessary to save the tubes used in cardiovascular stents to the greatest extent), due to the existing cutting process and methods The defect is that in the tubes used for laser cutting cardiovascular stents, there will be a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/38B23K26/60B23K101/06
CPCB23K26/38B23K2101/06
Inventor 张春明孔令涛常大伟娄德大
Owner JW MEDICAL SYSTEMS LTD
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