Clamping mechanism and method for laser drilling of artificial soft-bodied artery vessel stent

A vascular stent and laser drilling technology, which is applied in the direction of wound clips, etc., can solve the problems of low drilling quality and large positioning error, and achieve the effect of high drilling quality, small drilling error, and improved drilling quality

Active Publication Date: 2020-10-02
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problems of large positioning errors in the circumferential direction and axial direction of the existing artificial soft vascular stents and low drilling quality, the present invention provides a clamping mechanism and method for laser drilling of artificial soft arterial stents

Method used

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  • Clamping mechanism and method for laser drilling of artificial soft-bodied artery vessel stent
  • Clamping mechanism and method for laser drilling of artificial soft-bodied artery vessel stent
  • Clamping mechanism and method for laser drilling of artificial soft-bodied artery vessel stent

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Effect test

Embodiment 1

[0055] see Figure 1-5 , the present embodiment provides a clamping mechanism for laser drilling of an artificial soft arterial stent, which can be used as a laser drilling device for drilling holes on a thin-walled circular tubular artificial soft arterial stent. The clamping mechanism realizes the fixation and clamping operation of the artificial soft arterial stent during the laser drilling process of the thin-walled circular tubular artificial soft arterial stent, ensures the positioning error in the circumferential direction and the axial direction, and realizes the accurate laser drilling position. Wherein, the clamping mechanism is used to clamp a blood vessel stent 15 and includes a mounting base 1 , an electric clamping jaw 2 and a pneumatic elastic mandrel 3 .

[0056] A threaded hole for connecting an external device is provided on the mounting base 1 . When the laser drilling equipment does not have a corresponding clamping device, the mounting base 1 can be insta...

Embodiment 2

[0077] see Image 6 This embodiment provides a clamping mechanism for laser drilling of artificial soft artery stents, which is similar to the clamping mechanism in Embodiment 1, except that the electric gripper 2 of this embodiment is an electromagnetically driven gripper. Wherein, each clamping arm 22 can be tightened in the electrified state, and the electric clamping jaw 2 clamps each clamping arm 22 in the corresponding clamping groove 4 . Each clamping arm 22 can be released when the power is off, and the electric clamping jaw 2 makes each clamping arm 22 disengage from the corresponding clamping groove 4 . The electrically driven jaws will drive each clamp arm 22 to tighten inwardly when energized, so that each clamp arm 22 is clamped in each clamping groove 4, and then can loosen the clamp arm 22 when the power is turned off, so that the electric clamp The claw 2 is separated from the pneumatic elastic core rod 3, and the clamping reliability of the electric clamp jaw...

Embodiment 3

[0081] This embodiment provides a clamping method for laser drilling of an artificial soft artery stent, and the clamping method is applied to the clamping mechanism for laser drilling of an artificial soft artery stent in embodiment 1 or embodiment 2. Wherein, the clamping method includes the following steps.

[0082] 1. Determine whether the laser drilling equipment is equipped with a clamping device. Laser drilling equipment is used to drill thin-walled tubular artificial soft arterial stents to produce special medical devices.

[0083] 2. When the laser drilling equipment is equipped with a clamping device, place the mounting base 1 in the clamping device, and fix the electric gripper 2 on the platform of the laser drilling equipment.

[0084] 3. When the laser drilling equipment is not equipped with a clamping device, place the mounting base 1 below, place the pneumatic elastic mandrel 3 above and install it on an external rotary table.

[0085] 4. Set the vascular sten...

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Abstract

The invention discloses a clamping mechanism and method for laser drilling of an artificial soft-bodied artery vessel stent. The clamping mechanism comprises a mounting seat, an electric clamping jawand a pneumatic elastic mandril, wherein one end of the electric clamping jaw is connected with a mounting seat, a plurality of clamping arms are arranged at the other end of the electric clamping jaw; the pneumatic elastic mandril comprises a mandril body, a pneumatic assembly and an inflating and exhausting assembly; the mandril body comprises a clamping segment and a support segment; a plurality of clamping grooves are formed in the clamping segment, and each clamping arm can be clamped in the corresponding clamping groove; the pneumatic assembly comprises an elastic air bag and an elasticexternal connecting layer; the elastic air bag is used for wrapping the support segment, and a vent hole is formed; the elastic external connecting layer sleeves the elastic air bag, and can be inserted into the vessel stent; and the inflating and exhausting assembly is used for inflating air into the elastic air bag, so that the elastic air bag expands to enable the elastic external connecting layer to be abutted against the vessel stent. The positioning errors of the vessel stent in the circumferential direction and in the axial direction can be reduced, the laser drilling accuracy and the drilling quality are improved, the operation is simple, and the laser drilling efficiency is improved.

Description

technical field [0001] The invention relates to a clamping mechanism in the technical field of medical device processing and manufacturing, in particular to a clamping mechanism for laser drilling of an artificial soft artery stent, and also to a clamping method for the laser drilling of an artificial soft artery stent of the mechanism . Background technique [0002] The thin-walled tubular artificial soft arterial stent is a special medical device for the treatment of human aortic vessel damage. It is composed of a special film and a skeleton, and belongs to the thin-walled tubular part. According to the needs of disease treatment, laser drilling is generally used to quickly create holes of different diameters on the wall of the artificial soft vascular stent. Due to the thin wall thickness and light weight of the artificial soft arterial stent, there is no special clamping device for clamping, and the positioning is completely dependent on manual experience, resulting in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/128
CPCA61B17/128
Inventor 翟华刘泉城洪占勇严中亚
Owner HEFEI UNIV OF TECH
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