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Clamping mechanism and method for laser drilling of artificial soft arterial stent

A vascular stent and laser drilling technology, applied in the direction of wound clips, etc., can solve the problems of large positioning errors and low drilling quality, and achieve the effects of high work efficiency, improved drilling quality, and simple operation

Active Publication Date: 2021-05-25
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 arterial stent
  • Clamping mechanism and method for laser drilling of artificial soft arterial stent
  • Clamping mechanism and method for laser drilling of artificial soft arterial stent

Examples

Experimental program
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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 Figure 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 ja...

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 a method thereof for laser drilling of an artificial soft arterial stent. The clamping mechanism includes a mounting seat, an electric gripper and an aeroelastic mandrel. One end of the electric gripper is connected with the mounting base, and the other end has multiple clamping arms. The aeroelastic mandrel includes a mandrel body, a pneumatic assembly, and an inflation and deflation assembly, and the mandrel body includes a clamping section and a supporting section. A plurality of clamping grooves are provided on the clamping section, and each clamping arm can be clamped in a corresponding clamping groove. The pneumatic assembly includes an elastic bladder and an elastic outer wrap. The elastic air bag wraps the supporting section and has a ventilation opening. The elastic outer layer is sheathed outside the elastic air bag and can be inserted into the vascular support. The inflatable and deflated component is used to inflate the elastic airbag to inflate the elastic airbag to push the elastic outer layer against the vascular support. The invention reduces the positioning errors in the circumferential direction and the axial direction of the vascular stent, improves the accuracy and quality of laser drilling, and is easy to operate and improves the efficiency of laser drilling.

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 Patents(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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