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Improved carotid artery stent implantation instrument

A carotid, improved technology, applied in the field of medical devices, can solve the problems of thrombus falling off, reducing the success rate of surgery, complicated surgical procedures, etc., to achieve the effect of improving the success rate, avoiding wound infection, and simplifying surgical steps

Inactive Publication Date: 2022-05-13
THE FIRST AFFILIATED HOSPITAL OF MEDICAL COLLEGE OF XIAN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Carotid artery stent implantation using the above two implantation devices requires the use of a balloon to pre-expand the carotid artery stenosis, and make the thrombus in the carotid artery stenosis location fall off, and then put the carotid artery stent on the balloon to continue Stretch into the pre-expanded position, expand and fix the carotid artery stent through the expansion of the balloon; the whole operation process needs to insert the device into the carotid artery twice, which causes more operation pain to the patient, and makes the whole operation The process is very complicated, and more importantly, the two implanted instruments are more likely to cause wound infection, which reduces the success rate of the operation

Method used

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  • Improved carotid artery stent implantation instrument
  • Improved carotid artery stent implantation instrument
  • Improved carotid artery stent implantation instrument

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] This embodiment 1 discloses an improved carotid artery stent implantation device, refer to the attached figure 1 And attached figure 2 , the main body of the carotid stent implantation device includes an outer sheath 100 , a pre-dilation balloon 200 and a carotid stent expansion balloon 400 .

[0046] Reference attached Figure 5 , the pre-expansion balloon 200 is arranged on the left end of the outer sheath tube 100 during design, the carotid artery stent expansion balloon 400 is arranged on the right end of the outer sheath tube 100, and a carotid artery stent is arranged on the outer surface of the carotid artery stent expansion balloon 400 700. The carotid stent 700 in this embodiment is a self-expanding stent, and is formed by laser engraving nickel-titanium superelastic alloy tubing.

[0047] Reference attached figure 2 , attached Figure 9 And attached Figure 10 , the outer sheath tube 100 located in the pre-expansion balloon 200 is provided with a first ...

Embodiment 2

[0055] This embodiment 2 discloses an improved carotid artery stent implantation device based on the improvement of embodiment 1, refer to the attached figure 1 And attached figure 2 , the main body of the carotid stent implantation device includes an outer sheath tube 100 , a pre-dilation balloon 200 , a carotid stent expansion balloon 400 and a protective umbrella assembly 300 .

[0056] Wherein, the structural designs of the outer sheath tube 100, the pre-expansion balloon 200, and the carotid stent expansion balloon 400 are all the same as those in Example 1, and this Example 2 will not be described in detail. The difference is that:

[0057] The present embodiment 2 also includes a protective umbrella assembly 300, refer to the attached figure 2 , attached Figure 6 , attached Figure 7 And attached Figure 8 , the protective umbrella assembly 300 includes a guide wire rod 301 set through the inner liquid injection tube 500 and a protective umbrella head 302 arrange...

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Abstract

The invention relates to the technical field of medical instruments, and particularly discloses an improved carotid artery stent implantation instrument. Comprising an outer sheath tube, a pre-dilation balloon and a protective umbrella assembly, a carotid artery stent dilation balloon is further arranged on the outer sheath tube, a carotid artery stent is arranged on the outer surface of the carotid artery stent dilation balloon, and a first annular groove protruding towards the interior of the pre-dilation balloon is formed in the portion, located in the pre-dilation balloon, of the outer sheath tube; a first annular groove is formed in the outer sheath tube, a first rotating-in opening is formed in the first annular groove, a second annular groove is formed in the outer sheath tube located in the carotid artery stent expansion balloon, a second rotating-in opening is formed in the second annular groove, and the first rotating-in opening and the second rotating-in opening are formed in the circumferential surface of the outer sheath tube in a circumferentially staggered mode; according to the designed implantation instrument, in the implantation operation process, only one-time implantation of the instrument is needed, the whole operation steps are greatly simplified, wound surface infection more easily caused by two-time implantation of the instrument is effectively avoided, and the success rate of the operation is increased.

Description

technical field [0001] The invention relates to the technical field of medical devices, and specifically discloses an improved carotid artery stent implantation device. Background technique [0002] Cerebrovascular disease is a major disease that threatens human health today, and it is the third leading cause of death after cardiovascular diseases and tumors. Carotid artery stenosis is a common disease, both congenital and pathologically caused carotid artery stenosis. At present, the treatment of carotid artery stenosis mainly includes medical treatment, carotid endarterectomy and carotid artery stenting. In the past 20 years, with the maturation of neuroimaging and neurointerventional technology, the improvement of interventional materials and the improvement of operator skills, carotid angioplasty and stent placement are characterized by safety, effectiveness, minimal invasiveness, and remarkable curative effect. It has become the main treatment for carotid artery steno...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/958A61F2/962A61M29/04
CPCA61F2/958A61F2/962A61M29/02
Inventor 杨林李燕姿刘建林
Owner THE FIRST AFFILIATED HOSPITAL OF MEDICAL COLLEGE OF XIAN JIAOTONG UNIV