Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Combined intravascular stent with branch and implantation method thereof

A vascular stent and combined technology, applied in the field of medical devices, can solve the problems of large individual differences in spacing, high risk of displacement and occlusion, and unsatisfactory fitting of branch stents, and achieve the effect of reducing specifications and improving flexibility.

Pending Publication Date: 2021-05-07
胡佳
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For the large vessel disease of the aortic arch, a vascular stent with branches is needed. The position of each branch of the existing vascular stent with branches is fixed. During the operation, it is difficult to well adapt to the three branches of the normal human aortic arch. The large individual differences in the position and spacing of the vascular openings lead to a wide variety of stent specifications and unsatisfactory fit of branch stents after implantation, resulting in a high risk of long-term displacement and occlusion

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Combined intravascular stent with branch and implantation method thereof
  • Combined intravascular stent with branch and implantation method thereof
  • Combined intravascular stent with branch and implantation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Such as Figure 1 to Figure 5 As shown, the combined vascular stent with branches includes a main body 10 and a branch body 20. The main body 10 has a first tube end 11 (proximal end), a second tube end 12 (far-center end), and a second tube end 12 (distal end). There is a lumen between the first pipe end 11 and the second pipe end 12, and an elastic branch port is provided on the pipe wall of the main pipe body 10; the branch pipe body 20 includes a branch pipe part 21 and a branch seat body 22, divided into The support body 22 is connected to the main body 10 , and the branch pipe part 21 communicates with the lumen of the main body 10 through the branch port of the main body 10 . The outer diameter size range of the main body 10 is 20mm-40mm (such as: 20mm, 22mm, 24mm, 26mm, 28mm, 30mm, 32mm, 34mm, 36mm, 38mm, 40mm); the outer diameter size range of the branch pipe body 20 is 8mm -14mm (eg: 8mm, 10mm, 12mm, 14mm).

[0045] The implantation method of the combined va...

Embodiment 2

[0059] In this embodiment, there are three branch tube bodies 20, and the three branch tube bodies 20 all adopt an independent split structure, that is, they all include a branch tube part 21 and a branch seat body 22. The body 10 is implanted into the blood vessels of the human body, and the opening area 13 is aligned with the three branch vessels on the human aortic arch, and then the three branch tube bodies 20 are implanted into the branch blood vessels sequentially starting from the left subclavian artery. status as Figure 7 shown.

Embodiment 3

[0061] Such as Figure 8 , Figure 9 , Figure 10 As shown, in this embodiment, two fixed branch pipe bodies 20 are arranged on the main pipe body 10, and an independent branch pipe body 20 is matched. The structure of the independent branch pipe body 20 is the same as that of Embodiment 1, The second embodiment is different. In this embodiment, the branch base 22 adopts an umbrella disc structure, and the opening area 13 is set as a mesh structure, which can be made of metal material or polymer material.

[0062] In this embodiment, the branch stent selects different assembly release methods according to different introduction paths, taking the left common carotid artery as an example:

[0063] a. Retrograde introduction of the left common carotid artery, release the proximal umbrella disc of the branch stent first, lift the delivery sheath until the umbrella disc and the top surface of the stent arch of the main body 10 are well fitted, and then release the stent of the br...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a combined intravascular stent with a branch and an implantation method thereof. The combined intravascular stent with the branch comprises a main catheter body and a branch catheter body, the main catheter body is provided with a first catheter end and a second catheter end, a catheter cavity is formed between the first catheter end and the second catheter end, an elastic branch through opening is formed in the catheter wall of the main catheter body, the branch catheter body comprises a branch catheter part and a branch seat body, the branch seat body is connected with the main catheter body, and the branch catheter part is communicated with a catheter cavity of the main catheter body through the branch through opening of the main catheter body. According to the invention, the position of the branch blood vessel can be conveniently adjusted, and the adaptability is higher.

Description

technical field [0001] The invention belongs to the field of medical devices, and in particular relates to a combined branched vascular stent and an implantation method thereof. Background technique [0002] For the large vessel disease of the aortic arch, a vascular stent with branches is needed. The position of each branch of the existing vascular stent with branches is fixed. During the operation, it is difficult to well adapt to the three branches of the aortic arch in a normal human body. The large individual differences in the position and spacing of the vascular openings lead to a wide variety of stent specifications and unsatisfactory fit of branch stents after implantation, resulting in a high risk of displacement and occlusion in the long term. Contents of the invention [0003] The object of the present invention is to provide a combined vascular stent with branches and an implantation method thereof. The present invention can conveniently adjust the position of...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/856A61F2/954
CPCA61F2/856A61F2/954A61F2002/821A61F2002/825
Inventor 胡佳
Owner 胡佳
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com