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

Stent and method of inserting stent into delivery catheter

A frame and deformation element technology, applied in the field of aneurysm treatment, can solve the problems of no supply, large radial strength, blockage of branch vessels, etc., and achieve the effects of preventing blockage, strong radial strength, and reducing the occupying effect

Active Publication Date: 2016-09-14
ISIS INNOVATION LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But they have their own limitations, mainly because these two kinds of scaffolds are braided scaffolds, which don't provide much radial strength
In addition, use of these stents may result in blockage of branch vessels

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
  • Stent and method of inserting stent into delivery catheter
  • Stent and method of inserting stent into delivery catheter
  • Stent and method of inserting stent into delivery catheter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031]In the following description, any reference to a deformable element should be understood to include both forward deformation (eg stretching, stretching) and reverse deformation (eg contraction). Typically, the scaffold will be formed from a material that is elastic at room temperature and / or body temperature. Typically, the stent will be configured such that the stent frame is resilient to all deformations during normal use at room temperature and / or body temperature. However, this is not required. The stent frame may be configured to allow some degree of plastic deformation at room temperature and / or body temperature.

[0032] figure 1 with figure 2 is a schematic side view of an example stent in a radially fully expanded state. The support comprises an elongated frame 2 . Frame 2 can be cylindrical, for example. When the frame 2 is cylindrical, its maximum transverse dimension is the same (ie equal to the diameter) at all positions and angles. When the frame 2 ...

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

A stent and method of inserting the stent into a delivery catheter are disclosed. In disclosed embodiments, a stent for redirecting blood flow away from an aneurysm sac is provided. The stent includes an elongated frame, which can be radially contracted from a radially fully expanded state to a radially contracted state during the elongation process, wherein: the radially fully expanded state means that when no external force is applied to the the state of the frame at body temperature when the frame is described; the maximum lateral dimension of the frame in the radially contracted state is at least 30% smaller than the maximum lateral dimension of the frame in the radially fully expanded state; and The frame includes a low porosity region at an opening facing the aneurysm sac, the low porosity region having a porosity of less than 50% when the frame is in the radially fully expanded state.

Description

technical field [0001] The present invention relates to the field of stents for the treatment of aneurysms, such as intracranial aneurysms (also known as cerebral aneurysms). Background technique [0002] An intracranial aneurysm is a weak area in the wall of an artery in the brain where dilation or bulging of the artery wall may occur. Histologically, narrowing of the arterial media, muscularis intermediary, and internal elastic lamina causes structural defects. These defects combined with hemodynamic factors lead to out-punching of the aneurysm. Intracranial aneurysms are very common, affecting one to five percent of adults, according to autopsy studies. In the United States alone, perhaps 10 to 12 million people have intracranial aneurysms. [0003] Current methods used to treat intracranial aneurysms include surgical clipping and endovascular coiling. In the surgical clipping method, the patient's skull is opened and surgical clips are placed across the neck of the a...

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 Patents(China)
IPC IPC(8): A61F2/91
CPCA61B17/12031A61B17/12113A61B17/12159A61B17/12172A61B2017/1205A61F2/9525A61F2/91A61F2/915A61F2002/823A61F2210/0014A61F2210/0019A61F2230/0054A61F2250/0023A61F2/9522A61F2/07A61F2/82A61F2/844A61F2/90
Inventor 周翔尤忠詹姆斯·伯恩
Owner ISIS INNOVATION LTD
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