Unlock instant, AI-driven research and patent intelligence for your innovation.

Delivery system for expandable stents

A vasculature, self-expanding technology, applied in stents and other directions, can solve problems such as radial expansion of stents

Active Publication Date: 2014-09-17
DEPUY SYNTHES PROD INC
View PDF4 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, pushing the device in the catheter distally from the proximal end of the device is not optimal because exerting a force in the distal direction on the proximal end of the stent can compress the stent axially and can cause the stent to expand radially
Also, retracting the device proximally may not be optimal, as applying a proximally directed force on the distal end of the stent can also compress the stent axially and can cause the stent to expand radially

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
  • Delivery system for expandable stents
  • Delivery system for expandable stents
  • Delivery system for expandable stents

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026]Referring to the figures provided by way of example and not by way of limitation, the present invention provides a device 10 for delivering and releasing a self-expanding stent to a treatment site in a patient's vasculature 11 . like figure 1 As shown, the device includes a catheter 12 having a lumen 14, a tubular self-expanding stent 16 having a lumen (not shown), a proximal end 18, a distal end 20, and a lumen (not shown) at the proximal and distal ends. not shown) in the middle section 22. see Figure 1-5 , the tubular self-expanding stent has a compressed configuration and is shown in Figure 7 In an expanded configuration, the compressed configuration is sized to fit within the lumen of a catheter such that the tubular self-expanding stent is configured to be limited in expansion when included within the catheter. The tubular self-expanding stent preferably includes one or more anchor members 28, such as proximal anchor members 28a, 28b and 28, connected to and e...

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 system for delivering and releasing a self-expanding stent includes a catheter, a tubular self-expanding stent configured to be constrained from expanding when the tubular self-expanding stent is contained within the catheter, and a core advancement wire disposed within and extending through a lumen of the tubular self-expanding stent. One or more stop members on the core advancement wire engage one or more anchor members on the stent when the core advancement wire is translated longitudinally toward the one or more anchor members.

Description

Background technique [0001] The present invention generally relates to devices for interventional therapeutic treatment or vascular surgery for treating defects in the vasculature, and more particularly to a device for delivering a self-expanding stent to a treatment site in a patient's vasculature. system. [0002] Stents, which are tubular reinforcements inserted into blood vessels to provide an open pathway within the blood vessel, have been widely used in endovascular angioplasty treatments for occluded cardiac arteries. In this application, stents are inserted after angioplasty procedures or the like to prevent restenosis of the arteries. In these applications, stents are typically deployed using an inflatable balloon or a mechanical device that forces the stent open, thereby strengthening the arterial wall and providing a clean access in the center of the artery to prevent restenosis after an angioplasty procedure. [0003] Although this procedure is useful in certain ...

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): A61F2/966
CPCA61F2/91A61F2/848A61F2/966A61F2002/9665
Inventor H.H.吉纳里A.索托德瓦勒J.A.洛伦佐P.福斯特
Owner DEPUY SYNTHES PROD INC