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Flexible devices

一种挠性装置、挠性的技术，应用在人体管状结构的装置、医药科学、血管等方向，能够解决疲劳、应变、展伸器故障等问题

Active Publication Date: 2012-04-11
FLEXIBLE STENTING SOLUTIONS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This can create severe strain and fatigue, leading to failure of the stent

Method used

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Examples

Experimental program
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Embodiment Construction

[0064] Reference will now be made in detail to the preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings and descriptions to refer to the same or like parts.

[0065] Figure 1A with 1B is a plan view of a first embodiment of a stent 10 according to the present invention, shown in an unexpanded state and in an expanded state, respectively. As used herein, the term "plan view" should be understood to describe an unfolded plan view, which can be imagined as cutting the tubular stent along a line parallel to the axis of the tubular stent and laying it flat. open. Thus, it should be understood that in a practical stent, Figure 1A The top edge of will be joined to the bottom edge.

[0066] Stent 10 is made of common materials used for self-expanding stents, such as Nitinol nickel-titanium alloy (Ni / Ti), as is known in the art. Typically, the sten...

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PUM

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Abstract

A self expanding flexible or balloon expandable flexible device includes a helical strut member helically wound about an axis of the stent. The helical strut member comprises a plurality of helical strut elements. A plurality of individual helical elements are helically wound about the axis of the device in the same direction of the helical strut member with the helical elements extending between and interconnecting points on subsequent windings of the helical strut member. The device can be a flow diverter, anchor, revascularization device or filter. A self expanding flexible bifurcation device can include at least one leg. The at least one leg comprising the helical strut member and the plurality of individual helical elements helically wound about the axis of the device in the same direction of the helical strut member with the helical elements extending between and interconnecting points on subsequent windings of the helical strut member.

Description

Background technique [0001] The present invention relates generally to expandable tubular structures that can be inserted into small spaces within a living body, and more particularly to stents or stent-like structures that can be manipulated without mechanical failure and in geometrically Substantial and / or repeated deflection in a compressed or expanded configuration at various points along its length with considerable variation. [0002] A stent is a tubular structure that, in a radially compressed or collapsed state, can be inserted into a narrow space in a living body, such as an artery or other vessel. After insertion, the stent can expand radially to expand the space in which it is located. Stents typically exhibit either balloon-expanding (BX) or self-expanding (SX) features. Stents that expand like balloons require a balloon, which is usually part of the delivery system, to inflate the stent from within the vessel and dilate the vessel. A self-expanding stent is de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/06A61F2/82
CPCA61F2002/91525A61F2002/91516A61F2230/0054A61F2002/823A61F2/07A61F2/01A61F2/915A61F2002/825A61F2002/068A61F2/88A61F2002/065A61F2002/91508A61F2/91A61F2250/001A61F2/04A61F2/06A61F2/82A61F2/958A61F2002/016
Inventor B·比奇珍妮特·伯皮
Owner FLEXIBLE STENTING SOLUTIONS