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Variable porosity intravascular implant and manufacturing method

A technology of porosity and blood vessels, applied in the field of intravascular implants, can solve the problems of multiple layers, increased cost, difficult preparation, etc.

Active Publication Date: 2014-09-17
DEPUY SYNTHES PROD INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In general, however, these devices can face fabrication difficulties and can increase cost due to difficulties in creating multiple layers or variations in the number of filaments used to create regions of variable porosity

Method used

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  • Variable porosity intravascular implant and manufacturing method
  • Variable porosity intravascular implant and manufacturing method
  • Variable porosity intravascular implant and manufacturing method

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Embodiment Construction

[0026] Certain exemplary embodiments will now be described to provide an overall understanding of the structure, function, manufacture, and use of the devices and methods disclosed herein. One or more examples of these embodiments are illustrated in the accompanying drawings. Those skilled in the art will appreciate that the devices and methods specifically described herein and illustrated in the accompanying drawings are non-limiting exemplary embodiments and that the scope of the present invention is defined only by the claims. Features illustrated or described with respect to one exemplary embodiment may be combined with features of other embodiments. Such modifications and variations are intended to be included within the scope of the present invention.

[0027]Furthermore, in this disclosure, like-numbered components of an embodiment generally have the same features, and thus not necessarily every feature of each like-numbered component is fully detailed in a particular ...

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Abstract

A vascular occlusion device (10) for effectively occluding blood flow and pressure to a vascular defect while simultaneously not occluding blood flow and pressure to adjacent vasculature is provided. The vascular occlusion device can include a tubular member that has variable porosity regions (24, 26, 28) along its length. The tubular member can be formed of a plurality of filaments (30) that have different cross-sectional shapes along their length that are indexed to the variable porosity regions along the length of the tubular member.

Description

technical field [0001] The present invention relates generally to intravascular implants, and more particularly to occlusive devices, such as vascular stents. Background technique [0002] Vascular diseases and defects such as aneurysms and other arteriovenous malformations often occur near the junction of large arteries, for example, in the cerebral artery ring at the base of the brain. As aneurysms evolve, they typically form as saccular aneurysms protruding from the vessel wall and have a neck and fornix. Alternatively, aneurysms may form as fusiform deformities that dilate the cross-section of the involved vessel. [0003] As the aneurysm evolves, the elastic lamina within the artery at the base of the neck disappears, the media thins, and connective tissue replaces smooth muscle cells. As the aneurysm continues to experience vascular pressure and flow, the aneurysm will grow outward from the vessel wall, which can exert pressure on surrounding tissue as the sac or shu...

Claims

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Application Information

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IPC IPC(8): A61B17/12A61F2/07
CPCA61F2250/0023A61F2250/0036D04C1/06A61F2/86A61F2/90A61F2002/823A61B17/12118A61B17/12145A61F2230/0004
Inventor J.A.洛伦佐
Owner DEPUY SYNTHES PROD INC
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