Self constraining radially expandable medical devices

US8936634B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8936634-B2
Application numberUS-201113009707-A
CountryUS
Kind codeB2
Filing dateJan 19, 2011
Priority dateJul 15, 2009
Publication dateJan 20, 2015
Grant dateJan 20, 2015

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  2. Abstract

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Abstract

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The current invention discloses tubes that can be constrained and expanded by either axial or torsional strain. By torsionally displacing the tube in a direction counter to the biased helices and angularly displacing the lower angle helix to an angle equal to, but opposite, the starting angle, the tube is expanded diametrically with no significant change in length after expansion of the tube. These tubes find utility in medical and non medical applications.

First claim

Opening claim text (preview).

What is claimed is: 1. A tubular structure having a longitudinal axis comprising a first element oriented at a first angle of θ and a separate second element oriented at a second angle of γ, wherein: a. θ does not equal γ; b. θ and γ are formed at an angle of between about +/−90 degrees relative to the axis of the tubular structure; and c. wherein when a first length section of the tubular structure is displaced rotationally relative to a second length section of the tubular…

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What does patent US8936634B2 cover?
The current invention discloses tubes that can be constrained and expanded by either axial or torsional strain. By torsionally displacing the tube in a direction counter to the biased helices and angularly displacing the lower angle helix to an angle equal to, but opposite, the starting angle, the tube is expanded diametrically with no significant change in length after expansion of the tube. T…
Who is the assignee on this patent?
Irwin Craig W, Silverman James D, Gore & Ass
What technology area does this patent fall under?
Primary CPC classification A61F2/88. Mapped technology areas include Human Necessities.
When was this patent published?
Publication date Tue Jan 20 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).