CA2288044A1 - Variable expansion force stent - Google Patents

Variable expansion force stent Download PDF

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Publication number
CA2288044A1
CA2288044A1 CA002288044A CA2288044A CA2288044A1 CA 2288044 A1 CA2288044 A1 CA 2288044A1 CA 002288044 A CA002288044 A CA 002288044A CA 2288044 A CA2288044 A CA 2288044A CA 2288044 A1 CA2288044 A1 CA 2288044A1
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CA
Canada
Prior art keywords
force
stent
elements
varying
less
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002288044A
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French (fr)
Other versions
CA2288044C (en
Inventor
Jon P. St. Germain
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Boston Scientific Ltd Bermuda
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Individual
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Publication of CA2288044A1 publication Critical patent/CA2288044A1/en
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Publication of CA2288044C publication Critical patent/CA2288044C/en
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Expired - Fee Related legal-status Critical Current

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    • A61F2250/0039—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in diameter

Abstract

A stent having varying outward radial force along its length. In use, the stent can provide greater force in vessel regions requiring greater force and less force in regions requiring less. In particular, more force is provided in the narrowed, center of a stenosis, while not applying too much force to the adjoining healthy tissue area. Greater stent expansion is provided in wider vessel geometries and less stent expansion in narrower regions. Varying force is achieved varying the number of elements, the density of elements, and the thickness of the elements.
CA002288044A 1997-05-22 1998-05-21 Variable expansion force stent Expired - Fee Related CA2288044C (en)

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US08/861,798 US5836966A (en) 1997-05-22 1997-05-22 Variable expansion force stent
US08/861,798 1997-05-22
PCT/US1998/010415 WO1998052497A2 (en) 1997-05-22 1998-05-21 Variable expansion force stent

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JP (2) JP2002500533A (en)
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CA (1) CA2288044C (en)
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WO (1) WO1998052497A2 (en)

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