Biodegradable double-j stent and method of manufacturing the same
US-2024299197-A1 · Sep 12, 2024 · US
Polymeric, degradable drug-eluting stents and coatings
US8961591B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8961591-B2 |
| Application number | US-200913057974-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 17, 2009 |
| Priority date | Aug 7, 2008 |
| Publication date | Feb 24, 2015 |
| Grant date | Feb 24, 2015 |
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Abstract
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Absorbable stents and absorbable stent coatings have been developed with improved properties. These devices preferably comprise biocompatible copolymers or homopolymers of 4-hydroxybutyrate, and optionally poly-L-lactic acid and other absorbable polymers and additives. Compositions of these materials can be used to make absorbable stents that provide advantageous radial strengths, resistance to recoil and creep, can be plastically expanded on a balloon catheter, and can be deployed rapidly in vivo. Stent coatings derived from these materials provide biocompatible, uniform coatings that are ductile, and can be expanded without the coating cracking and/or delarmnating and can be used as a coating matrix for drug incorporation.
First claim
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We claim: 1. A biocompatible stent comprising a base coat adhered to the stent, and optionally a top coat, wherein the stent has a radial recoil of less than 10%, is expandable rapidly in viva using a balloon pressure of 4 to 16 bar without cracking of the stent or stent base coat, or other mechanical failure, does not exhibit any significant creep at 100 mmHg for 7 days, does not shorten significantly upon expansion; and has struts, constructed with smooth strut edges wit…
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Human Necessities · mapped topic
Human Necessities · mapped topic
Chemistry & Metallurgy · mapped topic
Human Necessities · mapped topic
Human Necessities · mapped topic
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- What does patent US8961591B2 cover?
- Absorbable stents and absorbable stent coatings have been developed with improved properties. These devices preferably comprise biocompatible copolymers or homopolymers of 4-hydroxybutyrate, and optionally poly-L-lactic acid and other absorbable polymers and additives. Compositions of these materials can be used to make absorbable stents that provide advantageous radial strengths, resistance to…
- Who is the assignee on this patent?
- Schmitz Klaus-Peter, Behrend Detlef, Sternberg Katrin, and 4 more
- What technology area does this patent fall under?
- Primary CPC classification A61L31/18. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Feb 24 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).