Coated Article
US-2016017134-A1 · Jan 21, 2016 · US
Stent made from an ultra high molecular weight bioabsorbable polymer with high fatigue and fracture resistance
US9492587B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9492587-B2 |
| Application number | US-42278309-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 13, 2009 |
| Priority date | Apr 13, 2009 |
| Publication date | Nov 15, 2016 |
| Grant date | Nov 15, 2016 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A stent made from an ultra high molecular weight bioabsorbable polymer is disclosed herein. The bioabsorbable polymer can have a Mw greater than 1 million g/mole or greater than 2 million g/mole. Methods of making the ultra high molecular weight polymer stent without degrading the molecular weight are further disclosed.
First claim
Opening claim text (preview).
What is claimed is: 1. A stent comprising a scaffolding including a plurality of structural elements comprising: an abluminal layer and a luminal layer; wherein one of the layers is an ultra high molecular weight (UHMW) layer made from an UHMW bioabsorbable polymer having a weight average molecular weight greater than 1 million g/mole, and wherein the other layer is a low molecular weight (LMW) layer made from a LMW bioabsorbable polymer having a weight average molecular weight of between 50,000-300,000 g/mole. 2. The stent of claim 1 , wherein the UHMW bioabsorbable polymer and the LMW polymer are poly(L-lactide). 3. The stent of claim 1 , wherein a ratio of the thicknesses of the UHMW layer to the LMW layer is between 1000:1 and 2:1. 4. The stent of claim 1 , wherein the LMW layer includes a therapeutic substance dispersed within the LMW bioabsorbable polymer. 5. The stent of claim 1 , wherein sidewalls of the structural elements are free of material different from the UHMW layer and the LMW layer.
Assignees
Inventors
Classifications
Stent-grafts · CPC title
Joints · CPC title
Biologically active materials, e.g. therapeutic substances {(A61L31/047 takes precedence)} · CPC title
Coatings · CPC title
- A61L31/06Primary
obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds {(A61L31/041 takes precedence)} · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9492587B2 cover?
- A stent made from an ultra high molecular weight bioabsorbable polymer is disclosed herein. The bioabsorbable polymer can have a Mw greater than 1 million g/mole or greater than 2 million g/mole. Methods of making the ultra high molecular weight polymer stent without degrading the molecular weight are further disclosed.
- Who is the assignee on this patent?
- Kleiner Lothar W, Abbott Cardiovascular Systems Inc
- What technology area does this patent fall under?
- Primary CPC classification A61L31/06. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Nov 15 2016 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).