Method for etching a micropatterned microdepot prosthesis
US6558733B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2000 |
| Grant date | May 6, 2003 |
| Priority date | — |
| Expiry date | Dec 10, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2300/622
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An implantable prosthesis, for example a stent, is provided having one or more micropatterned microdepots formed in the stent. Depots are formed in the prosthesis via chemical etching and laser fabrication methods, including combinations thereof. They are formed at preselected locations on the body of the prosthesis and have a preselected depth, size, and shape. The depots can have various shapes including a cylindrical, a conical or an inverted-conical shape. Substances such as therapeutic substances, polymeric materials, polymeric materials containing therapeutic substances, radioactive isotopes, and radiopaque materials can be deposited into the depots.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.