Biocompatible medical devices with polyurethane surface
US6774157B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 25, 2001 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | Dec 15, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2375/04
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system for improving the biocompatibility of medical devices present within a patient's body. In one embodiment, the present subject matter reduces the thrombogenicity of polyurethane materials in contact with the blood of a patient. In one embodiment, the medical device has a polymeric wall and a coating of polyurethane, said coating of polyurethane having the same chemical composition throughout the thickness and displaying an antithrombogenic effect when inserted into a patient's body in contact with blood for a period of at least twenty-four hours. The present subject matter relates to the manufacture and treatment of polymeric materials that may be inserted as medical devices, accessories, implants or replacements into animal bodies, such as the human body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.