Medical devices with aromatic polyimide coating
US7627382B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 25, 2005 |
| Grant date | Dec 1, 2009 |
| Priority date | — |
| Expiry date | Jan 16, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/09091
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Medical devices that include on at least some portion thereof an aromatic polyimide of the structure:wherein R is a tetravalent aromatic radical, preferably containing at least one ring of six carbon atoms, said ring characterized by benzenoid unsaturation, the four carbonyl groups being attached directly to separate carbon atoms in a ring and each pair of carbonyl groups being attached to adjacent carbon atoms in a ring of the R radical; and wherein R′ is a divalent benzenoid radical selected from the group consisting ofwherein R″ is selected from the group consisting of an alkylene chain having 1-3 carbon atoms,R′″ and R″″ are selected from the group consisting of alkyl and aryl.In one embodiment the medical device is a coated lead body.Coated guide wires are a further embodiment.Methods of application are a further embodiment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.