Cardiac lead with shape-memory structure
US6002969A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 1998 |
| Grant date | Dec 14, 1999 |
| Priority date | — |
| Expiry date | Aug 5, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2001/0582
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A cardiac stimulator lead is provided that includes a lead body that has a connector for coupling to a cardiac stimulator and a flexible insulating sleeve that has a first outer diameter. An electrode is coupled to the insulating sleeve. A conductor wire is coupled between the connector and the electrode. An annular seat is coupled to the lead body and is composed of a thermally-sensitive shape-memory polymeric material whereby the seal is deformable in situ from a temporary shape with a second outer diameter to a permanent shape with a third outer diameter that is greater than the second outer diameter. A shape-memory polymeric suture sleeve may be included that can tightly clamp the lead sleeve in situ.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.