Medical lead and method of making and using with sodium sulfosuccinic ester
US5931862A · kind A · utility
83Cited by
17References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 22, 1997 |
| Grant date | Aug 3, 1999 |
| Priority date | — |
| Expiry date | Dec 22, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/0563
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A continuous sheath of open-celled porous plastic, preferably ePTFE, is used on the outside of a medical lead, extending along the lead body and the electrodes. Because the plastic is open-celled, when the pores are filled with saline, the lead can deliver electrical energy through the pores in the plastic. Pore size is chosen to discourage tissue ingrowth while allowing for defibrillation energy delivery and electrical signals through it. The porous plastic has a biocompatible wetting agent applied to it to speed the process of filling the pores with saline.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.