Extensible implantable medical lead with co-axial conductor coils
US9220890B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2009 |
| Grant date | Dec 29, 2015 |
| Priority date | — |
| Expiry date | Nov 1, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/0488
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An extensible implantable electrical lead includes a lead body having a proximal end and a distal end. The lead body is formed of a polymeric material that is extensible between a first length and a second length. A plurality of electrical conductors are disposed within the lead body and extend between the proximal end and the distal end. The plurality of electrical conductors are each electrically insulated from each other and form co-axial coils between the proximal end and the distal end. The co-axial coils include an outer coil disposed about an inner coil. The inner coil has a first plurality of electrical conductors that are electrically insulated and separated from each other and have a first coil diameter. The outer coil includes a second plurality of electrical conductors that are electrically insulated and separated from each other and have a second coil diameter. The second coil diameter is greater than the first coil diameter, and the first plurality is a number less than the second plurality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.