Expandable systems for medical electrical stimulation
US7797054B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2007 |
| Grant date | Sep 14, 2010 |
| Priority date | — |
| Expiry date | Feb 21, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/0558
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A medical system for electrical stimulation includes a first column of electrodes, a second column of electrodes, an expandable member disposed between first and second columns, and an expansion mechanism adapted to transmit an externally applied pressure to the expandable member. The pressure expands the expandable member in order to force the first column of electrodes apart from the second column of electrodes. The first and second columns, disposed side-by-side, may be inserted through a percutaneous needle and into a epidural space, alongside a spinal cord; after insertion, the first column may be forced apart from the second column by applying the pressure to the expandable member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.