Magnetically coupled implantable pump system and method
US9226840B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 3, 2010 |
| Grant date | Jan 5, 2016 |
| Priority date | — |
| Expiry date | Oct 18, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F5/0053
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A magnetically coupled, implantable pump system comprises an external controller and an implantable device. A non-implantable magnet in an external controller produces a magnetic field that couples the non-implantable magnet to a magnet in the implantable device. A non-implantable motor moves the non-implantable magnet in a rotational direction. When the non-implantable magnet moves in the rotational direction, a piston coupled to the magnet moves within the implantable device. As the piston moves, an amount of fluid from a reservoir in the implantable device moves out of the reservoir and into an inflatable portion of a gastric band. The implantable device may also move fluid out of the inflatable portion of the gastric band.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.