Pyloric valve obstructing devices and methods
US8657885B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 9, 2009 |
| Grant date | Feb 25, 2014 |
| Priority date | — |
| Expiry date | Jan 9, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/12086
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Methods, devices and systems facilitate intermittent and/or partial obstruction of a pyloric valve. Devices generally include a support portion for preventing the device from passing through the pyloric valve and a tissue engagement portion for contacting tissue adjacent the pyloric valve to obstruct the valve. Some embodiments also include a positioning member extending from the tissue engagement portion for helping position the device for obstructing the valve. A retaining member may optionally be included on the distal end of the positioning member for further maintaining a position of the device in the stomach. Some embodiments are deliverable into the stomach through the esophagus, either by swallowing or through a delivery tube or catheter. Some embodiments are fully reversible. Some embodiments self-expand within the stomach, while others are inflated or otherwise expanded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.