Method and apparatus for determining volume of a vessel
US8521249B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 22, 2008 |
| Grant date | Aug 27, 2013 |
| Priority date | — |
| Expiry date | Oct 3, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/6853
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus for determining the volume of a pouch formed in a stomach during bariatric surgery comprises a balloon catheter having an inflatable balloon located at a distal end of a catheter for locating in the stomach. A pair of spaced apart stimulating electrodes are located on the catheter within the balloon and a plurality of spaced apart sensing electrodes are located on the catheter between the stimulating electrodes. The balloon in the stomach is inflated by a saline solution to define the interior of the pouch. By applying a constant current signal to the stimulating electrodes, the volume of the pouch is determined from signals read from the sensing electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.