Endoscopic tissue apposition device and method of use
US8172857B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 9, 2005 |
| Grant date | May 8, 2012 |
| Priority date | — |
| Expiry date | Aug 14, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2217/005
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An endoscopic tissue apposition device that includes a vacuum chamber configured to securely hold a portion of tissue therein, the vacuum chamber being defined by a proximal wall and a distal wall opposite to the proximal wall. Working and vacuum channels are provided in communication with the vacuum chamber. A portion of tissue is held in the vacuum chamber when vacuum is applied in the vacuum chamber through the vacuum channel. A carrier needle is disposed on a proximal side of the vacuum chamber and is longitudinally advanceable into and across the vacuum chamber, while a punch needle is disposed on a distal side of the vacuum chamber and is configured to receive the carrier needle therein. A hold and release mechanism holds and releases the punch needle to facilitate joining portions of tissue together.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.