| 摘要 |
<p>An endoscopic tissue apposition device (100) that includes a vacuum chamber (130) 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 (115) and vacuum (120) 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 (140) is disposed on a proximal side of the vacuum chamber and is longitudinally advanceable into and across the vacuum chamber, while a punch needle (150) is disposed on a distal side of the vacuum chamber and is configured to receive the carrier needle therein. A hold and release mechanism (170) holds and releases the punch needle (150) to facilitate joining portions of tissue together.</p> |
