发明名称 |
PYLORIC VALVE OBSTRUCTING DEVICES AND METHODS |
摘要 |
Methods, devices and systems facilitate intermittent and/or partial obstruction of a pyloric valve. Devices generally include a support portion (16) 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 (210) may optionally be included on the distal end of the positioning member for further maintaining a position of the device in the stomach (74). Some embodiments are deliverable into the stomach through the esophagus (78), either by swallowing or through a delivery tube or catheter (8). Some embodiments are fully reversible. Some embodiments self-expand within the stomach, while others are inflated or otherwise expanded. |
申请公布号 |
CA2534118(C) |
申请公布日期 |
2011.09.13 |
申请号 |
CA20042534118 |
申请日期 |
2004.07.20 |
申请人 |
POLYMORFIX, INC. |
发明人 |
BURNETT, DANIEL R.;HALL, GREG;RICHMAN, ROXANNE;GALLUP, DAVID A.;CAMPBELL-WHITE, ANNETTE |
分类号 |
A61F2/04;A61B5/03;A61B5/07;A61B17/04;A61B17/08;A61B17/12;A61F;A61F2/02;A61F2/82;A61F5/00 |
主分类号 |
A61F2/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|