RETRIEVABLE ACCESS VALVE

Medical devices and methods for making and using medical devices are disclosed. An example medical device may include an access valve that may be retrieved after implantation. The access valve may include a frame having a lumen, a self-expandable member extending through the lumen, and an elastic membrane extending through the lumen and a second end of the frame to releasably seal the lumen. The access valve may releasably attach to a wall of a patient and releasably seal an opening through the wall. The access valve may be attached to the wall by placing the frame adjacent the wall, extendingthe self-expandable member through the opening in the wall, and expanding the self-expandable member such that the self-expandable member applies a first force against the wall and a second force opposite the first force against the frame to sandwich the wall between the self-expandable member and the frame. 本发明公开了医疗装置及制造和使用医疗装置的方法。一种示例医疗装置可包括接入阀，其可在植入后取回。接入阀可包括具有腔的框架、延伸通过所述腔的可自扩张构件以及延伸通过所述腔和框架的第二端以可释放地密封所述腔的弹性膜。接入阀可释放地附