Devices for retrieving a prosthesis

摘要

The present disclosure relates to devices and methods for implanting a prosthesis into a heart of a mammal, such as a person. The disclosure includes a prosthesis that acts as a pressure vent between the left and right atria of the heart. The disclosure also includes a mounting tool for mounting the prosthesis onto a loading tool, the loading tool useful for loading the prosthesis onto a device for delivering the prosthesis into the patient's heart. Control devices and methods for using these devices are also disclosed. The intracardiac pressure vents disclosed allow sufficient flow from the left atrium to the right atrium to relieve elevated left atrial pressure and resulting patient symptoms. The devices also limit the amount of flow from the right atrium to the left atrium to minimize the potential for thrombi or other embolic material from entering arterial circulation.

主权项

1. A method of retrieving an atrial septal device implanted within a mammal, the method comprising:
advancing a retrieval device within the mammal to a location proximate the atrial septal device; advancing a grasper and grasping the atrial septal device via at least two retrieval legs of the atrial septal device, the at least two retrieval legs joined at a first end of each leg for retrieval at a retrieval portion, second ends of the at least two retrieval legs also extending from respective distal ends of respective flange segments of a flange of the atrial septal device, the flange segments each comprising two struts formed integrally with and directly connected to and extending radially inward from the second end of one of the retrieval legs to an open central core; withdrawing the at least two retrieval legs proximally with the grasper, thereby collapsing the flange of the atrial septal device; and retracting the atrial septal device into a sheath.