A device for plugging an opening such as in a wall of a hollow or tubular organ

Abstract

An implant for occluding a passage in a circulatory system is provided. The implant in one form includes a plurality of thin wire-like members each having a proximal and a distal end and a first holder to which the distal ends of the members are attached. The proximal ends of the members are attached to a second holder. The implant includes an expansible occluding body attached to the members at a point intermediate the first and second holders. A carrier rod is releasably attached to the first holder and upon which the second holder is slidably received. A driving implement is located on the carrier rod, the driving implement contacting the second holder and movable toward the first holder along the carrier rod. The members are attached to the first and second holders in a manner to cause the members to execute a twisting motion relative to the longitudinal axis to yield a plurality of generally radially extending loops combining to form a first fixation structure adjacent the distal face of the occluding body, and a second fixation structure of generally radially extending loops adjacent the proximal face of the occluding body. In another form, the implant includes a balloon structure which is expanded from within by a spring-like mechanism in situ, or by the foregoing radially extending loop mechanism.

Description

[0001] Application history [0002] This application is a continuation of U.S. Patent Serial No. 09 / 180379, filed November 6, 1998, which claims PCT / SE97 / 00747, filed May 6, 1997, and Swedish Patent, filed May 8, 1996 Priority of 9601752-0. technical field [0003] The present invention generally relates to an implant device for closing a passage or channel in the body, such as a hole through the atrial and ventricular septum of the heart, and in particular comprises a blocking or closing body which can be inserted into the Swells and holds in place at blocked / occluded channel areas. Background technique [0004] The embodiment of patent EP B1 0362113 shows a device for closing a passage in a patient's heart, wherein the closure part risks being lifted, thereby exposing the passage through the heart. The reason for the unreliable closure performance is the relatively loose manipulation of the closure member when applied around the channel and the long time required for the...

AI Technical Summary

Problems solved by technology

The reason for the unreliable sealing performance is the relatively loose manipulation of the sealing member when applied around the channel, and the fact that the application process takes a long time before it reaches its final position around the channel in the heart

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