OCCLUSION ELEMENT FOR UNWANTED OPENINGS IN THE HEART

• US 20090281567A1
• Filed: 05/07/2009
• Published: 11/12/2009
• Est. Priority Date: 05/07/2008
• Status: Abandoned Application

• Current Assignee: Peter Osypka Stiftung Stiftung Des Burgerlichen Rechts
• Original Assignee: Peter Osypka Stiftung Stiftung Des Burgerlichen Rechts
• Inventors: Osypka, Peter
• Application Number:
  US12/436,841
• Publication Number:
  US 20090281567A1
• Time in Patent Office: Days
• US Class Current: 606/215
• CPC Class Codes: A61B 17/0057 Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect sutures A61B17/04; closing rectum or urethra near body surface A61F2/0009
• CPC Class Codes: A61B 2017/00575 for closure at remote site, e.g. closing atrial septum defects
• CPC Class Codes: A61B 2017/00606 Implements H-shaped in cross-section, i.e. with occluders on both sides of the opening
• CPC Class Codes: A61B 2017/00623 Introducing or retrieving devices therefor

Abstract

An occlusion element (1) for closing an unwanted opening in the heart having two occlusion disks (3) formed from a braid of threads (2) is provided, wherein the threads (2) and the braid of these occlusion disks are each held by a sleeve or holder (5) and (6). The two occlusion disks (3) are initially separate and can be connected with their respective holders (5) and (6), which are oriented toward each other for forming the final shape of the occlusion element (1). The holders (5) and (6) form a spacing between the two occlusion disks (3) and a region (4) with reduced radial dimensions relative to the occlusion disks (3), and provide an arrangement where there are no projecting holders for the braid or threads on the outsides or end faces of the occlusion element (1) and the occlusion disks (3).

Claims

1. Occlusion element (1) for unwanted openings in the heart or for atrial-septal defects (ASD), comprising two occlusion disks (3) formed or braided from threads (2) made from at least one of biocompatible metal, biocompatible plastic, absorbable plastic, memory-material threads, memory-plastic threads, Nitinol wires, or wires or threads sheathed with plastic, a region (4) of reduced radial dimensions is defined between the disks (3) and is adapted to pass through the opening in the heart in the position of use and the occlusion disks (3) are adapted to grip over the edges of the unwanted opening in the heart on both sides in the position of use, the occlusion disks (3) each have a holder (5, 6) that fixes the threads (2) that extend radially and form the disks on one side that projects from the occlusion disk (3), the holders (5, 6) are connected to each other to form a space between the two occlusion disks (3) and form the region (4) with the reduced radial dimensions in the position of use, the holder (5) of a first one of the occlusion disks (3) has an axial opening, recess or depression (9) that faces outward and in which a projection (10) of the holder (6) of a second one of the occlusion disks (3) can be inserted and connected, the projection (10) of the holder (6) of the second occlusion disk is held with at least one of a positive fit, a threaded connection, or a welded connection in the opening, recess or depression (9) of the holder (5) of the first occlusion disk, at least one of the holders has a coupling point or opening (7) facing away from a connection point with the other holder (3) for the detachable engagement of an insertion instrument (8), and the coupling point or opening (7) has a complementary thread to a counter thread of the insertion instrument (8).

2. Occlusion element according to claim 1, wherein the holder (6) of at least one of the occlusion disks (3) has the coupling point or opening (7) facing away from the connection point to the holder (5) of the other occlusion disk (3) for connecting to the insertion instrument (8), and a width of the threads (2) or mesh of the braid of the occlusion disk (3) opens or leaves a passage for the insertion instrument (8).

3. Occlusion element according to claim 1, wherein the holders (5, 6) facing each other in the position of use of the two disks (3) are connected to each other in a load-resistant manner.

4. Occlusion element according to claim 1, wherein the axial opening, recess or depression (9) of the holder (5) of the first occlusion disk (3) has internal threading and the matching projection (10) of the holder (6) of the second occlusion disk (3) has a matching threaded piece or external threading for a mutual threaded engagement of the two holders (5, 6).

5. Occlusion element according to claim 1, wherein the coupling point or opening (7) for the insertion instrument (8) is provided on the holder (6) of the second occlusion disk that carries the projection (10) for coupling with the holder (5) of the first occlusion disk (3).

6. Occlusion element according to claim 1, wherein outer contours of at least one of the occlusion disks (3) is circular.

7. Occlusion element according to claim 1, wherein the two occlusion disks (3) are of equal size.

8. Occlusion element according to claim 1, wherein the occlusion disk (3) adapted for placement in the right atrium has a smaller number of threads (2) or wires than the occlusion disk (3) for the left atrium.

9. Occlusion element according to claim 1, wherein outer contours of at least one of the occlusion disks (3) is non-circular.

10. Occlusion element according to claim 1, wherein the occlusion disk (3) to be arranged in the right atrium is smaller than the other occlusion disk (3).