Occluder

• US 20140155932A1
• Filed: 05/15/2012
• Published: 06/05/2014
• Est. Priority Date: 05/17/2011
• Status: Active Grant

• Current Assignee: Carag AG
• Original Assignee: Carag AG
• Inventors: Bernhard, Jerome, Weishaupt, Andreas
• Granted Patent: US 9,649,097 B2
• Time in Patent Office: Days
• US Class Current: 606/200
• 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 17/12109 in a blood vessel
• CPC Class Codes: A61B 2017/00575 for closure at remote site, e.g. closing atrial septum defects
• CPC Class Codes: A61B 2017/00592 Elastic or resilient implements
• CPC Class Codes: A61B 2017/00597 Implements comprising a membrane
• 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 2017/00619 Locking means for locking the implement in expanded state

Abstract

An Occluder for occluding a passage in a circulatory system comprises at least one occluding body (4), for occluding the passage, an expanding unit (1) comprising at least one fixation structure for fixing the occluding body (4, 5) within the passage, wherein at least a part of the expanding unit (1) is expanding into said fixation structure thereby expanding the occluding body and a locking unit (2, 3) for locking the expanding unit (1) in its expanded state. The expanding unit (1) comprises a first and a second end and wherein the first end is attached to a first element of the locking unit (2, 3) and the second end is attached to a second element of the locking unit (2, 3), the first and second elements of the locking unit (2, 3) being brought in locking engagement with each other when the occluding body (4, 5) is expanded, wherein the occluder further comprises a jacket (6, 7) which envelops at least a part of the expanding unit (1). This occluder ensures that no parts of the occluder can wander within the human or animal body and enhances the growth of the body tissue over the occluder.

Claims

1. Occluder for occluding a passage in a circulatory system, the occluder comprising at least one occluding body for occluding the passage,

an expanding unit comprising at least one fixation structure for fixing the occluding body within the passage, wherein at least a part of the expanding unit is expanding into said fixation structure thereby expanding the occluding body and

a locking unit for locking the expanding unit in its expanded state,

wherein the expanding unit comprises a first and a second end and wherein the first end is attached to a first element of the locking unit and the second end is attached to a second element of the locking unit, the first and second elements of the locking unit being brought in locking engagement with each other when the occluding body is expanded,

wherein the occluder further comprises a jacket which envelops at least a part of said expanding unit.

2. Occluder according to claim 1 wherein the at least one occluding body is penetrated by the elongate member.

3. Occluder according to claim 1 wherein the jacket is attached to the at least one occluding body.

4. Occluder according to claim 1 wherein the jacket envelops at least one of said fixation unit.

5. Occluder according to claim 1 wherein the occluder comprises exactly two fixation structures and two outer jackets, each jacket enveloping one of the fixation structures.

6. Occluder according to claim 1 wherein the occluder comprises exactly a first and a second occluding body, wherein in a non-expanded state the first and second occluding bodies are arranged at a distance from each other, wherein a first of said fixation structures is arranged between the first occluding body and the first element of the locking unit and a second of said fixation structures is arranged between the second occluding body and the second element of the locking unit.

7. Occluder according to claim 1 wherein the at least one occluding body is a flexible sheet.

8. Occluder according to claim 1 wherein the expanding unit comprises a plurality of elongate members with first and second ends each, wherein the first end of each elongate member is attached to a first element of the locking unit and the second end of each elongate member his attached to a second element of the locking unit and wherein these elongate members are twisted to form the at least one fixation structure.

9. Occluder according to claim 1 wherein the expanding unit his movable relative to the enveloping jacket.

10. Occluder according to claim 8 wherein the jacket is surrounding a multiple of elongate members and wherein the jacket is attached to at least some of the elongate members, wherein the elongate members comprise a longitudinal axis each and wherein the elongate members can move relative to the jacket direction of their corresponding longitudinal axis.

11. Occluder according to claim 10 wherein the sheath is sewed on at least some of the longitudinal members.

12. Occluder according to claim 1 wherein the fixation structure is expanded within the jacket.

13. Occluder according to claim 1 wherein the occluding body has a circumferential rim and wherein the jacket is fixed to the occluding body at a distance to this rim.

14. Occluder according to claim 1 wherein the jacket is made of a flexible material and wherein the jacket is compressible into a folded state.

15. Occluder according to claim 8 wherein a multiple of jackets are present which envelop at least a part of the expanding unit and wherein each elongate member is enveloped in a separate of said jackets.

16. Occluder according to claim 1 wherein the occluder comprises exactly two fixation structures and two occluding bodies expanded by said fixation structures and wherein the elongate members are enveloped individually at least along their length extending between the two occluding bodies.