Medical device for modification of left atrial appendage and related systems and methods
Devices, methods and systems are provided for occluding an opening within the tissue of a body, such as a left atrial appendage. In one embodiment, a medical device includes an anchor portion and an occluder portion. The anchor portion includes frame segments, each anchor frame segment extending between a first end and a second end such that the second end of each anchor frame segment is coupled to an anchor hub. The occluder portion includes a hub that defines an axis. The occluder portion includes multiple occluder frame segments that extend between a proximal end and a distal end such that the proximal end of the occluder frame segments are pivotably coupled to the hub and the distal end of the occluder frame segments are pivotably coupled to the first end of the anchor frame segments.
1. A medical device for modifying a left atrial appendage of a heart, the medical device comprising:
an anchor portion including anchor frame segments, each anchor frame segment extending between a first end and a second end, the second end of each anchor frame segment coupled to an anchor hub; and
an occluder portion including a hub defining an axis, the occluder portion including multiple occluder frame segments extending between a proximal end and a distal end, the proximal end of the occluder frame segments pivotably coupled to the hub with a first eyelet, the distal end of the occluder frame segments pivotably coupled to the first end of the anchor frame segments with a second eyelet.
2. The medical device of claim 1 , wherein the anchor hub is moveable along the axis to move the anchor portion between a retracted position and a deployed position.
3. The medical device of claim 1 , wherein the anchor hub is moveable along the axis to move at least a portion of the anchor portion through the hub.
4. The medical device of claim 1 , wherein the occluder portion comprises a tissue growth member.
5. The medical device of claim 1 , wherein the occluder portion comprises at least one of a foam material and ePTFE.
6. The medical device of claim 1 , wherein the occluder frame segments and the anchor frame segments comprise a super elastic material.
7. The medical device of claim 6 , wherein the super elastic material comprises a Nitinol material.
8. A medical device for modifying a left atrial appendage of a heart, the medical device comprising:
a first hub and a second hub, the second hub movable along an axis defined by the first hub;
an occluder portion including occluder frame segments extending radially outward from a proximal end portion to a distal end portion, the proximal end portion pivotably coupled to the first hub with a first eyelet; and
an anchor portion including anchor frame segments, each anchor frame segment extending between a first end and a second end, the first end pivotably coupled to the distal end portion of the occluder portion with a second eyelet, the second end coupled to the second hub.
9. The medical device of claim 8 , wherein the first hub comprises a first sleeve and a second sleeve, the second sleeve sized to fit over the first sleeve.
10. The medical device of claim 8 , wherein the first hub comprises fingers extending therefrom, the fingers being configured to couple to the first eyelet.
11. The medical device of claim 8 , wherein the second hub is moveable relative to the first hub and along the axis between a retracted position and a deployed position.
12. The medical device of claim 8 , wherein the second hub is moveable along the axis to move at least a portion of the anchor portion through the first hub.
13. The medical device of claim 8 , wherein the occluder portion comprises ePTFE material positioned therewith.
14. The medical device of claim 8 , wherein the occluder portion comprises a tissue growth member positioned therewith.
15. The medical device of claim 8 , wherein the occluder frame segments and the anchor frame segments comprise a super elastic material.
16. A medical device for modifying a left atrial appendage of a heart, the medical device comprising:
a first hub having a first hub part and a second hub part, the second hub part having fingers extending therefrom, the second hub part coupled to the first hub part so that the fingers abut against a backstop of the first hub part;
a second hub movable along an axis defined by the first hub;
a framework extending radially outward and distally from the first hub and extending radially inward to the second hub, the framework pivotably coupled to the fingers of the first hub with first eyelets defined in and adjacent a proximal end portion of the framework.
17. The medical device of claim 16 , wherein the framework comprises an occluder portion and an anchor portion, the anchor portion moveable between a retracted position and a non-retracted position to anchor and deploy the framework to the left atrial appendage.
18. The medical device of claim 16 , wherein the framework comprises a tissue growth member, the tissue growth member positioned over at least a proximal side of the framework.
19. The medical device of claim 16 , wherein the framework comprises an occluder portion and an anchor portion, the anchor portion extending between a first end and a second end, the first end being pivotably coupled to a distal end portion of the occluder portion with second eyelets, the second end of the anchor portion coupled to the second hub.
20. The medical device of claim 16 , wherein the framework, along a distal side thereof, extends radially inward and proximally toward the second hub.