Back to results
US 12,690,868 B2Granted
Closing device for tissue openings
AssigneeMuffin Incorporated
InventorsGregory James Hardy, Shaun Davis Gittard, John C. Sigmon, Jr., William J. Havel, Jeremy T. Newkirk, Neal E. Fearnot, Rita Hadley
Life of this patent
Estimating the term…
Abstract
There are shown and described embodiments of a closure device for closing holes in tissue, for example in the right atrial appendage. The closure device in particular embodiments includes first and second mesh closure members and a tether or stem connecting them. Embodiments of a delivery device for the closure device are also described.
Claims21
A closure for an opening in tissue, the closure comprising:
- a first proximal closure element comprising a first mesh enclosure, the first mesh enclosure being formed from a first bioresorbable material, the first mesh enclosure having a first proximal narrowed end, and a second distal narrowed end;
- a second distal closure element comprising a second mesh enclosure, the second mesh enclosure being formed from the first bioresorbable material, the second mesh enclosure having a third proximal narrowed end and a fourth distal narrowed end, wherein the third narrowed end is inverted so as to be within a central volume of the second closure element;
- a tether joining the first and second closure elements, the tether having a fixed connection to the fourth distal narrowed end of the second closure element and passing through the first proximal narrowed end, wherein the first proximal closure element is freely slidable along the tether to adjust its position relative to the second distal closure element;
- a proximal marker positioned at the first proximal narrowed end;
- a distal marker positioned at the fourth distal narrowed end, and wherein the proximal marker and the distal marker are configured to allow for visualization of the proximal and the distal marker through patient tissue;
- and
- a material sheet composed of a second bioresorbable material different from the first bioresorbable material, positioned between the first proximal closure element and the second distal closure element and configured to contact patient tissue around the opening, wherein the material sheet is affixed to the distal closure element and positioned over the third narrowed end.
4 more elements
A method of closing an opening in the right atrial appendage of a patient, the method comprising:
- advancing a placement device through a delivery sheath, the delivery sheath having a distal end positioned on a distal side of the opening, the placement device comprising a fluid pathway extending to a distal end of said placement device, an inner tubular member within an outer tubular member, and a closure device, the closure device comprising:
- a first closure element comprising a first mesh enclosure, the first mesh enclosure being formed from a first bioresorbable material, the first mesh enclosure having a first proximal narrowed end, and a second distal narrowed end, the first closure element contained within the outer tubular member;
- a second closure element comprising a second mesh enclosure, the second mesh enclosure being formed from the first bioresorbable material, the second mesh enclosure having a third proximal narrowed end and a fourth distal narrowed end, wherein the third narrowed end is inverted so as to be within a central volume of the second closure element, the second closure element contained within the inner tubular member;
- and
- a tether joining the first and second closure elements, in an initial configuration prior to delivery of the closure elements to the opening, the tether having a fixed connection to the fourth distal narrowed end of the second closure element and passing through the first proximal narrowed end, wherein the first proximal closure element is freely slidable along the tether to adjust its position relative to the second distal closure element;
- a proximal marker positioned at the first proximal narrowed end;
- a distal marker positioned at the fourth distal narrowed end, and wherein the proximal marker and the distal marker are configured to allow for visualization of the proximal and the distal marker through patient tissue;
- and
- a material sheet composed of a second bioresorbable material different from the first bioresorbable material, positioned between the first closure element and the second closure element and configured to contact patient tissue around the opening, wherein the material sheet is affixed to the distal closure element and positioned over the third narrowed end;
- removing the outer tubular member;
- advancing the first closure element and material sheet from the distal end of the delivery device;
- withdrawing the delivery sheath through the opening while maintaining tension on the first closure element and material sheet against the distal side of the opening;
- advancing the second closure element from the distal end of the delivery device;
- securing the second delivery device against the proximal side of the opening;
- and
- visualizing the position of the proximal and distal markers to confirm that the closure device has sealed the opening.
13 more elements
Dependencies are inferred from the claim text.