US 12,337,133 B2
Access closure device
Aaron M. Fortson, Fremont, CA (US); and Stephen D. Pacetti, San Jose, CA (US)
Assigned to Abbott Cardiovascular Systems, Inc., Santa Clara, CA (US)
Filed by Abbott Cardiovascular Systems, Inc., Santa Clara, CA (US)
Filed on Nov. 12, 2021, as Appl. No. 17/524,889.
Claims priority of provisional application 63/114,214, filed on Nov. 16, 2020.
Prior Publication US 2022/0152372 A1, May 19, 2022
Int. Cl. A61M 39/02 (2006.01); A61M 25/10 (2013.01)
CPC A61M 39/0247 (2013.01) [A61M 25/1002 (2013.01); A61M 25/10182 (2013.11); A61M 25/10186 (2013.11); A61M 2025/1054 (2013.01); A61M 2039/0258 (2013.01); A61M 2039/0288 (2013.01); A61M 2039/0297 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An access closure device comprising:
a balloon delivery system comprising:
a balloon;
a balloon segment supporting the balloon, the balloon segment having a lumen and a plurality of openings in fluid communication with an interior of the balloon and the lumen;
at least one valve selectively sealing the lumen of the balloon segment;
an extension portion proximate the at least one valve, the extension portion configured to releasably couple the balloon segment to a portion of the balloon delivery system; and
a delivery shaft configured to releasably couple to the extension portion the delivery shaft and the extension portion each being formed of materials having a coefficient of friction, wherein when a first force is configured to be exerted in a direction transverse to a longitudinal axis of the delivery shaft by a tissue tract through which the balloon delivery system passes, contact is configured to be maintained between the extension portion and the delivery shaft,
wherein, once inflated within a body lumen, the balloon is configured to remain inside at least a portion of the body lumen.