US 11,883,288 B2
Expandable sheath and methods of using the same
David Maimon, Atlit (IL); Eran Goldberg, Nesher (IL); and Liron Tayeb, Peduel (IL)
Assigned to EDWARDS LIFESCIENCES CORPORATION, Irvine, CA (US)
Filed by Edwards Lifesciences Corporation, Irvine, CA (US)
Filed on Dec. 7, 2020, as Appl. No. 17/113,268.
Application 17/113,268 is a continuation of application No. 15/636,201, filed on Jun. 28, 2017, granted, now 10,856,981.
Claims priority of provisional application 62/475,759, filed on Mar. 23, 2017.
Claims priority of provisional application 62/360,162, filed on Jul. 8, 2016.
Prior Publication US 2021/0085459 A1, Mar. 25, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61F 2/24 (2006.01); A61M 25/00 (2006.01); A61M 25/06 (2006.01)
CPC A61F 2/2436 (2013.01) [A61M 25/0023 (2013.01); A61M 25/0662 (2013.01); A61M 25/005 (2013.01); A61M 25/0045 (2013.01); A61M 2025/0024 (2013.01); A61M 2205/0216 (2013.01); A61M 2205/0266 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An expandable sheath for delivering a prosthetic device, the expandable sheath comprising:
a first layer comprising:
a first longitudinally extending spine extending parallel to a longitudinal axis of the sheath, and
a first plurality of curved arms attached to and extending away from the first longitudinally extending spine and around the longitudinal axis in a circumferential direction, and
a second layer positioned around the first layer, the second layer comprising;
a second longitudinal axis extending between a proximal end of the first layer and a distal end of the second layer,
a second longitudinally extending spine extending parallel to the longitudinal axis of the sheath, and
a second plurality of curved arms attached to and extending away from the second longitudinally extending spine and around the longitudinal axis, the second plurality of curved arms at least partially overlaying the first plurality of curved arms,
wherein longitudinal motion is restricted between the first layer and the second layer, and
wherein the second plurality of curved arms are configured to slide circumferentially along the first plurality of curved arms.