US 12,127,960 B2
Expandable sheath
Eran Goldberg, Nesher (IL); Noa Axelrod Manela, Netanya (IL); Yair A. Neumann, Moshav Sede Varburg (IL); Boaz Manash, Givat Ada (IL); David Maimon, Atlit (IL); Eyal Leiba, N. Misgav (IL); Ralph Schneider, Trabuco Canyon, CA (US); and Liron Tayeb, Peduel (IL)
Assigned to EDWARDS LIFESCIENCES CORPORATION, Irvine, CA (US)
Filed by Edwards Lifesciences Corporation, Irvine, CA (US)
Filed on Feb. 16, 2022, as Appl. No. 17/673,601.
Application 17/673,601 is a continuation of application No. 16/378,417, filed on Apr. 8, 2019, granted, now 11,273,062.
Claims priority of provisional application 62/722,958, filed on Aug. 26, 2018.
Claims priority of provisional application 62/655,059, filed on Apr. 9, 2018.
Prior Publication US 2022/0168125 A1, Jun. 2, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61F 2/966 (2013.01); A61F 2/24 (2006.01); A61F 2/95 (2013.01); A61M 25/00 (2006.01); B29D 23/00 (2006.01); A61F 2/958 (2013.01); A61F 2/962 (2013.01); A61M 29/00 (2006.01); B29K 105/08 (2006.01)
CPC A61F 2/966 (2013.01) [A61F 2/2436 (2013.01); A61F 2/9526 (2020.05); A61M 25/0012 (2013.01); A61M 25/0023 (2013.01); B29D 23/00 (2013.01); A61F 2/9517 (2020.05); A61F 2/9522 (2020.05); A61F 2002/9583 (2013.01); A61F 2002/9623 (2020.05); A61F 2002/9665 (2013.01); A61F 2250/001 (2013.01); A61M 2025/0024 (2013.01); A61M 25/0045 (2013.01); A61M 25/005 (2013.01); A61M 25/0074 (2013.01); A61M 29/00 (2013.01); A61M 2205/0216 (2013.01); B29K 2105/0827 (2013.01)] 23 Claims
OG exemplary drawing
 
1. An expandable sheath for deploying a medical device, comprising:
a first polymeric layer;
a braided layer disposed radially outward of the first polymeric layer, wherein the braided layer comprises a plurality of filaments braided together, wherein at least a portion of the plurality of filaments of the braided layer form loops at a distal end of the braided layer;
a second polymeric layer disposed radially outward of the braided layer and bonded to the first polymeric layer such that the braided layer is encapsulated between the first and second polymeric layers such that the plurality of filaments of the braided layer are movable between the first and second polymeric layers to allow the braided layer to radially expand as a medical device is passed through the sheath;
wherein when the medical device is passed through the sheath, a diameter of the sheath expands from a first diameter to a second diameter around the medical device while the first and second polymeric layers resist axial elongation of the sheath such that a length of the sheath remains substantially constant; and
wherein the sheath resiliently returns to the first diameter by radial force applied by the second polymeric layer upon passage of the medical device.