US 12,232,990 B2
Stents with increased flexibility
Carlos Gabriel Alvarez Cordero, Monterrey (MX); and Ernesto Lorenzo Bonet, Monterrey (MX)
Assigned to Sintra Medical LLC, Miami, FL (US)
Filed by Sintra Medical LLC, Miami, FL (US)
Filed on Jan. 23, 2023, as Appl. No. 18/158,445.
Application 18/158,445 is a continuation of application No. 17/575,595, filed on Jan. 13, 2022, abandoned.
Application 17/575,595 is a continuation of application No. PCT/US2020/042409, filed on Jul. 16, 2020.
Claims priority of provisional application 62/874,890, filed on Jul. 16, 2019.
Prior Publication US 2023/0157807 A1, May 25, 2023
Int. Cl. A61F 2/915 (2013.01); A61F 2/07 (2013.01); A61F 2/82 (2013.01)
CPC A61F 2/915 (2013.01) [A61F 2/07 (2013.01); A61F 2002/072 (2013.01); A61F 2002/077 (2013.01); A61F 2002/828 (2013.01); A61F 2002/91541 (2013.01); A61F 2002/91566 (2013.01); A61F 2002/91575 (2013.01); A61F 2230/0045 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A stent device, the device comprising:
a plurality of adjacent rings arranged transverse to a length of the device in a proximal to distal direction, wherein each ring comprises a repeating pattern of alternating flattened tops and flattened bottoms extending transverse to the length of the device, wherein the flattened tops are connected to the flattened bottoms by sigmoid-shaped intermediate sections so that each flattened top forms part of a proximal-facing U-shape and each flattened bottom forms part of a distal-facing U-shape;
a plurality of crosslink connectors connecting adjacent rings, wherein each crosslink connector connects a middle region of one of the flattened tops to a middle region of one of the flattened bottoms on an adjacent ring;
wherein the crosslink connectors form a helically winding arrangement around the length of the device, further wherein the cross-link connectors comprises: omega-shaped crosslink connectors having trans-configured L-shaped segments at each end; and
wherein the stent device has a first configuration in which the plurality of adjacent rings has a first diameter, and the stent device has a second configuration in which the plurality of adjacent rings has a second diameter that is greater than the first diameter, and wherein the flattened tops and the flattened bottoms are configured to remain parallel to each other as the stent device is expanded from the first configuration to the second configuration.