US 12,268,599 B2
Delivery systems for prosthetic heart valve
Michael C. Murad, Lake Mathews, CA (US); and Michael R. Bialas, Lake Forest, CA (US)
Assigned to EDWARDS LIFESCIENCES CORPORATION, Irvine, CA (US)
Filed by Edwards Lifesciences Corporation, Irvine, CA (US)
Filed on Jun. 8, 2021, as Appl. No. 17/341,844.
Application 17/341,844 is a continuation of application No. PCT/US2019/064479, filed on Dec. 4, 2019.
Claims priority of provisional application 62/778,159, filed on Dec. 11, 2018.
Prior Publication US 2021/0290387 A1, Sep. 23, 2021
Int. Cl. A61F 2/24 (2006.01); A61F 2/958 (2013.01)
CPC A61F 2/2433 (2013.01) [A61F 2/2436 (2013.01); A61F 2/958 (2013.01); A61F 2002/9583 (2013.01); A61F 2250/0098 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A delivery apparatus, comprising:
a handle;
a first annular shaft extending from the handle, the first shaft having a proximal end portion coupled to the handle and a distal end portion, wherein the first shaft has a lumen for receiving a guidewire;
a second annular shaft extending coaxially over the first shaft and having a proximal end portion coupled to the handle and a distal end portion;
a shoulder coupled to the distal end portion of the second shaft, the shoulder having a flared end portion configured to abut a prosthetic valve positioned around the first shaft in a radially compressed state;
an extension portion extending distally from the shoulder, the extension portion having a proximal end and a distal end, wherein the proximal end is connected to the shoulder; and
at least one radiopaque marker disposed on the extension portion at a location within the prosthetic valve when the prosthetic valve is in a radially compressed configuration on the first shaft.