US 12,408,917 B2
Methods and devices for valve clip excision
Alex Khairkhahan, Palo Alto, CA (US)
Assigned to EVALVE, INC., Santa Clara, CA (US)
Filed by Evalve, Inc., Santa Clara, CA (US)
Filed on Jun. 30, 2020, as Appl. No. 16/916,754.
Application 16/916,754 is a division of application No. 15/642,245, filed on Jul. 5, 2017, granted, now 10,736,632.
Claims priority of provisional application 62/418,571, filed on Nov. 7, 2016.
Claims priority of provisional application 62/359,121, filed on Jul. 6, 2016.
Prior Publication US 2020/0323528 A1, Oct. 15, 2020
Int. Cl. A61B 17/10 (2006.01); A61B 17/128 (2006.01); A61B 17/32 (2006.01); A61B 17/3205 (2006.01); A61B 18/14 (2006.01); A61B 17/00 (2006.01); A61B 17/08 (2006.01); A61B 17/22 (2006.01); A61B 18/00 (2006.01); A61F 2/24 (2006.01)
CPC A61B 17/10 (2013.01) [A61B 17/1285 (2013.01); A61B 17/320016 (2013.01); A61B 17/3205 (2013.01); A61B 18/1492 (2013.01); A61B 2017/00243 (2013.01); A61B 2017/00358 (2013.01); A61B 2017/00783 (2013.01); A61B 2017/00876 (2013.01); A61B 17/083 (2013.01); A61B 2017/22035 (2013.01); A61B 2017/32006 (2013.01); A61B 2018/00369 (2013.01); A61B 2018/00601 (2013.01); A61B 2018/1407 (2013.01); A61B 2018/144 (2013.01); A61F 2/246 (2013.01); A61F 2/2466 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A system for excising an implanted clip approximating opposed valve leaflets in a heart valve, said system comprising:
a capture catheter configured to be introduced into a heart chamber adjacent to the valve leaflets on one side of the clip;
a transfer catheter configured to be introduced into the heart chamber adjacent to the valve leaflets on another side of the clip; and
a cutting member configured to be deployed from the transfer catheter to the capture catheter to place the cutting member against tissue of at least one of the valve leaflets to excise the clip, wherein the cutting member comprises a cutting zone formed of an uninsulated conductive member bounded by a first radiopaque marker and a second radiopaque marker.