US 12,109,432 B2
Fiducial marker for oncological and other procedures
Alex Vayser, Mission Viejo, CA (US); Sunny Mitchell, Westport, CT (US); Henry Jay Lee, Chappaqua, NY (US); and Joseph Guido, San Francisco, CA (US)
Assigned to Videra Surgical Inc., San Francisco, CA (US)
Filed by Videra Surgical Inc., San Francisco, CA (US)
Filed on Jul. 20, 2023, as Appl. No. 18/355,984.
Application 18/355,984 is a continuation of application No. 18/166,393, filed on Feb. 8, 2023, granted, now 11,819,709.
Application 18/166,393 is a continuation of application No. 17/817,115, filed on Aug. 3, 2022, granted, now 11,602,642.
Application 17/817,115 is a continuation of application No. 16/791,410, filed on Feb. 14, 2020, granted, now 11,464,998.
Claims priority of provisional application 62/943,464, filed on Dec. 4, 2019.
Claims priority of provisional application 62/805,595, filed on Feb. 14, 2019.
Prior Publication US 2023/0364444 A1, Nov. 16, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61N 5/10 (2006.01); A61B 90/00 (2016.01); G06T 7/00 (2017.01); A61B 17/00 (2006.01)
CPC A61N 5/1007 (2013.01) [A61N 5/1049 (2013.01); G06T 7/0012 (2013.01); A61B 2017/00004 (2013.01); A61B 2090/3908 (2016.02); A61B 2090/3966 (2016.02); A61B 2090/3991 (2016.02); A61N 2005/1008 (2013.01); A61N 2005/1058 (2013.01); A61N 2005/1062 (2013.01); G06T 2207/10081 (2013.01); G06T 2207/30068 (2013.01); G06T 2207/30096 (2013.01); G06T 2207/30204 (2013.01)] 31 Claims
OG exemplary drawing
 
1. A radiopaque marker device for marking a target tissue surrounding a surgical cavity formed during a surgical procedure, comprising:
a spring element disposed in a closed loop having a perimeter, the spring element comprising a first elongate flexible radiopaque filament disposed in a closed loop, wherein the spring element is observable under radiographic imaging,
wherein the spring element is configured to expand from a collapsed configuration to an expanded configuration,
wherein the radiopaque marker device is configured to be implanted into the surgical cavity during the surgical procedure,
wherein the perimeter of the closed loop is radiopaque and configured to engage the target tissue surrounding the cavity, and
wherein the radiopaque marker device is configured to move with the target tissue during movement thereof.