US 12,121,285 B1
Flexible boot with active electrode monitoring shield for flexible-wristed surgical devices
Gregory Jude Trudel, Broomfield, CO (US); Michael John Biggs, Denver, CO (US); David Newton, Longmont, CO (US); and Philip Schreiber, Boulder, CO (US)
Assigned to Encision Inc., Boulder, CO (US)
Filed by Encision Inc., Boulder, CO (US)
Filed on Nov. 16, 2020, as Appl. No. 17/099,013.
Application 17/099,013 is a continuation of application No. 15/594,197, filed on May 12, 2017, granted, now 10,856,930.
Claims priority of provisional application 62/335,447, filed on May 12, 2016.
Int. Cl. A61B 18/14 (2006.01); A61B 17/00 (2006.01); A61B 18/00 (2006.01); A61B 18/12 (2006.01); A61B 34/30 (2016.01); A61B 90/00 (2016.01)
CPC A61B 18/14 (2013.01) [A61B 18/1233 (2013.01); A61B 34/30 (2016.02); A61B 90/04 (2016.02); A61B 2017/00026 (2013.01); A61B 2018/00083 (2013.01); A61B 2090/0436 (2016.02)] 23 Claims
OG exemplary drawing
 
1. A boot for an electrosurgical instrument, comprising:
a first insulating layer;
a second insulating layer positioned exterior of the first insulating layer;
a boot shield at least partially positioned between the first and second insulating layers, wherein the first insulating layer is shaped and positioned to separate the boot shield from active current traveling through the electrosurgical instrument, and wherein the second insulating layer is shaped and positioned to separate the boot shield from tissue, the boot shield comprising a highly conductive medium;
and wherein the boot shield is configured to electrically couple to a conductive pathway;
and wherein stray energy couples to the boot shield via the conductive pathway comprising a combination of a first element and a second element.