US 12,220,218 B2
Catheter contact force sensor
Corey M. Rousu, Huntington Beach, CA (US); and Matthew W. Hitzeroth, Irwindale, CA (US)
Assigned to Biosense Webster (Israel) Ltd., Yokneam (IL)
Filed by Biosense Webster (Israel) Ltd., Yokneam (IL)
Filed on Dec. 12, 2023, as Appl. No. 18/536,517.
Application 18/536,517 is a continuation of application No. 16/953,578, filed on Nov. 20, 2020, granted, now 11,872,026.
Claims priority of provisional application 62/943,572, filed on Dec. 4, 2019.
Prior Publication US 2024/0099605 A1, Mar. 28, 2024
Int. Cl. A61B 5/00 (2006.01); A61B 5/06 (2006.01); A61M 25/00 (2006.01); A61M 25/01 (2006.01)
CPC A61B 5/061 (2013.01) [A61B 5/6852 (2013.01); A61M 25/005 (2013.01); A61M 25/0068 (2013.01); A61M 25/0158 (2013.01); A61M 2025/0059 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A spring assembly comprising:
a tubular body extending along a longitudinal axis, the tubular body sized to traverse vasculature;
a first mounting surface comprising T-shaped indentations thereon and a first arcuate length partially circumscribing the longitudinal axis and configured to directly couple to a portion of a first electrical circuit, the first mounting surface positioned in the tubular body, perpendicular to the longitudinal axis over a majority of the first arcuate length, and facing a first direction parallel to the longitudinal axis;
a second mounting surface comprising T-shaped indentations thereon and a second arcuate length partially circumscribing the longitudinal axis and configured to directly couple to a portion of a second electrical circuit, the second mounting surface positioned in the tubular body, perpendicular to the longitudinal axis over a majority of the second arcuate length, and facing toward the first mounting surface in a second direction opposite the first direction; and
a compressible framework extending between the first mounting surface and the second mounting surface.