US 11,744,480 B2
Catheter deflection system with deflection load limiter
Ryan Hoitink, Glendale, CA (US); Ricardo Padilla, Jr., Eastvale, CA (US); and Frank H. Truong, El Monte, CA (US)
Assigned to BIOSENSE WEBSTER (ISRAEL) LTD., Yokneam (IL)
Filed by Biosense Webster (Israel) Ltd., Yokneam (IL)
Filed on May 13, 2020, as Appl. No. 15/930,795.
Claims priority of provisional application 62/866,109, filed on Jun. 25, 2019.
Prior Publication US 2020/0405182 A1, Dec. 31, 2020
Int. Cl. A61B 5/06 (2006.01); A61B 5/00 (2006.01); A61B 18/14 (2006.01); A61B 17/00 (2006.01); A61B 18/00 (2006.01); A61B 34/20 (2016.01)
CPC A61B 5/065 (2013.01) [A61B 5/6852 (2013.01); A61B 18/1492 (2013.01); A61B 34/20 (2016.02); A61B 2017/00199 (2013.01); A61B 2017/00327 (2013.01); A61B 2018/00077 (2013.01); A61B 2018/00351 (2013.01); A61B 2018/00577 (2013.01); A61B 2218/002 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
(a) a handle;
(b) a catheter extending distally from the handle, a proximal portion of the catheter defining a longitudinal axis;
(c) an end effector extending distally from the catheter, the end effector including at least one electrode;
(d) a deflection assembly, the deflection assembly being configured to deflect the end effector away from the longitudinal axis, the deflection assembly comprising:
(i) an input member associated with the handle, the input member comprising a driving body configured to actuate relative to the handle,
(ii) a translating assembly coupled to the end effector, the driving body being configured to actuate relative to the handle to thereby drive the translating assembly to deflect the end effector away from the longitudinal axis;
(e) a load limiting assembly comprising a resilient member interposed between the input member and the translating assembly, the load limiting assembly configured to cause the deflection assembly to move between an engaged configuration and a disengaged configuration, where in the engaged configuration the input member is coupled to the translating assembly such that actuation of the input member drives the translating assembly to deflect the end effector away from the longitudinal axis, and in the disengaged configuration the input member is decoupled from the translating assembly such that actuation of the input member moves the input member without driving the translating assembly, the load limiting assembly being configured to cause the deflection assembly to move to the disengaged configuration when actuation of the input member results in generation of a predetermined load against the resilient member.