US 12,274,464 B2
Ear-nose-throat (ENT) navigable shaver with ferromagnetic components
Assaf Govari, Haifa (IL)
Assigned to Biosense Webster (Israel) Ltd., Yokneam (IL)
Filed by Biosense Webster (Israel) Ltd., Yokneam (IL)
Filed on Oct. 31, 2022, as Appl. No. 17/977,152.
Application 17/977,152 is a continuation of application No. 16/427,833, filed on May 31, 2019, granted, now 11,510,692.
Prior Publication US 2023/0087907 A1, Mar. 23, 2023
Int. Cl. A61B 17/24 (2006.01); A61B 1/233 (2006.01); A61B 5/06 (2006.01); A61B 34/20 (2016.01); A61M 25/00 (2006.01)
CPC A61B 17/24 (2013.01) [A61B 1/233 (2013.01); A61B 5/062 (2013.01); A61B 34/20 (2016.02); A61M 25/0041 (2013.01); A61B 2034/2046 (2016.02); A61B 2034/2051 (2016.02); A61M 2210/0681 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system, comprising:
(a) a medical probe, comprising:
(i) a distal end, the distal end of the medical probe being rigid,
(ii) distal magnetic position sensors coupled to the distal end and configured to generate distal position signals, each of the distal magnetic position sensors being fixed relative to another of the distal magnetic position sensors via the rigidity of the distal end, and
(iii) a proximal-end assembly; and
(b) a position-tracking system, comprising:
(i) a memory, which is configured to hold values indicative of known positions of the distal magnetic position sensors relative to one or more other components of the medical probe, and
(ii) a processor, which is configured to:
(A) determine estimated positions of the distal magnetic position sensors based on the distal position signals,
(B) determine geometric positions of the distal magnetic position sensors, and
(C) initiate a responsive action in response to detecting a discrepancy between the estimated positions of the distal magnetic position sensors and the geometric positions of the distal magnetic position sensors, the responsive action including notifying an operator that the discrepancy between the estimated positions of the distal magnetic position sensors and the geometric positions of the distal magnetic position sensors has been corrected.