Back to results
US 10,327,744 B2Granted
Assistive manual zeroing visualization
AssigneeBiosense Webster (Israel) Ltd.
InventorsNatan Sharon Katz, Aharon Turgeman, Doron Moshe Ludwin, Ronen Krupnik
Life of this patent
Estimating the term…
Abstract
A probe having a contact force sensor is inserted into a cardiac chamber and an image of the blood pool is generated. A portion of the blood pool is removed from the image to retain a remaining portion of the blood pool. A determination is made that the distal segment of the probe is within the remaining portion of the blood pool, and responsively to the determination the contact force sensor is manually zeroed.
Claims9
An apparatus, comprising:
- a probe, configured for insertion into a body cavity having a blood pool and an endocardial surface of a patient and comprising a contact force sensor for measuring a force applied to the contact force sensor and location sensors for detecting a location of the probe in the body cavity;
- and
- a processor, which is configured to receive a plurality of measurements from the contact force sensor and the location sensors, the processor configured to:
- define the blood pool and generating an image of the body cavity showing the blood pool and the endocardial surface;
- determine a first portion of the blood pool adjacent the endocardial surface to be removed from the image, the portion being a predetermined distance from the endocardial surface;
- remove the first portion of the blood pool from the image to retain a remaining portion of the blood pool thereon;
- regenerate the image to present the remaining portion of the blood pool and a location of a distal segment of the probe relative to the remaining portion on the image;
- make a determination from the image that the distal segment of the probe is within the remaining portion of the blood pool;
- and
- responsively to the determination enable manual zeroing of the contact force sensor.
7 more elements
Dependencies are inferred from the claim text.