Identifying pulmonary vein occlusion by dimension deformations of balloon catheter
AssigneeBiosense Webster (Israel) Ltd.
InventorsEid Adawi, Zvi Dekel
Life of this patent
Estimating the term…
Abstract
A method includes receiving position signals that are indicative of positions of multiple electrodes disposed on an expandable balloon that is fitted at a distal end of a shaft for engaging a lumen of an organ to occlude the lumen. Based on the received position signals, a change is calculated in one or more dimensions of the balloon between (i) a first configuration in which the balloon is inflated but not engaged in the lumen, and (ii) a second configuration in which the balloon is inflated and engaged in the lumen. Using the calculated change, a degree is estimated to which the balloon occludes the lumen. The estimated degree of occlusion is presented to a user.
Claims20
A method, comprising:
- receiving position signals that are indicative of positions of multiple electrodes disposed on an expandable balloon that is fitted at a distal end of a shaft for engaging a lumen of an organ to occlude the lumen;
- based on the received position signals, calculating a change in one or more dimensions of the balloon between (i) a first configuration in which the balloon is inflated but not engaged in the lumen, and (ii) a second configuration in which the balloon is inflated and engaged in the lumen;
- using the calculated change, deriving a Balloon Inflation Index (BII) indicative of an estimated degree to which the balloon occludes the lumen, the BII being based at least in part on a respective change in balloon curvature between the first configuration and the second configuration;
- and
- presenting the estimated degree of occlusion to a user.
A system, comprising:
- an interface, configured to receive position signals that are indicative of positions of multiple electrodes disposed on an expandable balloon that is fitted at a distal end of a shaft for engaging a lumen of an organ to occlude the lumen;
- and
- a processor, which is configured to:
- based on the received position signals, calculate a change in one or more dimensions of the balloon;
- using the calculated change in dimensions, derive a Balloon Inflation Index (BII) indicative of an estimated degree to which the balloon occludes the lumen, the BII being based at least in part on a respective change in balloon curvature between (i) a first configuration in which the balloon is inflated but not engaged in the lumen, and (ii) a second configuration in which the balloon is inflated and engaged in the lumen;
- and
- present the estimated degree of occlusion to a user.
Dependencies are inferred from the claim text.