Anatomical model generation
AssigneeAffera, Inc.
InventorsDoron Harlev, Geoffrey Peter Wright
Life of this patent
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Abstract
Devices, systems, and methods of the present disclosure are directed to generating three-dimensional surface representations of an anatomic structure such as a heart cavity. More specifically, a three-dimensional surface representation of the anatomic structure is constrained relative to one or more anchor portions corresponding to received input regarding the location of anatomic features of the anatomic structure. The resulting three-dimensional surface representation includes salient features of the anatomic structure and, therefore, can be useful as visualization tool during any of various different medical procedures, including, for example, cardiac ablation.
Claims18
A method comprising:
- receiving a plurality of location signals, each received location signal indicative of a respective location of a medical device in an anatomic structure of a patient;
- forming a three-dimensional data structure representing locations, within the anatomic structure, visited by the medical device at the locations corresponding to the plurality of location signals;
- receiving one or more anchor portions representing locations relative to the anatomic structure;
- generating a three-dimensional surface representation of the anatomic structure of the patient based only on the plurality of locations signals and the one or more anchor portions, wherein the three-dimensional surface representation of the anatomic structure of the patient is constrained to contain at least a portion of the three-dimensional data structure, and wherein generating the three-dimensional surface representation of the anatomic structure of the patient includes a volumetric smoothing, and further wherein the volumetric smoothing varies relative to the one or more anchor portions;
- and
- displaying, on a graphical user interface, at least one of a two-dimensional projection of the three-dimensional data structure, the one or more anchor portions, and a two-dimensional projection of the three-dimensional surface representation.
A method, comprising:
- forming a three-dimensional data structure based on received locations of a tip section of a cardiac catheter in a heart cavity of a patient;
- receiving one or more anchor portions representing locations relative to the heart cavity, wherein receiving the one or more anchor portions comprises receiving a signal indicative of one or more of the following:
- a change in impedance detected by one or more electrodes of the cardiac catheter, a force detected by a force sensor of the cardiac catheter, a deformation of at least a portion of the cardiac catheter, and an amplitude derived from an electrogram detected by one or more electrodes of the cardiac catheter;
- generating a three-dimensional surface representation of the heart cavity of the patient based only on the received locations of the tip section of the cardiac catheter and on the received one or more anchor portions, wherein the three-dimensional surface representation of the heart cavity of the patient is constrained relative to the received one or more anchor portions and contains at least a portion of the three-dimensional data structure;
- and
- displaying, on a graphical user interface, a two-dimensional projection of the three-dimensional data structure, at least one of the received one or more anchor portions, and/or a two-dimensional projection of the generated three-dimensional surface representation.
A non-transitory, computer-readable storage medium having stored thereon computer executable instructions for causing one or more processors to:
- receive a plurality of location signals, each received location signal indicative of a respective location of a medical device in an anatomic structure of a patient;
- form a three-dimensional data structure representing volumes, within the anatomic structure, occupied by the medical device at the locations corresponding to the plurality of location signals;
- receive one or more anchor portions representing a subset of the three-dimensional data structure;
- generate a three-dimensional surface representation of the anatomic structure of the patient based only on the plurality of location signals and the one or more anchor portions, the three-dimensional surface representation of the anatomic structure of the patient constrained relative to the one or more anchor portions and containing at least a portion of the three-dimensional data structure;
- and
- display, on a graphical user interface, a two-dimensional projection of the three-dimensional data structure, at least one of the one or more anchor portions, and/or a two-dimensional projection of the generated three-dimensional surface representation.
Dependencies are inferred from the claim text.