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.
Claims20
A method, comprising:
- receiving a plurality of location signals representing locations, within an anatomic structure of a patient, visited by a tip section of a medical device;
- forming, based on the plurality of location signals, 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;
- identifying, in the three-dimensional data structure, one or more anchor portions corresponding to a blood-tissue boundary of the anatomic structure, wherein identifying the one or more anchor portions includes receiving, from one or more sensors or a user input device, one or more signals indicative of contact between the tip section of the medical device and at least a portion of blood-tissue boundary corresponding to an anatomic feature of the anatomic structure;
- and
- generating, based on the three-dimensional data structure, and the one or more anchor portions, a three-dimensional surface representation of the anatomic structure of the patient containing at least a portion of the three-dimensional data structure,
- wherein generating the three-dimensional surface representation includes constraining the three-dimensional surface representation relative to the one or more anchor portions such that, in comparison to an absence of the constraint, (a) the generated three-dimensional surface representation is positioned closer to the one or more anchor portions and (b) accuracy of the anatomic feature in the three-dimensional surface representation is increased.
Dependencies are inferred from the claim text.