Systems and processes for refining a registered map of a body cavity
AssigneeSciMed Life Systems, Inc.
InventorDorin Panescu
Life of this patent
Estimating the term…
Abstract
A process of refining a map of a body cavity includes positioning a first probe and a second probe within the body cavity. Mapping elements on the first probe are used to gather local information from a plurality of locations along the body cavity. The absolute locations of the mapping elements are registered in a three-dimensional coordinate system, and are associated with the local information to generate the map. A mapping element on the second probe is then used to gather information local to a location between the plurality of locations along the body cavity. The absolute location of the mapping element is registered in the three-dimensional system and associated with the local information to refine the map.
Claims40
A method of mapping a body cavity of a patient, comprising:
- positioning a first probe carrying a plurality of mapping elements in the body cavity, wherein the plurality of mapping elements are located adjacent a plurality of locations along the body cavity;
- positioning a second probe carrying a functional element in the body cavity;
- determining an absolute position of the functional element within a three-dimensional coordinate system;
- determining a proximity of the functional element to each of the plurality of mapping elements;
- determining an absolute position within the coordinate system of each of the plurality of mapping elements based on the absolute position of the functional element and the proximity of the functional element to each of the plurality of mapping elements;
- generating a map by detecting information local to the body cavity using the plurality of mapping elements and associating the local information to the absolute positions of the plurality of mapping elements;
- locating the functional element adjacent a location on the body cavity between the plurality of locations, wherein the functional element comprises a mapping element;
- determining an absolute position of the mapping element within the coordinate system;
- and
- detecting information local to the body cavity using the mapping element and associating the local information to the absolute position of the mapping element to refine the map.
A method of mapping a body cavity of a patient, comprising:
- positioning a first probe carrying a plurality of mapping elements in the body cavity, wherein the plurality of mapping elements are located adjacent a plurality of locations along the body cavity;
- positioning a second probe carrying a mapping element in the body cavity;
- determining an absolute position within the coordinate system of each of the plurality of mapping elements;
- generating a map by detecting information local to the body cavity using the plurality of mapping elements and associating the local information to the absolute positions of the plurality of mapping elements;
- locating the mapping element adjacent a location on the body cavity between the plurality of locations;
- determining an absolute position of the mapping element within the coordinate system;
- and
- detecting information local to the body cavity using the mapping element and associating the local information to the absolute position of the mapping element to refine the map.
A method of mapping a body cavity of a patient, comprising:
- positioning a mapping probe within the body cavity;
- generating a map of the body cavity with the mapping probe;
- registering the map within a three-dimensional coordinate system;
- positioning a roving probe in the body cavity;
- and
- refining the map with the roving probe.
A system for mapping a body cavity, comprising:
- a first probe having a distal portion carrying a plurality of mapping elements and one or more location elements;
- a second probe having a distal portion carrying a mapping element and a location element;
- a mapping processing subsystem in communication with the plurality of mapping elements and the mapping element, and being configured for generating a map by detecting information local to the body cavity using the plurality of mapping elements and the mapping element;
- a location determination subsystem in communication with the one or more location elements and the location element and being configured to determine absolute positions of the plurality of mapping elements and the mapping element in a three-dimensional coordinate system based on locations of the one or more location elements and the location element;
- and
- a registration subsystem in communication with the mapping processing subsystem and the location determination subsystem, and being configured to associate the local information to the absolute positions of the plurality of mapping elements and the mapping element.
Dependencies are inferred from the claim text.