Systems and methods for guiding and locating functional elements on medical devices positioned in a body
First Claim
1. A system for performing a medical procedure, comprising:
- a first probe having a distal portion carrying a first set of functional elements comprising a first functional element;
a second probe having a distal portion carrying a second set of functional elements comprising a second functional element;
a proximity determination subsystem in communication with the first and second sets of functional elements, and configured to determine a proximity of the first functional element relative to the second functional element; and
a location determination subsystem in communication with the second set of functional elements and configured to determine an absolute position of the second functional element in a three-dimensional coordinate system.
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0 Petitions
Accused Products
Abstract
A system for performing an invasive diagnostic or therapeutic medical procedure includes a first probe having a distal portion carrying a plurality of functional elements and a second probe having a distal portion carrying a functional element and a location sensor. The system includes a proximity processing subsystem in communication with the functional elements carried by each of the first and second probes and configured to determine a proximity of the functional element carried by the second probe relative to a first functional element carried by the first probe. The systems further includes a location processing subsystem configured to determine an absolute position and orientation of the location sensor carried by the second probe with respect to a three-dimensional reference coordinate system that can be internal or external to the three-dimensional space in which the first and second probes are positioned.
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Citations
64 Claims
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1. A system for performing a medical procedure, comprising:
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a first probe having a distal portion carrying a first set of functional elements comprising a first functional element;
a second probe having a distal portion carrying a second set of functional elements comprising a second functional element;
a proximity determination subsystem in communication with the first and second sets of functional elements, and configured to determine a proximity of the first functional element relative to the second functional element; and
a location determination subsystem in communication with the second set of functional elements and configured to determine an absolute position of the second functional element in a three-dimensional coordinate system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A method of locating a probe in a body cavity, comprising:
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positioning a first probe having a first functional element in the body cavity;
positioning a second probe carrying a second functional element in the body cavity;
determining an absolute position of the second functional element within a three-dimensional coordinate system; and
determining a proximity of the second functional element to the first functional element. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. A method of locating a probe with a body cavity of a patient, comprising:
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positioning a first probe carrying a plurality of functional elements in 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 functional elements; and
determining an absolute position within the coordinate system of each of the plurality of functional elements based on the absolute location of the functional element and the proximity of the functional element to each of the plurality of functional elements. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45)
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46. A method of locating a probe with a body cavity of a patient, comprising:
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positioning a first probe carrying a plurality of functional elements in 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 functional elements; and
determining an absolute position within the coordinate system of each of the plurality of functional elements based on the absolute location of the functional element and the proximity of the functional element to each of the plurality of functional elements;
storing the absolute position of each of the plurality of functional elements in memory;
retrieving the stored absolute positions from the memory; and
displaying the retrieved absolute positions. - View Dependent Claims (47, 48, 49, 50, 51, 52, 53, 54, 55)
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56. A method of generating a composite map of tissue within a body region of a patient, comprising:
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positioning a first probe carrying a plurality of mapping elements in a first location adjacent the tissue;
detecting information local to the first location using the plurality of mapping elements;
positioning a second probe carrying a functional element;
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 while the first probe is positioned in the first location;
determining a first absolute position of each of the plurality of mapping elements within the coordinate system based on the absolute location of the functional element and the proximity of the functional element to each of the plurality of mapping elements;
generating first mapping information by associating the first local information to the first absolute positions of the plurality of mapping elements;
positioning the first probe in a second location adjacent the tissue;
detecting information local to the second location using the plurality of mapping elements;
determining a proximity of the functional element to each of the plurality of mapping elements while the first probe is positioned in the second location;
determining a second absolute position of each of the plurality of mapping elements within the coordinate system based on the absolute location of the functional element and the proximity of the functional element to each of the plurality of mapping elements;
generating second mapping information by associating the second local information to the second absolute positions of the plurality of mapping elements; and
combining the first and second mapping information into the composite map. - View Dependent Claims (57, 58, 59, 60, 61)
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62. A method of navigating a probe in a body cavity of a patient, comprising:
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positioning a mapping probe within the body cavity;
generating a map of the body cavity with the mapping probe;
registering the map in a three-dimensional coordinate system;
positioning a roving probe carrying a location element in the body cavity;
determining an absolute position of the location element within the coordinate system; and
navigating the roving probe within the body cavity by reference to the position of the location element within the coordinate system. - View Dependent Claims (63, 64)
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Specification