RESPIRATORY EFFECT REDUCTION IN CATHETER POSITION SENSING
First Claim
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1. A method, comprising:
- positioning body-electrodes in galvanic contact with a body of a patient;
locating a probe in the body of the patient;
tracking positions of the probe during respiration of the patient;
determining indications related to impedances between the body-electrodes during the respiration;
calculating a function relating the positions of the probe to the indications; and
applying the function to identify end-expirium points of the respiration based on subsequent indications related to the impedances.
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Abstract
A method, including positioning body-electrodes in galvanic contact with a body of a patient and locating a probe in the body of the patient. The method further includes tracking positions of the probe during respiration of the patient and determining indications related to impedances between the body-electrodes during the respiration. The method also includes calculating a function relating the positions of the probe to the indications, and applying the function to identify end-expirium points of the respiration based on subsequent indications related to the impedances.
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Citations
18 Claims
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1. A method, comprising:
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positioning body-electrodes in galvanic contact with a body of a patient; locating a probe in the body of the patient; tracking positions of the probe during respiration of the patient; determining indications related to impedances between the body-electrodes during the respiration; calculating a function relating the positions of the probe to the indications; and applying the function to identify end-expirium points of the respiration based on subsequent indications related to the impedances. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. Apparatus, comprising:
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body-electrodes which are positioned in galvanic contact with a body of a patient; a probe located in the body of the patient; and a processor, which is configured to; track positions of the probe during respiration of the patient, determine indications related to impedances between the body-electrodes during the respiration, calculate a function relating the positions of the probe to the indications, and apply the function to identify end-expirium points of the respiration based on subsequent indications related to the impedances. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification