JPWO2020247619A5 - - Google Patents

Claims (25)

A method of processing physiological information comprising:
providing a processor coupled to a data storage device and providing a plurality of functional elements coupled to the processor and positioned in, on, and/or proximal to the body;
establishing and calibrating a localization coordinate system by processing a first set of signals from the first set of functional elements using a first localization mode;
recalibrating the localization coordinate system by processing a second set of signals from the second set of functional elements using a second localization mode;
wherein said first locating mode is different than said second locating mode;
Method. 2. A method according to claim 1, comprising inserting at least one object into an organ and/or said body, said at least one object comprising functional elements from said plurality of functional elements. 3. The method of claim 2, wherein the at least one object comprises at least one catheter containing catheter functional elements. 3. The method of claim 2, wherein the at least one catheter comprises a diagnostic catheter. further comprising locating the diagnostic catheter within the localization coordinate system;
The diagnostic catheter comprises:
one or more magnetic elements used to locate the magnetic base;
one or more electrodes used for impedance-based localization;
5. The method of claim 4, comprising one or more ultrasound elements used for ultrasound-based localization. 5. The diagnostic catheter of claim 4, wherein the diagnostic catheter is a cardiac mapping catheter and the catheter functional element comprises a plurality of electrodes configured to sense and/or record electrical potentials associated with cardiac activity and/or localization. described method. 5. The method of claim 4, wherein the diagnostic catheter is a basket catheter and the catheter functional element comprises a basket array of electrodes. 5. The method of claim 4, wherein said diagnostic catheter is a Lasso catheter and said catheter functional element comprises an array of electrodes. The diagnostic catheter includes a shaft having a distal end including an actuator slidable within a lumen of a sheath to deploy an array of functional elements within the body, wherein the shaft, sheath, and/or Or the method of claim 4, wherein the actuator comprises one or more functional elements. each of the shaft and the actuator includes one or more functional elements in the form of auxiliary electrodes, the method comprising:
10. The method of claim 9, comprising determining with the processor relative distance measurements between the auxiliary electrodes on the shaft and the auxiliary electrodes on the actuator. 11. The method of claim 10, further comprising determining with the processor a shape of the array of functional elements based on the distance measurements. 12. The method of claim 11, wherein the array of functional elements is a basket array and the processor determines the shape of the basket array. The plurality of functional elements includes external functional elements positioned outside and/or on the body, wherein the external functional elements are one or more of the first set and/or the 2. The method of claim 1, comprising a second set of functional elements. at least one wearable garment, comprising at least some of said external functional elements, including said one or more of said first set and/or said second set of functional elements, against said body; providing at least one wearable garment that maintains contact, pressure and/or position of said external functional element;
14. The method of claim 13, wherein the at least one wearable garment takes the form of a vest, suit, shirt, bodysuit, or portions thereof. at least some of the external functional elements are removable from the at least one wearable garment; and/or
15. The method of claim 14, wherein at least a portion of said external functional elements are embedded or disposed within said at least one wearable garment. The wearable garment comprises at least two different external functional elements, one or more of the first set and/or the second set of functional elements being an impedance functional element, a magnetic functional element and an ultrasonic 15. The method of claim 14, comprising at least two different external functional elements selected from the group of functional elements. providing a patch comprising at least some of said external functional elements, said external functional elements including said one or more of said first set and/or said second set of functional elements; and
17. The method of claim 16, comprising attaching the patch to the trunk of the body. one or more of said patches are at least two different external functional elements, one or more of said first set and/or said second set of functional elements being a magnetic functional element, an impedance functional element, 18. The method of claim 17, comprising at least two different external functional elements selected from the group consisting of: and ultrasound functional elements. 2. The method of claim 1, further comprising recording physiological data at one or more recording locations of said functional element and converting said physiological data into patient information at one or more target locations different from said recording locations. described method. 20. The method of claim 19, wherein the physiological data are cyclically changing. 20. The method of claim 19, further comprising applying a transfer matrix to the physiological data at one or more recording locations to determine patient information at one or more target locations different from the recording locations. . 22. The method of claim 21, wherein the transfer matrix is a scale matrix, the scale matrix being a measure of the rate of change of field values. 23. Calibrating the localization coordinate system comprises estimating the scale matrix, wherein estimating the scale matrix is performed by measuring voltage differences between functional elements having known spacings. The method described in . 24. The method of claim 23, wherein the functional elements are on the catheter and their dimensions are predetermined. further comprising locating one or more of said functional elements with respect to said body, wherein said locating locates functional elements by:
measuring the difference in field values between the functional element and its position relative to the body and the position where the field values are known;
multiplying the measured difference by the scale matrix;
wherein said resulting output is the position of said sensor relative to said known position;
23. The method of claim 22.