Method for mapping a heart using catheters having ultrasonic position sensors
First Claim
Patent Images
1. A method of constructing a cardiac map of a heart having a heart cycle comprising:
- (a) bringing an invasive probe into contact with a location on a wall of the heart;
(b) determining, at at least two different phases of the heart cycle, a position of the invasive probe;
(c) determining a local non-electrical physiological value at the location;
(d) repeating (a)-(c) for a plurality of locations of the heart; and
(e) combining the positions to form a time-dependent map of at least a portion of the heart.
0 Assignments
0 Petitions
Accused Products
Abstract
A method for mapping a heart comprises the steps of inserting a mapping catheter having an ultrasonic position sensor into the heart. At least one reference catheter having an ultrasonic position sensor is also inserted into the heart. The position of the mapping catheter is determined relative to the at least one reference catheter and a portion of the heart is mapped with the mapping catheter. Additionally, the at least one reference catheter may be provided outside of the heart.
150 Citations
144 Claims
-
1. A method of constructing a cardiac map of a heart having a heart cycle comprising:
-
(a) bringing an invasive probe into contact with a location on a wall of the heart;
(b) determining, at at least two different phases of the heart cycle, a position of the invasive probe;
(c) determining a local non-electrical physiological value at the location;
(d) repeating (a)-(c) for a plurality of locations of the heart; and
(e) combining the positions to form a time-dependent map of at least a portion of the heart. - View Dependent Claims (2, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 142)
-
-
3. A method of constructing a cardiac map of a heart having a heart cycle comprising:
-
(a) bringing an invasive probe into contact with a location on a wall of the heart;
(b) determining a position of the invasive probe;
(c) determining a local non-electrical physiological value at the location at a plurality of different phases of the heart cycle;
(d) repeating (a)-(c) for a plurality of locations of the heart; and
(e) combining the positions to form a map of at least a portion of the heart. - View Dependent Claims (4, 5)
-
-
73. A method of cardiac shaping comprising:
-
generating a map of a heart;
choosing a portion of the heart having a certain amount of muscle tissue thereat; and
determining a pacing regime for changing the workload of the portion. - View Dependent Claims (74, 75, 76, 77, 78, 79, 80)
-
-
81. A method of determining an optimal location for implanting a pacemaker electrode comprising:
-
(a) pacing a heart from a first location;
(b) determining a cardiac parameter associated with pacing at the location; and
(c) repeating (a) and (b) for a second location; and
(d) selecting an optimal location based on the determined values for the cardiac parameters. - View Dependent Claims (82, 83, 84, 85, 86)
-
-
87. A method of determining a regime for pacing a heart, comprising:
-
(a) determining a local physiological value at a plurality of locations in the heart; and
(b) determining a pacing regime which changes a distribution of the physiological value in a desired manner. - View Dependent Claims (88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 116)
-
-
101. A method of determining a preferred pacing regime, comprising:
-
generating a map of the heart; and
determining, using the map, a preferred pacing regime for a heart which is optimal with respect to a physiological variable. - View Dependent Claims (102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 114, 115, 118, 129, 134, 138, 140, 143)
-
-
113. A method of pacing comprising:
-
(a) pacing a heart using a first pacing scheme; and
(b) changing the pacing scheme to a second pacing scheme, wherein the change in pacing is not directly related to a sensed or predicted arrhythmia, fibrillation or cardiac output demand in the heart.
-
-
117. A pacemaker comprising:
-
a plurality of electrodes;
a source of electricity for electrifying the electrodes; and
a controller which changes the electrification of the electrodes in response to a plurality of values of local information of a heart, measured at different locations, to achieve an optimization of a cardiac parameter of the heart. - View Dependent Claims (119, 121, 122, 123, 124, 125, 126, 127)
-
-
120. A pacemaker comprising:
-
a plurality of electrodes;
a source of electricity for electrifying the electrodes; and
a controller which changes the electrification of the electrodes in response to a stored map of values of local information of a heart at different locations, to achieve an optimization of a cardiac parameter of the heart.
-
-
128. A method of detecting structural anomalies in a heart, comprising:
-
(a) bringing an invasive probe into contact with a location on a wall of the heart;
(b) determining a position of the invasive probe;
(c) repeating (a)-(b) for a plurality of locations on the wall;
(d) combining the positions to form a time-dependent map of at least a portion of the heart; and
(e) analyzing the map to determine structural anomalies in the heart. - View Dependent Claims (130)
-
-
131. A method of adding a conductive pathway in a heart between a first segment of the heart and a second segment of the heart, comprising:
-
generating a mechanical map of the heart;
providing an activation conduction device having a distal end and a proximal end;
electrically connecting the distal end of the device to the first segment; and
electrically connecting the proximal end of the device to the second segment.
-
-
132. A conductive device for creating conductive pathways in the heart, comprising:
-
a first lead adapted for electrical connection to a first portion of the heart;
a second lead adapted for electrical connection to a second portion of the heart;
a capacitor for storing electrical charge generated at the first portion of the heart and for discharging the electrical charge at the second portion of the heart.
-
-
133. A method of viewing a map, comprising:
-
providing a map of local information of a heart; and
overlaying a medical image on the map. - View Dependent Claims (135, 136)
-
-
137. A method of diagnosis comprising:
-
generating a map of a heart; and
correlating the map with a library of maps.
-
-
139. A method of analysis, comprising:
-
generating a map of electrical activation of a heart;
generating a map of mechanical activation of the heart; and
determining local relationships between the local electrical activation and mechanical activation. - View Dependent Claims (141)
-
-
144. Apparatus comprising:
-
a memory having a plurality of maps stored therein; and
a correlator which correlates an input map with the plurality of maps.
-
Specification