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US 7,613,513 B1Granted
System and method for determining cardiac geometry
AssigneePacesetter, Inc.
InventorsJames E. Brewer, Mark W. Kroll
Life of this patent
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Abstract
An exemplary method includes delivering an electrical signal to a first position in or adjacent to a cardiac chamber; sensing a potential generated by the delivered electrical signal at a second position; and determining a parameter based, at least in part, on the sensing wherein the parameter relates to cardiac geometry. Other exemplary methods, devices and/or systems are also disclosed.
Claims22
A method comprising:
- delivering an electrical signal to a first position using at least a first electrode located in or adjacent to a first cardiac chamber;
- sensing a potential generated by the delivered electrical signal using at least a second electrode located at a second position in or adjacent to a second cardiac chamber;
- and
- determining a change in an inter-electrode spacing between the first electrode and the second electrode based, at least in part, on a percent change of the sensed potential relative to a baseline potential.
1 more element
An apparatus comprising:
- means for delivering an electrical signal to a first position using at least a first electrode located in or adjacent to a first cardiac chamber;
- means for sensing a potential generated by the delivered electrical signal at a second position using at least a second electrode located in or adjacent to a second cardiac chamber;
- means for determining a percent change of the sensed potential relative to a baseline potential;
- and
- means for determining a change in an inter-electrode spacing between the first electrode and the second electrode based, at least in part, on the percent change of the sensed potential.
2 more elements
An implantable cardiac system comprising:
- an implantable device having a case capable of acting as an electrode;
- one or more implantable leads having one or more electrodes wherein the one or more leads are connectable to the device;
- and
- circuitry that is operative to deliver an electrical signal to a first electrode position in or adjacent to a first cardiac chamber, sense a potential generated by the delivered electrical signal at a second electrode position in or adjacent to a second cardiac chamber, and
- a controller adapted to determine a percent change of the sensed potential relative to a baseline potential and to determine a change in an inter-electrode spacing between the first electrode and the second electrode based, at least in part, on the percent change of the sensed potential.
2 more elements
A method comprising:
- delivering an electrical signal to a first position using a first electrode located in or adjacent to a cardiac chamber using a unipolar electrode configuration;
- sensing a potential generated by the delivered electrical signal using a second electrode located at a second position;
- determining a percent change of the sensed potential relative to a baseline potential;
- and
- determining a change in an inter-electrode spacing between the first electrode and the second electrode based, at least in part, on the percent change of the sensed potential.
2 more elements
Dependencies are inferred from the claim text.