Method and apparatus for selecting operating parameter values in electrophysiology procedures
AssigneeC.R. Bard, Inc.
InventorDebbie Stevens-Wright
Life of this patent
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Abstract
Methods of selecting operating parameter values for tissue ablation procedures are disclosed. Energy supply parameters may be selected based on inputs such as fluid flow rate, impedance, and the distance from an ablation electrode surface to a target tissue surface. The distance to place an ablation electrode surface from a target tissue surface may be selected based on various operating parameter values and/or operating condition values. Operating curves, lookup tables, or processors may be used to select operating parameter values.
Claims35
A method of selecting an operating parameter value for supplying energy to an ablation electrode, comprising:
- (a) receiving a first signal representing a value of a fluid flow rate;
- (b) receiving a second signal representing a value of an impedance;
- (c) receiving a third signal representing a value of a distance from an ablation electrode surface to a target tissue surface;
- and
- (d) selecting a value for an operating parameter for supplying energy to the ablation electrode as a function of the first, second and third signals.
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17-19. (canceled)
21-22. (canceled)
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31-33. (canceled)
A system comprising:
- a catheter having a shaft;
- an ablation electrode positioned on the shaft;
- an energy supply;
- an input interface configured to receive a signal representing a value of a fluid flow rate, a signal representing a value of an impedance, and a signal representing a value of a distance from an electrode surface to a target tissue surface;
- a processor operatively connected to the input interface and programmed to select an operating parameter value for supplying energy to the ablation electrode with the energy supply, the selection being a function of the three signals received by the input interface;
- and
- an output interface operatively connected to the processor and configured to provide the selected operating parameter value.
A computer-readable medium having instructions stored thereon that, as a result of being executed by a computer, instruct the computer to perform a method comprising:
- (a) receiving a first signal representing a value of a fluid flow rate;
- (b) receiving a second signal representing a value of an impedance;
- (c) receiving a third signal representing a value of a distance from an ablation electrode surface to a target tissue surface;
- and
- (d) selecting a value for an operating parameter for supplying energy to the ablation electrode as a function of the first, second and third signals.
36-37. (canceled)
A method of selecting an operating parameter value for transmitting energy to tissue, comprising:
- (a) receiving a first signal representing a value of a fluid flow rate near the tissue;
- (b) receiving a second signal representing a value of an impedance;
- and
- (c) selecting a value for a distance to set an ablation electrode surface apart from a target tissue surface as a function of the first and second signals.
39-43. (canceled)
A method of selecting an operating parameter value for transmitting energy to tissue, comprising:
- (a) receiving a first signal representing a value of a fluid flow rate near the tissue;
- and
- (b) selecting a value for a distance to set an ablation electrode surface apart from a target tissue surface as a function of the first signal.
45-90. (canceled)
Dependencies are inferred from the claim text.