Electrophysiology catheter and system for gentle and firm wall contact
First Claim
1. A method of applying an electrode on the end of a flexible medical device to the surface of moving body structure using a remote navigation system, the method comprising navigating the distal end of the device to the surface by orienting the distal end, and maintaining the distal end in contact with the surface of the moving body structure during the entire range of motion of the surface to enable the electrode to sense split potential pre-excitation condition in the moving body structure.
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Abstract
A method of applying an electrode on the end of a flexible medical device to the surface of a body structure, the method including navigating the distal end of the device to the surface by orienting the distal end and advancing the device until the tip of the device contacts the surface and the portion of the device proximal to the end prolapses. Alternatively the pressure can be monitored with a pressure sensor, and used as an input in a feed back control to maintain contact pressure within a pre-determined range.
168 Citations
20 Claims
- 1. A method of applying an electrode on the end of a flexible medical device to the surface of moving body structure using a remote navigation system, the method comprising navigating the distal end of the device to the surface by orienting the distal end, and maintaining the distal end in contact with the surface of the moving body structure during the entire range of motion of the surface to enable the electrode to sense split potential pre-excitation condition in the moving body structure.
- 8. A method of applying an electrode on the end of a flexible medical device to the surface of moving heart surface using a remote navigation system, the method comprising navigating the distal end of the device to the heart surface by orienting the distal end, monitoring the configuration of the distal end portion of the medical device for a prolapse, and advancing the distal end of the medical device against the heart surface until a sufficient amount of prolapse is established in the distal end to maintain the distal end in a prolapse condition during the entire range of motion of the moving heart surface to enable the electrode to sense a split potential electrical pre-excitation condition in the moving heart.
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17. A method of applying an electrode on the end of a flexible medical device to the surface of a moving heart within a subject body using a remote navigation system, the method comprising navigating the distal end of the device to the heart surface by orienting the distal end, monitoring the configuration of the distal end portion of the medical device for a prolapse, advancing the electrode on the distal end of the medical device against the heart surface with a contact force in the range of 4 to 10 grams to establish a sufficient amount of prolapse in the distal end to maintain the distal end in a prolapse condition during the entire range of motion of the moving heart surface;
- and monitoring the electrode in contact with the heart surface during the entire range of motion of the moving heart surface to detect a split potential electrical pre-excitation condition in the tissue surface of the moving heart.
- View Dependent Claims (18, 19, 20)
Specification