06017338 is referenced by 162 patents and cites 17 patents.

The invention relates to an ablation catheter which controls the temperature and reduces the coagulation of biological fluids on a tip of a catheter, prevents the impedance rise of tissue in contact with the catheter tip, and maximizes the potential energy transfer to the tissue, thereby allowing an increase in the lesion size produced by the ablation. The ablation catheter includes a catheter body. The ablation catheter also includes a tip for monitoring electrical potentials, and applying electrical energy to a biological tissue. A fluid source is positioned at one end of the catheter for supplying a fluid flow through the catheter to the tip means. Passages are positioned within the tip in a variety of manners for directing the fluid flow through the tip means to the exterior surface of the tip to control the temperature and form a protective fluid layer around the tip. Monitoring structure is also positioned within the tip structure for measurement of the electrical potentials in a biological tissue. Ablation structure is also positioned within the tip for application of ablative energy to the biological tissue.

Title
Fluid cooled and perfused tip for a catheter
Application Number
171213
Publication Number
6017338
Application Date
June 30, 1995
Publication Date
January 25, 2000
Inventor
Steven D Savage
Brooklyn Center
MN, US
Jerome Philip Saul
Newton
MA, US
Gregory G Brucker
Minneapolis
MN, US
Agent
Brad Pedersen
Assignee
Angeion Corporation
MN, US
IPC
A61B 17/39
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