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US 6,168,594 AGranted
Electrophysiology RF energy treatment device
AssigneeSciMed Life Systems, Inc.
InventorsDaniel M. LaFontaine, Jenifer Kennedy
Life of this patent
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Abstract
An electrophysiology energy treatment system for treating tissues within a patient's body with RF energy comprises an elongate catheter tube having a distal end, with a porous member thereon, insertable into the patient's body. An RF electrode is within the catheter tube adjacent the distal end and locatable within the patient's body, and an electrolyte fluid flows within the catheter tube for electrically connecting the electrode to the tissues to be treated within the patient's body.
Claims4
A system for the controlled ablation of body tissue using radio frequency (RF) energy, comprising:
- a controllable source of RF energy;
- a source of electrolytic fluid;
- and
- a catheter assembly, comprising
- an elongate catheter having a distal portion adapted to be inserted into a patient's body, a proximal portion attachable to the source of electrolytic fluid and to the source of RF energy, and a lumen for delivering fluid from the proximal portion to the distal portion,
- a porous member disposed on the distal portion of the catheter, the porous member defining an interior region in communication with the lumen, and
- an electrode disposed in the interior region and configured for coupling to the source of RF energy, whereby RF energy may be transferred from the electrode to selected tissue areas in a patient's body via electrolytic fluid delivered through the lumen and passing through the porous member.
4 more elements
Dependencies are inferred from the claim text.