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US 12,758,296 B2Granted
Apparatuses and methods for combination radio frequency and cryo ablation treatments
AssigneeVarian Medical Systems, Inc.
InventorsHongxuan Zhang, Vineel Vallapureddy
Life of this patent
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Abstract
A probe for performing an ablation treatment includes a shell defining an outer surface, a cooling path comprising an inflow path and a return path for a cryogen, and at least one radio frequency (RF) emitter. The probe is used to provide combination radio frequency (RF) and cryo treatments during a common procedure.
Claims19
A probe for performing an ablation treatment comprising:
- a shell defining an outer surface;
- a cooling path positioned inside the shell comprising an inflow path and a return path for a cryogen, wherein the cooling path comprises a supply conduit, the inner surface of the supply conduit defining the inflow path, and the outer surface of the supply conduit and an inner surface of the shell defining the outflow path;
- and
- a plurality of radio frequency (RF) pads each positioned at a different location on the shell, wherein the plurality of radio frequency (RF) pads comprise a first RF pad and a second RF pad positioned at a same axial location relative to a distal end of the shell and at a different circumferential location around the outer surface of the shell, wherein the plurality of RF pads comprise a third RF pad positioned on a beveled surface at the distal end of the shell, and wherein the plurality of RF pads are configured to deliver RF energy, and wherein the RF energy is adjustable to thaw ice, perform coagulation, and alleviate pain.
1 more element
A method comprising:
- cooling a target tissue by moving a cryogen through a shell of a probe;
- and
- heating the target tissue by emitting radio frequency (RF) energy from at least one of a plurality of radio frequency (RF) pads positioned on the shell of the probe, wherein the plurality of radio frequency (RF) pads comprise a first RF pad and a second RF pad positioned at a same axial location relative to a distal end of the shell and at a different circumferential location around the outer surface of the shell, wherein the plurality of RF pads comprise a third RF pad positioned on a beveled surface at the distal end of the shell, and wherein the radio frequency (RF) energy is adjustable to thaw ice, perform coagulation, and alleviate pain.
Dependencies are inferred from the claim text.