Patent ID: 6579287
Filing Date: 2003-06-17
Classification: A61B

Abstract:
A device for cryosurgical ablation, comprising:a tip having a thermally transmissive region along a length thereof, the thermally transmissive region being operable at a temperature sufficient to cryosurgically ablate tissue in contact therewith; a plurality of cryosurgical fluid injection lumens, each of the plurality of cryosurgical injection lumens having a first end positioned within the tip at a different point along the length of the thermally transmissive region, each of the first ends being arranged to cool overlapping respective portions along the length of the thermally transmissive region when cryogenic fluid is ejected from the plurality of cryogenic fluid injection lumens, wherein each of the plurality of cryogenic fluid injection lumens further comprises a second end opposite the first end, and wherein the device further comprises a plurality of valves, each of the plurality of valves having an output in fluid communication with the second end of a corresponding cryogenic fluid injection lumen.