Cryosurgical probe with enhanced thermal performance
AssigneeVarian Medical Systems, Inc.
InventorDaniel N. Grimm
Life of this patent
Estimating the term…
Abstract
A probe and method of using a probe are disclosed. The probe may comprise a first member, a tip, a second member, and a third member. The first member may have a first and second end portions. The tip may be configured to engaged to the first member at the second end portion. The second member may be configured to extend and be positioned within the first member. The third member may be configured to be disposed outward of the second member along at least a portion of the second member, engage an inner surface of the first member, and define to least one passage between the third member and the first member. The probe may be coupled to a fluid supply and return, and fluid may flow within the probe, including within the passage defined between the first and third members.
Claims20
A probe, comprising:
- a first member forming an outer surface of a cryoprobe;
- a second member extending longitudinally within the first member;
- and
- a third member disposed radially outward from the second member and extending along at least a portion of the second member, wherein the third member comprises a substantially continuous cross-sectional profile along its length and is configured to operably engage an inner surface of the first member to define at least one passage between the third member and the first member;
- wherein the probe defines a fluid flow path for flow in a first direction through the second member and flow in a second direction opposite to the first direction through the at least one passage.
A system, comprising:
- a fluid supply;
- a probe comprising;
- a first member forming an outer surface of a cryoprobe;
- a second member extending longitudinally within the first member;
- and
- a third member disposed radially outward from the second member and extending along at least a portion of the second member, wherein the third member comprises a substantially continuous cross-sectional profile along its length and is configured to operably engage an inner surface of the first member to define at least one passage between the third member and the first member;
- wherein the probe defines a fluid flow path for flow in a first direction through the second member and flow in a second direction opposite to the first direction through the at least one passage, the fluid flow path fluidly coupled to the fluid supply.
Dependencies are inferred from the claim text.