Fluid-cooled low-profile microwave ablation probe with spherical ablation zone
AssigneeWalmart Apollo, LLC
InventorsJustin Patrick May, Hojjatollah Fallahi
Life of this patent
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Abstract
A microwave ablation probe includes a cable extending in an axial direction and also includes an antenna configured to deliver Radio Frequency (RF) energy. The probe includes a shell positioned radially outward of the cable and a choke electrically coupled to an outer conductor of the cable. The probe also includes a cooling tube positioned inside the shell and positioned radially outward of the cable. The cooling tube including a first portion with a first outer diameter and a second portion with a second outer diameter. The second portion located radially outward of the choke and the second outer diameter being greater than the first outer diameter.
Claims20
A microwave ablation probe comprising:
- a cable extending in an axial direction;
- an antenna coupled to the cable and configured to deliver Radio Frequency (RF) energy;
- a shell positioned radially outward of the cable and defining a probe tip;
- a choke electrically coupled to an outer conductor of the cable;
- and
- a cooling tube positioned inside the shell and positioned radially outward of the cable, the cooling tube comprising a first portion with a first outer diameter and a second portion with a second outer diameter, the second portion located radially outward of the choke and the second outer diameter being greater than the first outer diameter.
A microwave ablation probe comprising:
- a shell comprising a tip for insertion in a target tissue;
- a cable positioned inside the shell and configured to deliver RF energy to an antenna;
- a choke coupled to the cable;
- and
- a cooling tube positioned between the cable and the shell defining a cooling path for delivery of a cooling fluid, wherein the cooling tube varies in diameter corresponding to a location of the choke.
Dependencies are inferred from the claim text.