Asymmetrical microwave ablation field by curving dipole antenna
AssigneeCovidien LP
InventorsWilliam J. DICKHANS, Scott E.M. Frushour, John W. Komp
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Abstract
An articulating microwave ablation catheter and methods of use the catheter including a catheter sheathing housing therein a radiating section defining an ablation zone, a first pull wire traversing the catheter sheathing, a pull ring secured in a distal portion of the catheter sheathing and configured to receive the pull wire, and a drive mechanism operably connected to the catheter sheathing and the pull wire, wherein operation of the drive mechanism alters the length of the pull wire and a shape of a distal portion of the catheter sheathing and the location of the ablation zone defined by the radiating section.
Claims20
An articulating microwave ablation catheter comprising:
- a catheter sheathing housing therein a radiating section defining an ablation zone;
- a first pull wire traversing the catheter sheathing;
- a pull ring secured in a distal portion of the catheter sheathing and configured to receive the pull wire;
- and
- a drive mechanism operably connected to the catheter sheathing and the pull wire, wherein operation of the drive mechanism alters:
- an effective length of the pull wire, a shape of a distal portion of the catheter sheathing, and a location of the ablation zone defined by the radiating section.
A method comprising:
- receiving an indication that a microwave ablation catheter has been navigated to location within the lungs of a patient;
- and
- articulating the microwave ablation catheter, wherein articulation adjusts an ablation zone of a radiating section of the microwave ablation catheter between 1 and 3 mm in a direction of the articulation.
Dependencies are inferred from the claim text.