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US 11,529,190 B2Granted
Enhanced ablation and visualization techniques for percutaneous surgical procedures
AssigneeCovidien LP
InventorWilliam S. Krimsky
Life of this patent
Estimating the term…
Abstract
A medical instrument for enhancing diagnosis and treatment comprising a handle, an ablation probe extending from the handle, a catheter extending from the handle. The catheter defines a lumen and the ablation probe is located within the lumen of the catheter. A port in fluid communication with the lumen of the catheter is configured for connection to a vacuum or fluid source, and application of a vacuum or an injection of fluid creates a consistent zone of permittivity around the ablation probe.
Claims12
A medical instrument comprising:
- a handle;
- a flexible microwave ablation probe extending from the handle;
- a flexible catheter extending from the handle, the flexible catheter defining a lumen, the flexible microwave ablation probe located within the lumen of the flexible catheter, wherein the flexible microwave ablation probe and flexible catheter are configured for navigation within a luminal network;
- a first balloon formed on a distal portion of the flexible catheter to secure the flexible catheter within a lumen of the luminal network;
- a balloon catheter extendible from the flexible catheter and including a second balloon and a fluid line in communication with the luminal network beyond the second balloon;
- and
- a port in fluid communication with the lumen of the flexible catheter, the port configured for connection to a vacuum or fluid source;
- wherein the first balloon and the second balloon isolate a region of the lumen and the flexible microwave ablation probe is navigable within the region independent of the flexible catheter and the balloon catheter and application of a vacuum creates apposition of tissue to the flexible microwave ablation probe and a consistent zone of permittivity in a flexible microwave ablation probe to tissue interface outside of the flexible catheter.
5 more elements
A medical instrument comprising:
- a flexible catheter assembly configured for navigation to a target within airways of a patient, the flexible catheter assembly including a lumen extending through the flexible catheter assembly, a port on a proximal portion of the flexible catheter assembly in fluid communication with the lumen, and a sensor configured to generate a signal for determination of a position of a distal portion of the flexible catheter assembly;
- a first balloon proximate the distal portion of the flexible catheter assembly, wherein the balloon is configured to secure the flexible catheter assembly in the airways of the patient;
- a balloon catheter extendible from the flexible catheter and including a second balloon and a fluid line in communication with the airways of the patient beyond the second balloon;
- and
- a flexible microwave ablation probe configured to be received within the lumen of the flexible catheter assembly and extend from a distal portion of the flexible catheter assembly;
- wherein the lumen of the flexible catheter is sized such that the port remains in fluid communication with a distal portion of the flexible catheter assembly when the flexible microwave ablation probe and the balloon catheter are received therein;
- and
- a vacuum source in fluid communication with the port, wherein the first balloon and the second balloon isolate a region of the airways of the patient and the flexible microwave ablation probe is navigable within the region independent of the flexible catheter and the balloon catheter and application of a vacuum to the port creates apposition of tissue to the flexible microwave ablation probe and a consistent zone of permittivity in a flexible microwave ablation probe to tissue interface outside of the flexible catheter.
5 more elements
A medical instrument comprising:
- a flexible catheter assembly configured for navigation to a target within airways of a patient;
- a plurality of lumens extending through the flexible catheter assembly,
- a sensor configured to generate a signal for determination of a position of a distal portion of the flexible catheter assembly;
- a port on the distal portion of the flexible catheter assembly in fluid communication with a vacuum source;
- a first balloon formed on a distal portion of the flexible catheter assembly and configured to secure the flexible catheter assembly in the airways;
- a balloon catheter extendible from the flexible catheter, the balloon catheter including a second balloon and a fluid line in communication with the airways of the patient beyond the second balloon;
- and
- a flexible microwave ablation probe configured to be received within one of the lumens of the flexible catheter assembly and extend beyond a distal end of the flexible catheter assembly, wherein the first balloon and the second balloon isolate a region of the airways of the patient and the flexible microwave ablation probe is navigable within the region independent of the flexible catheter and the balloon catheter and application of a vacuum to the port creates a consistent zone of permittivity in a flexible microwave ablation probe to tissue interface outside of the flexible catheter.
5 more elements
Dependencies are inferred from the claim text.