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US 2026/0215847 A1Published application
System for optic-based filtered telemetry measurements
AssigneeCovidien LP
InventorsJohn W. KOMP, Scott E.M. FRUSHOUR, William J. DICKHANS
Life of this patent
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Abstract
An ablation system includes an ablation device configured to ablate a target, and a computing device. The ablation device includes fiber Bragg gratings for monitoring temperature. The computing device is configured to calculate temperature measurements based on light reflected from the fiber Bragg gratings during application of microwave ablation energy to the target and filter the temperature measurements to remove noise.
Claims20
An ablation system comprising:
- an ablation device including:
- a radiating antenna configured to apply microwave ablation energy to a target within a patient to ablate the target;
- a cable extending from the radiating antenna and configured to connect the radiating antenna to a microwave generator;
- a first fiber including first Bragg gratings formed along a length of the first fiber proximate the radiating antenna and configured to reflect light therefrom;
- and
- a second fiber including second Bragg gratings formed along a length of the second fiber and longitudinally spaced apart from the first Bragg gratings along a longitudinal axis of the ablation device and configured to reflect light therefrom;
- a cooling system including a pump configured to pump a cooling fluid to the ablation device to cool the ablation device;
- and
- a computing device including a processor and memory storing instructions which, when executed by the processor, cause the computing device to:
- calculate first telemetry measurements associated with the radiating antenna based on the reflected light from the first Bragg gratings;
- calculate second telemetry measurements associated with the cooling system based on the reflected light from the second Bragg gratings;
- and
- filter the first telemetry measurements based on the second telemetry measurements.
10 more elements
An ablation system comprising:
- an ablation device including:
- a radiating antenna configured to apply microwave ablation energy to a target within a patient to ablate the target;
- a cable extending from the radiating antenna and configured to connect the radiating antenna to a microwave generator;
- and
- a fiber including:
- first Bragg gratings formed along a length of the fiber proximate the radiating antenna and configured to reflect light therefrom;
- and
- second Bragg gratings formed along a length of the fiber and spaced apart from the first Bragg gratings and configured to reflect light therefrom;
- a cooling system including a pump configured to pump a cooling fluid to the ablation device to cool the ablation device;
- and
- a computing device including a processor and memory storing instructions which, when executed by the processor, cause the computing device to:
- calculate first telemetry measurements associated with the radiating antenna based on the reflected light from the first Bragg gratings;
- calculate second telemetry measurements associated with the cooling system based on the reflected light from the second Bragg gratings;
- and
- filter the first telemetry measurements based on the second telemetry measurements.
12 more elements
A method for filtering telemetry measurements comprising:
- receiving reflected light from first Bragg gratings and reflected light from second Bragg gratings;
- calculating first telemetry measurements associated with a radiating antenna based on the reflected light from the first Bragg gratings;
- calculating second telemetry measurements associated with a cooling system based on the reflected light from the second Bragg gratings;
- and
- filtering the first telemetry measurements based on the second telemetry measurements.
2 more elements
Dependencies are inferred from the claim text.