Microwave ablation device with optical sensor
AssigneeNeuwave Medical, Inc.
InventorsEmily FORAN, Todd KIEFER, Scott JOHNSON, Matthew THIEL, Robert KNOWLTON
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Abstract
A system is disclosed including an energy delivery device and a controller. The energy delivery device includes a cannula, an antenna extending from the cannula and operable to deliver energy to tissue of the patient, and an optical sensor including Fiber Bragg Gratings (FBGs). The cannula and the antenna are insertable through skin of a patient to an insertion depth. The controller is in communication with the optical sensor and operable to receive temperature measurements from the optical sensor and determine the insertion depth based on the received temperature measurements.
Claims20
A system, comprising:
- an energy delivery device that includes:
- a cannula;
- an antenna extending from the cannula and operable to deliver energy to tissue of a patient, the cannula and the antenna being insertable through skin of the patient to an insertion depth;
- and
- an optical sensor including Fiber Bragg Gratings (FBGs);
- and
- a controller in communication with the optical sensor and operable to:
- receive temperature measurements from the optical sensor;
- and
- determine the insertion depth based on the received temperature measurements.
A method, comprising:
- inserting an antenna and a cannula of an energy delivery device through the skin of a patient to an insertion depth;
- transmitting an optical signal through an optical sensor of the energy delivery device;
- receiving a plurality of reflected optical signals from the optical sensor reflected off Fiber Bragg Gratings (FBGs) defined on the optical sensor;
- determine a temperature at each of the FBGs based on the reflected optical signals;
- and
- determining the insertion depth of the energy delivery device based on the determined temperatures.
A system, comprising:
- an energy delivery device that includes:
- a cannula insertable through skin of a patient;
- an antenna extending from the cannula and operable to operable to deliver energy to tissue of the patient;
- and
- an optical sensor;
- and
- a controller in communication with the optical sensor and operable to:
- receive temperature measurements from the optical sensor;
- and
- determine a rate of movement of the energy delivery device relative to the skin based on the received temperature measurements.
Dependencies are inferred from the claim text.