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US 9,314,290 B2Granted
Cryogenic needle with freeze zone regulation
AssigneeMyoScience, Inc.
InventorsMichael Fourkas, Ronald Williams, John Allison, Jesse Rosen
Life of this patent
Estimating the term…
Abstract
A cryogenic needle of a cryogenic system is coupled to a heater. While the needle is inserted into target tissue beneath skin, the heater provides heat to protect the skin. Power supplied to the heater is used to interpolate performance of the needle and/or operating parameters of the cryogenic system.
Claims30
A method for cryogenically treating tissue, the method comprising:
- regulating coolant to a needle probe using a valve, the needle probe having at least one needle and a heater thermally coupled to the at least one needle, wherein the heater comprises a thermally conductive element, the thermally conductive element being thermally coupled to a proximal skin engaging portion of the at least one needle;
- providing power to the heater based on power demand from the heater;
- monitoring the power provided to the heater;
- and
- performing a correlation of the monitored power with at least one of a tissue characteristic and/or an operating parameter.
2 more elements
A method for cryogenically treating tissue, the method comprising:
- regulating coolant to a needle probe using a valve, the needle probe having at least one needle and a heater thermally coupled to the at least one needle, wherein the at least one needle comprises a sensorless needle;
- providing power to the heater based on power demand from the heater;
- monitoring the power provided to the heater;
- and
- performing a correlation of the monitored power with at least one of a tissue characteristic and/or an operating parameter.
2 more elements
A method for cryogenically treating tissue, the method comprising:
- regulating coolant to a needle probe using a valve, the needle probe having at least one needle and a heater thermally coupled to the at least one needle;
- providing power to the heater based on power demand from the heater;
- monitoring the power provided to the heater;
- performing a correlation of the monitored power with at least one of a tissue characteristic and an operating parameter;
- and/or
- providing a user indication based on the correlation of the monitored power with the at least one of the tissue characteristic and/or the operating parameter, wherein the user indication comprises needle probe status.
3 more elements
A method for cryogenically treating tissue, the method comprising:
- regulating coolant to a needle probe using a valve, the needle probe having at least one needle and a heater thermally coupled to the at least one needle;
- providing power to the heater based on power demand from the heater;
- monitoring the power provided to the heater;
- performing a correlation of the monitored power with at least one of a tissue characteristic, an operating parameter, and/or depth of insertion of the at least one needle, wherein the tissue characteristic comprises tissue type.
1 more element
Dependencies are inferred from the claim text.