System and Method for Monitoring Ablation Size
First Claim
1. A system for monitoring ablation size, comprising:
- a power source including a microprocessor for executing at least one control algorithm;
a microwave antenna configured to deliver microwave energy from the power source to tissue to form an ablation zone; and
an ablation zone control module in operative communication with a memory associated with the power source, the memory including at least one data look-up table including at least one electrical parameter associated with the microwave antenna, the at least one electrical parameter corresponding to a radius of the ablation zone, wherein the ablation zone control module triggers a signal when a predetermined threshold value of the at least one electrical parameter is measured corresponding to the radius of the ablation zone.
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Abstract
A system for monitoring ablation size is provided and includes a power source including a microprocessor for executing at least one control algorithm. A microwave antenna is configured to deliver microwave energy from the power source to tissue to form an ablation zone. An ablation zone control module is in operative communication with memory associated with the power source. The memory includes one or more data look-up tables including one or more electrical parameter associated with the microwave antenna. The one or more electrical parameters corresponding to an ablation zone having a radius. The one or more electrical parameters include a threshold value, wherein when the threshold value is met the power source is adjusted to form an ablation zone of suitable proportion.
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Citations
20 Claims
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1. A system for monitoring ablation size, comprising:
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a power source including a microprocessor for executing at least one control algorithm; a microwave antenna configured to deliver microwave energy from the power source to tissue to form an ablation zone; and an ablation zone control module in operative communication with a memory associated with the power source, the memory including at least one data look-up table including at least one electrical parameter associated with the microwave antenna, the at least one electrical parameter corresponding to a radius of the ablation zone, wherein the ablation zone control module triggers a signal when a predetermined threshold value of the at least one electrical parameter is measured corresponding to the radius of the ablation zone. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for monitoring temperature of tissue undergoing ablation, the method comprising:
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transmitting microwave energy from a power source to a microwave antenna to form a tissue ablation zone; monitoring complex impedance associated with the microwave antenna as the tissue ablation zone forms; communicating a control signal to the power source when a predetermined complex impedance is reached at the microwave antenna; and adjusting the amount of microwave energy from the power source to the microwave antenna. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A microwave antenna adapted to connect to a power source configured for performing an ablation procedure, comprising:
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a radiating section configured to deliver microwave energy from a power source to tissue to form an ablation zone; and an ablation zone control module operably coupled to a memory associated with the power source, the memory including at least one data look-up table including at least one electrical parameter associated with the microwave antenna, the at least one electrical parameter corresponding to a radius of the ablation zone, wherein the ablation zone control module triggers a signal to the power source when a predetermined threshold value of the at least one electrical parameter is measured corresponding to the radius of the ablation zone. - View Dependent Claims (19, 20)
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Specification