Needle deployment for temperature sensing from an electrode
First Claim
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1. A method for improving contact with a surface of a tissue, the method comprising:
- placing a tissue contacting surface of a probe body against the surface of the tissue, wherein the tissue contacting surface of the probe body comprises a surface of at least one electrode;
deploying a needle into the tissue;
partially retracting the needle to increase the amount of contact between the tissue contacting surface of the probe body and the surface of the tissue.
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Abstract
Methods and devices for improving contact between tissue and a probe. In exemplary embodiments, methods of the present invention include a deploying a needle into a target tissue and retracting the needle so that tenting around the needle is reduced. The retracting of the needle can increase the amount of tissue contact between a surface of the tissue and a surface contacting portion of a probe body.
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Citations
62 Claims
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1. A method for improving contact with a surface of a tissue, the method comprising:
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placing a tissue contacting surface of a probe body against the surface of the tissue, wherein the tissue contacting surface of the probe body comprises a surface of at least one electrode;
deploying a needle into the tissue;
partially retracting the needle to increase the amount of contact between the tissue contacting surface of the probe body and the surface of the tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 49, 50, 51, 52, 53, 54, 55, 56, 57, 59, 60)
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15. A method of improving tissue contact between tissue and a probe, the method comprising;
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contacting a tissue contacting surface of the probe against the tissue, wherein the tissue contacting surface of the probe body comprises a surface of at least one electrode;
deploying a needle into the patient tissue; and
a step for reducing tissue tenting around the needle so that tissue substantially maintains contact with the tissue contacting surface of the probe. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 61, 62)
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30. A device for treating a target tissue, the target tissue having a tissue surface, the device comprising:
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a body comprising a tissue contacting surface that contacts the tissue surface, wherein the tissue contacting surface of the body comprises a surface of at least one electrode;
a needle movably coupled to the body, the needle comprising a tip that is movable from a retracted position to a deployed position, wherein the needle tip can be moved from the deployed position and locked into a partially retracted position. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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43. A system for treating a target tissue of a patient body, the target tissue having a tissue surface, the system comprising:
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a probe body comprising a proximal portion and a distal portion, said distal portion comprising a tissue contacting surface;
a plurality of electrodes positioned on the distal portion of the probe body, wherein the tissue contacting surface of the distal portion comprises a surface of at least one electrode;
a power source coupled to the plurality of electrodes;
a needle comprising a tip;
actuation means for moving the needle between a first position, a second position, and a third position, wherein the needle in the first position is housed within the distal portion of the probe body, wherein the needle in the second position is extended such that the needle tip is beyond the target tissue, and the needle in the third position is retracted from the second position such that the needle tip is positioned in the target tissue. - View Dependent Claims (44, 45, 46, 47, 48)
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58. A method of operating a probe, the method comprising:
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placing a tissue contacting surface of a probe body against the surface of the tissue, wherein the tissue contacting surface of the probe body comprises a surface of at least one electrode;
deploying a needle into the tissue to a deployed position;
partially retracting the needle from the deployed position; and
locking the needle in a partially retracted position.
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Specification