Apparatuses and methods for interstitial tissue removal
First Claim
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1. A tissue ablation device comprising:
- a shaft having a proximal end, a distal end, and a lumen therethrough, a substantially rigid energy conductive straight cylindrical pin attached to pivot about a fixed point on the shaft near its distal end;
means for causing the element to pivot relative to the shaft;
an aspiration connector coupled to the lumen near the proximal end of the shaft; and
a power supply connector disposed near the proximal end of the shaft and electrically coupled to the energy conductive element.
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Abstract
Apparatuses and methods for removing solid tissue from beneath a tissue surface are described. The methods rely on positioning an energy conductive element at a target site beneath the tissue surface and energizing the element so that it can vaporize tissue. The element is then moved in a pattern which provides the desired tissue removal geometry, such as spherical, ovoid, or cylindrical. Usually, the shaft is moved, typically rotated or reciprocated, and the energy conductive element is moved relative to the shaft, typically by pivoting a rigid element or bowing a flexible element.
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Citations
15 Claims
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1. A tissue ablation device comprising:
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a shaft having a proximal end, a distal end, and a lumen therethrough, a substantially rigid energy conductive straight cylindrical pin attached to pivot about a fixed point on the shaft near its distal end;
means for causing the element to pivot relative to the shaft;
an aspiration connector coupled to the lumen near the proximal end of the shaft; and
a power supply connector disposed near the proximal end of the shaft and electrically coupled to the energy conductive element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification