Electrosurgical biopsy device and method
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United States of America Patent
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Feb 10, 2004
Issued Date -
N/A
app pub date -
Mar 27, 2001
filing date -
Mar 3, 1998
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An electrosurgical biopsy device includes a stylet with a shaft, a head and an ablation element, a cannula with a distal end opening and an ablation element adjacent the opening, and optionally a base. The stylet shaft is movably disposed through the cannula. A translation mechanism controllably moves (a) the stylet between the withdrawn and extended positions and (b) the cannula between a proximal position and a distal position relative to the base. The stylet ablation element may be activated and the stylet and cannula pushed through skin and tissue until the stylet head is adjacent a targeted tissue mass. The stylet may then be extended so that its head penetrates the tissue mass. The cannula ablation element may then be activated, and the cannula pushed through the tissue mass toward the stylet head, cutting and capturing a tissue specimen within the distal end of the cannula.
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