CPC A61B 18/1482 (2013.01) [A61B 17/32002 (2013.01); A61B 18/148 (2013.01); A61B 2017/0088 (2013.01); A61B 2017/320028 (2013.01); A61B 2018/00196 (2013.01); A61B 2018/00208 (2013.01); A61B 2018/00565 (2013.01); A61B 2018/00577 (2013.01); A61B 2018/00589 (2013.01); A61B 2018/00595 (2013.01); A61B 2018/00601 (2013.01); A61B 2018/0072 (2013.01); A61B 2018/1422 (2013.01); A61B 2018/1475 (2013.01); A61B 2217/005 (2013.01); A61B 2218/007 (2013.01)] | 20 Claims |
1. An electrosurgical probe attachable to a handpiece that incorporates a motor drive unit and an RF current contact, the electrosurgical probe comprising:
an elongate shaft including a proximal hub for detachably securing the elongate shaft to the handpiece;
an electrode extending longitudinally within the elongate shaft for axial reciprocation in the elongate shaft, the electrode including a hook portion at a distal end of the electrode;
an RF connector on the proximal hub for coupling to the RF current contact in the handpiece when the proximal hub is detachably secured to the handpiece;
a drive coupling in the proximal hub for engaging a rotatable component of the motor drive unit when the proximal hub is detachably secured to the handpiece, the drive coupling coupled to a proximal portion of the electrode, the drive coupling configured to convert rotational motion of the rotatable component of the motor drive unit into axial reciprocation of the electrode in the elongate shaft; and
a dielectric tip disposed at a distal end of the elongate shaft, the dielectric tip including a distal face, the distal face including an opening therein through which the electrode extends to position the hook portion distal of the distal face, the electrode extending through an electrode portion of the opening, the opening also including a plurality of flow channel portions that extend radially outwardly from the electrode portion of the opening.
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