| CPC A61B 18/082 (2013.01) [A61B 17/1615 (2013.01); A61B 17/1626 (2013.01); A61B 17/1633 (2013.01); A61B 17/32002 (2013.01); A61B 17/320783 (2013.01); A61B 18/1206 (2013.01); A61B 18/14 (2013.01); A61B 18/148 (2013.01); A61B 18/1482 (2013.01); A61B 2017/00017 (2013.01); A61B 2017/0023 (2013.01); A61B 2017/0088 (2013.01); A61B 17/320016 (2013.01); A61B 2017/320024 (2013.01); A61B 2017/320028 (2013.01); A61B 2018/00196 (2013.01); A61B 2018/00202 (2013.01); A61B 2018/00208 (2013.01); A61B 2018/00214 (2013.01); A61B 2018/00601 (2013.01); A61B 2018/0091 (2013.01); A61B 2018/00952 (2013.01); A61B 2018/126 (2013.01); A61B 2018/1472 (2013.01); A61B 2018/1475 (2013.01); A61B 2218/007 (2013.01)] | 17 Claims |
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1. An arthroscopic system, comprising:
a handpiece that includes a motor drive with a rotatable motor shaft;
a probe that includes a proximal hub with a rotatable drive coupling located at a proximal end of the proximal hub, the proximal hub detachably couplable to the handpiece so that the rotatable drive coupling engages the rotatable motor shaft, the probe further including an elongate shaft assembly that extends distally from the proximal hub to a working end of the probe, the elongate shaft assembly extending along a first longitudinal axis and including an inner sleeve rotatably received in an outer sleeve, the outer sleeve including a proximal end that is fixed in the proximal hub, the inner sleeve including a proximal end that is fixed to the rotatable drive coupling, the rotatable drive coupling rotatable within the proximal hub via the rotatable motor shaft when the proximal hub is coupled to the handpiece for rotating the inner sleeve within the outer sleeve and relative to the proximal hub, the inner sleeve including a distal opening at the working end of the probe that leads to a longitudinal channel in the inner sleeve, the longitudinal channel couplable to a negative pressure source via coupling of the proximal hub to the handpiece for drawing fluid into the longitudinal channel through the distal opening along a fluid outflow path that extends proximally from the distal opening along the longitudinal channel; and
a control console with a controller operatively coupled to the handpiece and including an electrical power source for operating the motor drive,
wherein the proximal end of the inner sleeve being fixed to the rotatable drive coupling extends the fluid outflow path into the rotatable drive coupling, the fluid outflow path exiting the rotatable drive coupling through a side opening in the rotatable drive coupling,
wherein an annular space separates an outer surface of the inner sleeve from an inner surface of the outer sleeve,
wherein the proximal hub incorporates a fluid trap therein that is in fluid communication with the annular space and that is effective, during use of the probe, to trap migratory fluid therein that has migrated along the annular space in a proximal direction from the working end of the probe, the proximal hub also incorporating one or more apertures therein that fluidly connect the fluid trap with an exterior of the proximal hub to allow the migratory fluid to flow outwardly out of the proximal hub during use of the probe,
wherein the handpiece and the one or more apertures in the proximal hub cooperate to allow the migratory fluid to flow in a direction from the fluid trap to the one or more apertures and out of the handpiece during use of the probe,
wherein the control console includes an inflow peristaltic pump for delivering electrically conductive fluid to a treatment site, wherein the one or more apertures are void of a fluid flow connection to the inflow peristaltic pump.
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