CPC A61B 17/32002 (2013.01) [A61B 2017/0023 (2013.01); A61B 2017/0046 (2013.01); A61B 2017/00238 (2013.01); A61B 2017/00477 (2013.01); A61B 2217/005 (2013.01)] | 18 Claims |
1. A tissue cutting assembly, comprising:
an outer shaft having an outer cutting tip formed on a distal end thereof;
an inner shaft rotatably disposed within the outer shaft and having an inner tissue cutting tip formed on a distal end thereof; and
a hub assembly comprising an outer hub having a distal portion fixedly coupled to the outer shaft, the outer hub having a proximal portion configured to releasably mate with a handle; and an inner hub having a tapered distal portion configured to direct fluid into an exit port formed in the outer hub, the tapered distal portion of the inner hub having a circular slot that extends from a distal end of the inner hub towards an interior portion of the inner hub, the circular slot receiving a proximal end of the inner shaft therein to dispose the proximal end of the inner shaft within the interior portion to fixedly couple the inner hub to the inner shaft;
wherein tissue cut by the outer and inner tissue cutting tips is configured to flow through the inner shaft and out through the exit port formed in the outer hub to prevent fluid from contacting a handle when the hub assembly is coupled thereto.
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