| CPC A61B 17/320758 (2013.01) [A61B 17/32002 (2013.01); A61B 2017/320032 (2013.01)] | 20 Claims |
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19. A method of preparing tissue, comprising:
placing a shaver of a handheld rotary medical device in contact with the tissue, wherein the handheld rotary medical device comprises:
an inner drive shaft;
an elongated, tubular, outer housing encapsulating the inner drive shaft such that the inner drive shaft is positioned within the outer housing;
the shaver at a distal end of the inner drive shaft, wherein the shaver includes a plurality of teeth extending radially outward from an outer surface of the inner drive shaft, wherein the plurality of teeth are aligned into circumferential rows and wherein teeth within a row are offset circumferentially relative to teeth in an adjacent circumferential row;
wherein the outer housing includes an opening aligned with the shaver at the distal end of the inner drive shaft;
circumferential slots formed in a sidewall forming the outer housing at the opening aligned with the shaver at the distal end of the inner drive shaft, wherein the slots extend in a circumferential direction from a longitudinally extending edge forming an edge of the opening in the outer housing;
wherein the outer housing includes a distal opening at a distal end of the outer housing, wherein the distal opening is in communication with the opening in the outer housing that is aligned with the shaver; and
wherein at least one slot of the circumferential slots is aligned with a portion of a first row of teeth and a portion of a second row of teeth; and
operating the handheld rotary medical device to cause the shaver to be rotated while in contact with the tissue.
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