| CPC A61B 17/32002 (2013.01) [A61B 2017/00115 (2013.01); A61B 2017/00367 (2013.01); A61B 2017/0046 (2013.01); A61B 2017/320032 (2013.01); A61B 2017/3447 (2013.01); A61B 90/30 (2016.02); A61B 90/361 (2016.02); A61B 2217/005 (2013.01); A61B 2217/007 (2013.01)] | 18 Claims |
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1. An apparatus, comprising:
a first cannula to couple to a fluid receptacle such that fluid flows from the fluid receptacle through a proximal opening of the first cannula;
a second cannula to couple within the first cannula such that an outer wall of the second cannula is in touching relation with an inner wall of the first cannula, the second cannula including a first distal opening and a first slot longitudinally extending along a length of the second cannula, wherein the fluid entering the proximal opening of the first cannula is to flow through the first slot and exit at a distal end of the apparatus; and
a third cannula to couple within the second cannula such that an outer wall of the third cannula is in touching relation with an inner wall of the second cannula, the third cannula including a second distal opening that rotationally interacts with the first distal opening during debridement of tissue,
wherein:
the fluid entering the proximal opening of the first cannula is to flow through a channel defined by an opening between a first boundary and a second boundary, the opening including the first slot, the first boundary including a longitudinal portion of the inner wall of the first cannula, and the second boundary including a longitudinal portion of the outer wall of the third cannula,
a thickness of the channel is substantially the same as a thickness of the second cannula between the outer wall of the second cannula and the inner wall of the second cannula; and
the outer wall of the third cannula is flush against the inner wall of the second cannula along the channel.
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