Patent ID: 9597107
Date: 2017-03-21
CPC Classifications: A61B,A61M

Claim:
1. A surgical instrument comprising: a handle located at a proximal end of the surgical instrument; a housing located at a distal end of the surgical instrument; a nozzle comprising a ring configured to form a liquid jet, the nozzle extending between a first terminal end and a second terminal end, which is positioned opposite the first terminal end, the nozzle including a liquid flow passage having a diameter that continuously decreases from the first terminal end to a location proximate to the second terminal end; an evacuation lumen comprising an opening positioned opposite the nozzle, the evacuation lumen configured to receive at least a portion of the liquid jet emitted from the nozzle and to convey a flow of liquid away from the opening; and a pressure lumen configured and positioned to convey the flow of liquid to the nozzle, wherein the pressure lumen is mounted on an exterior surface of the housing, wherein the pressure lumen further comprises a holder located at a distal opening of the pressure lumen, wherein the holder forms a recessed well in the distal tip of the pressure lumen and is configured to retain and position the nozzle completely inside the holder such that the nozzle is co-axial with a distal end of the pressure lumen and the flow of liquid, and wherein a distal end of the opening of the pressure lumen extends beyond a distal end of the evacuation lumen such that, in operation, the flow of liquid from the nozzle is directed toward the handle.