Patent ID: 8172456

Claim:
A bone cement mixing and delivery system, said system comprising: a mixer including: a base; a shell attached to said base, said shell defining a mixing chamber for receiving bone cement-forming components, the shell having a discharge port that opens out of the mixing chamber; a paddle moveably disposed in the mixing chamber for mixing the components to form bone cement; a piston disposed in said base and having a face directed towards the shell mixing chamber, said piston being moveable mounted to said base to move through the mixing chamber so as to push the cement out through the shell discharge port; an electrically actuated drive assembly disposed in said base that is connected to: said paddle to move said paddle in the mixing chamber; and said piston to move said piston through the mixing chamber; and a delivery device, said delivery device having: a tube that defines a reservoir, said tube having a distal end opening, a proximal end opening and an entry port into the reservoir, the entry port being separate from the distal and proximal end openings, said entry port being in fluid communication with said mixer shell discharge port, wherein said tube is removably mounted to said mixer base; a plunger mounted to tube that extends from the proximal opening of said tube, said plunger configured to slide toward the distal opening to push cement out of the distal opening; and a one-way valve mounted to the tube entry port, said tube configured to allow flow into the tube reservoir and prevent flow out of the tube reservoir; and a coupling located between the mixer shell discharge port and the tube entry port for disconnecting said tube from said mixer shell.