BONE CEMENT MIXING AND DELIVERY SYSTEM WITH AUTOMATED BONE CEMENT TRANSFER BETWEEN MIXER AND DELIVERY DEVICE AND METHOD OF MIXING AND AUTOMATED TRANSFER OF BONE CEMENT BETWEEN MIXER AND DELIVERY DEVICE

摘要

A bone cement mixing and delivery system comprises a mixer with a mixing chamber and a paddle and a piston moveably disposed therein. An electrically actuated drive assembly moves said paddle in and said piston through the mixing chamber. A delivery device has a reservoir for receiving mixed bone cement discharged from the mixing chamber with a proximal end opening and a delivery port in the opposed distal end. A plunger is disposed within the reservoir and has a head for moving from the reservoir proximal end opening towards the reservoir distal end to drive cement out of the delivery port. The reservoir has an entry port and a transfer conduit extends from a mixing chamber exit port to the reservoir entry port for transferring the cement into the reservoir. A one-way valve allowing flow into and preventing flow out of the reservoir is mounted to the reservoir entry port.