초록 ▼

A motorized mixer for mixing bone cement for use in attachment of prosthetics and method for using the mixer. The mixer comprises a mixing chamber, a liner in the mixing chamber, an impeller within the liner, a motor for driving the impeller and programmable memory mechanics for regulating the opera

A motorized mixer for mixing bone cement for use in attachment of prosthetics and method for using the mixer. The mixer comprises a mixing chamber, a liner in the mixing chamber, an impeller within the liner, a motor for driving the impeller and programmable memory mechanics for regulating the operations of the motor. The liner comprises a basket for receiving vials of bone cement catalyst and a mixing bowl for receiving the bone cement powder. Preferably the two are permanently attached to one another. The mixing bowl is also used for mixing the two components together to produce the bone cement. During mixing the mixing bowl is maintained under a vacuum to withdraw fumes from the bone cement and to prevent gases from being mixed into the bone cement. Once mixing is complete, a U-shaped trap door releases the mixed bone cement from the mixing bowl, through a discharge tube and into a bone cement cartridge. By maintaining the interior of the bone cement cartridge under a vacuum, the withdrawal of the bone cement is simplified.

대표청구항 ▼

[ What is claimed is:] [1.] A mixer for mixing bone cement, the mixer comprising:a mixer housing;a liner adapted to be placed in the housing, wherein the liner includes a mixing bowl for containing the bone cement and an impeller bearing for supporting an impeller shaft;an impeller adapted to be pos

[ What is claimed is:] [1.] A mixer for mixing bone cement, the mixer comprising:a mixer housing;a liner adapted to be placed in the housing, wherein the liner includes a mixing bowl for containing the bone cement and an impeller bearing for supporting an impeller shaft;an impeller adapted to be positioned in the mixing bowl and attached to the impeller shaft, for stirring the bone cement;a lid for sealing the mixing bowl;means for applying a vacuum to the mixing bowl to withdraw fumes from the mixing bowl and to prevent gases from mixing with the bone cement; andmeans for applying a vacuum to a bone cement cartridge adapted to be placed in communication with the mixing bowl to assist in transferring the mixed bone cement from the mixing bowl to the bone cement cartridge.