Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Reexamination Certificate
2008-07-01
2008-07-01
Soohoo, Tony G (Department: 1797)
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
C366S189000, C222S327000
Reexamination Certificate
active
07393342
ABSTRACT:
A bone cement mixing and delivery system is provided. The system includes a mixing cartridge for receiving liquid and powder components of bone cement, a mixing device for mixing the components, and a delivery gun for discharging the bone cement from the mixing cartridge. The mixing cartridge comprises a cylinder having proximal and distal ends with a cylinder wall extending between the ends. A piston is locked at the distal end by a locking member that includes a pair of locking tabs protruding into slots in the cylinder wall. With the piston in the locked position, the mixing device, e.g., a mixing shaft and blade, mixes the components. After mixing, the cartridge is placed in the delivery gun and release buttons on the locking member are engaged by a release mechanism on the delivery gun to release the piston from the locked position.
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Coffeen Jared P.
Henniges Bruce D.
Howard & Howard Attorneys P.C.
Soohoo Tony G
Stryker Corporation
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