Agitating – In vacuum chamber
Patent
1997-09-16
2000-03-28
Cooley, Charles E.
Agitating
In vacuum chamber
366142, 366189, 366310, 36632594, 366601, B01F 1310
Patent
active
060422629
ABSTRACT:
Apparatus for storing, mixing, and dispensing a two-component bone cement includes a first component supply section, a mixing section, and a drive base. One or more ampules of the first (liquid) component, provided within the first component supply section, are broken or cut when a lever is rotted. The second (powder) component is provided within the mixing section. During the mixing process, a vacuum is applied within the mixing section, assisting in the delivery of the first component through a filter while preventing the passage of broken glass or plastic from the ampules. Mixing is done by a pair of paddles and a helical wire spring rotating within the mixing station, being driven in one direction, or in alternating opposite directions of rotation, by the drive base. The resulting mixture is dispensed by placing the mixing station, without the drive base and the first component supply section, into a dispensing gun, which drives a shaft moving a piston within the mixing section to dispense the mixture through a dispensing tube while collapsing the helical spring. A plug within the piston is pushed through the dispensing tube to clear the mixture remaining therein. In an alterative arrangement, mixing occurs under vacuum conditions in a bowl having an internal surface similarly scraped with a flexible wire.
REFERENCES:
patent: 1251160 (1917-12-01), Woody
patent: 2823113 (1958-03-01), Knibb
patent: 3640510 (1972-02-01), Lea
patent: 4185072 (1980-01-01), Puderbaugh et al.
patent: 4277184 (1981-07-01), Solomon
patent: 4671263 (1987-06-01), Draenert
patent: 4721390 (1988-01-01), Lidgren
patent: 4732013 (1988-03-01), Beck
patent: 4973168 (1990-11-01), Chan
patent: 5015101 (1991-05-01), Draenert
patent: 5100241 (1992-03-01), Chan
patent: 5114240 (1992-05-01), Kindt-Larsen et al.
patent: 5265956 (1993-11-01), Nelson et al.
patent: 5328262 (1994-07-01), Lidgren et al.
patent: 5395167 (1995-03-01), Murray
patent: 5415474 (1995-05-01), Nelson et al.
patent: 5435645 (1995-07-01), Faccioli et al.
Cooley Charles E.
Davidge Ronald V.
Stryker Technologies Corportion
LandOfFree
Apparatus for storing, mixing, and dispensing two-component bone does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for storing, mixing, and dispensing two-component bone, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for storing, mixing, and dispensing two-component bone will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1320244