Agitating – In vacuum chamber
Patent
1993-11-16
1994-09-20
Simone, Timothy F.
Agitating
In vacuum chamber
366288, 366312, B01F 1306
Patent
active
053483910
ABSTRACT:
A method for mixing bone cement by mixing PMMA powder and MMA liquid in a vacuum chamber using a rotary mixer having a pair of spaced mixing arms. The rotary mixer is manually rotated by a gear drive. The arms of the rotary mixer follow continuous paths, each path having a plurality of loops at the wall of the chamber and curved portions extending across the chamber between loops. The arms move through the cement, break bubbles and thoroughly mix the PMMA and MMA. Gas from broken bubbles is vacuum drawn from the mixer by a vacuum source. The vacuum source is deactivated when a vacuum tube is detached from the mixer.
REFERENCES:
patent: 795082 (1905-07-01), Warner
patent: 2184225 (1939-12-01), McDuffee et al.
patent: 2203135 (1940-06-01), Farrington
patent: 2453914 (1948-11-01), Hollenback
patent: 2696022 (1954-12-01), Steinbock et al.
patent: 3131912 (1964-05-01), Steinbock, Jr.
patent: 3358971 (1967-12-01), Steinbock, Jr.
patent: 3640510 (1972-08-01), Lea
patent: 4185072 (1980-01-01), Puderbaugh et al.
patent: 4277184 (1981-07-01), Solomon
patent: 4721390 (1988-01-01), Lidgren
patent: 4758096 (1988-07-01), Gunnarsson
patent: 4787751 (1988-11-01), Bakels
patent: 4854716 (1989-08-01), Ziemann et al.
patent: 4961647 (1990-10-01), Coutts et al.
patent: 4973168 (1990-11-01), Chan
patent: 5015101 (1991-05-01), Draenert
patent: 5044761 (1991-09-01), Yuhki et al.
patent: 5100241 (1992-03-01), Chan
patent: 5114240 (1992-05-01), Kindt-Larsen
patent: 5145250 (1992-09-01), Planck et al.
patent: 5193907 (1993-03-01), Faccioli et al.
patent: 5265956 (1993-11-01), Nelson et al.
Zimmer Osteobond Vacuum Mixing System, June, 1993.
Stryker High Vacuum Cement Injection System, "Third Generation Cementing Technique", Jan. 1992.
Howmedica, The Simplex Enhancement Mixer, "The Howmedica Experience", Dec., 1985.
Depuy, Inc. Flyer "Prism Vacuum Mixing Bowl", date unknown.
FDA Database printout indicating 510K Approval Of "Prism Bone Cement Mixing System", on Jan. 5, 1994.
Cooley Charles
Hooker Thomas
Simone Timothy F.
LandOfFree
Manual bone cement mixing method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Manual bone cement mixing method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Manual bone cement mixing method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2429328