Ronald Lee Gilbert

US Patent:

53702212, Dec 6, 1994

Filed:

Aug 27, 1993

Appl. No.:

8/113414

Inventors:

Bent Magnusson - Birkerod, DK
Daniel B. Smith - Warsaw IN
Ronald L. Gilbert - Fort Wayne IN

Assignee:

Biomet, Inc. - Warsaw IN
Polymers Reconstructive A/S - Farum

International Classification:

B65D 8132

US Classification:

206221

Abstract:

A flexible container for packaging liquid and powder components that are to be mixed within the container to form a bone cement comprises a divider for dividing the container into first and second compartments and for isolating the components from one another, the first compartment containing the liquid component and the second compartment containing the powder component under vacuum, and a vacuum reservoir in communication with the second compartment, the vacuum reservoir being of sufficient size to receive substantially all residual interstitial gases from the powder component and thereby ensure thorough admixing of the liquid and powder components upon release of the divider. In an exemplary embodiment, the reservoir comprises an elongated cylinder which is either hollow and closed at least at one end by a respective filter element or formed of an open-cell foam, the interior of the hollow cylinder or the open-cell foam being of sufficient free volume to receive and hold under reduced pressure the interstitial air.

US Patent:

53984838, Mar 21, 1995

Filed:

Jan 29, 1993

Appl. No.:

8/011339

Inventors:

Daniel B. Smith - Warsaw IN
Ronald L. Gilbert - Fort Wayne IN

Assignee:

Polymers Reconstructive A/S - Farum

International Classification:

B65B 2910
A61F 100

US Classification:

53474

Abstract:

A method and apparatus for packaging, mixing and delivering bone cement. The apparatus may include a bone cement gun having a flexible container which is able to store at least two components of the bone cement. In this regard, the flexible container includes a first compartment that is able to store one component of the bone cement as well as a second compartment that is able to store the second component of the bone cement. A sealing member temporarily seals the first compartment with the second compartment, the removal of which permits the first and second components to be mixed so as to form the bone cement.