Stenhus I Lund Ab

Promixa Medical Ab

Ulf Larsson

Sten Drennow

Staffan Grebius

A device for mixing and dispensing a paste, such as bone cement, comprises a housing (H) with a feeding mechanism (), and a cylinder () for mixing a powder component and a liquid component forming the paste. A piston assembly includes a paste feeding member () located in the cylinder, and a tubular member (). A mixing member () is located in the cylinder (), and a mixing rod () extends within the tubular member () of the piston assembly. The mixing rod () is movable in the tubular member () of the piston assembly. The tubular member () is provided with external engagement means (T) by which the paste feeding member () is movable within the cylinder () in a feeding direction. The feeding movement is operated by the feeding mechanism.

Mixing and dispensing gun

An assembly for preparing and dispensing a paste, preferably bone cement, includes a cylinder containing a powder and a receptacle containing a liquid. A piercing device is configured to open the receptacle to allow liquid to flow into the cylinder to be mixed with the powder. The receptacle is collapsed by a differential pressure between the cylinder and the receptacle.

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Malmö, Sweden

Ulf Larsson