초록 ▼

An apparatus for mixing multi-part reaction materials under a vacuum comprises a container including a mixing chamber sized to contain a reaction material. An agitator for mixing the reaction material to form a mix includes both rigid blades and flexible paddles. The rigid blades are substantially n

An apparatus for mixing multi-part reaction materials under a vacuum comprises a container including a mixing chamber sized to contain a reaction material. An agitator for mixing the reaction material to form a mix includes both rigid blades and flexible paddles. The rigid blades are substantially non-deflected during mixing and cut the mix, and the flexible paddles are deflected and knead the mix. The combined action of the rigid blades and the flexible paddles under vacuum throughly mixes reaction materials and removes entrapped gases from the mix. The mix can be dispensed directly from the mixing chamber. The apparatus can be used to mix viscous materials such as bone cement.

대표청구항 ▼

[ What is claimed is:] [1.] An apparatus for mixing reaction materials under a vacuum, comprising:a) a container including a wall, an open first portion, an open second portion, and a mixing chamber sized to contain a reaction material during mixing;b) a closure at the second portion;c) an agitator

[ What is claimed is:] [1.] An apparatus for mixing reaction materials under a vacuum, comprising:a) a container including a wall, an open first portion, an open second portion, and a mixing chamber sized to contain a reaction material during mixing;b) a closure at the second portion;c) an agitator for mixing the reaction material to form a mix, the agitator including:i) a plurality of rigid blades in the mixing chamber, the rigid blades being sufficiently rigid so as to be substantially non-deflected during mixing of the reaction material; andii) a plurality of flexible paddles in the mixing chamber, the flexible paddles being sufficiently flexible so as to be deflected during mixing of the reaction material;wherein the rigid blades and the flexible paddles contact the wall of the container; andd) a channel in flow communication with the mixing chamber, gas being drawn from the mixing chamber through the channel to form a vacuum therein.