摘要 |
A capsule of essentially rigid material for the storage and vibration mixing of two components for dental uses comprises a mixing chamber in which one of the components is stored, the chamber having an aperture which is closed by means of a removable closure member and a foil bag of a synthetic polymeric material and containing mercury as the other of the components which bag can be ruptured without disintegration by the vibration mixing provided by conventional dental vibration mixers due essentially solely to the forces produced by the inertia of the mercury is housed and is free moveable in the mixing chamber. The closure member is sealingly secured to that part of the capsule which forms the mixing chamber by a seal which has a predetermined breaking strength, formed conveniently by a weld or adhesive. Externally the closure member presents a cylindrical socket to which can be fitted a cylindrical lever for the purpose of breaking the seal to remove the closure member and allow access to the interior of the mixing chamber for withdrawal of the mix. |