| 摘要 |
An apparatus for preparing bone cement from two or more constituents contained in respective sealed containers comprises a housing defining an open first end and a closed second end opposite each other. A piston body is received within the housing defining an inner chamber of the housing. The apparatus further comprises at least two receptor assemblies communicating with the inner chamber of the housing through respective inlets which are shiftable between an open state and a closed state, in which open state communication is established from the receptor assemblies to the inner chamber of the housing, and in which closed state communication to the inner chamber of the housing through the inlets is blocked. Each of the receptor assemblies comprises a receptor for receiving a respective sealed container and for establishing a leakage-proof communication from within the respective sealed container to the inner chamber of the housing. The apparatus further comprises a stirring means received within the housing being operable from outside the housing and being movable within the housing and an ejector tube connected to the housing at the second end thereof. The ejector tube is shiftable between a first state and a second state, in which first state communication from the inner chamber of the housing through the ejector tube is blocked and in which second state communication from the inner chamber of the housing is established through the ejector tube to the environment. |
