초록 ▼

A capsule for dental amalgam comprises a reservoir portion which has an open end and which contains the silver or silver alloy powder component of the amalgam and a cap portion which has an open end which is meant for containing the liquid or mercury component of the amalgam. A preferably funnel-sha

A capsule for dental amalgam comprises a reservoir portion which has an open end and which contains the silver or silver alloy powder component of the amalgam and a cap portion which has an open end which is meant for containing the liquid or mercury component of the amalgam. A preferably funnel-shaped partition is fixed to the cap portion for retaining the mercury component therein. An orifice is provided in the base of the funnel-shaped partition. The orifice is of a size to prevent leakage of the mercury when the capsule is exposed to accelerations which are below a threshold value and which are typical for storage and transport of the capsule. When the capsule is exposed to acceleration above this threshold value, for example, when the capsule is placed in an amalgamator for mixing the components with each other, the mercury is forced through the orifice and into the powder component. After the amalgam is prepared, the cap can be removed along with its partition to expose the amalgam which is immediately ready for use.

대표청구항 ▼

A capsule for dental amalgam comprising: a capsule member defining a closed interior space; and yielding partition means fixed to said capsule member and extending across said space to divide said space into a first compartment for a powder component of the amalgam and a second compartment for a liq

A capsule for dental amalgam comprising: a capsule member defining a closed interior space; and yielding partition means fixed to said capsule member and extending across said space to divide said space into a first compartment for a powder component of the amalgam and a second compartment for a liquid component of the amalgam, said yielding partition means being structured to retain the liquid component in the second compartment when the capsule is exposed to acceleration below a threshold value and for allowing the liquid component to pass to the first compartment when the capsule is exposed to acceleration above the threshold value; said yielding partition means comprising a partition having an orifice therethrough of a size to prevent passage of liquid component from said second compartment to said first compartment when the capsule is exposed to acceleration below said threshold value and permitting passage of the liquid component through the orifice when the capsule is exposed to acceleration above said threshold value.