Calcium hydroxide package and method of forming same

Details Calcium hydroxide package and method of forming same Calcium hydroxide package and method of forming same

1996-12-12

1998-10-13

Sewell, Paul T.

Special receptacle or package

Including ancillary article contacting medium

For tool or appliance

206 635, 206368, 53173, A61C 504

Patent

active

058199217

ABSTRACT:
A calcium hydroxide package and method of forming the package that includes a sealed vial containing a capsule having a connected needle forming a nozzle which is open at the discharge end. The capsule is prefilled with a predetermined amount of calcium hydroxide formulation that is confined within the capsule by an end plug that functions as a piston to extrude the calcium hydroxide formulation from the capsule and directly to the tooth when used. Disposed within the sealed vial containing the capsule, prefilled with the calcium hydroxide formulation, is a quantity of preservative liquid or distilled water saturated with calcium hydroxide to prevent dehydration or decomposition of the calcium hydroxide formulation during shipping or storage, and wherein the vial with the capsule and liquid sealed therein can be subsequently sterilized by gamma radiation to ensure sterility of the calcium hydroxide and to prevent growth in the sealed container containing distilled water. In another form of the invention, the packaged is formed as a tray having multiple chambers, each of which contains pre-loaded capsules and a quantity of preservative liquid whereby the respective chambers are sealed by an overlying cover sheet.

REFERENCES:
patent: 1280687 (1918-10-01), Dudley
patent: 1307249 (1919-06-01), Franklin
patent: 1378806 (1921-05-01), Ausubel
patent: 2558742 (1951-07-01), Ericsson et al.
patent: 2812231 (1957-11-01), Zar
patent: 4942966 (1990-07-01), Kemp
patent: 5336088 (1994-08-01), Discko, Jr.

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