Multiple compartment ampule for automatic hypodermic syringes

Details Multiple compartment ampule for automatic hypodermic syringes Multiple compartment ampule for automatic hypodermic syringes

1985-11-15

1987-02-17

Yasko, John D.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604203, A61M 508

Patent

active

046437215

ABSTRACT:
An ampule for an automatic hypodermic syringe comprises at least two axially aligned and hermetically separated compartments containing respective medicated substances. A nipple member is disposed at one end of the ampule. A needle holder is slidably mounted in said nipple member and supports a hollow needle. An intermediate partition normally hermetically separates the two compartments. The intermediate partition has a valve member adapted to open a path of flow through the intermediate partition to bring the second of the compartments into communication with the needle hollow after a first of the compartments is substantially emptied. Preferably, there are two intermediate partitions and three compartments.

REFERENCES:
patent: 2939459 (1960-06-01), Lazarte et al.
patent: 3368558 (1968-02-01), Sarnoff et al.
patent: 3838689 (1974-10-01), Cohen
patent: 3911916 (1975-10-01), Stevens
patent: 4394863 (1983-07-01), Bartner
patent: 4424057 (1984-01-01), House

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