Abbott Laboratories Corporation

John A O'Neil

John M Hofstetter

Richard W Grabenkort

A prefilled, two-constituent system is provided with first and second containers or barrels. The first barrel includes a first chamber having a dispensing end or delivery end. The delivery end defines a dispensing passage or delivery passage communicating through the delivery end to accommodate the dispensing of fluid from the first chamber. A movable seal or reciprocable stopper is slidably disposed in the first chamber, and a first constituent is provided in the first chamber between the delivery end and the stopper. A second container or barrel is sized to be disposed in the first barrel and has a discharge end defining a discharge passage communicating through the discharge end to accommodate the discharge of fluid from the second barrel. A plunger is slidably disposed within the second barrel. A liquid second constituent is provided in the second barrel between the discharge end and the plunger. The first barrel stopper and the second barrel discharge end are engageable directly or indirectly to cooperatively define a coupling accommodating the flow of the liquid second constituent from the second barrel into the first chamber of the first barrel as the second barrel moves outwardly relative to the first chamber.

Syringe system accomodating seperate prefilled barrels for two

A prefilled, two-constituent system is provided with a syringe barrel having a dispensing end with an inwardly directed, stationary, piercing cannula. Within the syringe barrel is a first, sealed, collapsible container holding a first constituent at subatmospheric pressure. The first container is slidably disposed within the syringe barrel adjacent the piercing cannula. A second, sealed, collapsible container holding a liquid second constituent is slidably disposed within the syringe barrel spaced from the first container. A carrier is slidably disposed within the syringe barrel between the first and second containers. The carrier has a double-ended, hollow, piercing needle with oppositely extending first and second ends for piercing the first and second containers, respectively. A plunger is slidably mounted within the syringe barrel for applying a force to the second container.

Prefilled, two-constituent syringe

A prefilled, two-constituent system is provided with first and second containers. The first container includes a first chamber having a dispensing end. The dispensing end defines a dispensing passage communicating through the dispensing end to accommodate the dispensing of fluid from the first chamber. A movable seal is slidably disposed in the first chamber, and a first constituent is provided in the first chamber between the dispensing end and the seal. A second container includes a barrel that is sized to be disposed in the first container and that has a discharge end defining a discharge passage communicating through the discharge end to accommodate the discharge of fluid from the barrel. A plunger is slidably disposed within the barrel. A liquid second constituent is provided in the barrel between the discharge end and the plunger. The first container seal and the second container barrel discharge ends are engageable to cooperatively define a coupling accommodating the flow of the liquid second constituent from the second container barrel into the first chamber of the first container as the barrel moves outwardly relative to the first chamber.

Growing community of inventors

Mundelein, IL, United States of America

John A O'Neil