Pressure-activated medication dispenser
First Claim
Patent Images
1. A drug dispenser adapted to be sealingly connected to a pressurizable diluent container so as to transfer diluent between said container and said drug dispenser, comprising in combination:
- (a) a drug vial having a neck and a throat within said neck;
(b) a stopper seated in and sealing said throat;
(c) a normally closed valve adjacent to and extending over said stopper and further sealing said throat; and
(d) means for effecting pressurized communication between said container and said drug dispenser, said drug dispenser being characterized in that said valve can be opened and said stopper can be dislodged from said throat by pressurizing said container.
6 Assignments
0 Petitions
Accused Products
Abstract
A drug dispenser comprising a drug vial to whose neck a hollow spike is attached for insertion into a diluent container, with a jaw around the spike grasping the inlet port of the container. A stopper seals the vial'"'"'s throat, and a two-way value covers its mouth. The valve is opened, and the stopper is blown from the vial'"'"'s throat by squeezing the diluent container, thereby sending diluent under pressure through the hollow spike, the open valve, and the unobstructed throat into the vial.
67 Citations
18 Claims
-
1. A drug dispenser adapted to be sealingly connected to a pressurizable diluent container so as to transfer diluent between said container and said drug dispenser, comprising in combination:
-
(a) a drug vial having a neck and a throat within said neck; (b) a stopper seated in and sealing said throat; (c) a normally closed valve adjacent to and extending over said stopper and further sealing said throat; and (d) means for effecting pressurized communication between said container and said drug dispenser, said drug dispenser being characterized in that said valve can be opened and said stopper can be dislodged from said throat by pressurizing said container. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A drug dispenser adapted to be sealingly connected to a pressurized diluent container so as to transfer diluent between said container and said drug dispenser, comprising in combination:
-
(a) a drug vial having a neck and a throat within said neck; (b) a stopper comprising a hollow cylinder divided by a radially-extending wall into first and second cylindrical wall portions respectively defining first and second chambers open in axially-opposite directions and terminating in first and second rims respectively, seated in and sealing said throat; (c) a normally closed valve extending over said stopper and further sealing said throat; and (d) means for effecting pressurized communication between said container and said drug dispenser, said drug dispenser being characterized in that said valve can be opened and said stopper can be dislodged from said throat by pressurizing said container. - View Dependent Claims (10, 11)
-
-
12. A drug dispenser adapted to be sealingly connected to a pressurizable diluent container which includes a neck having a port sealed by a penetratable stopper and surrounded by a peripheral rim, so as to transfer diluent between said container and said drug dispenser, comprising in combination;
-
(a) a drug vial having a neck and a throat within said neck; (b) a stopper seated in and sealing said throat; (c) a normally closed valve extending over said stopper and further sealing said throat; (d) a spike having an axially-extending bore in at least one opening extending through the wall of said spike from said bore, said spike permitting pressurized communication between said container and said drug dispenser, and (e) a jaw member having a set of axially-extending resilient arms surrounding said spike and extending generally parallel therewith, said arms terminating in reentrant teeth adapted to latch onto said rim when said spike is jabbed through said penetratable stopper, said drug dispenser being characterized in that said valve can be opened and said stopper can be dislodged from said throat by pressurizing said container. - View Dependent Claims (13, 14, 15, 16, 17, 18)
-
Specification