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US 2014/0276534 A1Published application
Needleless injector
AssigneeNova Pneumatics LLC
InventorMichael Wood
Life of this patent
Estimating the term…
Abstract
A needleless injector includes an injector body having first and second opposite ends. There is a first piston disposed within the body. A second piston may also be disposed within the body configured with a second end for housing a nozzle. There is a medicine inlet for receiving medicine and a pressurized fluid inlet for receiving pressurized fluid. There is also a trigger for releasing the pressurized fluid to drive the first piston thereby driving the medicine through the nozzle for needleless delivery.
Claims20
A needleless injector, comprising:
- an injector body having first and second opposite ends;
- a first piston disposed within the body;
- a second piston disposed within the body;
- a nozzle at a second end of the body;
- a medicine inlet for receiving medicine;
- a pressurized fluid inlet for receiving pressurized fluid;
- a trigger for releasing the pressurized fluid to drive the first piston thereby driving the second piston and thereby driving the medicine through the nozzle for needleless delivery.
4 more elements
A needleless injector, comprising:
- an injector body having first and second opposite ends;
- a first piston disposed within the body;
- a nozzle at a second end of the body;
- a medicine inlet for receiving medicine within a control volume between the first piston and the nozzle;
- a pressurized fluid inlet for receiving pressurized fluid;
- a trigger for releasing the pressurized fluid to drive the first piston to a triggered position driving the medicine from the control volume through the nozzle for needleless delivery;
- a valve disposed in the control volume for selectively controlling an injection pressure profile for the medicine;
- a dispensing pressure profile in the control volume comprising a collapsed injection pressure profile for delivering the medicine.
5 more elements
A method for needleless injection, the method comprising:
- providing a needleless injector comprising (a) an injector body having first and second opposite ends, (b) a first piston disposed within the body, (c) a nozzle at a second end of the body, (d) a medicine inlet for receiving medicine within a volume within the body, (e) a pressurized fluid inlet for receiving pressurized fluid, and (f) a trigger for releasing the pressurized fluid to drive the first piston;
- generating an injection pressure profile within the volume;
- collapsing the injection pressure profile to create a dispensing pressure profile;
- driving one or more pistons to collapse the injection pressure profile;
- delivering medicine through the nozzle during the collapsing step;
- and
- triggering the trigger to release the pressurized fluid.
4 more elements
Dependencies are inferred from the claim text.