Powder delivery device
AssigneeProfibrix B.V.
InventorsPaul Greenhalgh, Joseph Maria Grimbergen, Oliver Harvey
Life of this patent
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Abstract
A device for the topical dispensing of a powder, typically a powder medicament, comprises, or is adapted to be coupled to, a powder receptacle and a gasflow generator. The gasflow generator is adapted, in use, to cause gas to flow through the device, which further comprises an agitator by which the powder and/or the powder receptacle can be mechanically agitated. Actuation of the gasflow generator, which causes gas to flow through the device and to entrain powder from the powder receptacle, thereby to dispense powder from the device, is accompanied by actuation of the agitator, causing the powder receptacle to be mechanically agitated, thereby facilitating the release of powder from the powder receptacle.
Claims19
A device for the topical dispensing of a powder comprising:
- a powder receptacle storing the powder;
- a gasflow generator adapted, in use, to cause gas to flow through the device, the gasflow generator being external to the device and comprising a connector which is adapted to be coupled to the gasflow generator;
- an actuator;
- a trumpet valve;
- and
- an agitator configured to mechanically vibrate the powder receptacle to release powder from the powder receptacle,
- the gasflow generator, the actuator, the valve and the agitator being operably linked such that actuation of the actuator causes the valve to open, permitting gas to flow through the device, actuating the agitator to cause the receptacle to be mechanically vibrated to release the powder and to entrain the powder that has been released from the powder receptacle in the gas flow, thereby to dispense powder from the device, wherein the agitator is driven by the gasflow, such that the agitator operates for as long as the valve is open and the gas flows and is disengaged when the flow of gas is halted, and wherein the agitator includes a moveable agitator element that is positioned within a path of the gasflow,
- wherein the powder is a haemostatic composition and the device is configured to dispense powder through a gas flow outlet to internal tissues exposed during surgical procedures or after traumatic injury, the powder being dispensed from the powder receptacle until the actuator is selectively unactuated by a user.
A device for the topical dispensing of a powder comprising:
- a body;
- a powder receptacle storing the powder in fluid communication with the body;
- an agitator configured to vibrate the powder receptacle in response to a gas flow;
- a gas flow generator configured to generate the gas flow through:
- a first gas path entering the body configured to receive gas from a gas supply at one end of the first gas path to mechanically agitate the agitator and to exhaust the gas supply to atmosphere at another end of the first gas path;
- and
- a second gas path configured to direct a portion of the gas in the first gas path proximate the powder receptacle to entrain a quantity of powder released into the second gas path due to mechanical agitation by the agitator, the second gas path further configured to deliver the powder to a desired location;
- a valve;
- and
- an actuator, which is operably linked to the gasflow generator via the valve, and to the agitator, wherein the powder is dispensed to the desired location until the actuator is selectively unactuated by a user.
Dependencies are inferred from the claim text.