Aerosol extrusion mechanism
September 28, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3259077 3669104 Medication delivery system phase two Thermoelectric chiller and automatic syringe Automatic aerosol medication delivery system and methods Delivery of aerosol medications for inspiration Method for correcting the drift offset of a transducer Inhalation device Dry powder inhalers Intrapulmonary drug delivery within therapeutically relevant inspiratory flow/volume values InventorAssigneeApplicationNo. 162262 filed on 09/28/1998US Classes:604/62, Solid units successively fed to conduit from supply means (e.g., magazine, etc.)128/200.14LIQUID MEDICAMENT ATOMIZER OR SPRAYERExaminersPrimary: McDermott, CorrineAssistant: Finkel, Sharon Attorney, Agent or FirmForeign Patent References
International ClassA61M 011/00AbstractDevices for the generation of inhalable aerosols by extrusion through a porous membrane by a motor-driven cam assembly are disclosed. The device holds a drug formulation container in a drug release position. The package is comprised of a collapsible wall with an opening and a cover for the opening that includes a porous membrane having a plurality of pores therein with a diameter in the range of 0.5 to 6.0 microns. An electric motor in the device is powered by a battery to rotate a cam assembly having three cams. The first cam forces a clamping member (configured to correspond to the outer periphery of the container) against the periphery of the collapsible wall of the container, sealing the jointure of the collapsible wall to the cover of the container along the entire periphery, except for a small unsealed portion thereof. The second cam crushes the collapsible wall, forcing the contents of the container through the unsealed portion of the jointure. The third cam operates to move the empty container out of the drug release position, while moving a new container into position.Field of SearchMeans for placing solid treating material in bodyPowder dispenser Means for ejecting solid from holder Solid units successively fed to conduit from supply means (e.g., magazine, etc.) Multidose type Treating material forced into or out of body by self-acting fluid pressure, motor-driven, or mechanical energy storing means (e.g., pressure infusion or aspiration, etc.) Material impelled by pump Reciprocating piston type Mechanical means (e.g., piston, clamp, etc.) moved to collapse reservoir Having plural material reservoirs Means broken, cut, pierced, or torn to permit material flow to body Eject means moved by force applied to trigger associated with pistol grip LIQUID MEDICAMENT ATOMIZER OR SPRAYER Rotating Means for selectively dispensing different fluids Pre-pressurized container holding medicament | |
