Medicament dispensing device
First Claim
Patent Images
1. A dispensing device for dispensing a medicant in metered doses in a drug delivery system comprising:
- a dispensing device body;
a sleeve disposed in said body and capable of receiving a medicant dispenser;
a means for releasing measured dose of medicant comprising a means for applying a preload force to said sleeve, a means for applying a resisting pneumatic force to said sleeve, and a release device capable of freeing the resisting pneumatic force.
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Accused Products
Abstract
A metered dose inhaler for use with a pressurised aerosol container which is preferably breath-actuated. A preload (80) is applied to the internal aerosol valve by an amount sufficient to result in a dose release, but this is prevented by the application of a pneumatic resisting force (130). The inhaler comprises a release device (110) which, upon actuation, releases the resisting force and allows the preload to actuate the aerosol valve (135). A metered dose of medicament is then released for inhalation by the patient.
261 Citations
24 Claims
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1. A dispensing device for dispensing a medicant in metered doses in a drug delivery system comprising:
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a dispensing device body; a sleeve disposed in said body and capable of receiving a medicant dispenser; a means for releasing measured dose of medicant comprising a means for applying a preload force to said sleeve, a means for applying a resisting pneumatic force to said sleeve, and a release device capable of freeing the resisting pneumatic force. - View Dependent Claims (2, 4, 5)
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- 3. An inhalation actuable dispensing device for use with a pressurised aerosol dispensing container comprising an inner sleeve capable of receiving a dispensing container, a means for applying a preload force to said sleeve capable of actuating an internal valve of an aerosol container to release a metered dose from a container, a means for applying a resisting pneumatic force to the sleeve capable of preventing actuation of an aerosol valve and an inhalation actuated release device capable of releasing the resisting pneumatic force to allow the preload to actuate an internal valve and allow a metered dose to be dispensed.
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19. A dispensing device for use with a drug delivery system comprising an inner sleeve capable of receiving a dispensing container, a releasing means for releasing a measured dose, preload means for applying a preload force to the sleeve and capable of actuating the releasing means, resisting means for applying a resisting pneumatic force to the sleeve capable of preventing actuation of the releasing means by the preload means, and preload release means for freeing the resisting pneumatic force to allow the preload to actuate the releasing means.
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20. A dispensing device for use with a drug delivery system comprising:
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a drug delivery system comprising a dispensing container capable of dispensing a metered dose; a means for releasing a metered dose; a sleeve capable of receiving said dispensing container; wherein said releasing means comprises a means for applying a preload force to said sleeve and capable of actuating said container in said system, a means for applying a resisting pneumatic force to said sleeve capable of preventing actuation of said container, and a release device capable of freeing said resisting pneumatic force to actuate said delivery system and dispense said metered dose.
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21. A dispensing device for use with an aerosol medicant container for dispensing a medicant in metered doses comprising:
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a main body with a first and second end; a sleeve comprising sides and a base; a diaphragm comprising a valve port operationally connected to said second end of said main body and said base of said sleeve; a spring operationally positioned in said second end of said main body so as to apply a preload force to said sleeve; and a vane operationally attached to said diaphragm wherein said vane has first and second positions, wherein when said vane is in said first position said vane seals said valve port and when said vane is in said second position said valve port is unsealed. - View Dependent Claims (22, 23, 24)
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Specification