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US 5,564,414 AGranted
Pressurized and metered medication dose counter on removable sleeve
OwnerWilliam F. Walker, Elizabeth M. Walkerinventors
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OwnerWilliam F. Walker, Elizabeth M. Walkerinventors
Estimating the term…
A system delivers a number of safe doses from a pressurized and metered medication canister via a dispenser to a patient. The improvement includes a counter device for accurately determining the number of safe doses delivered from the medication canister. Also, a warning device alerts the patient either visually, audibly, mechanically or in a combination thereof about an impending and then a final exhaustion of the number of safe doses delivered from the medication canister. The improved system takes advantage of the patient-actuated movement of the medication canister in the dispenser body to activate either an electronic or a mechanical counter device. Alternatively, the improved system may be patient-activated independently from, but in conjunction with, the dispensing of medication from the canister.
A system for delivering a number of safe doses of respiratory medication to a patient from a pressurized and metered medication canister mounted inside a manufacturer's dispenser body having a noncounting dispenser, wherein the system comprises:
A system for delivering a number of safe doses of respiratory medication to a patient from a pressurized and metered medication canister mounted inside a manufacturer's dispenser body having a noncounting dispenser, said system including means for counting accurately the number of safe doses delivered from the medication canister, means for informing the patient about the number of safe doses remaining in the medication canister, and an external plunger-type trigger rod means for activating automatically the counting means when the trigger rod means is depressed, wherein the improvement comprises:
Dependencies are inferred from the claim text.