Dose indicator
First Claim
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1. A dose indicator, comprising:
- a housing having an upper portion and a lower portion;
a spring element structured to moveably connect the upper portion with the lower portion; and
a control module received within the housing and adapted to index a count each time the dose indicator is cycled.
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Abstract
An apparatus and method for tracking the amount of medicament remaining with a metered dose inhaler. A dose indicator for a metered dose inhaler includes a housing having an upper portion and a lower portion, a spring element structured to moveably connect the upper portion with the lower portion, and a control module received within the housing and adapted to index a count representative of the number of doses of medicament remaining within the metered dose inhaler each time the dose indicator is cycled.
62 Citations
22 Claims
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1. A dose indicator, comprising:
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a housing having an upper portion and a lower portion;
a spring element structured to moveably connect the upper portion with the lower portion; and
a control module received within the housing and adapted to index a count each time the dose indicator is cycled. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A drug delivery system, comprising:
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a metered dose inhaler, comprising;
a body;
a canister insertable into the body, wherein the canister is adapted to hold a medicament therein, and wherein the canister includes a stem structured to cause the canister to release a dose of the medicament when the metered dose inhaler is fired; and
a dose indicator connectable to the canister without restricting airflow into the body and structured to indicate a count representative of an amount of medicament within the canister, the dose indicator comprising;
a housing having an upper portion and a lower portion;
a spring element structured to moveably connect the upper portion with the lower portion; and
a control module received within the housing and adapted to index the count each time the dose indicator is cycled. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A method for tracking an amount of medicament within in a canister for a metered dose inhaler, the method comprising:
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programming a count representative of a number of doses of medicament within the canister into a dose indicator, wherein the dose indicator comprises;
a housing having an upper portion and a lower portion;
a spring element structured to moveably connect the upper portion with the lower portion; and
a control module received within the housing and adapted to index the count each time the dose indicator is cycled;
connecting the dose indicator to the canister;
detecting when the dose indicator is cycled; and
responsive to the detecting, indexing the count. - View Dependent Claims (20, 21, 22)
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Specification