Canister dosage indicator device
US8387617B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Sep 15, 2010 |
| Grant date | Mar 5, 2013 |
| Priority date | — |
| Expiry date | Jul 23, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/584
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A canister dosage indicator device for counting the number of doses dispensed from a canister. The device features a canister holder having a canister holding portion disposed at the top end and a diaphragm below the canister holding portion. The diaphragm can move between multiple positions including a disengaged position and an engaged position, wherein pressing of a canister in the canister holding portion of compresses the diaphragm to the engaged position. Electrical contacts are disposed on the diaphragm wherein when the diaphragm is in the engaged position the electrical contacts physically contact. A digital counter circuit is connected to the electrical contacts. When the diaphragm moves to the engaged position the count of the digital counter circuit increases by one. A display displays the count of the digital counter circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.