End of dose indicator
US5391157A · kind A · utility
195Cited by
26References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 20, 1992 |
| Grant date | Feb 21, 1995 |
| Priority date | — |
| Expiry date | Oct 20, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/581
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention provides an improvement in injection syringes by providing for an end of dose indicator which is operatively associated with the dose knob of an injection syringe. The instant end of dose indicator works by providing a sound as an indication that the complete dose has been administered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.