Medication delivery pen
US5957896A · kind A · utility
284Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 11, 1997 |
| Grant date | Sep 28, 1999 |
| Priority date | — |
| Expiry date | Aug 11, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/581
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An improved medication delivery pen is provided for injecting fluids such as insulin within body tissue. The medication delivery pen includes a mechanism that prevents the removal of a cartridge unless an injector button on the medication pen is in a predefined position, a bayonet attachment and an improved clutch assembly in a dose setting mechanism that provides improved control over the torque necessary to rotate a units counter ring in the medication delivery pen using a dose setting knob.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.