Apparatus for hypodermic injection of liquids
US5009637A · kind A · utility
64Cited by
15References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 1988 |
| Grant date | Apr 23, 1991 |
| Priority date | — |
| Expiry date | Nov 16, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/2053
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device to introduce a liquid into the hypoderma, the device includes a reservoir which receives a gas under pressure, the gas is delivered via a valve to an interacting piston and cylinder. When the gas is delivered to the piston, the piston moves to eject a liquid from a capsule mounted within the device. The liquid contained in the capsule is then ejected through a nozzle located against the skin of the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.