Analytical microsyringe with a superelastic plunger
US5063025A · kind A · utility
30Cited by
2References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 20, 1990 |
| Grant date | Nov 5, 1991 |
| Priority date | — |
| Expiry date | Feb 20, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/31531
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An analytical microsyringe includes a syringe body, an injection needle fixed to the inner surface at one end of the syringe body, a linear plunger formed of superelastic wire and a knob integrally fixed to the rear end of the linear plunger. The linear plunger has the front end thereof formed to have a diameter large enough to tightly and slidably contact the inner surface of the syringe body and a portion thereof other than the large-diameter front end formed to have a smaller diameter and keep clear of the inner surface of the syringe body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.