Compressible syringe
US6332876A · kind A · utility
Inventors
Key dates
| Filing date | Sep 8, 1997 |
| Grant date | Dec 25, 2001 |
| Priority date | — |
| Expiry date | Sep 8, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/3118
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A compressible syringe including a bellows, the rearward frusto-conical bellows walls are thicker than the forward frusto-conical bellows walls, the walls converge in an apex with the rearward frusto-conical wall at a first included angle with respect to a plane perpendicular to the longitudinal axis of the syringe and intersecting the apex and with the forward frusto-conical wall being at a second included angle with respect to the plane and with the first included angle being greater than the second included angle, the bellows rings increase in diameter successively from the rearward to the forward portion of the syringe and a fracture closure seal formed integrally with the syringe nozzle is provided and is connected to the syringe body by an elongate pliable tether.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.