High volume cartridge and material delivery system
US10722327B2 · kind B2 · utility
2Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2018 |
| Grant date | Jul 28, 2020 |
| Priority date | — |
| Expiry date | Aug 2, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/3142
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A cartridge having a plunger cylinder with an external diameter smaller than a piston cylinder internal diameter. The cartridge has a plunger cylinder adapted to fit within a breach opening of a syringe. The piston cylinder having a larger internal diameter than the external diameter of the plunger cylinder, the cartridge is capable of holding a larger volume of material in the piston cylinder than could be held in the plunger cylinder fitted within the syringe breach opening. A piston placed in the piston cylinder has a concave surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.