Prefilled syringe, syringe assembly, method for manufacturing prefilled syringe, and method for increasing surface area
US11819665B2 · kind B2 · utility
1Cited by
1References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2021 |
| Grant date | Nov 21, 2023 |
| Priority date | — |
| Expiry date | Dec 15, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2207/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A prefilled syringe includes a barrel body, a gasket that seals a proximal end side of a medicine chamber of the barrel body, and a cap that is attached to a tip and seals a distal end side of the medicine chamber. The cap includes a surface area increasing member that extends to the proximal end side, is inserted into a flow path of the tip, and protrudes to the medicine chamber to increase a surface area of a medicine solidified in a lump in the medicine chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.