Syringe barrel, method for manufacturing same, and pre-filled syringe
US11554220B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 12, 2018 |
| Grant date | Jan 17, 2023 |
| Priority date | — |
| Expiry date | Apr 27, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2207/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A syringe barrel includes: a barrel body including a nozzle portion at a distal end thereof; and a cap removably mounted to the nozzle portion and configured to seal a distal end opening of the nozzle portion. The cap includes: an inner cap formed of an elastic material and configured to come in liquid tight contact with the nozzle portion in a mounted state in which the cap is mounted to the nozzle portion, and a cylindrical outer cap formed of a material having a higher hardness than the inner cap and fixed around the inner cap. The inner cap includes: a base portion, and a cylindrical wall extending from the base portion in a proximal direction and surrounding the nozzle portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.