Sterile syringe comprising a non-sliding seal
US11541181B2 · kind B2 · utility
0Cited by
2References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 25, 2018 |
| Grant date | Jan 3, 2023 |
| Priority date | — |
| Expiry date | Oct 2, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/02
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention discloses a sterile syringe (100) comprising a barrel (1) having internal surfaces (2), a plunger (3) movable within the barrel, a non-sliding seal (7) between the barrel and the plunger defining a sealed volume (8) and at least one filter (9) allowing only filtered gases to enter the sealed volume such that the syringe maintains its sterility even after several uses. The filters could be positioned on different locations on the syringe like on the non-sliding seal, the barrel, the barrel flange or the plunger handle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.