Blood sample collection tube
US11116695B2 · kind B2 · utility
1Cited by
621References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2019 |
| Grant date | Sep 14, 2021 |
| Priority date | — |
| Expiry date | Jun 21, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/0238
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A blood sample collection tube and other vessels are described including an article surface and a coating set comprising a tie coating or layer of SiOxCy or SiNxCy applied to the article surface, a barrier coating or layer of SiOx, and a pH protective layer of SiOxCy or SiNxCy. The vessels optionally contain a fluid with a pH of 4 to 8, alternatively 5 to 9. The barrier coating or layer prevents oxygen from penetrating into the thermoplastic vessel, and the tie coating or layer and pH protective coating or layer together protect the barrier layer from the contents of the vessel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.