Safety vent structure for extracorporeal circuit
US7938967B2 · kind B2 · utility
5Cited by
40References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2008 |
| Grant date | May 10, 2011 |
| Priority date | — |
| Expiry date | Dec 21, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/7563
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A vent assembly is described for use in an extracorporeal fluid unit. A vent structure adjacent to a micro-porous membrane forms the assembly. The vent structure is porous, but expands when the vent structure becomes wet, thereby closing off the pores and inhibiting (e.g., preventing) fluid from flowing through the vent structure. The vent structure also protects the membrane from becoming wet, such as from condensation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.