Method of blood-gas interface control in surgical gas traps
US4976685A · kind A · utility
66Cited by
15References
5Claims
0Family size
Inventor
Key dates
| Filing date | Jun 15, 1988 |
| Grant date | Dec 11, 1990 |
| Priority date | — |
| Expiry date | Jun 15, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/1412
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Blood is stored under refrigeration at a temperature of about 4.degree. C. When it is utilized on a relatively rapid basis within a surgical theater it is transported by tubing through a blood warming apparatus which, while warming the blood, causes an outgasing of entrained air. This air is trapped in an air trap receptacle having a drip chamber within which a gas-blood interface is developed. To assure that the capacity of the trap is not exceeded, an improved technique of gas removal and interface level setting is provided wherein access is achieved essentially through the entrance region of the gas trap receptacle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.