Electrostatic blood defoamer for heart-lung machines
US5879317A · kind A · utility
2Cited by
6References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 29, 1997 |
| Grant date | Mar 9, 1999 |
| Priority date | — |
| Expiry date | May 29, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M1/36
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In a heart-lung machine, blood is defoamed without the use of defoaming chemicals by passing blood between parallel insulated electrodes whose electric field orients the blood protein molecules to break up the foam bubbles. The blood then passes into the venous reservoir through a bubble screen which traps any remaining bubbles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.