Filtration assembly for peridural anesthesia
US4902415A · kind A · utility
3Cited by
2References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 19, 1988 |
| Grant date | Feb 20, 1990 |
| Priority date | — |
| Expiry date | Jul 19, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/1657
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A filtration apparatus suitable for use in peridural anesthesia formed of two mating sections and a membrane positioned between and supported by the sections. Each section has an liquid inlet or liquid outlet and are joined together to form a chamber therebetween. The membrane is positioned at an angle between about 5.degree. and 15.degree. relative to the axes of the inlet and outlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.