Apparatus for concentrating and filtering body cavity fluids
US4416772A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 24, 1981 |
| Grant date | Nov 22, 1983 |
| Priority date | — |
| Expiry date | Jul 24, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S128/03
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Body cavity fluids, such as ascitic fluid and pleural fluid, are concentrated and filtered to remove bacteria and cancer cells, and the filtered concentrate is returned to the patient intravenously. The concentration and filtration are performed batch-wise, with the concentration being done before the filtration. The apparatus for concentrating and filtering includes a first container for holding the body fluid, a second container for holding the final filtered concentrate, a filter, a concentrator, a pump and two branched tubes connected to the filter and the concentrator which tubes can be selectively closed for concentrating and filtering the body fluid. The fluid outlet of the first container is designed to help prevent precipitated fibrin from passing out of the container and blocking the concentrator or filter membranes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.