Integrated cardiotomy and venous blood reservoir
US5849186A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 1996 |
| Grant date | Dec 15, 1998 |
| Priority date | — |
| Expiry date | Nov 15, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M1/3632
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A blood reservoir for the treatment and collection of blood from two different sources. The blood reservoir has a filter/defoamer core assembly comprised of a support structure disposed within an outer defoamer. A separator with an opening is located in the support structure, dividing the support structure into a first and second portions. A depth filter is located within the first portion of the support structure. The first portion of the support structure with the depth filter forms a cardiotomy blood chamber and the second portion with no depth filter forms a venous blood chamber. This filter/defoamer core assembly is placed within a clear outer shell which forms the reservoir. This outer shell has a cover with a venous blood inlet and plurality of cardiotomy inlets. The cardiotomy inlets are in fluid communication with the cardiotomy blood chamber. The venous blood inlet is in communication with a center tube which extends through the first portion of the support cage, through the opening in the separator and opens into the venous blood chamber. The filter/defoamer core assembly may be assembled and positioned within the reservoir shell without the use of adhesives or bonding a…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.