Microfiltration device for the filtration of coagula and microag

Details Microfiltration device for the filtration of coagula and microag Microfiltration device for the filtration of coagula and microag

1982-09-29

1984-05-22

Wyse, Thomas G.

Liquid purification or separation

Diverse distinct separators

Including a filter

210338, 210342, 210448, 210489, 210927, B01D 2504, B01D 3916

Patent

active

044500785

ABSTRACT:
A microfiltration device for the filtration of coagula and microaggregates from blood and blood components. The device contains a filter chamber with attaching nozzle, a filter cone containing truncoconical filter elements arranged in cascade with diminishing pore size and diminishing surface area, a drip chamber and a tailpiece. The filter chamber and filter cones have different tapers and are at a specific distance apart, the taper of the filter cone from inlet to outlet being greater than the taper of the filter chamber. The filter cone has up to four filter elements, and a spacer which extends into the filter element of smallest pore size and surface area and supports same. Each of the filter elements has at least two opposed ribs running from the base to the apex of the truncated cone. The spacer is constructed such that it serves simultaneously for the support of the ribs and for the support of the filter fabric of the smallest filter element. The device has a capacity of less than 100 ml. It is intended for use in transfusions of preserved blood or blood components, especially massive transfusions.

REFERENCES:
patent: 4087363 (1978-05-01), Rosemeyer et al.
patent: 4243535 (1981-01-01), Behrends et al.

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