Method for testing dialyzer integrity before use

Details Method for testing dialyzer integrity before use Method for testing dialyzer integrity before use

A - Human Necessities

61

M

A61M 1/14 (2006.01) A61M 1/16 (2006.01) B01D 61/32 (2006.01) B01D 65/10 (2006.01)

Patent

CA 2233198

The present invention includes a method and apparatus for testing the integrity of a dialyzer (12) prior to use. The dialyzer (12) is tested in the same way as when used in the treatment of dialysis. The dialyzer (12) is primed in the normal manner. The arterial blood line (16) is clamped while the venous line (18) is vented to the atmosphere (44). The ultrafiltrate flow rate through dialyzer (12) is increased until a rate is achieved, so that blood passing through would be ultrafiltered. The dialyzer (12) is monitored for pressure increases. If the pressure does not increase the test fails.

La présente invention concerne un procédé et un appareil permettant de tester l'intégrité d'un appareil de dialyse (12) avant son utilisation. L'appareil de dialyse (12) est testé dans les mêmes conditions de fonctionnement que lors d'un traitement par dialyse, et amorcé de manière classique. La voie sanguine artérielle (16) est pincée tandis que la voie veineuse (18) donne dans l'atmosphère (44). Le débit de l'ultrafiltrat à travers l'appareil de dialyse (12) est augmenté jusqu'à atteindre un certain niveau de sorte que le sang qui le traverse puisse être ultrafiltré. On contrôle ensuite les hausses de pression dans l'appareil de dialyse (12), le test échouant dans le cas où la pression n'augmente pas.

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