DEGASSING MEMBRANE FOR DIALYSIS

摘要

The degasser can have a degassing membrane that can be constructed from non-porous silica. The degassing membrane can be highly permeable to carbon dioxide but less permeable oxygen or nitrogen gases. Pressure in the dialysate and the degasser can be controlled in order to control the amount of carbon dioxide and other gases in dialysate leaving the degasser. The degassing membrane may be placed in a degassing module in a dialysate flow path to remove dissolved carbon dioxide from the dialysate.

主权项

1. A degassing system, comprising:
a degassing vessel having a dialysate passage exposed to a first side of a degassing membrane having a permeability coefficient of carbon dioxide greater than the permeability coefficient of oxygen and/or nitrogen; the membrane positioned in the degassing vessel to contact a dialysate containing dissolved carbon dioxide; a shell side of the degassing vessel exposed to a second side of the degassing membrane for removing gas; and a vacuum pump connected to the shell side of the degassing vessel to create a low pressure vacuum on the second side of the degassing membrane.