Patent ID: 7686777

Claim:
An in-vitro blood plasma lipids filtering method, comprising the following steps: collecting blood from a patient by a blood collecting device; separating blood plasma from the collected blood by a blood separating device connected to the blood collecting device, wherein the separated blood plasma enters a pre-filtered blood plasma bag which includes an automatic weight or volume detection device for transmitting a signal that triggers a stop response to the blood separating device or the blood collecting device when the pre-filtered blood plasma bag is full; flushing a blood plasma lipids filtering device connected to the pressure control device with saline solution from a saline solution treatment bag connected to an outlet of the pre-filtered blood plasma bag, wherein the flushed saline solution from the blood plasma lipids filtering device flows into a waste saline solution bag connected to the blood plasma lipids filtering device; controlling pressure of the separated blood plasma from the pre-filtered blood plasma bag by a pressure control device connected to the pre-filtered blood plasma bag; passing the separated blood plasma through the blood plasma lipids filtering device for filtering out lipids of the separated blood plasma, wherein the blood plasma lipids filtering device comprises multi-layers of thin film membranes of which at least a first film is a membrane excluding hollow fibers of hollow fiber contactor (HFC) and having filter aperture pores of about 0.3 to 0.65 microns and comprises a lipid absorptive material for filtering out lipids of the separated blood plasma, a second film is a membrane that has filter aperture pores of about 0.3 microns for filtering out bacterium and chyle-lipoprotein, and a third film is a membrane that has filter aperture pore of about 0.2 microns and comprises nylon as a base material for filtering out foreign particles generated from the first and second filtering processes, wherein the foreign particles include thin film wood-pulp material or adsorptive particles, wherein at least one additional first film is further interposed between the second and third films, and wherein the lipid absorptive material of the first film and the additional first film comprises silicon oxide pellets; collecting the filtered blood plasma by a post-filtered blood plasma bag connected to the blood plasma lipids filtering device; controlling the temperature of the filtered blood plasma from the post-filtered blood plasma bag by a temperature control device connected to the post-filtered blood plasma bag; and feeding the filtered blood plasma back to the blood of the patient by a blood plasma feedback device connected to the temperature control device.