ADSORBING PATHOGEN-INACTIVATING COMPOUNDS WITH POROUS PARTICLES IMMOBILIZED IN A MATRIX

摘要

Methods and devices are provided for reducing the concentration of low molecular weight compounds in a biological composition containing cells while substantially maintaining a desired biological activity of the biological composition. The device comprises highly porous adsorbent particles, and the adsorbent particles are immobilized by an inert matrix. The matrix containing the particles is contained in a housing, and the particles range in diameter from about 100 μm to about 1500 μm. The device can be used to adsorb and remove a pathogen-inactivating compounds from a biological composition such as a blood product.

主权项

1. A pathogen-inactivating compound adsorption system for reducing the concentration of a low molecular weight pathogen-inactivating compound in an aqueous biological composition containing cellular elements, wherein the pathogen-inactivating compound adsorption system comprises a housing compatible with the biological composition containing an adsorption medium comprising porous adsorbent particles immobilized within a sintered matrix formed from polymeric particulate material, wherein the diameter of the adsorbent particles ranges from about 100 μm to about 1500 μm, wherein the adsorbent particles have an affinity for said pathogen-inactivating compound, wherein the system is configured to remove said pathogen-inactivating compound from said biological composition in a batch process, and wherein the system is configured so that the cellular elements in the biological composition treated with the system maintain sufficient biological activity so that said biological composition is suitable for infusion within a human, the system further comprising a particle retention medium downstream of the adsorption medium, wherein said particle retention medium retains particles shed from said adsorption medium.