Body fluid processor enabling direct hemoperfusion
View Patent ↗A safe and practically useful body fluid processor whereby blood taken out from a patient can be directly processed, characterized by having a favorable passage of the blood cell and showing an extremely low risk of the generation and leakage of microparticles. Namely, a body fluid processor enabling direct hemoperfusion wherein the ratio of sedimented particles to the volume of the space in which the particles for processing body fluid are to be packed is 100% or less and the space in which the particles for processing body fluid are to be packed in the body fluid processor is filled with the particles for processing body fluid and a filling liquid at a ratio of 95% or more but not more than 100%.
1. A body fluid processor enabling direct hemoperfusion,
which comprises a vessel equipped with a fluid inlet, a fluid outlet and a mesh attached adjacent to said fluid outlet,
said vessel being packed with particles for processing body fluid and a filling liquid, and
said body fluid processor having a packing ratio of 85 to 100% and the space in which the particles for processing body fluid are to be packed in the body fluid processor being filled with the particles for processing body fluid and said filling liquid at a ratio of 95% or more but not more than 100%,
wherein said packing ratio is a value calculated by means of the following equation:
Packing ratio (%)= Va/Vj× 100
where Va represents a sedimentation volume of the particles for processing body fluid packed in the space in which the particles for processing body fluid are to be packed and Vj represents the volume of the space in which the particles for processing body fluid are to be packed, and
wherein the mean particle diameter of the particles for processing body fluid is 80 μm through 500 μm and the aperture size of the mesh is not less than 20 μm but less than ½ of the mean particle diameter of the particles for processing body fluid.
2. The body fluid processor enabling direct hemoperfusion according to claim 1 , wherein the particles for processing body fluid are hard particles.
3. The body fluid processor enabling direct hemoperfusion according to claim 1 , wherein a carrier for the particles for processing body fluid is a hydrophilic carrier.
4. The body fluid processor enabling direct hemoperfusion according to claim 1 , wherein a carrier for the particles for processing body fluid is a carrier made of a cellulosic material.