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US 5,188,801 AGranted
Device for the treatment of blood
AssigneeCortek, Inc.
InventorMassimo Fini
Life of this patent
Estimating the term…
Abstract
The invention relates to a blood-treatment device including hollow fibers which are suitable for conveying a fluid and are in a plurality of superposed layers arranged in directions which are offset from layer to layer so as to create a uniform flow of blood from an inlet chamber adjacent one end layer of the plurality of superposed layers to an outlet chamber adjacent the other end layer, the blood passing through the layers in a direction substantially perpendicular thereto and bathing the external surfaces of the hollow fibers.
Claims10
A blood treating device comprising:
- (i) a housing within which blood flows for treatment by diffusion using porous hollow fibers located within the housing,
- (ii) fluid inlet means defining space and fluid outlet means defining space that are oppositely located along a longitudinal axis of said housing,
- (iii) a fluid inlet opening into the fluid inlet means defining space and a fluid outlet opening into the fluid outlet means defining space,
- (iv) an inlet and outlet chamber oppositely placed in said housing, each lateral of said fluid inlet and fluid outlet means defining spaces,
- (v) a blood inlet and a blood outlet connected to said housing, the blood inlet opening into the inlet chamber and the blood outlet opening into the outlet chamber,
- (vi) one or more frames, constructed and arranged to allow blood to pass therethrough, located in the housing between opposing walls thereof and between the chambers, with ends thereof facing the fluid inlet and fluid outlet means defining spaces, wherein a width and length of each frame is essentially equal to a width and length of each of the inlet and outlet chambers,
- (vii) bands of hollow fibers wrapped around each frame so that portions of the bands are located on the sides of each frame facing said inlet and outlet chambers and the opposing walls of the housing, and defining open ends at the ends of the frame facing the fluid inlet and fluid outlet means defining spaces, which bands comprise a plurality of superposed layers of hollow fibers wherein each alternating layer of the hollow fibers is inclined at a different angle relative to the longitudinal axis of the housing,
- (viii) fibers, at one end of the frame facing the fluid inlet means defining space, are openly connected to that space and fibers, at the other end of the frame facing the fluid outlet means defining space, are openly connected to that space, and
- (ix) a blood flow path from the inlet chamber, around and between fibers of the superposed layers of hollow fibers between the opposing walls and into the outlet chamber.
6 more elements
Dependencies are inferred from the claim text.