Bio-artificial organ containing a matrix having hollow fibers for supplying gaseous oxygen
First Claim
1. A bio-artificial organ system comprising a wall surrounding a space, said space comprising:
- (a) a solid support for cell cultivation consisting of a three dimensional matrix in the form of a highly porous sheet or mat, wherein the three dimensional matrix comprises a physiologically acceptable network or fibers or a physiologically acceptable open pore foam structure, wherein the matrix has a porosity of from 40 to about 95% and a pore size of from 10 μ
m to 100 μ
m, and an overall height of from 50 μ
m to about 200 μ
m; and
(b) conduits for supplying gaseous oxygen;
wherein said conduits are hollow fibers made of a hydrophobic material and having an outer diameter of 0.1 mm to 1.0 mm, wherein said hollow fibers are evenly distributed through the three dimensional matrix and are arranged in parallel running from one end of the matrix to the other end of the matrix, wherein the distance between individual hollow fibers is between 0.1 mm and 5 mm.
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Abstract
A bio-artificial organ system is provided comprising a wall surrounding a space which has a solid support for cell cultivation. The space includes a there dimensional matrix in the form of a highly porous sheet or mat and including a physiologically acceptable network of fibers or an open-pore foam structure; hydrophobic hollow fibers permeable to gaseous oxygen or gaseous carbon dioxide evenly distributed through the three dimensional matrix material and arranged in parallel running from one end of the matrix material to the other end of the matrix material. Cells obtained from organs are present in the extra fiber space for culture wherein the cells are provided with sufficient oxygenation and are maintained as small aggregates with three dimensional attachment.
44 Citations
13 Claims
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1. A bio-artificial organ system comprising a wall surrounding a space, said space comprising:
-
(a) a solid support for cell cultivation consisting of a three dimensional matrix in the form of a highly porous sheet or mat, wherein the three dimensional matrix comprises a physiologically acceptable network or fibers or a physiologically acceptable open pore foam structure, wherein the matrix has a porosity of from 40 to about 95% and a pore size of from 10 μ
m to 100 μ
m, and an overall height of from 50 μ
m to about 200 μ
m; and
(b) conduits for supplying gaseous oxygen;
wherein said conduits are hollow fibers made of a hydrophobic material and having an outer diameter of 0.1 mm to 1.0 mm, wherein said hollow fibers are evenly distributed through the three dimensional matrix and are arranged in parallel running from one end of the matrix to the other end of the matrix, wherein the distance between individual hollow fibers is between 0.1 mm and 5 mm.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification