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US 5,851,290 AGranted
Apparatus for spinning and processing collagen fiber
AssigneeTissue Engineering, Inc.
InventorsTimothy W. Fofonoff, Eugene Bell
Life of this patent
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Abstract
An apparatus for forming a collagen fiber having microparticulates coated on the surface of the fiber and the method for forming the fiber are disclosed.
Claims10
An apparatus for forming microparticulate-coated collagen fibers, comprising:
- a) means for forming a continuous liquid collagen stream;
- b) a coagulation bath, wherein a continuous liquid collagen stream can be formed into a continuous collagen gel fiber;
- c) a dehydrating bath, wherein said continuous collagen gel fiber can be partially dehydrated and further polymerized;
- and
- d) means for coating microparticulates on the surface of the partly dehydrated fiber, said means including
- a support base;
- a horizontal tube disposed on and rigidly attached to said support base, said tube having a first opening and a second opening, wherein the diameter of said tube is sufficient to allow passage of a continuous fiber under tension in a straight line into the first opening and from second opening, said horizontal tube being an inverted arch, wherein the lower portion of said horizontal tube forms the microparticulate reservoir;
- a microparticulate reservoir within said tube, wherein the upper level of the reservoir is lower than the passage for said continuous fiber;
- and
- means for shaking said support base and said tube as one unit to suspend said microparticulates in said tube, wherein the microparticulates can contact the fiber and be coated on the surface of the fiber.
7 more elements
An apparatus for applying microparticulates to the surface of a fiber, said apparatus comprising
- a) means for forming a continuous liquid collagen stream;
- b) a coagulation bath, wherein a continuous liquid collagen stream can be formed into a continuous collagen gel fiber;
- c) a dehydrating bath, wherein said continuous collagen gel fiber can be partially dehydrated and further polymerized;
- and
- d) means for coating microparticulates on the surface of the partly dehydrated fiber, said means including
- a support base;
- a horizontal tube disposed on said support base, said horizontal tube having a first opening and a second opening, wherein the diameter of said horizontal tube is sufficient to allow passage of a continuous fiber under tension in a straight line into the first opening and from second opening, said horizontal tube being an inverted arch, wherein the lower portion of said horizontal tube forms the microparticulate reservoir;
- a microparticulate reservoir within said tube, wherein the upper level of the reservoir is lower than the passage for said continuous fiber;
- and
- means for suspending said microparticulates in said tube, wherein the microparticulates can contact the fiber and be coated on the surface of the fiber.
7 more elements
Dependencies are inferred from the claim text.