IP Library › Granted Patent US 9,216,077
Granted Patent B2
US 9,216,077 · App. 12/465,433 · Granted Dec 22, 2015

Medical constructs of twisted lengths of collagen fibers and methods of making same

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Quick Facts
Patent No.
US 9,216,077
App. No.
12/465,433
Filed
May 13, 2009
Granted
Dec 22, 2015
Kind
B2
Art Unit
3738
USPC
623/13.12
Abstract

Medical constructs that have a plurality of NDGA-treated collagen fibers twisted together to provide strands that are twisted together into implantable cords. The cords are suitable to treat orthopaedic and other conditions and can be degradeable over time. Related and methods of twisting the collagen fibers as groups or bundles of fibers to form the medical constructs are described.

Claims (8)

1. A medical construct, comprising:

three biocompatible cables twisted together,

wherein each biocompatible cable comprises three strands twisted together about 200-300 twists per fiber meter in a first rotative direction, and

wherein each strand comprises twenty NDGA-treated elongate collagen fibers twisted together a number of twists per fiber meter in a second rotative direction opposite the first rotative direction.

2. A medical construct, comprising:

at least one biocompatible cable comprising a plurality of strands twisted together a number of twists per fiber meter in a first rotative direction,

wherein each strand comprises a plurality of NDGA-treated elongate collagen fibers twisted together a number of twists per fiber meter in a second rotative direction opposite the first rotative direction, said number of twists per fiber meter in the second rotative direction being substantially the same in each of the strands, and

wherein said construct comprises between about 2000-4000 NDGA-treated elongate collagen fibers.