US 12,583,909 B2 · Method of producing ADM collagen fiber, ADM collagen fiber produced using method, and apparatus for producing ADM collagen fiber

Abstract

The present invention relates to a method of producing an ADM collagen fiber, an ADM collagen fiber produced using the method, and an apparatus for producing the ADM collagen fiber. More particularly, the present invention relates to a method of producing an ADM collagen fiber including a step of extruding an acidic ADM collagen solution into a basic solution to form filaments. The present invention has an effect of providing a method of producing an ADM collagen fiber, an ADM collagen fiber produced using the method, and an apparatus for producing the ADM collagen fiber. According to the present invention, since a collagen solution raw material having a required concentration may be prepared by immediately pulverizing ADM collagen shells, economic efficiency and productivity may be increased through reduction in production cost and time. In addition, mass production is possible by using a continuous process apparatus with a simple structure.

Claims8

Dependent claims

A method of producing an acellular dermal matrix (ADM) collagen fiber, comprising:

extruding an acidic ADM collagen solution into a basic solution to form filaments,
dehydrating the formed filaments with an organic solvent,
drying the dehydrated filaments under vacuum or atmospheric pressure, and
winding the dried filaments to produce the ADM collagen fiber,
wherein the acidic ADM collagen solution comprises 1 to 15% by weight of an ADM collagen, 0.1 to 20% by weight of an organic acid, and a remainder of water, and
wherein the extruding is performed under conditions of a nozzle diameter of 0.1 to 2.5 mm and a discharge rate of 1.0 to 30 ml/h per a nozzle.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/792,608Filed 8 Jan 2021

Priority

KR 10-2020-000491314 Jan 2020

Published

US 2023/0033537 A12 Feb 2023

Granted

24 Mar 2026

Term ends

Not estimatedThe source records don’t support an estimate.

Classification11 codes

C07K 14/78
From animals; from humans: connective tissue peptides, e.g. collagen, elastin, laminin, fibronectin, vitronectin or cold insoluble globulin [CIG]
D01D 1/02
Treatment of filament-forming or like material: preparation of spinning solutions
D01D 5/06
Formation of filaments, threads, or the like: wet spinning methods
D01D 5/10
Melt spinning methods: using organic materials

Method of producing ADM collagen fiber, ADM collagen fiber produced using method, and apparatus for producing ADM collagen fiber

Life of this patent

Method of producing ADM collagen fiber, ADM collagen fiber produced using method, and apparatus for producing ADM collagen fiber

Life of this patent

Abstract

Claims8