Great invention using refined heparin-like polysaccharides for the treatment of inflammatory bowel disease and related complications. After the de-anticoagulant treatment and enzymatic hydrolysis of raw heparin, the heparin-like polysaccharides are separated by using a gel size exclusion chromatography column and specific oligosaccharides are used in the preparation of medicaments.
Further potential target diseases include irritable bowel syndrome, arthritis and other extraintestinal complications, including ankylosing spondylitis, gangrenous pyoderma disease, erythema nodosum, iritis, uveitis, episcleritis, primary sclerosing cholangitis, and rheumatoid arthritis.

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