Viscofan has filed a patent for a collagen ink designed for 3D printing. The ink contains native collagen fibers in an acid medium, with specific viscosity and fiber length/diameter requirements. The method involves neutralizing the ink, mixing with cells, and printing structures. GlobalData’s report on Viscofan gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Viscofan, Vinyl resin foam was a key innovation area identified from patents. Viscofan's grant share as of January 2024 was 53%. Grant share is based on the ratio of number of grants to total number of patents.

Collagen ink for 3d printing with specific fiber properties

Source: United States Patent and Trademark Office (USPTO). Credit: Viscofan SA

A patent application (Publication Number: US20230392029A1) discloses a collagen ink designed for 3D printing applications. The collagen ink consists of native collagen fibers dispersed in an acid medium with a pH range of 0.1 to 5, with a viscosity between 10 cP and 50 McP. The fibers in the dispersion are predominantly between 1 µm and 2500 µm in length and 0.1 µm to 150 µm in diameter. The concentration of collagen fibers in the ink ranges from 1% to 10%, with specific mass percentages of fibers falling within defined length ranges.

Furthermore, the patent application outlines a method for obtaining the collagen ink from collagen-containing tissue, involving steps such as washing, chopping, macerating, and dispersing the tissue to achieve the desired ink composition. The method specifies the use of connective tissue, particularly dermis tissue of corium, of bovine origin aged between 1 and 3 years. Additionally, the application describes the use of the collagen ink in creating hydrogels and printing 3D structures, including structures incorporating various types of cells like cardiomyocytes, neuronal cells, and stem cells. The method also includes steps for neutralizing the collagen ink, mixing it with cells, and printing structures with the combined ink-cell mixture, emphasizing the potential applications in tissue engineering and regenerative medicine.

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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.