Sewon Cellontech Co., Ltd.

Cellontech Co., Ltd.

Sewoncellontec Co., Ltd.

Cheong Ho Chang

Joon Ho Lee

Dong Sam Suh

Ji Chui Yoo

Se Ken Yeo

Jun Keun Lee

Jin Sub Kim

Ki Soo Kim

Jang Hoon Kim

Dong Il Chang

Ji Chul Yoo

Ga Ram Kim

Hyeong Woo Jeong

Min Jung Choi

Sang Bum Choi

Dong-Sam Suh

Chang Kwon Ko

Tai Hyoung Kim

Dong Sam Shu

Ji Chul Yu

Sang Hun Woo

Myoung Sung Lee

Disclosed is a medical material manufactured using collagen and a method of manufacturing the same. The method includes (1) preparing collagen using distilled water as a solvent, (2) filling a syringe with the prepared collagen and then spinning the collagen through a syringe needle, (3) immediately immersing the spun collagen in a cross-linking solution, which is a mixture including therein a hyperosmotic agent and a cross-linking agent mixed with each other, (4) removing and then washing the collagen after cross-linking is completed, and (5) removing and then drying the collagen after the washing is completed. When the collagen is spun and processed into the form of a thread and the spun thread is then cross-linked, the cross-linked collagen thread has increased strength compared to before cross-linking, and the shape thereof is retained in an aqueous solution.

Medical material produced using collagen and method for producing same

Disclosed is a method of producing high-concentration collagen for use as a medical material, including: washing tissue of a mammal; subjecting the washed tissue to crushing and immersion in ethyl alcohol; subjecting the tissue to enzymatic treatment with stirring in purified water containing phosphoric acid and pepsin; adding sodium chloride to the collagen subjected to enzymatic treatment, performing stirring, and aggregating collagen; dissolving the aggregated collagen in purified water to give a collagen solution, which is then filtered using a filter and concentrated by removing the pepsin, low-molecular-weight material, and sodium chloride from the collagen solution using a tangential flow filtration device; subjecting the concentrated collagen to sterile filtration, aggregating the collagen using a pH solution in a neutralization tank, and concentrating the collagen by removing a non-aggregated solution; and concentrating the concentrated collagen using a centrifuge and stirring the concentrated collagen using a mixer.

Method for producing high-concentration collagen for using as medical material

Disclosed are a matrix for restoring soft tissue and a method of producing the same, the method including: forming a sheet-type absorption layer () on one side of a double layer using biocompatible neutral collagen; forming a film-type support layer () on the remaining surface of the double layer by mixing collagen with a water-soluble polymer and a natural material; and forming a double layer-structured matrix () for restoring soft tissue by attaching the absorption layer () and the support layer () so as to treat damage to soft tissue of a mammal other than a human or restore damaged soft tissue. This invention pertains to the treatment of damage to soft tissue such as tendons, ligaments, and rotator cuffs or the restoration of damaged soft tissue, whereby the quality and reliability of products can be remarkably improved, thus satisfying various needs of consumers, who are the users thereof, and exhibiting a good effect.

Matrix for restoring soft tissue and producing method therefor

Disclosed is a basic culture medium for mesenchymal stem cells, and a cell therapeutic agent cultured and differentiated using same. The basic culture medium reduces the time taken from collection to mass culturing by increasing the proliferation rate of undifferentiated mesenchymal stem cells derived from an adult tissue such as human marrow and adipose tissue, and also is capable of various differentiations into treating agents for bone-forming cells, for cartilage cells, or for fat cells.

Mesenchymal stem cell basic culturing medium

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Seoul, South Korea

Cheong Ho Chang