Sewon Cellontech Co., Ltd.

Other

Jae-Deog Jang

Sae-Bom Lee

Cheong-Ho Chang

Hyun-Shin Park

Ji-Chul Yu

Hun Rae Kim

Hyun-Jo Kim

Hun Jung Kim

Seok-Jung Kim

Ju-Hee Park

Cheong-Ho Jang

Eun-young Lee

Chang-Kwon Ko

Se-Geun Yeo

Jang-Hoon Kim

Kyoung-Phil Byun

Hyun-Mi Son

Se-Ken Yeo

Soo-Jin Jung

Chang-Kwon 110-2002 Dongbu Centrebill Apt Ko

Jeong-Yong Choi

Soo-Jin 301-1103 Sinmyoung Apt Jung

Pyoung-Min Kim

An apparatus for operating a syringe has developed comprising: an upper semi-cylindrical tube section, semi-circular shaped locking groove and lower semi-cylindrical tube section. The upper semi-cylindrical tube section is integrally formed an upper head part with a threaded hole for axial movement. The lower semi-cylindrical tube section forms a top portion, intermediate portion and end portion. A diameter (Dc) at the intermediate portion larger than the diameter (Dtip) at end portion is gradually reduced from intermediate to end portion. The length of the tapered portion is same as that portion of the constant diameter. A tip portion has formed an opened semi-circular shape to simply overlap the syringe over the cartridge for easily snapping-in and out. The syringe piston moves downward with no reverse action when the piston press-unit is rotated, thus it is possible to inject the precise amount of medicine to a patient with constant pressure.

Apparatus for operating syringe piston

The present invention relates to a composition for cartilaginous tissue repair and to a production method therefor. The present invention comprises the steps of: (a) dissolving freeze-dried fibrinogen in an aprotinin solution; (b) dissolving freeze-dried thrombin in a stabilizing solution; (c) mixing an enriched collagen solution with thrombin and the stabilizing solution; and installing the fibrinogen solution (a) to one side of a dual kit and the solution (c) containing the collagen to the other side, and then mixing and injecting into damaged cartilaginous tissue. In the present invention, which is constituted as described above, biomaterials such as collagen and fibrin are mixed so as to allow damaged cartilaginous tissue to be repaired to a state allowing transplantation onto the tissue, and efficient regeneration is induced, thereby making it possible to reduce surgery-related stress on people and animals while inducing relatively rapid and efficient cartilage repair and regeneration.

Composition for inducing tissue regeneration by activating platelet-rich plasma (PRP)

A method for separation the collagen from the various animal tissues is disclosed for preparing collagen solution and product using the same. The porcine tissues are processed to have proper form and size for acid-treatment. The acid-treatment is repeated with pepsin to separate type I or II collagens. The separated collagen is salt-treated for fractionation and ethanol-treated for obtaining 5&#x2dc;10% of collagen from the initial tissue weight. The prepared tissues are processed for separating collagen through the collagen separating process. The separated collagen is processed for preparing product. The method for preparing product is comprised: treating a collagen solution having a predetermined concentration under a neutral condition at a low temperature, followed by overnight treatment at a temperature of 30 to 35&#xb0; C.; concentrating collagen by centrifugation; and dissolving the thus-concentrated collagen in refrigerated weakly-acidic solvent or phosphate buffered saline (PBS), thereby preparing collagen having a concentration of 1 to 5 mg/mL.

Method of separating collagen from the various animal tissues for producing collagen solution and product using the same

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Seoul, South Korea

Jae-Deog Jang