Abstract: An artificial hip joint stem is used to replace the damaged femoral head or acetabulum and includes a stem body having a head fixing part, which fixes a head, and an operating space horizontally opened at the upper side thereof. A head insertion hole connects to the operating space. A screw part is inserted into the head insertion hole. An operation converting part is inserted into the operating space to vertically move by the screw part when the operation converting part is connected to the screw part. A fixing bracket is inserted into the operating space such that the screw part is fixed to rotate without changing the depth thereof. A variable operating part is inserted into a supporting surface of the stem body to adjust a horizontal width by means of the operation converting part. A movable pin fixes the variable operating part to the operation converting part.

Abstract: An artificial hip joint stem is used to replace the damaged femoral head or acetabulum and includes a stem body having a head fixing part, which fixes a head, and an operating space horizontally opened at the upper side thereof. A head insertion hole connects to the operating space. A screw part is inserted into the head insertion hole. An operation converting part is inserted into the operating space to vertically move by the screw part when the operation converting part is connected to the screw part. A fixing bracket is inserted into the operating space such that the screw part is fixed to rotate without changing the depth thereof. A variable operating part is inserted into a supporting surface of the stem body to adjust a horizontal width by means of the operation converting part. A movable pin fixes the variable operating part to the operation converting part.

Abstract: A drum-type magazine in which a cartridge loading space for being loaded with cartridges can be formed in a drum unit when rotating a cartridge guide unit by an operation of a cartridge loading unit, and the cartridge loading unit can be immediately returned to an initial position thereof, so a user can easily load the magazine with cartridges using a small force. The drum-type magazine is also configured such that, even when the magazine is repeatedly used over a lengthy period of time and the elasticity of a tension member is reduced, the elasticity of the tension member can be increased by rotating a tension control unit, so the magazine can be efficiently loaded with cartridges and can efficiently support the loaded cartridges.

Abstract: The present invention relates to a surface-modified ultraviolet blocking powder obtained by reacting an ultraviolet blocking powder including a chloroacetyl group, a phospholipid monomer including an unsaturated bonding, and a catalyst inducing the reaction of the chloroacetyl group and the unsaturated bonding. According to the surface-modified ultraviolet blocking powder of the present invention, the surface may be modified using an effective method, and through chemical bonding (covalent bonding) and as a result of surface modification, the stability of the powder is high. In addition, since the surface modification is performed by using a biocompatible component, the ultraviolet blocking composition including the surface-modified ultraviolet blocking powder may provide ultraviolet blocking properties and biocompatibility at the same time.

Abstract: Disclosed is a 3-dimension (3D) scanning system for a computer-aided tooth modeling capable of extracting a configuration of a tooth into a 3D configuration data in a short time. The 3D scanning system includes an image detecting part for extracting an image data of a tooth plaster model, a moving part for changing a location and a position of the tooth plaster model measured by the image detecting part, and a control part for changing and controlling the location and the position of the tooth plaster model by controlling the moving part to measure the tooth plaster model using the image detecting part.