Abstract: In an amorphous complex metal oxide and a method for producing the same of the present disclosure, the amorphous complex metal oxide is a three-components metal oxide containing titanium (Ti), cerium (Ce), and zirconium (Zr), wherein the amorphous complex metal oxide is amorphous.

Abstract: The present invention relates to a crystallized glass ceramic comprising 30 wt % to 40 wt % of each of CaSiO3, Ca10(PO4)6(OH)2, and Ca2Mg(Si2O7); a crystallized glass ceramic composition comprising CaSiO3, Ca10(PO4)6(OH)2, and Ca2Mg(Si2O7) in a predetermined weight ratio; a bone graft material comprising the glass ceramic; and an intervertebral spacer or medical device for replacement of bone tissue, which is manufactured using the bone graft material.

Abstract: The present disclosure relates to a method for producing a coating film having high heat resistance, high hardness and wear resistance, a coating film having high heat-resistance, high hardness and wear resistance produced using the method, and a cutting tool including the same. The method includes forming a metal nitride layer on a metal base; forming a carbon layer on the metal nitride layer; and irradiating a laser into the carbon layer to add carbons into a portion of the metal nitride layer, thereby to form a carburized layer.

Abstract: The present disclosure relates to solid electrolyte containing MgO partially stabilized zirconia doped with at least one of Mn and Co.

Abstract: Provided are a hyaluronic acid composition having excellent viscoelasticity and being easily injectable, and a preparation method thereof.

Abstract: The present invention relates to a polyether ether ketone (PEEK)-based material comprising hydroxyapatite (HA) particles which are embedded discontinuously on the surface thereof, a method of preparing the PEEK-based material, and a bone graft comprising the PEEK-based material.

Abstract: The present invention relates to a wound dressing material comprising a fibrillated acellular dermis matrix and a biodegradable polymer aqueous solution and, more specifically, to: a wound dressing material comprising 5-20 wt % of a fibrillated acellular dermis matrix, 0.5-5 wt % of a biodegradable polymer, and 75-94.5 wt % of water; and a preparation method therefor.

Abstract: The disclosure relates to a cervical spine fixation apparatus comprising: a body; a spacer; and a frame which is positioned on the lateral side of the spacer and couples with the spacer, wherein the frame has a coupling part for coupling with the body, and the body comprises a hole in which the coupling part of the frame is inserted. Or, the disclosure relates to a cervical spine fixation apparatus comprising: a body; and a spacer having a coupling part, wherein the body comprises a hole in which the coupling part is inserted, and the spacer moves with respect to the body.

Abstract: The present invention relates to a method for preparing a medical material for replacing a hard tissue defect and a medical material produced therefrom. More specifically, in the present invention, powders of bioactive glass are press-molded, and are then subjected to a first heat treatment at a relatively low temperature below the glass transition temperature of bioactive glass. Then, the resultant is processed into a desired shape and then subjected to a second heat treatment at a temperature higher than the glass transition temperature of bioactive glass. Accordingly, the present invention provides a medical material which can be customized to a desired shape of a hard tissue defect in a living body and minimize thermal shock, and which is capable of exhibiting a bone fusion property, while overcoming the low compressive strength drawback of hydroxyapatite, which is an existing hard tissue replacement material currently in use.

Abstract: A hybrid stent includes multiple main cells aligned in a spiral shape and including multiple first link units which are aligned diagonally and spaced at a predetermined distance from each other and multiple second link units which connect adjacent first link units among the multiple first link units and are spaced at a predetermined distance from each other, and one or more open cells adjacent to the multiple main cells in a longitudinal direction and aligned in a spiral shape.

Abstract: The present invention relates to a carrier for growth factor related to regeneration of bone tissues that is capable of arbitrarily controlling the delivery rate of growth factors related to bone regeneration and thus especially applicable to a bone void filler in the fields of the dental or orthopedic applications. The carrier for controlling the delivery rate of the growth factor in the present invention is composed of a hyaluronic acid hydrogel having a distribution of interconnected pores and a calcium phosphate microsphere being distributed in the pores of the hyaluronic acid hydrogel. The calcium phosphate microsphere having a porosity suitable for delivery of the growth factor is positioned into the pores of the cross-linked hyaluronic acid hydrogel to complete the carrier.

Abstract: A wound treatment method capable of promoting the treatment of a wound is provided. The wound treatment method comprising: placing a foam dressing at a wound site; sealing the wound site by attaching a film dressing to the skin adjacent to the wound site; lowering pressure in a sealed space, which is formed between the film dressing and the wound site, to a target negative pressure level by supplying negative pressure generated by a negative pressure generation unit to the sealed space; maintaining the pressure in the sealed space at the target negative pressure level for a first setting period; stopping the supply of the negative pressure for a second setting period, which follows the first setting period; and injecting a medication into the wound site within the second setting period.

Abstract: The present invention relates to a wound volume measuring method and device, wherein the method comprises the steps of: disposing a foam dressing on a wound site; hermetically sealing the wound site by attaching a film dressing on skin adjacent to the wound site; supplying a negative pressure to the hermetically sealed space formed between the film dressing and the wound site, and thereby discharging fluid into the hermetically sealed space; measuring the flow of the fluid discharged from the hermetically sealed space; and calculating the volume of the wound site on the basis of the measured fluid flow.

Abstract: The present invention relates to a crystallized glass ceramic comprising 30 wt % to 40 wt % of each of CaSiO3, Ca10(PO4)6(OH)2, and Ca2Mg(Si2O7); a crystallized glass ceramic composition comprising CaSiO3, Ca10(PO4)6(OH)2, and Ca2Mg(Si2O7) in a predetermined weight ratio; a bone graft material comprising the glass ceramic; and an intervertebral spacer or medical device for replacement of bone tissue, which is manufactured using the bone graft material.

Abstract: The present invention relates to a system for producing artificial osseous tissue comprising: a client computer acquiring an image information of a subject bone tissue from an imaging unit that picks up an image of a subject bone tissue of a patient to generate a 3D image information; a server computer identifying the subject bone tissue based on the image information of the subject bone tissue received from the client computer, generating a 3D image information of at least one therapeutic bone tissue model corresponding to the subject bone tissue, and transmitting the 3D image information of the at least one therapeutic bone tissue model to the client computer; and a machining unit for fabricating an artificial bone tissue based on the 3D image information of the therapeutic bone tissue model determined from the server computer.

Abstract: The present invention relates to a bone graft composition and a preparation method thereof, and more particularly to a bone graft composition having excellent physical properties, which comprises a hydrogel comprising a combination of specific amounts of poloxamer and HPMC, and calcium phosphate compound particles, and a preparation method thereof.

Abstract: The present invention relates to a carrier for growth factor related to regeneration of bone tissues that is capable of arbitrarily controlling the delivery rate of growth factors related to bone regeneration and thus especially applicable to a bone void filler in the fields of the dental or orthopedic applications. The carrier for controlling the delivery rate of the growth factor in the present invention is composed of a hyaluronic acid hydrogel having a distribution of interconnected pores and a calcium phosphate microsphere being distributed in the pores of the hyaluronic acid hydrogel. The calcium phosphate microsphere having a porosity suitable for delivery of the growth factor is positioned into the pores of the cross-linked hyaluronic acid hydrogel to complete the carrier.

Abstract: The present invention relates to a method for producing an acellular dermal matrix, and to an acellular dermal matrix produced by same, and more particularly, to a method for producing an acellular dermal matrix, in which sucrose is added to base ingredients consisting of glycerol, propylene glycol, and a base solvent or solution so as to produce a cryoprotectant, the solution is injected into the skin below the epidermis and dermis from which cells have been removed, and freeze-drying is then performed.

Abstract: The present invention relates to an antimicrobial wound dressing comprising chitosan-silver nanoparticles and a preparation method thereof The antimicrobial wound dressing is prepared by coating a wound dressing with chitosan and silver and drying the coated wound dressing and has an excellent property of releasing silver nanoparticles in a sustained manner.

Abstract: Provided is a charcoal dressing material and a method of manufacturing the same. The charcoal dressing material includes: a porous substrate having a plurality of pores; and a charcoal powder adhered to a surface of the porous substrate.