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: Disclosed are a cervical vertebra fixation device using a plurality of screws characterized by comprising: a body having a length extending across at least two bones and including a first end and a second end opposite to the first end; and three or more openings formed in the body for receiving the plurality of screws, wherein the first end has a profile with at least a portion of the body being removed with respect to the horizontal line perpendicular to the length direction to prevent adjacent segment degeneration, and a cervical vertebra fixation device using at least one screw, comprising: a body fixed into a bone; at least one opening formed in the body for receiving the at least one screw; a cover for preventing any escape of the screws inserted; and a cover screw, wherein the cover is movable with respect to the body to allow the insertion of screws while the cover is coupled to the body.

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: A spacer for laminoplasty is provided, the spacer including: a first spacer fixed to an upper lamina plate in a state in which an incision surface of the upper laminate plate of a lamina plate of an incised cervical vertebrae is seated on and supported by the first spacer; and a second spacer fixed to a lower lamina plate so that an incision surface of the lower lamina plate of the lamina plate of the incised cervical vertebrae is in contact with and supported by the second spacer, wherein the first spacer and the second spacer are in a coupled state in which they are not separated from each other by a fixed bar, while having expandable lengths with respect to each other.

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 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.

Abstract: The present invention relates to an anti-adhesion polymer composition capable of supporting growth factor, which effectively exhibits anti-adhesion function and, at the same time, has an excellent adhesive property so as to be able to easily and continuously adhere to a wound site, has antibacterial and hemostatic properties, and is composed of an injectable formulation suitable for use in minimally invasive surgery, laparoscopic surgery or the like. The anti-adhesion polymer composition capable of supporting growth factor comprises: 24-50 wt % of a polyethyleneglycol-polypropyleneglycol-polyethyleneglycol (PEG-PPG-PEG) block copolymer having a polyethyleneglycol (PEG) content of 65-85 wt % and a molecular weight of 6,000-20,000 Da; 0.03-5 wt % of gelatin; 0.03-5 wt % of chitosan; and distilled water.

Abstract: The present invention relates to a bone graft composition and a preparation method thereof, and more particularly to 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: In a terminal including a fingerprint reader and a method for processing a user's input through the fingerprint reader, the terminal includes: a fingerprint reader configured to acquire fingerprint data by recognizing a fingerprint or to acquire touch input data including information on positions recognized by touch or movement of a touching device; a signal converter configured to convert touch input data received from the fingerprint reader into an input signal of a mode selected from among input signals of one or more modes; and an execution controller configured to control applications according to the input signal received from the signal converter.