Abstract: A composition for a FDM 3D printer is disclosed. The composition contains bioglass and a biocompatible polymer resin. In addition, a FDM 3D printer molded article having a laminated strut structure, in which the composition for the FDM 3D printer is injected into four layers, is disclosed.

Abstract: Provided are a bone graft composition and a preparation method thereof, and more particularly, a bone graft composition provided in the form of a putty formulation by mixing calcium phosphate compound particles with hydrogel, having excellent physical properties, which is easy to inject, and which maintains its structure even in an in vivo environment after implantation, thereby enabling sustained release of a drug loaded therein.

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

Abstract: An intervertebral fusion cage is disclosed. An intervertebral fusion cage according to an embodiment of the present invention comprises: a body including a receiving part of which upper and lower portions are open, an upper guide part, and a lower guide part; a moving member disposed in the receiving part; a screw which is screw-coupled to the body and moves forwards or backwards relative to the body integrally with the moving member when rotating; an upper plate which has a guided part guided by the upper guide part and is disposed above the body while being engaged with the moving member; and a lower plate which has a guided part guided by the lower guide part and is disposed under the body while being engaged with the moving member.

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 present invention provides a spinal correction device comprising: a pedicle screw comprising a seating part having a pair of first slits formed opposite to each other, and a screw part disposed at one side of the seating part so as to be implanted into a bone; an extender having a pair of second slits for guiding a rod so as to seat same in the seating part, and detachably fastened at one side thereof to the outer surface of the seating part; a reduction body detachably fastened to the other side of the extender; and a rod reducer arranged to pass through the reduction body and the extender so as to fix the rod placed in the pair of second slits by pressing the rod against the seating part.

Abstract: The present invention provides a spinal correction device comprising: a pedicle screw comprising a seating part having a pair of first slits formed opposite to each other, and a screw part disposed at one side of the seating part so as to be implanted into a bone; an extender having a pair of second slits for guiding a rod so as to seat same in the seating part, and detachably fastened at one side thereof to the outer surface of the seating part; a reduction body detachably fastened to the other side of the extender; and a rod reducer arranged to pass through the reduction body and the extender so as to fix the rod placed in the pair of second slits by pressing the rod against the seating part.

Abstract: The present invention relates to a composition for dermal injection which includes two or more types of cross-linked hyaluronic acid particles having different particle diameters and non-cross-linked hyaluronic acid. The composition for dermal injection according to the present invention satisfies viscosity, extrusion force, and viscoelasticity conditions for dermal injection, and an extrusion force deviation is low so that the user does not feel fatigue when the composition is injected into the dermal thereof. Also, the composition is excellent in viscoelasticity and tissue restoring ability, is maintained for a long period of time, allows rapid recovery because an initial swelling degree is low, and also is excellent in safety and stability in the body.

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 composition for dermal injection which includes two or more types of cross-linked hyaluronic acid particles having different particle diameters and non-cross-linked hyaluronic acid. The composition for dermal injection according to the present invention satisfies viscosity, extrusion force, and viscoelasticity conditions for dermal injection, and an extrusion force deviation is low so that the user does not feel fatigue when the composition is injected into the dermal thereof. Also, the composition is excellent in viscoelasticity and tissue restoring ability, is maintained for a long period of time, allows rapid recovery because an initial swelling degree is low, and also is excellent in safety and stability in the body.

Abstract: Disclosed is a scaffold for living donor transplantation, which includes sintered bioglass and a biocompatible polymer and has improved properties using a 3D printer through a fused deposition modeling process.

Abstract: The present invention relates to a composition for dermal injection which includes two or more types of cross-linked hyaluronic acid particles having different particle diameters and non-cross-linked hyaluronic acid. The composition for dermal injection according to the present invention satisfies viscosity, extrusion force, and viscoelasticity conditions for dermal injection, and an extrusion force deviation is low so that the user does not feel fatigue when the composition is injected into the dermal thereof. Also, the composition is excellent in viscoelasticity and tissue restoring ability, is maintained for a long period of time, allows rapid recovery because an initial swelling degree is low, and also is excellent in safety and stability in the body.

Abstract: A composition for a FDM 3D printer is disclosed. The composition contains bioglass and a biocompatible polymer resin. In addition, a FDM 3D printer molded article having a laminated strut structure, in which the composition for the FDM 3D printer is injected into four layers, is disclosed.

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: 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 composition for dermal injection which includes two or more types of cross-linked hyaluronic acid particles having different particle diameters and non-cross-linked hyaluronic acid. The composition for dermal injection according to the present invention satisfies viscosity, extrusion force, and viscoelasticity conditions for dermal injection, and an extrusion force deviation is low so that the user does not feel fatigue when the composition is injected into the dermal thereof. Also, the composition is excellent in viscoelasticity and tissue restoring ability, is maintained for a long period of time, allows rapid recovery because an initial swelling degree is low, and also is excellent in safety and stability in the body.

Abstract: The present invention relates to a composition for dermal injection which includes two or more types of cross-linked hyaluronic acid particles having different particle diameters and non-cross-linked hyaluronic acid. The composition for dermal injection according to the present invention satisfies viscosity, extrusion force, and viscoelasticity conditions for dermal injection, and an extrusion force deviation is low so that the user does not feel fatigue when the composition is injected into the dermal thereof. Also, the composition is excellent in viscoelasticity and tissue restoring ability, is maintained for a long period of time, allows rapid recovery because an initial swelling degree is low, and also is excellent in safety and stability in the body.

Abstract: The present invention relates to a composition for dermal injection which includes two or more types of cross-linked hyaluronic acid particles having different particle diameters and non-cross-linked hyaluronic acid. The composition for dermal injection according to the present invention satisfies viscosity, extrusion force, and viscoelasticity conditions for dermal injection, and an extrusion force deviation is low so that the user does not feel fatigue when the composition is injected into the dermal thereof. Also, the composition is excellent in viscoelasticity and tissue restoring ability, is maintained for a long period of time, allows rapid recovery because an initial swelling degree is low, and also is excellent in safety and stability in the body.

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.