Abstract: Provided are a method for preparing a polyetherketoneketone and a polyetherketoneketone prepared thereby, wherein, at the time of a polymerization reaction, nitrogen gas is blown into a liquid reaction medium while stirring, thereby quickly removing hydrochloric acid, which is a by-product generated during the reaction, and preventing aggregation of resin particles, thus suppressing the generation of scales.

Abstract: The present invention relates to an anti-adhesion polymer composition. The anti-adhesion polymer composition according to the present invention has excellent adhesion performance so as to be continuously attached successfully to a wound site generated during surgery while also effectively exhibiting an anti-adhesion function, has antibacterial and hemostatic properties, and has excellent formulation stability.

Abstract: A breast pump includes: a close-contact housing brought into contact with a breast of a lactating woman and having a protruding part, and a milk discharge hole formed on an end-side bottom surface of the protruding part; a cap connector covering an end side of the protruding part, having a spacing space between the cap connector and the protruding part, and provided with a milk discharge tube; a funnel connector on an upper side of the cap connector to have an inner space, and provided with a communication flow passage through which the inner space and the spacing space communicate; a cover to cover the inner space of the funnel connector; a flow separation membrane for vertically separating a space between the funnel connector and the cover; and an air tube through which air is allowed to flow into/out of the space between the cover and the flow separation membrane.

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.