Abstract: The present invention relates to stem cell-derived mature cardiomyocytes and a cardiovascular disease model using same and, more specifically, to differentiation into mature ventricular cardiomyocytes by culturing stem cells in a medium containing FGF4 and ascorbic acid, and use of the differentiated mature ventricular cardiomyocytes as a cardiovascular disease cell model. The mature ventricular cardiomyocytes, obtained by culturing stem cells in a medium containing FGF4 and ascorbic acid and inducing the differentiation thereof, and cardiovascular disease cell model using same according to the present invention are very useful for screening for cardiovascular disease therapeutic agents and evaluation of the toxicity of new drugs.

Abstract: This application relates to a dip coating apparatus for coating a medical assist device such as a catheter or guidewire to a uniform thickness. The apparatus includes a casing and a coating booth disposed in the casing and containing a coating fluid. The apparatus also includes an elevating member vertically movable in the casing and configured to hold an upper end of each of medical assist devices so that the medical assist devices can be hung. The apparatus further includes a position adjusting member for adjusting the height of the elevating member, and a controller for controlling operation of the position adjusting member. The coating booth includes a coating unit having the same length as each medical assist device and a hopper-shaped guide unit that guides a bundle of the medical assist devices to be inserted into the coating unit when the guide unit contacts the medical assist devices.

Abstract: A hydrophilic coating composition and a hydrophilic coating method using the same are disclosed. The hydrophilic coating composition can include a first coating solution, a second coating solution, and a crosslinking agent. The first coating solution includes a polyurethane-based compound, and the second coating solution includes a polysaccharide. The coating composition can provide a coating that is strongly hydrophilic, highly biocompatible, thin, and flexible. Thus, when the coating composition is applied to an invasive medical device, lubricity can be greatly increased, thereby preventing damage to the human body, such as injury, tissue abrasion and the like.

Abstract: This application relates to a composition for hydrophilic coating and a hydrophilic coating method using the same. The composition may include a first coating solution comprising an acrylic compound, a second coating solution comprising a polysaccharide and a crosslinking agent. The hydrophilic coating can form a coating, which is highly hydrophilic, has great biocompatibility, and is thin and flexible. Therefore, when the composition is coated on an invasive medical device, lubricity can be greatly improved, and thus there is an advantage of preventing damage to the human body, such as injury, tissue wear, and the like.

Abstract: An apparatus for coating an inner surface of a medical tube includes a housing, an injection unit, a drying unit, and a supply unit. The housing defines an external shape of the apparatus and provides a workspace. The injection unit is positioned in an upper portion of the workspace and injects a coating fluid into a medical tube connected to a nozzle tip formed at a lower end thereof. The drying unit is positioned on the injection unit and dries the coating fluid introduced into the medical tube. The supply unit positioned in a lower portion of the workspace and collects a residual coating fluid discharged from a lower end of the medical tube and transfers the collected residual coating fluid to a supply valve of the injection unit. The apparatus can easily, uniformly, and efficiently coat the inner surface of a long medical tube such as a catheter.

Abstract: This application relates to a dip coating apparatus for coating a medical assist device such as a catheter or guidewire to a uniform thickness. The apparatus includes a casing and a coating booth disposed in the casing and containing a coating fluid. The apparatus also includes an elevating member vertically movable in the casing and configured to hold an upper end of each of medical assist devices so that the medical assist devices can be hung. The apparatus further includes a position adjusting member for adjusting the height of the elevating member, and a controller for controlling operation of the position adjusting member. The coating booth includes a coating unit having the same length as each medical assist device and a hopper-shaped guide unit that guides a bundle of the medical assist devices to be inserted into the coating unit when the guide unit contacts the medical assist devices.

Abstract: An apparatus for coating an inner surface of a medical tube includes a housing, an injection unit, a drying unit, and a supply unit. The housing defines an external shape of the apparatus and provides a workspace. The injection unit is positioned in an upper portion of the workspace and injects a coating fluid into a medical tube connected to a nozzle tip formed at a lower end thereof. The drying unit is positioned on the injection unit and dries the coating fluid introduced into the medical tube. The supply unit positioned in a lower portion of the workspace and collects a residual coating fluid discharged from a lower end of the medical tube and transfers the collected residual coating fluid to a supply valve of the injection unit. The apparatus can easily, uniformly, and efficiently coat the inner surface of a long medical tube such as a catheter.

Abstract: A terminal device for carrying out an interactive internet protocol television (IPTV) service comprises: a near distance communication unit to receive set-top box information from a remote controller which controls a set-top box used for the interactive IPTV service; a session setup unit to set up a session to communicate between the terminal device and the set-top box based on the set-top box information; a content information receiver to receive, from the set-top box, content information on content being played by the set-top box over the set up session; a content information transmitter is configured to transmit the content information received from the content information receiver to an information provider; and content-related information receiver to receive content-related information from the information provider, the content-related information is extracted by the information provider from prestored information on a plurarity of contents based on the content information.

Abstract: A perforated gas-distributing plate for compact fuel cells made of a metal material such as stainless steel on which gas flow paths are formed by an etching process, and a separator plate manufactured using the gas-distributing plate are disclosed.

Abstract: A LiCoO2-coated NiO cathode for molten carbonate fuel cell is provided, wherein the cathode is prepared by dissolving a stoichiometric amount of lithium salts and cobalt salts in a solvent with or without adding a chelating agent to give a sol or a mixed solution, impregnating a NiO electrode for MCFC into the sol or the mixed solution, and drying and calcining the resulting electrode. By using the cathode of the invention, lifetime of the cell can be extended by two or more times while maintaining cell performance.

Abstract: The present invention relates to a cathode, which can be used in molten carbonate fuel cells (hereinafter, referred to as an "MCFC"), and a process for preparing the same. In such a cathode, NiO, which is inexpensive and has relatively good electrochemical performance, has been mainly used. However, NiO has a relatively large solubility in electrolytes of an MCFC which causes the cells to be short circuited, thereby shortening the life of the cells. However, according to the present invention, a cathode having a longer life than common cathodes for MCFC can be prepared by adding alkaline earth metal oxides, which are basic substances, to NiO, the main material of the cathodes, or impregnating an Ni plate with a solution of the alkaline earth metal oxides, to reduce the solubility of the NiO while maintaining its performance as the cathode.