Abstract: The present invention relates to a balloon catheter. The invention comprises: a first shaft; an expandable balloon which is attached to the front end of the first shaft; an expandable lumen which is formed inside the first shaft and to which a liquid required for expanding the balloon is provided; a second shaft which extends from the front end of the first shaft to which the balloon is attached and has a wire hole through which a guide wire passes; and a guide wire lumen, which is formed inside the second shaft and through which the guide wire passes. According to the invention, the first and second shafts are coaxially connected and the expandable lumen and the guide wire lumen are respectively formed in each shaft in order to reduce the overall diameter of the shaft, thereby facilitating surgery and improving pushability.

Abstract: A system and method for providing an image capable of realizing conversion of a 3D tissue structure into which an implant is inserted into a 2D image using a contour technique are provided.

Abstract: The present invention relates to a wire stent. The present invention provides a wire stent consisting of a plurality of unit wires. The surfaces of the portions of the wire stent in which the plurality of unit wires are interconnected contact each other in the axial direction, thus increasing the strength of the wire stent in the radial direction while maintaining the unique flexibility of the wire stent, thereby minimizing a recoil phenomenon and shortening phenomenon. Further, the wire stent of the present invention is configured such that the width of the strut of the stent increases toward the inner wall of a blood vessel to thus enable endothelial cellularization to be easily performed, and the stent is fixed at the inner wall of the blood vessel in a more firm manner to thus be more effective in treating angiostenosis.

Abstract: The present invention relates to a balloon catheter. The invention comprises: a first shaft; an expandable balloon which is attached to the front end of the first shaft; an expandable lumen which is formed inside the first shaft and to which a liquid required for expanding the balloon is provided; a second shaft which extends from the front end of the first shaft to which the balloon is attached and has a wire hole through which a guide wire passes; and a guide wire lumen, which is formed inside the second shaft and through which the guide wire passes. According to the invention, the first and second shafts are coaxially connected and the expandable lumen and the guide wire lumen are respectively formed in each shaft in order to reduce the overall diameter of the shaft, thereby facilitating surgery and improving pushability.

Abstract: The present invention relates to a stent for protecting a branch blood vessel at a branch-point lesion. The stent is inserted into and widened in a main blood vessel having the branch blood vessel extending in a slant from the branch-point lesion, thereby simultaneously expanding the main blood vessel and providing a smooth flow of blood towards the branch blood vessel. As a result, it is possible to simultaneously expand the main blood vessel and to sufficiently secure a passage from the main blood vessel towards the branch blood vessel. As such, the flow of blood is kept smooth. Further, after the stent is inserted into the main blood vessel, another stent, a guide wire, and related tools and catheter can be inserted in the direction of the branch blood vessel in a more accurate manner.

Abstract: The present invention relates to a stent for protecting a branch blood vessel at a branch-point lesion. The stent is inserted into and widened in a main blood vessel having the branch blood vessel extending in a slant from the branch-point lesion, thereby simultaneously expanding the main blood vessel and providing a smooth flow of blood towards the branch blood vessel. As a result, it is possible to simultaneously expand the main blood vessel and to sufficiently secure a passage from the main blood vessel towards the branch blood vessel. As such, the flow of blood is kept smooth. Further, after the stent is inserted into the main blood vessel, another stent, a guide wire, and related tools and catheter can be inserted in the direction of the branch blood vessel in a more accurate manner.

Abstract: Provided is an H-side branch stent including a first stent having a plurality of cells and a hollow cylindrical shape, at least one bridge having one end connected to a distal end of the first stent, and a second stent having a front end connected to the other end of the bridge, and having a plurality of cells and a hollow cylindrical shape. Accordingly, the H-side branch stent can prevent re-stenosis of the opening of the branch blood vessel since the stent can completely support an inner circumference of an opening of a branch blood vessel in a circumferential direction, and prevent blood flow disturbance because stents are not densely concentrated to a boundary between a main blood vessel and the branch blood vessel and some regions of the stent do not project into the main blood vessel.