Abstract: Disclosed herein is a drug-coated balloon catheter including: a hub; a soft tip; a tube which connects the hub and the soft tip and is formed of a material having higher rigidity than the soft tip; and a balloon which is mounted on the tube and coated with a drug on the surface, wherein the tube includes: a guide lumen which allows a guide wire to be movable, the guide wire being inserted into a blood vessel via the hub; and an injection lumen into which a contrast medium is injected, the contrast medium being injected into the balloon through the hub or discharged therefrom, wherein the injection lumen includes: a flow center which is a portion corresponding to a width of the guide lumen; and a pair of bend supports which is extended beyond both end portions of the guide lumen on both sides of the flow center and deformed in response to bending of the tube, and the injection lumen has a cross-sectional area more than a half of a cross-sectional area of the guide lumen.

Abstract: The present disclosure provides a drilling driver for placing a dental implant. The drilling driver includes: a tip part having a first outer diameter and having a cutting edge; a small-diameter part extended from the tip part, and having a second outer diameter smaller than the first outer diameter; and a large-diameter part positioned farther from the tip part than the small-diameter part, and having a third outer diameter larger than the first outer diameter.

Abstract: The present disclosure provides a drilling driver for placing a dental implant. The drilling driver includes: a tip part having a first outer diameter and having a cutting edge; a small-diameter part extended from the tip part, and having a second outer diameter smaller than the first outer diameter; and a large-diameter part positioned farther from the tip part than the small-diameter part, and having a third outer diameter larger than the first outer diameter.

Abstract: The present disclosure relates to a multi drilling guide device for operating an implant. By way of example, the multi drilling guide device includes: a rod extending in a longitudinal direction; a fixing portion combined with one end of the rod and having a drill hole penetrating therethrough; and a guide portion coupled to the rod so as to be movable and rotatable along the rod and having a guide hole.