Abstract: The ligation device includes a tubular body having a tubular shape and including a hollow part into which a string-shaped body can be inserted. The tubular body includes a proximal opening and a distal opening at a proximal end part and a distal end part, respectively. The proximal opening and the distal opening communicate with each other via a lumen of the tubular body. The side of a first end part of the string-shaped body can be inserted into the hollow part. The tubular body includes, on the distal end part, a locking part capable of locking the side of a second end part of the string-shaped body, after the string-shaped body is wound around the target, in a state where the first end part side of the string-shaped body is inserted into the lumen.

Abstract: In a ligation device for performing ligation by inserting a string-shaped body wound around a target into a tubular body, an object is to provide a ligation device that does not require a special instrument during the insertion of the string-shaped body and offers excellent workability. A means for solving the problem is a ligation device 1 for ligating a target V. The ligation device 1 includes a tubular body 2 having a tubular shape and including a hollow part 5 into which a string-shaped body 20 can be inserted. The tubular body 2 includes a proximal opening and a distal opening at a proximal end part 3 and a distal end part 4, respectively. The proximal opening and the distal opening communicate with each other via a lumen 5 of the tubular body 2. The side of a first end part 21 of the string-shaped body 20 can be inserted into the hollow part 5.

Abstract: A winged injection needle including an injection needle main body, a base that supports the base end of the injection needle main body and wings that protrude from the base toward the left and right sides to function as handles, the wings being constructed with plate members that are freely foldable through hinge sections so that in the folded state, they protrude from the base toward the left and right sides to function as handles, while in the expanded state, they extend from the base along the injection needle main body toward the leading edge of the injection needle to function as a safety cover that covers the injection needle main body.

Abstract: An epidural space identification device to identify when a tip of a needle used for epidural anesthesia enters an epidural space that includes a barrel formed in a cylindrical shape and communicatively connected to a needle section, a plunger formed in a cylindrical shape, retractably inserted into the barrel, and having an air hole communicating with an inside of the plunger, and an expansible member having an expansible part provided at a front end part of the plunger and bulging inside of the plunger with a positive pressure generated by pushing the plunger while air discharge from a needle side is regulated.