Abstract: The present disclosure relates to a gait rehabilitation device, and the gait rehabilitation device according to the present disclosure includes a load providing portion (200) including a body (210) and a rotating shaft (220) which rotates relative to the body (210) to generate a load, wherein the rotating shaft (220) is coupled to a side of a human body, a rotation member (300) rotatably coupled to the body (210) and coupled to an opposite side of the human body, and a rotation control portion (400) to allow or disallow the rotation member (300) to rotate relative to the load providing portion (200).

Abstract: The present disclosure relates to an airbag structure, and the airbag structure according to the present disclosure includes a body (100) into which a fluid is injected, wherein a plurality of predetermined points (A) spaced apart from each other is arranged on a side along a lengthwise direction, and a protrusion (200) into which the fluid is injected from the body (100), the protrusion (200) extending from the two adjacent predetermined points (A) in a direction facing away from the body (100), wherein the protrusion (200) has a smaller width of a farthest end from the body (100) than a width of an opposite end connected to the body (100).

Abstract: Disclosed is a circular stapler. The circular stapler includes a head cover (100) formed in a tubular shape so that a space is defined therein, a cartridge (200) provided in one end of the head cover (100) to accommodate a staple therein, a staple drive (300) provided inside the head cover (100) to extrude the staple from the cartridge (200) while moving toward the cartridge (200), a sensor drive (400) provided inside the head cover (100) and configured to come into contact with the cartridge (200), and a pressure sensor (500) provided inside the head cover (200) to measure pressure applied to the cartridge (200) by receiving the pressure from the sensor drive (400).

Abstract: The present disclosure relates to an airbag including a vent hole. The airbag including a vent hole, according to the present disclosure, comprises: a protection means (100) mounted on a predetermined part of a user, and inflated when gas is injected therein, thereby protecting the user; a body part (200) inserted into the vent hole (150), which is formed in the protection means (100), so as to enable fluid to flow through the inner and outer sides of the protection means (100); an elastic body (300) closing the body part (200), and inflated by the pressure of the gas inside the protection means (100) when the gas is injected into the protection means (100); and an opening and closing means (400), which opens the body part (200) by tearing the inflated elastic body (300) after the user falls, so as to discharge, to the outside, the gas injected into the protection means (100).

Abstract: Disclosed is a circular stapler. The circular stapler includes a head cover (100) formed in a tubular shape so that a space is defined therein, a cartridge (200) provided in one end of the head cover (100) to accommodate a staple therein, a staple drive (300) provided inside the head cover (100) to extrude the staple from the cartridge (200) while moving toward the cartridge (200), a sensor drive (400) provided inside the head cover (100) and configured to come into contact with the cartridge (200), and a pressure sensor (500) provided inside the head cover (200) to measure pressure applied to the cartridge (200) by receiving the pressure from the sensor drive (400).