Abstract: A method of forming a porous coating layer on a surface of an implant for implantation into the living body is provided. The method includes a first step of providing an implant base body, which is made of a material including a metal component, and a second step of sintering metal powder on a surface of the implant base body using rapid prototyping. In the second step, a laser beam irradiation tool necessary for the rapid prototyping repeatedly moves along a predetermined movement path to sinter the metal powder, which is sprayed along the predetermined movement path, on the surface of the implant base body, and an inflection point is present between semicircular curved section paths in the predetermined movement path.

Abstract: There is disclosed a platform of an electric-movable bed for preventing bedsores and capable of changing a shaft including a plate unit. The platform includes a plurality of main plates rotatably provided to support the human body, a plurality of sub plates rotatably and hingedly coupled to the main plates, respectively, and a locking part provided between each main plate and each sub plate to enable or lock the rotation of each main plate or sub plate, the plate unit being configured to selectively rotate a corresponding portion to a position of the joint according to a user's body type; a first driving unit configured to tilt an upper part of the human body lying on the plate unit; and a second driving unit configured to tilt a lower part of the human body lying on the plate unit.

Abstract: There is disclosed a lift device including a base frame; a main frame comprising a fixing member longitudinally formed in an up and down direction, coupled to the base frame, and a movable member movably provided in an up and down direction; a bed unit connected to the movable member, positioned in front of the main frame; a operation unit having an end connected to the movable member or the bed unit and the other end extended forwardly, with a ring-shaped operation control part provided in the other end thereof to put a user's finger thereon; and a driving unit to move the movable member upwardly based on input of the operation control part, wherein the operation control part comprises an upper input means positioned in an inner top surface thereof to upwardly move the movable member based on an input signal and a lower input means position in an inner bottom surface thereof to downwardly move the movable member based on an input signal.

Abstract: There is disclosed a platform of an electric-movable bed for preventing bedsores and capable of changing a shaft including a plate unit. The platform includes a plurality of main plates rotatably provided to support the human body, a plurality of sub plates rotatably and hingedly coupled to the main plates, respectively, and a locking part provided between each main plate and each sub plate to enable or lock the rotation of each main plate or sub plate, the plate unit being configured to selectively rotate a corresponding portion to a position of the joint according to a user's body type; a first driving unit configured to tilt an upper part of the human body lying on the plate unit; and a second driving unit configured to tilt a lower part of the human body lying on the plate unit.

Abstract: There is disclosed a lift device including a base frame; a main frame comprising a fixing member longitudinally formed in the vertical direction, coupled to the base frame, and a movable member movably provided in the vertical direction; a bed unit connected to the movable member, positioned in front of the main frame; a operation unit having an end connected to the movable member or the bed unit and the other end extended forwardly, with a ring-shaped operation control part provided in the other end thereof to put a user's finger thereon; and a driving unit comprising a first driving part configured to moves the movable member upwardly based on input of the operation control part. The operation control part comprises an upper input means for upwardly moving the movable member and a lower input means for downwardly moving the movable member based on an input signal.

Abstract: The present invention relates to a movable lift device including an overturn preventing system that uses variation in the center of gravity when rotating a bed unit where a user is laid down to prevent a movable lift device from overturning, which includes a base frame defining a bottom surface; an upper structure comprising a post rotatably upwardly extended from the base frame a predetermined length and a bed unit supported by the post, being horizontal with the bottom surface to enable a user to lie down, wherein the bed unit is rotatably provided with respect to the base frame; and an overturn preventing control unit for controlling the height of the bed unit with respect to the base frame based on the rotation of the bed unit.