Abstract: A motion platform having decoupled two axes adopts four modularized pneumatic bellows configured in an orthogonal arrangement. The pneumatic bellows can be independently controlled to cause the motion platform to be operated in one rotational degree of freedom with a frontward-and-backward swinging or a leftward-and-rightward swinging; or the pneumatic bellows can be synchronously controlled to cause the motion platform operated in two rotational degrees of freedom without being interfered with each other. Thus, the motion platform of the present disclosure is characterized with advantages of simplified mechanism, fewer components, convenient maintenance and reduced cost.

Abstract: A check sealing set of intravenous injection catheter for drip infusion to seal up a needle retained in human body includes a check body, a locking seat, and a mobile cover; the check body related to an arc body provided with a retaining edge and a check seam disposed below the retaining edge; the locking seat related to a tube seat having on one end disposed with a locking slot and a groove on its outer circumference; the mobile cover has its neck ring to engage the groove of the locking seat so to merely cover up an exposed end of the locking seat; the check set is connected to an IV set when assembled with a terminal of the IV catheter for preventing blood from flowing back to a tube (it is impossible for the prior art of drip infusion to provide the check purpose); the tube is plugged off when the drip infusion is not required for the check cover to serve a protection cover to allow direct insertion through a rubber pad if subsequent drip infusion or adding medicine into the fluid, thus to avoid repeated

Abstract: The present invention relates to a hub concealed by tabletop, where a top lid is joined to a bottom casing and a space within the hub is configured to receive multiple electrical components. The hub includes a plurality of resilient key buttons to be secured to the apertures formed on opposing sides of the base to allow the hub to rotate about the resilient key buttons over the base. The hub is rotatable to an exposed state in use or a concealed state when not in use by the engagement between two tennon devices and tennon openings of the base, wherein the base is further pressed into a circular opening preformed on tabletop by the opposing securing tabs so as to join to the tabletop. The hub may be rotated to expose out of the tabletop in use, and to be concealed underneath the tabletop when not in use.