Abstract: The present disclosure provides a use of a pharmaceutical composition including adenine and/or a pharmaceutically acceptable salt thereof in a manufacture of a medicament for treating diabetic ulcers, and the medicament can effectively accelerate and enhance wound healing of diabetic ulcers and prevent scar formation.

Abstract: A universal serial bus pre-determining circuit for determining whether a universal serial bus is connected to a host or a device includes an input unit, a detection unit, a processing unit, and a switch unit. The input unit is connected to the host or the device. Once the input unit is connected to the host, the detection unit will enable the host, allowing the host to generate and send a synchronous signal to the input unit. Once the input unit is connected to the device, no synchronous signal will be generated. The processing unit determines accurately whether the universal serial bus is connected to the host or the device by judging the synchronous signal.

Abstract: A shaft sleeve for packing film, made of soft plastic, includes a grip provided with a flange at one end and an accommodating chamber in the interior. The accommodating chamber has inner wall fixed with plural oblique serrated bars respectively having one side formed with an inclined plane and another side provided with an engage surface. To pack articles with packing film, simply fit two shaft sleeves on the shaft rod 21 of the packing film to actuate the shaft rod to rotate clockwise through the inclined planes on the oblique serrated bars. To stop packing or apply force for tightening the packing film, only forcefully grip and press the shaft sleeves to let the engage surfaces of the oblique serrated bars counterclockwise engage and stop the shaft rod from rotating, able to pack articles tightly and prevent the packing film from rewinding and becoming slack.

Abstract: An inflatable shaft mainly includes an elastic rubbery sleeve mounted around the outer wall of plural outer pressing boards and able to expand outward to cover gaps formed among the outer pressing boards while inflating the inflatable shaft, so as to provide a seamless exterior surface for the air expanding shaft to be directly wound with a stuff without having the stuff sunk or clamped. And, the rubbery sleeve can shrink inward together with the outer pressing boards while deflating the inflatable shaft, forming a space between the rubbery sleeve and the stuff to enable the stuff easily separated from the deflated shaft. Thus, the stuff can be smoothly wound around the inflatable shaft inflated without using an additional tube, not only lowering manufacturing cost but also amiable to environment.

Abstract: A packing film stretching and rewinding machine includes a machine table provided thereon with a stretching device, a lip-folding device, a swing device and a rewinding device. A packing film can be stretched, lip-folded and rewound at the same time on the machine table. The packing film is stretched, lengthened and thinned by the stretching device and then the stretched packing film has the opposite edges folded by the lip-folding device to enhance the strength of the opposite edges of the packing film. Subsequently, the edged packing film is rewound into small rolls by the rewinding device. When the packing film is rewound into small rolls, the reel will not be deformed by tightening, needless to stop operating of the machine during whole operation, able to save man-power and lower producing cost.

Abstract: An umbrella skeleton has a major shaft and an umbrella frame, and the umbrella frame includes a connection member, a middle runner, a lower runner, a spring, a sleeve, multiple ribs, multiple first stretchers and second stretchers. Besides the normal function of the umbrella, the umbrella skeleton can be assembled by hand conveniently without any rivets and iron wires. Moreover, most elements can be made of plastic.