Abstract: A method of extracting proteins and peptides from nano pearl powder comprising the steps of preparing a solution containing uniformly dissolved nano pearl powder; rotating the solution to form a suspension; sifting the suspension; separating a first organic compound extract of pearl having a molecular weight more than a predetermined molecular weight and a second organic compound extract of pearl having a molecular weight less than the predetermined molecular weight from the sifted suspension respectively; and activating a first gel filter to obtain pearl proteins from the first organic compound extract of pearl, and activating a second gel filter to obtain pearl peptides from the second organic compound extract of pearl respectively.

Abstract: A multi-function and automatic sick bed, which comprises left and right elevating mechanisms, front and rear elevating mechanisms, each of the aforesaid elevating mechanisms includes motor, gears, screw rod and connecting rod; each such elevating mechanism can be adjusted to provide a comfortable position for a patient's head, legs or feet.

Abstract: A dripping apparatus for intravenous administration includes: an intravenous container filled with a medical liquid in the container, a reservoir connected to the intravenous container having a diaphragm formed in a lower portion of the reservoir, a delivery tube connected to the reservoir for directing the medical liquid from the container and the reservoir to an injection needle or cannula into a patient's body through a dripping flow rate adjuster, and a floatable valve slidably held in the diaphragm in the reservoir, in which the valve is operatively floated to open a valve opening in the diaphragm by the liquid in the reservoir for performing the dripping operation and upon an exhausting or empty in the reservoir, the valve will gravitationally descend to close the valve opening for preventing air entrance into the needle and preventing a backflow of a patient's blood to clog the needle.

Abstract: A sterilizing vacuum cleaner includes at least an ultraviolet lamp disposed around a suction nozzle provided in a bottom portion of a hood secured with the cleaner housing, having a reflecting shade mounted on a back side of the ultraviolet lamp for reflecting the ultraviolet rays emitted from the lamp towards the surface to be cleaned and towards the nozzle duct made of transparent sheet and of ultraviolet-ray transmittable material, so that the dusts or pollutants containing bacteria or fungi laden on the air stream sucked by the cleaner will be sterilized by the ultraviolet lamp for hygienic purpose and for a good housekeeping in a hospital or in any other interior of a building.