Abstract: A simply and easily used safety syringe cap comprises a first cap, a second cap overlapped on the first cap. The first cap serves for sealing a syringe before being used so as to protect the syringe needle. At an opening of the second cap is formed with a trench along a longitudinal direction of the cap. Two sides of the trench are folded outwards to form the sliding pieces. Thereby, after the syringe needle is used, it may be guided into the second cap along the lateral directions of the sliding pieces. The trench is gradually reduced along the opening of the second cap. Thereby, the syringe needle can be guided into the cap by its lateral side to avoid hurting the user.

Abstract: The present invention relates to a base, a neck-holding seat and two resilient elements. The base is U-shaped, and each of two side walls thereof has an arched slide at the inner side thereof. An elongated slot is disposed at either side of the front end of a bottom surface. The neck-holding seat includes a neck-holding portion corresponding to the figure of the human neck, a guide roll disposed at each of outer sides thereof and at the corresponding position to the arched slide of the base, a positioning hook at either side of the front end of a bottom portion and at the corresponding position to the elongated slots of the base. The resilient elements is interposed between the base and the neck-holding seat and is positioned by a projecting member at either inner side of the side walls of the base and a guide roll shaft inside the neck-holding seat. Accordingly, the neck-holding seat is constantly supported at a prearranged height before the neck-holding seat presses down.