Abstract: A scalpel is disclosed for the accurate and rapid formation of flaps or thin sections of skin during many types of surgical procedures (such as excision or reconstruction) in which it is necessary for the surgeon to make an oblique extended cut into the patient's skin and lift an elongated flap of the outer layers of the skin to obtain access to deeper layers of tissue, muscle or bone below. The scalpel has an elongated handle having two opposite ends; a cutting blade extending laterally from one of the ends; and a depth-of-cut limiting plate extending laterally from the same end and disposed parallel to and spaced apart from the cutting blade. The limiting plate has an aperture therein through which the surgeon can view the cutting blade during use. The scalpel thus limits the maximum thickness of tissue that can be cut with the cutting blade.

Abstract: An intradermal injection device is described which is placed against the skin of a patient and uses a reciprocating needle to inject ink, dye or similar fluid under the patient's skin, usually in a predetermined visible pattern. Unlike prior art devices of this type, however, the present device is readily disassembleable for rapid and thorough cleaning, since it is formed of a plurality of components which fit together through easily separable and cleanable couplings such as overlapping sealed (O-ring interference) fits or by threads. It also has a unique structure which avoids potential contamination of the drive components by having the drive mechanism offset at a substantial angle from the axis of the reciprocating needle and needle drive shaft and also by preferentially including internal fluid passage barriers such as fluid knock-out spaces. The device is preferably formed of metal such as aluminum or stainless steel, and may be electrically or fluid driven.

Abstract: A portable ski wax applicator including a heat conductive box-like, wax-receiving compartment having an inlet in the top wall thereof for receipt of wax. One end of the compartment is formed with a plurality of through wax metering orifices which terminate at their outer extremities adjacent an elongated spreader for spreading wax metered therethrough. An electrical heater is mounted within such housing for heating wax received therein and a low coefficient of heat transfer handle is secured to such housing whereby wax may be received in such opening and heated to flow out such orifices as the applicator is passed over the surface of a ski to be waxed for spreading wax in a uniform layer thereon.