Abstract: A self contained battery operated electric toy spinning top contains a DC electric motor, flywheel, batteries and electric switch in stacked relationship that allows for efficient assembly of a gyroscopic toy. A spinning cardboard carton is produced by installing the energized top within the carton.

Abstract: The oriented biopsy needle assembly includes a cannula hub assembly having a cannula hub fixedly attached to the proximal end of a cannula and a barrel member integral with the proximal end of the cannula hub. The barrel member and cannula hub have longitudinally coaxial bore therethrough axially aligned with and extending to the cannula. A pair of inwardly flexible finger pinching arms formed integral with and extending lengthwise over the outer surface of the barrel member are aligned opposite to each other, and each arm has an inwardly extending detent positioned to be downwardly flexed into oppositely aligned corresponding cutout slots of the barrel member. The cannula hub assembly cooperates with a stylet hub at a proximal end, a shoulder portion at a distal end of the hub, and a distal stem portion extending distally from the shoulder portion and terminating at a distal end fixedly attached to the proximal end of a sampling stylet.

Abstract: A marking device which includes a hand-held housing and electrically powered means for vibrating the housing. An ink cylinder having a writing tip at its end is slidably supported within a cartridge casing, and a spring biases the cylinder outwardly on the casing. The casing is supported on the housing of the marking device.

Abstract: An amusement device including an elongate handle and a chamber defined at each of the opposite ends of the handle. An eccentric weight rotated under power is located in one chamber, and rotation of the weight produces vibrations in the device. Loose material composed of relatively movable members is confined within the other chamber. The loose material is set in motion with vibrations produced in the device.

Abstract: The arming device for use in manipulating with one hand a medical instrument comprises first and second telescoping members. The instrument members are longitudinally movable relative to one another, and the device comprises an arcuate flexible member having a forward portion and a rearward portion with means at the forward portion for engaging the first member of the instrument and means at the rearward portion for engaging the second member whereby squeezing of the flexible member laterally toward the instrument causes the first and second telescoping members to move longitudinally away from each other thereby to cause arming or operation of the instrument.

Abstract: The soft tissue core biopsy instrument comprises a proximal outer barrel member and a distal inner barrel member which is slidably received within the outer barrel member. A cannula driver is slidably received within the distal inner barrel member and has a distally extending cannula fixed thereto. A stylet extends distally from a stylet hub with a stylet hub being removably attached to the proximal outer barrel member. A spring is positioned within the inner barrel member between a proximal wall thereof and a proximal wall of the cannula driver for biasing the cannula driver forwardly and a latching mechanism for latching the cannula driver in a proximally retracted position against the action of spring is also provided. A trigger for unlatching the latching mechanism may be actuated to allow the spring to quickly return to its forwardly biased position, shooting or forcing the cannula driver to a distally extended position, projecting the cannula over said stylet.

Abstract: The soft tissue core biopsy instrument comprises a proximal outer barrel member having a distal end and a proximal end; a distal inner barrel member which is slidably received within said outer barrel member, which has a distal end and a proximal end and which has a stop in said distal end; a cannula driver in said inner barrel member; a cannula extending distally from said inner barrel member, being fixed to said cannula driver, and having a distal tip, said cannula driver being slidably received in and movable within said inner barrel member and said cannula extending a predetermined distance out of a distal end of said inner barrel member when the instrument is in an at-rest condition; a stylet having a distal end, a proximal end, and being removably received in said outer barrel, in said inner barrel, and in said cannula, said distal end having a biopsy sample receiving notch therein; a stylet hub mounted to said proximal end of said stylet; said stylet hub being removably attached to the proximal end of