Abstract: A spring-powered actuating device for operating the obturator and the cannula of a biopsy needle, and a cocking device removably attachable to the actuating device. The actuating device has a manually-operated trigger slide which controls separately the release of spring-powered slides for moving the obturator and the cannula so the surgeon determines the time interval between the release of the obturator and the later release of the cannula. The extent to which the trigger slide can be displaced manually is controlled by a manually adjustable safety slide which may be set in a first position to permit the trigger slide to release the slide for the obturator only and in a second position to permit the trigger slide to release the slide for the cannula. The cocking device, when attached to the actuating device, is movable pivotally toward the actuating device by squeezing them together manually and when so moved it retracts the slides for the obturator and the cannula to stress their springs which power them.

Abstract: A biopsy needles for use with a spring-operated actuating mechanism. The biopsy needle has a slide attached to the proximal end of its cannula and having an elongated slot extending longitudinally away from the cannula and a laterally projecting segment at the end away from the cannula. The biopsy needle also has a slide attached to the proximal end of its obturator and having a laterally projecting outer segment that extends on the opposite side from the laterally projecting segment of the cannula slide. The laterally projecting segment of the obturator slide is offset from the laterally projecting segment of the cannula slide in the direction toward the cannula and obturator when the obturator slide is at the end of the slot in the cannula slide away from the cannula and the obturator.

Abstract: An electrosurgical instrument for providing an interface between an electrosurgical electrode and an electrosurgical generator and for selectively providing electrical energy to the electrode for cutting, coagulation and the like, is provided. A hollow handle removably supports an electrode in one end and receives a three wire cable through an opening in its other end. The wires of the cable are supported and positioned on a substantially flat insert which has three flat-headed contact pins forced therein to penetrate the outer insulation of the wires and establish electrical contact with the wires. A conductor plate overlies the insert and is equipped with four conductor strips for contacting the electrode and the three contact pins, respectively. Switch buttons have stems that extend through apertures in the wall of the handle for selectively activating the conductor strips.

Abstract: An apparatus is disclosed for filling and capping a quantity of stackable containers with a fluid from a fluid reservoir. The apparatus comprises a rotary table having a plurality of apertures disposed therein for receiving the containers. Containers from a container magazine are transferred individually and placed within the apertures in the rotary table. A filling head is disposed at a second position for filling the container with the fluid pumped from the fluid reservoir. The filling head comprises a unique pinch bar and flexible tubing combination to insure rapid termination of fluid flow from the filling head. A lid magazine is disposed at a third position with a rotatable arm placing a lid from the lid magazine upon the filled container. A heat sealer located at a fourth position heat seals the lid to the container. A discharge station is located at a fifth position for discharging the capped containers from the rotary table.

Abstract: A liquid mixing and aeration system is disclosed comprising a novel liquid pump, a electronic circuit for controlling the system, and improved mixing for mixing flowing liquids. The system enables mixing of a first and a second liquids regulating fthe flow of the first liquid. A liquid pump is connected for pumping the second liquid. A control circuit controls the pump in accordance with the flow of the first liquid to maintain a given volumetric relationship between the first liquid and the second liquid. A mixer mixes the first and second liquid in accordance with the aforementioned volumetric relationship.

Abstract: A dispenser system is disclosed comprising a liquid dispenser pump, an electronic circuit for controlling the dispenser system, and a dispenser for dispensing a flowing liquid through a metering orifice. The dispenser system enables mixing and dispensing of a first and a second liquid in accordance with a given volumetric relationship between the first liquid and the second liquid. The system includes flow for controlling the flow of the first liquid and a pump for pumping a second liquid. The electronic circuit includes a generator for generating an electrical pumping signal to power the pump for pumping the second liquid in accordance with an electrical pumping signal. An activator is connected to the flow and the generator for activating simultaneous flow and pumping of the first and second liquids, respectively, upon a selected signal from the activator.

Abstract: Disclosed herein are cyanoperfluoro(vinyl ethers), intermediate acid fluorides; a process for preparing the acid fluorides, and a process for preparing the vinyl ethers from acid fluoride and an alkali-metal carbonate. Also disclosed are copolymers incorporating units derived from the vinyl ethers as crosslinking constituents therein.

Abstract: Disclosed herein are cyanoperfluoro(vinyl ethers), intermediate acid fluorides; a process for preparing the acid fluorides, and a process for preparing the vinyl ethers from acid fluoride and an alkali-metal carbonate. Also disclosed are copolymers incorporating units derived from the vinyl ethers as crosslinking constituents therein.