Abstract: A medical fluid dispersing cannula for use in spraying and irrigation applications. The cannula comprises a cannula member, a plurality of ports, and an adapter. The cannula member has a lumen, a proximal end, and a curved, integrally formed distal end. The cannula member has a normal central longitudinal axis. The cannula member has an elongated, thin tubular configuration. The cannula member is flexible and constructed of a polymeric material. Preferably three ports in the cannula member are disposed on the curved distal end thereof, the ports being circular and disposed on the curved distal end so that they diverge with respect to each other and with respect to the central longitudinal axis. The luer adapter is connected to the proximal end of the cannula member for connection to a fluid source and to provide communication with the lumen of the cannula member and to the ports. Fluid entering the adapter is communicated through the lumen and is widely dispersed via the divergent ports.

Abstract: A syringe for controlling the amount of material or medical fluid in a syringe body which is expelled therefrom upon depression of a plunger in the syringe body. The syringe includes a syringe body having a chamber and a discharge end portion and an open opposite end portion, with a plunger received in the syringe body. A measuring ring having an inner thread in mesh with an outer thread on the plunger, with latch means for setting and holding the measuring ring and plunger and thus, permit an exact volume to be expelled from said chamber.