SYRINGE NEEDLE Russian patent published in 1996 - IPC

FIELD: medical appliances for injection of medicinal substances and blood aspiration. SUBSTANCE: needle tube is made with dead pointed working end to prevent clogging of its channel and reduce injury of soft tissues. Pointed working end has two cuts intersecting in axial plane of needle symmetry. Needle internal channel has outlet holes on the tube side surface located on cuts of needle working end. The area of outlet holes exceeds the sectional area of the internal channel of needle tube. EFFECT: higher efficiency. 5 dwg