Hypodermic projectile with barb in the cannula bevel

Claim 1

A PROJECTILE FOR INJECTION OF LIQUIDS INTO ANIMALS FOLLOWING TRAVERSAL OF A PRESCRIBED TRAJECTORY COMPRISING A BARREL, A STABILIZER SECURED TO THE TAIL END OF SAID BARREL FOR STABILIZING THE FLIGHT OF THE PROJECTILE, A PISTON WITHIN SAID BARREL INTERMEDIATE ITS ENDS DIVIDING THE BARREL INTO A FRONT LIQUID CARRYING CHAMBER AND A REAR PROPELLING CHAMBER FOR, RESPECTIVELY, CARRYING LIQUID TO BE INJECTED AND PROPELLING MEANS, A CANNULA HAVING A FORWARD BEVELED PIERCING AND PENETRATING POINTED END AND BEING CONNECTED TO THE FORWARD END OF THE BARREL WITH THE LUMEN OF THE CANNULA ADAPTED TO COMMUNICATE WITH THE LIQUID CARRYING CHAMBER, WHEREBY UPON ACTUATION OF THE PROPELLING MEANS THE PISTON IS DRIVEN FORWARDLY TO EXPEL THE LIQUID IN THE CARRYING CHAMBER OUT THROUGH THE LUMEN OF THE CANNULA, AND A BARB AT THE POINTED PENETRATING END OF THE CANNULA WITHIN THE CONFINES OF THE BEVEL, SAID BARB EXTENDING ANGULARLY WITH RESPECT TO THE LONGITUDINAL AXIS OF THE CANNULA, SAID BARB EMBODYING A PUNCHED SEGMENT OF THE WALLS OF THE CANNULA AT THE PENETRATING END, SAID SEGMENT BEING BENT OUTWARDLY WITH RESPECT TO THE AXIS OF THE CANNULA, THE SEGMENT BEING SUBSTANTIALLY PLANAR WITH THE PLANE OF THE SEGMENT EXTENDING REARWARDLY AT AN ACUTE ANGLE WITH RESPECT TO THE AXIS OF THE CANNULA.