Abstract: An apparatus and method for measuring spatial displacement of an animal's paw injected with irritant. This apparatus comprises an electromagnetic detecting assembly having (1) a transmitting oscillator for generating electrical current (2) an electromagnetic transmitter coil coupled to the oscillator for generating an electromagnetic field (3) an electromagnetic receiving coil placed in axial plane directly below the transmitter coil (4) a first, receiving amplifier connected to the receiving coil (5) an amplitude detector connected to the receiving amplifier (6) a second amplifier connected to the amplitude detector (7) a metal object attached to the animal's paw (8) and a cylindrical observation chamber of a diameter not greater than the diameter of the generated magnetic field.

Abstract: An apparatus and method for measuring spatial displacement of an animal's paw injected with irritant. This apparatus comprises an electromagnetic detecting assembly having (1) a transmitting occilator for generating electrical current (2) an electromagnetic transmitter coil coupled to the occilator for generating an electromagnetic field (3) an electromagnetic receiving coil placed in axial plane directly below the transmitter coil (4) a first, receiving amplifier connected to the receiving coil (5) an amplitude detector connected to the receiving amplifier (6) a second amplifier connected to the amplitude detector (7) a metal object attached to the animal's paw (8) and a cylindrical observation chamber of a diameter not greater than the diameter of the generated magnetic field.

Abstract: The automatic injection device comprises two syringes, one for injecting a measured quantity of radionuclide and a second for injecting a saline solution for flushing the intravenous tubing through which the radionuclide has been delivered. Each of these syringes is driven by a motor which compresses the plunger of the syringe causing it to inject its contents. The motors receive an activation signal from a computer controller which initiates the injection sequence upon receipt of a trigger signal which is provided either by a separate seizure detection computer, by activation by the patient who recognizes an aura indicative of an imminent seizure, or by activation by medical personnel observing the patient. The computer implements a delay cycle to permit verification of the trigger to avoid initiating the injection sequence in the event of false alarms.