Abstract: Apparatus and a non-invasive technique are disclosed for the control of glucose levels in living animals afflicted with hyperglycemia. The apparatus is used to apply a uniform, monopolar pulsed magnetic field to cause electric currents and field generation in the animal. The pulsed magnetic fields are obtained by transmitting individual pulses of direct current to Helmholtz coils located on opposite sides of the animal. The optimum pulse train configuration for the test animals, which were a breed of white rats, is a pulse repetition rate of 15 hertz, a pulse amplitude of 60 millivolts, and a pulse width of 350 microseconds. The generated field in the preferred embodiment was about 15 gauss. Although the treated rats did not have a normal serum glucose level, the depicted serum glucose levels are significantly lower than those of the control animals.

Abstract: A two-chambered underwater drainage apparatus is provided which is adapted to be connected with the pleural cavity of a patient by means of a thorocotomy tube. The underwater seal which prevents the flow of atmospheric air from the device to the pleural cavity of the patient is formed at the lower end of the thorocotomy tube and the secretions from the body cavity form the liquid in the seal. A oneway valve is provided at the outlet from the device to prevent backflow of air from the atmosphere into the device, but, permits outflow of air from within the device when the air pressure within the device is higher than atmospheric pressure or when the device is used with a suction pump. A hanger attachment is provided which permits the device to stand on the floor or be hooked onto the bedside.