Abstract: A portable chamber for enclosing a portion of the body, such as the lower leg, for treatment with oxygen or other gas at pressures above atmospheric, the chamber having a closed end and a limb-receiving sleeve in its entrance end, the sleeve being inflatable to ensure effective closing off of the chamber from ambient air, for maintaining desired pressure in the chamber and preventing uncontrolled escape of the gas while eliminating the danger of too tight binding of the limb. Simple means for controlling pressure and humidity may be provided.

Abstract: An apparatus for stimulating the anal sphincter is provided in order to maintain the anal sphincter in a substantially continuously contracted condition. The apparatus includes a plug which is inserted in the anus such that a portion of the plug is surrounded by the anal sphincter. Electrodes are mounted on the plug in contact with anal sphincter and a signal generator generates a biphasic output signal having a positive pulse portion, a negative pulse portion and a zero output portion. The output signal is applied to the anal sphincter through the electrodes, thus causing the anal sphincter to contract and remain in a substantially contracted condition. The signal generator comprises a timer circuit which is used to operate a counter and an output driver which is controlled by the counter. The output signal from the output driver is applied to the anal sphincter through the electrodes.