Abstract: A pin cap to protect the end of a pin that is usable with a range of pin sizes. The pin cap has a generally cylindrical shape with a closed end and an open end. The open end may have a tapered entry to facilitate insertion of the pin end into the pin cap. The interior of the body of the pin cap has a plurality of concave diaphragms with stellate center cuts. A pin is directed toward the center of each diaphragm while compression of the pin body compresses the diaphragms, thereby allowing the stellate center cut to open to allow the pin to pass through the diaphragm. When pressure on the pin body is relaxed, the stellate center cuts close down on the pin to hold it in place. By selecting the type of material used for the diaphragms, the number of diaphragms and the number of slots in the stellate center cut, the resistance of the pin cap to being pulled off the pin can be set. The concave shape of the diaphrams also resists removal of the pin cap from a pin.

Abstract: A method of treating various anxiety-related disorders, such as Post-Traumatic Stress Disorder, panic attacks, or general anxiety disorder is disclosed. It has been found that the P1 midlatency auditory evoked potential of such patients undergoes increased amplitude and decreased habituation. Stimulation of three specific acupuncture points LR3, HT3, and PC6) on three different acupuncture meridians has been found to reduce the amplitude of the P1 potential using 20-minute periods of stimulation. Low frequency stimulation (around 5 Hz) was found to be most effective. Repeated periods of stimulation were also found to increase the effect of the treatment.