Abstract: Radio interface apparatus in combination with a lapel mounted microphone and speaker and a radio and with or without a head-protective helmet, radio interface apparatus in combination with a lapel-mounted radio and with or without a head-protective helmet, and radio interface apparatus for being mounted to the nape device of a head-protective helmet.

Abstract: An oxygen tank holder of a suitable fabric material includes a pouch for holding an oxygen tank, and which pouch is strapped at its upper and lower ends to the back of a wheelchair. The straps are adjustable to accommodate various size wheelchairs and so that the pouch can be displaced away from the center of the wheelchair to avoid interfering with the back of the user of the chair, as is desireable.

Abstract: A raised superimposed toilet seat is adapted to fit on a conventional toilet seat and is contoured to particularly meet the needs of patients who have undergone unilateral or bilateral total hip replacement procedures. The seat is contoured so that when the patient is seated thereon, the patient's legs are kept adducted in the proper position, ensuring that the patient's hips are placed with the proper amount of hip flexion and abduction to prevent hip dislocation.

Abstract: A raised toilet seat is superimposed upon the bowl of a conventional toilet. A clamp has a section which includes pins that engage holes in a recess on the underside of the seat at the rear thereof to secure the clamp to the seat. The clamp has another section which extends from the rear of and beyond the seat and which fits into a space provided when the lid and the seat of the conventional toilet are lifted. In a modified form the clamp has end sections which extend beyond the sides of the seat at the rear thereof, and which end sections support user support members or the like, for enhancing the use of the seat for those who have need for same.