Ophthalmoscope Head 3.5v Standard Orthopedic Care Heartbeat: 40 200 minute or Parkinson s Heartbeat: 40 200 minute Lateral Rotation and True Low Air Loss in a portable system * 18 independent 9 deep air cells reduce interface pressure for the prevention and treatment of Stages I IV pressure ulcers * Lateral Rotation Therapy reduces the risk of pulmonary complications for patients who are immobile * Dual mode turning radius featuring a 25 degree small turn and a 40 degree big turn * User friendly controls and ease of set up make this system ideal for institutional use and the homebound patient * Designed to fit all standard hospital beds and includes a convoluted foam base head bolster and abduction wedge for additional patient safety * Supports patient weights up to 650 Lbs Head Only * Apertures include: micro spot small large fixation slit and red free filter * Halogen light for true tissue color and consistent long lasting illumination * 6 apertures for all general and specialist use * 28 lenses 25 to +40 diopters for better resolution * Rubber brow rest prevents scratching of eyeglasses * Illuminuated lens dial clearly identifies setting * Replacement lamp WA03000 *