Instruments: For Heart, Home & Hospital

Doctors are always on the watch for more and better gadgets — in the operating room and laboratory, in their cars when they set out on emergency calls, or to hook onto the patient himself so that he can continue treatment outside a hospital. Promising new devices in each of these categories:

> Anesthetic explosions in the operating room can be properly guarded against only if the anesthesiologist gets an early warning—well before his mixture of gases has actually reached the danger point. Dr. John F. Zeedick of Braddock General Hospital, near Pittsburgh,...

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