McKesson nitrous oxide machine for administering anaesthesia during dental surgery. This machine was one of many invented by Dr Elmer McKesson (1881-1935). The machine incorported the McKeeson intermittent flow apparatus,an automatic cut-off regulated by the patient's breathing. This meant the stream of air and gas only flowed when the patient inhaled,preventing waste and the escape of the anaesthetic into the room | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library |
Bildgröße: | 3434 px × 5088 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |