Gwathmey anaesthetic machine,1913

Bildnummer 11695847
Gwathmey anaesthetic machine,1913
Gwathmey anaesthetic machine,1913. James Gwathmey (1862-1944) and William Woolsey (1876-1919) were US anaesthetists who invented an early continuous flow nitrous oxide,oxygen and ether anaesthetic machine in 1912. The gases were routed through two perforated tubes in a glass mixing chamber containing water. The rate of flow could be estimated by observing the force of the resulting bubbles. The apparatus had the main elements which are still present in modern machines; providing an accurate and continuous supply of medical gases such as oxygen and nitrous oxide,mixed with an accurate concentration of anaesthetic vapour (such as ether),delivered to the patient at a safe pressure and flow. Henry Boyle's machine,which was based on the earlier Gwathmey-Woolsey apparatus,was introduced in 1917 and became the best known continuous flow anaesthetic machine
Lizenzart: Lizenzpflichtig
Credit: Science Photo Library
Bildgröße: 3442 px × 5077 px
Modell-Rechte: nicht erforderlich
Eigentums-Rechte: nicht erforderlich
Restrictions: -

Preise für dieses Bild ab 15 €

Universitäten & Organisationen
(Informationsmaterial Digital, Informationsmaterial Print, Lehrmaterial Digital etc.)
ab 15 €
Redaktionell
(Bücher, Bücher: Sach- und Fachliteratur, Digitale Medien (redaktionell) etc.)
ab 30 €
Werbung
(Anzeigen, Aussenwerbung, Digitale Medien, Fernsehwerbung, Karten, Werbemittel, Zeitschriften etc.)
ab 55 €
Handelsprodukte
(bedruckte Textilie, Kalender, Postkarte, Grußkarte, Verpackung etc.)
ab 75 €
Pauschalpreise
Rechtepakete für die unbeschränkte Bildnutzung in Print oder Online
ab 495 €

Keywords

;