File:The Journal of laboratory and clinical medicine (1915) (14780498485).jpg

Identifier: journaloflaborat01cent (find matches)
Title: The Journal of laboratory and clinical medicine
Year: 1915 (1910s)
Authors: Central Society for Clinical Research (U.S.)
Subjects: Biological Assay Diagnosis, Laboratory Disease Medicine Medicine Research
Publisher: St. Louis, C. V. Mosby
Contributing Library: Gerstein - University of Toronto
Digitizing Sponsor: University of Toronto

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our feet long,thus enabling the anaesthetist to place the apparatus at a considerable distance from the animal whenan ansesthetic is being given. Pig. #.—C.eneral view of the apparatus showing the front and left sides. The position of thewash jars is well shown. the outlet is at the bottom. This occurs only while the pump is running. Ifthe pump be stopped any desired amount of rehreathing mav be secured. Oxy-gen may be allowed to reach the bag constantly or intermittently as preferredso the oxygen supply to the animal is entirely independent of the rebreathing or 6 The Journal of Laboratory and Clinical Medicine of the carbon dioxide content of the bag. (These same principles apply in theface-piece which I have constructed for the human subject.) From the head-niece air passes out through the rubber hose at (17) and back to the machniewith which it is connected by the metal pipe (21). These two pieces of rub-ber hose are clamped side by side by small flat metal clamps. They are thus
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Fig —-View showing the upper portion of the apparatus. The breathing bag and face-pieceas arrangerl for man are shown hanging from a hook at the top of the apparatus. kept almost entirely out of the way. This head-piece may also be used for m-tra-tracheal insufflation. The tube leading to the head-piece in this case has aY-tube inserted in its course near the brass cylinder of the head-piece. Fromthe two forks of the Y-tube short rubber tubes carrying screw clamps pass tothe cylinder. One of these ttibes connects onto the inlet tube as usual. The General Analgesia and Anccsthcsia 7 other rubber tube is connected with the inside of the cyHnder by means of asmall metal or glass tube passing through a cork inserted in an opening in thebrass cylinder (not shown in the diagram). From this small tube inside thecylinder a catheter may be passed out through the flange (20) and either enterthe trachea directly or pass in at the side tube of a tracheal cannula. The cor-rect amount of pressure

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