The best methods of treating operative wounds / by Henry O. Marcy.

  • Marcy, Henry O. (Henry Orlando), 1837-1924.
Date:
[1882]
Catalogue details

Licence: Public Domain Mark

Credit: The best methods of treating operative wounds / by Henry O. Marcy. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

    17/18 (page 15)
    protected from the air. put aside, and watched for the first evidences of putrefaction. Supp jse the putrefac- tive elements have preserved their vitality during this time of contact with the antisept-c; they are released from further antiseptic action when these two drops mix with, and are diluted in. the aseptic nutrient solu- tion and are then free to set up putrefactive changes in it. If, therefore, putrefaction appears in the test solu- tion, we know that the antiseptic had not acted long enough upon the germs of putrefaction to destroy them. We repeat the experiment with a longer time of exposure, and so proceed till we reach the time that proves sufficient for the destruction of the putrefactive elements, and we then find that the aseptic solution continues clear and sweet. The sign of putrefaction which was relied upon in these experiments was the appearance of cloudiness, due to the presence of micro- organisms and their presence or absence was always verified by the microscope.” The aseptic solution is prepared by boiling several small pieces of meat with a large quantity of water in a glass flask purified by exposure to the flame of an alcohol bmp. This flask is stopped with a rubber cork perforated by two glass tubes for the convenience of decanting. The tubes are bent downwards and the ends are carefully protected with carbolized gauze. The cork and tubes are carefully cleansed beforehand with carbolic acid. The resulting solution, if made with lean meat settles clear; if the meat is fat, the solution is rendered cloudy by fine oil drops and must be prepared again. The mingled fluid is placed in a test tube purified by heat and this is covered by a bell glass similarly puri- fied which rests upon a carbolized cushion. In this way it issubject to easy inspection and is protected from all external agencies. i. Acidi carbolici 1-20 S seconds. . 44 is J 1-40 2 minutes. 3. Thymol 1-500 “ 4- “ ' i-iooo exposed 2-4 minutes failed. 5. Acidi salicylici 1-100 3 14 6. Listerine 4 minutes. 7. Zinci chloridi 1-12 5 minutes.