The gastric motor phenomena demonstrated with the projecting kinetoscope : with description of rapid film-changing device / by Lewis Gregory Cole.

  • Lewis Gregory Cole
Date:
1912
Catalogue details

Licence: In copyright

Credit: The gastric motor phenomena demonstrated with the projecting kinetoscope : with description of rapid film-changing device / by Lewis Gregory Cole. 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.

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    will refer to as the unobstructed types of peristalsis in con- tradistinction to obstructed types of peristalsis where the contractions or waves are interfered with by new growths or adhesions near the pylorus. The author makes no claim that these are true Roentgen- cinematographs as defined by Kaestle, Rieder and Rosenthal, but he does claim that from a practical diagnostic standpoint, a series of eighteen or twenty instantaneous radiograms made of different phases of different cycles, studied individually and collectively, is of great value in the diagnosis of new growths and adhesions at the pyloric end of the stomach and these may be made by any radiographer without the use of an expensive yet imperfect plate, or film-changing device. There- fore, this work is within the reach of any radiologist, and the author will lay no claim to Roentgencinematographic repro- ductions until he succeeds in making four radiograms per second of gastric peristalsis. This apparatus for the rapid him changing device is made up in a box 30 long, 18 wide and 12 high. It is lined with sheet lead thick. The cover is made of clear soft white pine and is covered with lead except an open space 8x10 which is in the center of the cover. Directly under this in the center of the box is mounted a closed magnetic circuit type of electro-magnet “D,” having an aluminum plate 1/16 in thickness 8x10 and mounted on the plunger of the electro- magnet and on top of this aluminum plate is placed the in- tensifying screen “E.” The electro-magnet is adjusted by “J” so that the plunger moves 1/16 and when this move- ment takes place, the intensifying screen is brought up so that it presses firmly ag'ainst the sensitive film above it. At each end are mounted two pasteboard tubes “F.” On one of these is rolled the sensitive film. This is drawn across the intensifying screen and attached to the roll at the other end. The bearings of each of these rolls are mounted on an arrange- ment for adjusting the tension so that they turn rather hard. This is so that there will be no slack to the film when it is in operation. On the end that has the roll that winds up the film “K” there is an arrangement with a ratchet (this is inside of the