Practical electro-therapeutics and X-ray therapy - with chapters on phototherapy, X-ray in eye surgery, X-ray in dentistry, and medico-legal aspect of the X-ray (1912) (14754757944)

Identifier: practicalelectro00mart (find matches)

Title: Practical electro-therapeutics and X-ray therapy : with chapters on phototherapy, X-ray in eye surgery, X-ray in dentistry, and medico-legal aspect of the X-ray

Year: 1912 (1910s)

Authors: Martin, James Madison, 1866-1947

Subjects: Electrotherapeutics X-rays Diagnosis, Radioscopic Eye Electric Stimulation Therapy X-Ray Therapy Ophthalmologic Surgical Procedures

Publisher: St. Louis : C.V. Mosby

Contributing Library: Francis A. Countway Library of Medicine

Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School

Text Appearing Before Image:

s between the wire B and C until enough gas hasbeen liberated from the salt in A to lower the vacuum in the maintube to such a degree that it will admit the current through it, whenit will light up. The vacuum may be held at this point indefinitelyif the current through the main tube is not too strong to overheatit. Very strong currents must not be forced through the auxiliarytube while lowering it, for fear of overheating and breaking theglass. Fig. 64 is a type of high-frequency tube intended only for thetransformer or high-frequency x-ray apparatus as seen in the port- 102 PRACTICAL ELECTRO-THERAPEUTICS AND X-RAY THERAPY able x-ray coils shown in Fig. 58. These tubes are generallystrongly built, and are all of the automatic regulating variety.It must not be forgotten that they are the only tubes that can beused with these portable coils for x-ray work. The coil tube comes in for a large share of our consideration, forupon it depends our success or failure in skiagraphic work. These

Text Appearing After Image:

Fig. 64.—Modern self-regulating x-ray tube. For use with high-frequency transformer like the portable x-ray coil. tubes are heavier and stronger than the static tubes, and will standmany times the amount of current without overheating or punc-turing. Fig. 65 represents an excellent type of coil tube. It will benoticed that the target (anode) is very strongly and heavily built.It is said by the makers that this target is a heavy piece of copper,faced with a metallic alloy that will stand double the heat of plat-inum. This is again surfaced with a thin (.001-inch) plate of plat-inum-vidium. With strong currents the author has been able to

practical electro therapeutics and x ray therapy 1912 book illustrations medicine medical illustrations medical history history of technology electric power electricity x ray x ray apparatus surgery medical therapy electrotherapeutics dentistry images from internet archive

1912

Open Knowledge Commons and Harvard Medical School

http://commons.wikimedia.org/

public domain