The Electro-Therapeutic Guide (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1907 Excerpt: ...and delays, and annoyances, due to accidental irritations, or so-called "burns" or from suits for malpractice. A careful operator will not very likely have any such trouble, especially if he takes the precaution to always warn the patient of the possible danger, but it is always best to be on the safe side. Better to be much too careful than a little too careless. The cut (p. 159) shows a good combination of a tube holder and an adjustable protecting screen, which may be used in any position. The shield is made of aluminum, which is partially opaque to the rays, with a central shield made of sheet lead, which is very opaque to the rays. In the lead a hole may be cut of any desired shape or size, for the purpose of irradiating only a limited area, while the parts in the immediate vicinity are completely protected from the more powerful rays, and the parts more remote are also protected from the weaker rays by the larger aluminum shield. The stand of a shield should be of metal, to act as a "ground" to carry off the stray static currents or streamers, which may annoy the patient and cause him to move, which would spoil the result if a radiograph was being made. MANNER OF ATTACHING X-RAY APPARATUS TO THE STATIC MACHINE What is the technique of tube connections? Disconnect or remove the jars. Ascertain the polarity of the machine. Place the X-ray tube holder in the desired position. Affix X-ray tube in tube holder, taking care that the anode will be in the same relative position as the positive pole of the machine, i. e., if the positive pole is indicated on the left hand side of the machine, then the anode of the tube should be on the left, and vice versa. Connect the heavy insulated X-ray cords to the prime conductor posts and then to the ...