. X-ray observations for foreign bodies and their localisation . found, the point of maximum vibrationis located with one finger, and the skin at this point markedto save time in relocating at the operation. A simple woodentable is preferable, to avoid the disturbance of the magneticfield which is caused by one of iron, and the limb should beso placed that muscles are relaxed and flaccid, so as to imposeas little resistance to the pulsation as possible. At the operation the vibrator should be provided with asterile cover. The surgeon should confirm the previouslocalisation mark made, and make
. X-ray observations for foreign bodies and their localisation . found, the point of maximum vibrationis located with one finger, and the skin at this point markedto save time in relocating at the operation. A simple woodentable is preferable, to avoid the disturbance of the magneticfield which is caused by one of iron, and the limb should beso placed that muscles are relaxed and flaccid, so as to imposeas little resistance to the pulsation as possible. At the operation the vibrator should be provided with asterile cover. The surgeon should confirm the previouslocalisation mark made, and make the incision through it, if X-Ray Observations for Foreign Bodies 67 possible, progress being directed by repeated applications ofthe vibrator, the pulsation increasing as the fragment isapproached (see Illustration 47, Fig. 2). It is also useful, during an operation, in finding foreign bodieswhich have been otherwise localised, and which were toodeep to be vibrated until approached in the It is obvious that this procedure is only practicable with. Fig. I. Fig. 2. Illustration I. General Exploration. Fig. 2. Exploration of a wound. metals or alloys that will respond to the magnetic field, but,with the exception of lead, most other projectiles will respondto a greater or lesser degree. Some skill in touch will berequired to appreciate the vibration of a tiny fragment. Non-magnetisable clamps must be provided, or vessels ligaturedand instruinents removed, before bringing the vibrator into;the field of operation. It must be realised that it is only a 68 X-Ray Observations for Foreign Bodies vibrator, and will not attract and withdraw a projectile froma wound. The vibrator heats rapidly from the heavy current, and itmust be cut off frequently to allow it to cool. No individualseance should be longer than two minutes. A second form of this magnet, modified in its winding, andwith the addition of condensers, is an advantage where the
Size: 1705px × 1465px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, bookpublisherstlou, bookyear1920
