Interstate medical journal . d thethongs attached to the arm till the patient is almost suspended. The operator is pulling the head of the humerus outwards by meansof a fillet, while an assistant is pressing down the shoulders of thepatient. Fig. 26 shows the reduction of the ulna at the elbow, and Fig. 27 thereduction of both bones dislocated together. Fig. 28 shows the reduc- Fig. 31. Glossocomum of Nymphodorus. Two views, one showing it closedand ready for use, the other with the lid removed, to show the principle. Acrank drives a shaft with a worm thread on it. The threads of the worm enga
Interstate medical journal . d thethongs attached to the arm till the patient is almost suspended. The operator is pulling the head of the humerus outwards by meansof a fillet, while an assistant is pressing down the shoulders of thepatient. Fig. 26 shows the reduction of the ulna at the elbow, and Fig. 27 thereduction of both bones dislocated together. Fig. 28 shows the reduc- Fig. 31. Glossocomum of Nymphodorus. Two views, one showing it closedand ready for use, the other with the lid removed, to show the principle. Acrank drives a shaft with a worm thread on it. The threads of the worm engagein notches in a drum. Ropes pass from the axle on which the cogged wheel drumis carried, to drums carried on a second axle. Below are parts of the machineshowing its structure and also the method of fixing the rope ends. After , one turn OF axle only moves the cogged wheel one notch—great powertherefore varying with length of crank. Power still further increased by loweraxle being smaller than drums of ratio of diameter of axle to length of crank Fig. 33. Sucussion on a ladder for disloca- in this figure. But if the lower drums tion of the spine. The patient is bound to the were made smaller than upper as in Fig. ladder by the lower part of the body, the upper 31, power would be further augmented hanging free. The ladder is raised by the pulleys accordingly. and suddenly allowed to drop. MILNE: ANCIENT SURGICAL APPARATUS 139 tion of the shoulder. The ladder is placed horizontally in this case, theends being supported on a pile of wood or stone blocks. The patient is bound on the ladder, and while extension is made on thearm, the head of the humerus is pulled outwards by a thong passed in-side it. Fig. 29 shows the reduction of the wrist, extension and counterexten-sion are made by thongs affixed below and above the wrist by clove-hitches ; while Fig. 30 shows the reduction of the ankle on similar prin-ciples. (In the case of the wrist the ladder is shown
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