. Abdominal hernia : its diagnosis and treatment. ing not (|uiteso durable as those with the hard-rubber covering. The Hood truss, covered by celluloid or hard rubber,is made in infant sizes and kept by most dealers, and forms anextremely desirable truss for children wliose pelvic inches, but is not desirable in those of smallersize. The De Garmo-Hood truss (fig. 98. 99) differs from theothers in having a spring of German silver instead of steel, the MECHANICAL TREATMENT: INFANCY. 197 covering being of hard rubber. This material for springs inthis form of truss has pro
. Abdominal hernia : its diagnosis and treatment. ing not (|uiteso durable as those with the hard-rubber covering. The Hood truss, covered by celluloid or hard rubber,is made in infant sizes and kept by most dealers, and forms anextremely desirable truss for children wliose pelvic inches, but is not desirable in those of smallersize. The De Garmo-Hood truss (fig. 98. 99) differs from theothers in having a spring of German silver instead of steel, the MECHANICAL TREATMENT: INFANCY. 197 covering being of hard rubber. This material for springs inthis form of truss has proven very valuable, owing to its beingreadily shaped to form without liability of breaking, andbecause of its not having the action of compression found inthe steel spring. This truss has been extensively used in myprivate work. Manufacturers have told me that they couldnot sell it to the dealers because it was considered too light, andthis clearlv indicates how little the dealers comprehend therequirements of a proper truss for infants. Fig. Right complete oblique lieniia in boy of s years. RetaiueJ by Ue Garmo-Hood truss. The measure for selecting the size of the truss should beginjust above where the hernia is seen; that is, at the internalabdominal ring, passing around the hips midway between thecrest of the ilium and the trochanter major. This, in numberof inches, will indicate the size of the truss required. In theshaping of the spring, the diagram method, previously de-scribed, will be found of the greatest service. The diagram isused instead of the child. If a spring covered with hard rubberis used, it should be passed through the flame of a spirit lampun^il it is quite warm, and it can then be bent to the exact shape 198 ABDOMINAL HERNL\. required. As before stated, and it cannot be repeated toooften, most infant trusses, as sent out from the shops, are toostrong- in pressure, and this should be carefully guarded a light pressure is reiiuired if the lo
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