. The peninsular and independent medical journal . desideratum fully ap-preciated by the wearer. The Tendo Achillis, or heel tendon, F,perfectly imitates the natural one. It isattached to the bridge, 6^, in the thigh, andpassing down on the back side of the kneebolt, E, is firmly fastened to the heel. Itacts through the knee bolt, on a centre^when the weight is on the leg, impartingsecurity and firmness to the knee and anklejoints, thus obviating all necesssity forknee-catches. When the knee bends in tak-ing a step, this tendon vibrates from theknee bolt to the back side of the thigh,A, Fig. 2
. The peninsular and independent medical journal . desideratum fully ap-preciated by the wearer. The Tendo Achillis, or heel tendon, F,perfectly imitates the natural one. It isattached to the bridge, 6^, in the thigh, andpassing down on the back side of the kneebolt, E, is firmly fastened to the heel. Itacts through the knee bolt, on a centre^when the weight is on the leg, impartingsecurity and firmness to the knee and anklejoints, thus obviating all necesssity forknee-catches. When the knee bends in tak-ing a step, this tendon vibrates from theknee bolt to the back side of the thigh,A, Fig. 2, next page. It descends throughthe leg, so as to allow the foot to riseabove all obstructions, in flexion, and car-ries the foot down again, in extension ofthe leg for the next step, so as to take a firm support on the ball ofthe foot. Nature-like elasticity is thus attained, and all thumpingsounds are avoided. Another tendon, M, of great strength and slight elasticity, arreststhe motion of the knee, gently, in walking, thus preventing all dis-. Fig. 1. 22 The Peninsular and Independent. agreeable sound and jarring sensation, and giving requisite elasticity to^the knee. A spring, lever, and tendon, /, /, JT, combining with the kneebolt, give instant extension to the leg when it is semi-flexed to take a.,step, and admit of perfect flexion in sitting. A spring and tendons in the foot, X, if, N, impart proper and re-liable action to the ankle joint and toes. The sole of the foot is madesoft, to insure lightness and elasticity of step. The stump receives no weight on the end, and is well covered andprotected, to avoid friction and excoriation. These joints, springs, and tendons are all patented, and no modifi-cation of any part will enable a person successfully to evade the patents^which contain about twenty distinct and combined claims, eoverin^nearly the entire
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Keywords: ., bookcentury1800, bookdecade185, booksubjectmedicine, bookyear1859
