. A treatise on artificial limbs with rubber hands and feet ... rt is an ordinary shoe, into which the natural foot was placed. Thelower part consisted of a rubber foot, securely attached to the uppershoe. Although the ladys affected leg was six inches shorter than 160 A. A. MAEKC, ABTLFICIAL LIMBS, NEW YOEK CITY. the natural leg, she had sufficient power in her ankle-joint to be ableto oppose all strains that might come upon her ankle. Resections of the knee-joints or bones of the leg necessitate apparatusof the type illustrated in Cut No. 809. The sockets above and belowthe knee sufficiently
. A treatise on artificial limbs with rubber hands and feet ... rt is an ordinary shoe, into which the natural foot was placed. Thelower part consisted of a rubber foot, securely attached to the uppershoe. Although the ladys affected leg was six inches shorter than 160 A. A. MAEKC, ABTLFICIAL LIMBS, NEW YOEK CITY. the natural leg, she had sufficient power in her ankle-joint to be ableto oppose all strains that might come upon her ankle. Resections of the knee-joints or bones of the leg necessitate apparatusof the type illustrated in Cut No. 809. The sockets above and belowthe knee sufficiently hold and support the parts, so that safe and pain-less walking can be indulged in. Apparatus of this kind are alsoused for weakened knees, broken patellas, or paralyzed knee muscles,and by modifications they can be adapted to a great variety of leg weak-nesses. It is occasionally found desirable to put automatic knee-locksin the joints, and extensor elastic springs in front or flexor elasticsprings at the rear. The knee-locks obtain rigidity when standing or. No. 808. No. 809. No. 810. walking, and by moving a slide the knee can be unlocked and per-mitted to flex for sitting convenience. Cut No. 810 represents a shortened leg with limited motion in theknee, the knee capable of flexion, but incapable of extension beyondthe angle represented in the cut; hip normal, and bottom of footcapable of en during pressure. Cut No. 811 represents a leg extension suitable for the case. Thisextension is made with a wooden socket, fitted to receive the leg. Acomfortable shelf is provided for the foot to rest upon. Knee-joints,with prawl and rack and thigh piece that encase the thigh, are alsoprovided. Tbe prawls at the knee-joints are operated by levers whichpass up the back portion of the thigh. When standing or walking,and the leg is brought to the point of greatest extension, the prawl willdrop into the rack and make the leg immovable at the knee. Themoment the wearer is seated, the lever
Size: 1842px × 1356px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookidtreatiseonar, bookyear1901
