Patent RU-2708841-C1 (RU)
Title: Whole leg-length orthopedic device
Inventor: NOVIKOV VLADIMIR IVANOVICH
IPC: A61F5/01
Filed: 2018-07-20
Granted: 2019-12-11
Abstract: FIELD: medicine. 
     SUBSTANCE: invention relates to medicine. Full-length orthopaedic apparatus for correction of locomotor functions of lower extremities in patients with flaccid, spastic paralyzes, paresis of muscles of lower extremities of different severity, prevalence consists of corset for body, thigh sleeves, shin and foot, elements of sleeves fixation on extremity, knee and ankle hinge joints, hip joint assembly and dynamic bend attachment. Dynamic knee fixation is made in the form of cup-like element with softening inner gel-like layer and with elastic tie-rods installed on sleeves of hip and shin. Corset on the side surface is made with a horizontal plate bent along the circumference, which has holes for attachment to it, external vertical teeth and two parallel horizontal grooves. Hip joint assembly consists of upper and lower frames, intermediate link, screw with head, flange bushing-axis with internal threaded hole for screw, axis, parallel rotary rods, connected to each other by movable adjustable tie rod, which can be moved along rods, changing rotation value lower extremity. One ends of the rods are connected to the lower part of the lower frame by means of fasteners, and other ends have an end plug rigidly installed in the slot made on the side upper end of the hip sleeve. Upper end of the upper frame is made in the form of a plate bent in a circle, with internal vertical teeth and holes, in which screws are installed, for connection of the upper end of the upper frame with the corset plate. Screws enter the corset plate horizontal slots. Lower end of upper frame has hole for part of flange bushing-axis with smaller diameter. Upper end of intermediate link has stepped hole, starting from side far from human body, there is a first section with smooth surface for screw head, second section with thread for body of screw, third section with smooth surface for part of flange bushing-axis with smaller diameter and the fourth one - with smooth surface for flange bushing-axis. There is a slot for the lower end of the upper frame, which crosses the third section of the stepped hole from top to bottom. Lower end of the intermediate link has lugs on each side with holes for said axis. Distance between said lugs is arranged to accommodate upper part of lower frame. Lower end of intermediate link has thrust platform. Upper end of lower frame is installed on said axis and has thrust screw with spring installed on thrust screw between lower frame and thrust pad, contacting thrust site of lower end of intermediate link and providing movement of lower frame relative to top frame. Sleeves of foot, shin, hip and corset are made of composite material with areas of different stiffness, wherein front surfaces of sleeves are softer than rear surfaces, and foot shell in front area is made flat with reinforcing layers of fabric based on synthetic fibers, laid in the form of spring. Femoral sleeve along upper contour is reinforced with additional layers of reinforcing materials. Frames of knee and ankle hinges are rigidly installed in slots made in lower lateral butt ends of hip sleeve and shin and upper lateral ends of sleeves of shin and foot. 
     EFFECT: invention provides correction of locomotor functions of lower extremities in patients with sluggish, spastic paralysis of various severity, prevalence, paresis of muscles of lower extremities, has corrective controlled action in sagittal, frontal and horizontal planes in symbiosis with expansion of indications for use, provision of energy recovery, improved reliability of scales, reduced weight, improved strength and reliability of fasteners and apparatus as a whole, improved conditions of use and unloading of extremity, fabrication of sleeves from composite material with sections of various stiffness. 
     1 cl, 4 ex, 5 dwg