LT5431B - Device for treatment of knee joint - Google Patents

Abstract

The invention relates to medical equipment. Device for treatment of join knee includes parts of supporting pad, which comprise a haunch part (1) and a shin part (2) detachable connected to sticks (4) with offsets. Ends of stick (4) among themselvesare joined at a joint knee by hinge (5). Distraction mechanism (6) for traction of knee is arranged at a knee joint in stick (4), which is connected to haunch part (1). Mechanical and hydraulic flexion mechanisms (8) join sticks (4) in sides of legsand can be used for extension and flexion process.

Description

FIELD OF INVENTION

The invention relates to the medical field and relates to special mechanotherapy apparatus and devices for the restoration of the amplitude of motion in the joints, the strengthening of the muscular strength, and especially the apparatus for the treatment of the knee joint. The device is intended to be called ARTRAX-G.

TECHNICAL LEVEL

From the variety of mechanotherapy apparatus and devices, technical solutions closer to the present invention are described in the patent literature. An apparatus for joint stabilization is described in International Application Publication No. WO 99/47084. The device described consists of two guides which are mounted on the lower leg and thigh respectively, and a movable mechanism which connects the guides. Another known bone fixer and joint load adjusting device comprises locking blocks mounted on individual bones, joining said blocks (US patent application 2005/0261680). This device is used to regulate the articular cartilage environment during treatment. US patent application 2004/0158184 describes an orthopedic mandrel consisting of three fixation bases, which are fastened to a flexible elongated support member. This splint can be used for therapeutic limb stretching.

Also mentioned here are other modern knee joint fixation bases and only plastic or neoprene constructions with various size adhesive tapes. This is not enough for good fixation of the device to the limb, the anatomical features of the limb are not utilized, in each case the production of the device needs to be individualized.

THE SUBSTANCE OF THE INVENTION

The new machine is designed to treat a variety of conditions in the knee joint: knee arthrosis (gonarthrosis), at any stage; knee joint contractures; knee joint injuries (partial meniscus, ligament fractures); immobilization of the knee joint; the correction of genu valgus and genu varus.

The novelty of the apparatus for treating the knee joint is that the support mat consists of a thigh cuff and a calf cuff, which are detached with four rods having recesses, and the ends of the rods in the knee joint are interconnected by a rod attached to the thigh cuff two mechanical or hydraulic distraction mechanisms mounted on the joint to execute the joint traction. The traction in this machine is oriented to the articular space, but small but accurate, unlike other tensile structures that are designed to repair bone fractures.

Each cuff can be made up of two parts, the inner surface of the cuff can be self-adhesive and has the properties of a "double patch", and the cuffs can be pneumatic. In this way, the fixation of the apparatus is newly solved. Most modern knee braces are fixed on plastic or neoprene structures with various sizes of adhesive tape. This is not enough for good fixation of the device to the limb, the anatomical features of the limb are not utilized, in each case the production of the device needs to be individualized. Artrax-G does not have these disadvantages. It has three levels of locking: in addition to the usual cuff locking, the machine has two new mechanisms:

- pneumatic cuffs, which allow the appliance to fit snugly against the body and take advantage of its anatomical features. In addition, the cuff gives the device a wider application for patients of different body constitution;

- The self-adhesive, dual-patch inner surface of the cuff allows the device to fit snugly onto the skin.

The novelty of the apparatus is that each part of the cuff is separately connected to the bar by its outer surface, and the end of the bar of each leg cuff is pivotally connected to the end of the bar of the respective shin cuff; mechanical or hydraulic flexural (flexural) mechanisms for extension and flexion. And, unlike other machines, the additional mechanism makes it not fixed but variable, depending on the degree of joint contracture.

BRIEF DESCRIPTION OF THE DRAWING The drawing is a schematic representation of the apparatus.

The apparatus consists of two cuffs 1 and 2: the thigh and the lower leg. Made of durable fabric.

The cuff 1 or 2 is made up of two parts which, when applied to the foot, overlap and engage with each other on a sticky surface. Inside each cuff 1, 2 is a rubber chamber that is inflated with a sufficient amount of air to ensure a good fit of the cuff 1.2 to the body. The inflated air volume is controlled by a pressure gauge and a built-in valve 3. In addition, a skin-adhesive inner surface is used to fix each cuff 1, 2. The outer part of the cuff 1, 2 has strong pockets for the metal side bars 4 of the apparatus.

The bars 4 forming the base of the metal frame are four. They are made of steel. Two or three branches of each rod are evenly distributed on the force-acting limb surface. In the area of the knee joint, the medial and lateral rods 4 are joined by steel pivots 5, which allow for flexion of the leg or forced limb flexion or extension in certain cases (e.g., contractures). At the end of the bar 4, which engages with the pivot 5, there is a distraction mechanism 6 which stretches the limb through the knee joint and achieves the required joint space. Both hinges 5 are supported by a steel hemispherical antepatellar plate 7 in the anterior portion of the knee joint, the size of which can be adjusted depending on the size of the knee joint. At the peripheral ends of the apparatus, the inner and outer rods 4 of each side are joined by a bending (flexing) mechanism 8, the purpose of which is to force the limb to bend through the knee joint.

APPLICATION OF THE APPLIANCE

On the raised limb, measure the size of each cuff 1, 2, and cuff

1, 2 are fixed on their posterior surfaces so that the pockets of the steel bars 3 are exactly on the sides of the limb. The femoral (upper) cuff 1 with the full metal mechanism inserted is fixed to the thigh by sticking surfaces. The flexible hinges 5 and their attachment bracket 7 must correspond to the projection of the knee joint. The lower (tibial) cuff 2 is applied from below to the metal frame rods 4 and secured to the calf by sticky surfaces.

The operation of the shackle mechanisms shall be checked and, if necessary, the whole apparatus shall be corrected on the limb. A hand pump is used to deliver the required amount of air to the cells of the cuffs 1, 2. The valve is closed. Machine lock complete. It's ready for work.

The distraction mechanism 6 extends the limb through the knee joint to the required space between the shin and the thigh. This is achieved by flexing the limb several times after each stroke. During the procedure, the limb blood flow and possible sensory disturbances should be the main focus. When they occur, the pressure in the cuffs 1, 2 is reduced, which is usually individual depending on the patient's constitution, skin and subcutaneous condition, blood pressure and other factors. At the end of the procedure the vented cuffs 1, 2 are vented, the machine is removed and cleaned.

Without interfering with the function of the knee joint, this machine allows you to adjust the size of the joint space, the amplitude of 5 movements, while allowing the patient to remain active. This machine is primarily intended for the treatment of degenerative diseases, but it can also be used for some injuries: immobilization, treatment or rehabilitation.

Advantages of the device:

- portable and compact,

- can be used in a healthcare setting and at home,

- does not restrict the patient's movements and activities during the procedure.

Indications for use of the apparatus are as follows: arthrosis of the knee of any stage 15 (gonarthrosis); knee joint contractures; knee injuries (partial meniscus ligament cracks); immobilization of the knee joint; the correction of genu valgus and genu varus.

Contraindications to the use of the apparatus include: soft tissue dystrophy; trophic ulcers; pronounced lower extremity atherosclerosis; superficial and deep vein disorders (thrombosis, thrombophlebitis); MTS in bone; osteoporosis.

Claims (5)

DEFINITION OF INVENTION 1. An apparatus for treating the knee joint comprising parts of a support mat connected to the rods, 5, characterized in that the part of the support mat consists of a thigh cuff (1) and a calf cuff (1) 2), detachably connected to the rods (4), the ends of the rods (4) being articulated in the articulation (5), and a mechanical or hydraulic distraction mechanism (6) is mounted in the rod joint (1) at the knee joint. . Apparatus according to claim 1, characterized in that each cuff (1, 2) consists of two parts, the inner surface of the cuff is self-adhesive and has the properties of a "double patch", and the cuff (1,2) is pneumatic. Apparatus according to claim 1, characterized in that the rod (4) is connected to the cuff (1, 2). The end 15 has at least two branches. 4. Apparatus according to claims 1-3, characterized in that each part of the cuff (1, 2) is detachably connected to its outer surface by a rod (4), and the end of each part of the rod (4) of the thigh cuff (1) is hinged (5). with shin cuffs (2) 20 at the end of the rod (4) of the respective part. 5. Apparatus according to claim 4, characterized in that the two pivots (5) are connected by an antepatellar plate (7). 6. Apparatus according to claims 1-5, characterized in that the rods (4) are connected by a mechanical or hydraulic flexing mechanism (8).