SI23134A - Splint for measurement of active knee angle tracking - Google Patents

Abstract

The present technical problem is solved by using a splint for measurement of active knee angle tracking, featuring an assembled measuring system which combines an adaptable mechanical framework with a computer- supported sensor element for measurement of the kinesthetic sensation in the knee joint. A bearing (2) and a basic framework (3) are fastened onto a carrying plate (1). A height-adjustable framework (4), which can be fixed by a screw at a selected height, is mounted into the basic framework (3). On the adjustable framework (4), a fixed guide (5) is fastened, to which there is mounted a length-adjustable thigh splint (7) which can be fixed at a selected position by a screw. A movable guide (6) which rotates around the angle sensor (9) axis is connected with the fixed guide (5) via the angle sensor (9). A length-adjustable tibia splint (8), which can be fixed by a screw at a selected position, is mounted onto the movable guide (6). A USB cable (10) is leading off the angle sensor (9) to connect itself to a personal computer (11).

Description

A KIT FOR MEASURING ACTIVE TRACKING AS AN V

THE KNEE

The subject of the invention is a support for measuring the active tracking of the knee angle, which enables a quick, easy and accurate analysis of the kinesthetic function of the knee joint.

A technical problem is the manufacture of such a measuring device that combines a flexible mechanical framework and a computer-aided sensing element to measure kinesthetic sensation in the knee joint.

The invention makes it easy to modify the various parameters of kinesthesia, which are extremely important in medical and sports diagnostics for analyzing the functioning and modification of the mechanisms of neuromuscular regulation of movement in humans and the evaluation of the joint-neuromuscular system of the knee joint.

Innovation is the so-called support for changes in active knee angle tracking (OASK). It is a neurophysiological-biomechanical measuring device that is useful for accurate and reliable evaluation of motor control status and kinesthetic sensation in the elbow joint of either healthy people or patients in medical (orthopedics, physiotherapy, physiatry, neurology) and kinesiology. OASK allows medical and kinesiology professionals to modify and evaluate various deficits (injury, surgery, neurological disease, aging, etc.) or the effects of exercise (physiotherapy, sports, research, sports diagnostics, injury prevention, etc.).

Although various methods for analyzing kinesthetic sensing are already in use in sports and clinical practice, their use is limited, because they are often very expensive systems or extremely simplified approaches with poor metric characteristics (poor reproducibility and sensitivity of tests). Kinematic analyzes (BTS Nirvana), position sensors (Biosyn systems), and electronic gauges (Biopac Twin-axis goniometer) are often impractical, expensive, or difficult to use. On the other hand, clinical methods for evaluating kinesthetic sensation (active and passive repositioning tasks) are simple but imprecise and unrepeatable. Among other things, the added value of our innovation compared to existing systems is its ease of use and good quantification of measured parameters. Simplifying the mechanical, algorithmic and usability features of our device makes it very easy and practical to use.

The invention for which we want a patent is a support for changing the active angle tracking in the knee with computer support. A key part of the system is the electronic angle sensor, which allows very precise position changes in the knee joint and a personal computer that displays the position in the knee joint in real time. Throughout the measurement, signals are transmitted to the personal computer through which the capture, storage is performed. and subsequent signal processing.

The described innovation solves a technical problem with a manufactured measuring system that combines an adaptive mechanical framework and a computer-aided sensing element for measuring kinesthetic sensation in the knee joint. The invention will be described in the figure showing:

Figure 1: Support for changes in active knee angle tracking

The invention consists of a support plate 1 which is rectangular in shape and of such dimensions that it can be laterally supported by an adult. It can be made of different solid materials (wood, plastic, iron, plastics, etc.). At the beginning of the carrier plate, a rectangular bearing 2 is arranged longitudinally, which is made as a cushion and extends longitudinally through about two thirds of the carrier plate and is positioned in the middle of the carrier plate 1 and extends over about four fifths of the carrier plate 1. support plate 1 fastened with screws, but can also be glued.

The base plate 3, which is made of metal, is longitudinally mounted on the support plate 1 just behind the bed. The base frame is made in such a way that the bottom one has a longitudinal profile with a square shape and two vertical ones about thirty centimeters high on each side of the longitudinal frame. Both vertical profiles are hollow and of such an internal dimension that an adjustable frame 4 can be inserted into them. The adjustable frame 4 is made of metal and is shaped in such a way that two interconnected vertical profiles are inserted into the base frame 3. The adjustable frame 4 is therefore adjustable in height and fixed in the selected position by hand screws perpendicular to the vertical profiles of the base frame 3 and the vertical profiles of the adjustable frame

4.

A fixed guide 5 is attached to the adjustable frame 4, which is square in shape and the same length as the longitudinal profile of the adjustable frame 4 and is also made of metal. The fixed guide 5 and the adjustable frame are separated via a metal interface that connects them. The interface is three centimeters long, otherwise it is of the same dimensions (width and height) as the adjustable frame 4 and the fixed guide 5.

The thigh support 7, which is semi-circular in shape and made of metal, is mounted on the fixed guide. It is thirty centimeters long, but may be slightly longer or shorter (but not more than twenty percent the length previously mentioned), and may be fifteen centimeters wide, and may be slightly longer or shorter (but not more than twenty percent earlier) the widths mentioned). Below it is mounted on a fixed guide 5, which slides, so it is adjustable in the longitudinal position. In the selected position, it is secured with a hand screw * fixed from the bottom. The thigh support 7 is upholstered with neoprene padding from the inside, but may also be made of other similar materials (pillow, foam, etc.). Above it has metal loops mounted on the outside, which allow different fasteners (rubber bands, elastics, straps, etc.) to be attached as desired.

An angle sensor 9 is attached to the end of the fixed guide 5 by screws. The angle sensor acts as a pivot. On the other side of the angle sensor 9, a movable guide 6 is attached, which moves about the axis of the angle sensor 9 in a horizontal plane. The moving guide 6 is of the same dimensions and material as the fixed guide 5.

A tibia support 8 is attached to the movable guide 6, which slides on the movable guide 6 and is fixed in the selected position by a hand screw which is screwed into the tibia support 8 through the thread in the movable guide 6 from the underside and thus fixed in the selected longitudinal position. . The shin support 8 is a semicircular shape made of metal, thirty centimeters long and fifteen centimeters wide (may also be longer / shorter or narrower / wider, but not more than twenty percent of said length or width). The shin support 8 is padded with neoprene from the inside, facing upwards, but may also be made of other similar materials (cushion, foam, etc.). Above the outside, the shin support 6 has metal loops installed, which allow different attachment means (erasers, elastic bands, straps, etc.) to be attached as desired.

The angle sensor 9 is connected to a PC 11 via a USB cable 10.

Claims (5)

PATENT APPLICATIONS A static support for measuring active angle tracking in the knee joint for measuring kinesthetic sensation during bending and elongation of the knee, characterized in that it consists of a base plate (1), a bearing (2), a base frame (3), height adjustable frame (4), thigh support (7), shin support (8) and angle sensor (9). Device as claimed in claim 1, characterized in that the bearing (2) is made as a cushion. The device specified in claim no. 1, characterized in that the thigh support (7) is made of metal and is cushioned with neoprene or other similar materials such as a pillow, foam, and the like. The device specified in claim no. 1, characterized in that the base frame (3) is made of metal. The device specified in claim no. 1, characterized in that the shin support (8) is made of metal and is padded inside with neoprene or other similar materials such as a pillow, foam, and the like.