DE3200244A1

DE3200244A1 - Measuring device for plantography

Info

Publication number: DE3200244A1
Application number: DE19823200244
Authority: DE
Inventors: Peter Dr. 7800 Freiburg Pintar
Original assignee: Individual
Current assignee: Individual
Priority date: 1982-01-07
Filing date: 1982-01-07
Publication date: 1983-07-14

Abstract

A measuring device for plantography shows the dynamic loading of the sole of the foot, by means of a track into which sensors are embedded. The loads on the sensors are converted to electrical pulses and converted by an electronic device into image sequences which are preferably broken down over time. As a result, not only is the size of the contact surface of the sole of the foot shown, but also the particular loading points within this contact surface are identified. In this arrangement, these loads can be measured on the track in motion, that is to say dynamically.

Description

Messgerät für die Plantographie, Measuring device for plantography,

Das Grundprinzip des Gerätes ist, daß Abtasten der Fußkontaktflächen auf einer Laufbahn, in der Sensoren eingebaut sind.The basic principle of the device is that the foot contact surfaces are scanned on a track in which sensors are installed.

Die Testlaufbahn hat nach oben unsichtbar eingebaute Sensoren, die einem Raster von etwa 3-5 mm entsprechen, Von der Rastergrdße hangt die Zahl, der beim getreten belaste ten Sensoren ab. Die mechanische Tnformation der fSelastung wird vom Sensor in elektrische Impulse umgesetzt. Ein entsprechendes elektronisches gerät mißt die Belastung, und zerlegt die abgetasteten Impulse zeitlich so, daß von einem Schritt, d.h. einer Xbrollbewegung des lMßes voR der Ferse bis zur Zehenspitze mehrere Bilder entstehen. Diese Teilabbildungen der Fußsohle werden als zeitliche Sequenzen des Trittes vom Gerät aufgezeichnet, und auf einem Papierband dargestellt.Diese Aufzeichnung zeigt also 2 Qualitäten: Die Größe der Pußsohlenkontaktfläche, und die dem ester entsprechenden Iielastungspunkte in der Kontaktfläche.The test track has built-in sensors that are invisible to the top correspond to a grid of about 3-5 mm. The number of the depends on the grid size when the stressed sensors are stepped on. The mechanical information of the load is converted into electrical impulses by the sensor. A corresponding electronic device measures the load, and divides the sampled impulses in time so that from one step, i.e. a roll of the measurement from the heel to the tip of the toe several pictures emerge. These partial images of the sole of the foot are called temporal Sequences of the kick recorded by the device and displayed on a paper tape So the recording shows 2 qualities: The size of the foot sole contact area, and the load points corresponding to the ester in the contact area.

Mehrere zeitliche zerlegte Bilder zusammen geben das volle Bild einer Fußbelastung in der aber die volle Dynamik der Fußbewegung, sowie der l,elastung von der ferse bis zur Zehenspitze festgehalten ist, Die gewonnenen Bilder entsprechen also nicht der altbekannten in der orthopädischen Untersuchungsmethode dertPlantogrsphie, die nur die Form der Pußsohlenkontaktfläche zeigt.Several temporally decomposed images together give the full picture Foot load in the but the full dynamics of the foot movement, as well as the oil load is held from the heel to the tip of the toe, the images obtained correspond So not the well-known method of orthopedic examination of the plantophysiology, which only shows the shape of the sole contact area.

Das wesentliche dieser Meßtechnik ist die Dynamik und Druck übertragung, die mitden Üblichen Untersllchungsmethoden nicht erziehlt werden konnte.The essentials of this measuring technique are the dynamics and pressure transmission, which could not be obtained with the usual examination methods.

Claims

PATENT CLAIMS Measuring device for plantography, g e k e n n z e i There is a track in which the sensors are built in.

2. Measuring device according to claim 1, characterized in that the sensors are invisibly built into the test track.

3. Measuring device according to claim 1 or 2, characterized in that the Sensors are arranged in a grid of about 3 to 5 mm.

4. Measuring device according to one of claims 1 to 3, characterized in that that the outgoing from the foot contact surface on the track load by the Sensors can be converted into electrical impulses.

5. Measuring device according to one of claims 1 to 4, characterized in that that the sensors with an electronic device to convert the impulses into images, in particular are connected to paper tape or the like.

6. Measuring device according to one of claims 1 to 5, characterized in that that the sampled pulses can be broken down in time, so that they are from a rolling movement of the foot from the heel to the tip of the toe, several images emerge that appear as temporal Sequence of the step can be displayed.