DE202017100006U1 - Shoe sole for measuring a foot temperature and shoe sole pair, as well as shoe and pair of shoes - Google Patents

Abstract

Shoe sole (101a, b) for measuring a foot temperature with a padding material (104), a foot contact surface (103) and a temperature sensor (221), wherein the temperature sensor has a distance (105) to the foot contact surface, characterized in that a heat conducting body (107) is arranged heat-conducting between the Fußkontaktfläche and the temperature sensor, so that a foot temperature is passed through the heat conducting body to the temperature sensor.

Description

The invention relates to a shoe sole for measuring a foot temperature with a cushioning material, a foot contact surface and a temperature sensor, wherein the temperature sensor has a distance from the foot contact surface and a shoe sole pair as well as a shoe and a pair of shoes.

Patients with diabetes in their severe training have no feeling in the foot known as polyneuropathy. Polyneuropathy is an expression of the death of nerve cells, which has a cause in the poor circulation of the diabetic foot.

People with this condition can not adequately perceive foot overload due to mechanical stimuli (eg pressure, cuts) and temperature stimuli. In this regard, especially the sole of the foot and the lateral areas of the foot are at risk. Permanent stimuli to the foot surface often lead to inflammation, which, if not detected in time, may result in amputation of parts or the entire foot and can severely affect the quality of life of those affected.

In sensor soles (shoe soles or insoles with sensors), temperature sensors are generally located on the bottom sole plane to prevent pressure points on the foot of the sole plate. Overlying cushioning material absorbs the foot pressure of the sole support and, due to the heat-insulating properties of the cushioning material and due to the distance of the temperature sensors to the measurement object (foot), prevents the transfer of the body heat to be measured to the temperature sensors.

To prevent this, the padding material can be provided with openings at the position of the temperature sensors. As a result, in principle, the heat transfer improves, but the air in the openings is a poor heat conductor, whereby the measurement result is falsified. Furthermore, heat energy escapes, so that the temperature measurement is falsified.

The object of the invention is to improve the prior art.

The object is achieved by a shoe sole according to claim 1. Advantageous embodiments of the shoe sole result from the corresponding subclaims.

In further aspects of the invention, the object is achieved by a shoe sole pair, a shoe and a pair of shoes.

The essence of the invention is based on optimizing the heat transfer from the foot to the temperature sensor while ensuring a high level of comfort.

Thus, by the heat-conducting body, for example, elevated temperatures at the foot, which are increased, for example, due to inflammation, be reliably and timely determined.

In particular, in the event that the heat-conducting body is designed to be flexible, this compresses due to a pressure load of the foot corresponding to the other padding material of the sole. This is ensured in particular by the fact that a core of the heat conducting body consists of the same or similar material as the rest of the sole. This also increases the wearing comfort.

• 1a eine stark schematische Schnittdarstellung eines oberen Polsterelements mit einem Wärmeleitelement im unbelasteten Zustand,
• 1b eine stark schematische Schnittdarstellung eines oberen Polsterelementes mit einem Wärmeleitelement im belasteten Zustand und
• 2 eine schematische Schnittdarstellung der Gesamtschuhsohle mit einem mittig eingebrachten Temperatursensor.

Furthermore, the invention will be explained with reference to exemplary embodiments. Show it

• 1a a highly schematic sectional view of an upper cushion element with a heat conducting element in the unloaded state,
• 1b a highly schematic sectional view of an upper cushion element with a heat conducting element in the loaded state and
• 2 a schematic sectional view of the total shoe sole with a centrally mounted temperature sensor.

An upper area of a shoe sole 101 . 101b has a foam 104 the thick 105a on. In addition, a heat conducting element 107 introduced, wherein the heat conducting element 107 a core 109 made of foam, which with an aluminum foil 111 is sheathed. In the upper part of the shoe sole 101 , b is a foot contact surface 103 arranged.

Directly below the heat-conducting element 107 a temperature sensor 221 is arranged, which is in touching contact with the aluminum foil 111 the Wärmeleitelements 107 stands.

In addition, the shoe sole 101 , b in a shoe (not shown) introduced. In addition, this shoe should be worn by a diabetic patient.

Once a load of the sole 101 b, as occurs, for example, when walking, the sole is compressed, so that a compressed shoe sole 101b with a changed vertical distance 105b is present. In addition, the heat-conducting element 107 upset, causing the aluminum foil 111 Wrinkles, because the core 109 made of foam is also compressed.

Both at rest and in the load state, heat of the foot from the point of the foot, which with the heat conduction 107 in contact is forwarded to the temperature sensor 221. Subsequently, the temperature is evaluated by means of electronics (not shown). If the temperature on the foot indicates an inflammation, medical measures can now be taken, so that no negative healing processes or even amputations are necessary.

LIST OF REFERENCE NUMBERS

101

unloaded shoe soles

101b

loaded shoe soles

103

foot contact

104

foam

105a

unloaded vertical distance

105b

loaded vertical distance

106

upper cushion element

107

thermally conductive element

108

lower upholstery element

109

core

111

aluminum foil

Claims (12)

Shoe sole (101a, b) for measuring a foot temperature with a padding material (104), a foot contact surface (103) and a temperature sensor (221), wherein the temperature sensor has a distance (105) to the foot contact surface, characterized in that a heat conducting body (107) is arranged heat-conducting between the Fußkontaktfläche and the temperature sensor, so that a foot temperature is passed through the heat conducting body to the temperature sensor. Shoe sole after Claim 1 characterized by further temperature sensors and further arranged between the Fußkontaktfläche Wärmeleitkörpern. Shoe sole according to one of the preceding claims, characterized in that the heat-conducting body or the heat-conducting body is designed to be elastic or are. Shoe sole according to one of the preceding claims, characterized in that the heat-conducting body has a core (109), in particular elastic core, and a heat-conducting sheath (111), wherein in particular the heat-conducting sheath comprises a metal and / or a metal foil. Shoe sole after Claim 4 , characterized in that the shell comprises a metal foil, in particular aluminum foil, a metallic fabric or a metallic braid. Shoe sole according to one of the preceding claims, characterized in that one of the heat-conducting body consists at least partially of the cushioning material. Shoe sole according to one of the preceding claims, characterized in that one of the heat-conducting body is configured column-shaped and has a circular, elliptical, triangular, quadrangular or polygonal base. Shoe sole according to one of the preceding claims, characterized in that the distance between one of the temperature sensors and the Fußkontaktfläche is a vertical distance. Shoe sole according to one of the preceding claims, characterized in that the shoe sole is designed as an insole. Shoe sole pair, with a left shoe sole and a right shoe sole, wherein one of the two shoe soles is a shoe sole according to one of the preceding claims. Shoe, which is a shoe sole after one of the Claims 1 to 9 having. Shoe pair, which a pair of shoe sole after Claim 10 having.

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