US20100199524A1 - Shoe for medical applications - Google Patents
Shoe for medical applications Download PDFInfo
- Publication number
- US20100199524A1 US20100199524A1 US12/668,176 US66817609A US2010199524A1 US 20100199524 A1 US20100199524 A1 US 20100199524A1 US 66817609 A US66817609 A US 66817609A US 2010199524 A1 US2010199524 A1 US 2010199524A1
- Authority
- US
- United States
- Prior art keywords
- base body
- permanent magnet
- shoe
- shoe according
- sole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
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Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
- A43B13/18—Resilient soles
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B1/00—Footwear characterised by the material
- A43B1/0054—Footwear characterised by the material provided with magnets, magnetic parts or magnetic substances
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
- A43B17/14—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined made of sponge, rubber, or plastic materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/12—Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress
- G01L1/122—Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress by using permanent magnets
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/14—Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Magnetic Treatment Devices (AREA)
Abstract
A shoe with a permanent magnet including a basic body having a magnetic North Pole and a magnetic South Pole and being elastically deformable solves the problem of realizing a shoe which is able to provide its wearer with information about the material properties and the condition of the shoe.
Description
- This claims the benefit of DE 10 2007 032 821.6 filed on Jul. 12, 2007, through PCT/EP2008/005238 filed on Jun. 27, 2008, both are hereby incorporated by reference herein. The invention relates to a shoe for medical applications as well as to an insole for a shoe.
- Diabetics, in particular, suffer from circulation problems and are especially sensitive to pressure on the skin. Such pressure loads cause pressure sores on the body that can become infected and lead to ulceration.
- Shoes known from the state of the art often make use of foams. These foams become compacted over the course of time and thus cannot provide their full springy and cushioning effect. This results in areas in the shoes that can no longer provide springiness and cushioning. This can lead to pressure loads on the feet of the wearer.
- Especially diabetics, whose feet easily develop ulceration, suffer the effects of these pressure loads.
- Therefore, the invention is based on an objective of creating a shoe that can provide its wearer with information about the material properties and the condition of the shoe.
- The invention provides a shoe with a permanent magnet, whereby said permanent magnet may include a base body having a magnetic north pole and a magnetic south pole, and whereby the base body can be elastically deformed; an insole with a permanent magnet, whereby said permanent magnet may include a base body having a magnetic north pole and a magnetic south pole, and whereby the base body can be elastically deformed.
- Accordingly, a shoe or an insole comprises a permanent magnet that, whereby said permanent magnet comprises a base body having a magnetic north pole and a magnetic south pole, whereby the base body can be elastically deformed.
- According to the invention, it has been recognized that an elastic permanent magnet makes it possible to generate signals that provide information about the deformation state and the elasticity properties of the permanent magnet. In quite concrete terms, it has been realized that an elastic permanent magnet can be combined with a sensor that provides the wearer of the shoe with information as to whether individual areas of the elastic permanent magnet or of its base body have become severely compacted. Such compacted areas can no longer provide their full springiness and cushioning effect and can then cause pressure sores on the feet of the wearer. Diabetics, in particular, because of their disease, do not early enough notice pain and ulcerations caused by pressure sores. Through the sensor that interacts with the permanent magnet, warning signals can be given to the wearer of the shoe, especially a diabetic person, indicating that the shoe or its sole has to be replaced. Consequently, the above-mentioned objective is achieved.
- The use of an elastic permanent magnet for the production of a shoe for medical applications opens up the possibility of manufacturing shoes that are especially beneficial to health.
- The permanent magnet could be positioned in the sole of the shoe. Through this concrete embodiment, the shoe can be repaired without any problem. The sole can be replaced if the shoe is worn down or has become compacted to such an extent that it can no longer provide any cushioning effect. The shoe uppers can be used again.
- It is also conceivable for the elastic permanent magnet to be an integral part of the insole of the shoe. In this case as well, if the insole is worn down, it could be replaced and the shoe could continue to be used.
- The permanent magnet could be positioned in the shoe in the area of the heel and/or in the area of the ball of the foot. The heel and ball areas of the foot are subject to severe pressure loads. This is why the heel and ball areas of the foot have to be especially well-cushioned. The positioning of the permanent magnet in the heel area and/or in the ball area allows monitoring of the especially critical spots of a shoe.
- The base body could be made of a foam throughout which magnetically hard particles are distributed. The use of foam is especially advantageous since a base body made of foam can be elastically and reversibly deformed without any problem when pressure is applied.
- Before this backdrop, it is conceivable for the foams used to be either elastomeric foams or foams made of thermoplastic elastomers or a mixture of both of these. As set forth in this application, the term elastomeric foams refers to foamed plastics that exhibit rubber-elastic behavior. These can be chemically or physically loosely crosslinked polymers that behave energy-elastically below their glass transition temperature and that are rubbery-elastic at temperatures above their glass transition temperature. The glass transition temperatures of the preferably used elastomers are 20° C. [68° F.] or less. Preferably, the employed elastomeric foams are rubbery-elastic up to their melting or decomposition temperature.
- Preferably used elastomers are SBR (polystyrene butadiene rubber), NBR (nitrile-butadiene rubber), EPM (ethylene-propylene rubber), EPDM (ethylene-propylene-diene rubber), EVA (ethyl vinyl acetate), CSM (chlorosulfonyl-polyethylene rubber), VSi (silicon rubber) or AEM (ethylene-acrylate rubber) all of which can be readily processed employing molding techniques.
- Preferably used thermoplastic elastomers are thermoplastic polyesters, thermoplastic polyamides, non-crosslinked thermoplastic polyolefins, partially crosslinked thermoplastic polyolefins, thermoplastic styrene polymers and especially thermoplastic polyurethanes. These materials can be readily processed employing foaming techniques.
- The foams can have any desired pore size. Open-cell or closed-cell foams can be used. In the case of open-cell foams, at least some of the individual pores are in contact with each other. In the case of closed-cell foams, the pores are all isolated from each other in the polymer matrix. Typical pore sizes are in the range from 10 μm to 3 mm.
- Through the use of magnetically hard particles, it is advantageously ensured that, after a base body is magnetized, it acquires permanent magnetization. Completely in contrast to magnetically soft particles, which very easily lose their magnetization, the magnetically hard particles retain their magnetization. In concrete terms, the elementary magnets are permanently oriented and thus form permanent north and south poles.
- The base bodies could consist of a foam made of ethyl vinyl acetate. A foam made of this material has proven to be especially suitable for holding magnetically hard particles in a homogeneous distribution. Moreover, individual foam layers of ethyl vinyl acetate can be easily joined together by means of vulcanization or adhesion.
- In order to make a sole for a shoe, three foam layers of different hardness levels could be joined together by means of vulcanization or adhesion. The foam layer facing the floor could be the hardest foam layer in order to give the sole sufficient stability.
- SrFeO particles (strontium ferrite particles) could be distributed throughout the base body. This material exhibits permanent magnetization and is thus especially well-suited for the production of a permanent magnet.
- Before this backdrop, it is also conceivable for NdFeB particles (neodymium iron boron particles) to be distributed throughout the base body. The magnetically hard particles exhibit a permanent magnetization after their elementary magnets have been oriented by an external permanent magnet or by a magnetic pulse.
- The particles could have a mean diameter of 10 nm to 500 μm. Advantageously, particles of this size do not disturb the structure of the foam matrix. The webs between the pores are hardly influenced in terms of their stability.
- Especially preferably, magnetically hard particles with a mean diameter of 0.5 μm to 5 μm could be used, since they can be dispersed in a foamable material without any problem and are distributed especially homogeneously throughout the finished foam.
- A sensor can be associated with the base body. Here, it is concretely conceivable for a base body with a cuboidal, parallelepipedal or cylindrical shape to have a sensor on one of its surfaces. If the base body is configured as the sole of a shoe, it could be wedge-shaped. The sensor can detect the change in a magnetic field or the change in a magnetic field strength that results from a deformation of the elastic base body. A Hall sensor could be used as the sensor. Hall sensors are characterized by high resolution and reliability.
- If the base body is configured as the sole of a shoe, the sensor could be embedded in the base body. With this approach, the sensor is effectively protected against environmental influences.
- Before this backdrop, it is concretely conceivable for the elastic permanent magnet that is fitted with a sensor to be used as a pressure sensor. The sensor can detect and indicate voltage values that correspond to a change in the magnetic field of the permanent magnet. The change in the magnetic field, in turn, can be correlated with a deformation of the base body by a certain distance. If the compressibility of the base body is known, a distance-tension diagram makes it possible to draw conclusions about the force or pressure with which the base body has been deformed.
- The permanent magnet described here could be produced by a method comprising the following steps:
- preparation of a homogenous mixture consisting of a foamable material and of magnetically hard particles, foaming of the material, production of a finished foam, and magnetization of the magnetically hard particles by means of an external permanent magnet or a magnetic pulse.
- With this method, permanent magnets can be made of foam in which magnetically hard particles are homogeneously distributed.
- All of the embodiments relating to the structure of the base body as well as to the sensors likewise apply to the structure of the insole .or to orthotic insoles.
- There are various ways in which to configure and refine the teaching of the present invention in an advantageous manner. Reference is hereby made, one the one hand, to the subordinate claims and, on the other hand, to the explanation below of a preferred embodiment of the invention on the basis of the drawing.
- In conjunction with the explanation of the preferred embodiment of the invention on the basis of the drawing, a general explanation is also given of preferred embodiments and refinements of the teaching.
- The drawings show the following:
-
FIG. 1 a schematic view of a permanent magnet in an unloaded state and in a state in which it is deformed as a result of pressure. -
FIG. 2 a distance-tension diagram of a pressure sensor, comprising a permanent magnet of the type described here, -
FIG. 3 a shoe in a schematic view in which the sole is configured as a permanent magnet, and -
FIG. 4 an insole made up of two different foam layers. -
FIG. 1 shows a permanent magnet comprising acylindrical base body 1. Thebase body 1 has amagnetic north pole 2 and amagnetic south pole 3. Thebase body 1 can be deformed elastically. This is schematically shown in the right-hand drawing inFIG. 1 . - The
base body 1 consists of a foam made of ethyl vinyl acetate in which magneticallyhard particles 4 of strontium ferrite (SrFeO particles) are homogeneously distributed. These particles have a mean diameter of 0.5 μm to 5 μm. Thestrontium ferrite 4 was magnetized by an external permanent magnet or by a magnetic pulse in such a way that their elementary magnets are permanently oriented. Therefore, thepermanent magnet 1 according toFIG. 1 exhibits permanent magnetization. - The
base body 1 is made of a foam that haspores 6 that are in the range from 10 μm to 3 mm. - A
sensor 5 is arranged on the circular base surface 7 of thecylindrical base body 1 according toFIG. 1 . Thesensor 5 is configured as a Hall sensor. Thesensor 5 and thebase body 1 in their entirety form a pressure sensor that can be used to detect pressures or distances ΔT. - The left-hand drawing in
FIG. 1 shows thebase body 1 in the unloaded state. In the unloaded state, thebase body 1 forms magnetic field lines having a certain spacing. When pressure is applied to thebase body 1 by a pressure (P) as shown in the right-hand drawing inFIG. 1 , the structure of the field lines, especially their density, is changed. Through the change in the field lines of the magnetic field and thus in its field strength, a voltage U is generated as the sensor signal in theHall sensor 5. The voltage U is correlated with a distance ΔT by which thebase body 1 has been compressed. - Thus, a distance ΔT can be ascertained from the detected voltage.
- If the compressibility of the foam of the
base body 1 and the distance ΔT by which thebase body 1 has been brought to a second height are known, then a compressive force that is acting on thebase body 1 can be deduced. Consequently, the elastic permanent magnet described here can be used in a pressure sensor. -
FIG. 2 shows a distance-tension diagram that was measured with aHall sensor 5 of the type Allegro A 1395. The employed elastic permanent magnet comprises abase body 1 that consists of a foam made of ethyl vinyl acetate. Magnetically hard strontium ferrite particles with mean diameters in the range from 0.5 μm to 5 μm are distributed throughout the foam. Thecylindrical base body 1 has a height of 4 mm and the base surfaces have a diameter of 6 mm. Thepoles base body 1, the magnetic field strength amounts to 5.5 mT (milliteslas). -
FIG. 2 shows that a compression of thebase body 1 by a distance ΔT that is measured in mm, is correlated with a sensor signal that is measured in mV. - The sensor signals that result when the load increases (pressure increase) as well as the sensor signals that occur when the load decreases (pressure decrease) were measured. The voltage output by the
sensor 5 in mV is proportional to the distance ΔT by which thebase body 1 is deformed or compressed in the axial direction. In this process, each voltage value is correlated with a deformation state of thebase body 1. Therefore, by ascertaining a voltage value, it is possible to draw conclusions about the degree of deformation or compression of thebase body 1. -
FIG. 3 shows a shoe, especially for diabetics, with a permanent magnet comprising abase body 1 having amagnetic north pole 2 and amagnetic south pole 3. Thebase body 1 is elastically deformable. The permanent magnet is positioned in the sole 8. Concretely speaking, thebase body 1 is configured as a sole 8. The permanent magnet is positioned in theheel area 9 as well as in theball area 10 of the foot. - The
base body 1 consists of a foam made of ethyl vinyl acetate. Magneticallyhard particles 4 configured as strontium ferrite particles are distributed throughout the foam. Theseparticles 4 have a mean diameter in the range from 0.5 μm to 5 μm. Thestrontium ferrite particles 4 were magnetized by an external permanent magnet or by a magnetic pulse in such a way that their elementary magnets are permanently oriented in thebase body 1. Therefore, the permanent magnet according toFIG. 3 exhibits permanent magnetization. Thebase body 1 is made of a foam having pores 6. The diameter of thepores 6 is in the range from 10 μm to 3 mm. - A
sensor 5 is arranged in theheel area 9 as well as in theball area 10 of the foot. In their entirety, thesensors 5 and thebase body 1 constitute a pressure sensor. By ascertaining voltage values, thesensors 5 can provide information as to whether thebase body 1 is already compacted to such an extent that it can no longer provide a cushioning effect. The voltage values supplied by thesensors 5 give the wearer of the shoe a signal as to whether thebase body 1 or the sole 8 or parts of the sole 8 are already severely deformed due to ageing or settling processes. Here, each voltage value according toFIG. 2 corresponds to a degree of deformation or compaction of thebase body 1 or of the sole 8. - The sole 8 could be made up of several elastic foam layers, whereby at least one of the foam layers is the
base body 1 of the elastic permanent magnet described here. The foam layers could be joined together by means of vulcanization. -
FIG. 4 shows an insole for a shoe that is made up of twodifferent foam layers 1 and 11. Here, the structure of thefoam layer 1 corresponds to thebase body 1 described above and is configured as an elastic permanent magnet.Hall sensors 5 are arranged in theheel area 9 as well as in theball area 10 of the foot, and these sensors can be used to monitor the deformation of the foam layers 1 and 11. - Concerning additional advantageous embodiments and refinements of the teaching according to the invention, reference is hereby made, on the one hand, to the general part of the description and, on the other hand, to the patent claims.
- Finally, it must be stated explicitly that the purely randomly selected embodiment shown here serves merely to elucidate the teaching according to the invention, but that this teaching is by no means limited to this embodiment.
Claims (13)
1-11. (canceled)
12: A shoe comprising:
a permanent magnet including an elastically deformable base body having a magnetic north pole and a magnetic south pole; and
a sensor associated with the base body for detecting a change in a magnetic field or a change in a magnetic field strength that results from a deformation of the base body.
13: The shoe according to claim 12 further comprising a sole, the permanent magnet being positioned in the sole.
14: The shoe according to claim 12 further comprising a heel, the permanent magnet being positioned in an area of the heel. and/or in the area of the ball of the foot.
15: The shoe according to claim 12 further comprising a ball area for supporting a ball of a foot, the permanent magnet being positioned in the ball area.
16: The shoe according to one of claim 12 wherein the base body is made of a foam throughout which magnetically hard particles are distributed.
17: The shoe according to claim 12 wherein the base body comprises a foam made of ethyl vinyl acetate.
18: The shoe according to claim 12 wherein the base body comprises an elastomer from the group consisting of SBR (polystyrene butadiene rubber), NBR (nitrile-butadiene rubber), EPM (ethylene-propylene rubber), EPDM (ethylene-propylene-diene rubber), EVA (ethyl vinyl acetate), CSM (chlorosulfonyl-polyethylene rubber), VSi (silicon rubber) or AEM (ethylene-acrylate rubber).
19: The shoe according to claims 12 wherein SrFeO particles are distributed throughout the base body.
20: The shoe according to claims 12 wherein NdFeB particles are distributed throughout the base body.
21: The shoe according to claims 12 wherein the sensor is embedded in the base body.
22: A shoe according to claims 12 further compring a sole, the sensor giving the wearer of the shoe a signal as to whether the base body or the sole or parts of the sole are already severely deformed due to ageing.
23: An insole comprising:
a permanent magnet including an elastically deformable base body having a magnetic north pole and a magnetic south pole; and
a sensor associated with the base body for detecting a change in a magnetic field or a change in a magnetic field strength that results from a deformation of the elastically deformable base body.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007032821.6 | 2007-07-12 | ||
DE102007032821A DE102007032821A1 (en) | 2007-07-12 | 2007-07-12 | Shoe for medical applications |
PCT/EP2008/005238 WO2009007016A1 (en) | 2007-07-12 | 2008-06-27 | Shoe for medical applications |
Publications (1)
Publication Number | Publication Date |
---|---|
US20100199524A1 true US20100199524A1 (en) | 2010-08-12 |
Family
ID=39778918
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/668,176 Abandoned US20100199524A1 (en) | 2007-07-12 | 2009-06-27 | Shoe for medical applications |
Country Status (8)
Country | Link |
---|---|
US (1) | US20100199524A1 (en) |
EP (1) | EP2166891B1 (en) |
JP (1) | JP5314681B2 (en) |
AT (1) | ATE538674T1 (en) |
CA (1) | CA2692855A1 (en) |
DE (1) | DE102007032821A1 (en) |
ES (1) | ES2379030T3 (en) |
WO (1) | WO2009007016A1 (en) |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100090691A1 (en) * | 2006-08-09 | 2010-04-15 | Sony Corporation | Detecting device and detecting method |
US20140317958A1 (en) * | 2013-04-28 | 2014-10-30 | Hongguang YANG | Silicon Rubber Healthcare Footwear Article with Silicon Rubber Insole and Its Manufacturing Method |
US20150338291A1 (en) * | 2013-01-15 | 2015-11-26 | Toyo Tire & Rubber Co., Ltd. | A sensor and a method of making the same |
US20160113349A1 (en) * | 2013-04-28 | 2016-04-28 | Hongguang YANG | Silicon Rubber Healthcare Footwear Article with Silicon Rubber Insole and Its Manufacturing Method |
WO2016092313A1 (en) * | 2014-12-10 | 2016-06-16 | Hci Viocare Technologies Ltd. | Force sensing device |
WO2016191204A1 (en) * | 2015-05-28 | 2016-12-01 | Nike, Inc. | Sole structure with electrically controllable damping element |
WO2016191190A1 (en) * | 2015-05-28 | 2016-12-01 | Nike, Inc. | Sole structure with electrically controllable damping element |
US20170013912A1 (en) * | 2014-03-07 | 2017-01-19 | Enquiring Eye GmbH | Footwear Comprising an Elastic Intermediate Sole |
US20170105476A1 (en) | 2015-10-20 | 2017-04-20 | Nike, Inc. | Footwear with Interchangeable Sole Structure Elements |
WO2017160969A1 (en) | 2016-03-15 | 2017-09-21 | Nike Innovate C.V. | Foot presence sensing using magnets in footwear |
US9968159B2 (en) | 2015-10-20 | 2018-05-15 | Nike, Inc. | Footwear with interchangeable sole structure elements |
US20200154817A1 (en) * | 2016-02-22 | 2020-05-21 | Salted Venture Co., Ltd. | Shoe |
US11026481B2 (en) | 2016-03-15 | 2021-06-08 | Nike, Inc. | Foot presence signal processing using velocity |
US11064768B2 (en) | 2016-03-15 | 2021-07-20 | Nike, Inc. | Foot presence signal processing using velocity |
US11357290B2 (en) | 2016-03-15 | 2022-06-14 | Nike, Inc. | Active footwear sensor calibration |
US20220349695A1 (en) * | 2019-06-21 | 2022-11-03 | Carnegie Mellon University | Systems and Methods for Sensing Deformation of a Magnetic Material and Fabrication Methods Thereof |
WO2023116989A1 (en) * | 2021-12-21 | 2023-06-29 | Continental Reifen Deutschland Gmbh | Shoe sole material, outsole and method for producing the shoe sole material or the outsole |
GB2621995A (en) * | 2022-08-27 | 2024-03-06 | Movmenta Ltd | Shoe degradation sensor |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009040486B3 (en) * | 2009-09-08 | 2011-04-28 | Carl Freudenberg Kg | Magnetic foam sensor |
JP6222930B2 (en) * | 2013-01-15 | 2017-11-01 | 東洋ゴム工業株式会社 | Sensor |
JP2016014637A (en) * | 2014-07-03 | 2016-01-28 | 東洋ゴム工業株式会社 | Cushion pad deformation detection system and cushion pad deformation detection system manufacturing method |
EP3904440A1 (en) * | 2016-08-22 | 2021-11-03 | S-Techs GmbH | Polymeric material comprising one or more different doping elements, use and production method |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4647918A (en) * | 1985-01-16 | 1987-03-03 | Goforth William P | Multi-event notification system for monitoring critical pressure points on persons with diminished sensation of the feet |
US6476113B1 (en) * | 2000-06-07 | 2002-11-05 | Remington Products Company | Magnetically active flexible polymers |
US6578291B2 (en) * | 2000-06-06 | 2003-06-17 | John Hirsch | Shoe wear indicator |
US6846379B1 (en) * | 1992-01-21 | 2005-01-25 | Nu-Magnetics, Inc. | Flexible magnetic insole and method of manufacture |
US7277021B2 (en) * | 2005-01-11 | 2007-10-02 | Wisconsin Alumni Research Foundation | Device and method for alerting a runner when a new pair of running shoes is needed |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5325869A (en) | 1991-12-16 | 1994-07-05 | Stokes Theodore J | Apparatus for load and displacement sensing |
JP3024287U (en) * | 1995-10-31 | 1996-05-17 | 株式会社加地 | Flexible plate magnetic material with bending recovery |
US6263592B1 (en) | 1999-06-28 | 2001-07-24 | Yi-Hsi Chen | Footwear pad |
WO2001012005A1 (en) | 1999-08-13 | 2001-02-22 | Mason Shoe Manufacturing Co. | Footwear with magnet mounted below foot |
US7188439B2 (en) * | 2003-03-10 | 2007-03-13 | Adidas International Marketing B.V. | Intelligent footwear systems |
DE202005006264U1 (en) * | 2004-06-18 | 2005-09-01 | Hartig, Albert | Magnetic field generating system for use on patient, has bar magnets embedded into left and right insoles such that magnetic field is produced close to foot pad or heel of human body |
-
2007
- 2007-07-12 DE DE102007032821A patent/DE102007032821A1/en not_active Withdrawn
-
2008
- 2008-06-27 JP JP2010515375A patent/JP5314681B2/en not_active Expired - Fee Related
- 2008-06-27 EP EP08773713A patent/EP2166891B1/en not_active Not-in-force
- 2008-06-27 AT AT08773713T patent/ATE538674T1/en active
- 2008-06-27 CA CA 2692855 patent/CA2692855A1/en not_active Abandoned
- 2008-06-27 WO PCT/EP2008/005238 patent/WO2009007016A1/en active Application Filing
- 2008-06-27 ES ES08773713T patent/ES2379030T3/en active Active
-
2009
- 2009-06-27 US US12/668,176 patent/US20100199524A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4647918A (en) * | 1985-01-16 | 1987-03-03 | Goforth William P | Multi-event notification system for monitoring critical pressure points on persons with diminished sensation of the feet |
US6846379B1 (en) * | 1992-01-21 | 2005-01-25 | Nu-Magnetics, Inc. | Flexible magnetic insole and method of manufacture |
US6578291B2 (en) * | 2000-06-06 | 2003-06-17 | John Hirsch | Shoe wear indicator |
US6476113B1 (en) * | 2000-06-07 | 2002-11-05 | Remington Products Company | Magnetically active flexible polymers |
US7277021B2 (en) * | 2005-01-11 | 2007-10-02 | Wisconsin Alumni Research Foundation | Device and method for alerting a runner when a new pair of running shoes is needed |
Cited By (46)
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---|---|---|---|---|
US8536863B2 (en) * | 2006-08-09 | 2013-09-17 | Sony Corporation | Detecting device having viscoelastic magnet |
US20100090691A1 (en) * | 2006-08-09 | 2010-04-15 | Sony Corporation | Detecting device and detecting method |
US9745436B2 (en) * | 2013-01-15 | 2017-08-29 | Toyo Tire & Rubber Co., Ltd. | Sensor and a method of making the same |
US20150338291A1 (en) * | 2013-01-15 | 2015-11-26 | Toyo Tire & Rubber Co., Ltd. | A sensor and a method of making the same |
EP2947416B1 (en) * | 2013-01-15 | 2018-07-11 | Toyo Tire & Rubber Co., Ltd. | Sensor and method for producing same |
US20140317958A1 (en) * | 2013-04-28 | 2014-10-30 | Hongguang YANG | Silicon Rubber Healthcare Footwear Article with Silicon Rubber Insole and Its Manufacturing Method |
US9226541B2 (en) * | 2013-04-28 | 2016-01-05 | Hongguang YANG | Silicon rubber healthcare footwear article with silicon rubber insole and its manufacturing method |
US20160113349A1 (en) * | 2013-04-28 | 2016-04-28 | Hongguang YANG | Silicon Rubber Healthcare Footwear Article with Silicon Rubber Insole and Its Manufacturing Method |
US10258101B2 (en) * | 2013-04-28 | 2019-04-16 | Hongguang YANG | Silicon rubber healthcare footwear article with silicon rubber insole and its manufacturing method |
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US20170013912A1 (en) * | 2014-03-07 | 2017-01-19 | Enquiring Eye GmbH | Footwear Comprising an Elastic Intermediate Sole |
WO2016092313A1 (en) * | 2014-12-10 | 2016-06-16 | Hci Viocare Technologies Ltd. | Force sensing device |
CN107003188A (en) * | 2014-12-10 | 2017-08-01 | Hci维奥卡尔技术公司 | Power sensing device further |
US9743712B2 (en) | 2015-05-28 | 2017-08-29 | Nike, Inc. | Sole structure with electrically controllable damping element |
US11382388B2 (en) | 2015-05-28 | 2022-07-12 | Nike, Inc. | Sole structure with electrically controllable damping element |
WO2016191190A1 (en) * | 2015-05-28 | 2016-12-01 | Nike, Inc. | Sole structure with electrically controllable damping element |
US10070689B2 (en) | 2015-05-28 | 2018-09-11 | Nike, Inc. | Sole structure with electrically controllable damping element |
US11083245B2 (en) | 2015-05-28 | 2021-08-10 | Nike, Inc. | Sole structure with electrically controllable damping element |
WO2016191204A1 (en) * | 2015-05-28 | 2016-12-01 | Nike, Inc. | Sole structure with electrically controllable damping element |
US9635901B1 (en) | 2015-10-20 | 2017-05-02 | Nike, Inc. | Footwear with interchangeable sole structure elements |
US20170105476A1 (en) | 2015-10-20 | 2017-04-20 | Nike, Inc. | Footwear with Interchangeable Sole Structure Elements |
US9968159B2 (en) | 2015-10-20 | 2018-05-15 | Nike, Inc. | Footwear with interchangeable sole structure elements |
US10798986B2 (en) * | 2016-02-22 | 2020-10-13 | Salted Venture Co., Ltd. | Shoe |
US20200154817A1 (en) * | 2016-02-22 | 2020-05-21 | Salted Venture Co., Ltd. | Shoe |
CN109414092A (en) * | 2016-03-15 | 2019-03-01 | 耐克创新有限合伙公司 | Foot, which is carried out, using magnet in footwear there is sensing |
US20210274888A1 (en) * | 2016-03-15 | 2021-09-09 | Nike, Inc. | Foot presence sensing using magnets in footwear |
US10477923B2 (en) | 2016-03-15 | 2019-11-19 | Nike, Inc. | Detector system for use with footwear |
US10722000B2 (en) | 2016-03-15 | 2020-07-28 | Nike, Inc. | Dynamic fit footwear |
US10758012B2 (en) | 2016-03-15 | 2020-09-01 | Nike, Inc. | Sensing device for footwear |
US10172423B2 (en) | 2016-03-15 | 2019-01-08 | Nike, Inc. | Capacitive foot presence sensing devices for footwear |
US11026481B2 (en) | 2016-03-15 | 2021-06-08 | Nike, Inc. | Foot presence signal processing using velocity |
US11044967B2 (en) | 2016-03-15 | 2021-06-29 | Nike, Inc. | Foot presence sensing using magnets in footwear |
US11064768B2 (en) | 2016-03-15 | 2021-07-20 | Nike, Inc. | Foot presence signal processing using velocity |
US11071355B2 (en) | 2016-03-15 | 2021-07-27 | Nike, Inc. | Foot presence signal processing systems and methods |
KR20180128010A (en) * | 2016-03-15 | 2018-11-30 | 나이키 이노베이트 씨.브이. | Detecting foot presence using a magnet in footwear |
EP3429410A4 (en) * | 2016-03-15 | 2020-04-08 | NIKE Innovate C.V. | Foot presence sensing using magnets in footwear |
KR102404494B1 (en) | 2016-03-15 | 2022-06-07 | 나이키 이노베이트 씨.브이. | Foot presence detection using magnets in footwear |
US11357290B2 (en) | 2016-03-15 | 2022-06-14 | Nike, Inc. | Active footwear sensor calibration |
WO2017160969A1 (en) | 2016-03-15 | 2017-09-21 | Nike Innovate C.V. | Foot presence sensing using magnets in footwear |
US11925239B2 (en) | 2016-03-15 | 2024-03-12 | Nike, Inc. | Foot presence sensing systems for active footwear |
US11889900B2 (en) | 2016-03-15 | 2024-02-06 | Nike, Inc. | Capacitive foot presence sensing for footwear |
US11766095B2 (en) | 2016-03-15 | 2023-09-26 | Nike, Inc. | Foot presence signal processing using velocity |
US11857029B2 (en) | 2016-03-15 | 2024-01-02 | Nike, Inc. | Foot presence signal processing systems and methods |
US20220349695A1 (en) * | 2019-06-21 | 2022-11-03 | Carnegie Mellon University | Systems and Methods for Sensing Deformation of a Magnetic Material and Fabrication Methods Thereof |
WO2023116989A1 (en) * | 2021-12-21 | 2023-06-29 | Continental Reifen Deutschland Gmbh | Shoe sole material, outsole and method for producing the shoe sole material or the outsole |
GB2621995A (en) * | 2022-08-27 | 2024-03-06 | Movmenta Ltd | Shoe degradation sensor |
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EP2166891A1 (en) | 2010-03-31 |
JP5314681B2 (en) | 2013-10-16 |
JP2010532690A (en) | 2010-10-14 |
WO2009007016A1 (en) | 2009-01-15 |
ES2379030T3 (en) | 2012-04-20 |
CA2692855A1 (en) | 2009-01-15 |
DE102007032821A1 (en) | 2009-01-15 |
EP2166891B1 (en) | 2011-12-28 |
ATE538674T1 (en) | 2012-01-15 |
WO2009007016A8 (en) | 2009-12-10 |
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