WO2009089406A2 - Intelligent orthotic insole - Google Patents
Intelligent orthotic insole Download PDFInfo
- Publication number
- WO2009089406A2 WO2009089406A2 PCT/US2009/030524 US2009030524W WO2009089406A2 WO 2009089406 A2 WO2009089406 A2 WO 2009089406A2 US 2009030524 W US2009030524 W US 2009030524W WO 2009089406 A2 WO2009089406 A2 WO 2009089406A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- insole
- recited
- intelligent
- sensor pad
- pressure
- Prior art date
Links
Classifications
-
- 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
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- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B3/00—Footwear characterised by the shape or the use
- A43B3/34—Footwear characterised by the shape or the use with electrical or electronic arrangements
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- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B3/00—Footwear characterised by the shape or the use
- A43B3/34—Footwear characterised by the shape or the use with electrical or electronic arrangements
- A43B3/44—Footwear characterised by the shape or the use with electrical or electronic arrangements with sensors, e.g. for detecting contact or position
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B7/00—Footwear with health or hygienic arrangements
- A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
- A43B7/28—Adapting the inner sole or the side of the upper of the shoe to the sole of the foot
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
- A43D1/00—Foot or last measuring devices; Measuring devices for shoe parts
- A43D1/02—Foot-measuring devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/1036—Measuring load distribution, e.g. podologic studies
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
- A61B2562/0247—Pressure sensors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/04—Arrangements of multiple sensors of the same type
- A61B2562/046—Arrangements of multiple sensors of the same type in a matrix array
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
Definitions
- This invention generally relates to orthotic insoles and more particularly to an insole that dynamically produces pressure maps of an individual's foot.
- the Podollof et al . patent discloses a flexible tactile sensor for measuring foot pressure distributions by means of pressure sensitive resistive sensors.
- the Goldman patent discloses a capacitive biofeedback sensor that is integral with a shoe and includes a resilient polyurethane dielectric. The sensor can be placed in the patient's shoe, boot, ankle brace, crutch handgrip, wheel chair, etc. to provide biofeedback.
- the Fullen patent discloses a system for continually measuring the forces applied to the foot. This is a self- contained system that positions a force sensor array within the individual's shoe between the foot and the inner sole of the shoe. The system also discloses a rigid substrate that requires portions to be removed so the structure conforms to the individual's foot.
- an insole pad has a step counting device in the form of a fluid bag and fluid pressure monitor.
- the Wilssens patent discloses an apparatus and method for measuring the pressure distribution generated by a three- dimensional object for obtaining a total force applied.
- a shoe-based force sensor is interposed between the foot and the ground in the region of the shoe's sole. The sensor is resistive and has a middle layer of a resilient compressible elastomeric middle layer of insulating material which includes embedded electrically conductive metal filaments.
- the Haselhurst patent discloses an insole pressure sensor and personal annunciator used to assist in the therapeutic treatment of subjects who have difficulty walking.
- a removable insole is placed inside the shoe which proportionally senses the touch down of the limb, with the measurement being transmitted to a receiver for analysis.
- the foregoing patents are representative of a number attempts to use pressure or force sensing on the bottom of the foot. However, each seems to require a separate element to provide the pressure measurements typically without an orthotic device. The body incorporating the sensor does not provide any other function. In this prior art, some sensors are built into the shoe itself and therefore are not transferable among shoes.
- Another object of this invention is to provide an orthotic insole that maps the pressure of the foot and is adapted to process the pressure map to a final format for use. Best Mode for Carrying Out the Invention
- an intelligent orthotic insole comprises a lower portion for engaging the shoe surface and defining an orthotic surface for the individual's foot.
- a cover is substantially coextensive with the lower portion and overlies an intermediate force sensing matrix.
- the lower portion, cover and force sensing matrix are formed as an integral, removable inner sole.
- a processor receives the signals from the source sensing matrix to generate output signals corresponding to the location and magnitude of the pressure exerted by the foot. These signals can be transmitted to a remote location.
- FIG. 1 is a bottom exploded view in perspective of an orthotic constructed in accordance with this invention
- FIG. 2 is a top exploded view in perspective of the orthotic of FIG. 1 showing a lower portion, a cover and an intermediate force sensing matrix;
- FIG. 3 is a schematic view of a system incorporating this invention.
- FIGS. 4 through 6 are images of pressure maps generated by the feet of three individuals. Description of Illustrative Embodiments [0024] The above-identified U.S. Patent No. 7, 392, 559describes the construction of an orthotic insert without this invention.
- FIGS. 1 and 2 depict an intelligent orthotic insole 10 constructed in accordance with this invention with a heel post stabilizer 11 and a midfoot stabilizer 12 at a bottom layer.
- An orthotic 13 is constructed in accordance with U.S. Patent No. 7,392,559 and lies on top of the stabilizers 11 and 12.
- the insole 10 may also include a metatarsal support 14 and a forefoot post 15.
- a top cover 16 overlies the entire orthotic insole 10.
- the orthotic insert itself has some thickness in order to allow the machining to occur.
- FIGS. 1 and 2 also depict an orthotic insole 10 with an integral sensor pad 17 that is a capacitive force sensing matrix that provides information about the magnitude and position of the pressure to produce a three-dimensional pressure map.
- the sensor 17 in FIGS. 1 and 2 preferably forms a flexible tactile sensor with an embedded array of capacitive sensors.
- first and second stand-alone thin layers contain conductor traces typically orthogonal to one another and lie on opposite sides of a dielectric material.
- the thin layers can comprise conductive ink traces on polyurethane or on an ethylene vinyl acetate (EVA) material, or on silicone molded on a polyurethane, EVA or trifluoropropolcarbonate (FPCB) substrate.
- EVA ethylene vinyl acetate
- FPCB trifluoropropolcarbonate
- a first layer of conductive cloth, mesh or painted surface can be inserted or applied to a layer of thin compressible dielectric material such as EVA, silicone or polyurethane.
- a second layer on the opposite side of the dielectric material contains a circuit with electrodes where pressure or force is measured.
- the second layer of electrodes can be constructed using flexible circuit materials such as copper clad Kapton where the extraneous copper is etched away or using a conductive ink printing method on a Mylar film.
- One advantage of using the same material that is used for the insole, such as EVA, is that the baseline value of the sensor itself can be a good indication of the insole wear as foam materials such as EVA compression set over time and use. It maybe necessary to design in geometric structures or patterns in the dielectric layer of the sensor to provide room for the material to compress thus amplifying the amount of deformation between the electrodes.
- sensor elements can be placed inside the modular components and a provision to electrically connect the sensor element to the processor 21, can be achieved using a snap button or electrically conductive tape.
- a sensor array permits the construction of a sensor pad with a range of spatial resolutions. While any range up to 200 or more sensors is possible, it appears that a resolution from 3 to 20 sensors embedded in the sensor pad 17 will be sufficient.
- Conductors 20 connect the sensing matrix in the sensor pad 17 to a processor 21 for monitoring the sensor outputs and converting them into time-stamped data packets on which a dynamic pressure map is based.
- the processor 20 may be embedded in the orthotic 13.
- the conductors 20 may also extend the processor 21 externally to be clipped to the individual's shoe such as the outer edge opening or some part of the individual's body, such as around the ankle.
- an insole 10 with a sensor pad 17 and processor 20 can be included in a system 30 with a transmitter 32 and antenna 33 that wirelessly transmits the data for reception in a remote receiver system 34 that includes a receiver 35 and antenna 36.
- a processor 37 produces an output for a display 38 in response to the received signals.
- This system 30 has the advantage of allowing data to be gathered dynamically at a remote location even as the individual is exercising. Alternatively, the processor may have sufficient storage to gather the data for subsequent download on demand.
- Either a battery or motion-induced generator provides power for the processor 21 and transmitter 32.
- the power supply can comprise a vibrating magnet generator that is integral with the processor 20.
- the structure of the system of FIG. 3 provides flexibility in configuring the system and in determining the information that is transmitted.
- the transmitter 32 is Bluetooth capable
- a modern cell phone can constitute the remote receiver system 34 in FIG. 3.
- the remote receiving system could also be capable of sending emails or providing auditory and/or tactile cues.
- a simplified text message or email might include a date, an activity level and a weight trend.
- a more technical message or email might include an activity level with a comparison to prior day's events and a quantification of the weight trend over the past several days or weeks .
- Different auditory or tactile cues could provide real time feedback to the user depending on the application. For the golfer could use such feedback to indicate that his or her balance was too far forward. Feedback to a diabetic can indicate that too much pressure has been on the heel of one foot for too long. Balance-impaired individuals may benefit from an indication that one foot has made a solid contact when walking down a flight of stairs.
- An intelligent insole that wirelessly transmits performance data to a remote host can also be used as a controller for entertainment systems including video game consoles, mobile gaming devices, or mobile phones.
- entertainment systems including video game consoles, mobile gaming devices, or mobile phones.
- force cadence or balance can be used to translate user motion to virtual motion of an avatar.
- an intelligent insole such as the insole 10 shown in FIGS. 1 and 2, used in a system such as shown in FIG. 3, can produce images such as those in FIGS. 4 through 6. These are screen shots taken during dynamic activities. It is clear that the sensor is identifying the pressure magnitude and location for the foot.
- a system constructed in accordance with this invention provides an orthotic insole that maps the pressure of a foot. It is adapted to process these pressure maps into a format for transmission over a wireless network for communication with a variety of devices including cell phones and for generating email messages.
- This invention has been disclosed in terms of certain embodiments. It will be apparent that many modifications can be made to the disclosed apparatus without departing from the invention.
- a sensor pad 17 integrated with the insole could be one of several versions. Sensors other than capacitive sensors can be substituted in an insole, such as resistive sensors, provided known problems with such sensors can be tolerated. Therefore, it is the intent of the appended claims to cover all such variations and modifications as come within the true spirit and scope of this invention.
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2009204064A AU2009204064A1 (en) | 2008-01-11 | 2009-01-09 | Intelligent orthotic insole |
EP09700228A EP2234515A2 (en) | 2008-01-11 | 2009-01-09 | Intelligent orthotic insole |
CA2711904A CA2711904A1 (en) | 2008-01-11 | 2009-01-09 | Intelligent orthotic insole |
JP2010542359A JP2011509710A (en) | 2008-01-11 | 2009-01-09 | Intelligent straight insoles |
BRPI0911675A BRPI0911675A2 (en) | 2008-01-11 | 2009-01-09 | smart orthotic insole |
CN2009801061029A CN101951798A (en) | 2008-01-11 | 2009-01-09 | The end in intelligence is orthopedic |
US13/185,715 US20110275956A1 (en) | 2008-01-11 | 2011-07-19 | Intelligent Orthotic Insoles |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US2059808P | 2008-01-11 | 2008-01-11 | |
US61/020,598 | 2008-01-11 | ||
US12/350,605 | 2009-01-08 | ||
US12/350,605 US20100004566A1 (en) | 2008-01-11 | 2009-01-08 | Intelligent orthotic insoles |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2009089406A2 true WO2009089406A2 (en) | 2009-07-16 |
WO2009089406A3 WO2009089406A3 (en) | 2009-09-17 |
Family
ID=40853771
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2009/030524 WO2009089406A2 (en) | 2008-01-11 | 2009-01-09 | Intelligent orthotic insole |
Country Status (9)
Country | Link |
---|---|
US (2) | US20100004566A1 (en) |
EP (1) | EP2234515A2 (en) |
JP (1) | JP2011509710A (en) |
KR (1) | KR20100123827A (en) |
CN (1) | CN101951798A (en) |
AU (1) | AU2009204064A1 (en) |
BR (1) | BRPI0911675A2 (en) |
CA (1) | CA2711904A1 (en) |
WO (1) | WO2009089406A2 (en) |
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Also Published As
Publication number | Publication date |
---|---|
CA2711904A1 (en) | 2009-07-16 |
KR20100123827A (en) | 2010-11-25 |
AU2009204064A1 (en) | 2009-07-16 |
US20110275956A1 (en) | 2011-11-10 |
BRPI0911675A2 (en) | 2019-09-24 |
US20100004566A1 (en) | 2010-01-07 |
WO2009089406A3 (en) | 2009-09-17 |
CN101951798A (en) | 2011-01-19 |
JP2011509710A (en) | 2011-03-31 |
EP2234515A2 (en) | 2010-10-06 |
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