WO1995014430A1 - Method for determination of the weight of human body and device for performing the method - Google Patents

Method for determination of the weight of human body and device for performing the method Download PDF

Info

Publication number
WO1995014430A1
WO1995014430A1 PCT/EP1993/003265 EP9303265W WO9514430A1 WO 1995014430 A1 WO1995014430 A1 WO 1995014430A1 EP 9303265 W EP9303265 W EP 9303265W WO 9514430 A1 WO9514430 A1 WO 9514430A1
Authority
WO
WIPO (PCT)
Prior art keywords
foot
body weight
force
pressure
data
Prior art date
Application number
PCT/EP1993/003265
Other languages
French (fr)
Inventor
Pietro DELLA CÀ
Federico Schoellhammer
Giovanni Sessa
Original Assignee
Della Ca Pietro
Federico Schoellhammer
Giovanni Sessa
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Della Ca Pietro, Federico Schoellhammer, Giovanni Sessa filed Critical Della Ca Pietro
Priority to PCT/EP1993/003265 priority Critical patent/WO1995014430A1/en
Publication of WO1995014430A1 publication Critical patent/WO1995014430A1/en

Links

Classifications

    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B3/00Footwear characterised by the shape or the use
    • A43B3/34Footwear characterised by the shape or the use with electrical or electronic arrangements
    • A43B3/38Footwear characterised by the shape or the use with electrical or electronic arrangements with power sources
    • A43B3/42Footwear characterised by the shape or the use with electrical or electronic arrangements with power sources where power is generated by conversion of mechanical movement to electricity, e.g. by piezoelectric means
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B3/00Footwear characterised by the shape or the use
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B3/00Footwear characterised by the shape or the use
    • A43B3/34Footwear characterised by the shape or the use with electrical or electronic arrangements
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B3/00Footwear characterised by the shape or the use
    • A43B3/34Footwear characterised by the shape or the use with electrical or electronic arrangements
    • A43B3/38Footwear characterised by the shape or the use with electrical or electronic arrangements with power sources
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B3/00Footwear characterised by the shape or the use
    • A43B3/34Footwear characterised by the shape or the use with electrical or electronic arrangements
    • A43B3/44Footwear characterised by the shape or the use with electrical or electronic arrangements with sensors, e.g. for detecting contact or position
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/103Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/1036Measuring load distribution, e.g. podologic studies
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01GWEIGHING
    • G01G19/00Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/44Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing persons
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01GWEIGHING
    • G01G23/00Auxiliary devices for weighing apparatus
    • G01G23/18Indicating devices, e.g. for remote indication; Recording devices; Scales, e.g. graduated
    • G01G23/36Indicating the weight by electrical means, e.g. using photoelectric cells
    • G01G23/37Indicating the weight by electrical means, e.g. using photoelectric cells involving digital counting
    • G01G23/3728Indicating the weight by electrical means, e.g. using photoelectric cells involving digital counting with wireless means

Definitions

  • This invention relates to a method for determination of the weight of human body and a device for performing it- It can be used also for the determination of loads carried by a person by differential measurement.
  • a large variety of body weight scales are available which, however, are stationary and not designed for permanent determination of the body weight during normal walking or sporting activities.
  • the invention as claimed solves the above described problems by providing a method for determination of the weight of human body which can be performed permanently according to the actual needs.
  • Suitable sensors can be chosen from a variety of compression and tension force sensors available on the market and discussed in detail in G ⁇ nter W.Schanz, "Sensoren, Fiihler der Messtechnik", Dr.Aired Hutig VErlag, Heidelberg, 1986, in particular on pages 270 - 325.
  • the preferred piezoresistive or piezoelectric pressure transducers convert pressure exerted by the foot of the human body into an electric signal.
  • the pressure transducer is connected either by wire or wire-less to a pressure measuring and indicating apparatus.
  • This apparatus may comprise a digital voltmeter which receives the force-proportional signal from the pressure transducer.
  • the pressure transducer (one or several) are embedded in a shoe insert which can easily be inserted in and removed from the shoe. Arranging several pressure transducers over the whole area of the foot contact allows for compensation of non-uniform application of force to the supporting means of the foot.
  • the pressure transducers are then distributed in a matrix array over a suitable force measuring carpet which may have the form of a shoe insert. The electric signals derived from such a matrix array will then be supplied to an evaluation apparatus which calculates the exerted total force, transforms it into body weight of the person exerting such a force and indicates the body weight on a suitable display, e.g. a wrist watch.
  • Fig. 1 is a schematic perspective view of a device for performing the method according to the invention
  • Fig. 2 shows a block diagram of a device for performing the method according to the invention.
  • Fig. 1 shows a device 1 for performing the method according to the invention, incorporated partly in a shoe 2 and partly in a wrist watch 3 on the optical display 9 of which the body weight data are permanently displayed.
  • the pressure exerted by a persons foot 12 on the sensing means 5 in the form of a pressure sensor incorporated in the supporting means 13 (i.e. the sole) of shoe 2 is used for continuously obtaining body weight data of the person of which the body weight shall be monitored.
  • the device 1 of Fig. 1 is explained more in detail with reference to Fig. 2; it consists of an electrical power supply battery 4 connected to a piezoresistive sensor 5 which in turn is connected to a transmitter 6 which generates infrared light for transmitting the data wireless to the wrist watch 3 which contains to this effect a receiver 7, a microprocessor 8 (with a RAM and a ROM) and an optical display 9.
  • the display 9 indicates the body weight data by means of a LCD or LED arrangement.
  • a LCD or LED arrangement In case that only one sensor 5 is used in the shoe 2 there is the need of statistical processing of the data measured, in order to obtain an average of the body weight of the person wearing the shoe 2. This can be effect by the Gauss equation called exp(x 2 ).
  • an active charge amplifier 10 which functions as a signal preamplifier may be used.
  • the preamplifier may be arranged in or on the sensor 5.
  • the wireless transmitter 6 can take the form of a high-frequency transmitter, the carrier signal of which is modulated by the measurement signal (input).
  • the wireless transmitter 6 can take the form of an infrared or laser transmitter device. A digital signal transmission is particularly advantageous.
  • the digital sensor data can also be transmitted via optical waveguide cables.
  • the analog measurements signals of the sensor 5 must be converted into digital signals by means of a converter 11.
  • Various methods are sufficiently known from the state of the art. For this purpose it is of advantage to provide for serial output of the digital values of the converter 11, since a parallel output necessitates additional expense as regards transmission devices.
  • the signal preamplifier 10 and the analog/digital converter 11 are combined into a single functional unit; e.g. by using a charge/frequency converter in which the charge amount of the mechanoelectrical converter is directly converted into a frequency-proportional signal.
  • an absolute pressure sensor is used, for instance the absolute pressure sensor KPY 14 manufactured by Siemens AG, Kunststoff (Germany) .
  • This absolute pressure sensor is embedded in an elastomeric material in such a manner that there is- no essential contact of the absolute pressure sensor (when inserted in the shoe) to either the foot or the shoe sole. This results in a uniform pressure distribution and good protection of the absolute pressure sensor 5, any compensation resistors, cables and of the transmitter 6 against environmental influences in particular against penetration of gases, humidity and sweat.
  • the senor 5 is configured as a transducer diaphragm. This leads to an extremely compact and light-weight sensor 5 being in no way an obstruction when inserted in the shoes 2 of a person. It is, therefore, possible with no problem whatsoever to carry out body weight measurements on the wearer under dynamic loading conditions.

Abstract

In this method for determination of the weight of human body force or pressure exerted by the foot (12) of the human body on supporting means (13) of the foot (12) is measured by sensing means (5) incorporated in a shoe (2) generating an electric signal proportional or analog to said force or pressure. The signals are transmitted to a remote area where they are indicated in the form of body weight data on the display (9) of a wrist watch (3).

Description

METHOD FOR DETERMINATION OF THE WEIGHT OF HUMAN BODY AND DEVICE FOR PERFORMING THE METHOD
FIELD OF THE INVENTION
This invention relates to a method for determination of the weight of human body and a device for performing it- It can be used also for the determination of loads carried by a person by differential measurement.
BACKGROUND ART
A large variety of body weight scales are available which, however, are stationary and not designed for permanent determination of the body weight during normal walking or sporting activities.
Especially for diet patients it is desirable to know at any time and at any location the exact body weight in order to take decisions regarding food up-take or sporting activities. SUMMARY OF THE INVENTION
The invention as claimed solves the above described problems by providing a method for determination of the weight of human body which can be performed permanently according to the actual needs.
Suitable sensors can be chosen from a variety of compression and tension force sensors available on the market and discussed in detail in Gϋnter W.Schanz, "Sensoren, Fiihler der Messtechnik", Dr.Aired Hutig VErlag, Heidelberg, 1986, in particular on pages 270 - 325.
The preferred piezoresistive or piezoelectric pressure transducers convert pressure exerted by the foot of the human body into an electric signal. The pressure transducer is connected either by wire or wire-less to a pressure measuring and indicating apparatus. This apparatus may comprise a digital voltmeter which receives the force-proportional signal from the pressure transducer.
In a preferred embodiment of the invention the pressure transducer (one or several) are embedded in a shoe insert which can easily be inserted in and removed from the shoe. Arranging several pressure transducers over the whole area of the foot contact allows for compensation of non-uniform application of force to the supporting means of the foot. Preferably the pressure transducers are then distributed in a matrix array over a suitable force measuring carpet which may have the form of a shoe insert. The electric signals derived from such a matrix array will then be supplied to an evaluation apparatus which calculates the exerted total force, transforms it into body weight of the person exerting such a force and indicates the body weight on a suitable display, e.g. a wrist watch.
The preferred piezoresistive or piezoelectric pressure transducers may be replaced by a strain gauge connected in a Wheatstone bridge or any other appropriate pressure sensor. The various features of novelty which characterize the invention are pointed out with particularity in the claims annexed to and forming part of this disclosure. For the better understanding of the invention, its operating advantages and specific objects attained by its use, reference should be had to the accompanying drawings, examples and descriptive matter in which are illustrated and described preferred embodiments of the invention.
BRIEF DESCRIPTION OF THE DRAWINGS
In the drawings:
Fig. 1 is a schematic perspective view of a device for performing the method according to the invention; and Fig. 2 shows a block diagram of a device for performing the method according to the invention.
DETAILED DESCRIPTION OF THE INVENTION
Fig. 1 shows a device 1 for performing the method according to the invention, incorporated partly in a shoe 2 and partly in a wrist watch 3 on the optical display 9 of which the body weight data are permanently displayed. The pressure exerted by a persons foot 12 on the sensing means 5 in the form of a pressure sensor incorporated in the supporting means 13 (i.e. the sole) of shoe 2 is used for continuously obtaining body weight data of the person of which the body weight shall be monitored.
The device 1 of Fig. 1 is explained more in detail with reference to Fig. 2; it consists of an electrical power supply battery 4 connected to a piezoresistive sensor 5 which in turn is connected to a transmitter 6 which generates infrared light for transmitting the data wireless to the wrist watch 3 which contains to this effect a receiver 7, a microprocessor 8 (with a RAM and a ROM) and an optical display 9.
The display 9 indicates the body weight data by means of a LCD or LED arrangement. In case that only one sensor 5 is used in the shoe 2 there is the need of statistical processing of the data measured, in order to obtain an average of the body weight of the person wearing the shoe 2. This can be effect by the Gauss equation called exp(x2).
Instead of using wireless transmission of the data it is possible to use a cable of course.
Preferably an active charge amplifier 10 which functions as a signal preamplifier may be used. The preamplifier may be arranged in or on the sensor 5.
The wireless transmitter 6 can take the form of a high-frequency transmitter, the carrier signal of which is modulated by the measurement signal (input). In a further embodiment the wireless transmitter 6 can take the form of an infrared or laser transmitter device. A digital signal transmission is particularly advantageous.
In low power supply situations, the digital sensor data can also be transmitted via optical waveguide cables.
For digital transmission of the sensor signals the analog measurements signals of the sensor 5 must be converted into digital signals by means of a converter 11. Various methods are sufficiently known from the state of the art. For this purpose it is of advantage to provide for serial output of the digital values of the converter 11, since a parallel output necessitates additional expense as regards transmission devices. Preferably the signal preamplifier 10 and the analog/digital converter 11 are combined into a single functional unit; e.g. by using a charge/frequency converter in which the charge amount of the mechanoelectrical converter is directly converted into a frequency-proportional signal.
With the embodiment of the invention shown in Figs. 1 and 2 as a sensor 5 an absolute pressure sensor is used, for instance the absolute pressure sensor KPY 14 manufactured by Siemens AG, Munich (Germany) .This absolute pressure sensor is embedded in an elastomeric material in such a manner that there is- no essential contact of the absolute pressure sensor (when inserted in the shoe) to either the foot or the shoe sole. This results in a uniform pressure distribution and good protection of the absolute pressure sensor 5, any compensation resistors, cables and of the transmitter 6 against environmental influences in particular against penetration of gases, humidity and sweat.
In another embodiment the sensor 5 is configured as a transducer diaphragm. This leads to an extremely compact and light-weight sensor 5 being in no way an obstruction when inserted in the shoes 2 of a person. It is, therefore, possible with no problem whatsoever to carry out body weight measurements on the wearer under dynamic loading conditions. While the foregoing description and drawings represent the preferred embodiments of the present invention, it will be obvious for those skilled in the art that various changes and modifications may be made therein without departing from the true spirit and scope of the present invention.

Claims

Claims
1. Method for determination of the weight of human body, characterized in that force or pressure exerted by the foot (12) of the human body on supporting means (13) of the foot (12) is measured by sensing means (5) generating an electric signal proportional or analog to said force or pressure, said signal being transmitted to a remote area where it is indicated in the form of body weight data.
2. Method according to claim 1, characterized in that said force or pressure measurement and said body weight indication is performed in a permanent way.
3. Method according to claim 1 or 2, characterized in that said body weight data are visually displayed.
4. Method according to one of the claims 1 to 3, characterized in that said supporting means (13) of the foot (12) are shoes (2), shoe inserts or socks.
5. Method according to one of the claims 1 to 4, characterized in that said body weight data are indicated on a wrist-watch (3) , bracelet, magnetic card, credit-card or hand-held receiver.
6. Method according to one of the claims 1 to 5, characterized in that said sensing means (5) is a sensor responsive to static and dynamic compression and tension, preferably a piezoresistive or piezoelectric sensor.
7. Method according to one of the claims 1 to 6, characterized in that said signal is transformed to body weight data in the foot area and subsequently transmitted to the remote area for indication.
8. Method according to one of the claims 1 to 6, characterized in that said signal is first transmitted to the remote area and subsequently transformed to body weight data in said remote area for indication.
9. Method according to one of the claims 1 to 8, characterized in that transmission of said signal is performed electrically, electromagnetically or optically.
10. Method according to one of the claims 1 to 9, characterized in that additionally to the foot force or pressure other body data, preferably body temperature, blood pressure or number of foot steps, are measured and indicated in said remote area.
11. Method according to one of the claims 1 to 10, characterized in that said body data are stored in a memory and used for comparative purposes and for elaborating statistic data.
12. Method according to one of the claims 1 to 11, characterized in that said force or pressure measurement and said body weight indication is calculated from a statistical function, for the average of the body weight, called Gauss equation by terms of y = exp(x2) .
13. Device for performing the method according to one of the claims 1 - 12, characterized by force or pressure sensing means (5) located at supporting means (13) of the foot (12), pressure data transmitting means (6) and indicating means (9) at a remote area.
14. Device according to claim 13 characterized in that it comprises a microchip or microprocessor (8) for storing, transforming, handling, comparing and indicating the signals generated by said force or pressure sensing means (5) .
15. Device according to claim 13 or 14, characterized in that the sensing means (5) comprise a plurality of sensors distributed at different locations of the supporting means (13) of the foot (12).
16. Device according to one of the claims 13 to 15, characterized in that the sensing means (5) are arranged or embedded in a shoe insert.
PCT/EP1993/003265 1993-11-22 1993-11-22 Method for determination of the weight of human body and device for performing the method WO1995014430A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP1993/003265 WO1995014430A1 (en) 1993-11-22 1993-11-22 Method for determination of the weight of human body and device for performing the method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP1993/003265 WO1995014430A1 (en) 1993-11-22 1993-11-22 Method for determination of the weight of human body and device for performing the method

Publications (1)

Publication Number Publication Date
WO1995014430A1 true WO1995014430A1 (en) 1995-06-01

Family

ID=8165795

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1993/003265 WO1995014430A1 (en) 1993-11-22 1993-11-22 Method for determination of the weight of human body and device for performing the method

Country Status (1)

Country Link
WO (1) WO1995014430A1 (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19533212A1 (en) * 1995-09-08 1997-03-13 Hans Hermann Dr Rer N Schreier Therapeutic protection equipment against overload
EP0916931A1 (en) * 1997-11-06 1999-05-19 Tien-Tsai Huang Insole pad having step-counting device
KR100398822B1 (en) * 2001-06-13 2003-09-19 주식회사 마인드스윙 Load Data Transmitter for Use in System for Measuring Distribution of Dynamic Load in Athletic Sports
WO2003087730A1 (en) * 2002-04-10 2003-10-23 Siemens Aktiengesellschaft System and method for generating signals
NL2000197C2 (en) * 2006-08-24 2008-02-26 Sportmarketing Consultancy B V System for measuring weight reduction, an inlay body with force sensor, a shoe and a portable control device.
KR101124292B1 (en) * 2009-05-13 2012-03-27 신동석 Apparatus for body weight scale of shoe type
US9267793B2 (en) 2000-12-15 2016-02-23 Tvipr, Llc Movement monitoring device for attachment to equipment
WO2016196349A1 (en) * 2015-05-29 2016-12-08 Nike Innovate C.V. Wearable article with a kinetic energy generator
US9521964B2 (en) 2011-12-23 2016-12-20 Industrial Technology Research Institute System and method for estimating the mechanical behavior of human lower limbs
US9643091B2 (en) 2000-12-15 2017-05-09 Apple Inc. Personal items network, and associated methods
US9677928B2 (en) 2015-04-26 2017-06-13 Samuel Lightstone Method, device and system for fitness tracking
EP3219257A1 (en) * 2016-03-18 2017-09-20 Bromm, Boris Device for measuring a pressure force
CN107242635A (en) * 2013-05-24 2017-10-13 姬志刚 A kind of multifunctional sport shoe
CN112006662A (en) * 2020-08-31 2020-12-01 东华大学 System for real-time monitoring weight and analyzing water loss parameters during exercise

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989001760A1 (en) * 1987-09-02 1989-03-09 Nyberg Karl Erik Indicating device for indicating the set-down force of the feet of humans or animals
DE3732891A1 (en) * 1987-09-30 1989-04-20 Tetron Developments Ges Fuer I Shoe with measurement device
WO1990000031A1 (en) * 1988-07-01 1990-01-11 Effner Gmbh Transducer for measurement of vertical foot forces

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989001760A1 (en) * 1987-09-02 1989-03-09 Nyberg Karl Erik Indicating device for indicating the set-down force of the feet of humans or animals
DE3732891A1 (en) * 1987-09-30 1989-04-20 Tetron Developments Ges Fuer I Shoe with measurement device
WO1990000031A1 (en) * 1988-07-01 1990-01-11 Effner Gmbh Transducer for measurement of vertical foot forces

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19533212A1 (en) * 1995-09-08 1997-03-13 Hans Hermann Dr Rer N Schreier Therapeutic protection equipment against overload
EP0916931A1 (en) * 1997-11-06 1999-05-19 Tien-Tsai Huang Insole pad having step-counting device
US10406445B2 (en) 2000-12-15 2019-09-10 Apple Inc. Personal items network, and associated methods
US10080971B2 (en) 2000-12-15 2018-09-25 Apple Inc. Personal items network, and associated methods
US9267793B2 (en) 2000-12-15 2016-02-23 Tvipr, Llc Movement monitoring device for attachment to equipment
US10639552B2 (en) 2000-12-15 2020-05-05 Apple Inc. Personal items network, and associated methods
US9643091B2 (en) 2000-12-15 2017-05-09 Apple Inc. Personal items network, and associated methods
US10427050B2 (en) 2000-12-15 2019-10-01 Apple Inc. Personal items network, and associated methods
KR100398822B1 (en) * 2001-06-13 2003-09-19 주식회사 마인드스윙 Load Data Transmitter for Use in System for Measuring Distribution of Dynamic Load in Athletic Sports
WO2003087730A1 (en) * 2002-04-10 2003-10-23 Siemens Aktiengesellschaft System and method for generating signals
NL2000197C2 (en) * 2006-08-24 2008-02-26 Sportmarketing Consultancy B V System for measuring weight reduction, an inlay body with force sensor, a shoe and a portable control device.
WO2008023978A1 (en) * 2006-08-24 2008-02-28 Sportmarketingconsultancy B.V. System for measuring weight loss, a force sensor pad, a shoe and a portable monitoring device
KR101124292B1 (en) * 2009-05-13 2012-03-27 신동석 Apparatus for body weight scale of shoe type
US9521964B2 (en) 2011-12-23 2016-12-20 Industrial Technology Research Institute System and method for estimating the mechanical behavior of human lower limbs
CN107242635A (en) * 2013-05-24 2017-10-13 姬志刚 A kind of multifunctional sport shoe
US9677928B2 (en) 2015-04-26 2017-06-13 Samuel Lightstone Method, device and system for fitness tracking
US10595583B2 (en) 2015-05-29 2020-03-24 Nike, Inc. Determining footwear replacement based on piezoelectric output
WO2016196349A1 (en) * 2015-05-29 2016-12-08 Nike Innovate C.V. Wearable article with a kinetic energy generator
US11350693B2 (en) 2015-05-29 2022-06-07 Nike, Inc. Determining footwear replacement based on piezoelectric output
US11672302B2 (en) 2015-05-29 2023-06-13 Nike, Inc. Writing to apparel by flexing piezoelectric generator
US11751626B2 (en) 2015-05-29 2023-09-12 Nike, Inc. Determining footwear replacement based on piezoelectric output
EP3219257A1 (en) * 2016-03-18 2017-09-20 Bromm, Boris Device for measuring a pressure force
CN112006662A (en) * 2020-08-31 2020-12-01 东华大学 System for real-time monitoring weight and analyzing water loss parameters during exercise

Similar Documents

Publication Publication Date Title
Wertsch et al. A portable insole plantar pressure measurement system
US4858620A (en) Warning system for excessive orthopedic pressures
WO1995014430A1 (en) Method for determination of the weight of human body and device for performing the method
US5323650A (en) System for continuously measuring forces applied to the foot
US5622180A (en) Device for measuring heartbeat rate
US5678448A (en) System for continuously measuring forces applied by the foot
US5012817A (en) Dolorimeter apparatus
Abu-Faraj et al. A Holter-type, microprocessor-based, rehabilitation instrument for acquisition and storage of plantar pressure data
US6398740B1 (en) Apparatus and method for monitoring the temperatures on the plantar aspects of a human foot and other vital health information
KR960008074B1 (en) Device for monitoring loads exerted on parts of the body
US5551437A (en) Sensor for measuring blood pressure
US4730625A (en) Posture monitoring system
CN101646924B (en) Optical power modulation
US6024575A (en) Arrangement for monitoring physiological signals
Cobb et al. Transducers for foot pressure measurement: survey of recent developments
Rana Application of force sensing resistor (FSR) in design of pressure scanning system for plantar pressure measurement
WO2009074928A1 (en) Measurement apparatus and method
US20180344210A1 (en) Extensible Wearable Weight Scale and Sensor System
CN109152666A (en) pressure sensor
US4121453A (en) Foot force transducer
KR102308547B1 (en) Portable blood pressure measuring device
US20060129068A1 (en) Palpometer and methods of use thereof
US20200253473A1 (en) Flexible printed circuit board module for smart band
Maalej et al. A miniature electrooptical force transducer
US20210080317A1 (en) Extensible wearable weight scale and sensor system

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): JP US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: CA