GB2458389A - Wearable physiological monitoring device - Google Patents

Wearable physiological monitoring device Download PDF

Info

Publication number
GB2458389A
GB2458389A GB0906368A GB0906368A GB2458389A GB 2458389 A GB2458389 A GB 2458389A GB 0906368 A GB0906368 A GB 0906368A GB 0906368 A GB0906368 A GB 0906368A GB 2458389 A GB2458389 A GB 2458389A
Authority
GB
United Kingdom
Prior art keywords
sensor
sensor electronics
electronics module
ecg
connection unit
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.)
Granted
Application number
GB0906368A
Other versions
GB0906368D0 (en
GB2458389B (en
Inventor
Justin Pisani
Peter Howard
Daniel Cade
Stephen Ward
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB0906368A priority Critical patent/GB2458389B/en
Publication of GB0906368D0 publication Critical patent/GB0906368D0/en
Publication of GB2458389A publication Critical patent/GB2458389A/en
Application granted granted Critical
Publication of GB2458389B publication Critical patent/GB2458389B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/68Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/683Means for maintaining contact with the body
    • A61B5/6831Straps, bands or harnesses
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/0002Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/0002Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
    • A61B5/0004Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by the type of physiological signal transmitted
    • A61B5/0006ECG or EEG signals
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/0002Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
    • A61B5/0031Implanted circuitry
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/24Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/316Modalities, i.e. specific diagnostic methods
    • A61B5/318Heart-related electrical modalities, e.g. electrocardiography [ECG]
    • A61B5/0402
    • A61B5/0408
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/05Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/053Measuring electrical impedance or conductance of a portion of the body
    • A61B5/0531Measuring skin impedance
    • 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
    • A61B5/11Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
    • A61B5/113Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb occurring during breathing
    • A61B5/1135Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb occurring during breathing by monitoring thoracic expansion
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/24Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/25Bioelectric electrodes therefor

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Veterinary Medicine (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Cardiology (AREA)
  • Physiology (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)

Abstract

The device comprises a body worn unit and a processing unit 40. The former includes at least three electrodes 51-54 arranged in a substantially triangular configuration to measure various physiological parameters, and may be a strap-on harness 57, an item of clothing or a self-adhesive patch (fig. 6). Additional sensors may be provided on the unit (e.g. thermometer 42, pulse oximetry sensor, accelerometer). The processing unit is removably attached to the body worn unit using snap rivets 58, 59, 60, 63, 64 and eyelets 44, and comprises sensor electronics to analyse data and transmit it to a remote site. The monitoring device measures physiological parameters such as ECG, respiration (using motion or impedance measurements), skin surface temperature, body gravitational load, skin surface electrical impedance, blood oxygen level, orientation, and motion. Alternatively, the device may be mounted remotely (fig. 8). Also disclosed is an ECG measurement device using an accelerometer to detect motion and reduce signal bandwidth and improve ECG signal to noise ratio (fig. 9).

Description

SENSOR
Background to the Invention
The invention relates to a compact non-invasive personal sensor device capable of monitoring the health and welfare of an ambulatory user in real time by the collection and analysis of a plurality of physiological signals.
The types of physiological signals to be collected, analysed and transmitted within the single unit include, for example. Elecfrocardiogram (ECG). Respiration Effort, Body Skin Temperature, Body Impedance, Skin Surface Impedance, Blood oxygen level, pulsotile waveform. Body Orientation, Body Motion, Body gravitational load and activity level.
Devices which extract, process and display one or more of the above signals are known in the art, but are generally intended for the monitoring of patients with known or suspected ailments, within a clinical environment. Typically, these units connect to the patient using separate sensors, either by wire or wireless means, and then process the recovered signals in a remote unit which is not intended to be worn by the user. Thus, such devices are not intended for true ambulatory use and also rely on easy access to the user's body in order to connect the sensor and probes in several locations.
Ambulatory monitors are also known in the art, but typically record a single or a few parameters such as two channels of a users ECG. Such devices are intended for infrequent use. Such devices typically store data in a data logging unit which the user is required to also carry, which is then taken to a medical expert for review and analysis after the monitoring session has completed. Hence such devices are not suited to use in real time.
An object of this invention is to provide a simple body worn device which is particularly suited for use by people engaged in activities which could result in injury and trauma.
Impoitont Featur*s Accordingly, this invention provides a compact body-worn unit comprising of a Compact sensor electronics module capable of collecting a plurality of physiological signals, analysing those signals, and selectively transmitting the signals and/or the analysis of them over a communications link, which may be wired or wireless.
* :. Typical users of such a device may be engaged in hazardous activities and in order to ° minimise the risk of injury be required to wear protective clothing which provides a limitation on the body area which may be used for collecting physiological signals. It is an essential feature of such as sensor that it mounts in a position which has a low probability of conflict with the user's apparel and minimises the area on the body needed to connect sensors to : the user's skin. S... *..
**,. Accordingly, the sensor electronics module connects to single sensor connection device arranged in an approximately triangular shape to fit on and around the thorocic cavity and * .. containing a plurality of sensor electrodes which in conjunction with the sensor electronics :.: . module provide: * : * Two or more distinct views of the Users Electrocardiogram (ECG).
Those skilled in the art will be aware that the provision of two or more distinct electrical views of heart allows on improvement in the defection and accuracy of heart beat electrical activity by allowing the electrical activity to be compared on each view and improved immunity to noise which is more prevalent.
* Respiration Effort derived from electrical impedance changes within the body due to thoracic cavity and abdominal movement which occurs during breathing.
* Respiration Effort derived from measuring thoracic cavity expansion and contraction using an external sensor fitted around part of the chest circumference.
* Sp02 Blood Oxygen and Pulsatile Waveform extraction by measuring the blood oxygenation variations on the sternum * Thoracic Cavity Skin Surface Impedance * Correct electrode contact confirmation by measuring impedance between electrodes.
* Activity, Impact and Body Position levels derived from 2 or 3 axes of g force measurement made using accelerometer devices contain in the sensor electronics module.
The Sensor Electronics Module is self supported by the Sensor Connection Device and can be easily mounted and dismounted from the Sensor Connection Device without the need for special tools by the use of suitable connectors. The shape and ergonomics of the Sensor Connection Device ore such that the user con correctly apply the device without the need for specialist medical assistance or training and that they can be used by both male and female users.
The Sensor Electronics module is battery powered either by primary or rechargeable means.
Preferably, in order to provide user flexibility in mounting the sensor to the body, the Sensor Connection Device may be realised in a variety of means to best suit that user, including, for example, a disposable adhesive electrode array, a re-usable strap based harness assembly or as an integrated element within clothing such as a vest or fop.
An additional object of this aspect of the invention is to allow the continued useful use of the device by a medic once a user has been Injured. In this circumstance it may be preferable *... to not have the sensor electronics module mounted on the body which may interfere with : the medics need to access the body in order to provide care. In this circumstance, the *... medic could remove or take a new Sensor Electronics Module and use a version of a Sensor *** Connection Device which allows the Sensor Electronics Module to be remotely connected to electrodes and sensors on the body. The position of these sensors and electrodes can be * : determined by the medic to meet clinical need, thus providing the medic with a basic vital signs monitoring capability as commonly used in triage of casualties. **** * *
Introduction to the Drawings
* : * *: With reference to the drawings: FIGURE 1 shows a diagram of the preferred sensor locations on a user.
FIGURE 2 shows a diagram of the sensor electronics module and sensor connection device where the sensor connection device is achieved using a strop based harness.
FIGURE 3 shows a rear view of the user wearing the device described in FIGURE 2 FIGURE 4 shows how the sensor electronics module interconnects to strap based harness sensor connection device.
FIGURE 5 shows how the strap based harness sensor collection device sensors and electrodes are arranged.
FIGURE 6 shows a diagram of an adhesive sensor connection device.
FIGURE 7 shows a diagram of how the sensor electronics module may be combined into clothing.
FIGURE 8 shows a diagram of how a remote sensor connection device can be provided for a medic.
FIGURE 9 shows a block diagram of the sensor electronics device.
Preferred Embodiment In a preferred embodiment, with reference to FIGURE 1. the signals of interest may be derived from an approximately triangular set of electrodes applied to the central thoracic cavity.
By the use of differential electrical amplification the hearts electrical activity can be measijred between electrodes [1J and [3], [11 and (2], and [3] and [2]. Those skilled in the art will be aware that whilst the electrode spacing is small, for example 10 cms, the proximity of the sensor to the heart will compensate to allow a reasonable signal to noise ratio to be achieved.
Respiration effort may be measured across electrodes (1] and (2J simultaneously, by presenting a high frequency AC signal from a constant current source, such that variation in the impedance of the diaphragm due to respiration will result in a voltage waveform which approximates to respiration effort. This signal may be used to derive respiration rate after appropriate filtering.
This some technique can also be used to determine the impedance of the electrode [1), [2], *. [3] connection to the skin and to flag a "lead-off" condition if they exceed a certain : threshold. * * .
*... Those skilled in the art will also be aware that blood oxygen percentage level and pulsatile waveform can also be measured using the established technique of pulse oximetery and a reflectance type sensor placed on the sternum bone within the same approximate area [4].
The use of this sensor may be optional depending on the user's requirements. S...
With reference to FIGURE 2, the Sensor Electronics Module (10] electrically and mechanically connects to the Sensor Connection Device which Is derived using a strap based harness (20].
: * The strap harness Sensor Collection Device 1201 is made up of a central mounting point 1111 made, for example, of a suitable non-conductive body conformal material, for example * : : leather or vinyl, which is cut to follow the approximate contours of the central thoracic cavity.
The central mounting point (ii] is attached, for example, by means of clothing stitching, to semi flexible straps which are passed around the body to secure the connection device in place and hold the device to the body with a degree on tension such that unwanted movement of the device is minimised. Those skilled in the art will be aware that such strap device may be individually adjusted using integral adjusters commonly found in clothing straps to allow for voilofion in user body sizes. In addition, the strap harness may be produced in varying sizes (for example small, medium and large) to cope with larger user to user size variations.
One strop passes horizontally around the trunk [20] and may also contain within it a semi elastic variable resistance sensor whose resistance vanes when expanded and contracted.
in this case by the movement of the user's chest with breathing. This sensor may be made from a thin, for example 4 mm thick, rectangular cross section of silver loaded flexible material such as SantopreneTM. Those skilled in the art will also be aware that the sensor could also be achieved by inlaying loops of wire within the strap [20] and measuring the variation in inductance achieved by the some chest expansion and contraction which will cause the loops of wire to change in proximity to each other.
The lop part of the central mounting point Ill) is held in place by Iwo vertical strops [21] and (22] which act to tension the upper part of the mounting point [11]. The Electrode material is attached by, for example, by normal clothing thread to the body facing side of the strap harness assembly at the appropriate points to achieve the desired electrode positions [30], (31]. [33]. The double straps 121],[22] are advantageous in that they act to hold the uppermost electrode [33] in place when the user is walking and the upper body yaws with the associated arm movement. In addition the paint at which the strops 121), (22) attach to the central mounting point [11) provide an aperture to place the reflectance pulse oximetery sensor [32] in position.
Referring to FIGURE 3, at the rear of the user, the vertical straps [37), [38) run down the back and connect to the horizontal strap 136]. The horizontal strap has a clasp [35] to allow the strap to be separated for ease of application and removal. This clasp also provides for adjustment of the circumference of the horizontal belt to the users precise trunk circumference at that point by allowing the amount of belt length to be varied by adjusting the position of the clasp on the belt [34].
FIGURE 4 shows the central mounting point (43]. Electrical and mechanical connection is achieved using electrically conductive male snap rivets and eyelets [44] (for example Micron E39 1282-085 and E3 11 -a2cl). The Sensor Electronics Module [40) contains the matching female snap fixing allowing the module to be connected to the central mounting point by pressing the Iwo parts together. Additionally, the Sensor Electronics Module provides extra *... electrical interconnect to allow charging of its internal battery, wired transfer of data, and * connection to the pulse oximetery sensor. * .
*... This can be achieved for example by recessed plated copper terminals [47] moulded into the module housing [46]. Connection to these terminals con be made by a corresponding * : set of male sprung contacts of matching dimensions (48] mounted on the central mounting point (43) of the sensor connection device, such that when the two devices are brought *. together electrical contact is made between the sprung contacts (49) and the recessed terminals (47]. The sensor electronics module also contains an elevated thermally conductive probe [42] which contacts the user's skin and contains internally a temperature measuring :.: ** device such as a thermistor to measure skin temperature.
* :" FIGURE 5 shows the body facing side of the central mounting point [50]. The snap rivets [58J,(59J,(601,(63],(64) pass through the mounting point and allow electrical connection to the electrodes [501,[52),[54J which are on the opposite side to the Sensor Electronics Module connections. Those skilled in the art will be aware that this can be achieved by a number of means including for example flexible wires, flexible conductive printed circuit boards, or by direct connection to the electrode material.
The electrode matenal used for [511,[52L[53),[54) may be made of a fabric woven from silver loaded thread, or by the use of conductive flexible material such as silver loaded SantoprenelM. Additional snap rivets [60), [63] connect via wires to the respiration chest belt sensor contained within part of the circumference of the horizontal straps [57].
The reflectance pulse oximetery sensor 1621 is held within the assembly with an aperture [68] to allow the sensor head to protrude and contact the body and is electrically connected by wire to the rear of the electrical connector block [65]. Positive pressure on the sensor can be achieved for example, by placing sprung close cell foam [67] between the sensor [69] and the central mounting point material [66].
A protective, waterproof fabric layer would be overlayed on the rear of the central mounting point [50] to cover the electrical connections and protect from damage.
FIGURE 6 shows the preferred embodiment of an adhesive Senor Connection Device. The device comprises of a sculpted adhesive membrane (72] (for example the lntelllcoaf 5230 range) to hold the sensor to the skin. The three electrodes (73J,[74J and [75] are provided by a circular hydrogel disk (for example Ludlow RG63B) of which one side contacts the skin and the other side a flexible polyester membrane [76] . panted with conductive silver /silver chloride ink tracks (77] to Connect between the electrode points and the snap rivets [79) arranged in the same locations as used in the earlier strap harness example. (7)] is a release liner material (eg: Flexcon 94PRTPFW) used to protect the adhesive membrane before application to the body.
Those skilled in the art will also be aware that alternative electrode assemblies are commonly provided with conductive snap fittings (eg: Ambu� BlueSensor L) and that these could also be used.
FIGURE 7 shows how the sensor connection device may be incorporated into a user's apparel either as part of a vest [82] which may be constructed from a suitable fabric such a LycraTM and has sewn internal to the vest electrodes of the style discussed earlier and connects to the Sensor Electronics Module (80] via the same conductive snap rivet method as discussed earlier. The vest can also have integrated into it a flexible semi-conductive strap [81] as discussed earlier to detect user's respiratory chest movement. [83] shows an alternate example of a top targeted at a female user constructed out of similar materials and methods.
FIGURE 8 shows how the sensor can be remotely mounted from the user by a medic.
: Commonly used ECG electrodes 1911. [90] and [92] ore used to connect to the users skin * providing an ECG signal view as desired by the medic. For example the configuration in FIGURE 8 provides an ECG view those skilled in the art will recognise as Lead I between (90] and [91] and Lead II between [91) and [92]. Such conventional ECG views may offer an : advantage of familiarity to a medic. S...
. Resprotory effort may also be measured between [91] and [92]. The electrodes connect to the sensor electronics module [94] by a special remote sensor connection device which has * a connection plate comprising of a plastic carrier and aforementioned conductive snap :.: *. rivets connecting to flying electrode wires with a suitable termination to connect to the electrodes.
*..S..
* Additionally, the device contains a wired connection to a pulse oximeter device (95] for example, the NONIN XPOD. which provides a variety of sensor clip assemblies [96] to connect to the users body f or example as a finger, toe or ear clip. In this configuration, the medic may observe the sensor output by means of a portable computing device, for example on IPAQ. communicating to the sensor electronics module by wire or wireless means (for example BluetoothTM) Refening to FIGURE JO. a preferred embodiment of the sensor electronics module may be achieved as follows: ECG measurements are token from the subject from electrodes sensors attached to the skin and connected to the electronics via connections (100). [101]. and [102).
Considering a single channel of ECG 1 as shown, using a differential input allows the ECG signal to be differentially amplified by the amplifier (116]. greatly reducing the effect of noise.
porticulariy mains electrical hum. After amplification, the ECG signal is filtered using a band pass filter 117)10 select only those frequencies of interest, which will be in the region of 0.05Hz to 150Hz. This is followed by further amplification [118] and low-pass filtering [119) before presentation of the signal to an AID input (120] of the microprocessor unit (131], which may be an embedded microcontroller such as a Philips 80C51. Additional noise immunity may be provided by, for example reducing the ECG bandwidth to for example 2Hz to 100Hz when a user is moving and this may be controlled by the microcontroller which is able to detect the presence of motion via the accelerometer [1041. The additional ECG2 and 3 channels would be provided using the same methodology.
Impedance respiration effort is measured using a simple current source amplifier (121) to drive on impedance signal to the RE and LE electrode connections [100] and [102]. The frequency of the current source amplifier output could be in the range of 50-150kHz. The same electrodes are used to sense the voltage using a differential amplification stage 1114) and 1112]. band pass filtering [115] and (113), and a simple AM diode detector [123] and then further amplification (122) and low-pass filtering [125) before presentation of the signal to an AID input [126) of the microprocessor unit (131].
A chest belt sensor is used to provide on alternative method of measuring respiration effort [103]. The sensor (103] is physically attached to the subject as part of the aforementioned sensor connection device, and electrically connected as part of an impedance measurement network, with its centre point fed into an amplification stage [109] and a band pass filter [107). Further amplification may be provided (110] and low-pass filtering [108) can be applied before presentation of the signal to an A/D input 1128] of the microprocessor unit [131].
Respiration measurements may also be derived from the ECG signal. It is well known in the art that, in a normal subject, the R-R interval characteristic of the ECG signal varies over time, : and this variation is associated with the respiration rate. This is known as Respiratory Sinus Arrhythmia (RSA). In this embodiment of the invention, respiration data are derived by measuring the variations in R-R interval. This requires that normal beats are identified, so that abnormal beats and artefacfs are not included in the analysis. To do this requires analysis of the beats which is performed by the microcontroller [131].
* . The preferred embodiment has provision for a accelerometer (104]. which is assumed to be a digital two-axis device, for example the Analog Devices AD XL2O2E. but may also be a three axis device, or two two-axis devices placed orthogonally. This can provide information : *. either of the subject's motion, or of their orientation (uptight or prone). It is shown connected digitally to the microprocessor [131] via connections 1129] which include provision for an :1u: enable control signal to improve power management.
Skin temperature is shown being measured by a simple thermistor [6]. the output of which is amplified [7) before being presented to an A/D input [130) of the microprocessor unit [131].
It will be clear to those skilled in the art that other methods of deriving the physiological parameters would be possible, and that other parameters could also be measured using well-known techniques.
The circuits described are powered by a cell or cells which may be either primary (for example Alkaline LRO3 cells) or secondary rechargeable (for example Vorta LIP 553048) which may be regulated to provide a stable and controlled voltage to the circuit elements.
After analysing the signals presented to it. the microprocessor [1311 processes the signals further and may undertake further signal condition, filtering and numerical computation in order to derive secondary measures from the signals recovery, either in isolation or in conjunction with other signals and sends the required data either to on rf transmitter [134) which may be for example, a wireless transceiver such as a Bluetooth radio modem (for example a Wireless Futures BluewaveTM or a ZigbeeTM radio transceiver. Alternately a wire based communications driver (135] con be used. This communications driver also provides a serial data communication interface for the connection of a pulse oximeter sensor to the unit. * I * S. S S... * . *S.. *...
S *.. *SSS * I S... * S. * S S *SS * *..
S I

Claims (16)

  1. CLAIMSWe Claim: I. A compact body worn, anatomicolly shaped, monitoring device intended for use by a ambulatory user which enables the measurement, processing, analysis and onward transmission of multiple physiological parameters where said device comprises of: a sensor electronics module unit which processes analyses and transfers the physiological information to remote device for capture, display, analysis or further processing either by wired or wireless means.a body worn connection unit containing three or more electrodes arranged in an approximately triangular configuration of which the upper point is placed approximately at the sternum and the lower points approximately on the abdomen.and is able to measure and process: two or more distinct views of the users electrocardiogram (ECG).Respiration effort by measuring electrical impedance or motion changes.skin surface temperature.body gravitational load in vertical and horizontal axes.skin surface electrical impedance.
  2. 2. A device as in Claim 1 where the sensor electronics module is anatomically shaped to fit the users thoracic cavity in an approximately triangular, three lobed arrangement, shaped to fit between I he sternum and abdomen. * I *
  3. 3. A device as in Claim I where the sensor connection unit Consists of a central connection conformal material piece shaped to fit between the users sternum and S... . abdomen in an approximate triangular, three lobed configuration, where the central connection piece contains the means to connect and support the sensor electronics *..: module by three or more electrically conductive snap rivet fittings and in turn connect these fitting to three or more body contacting conductive electrodes and sensors, and is retained in place by a horizontal flexible fabric strap and two vertical fabric straps extending from the sternum point over each shoulder and reconnecting * *. to the horizontal strap where the Iwo meet on the user back. * * S ISS *
  4. 4. A device as in Claim 1 where the Sensor Electronics Module contains addition high * : * density electrical interconnect terminals which may be connected to via a male electrically conductive set of spring contacts of similar dimensions held within the body worn connection unit and enables the connection of: wired computing terminals.pulse oximetery module held within the sensor connection unit.other sensors.o power source to recharge power cells contained within the Sensor Electronics Module.
  5. 5. A device as in Claim 3 where the horizontal strap also contains the means to measure the users breathing related chest movement by the incorporation of an variable impedance sensor which connects to the sensor electronics module via conductive snap fittings or by the interconnect defined in Claim 3.
  6. 6. A device as in Claim 3 where said straps contain adjusters to allow the user to tension the sensor connection unit to the body optimally.
  7. 7. A device as in Claim 3 where the sensor connection unit is produced in sizes to allow (itment to a broader range of body sizes.
  8. 8. A device as in Claim I where the sensor connection unit consist a conductive adhesive patch laminate structure of three electrodes conforming to the same triangular elecfrode configuration and where the adhesive patch uses the same connection fitting types and locations to allow it to connect to the same Sensor electronics module without need for modification.
  9. 9. A device as in Claim I where the sensor connection unit consist of a fabric vest structure containing three or more electrodes conforming to the same triangular electrode configuration and where vest uses the some connection fitting types and locations to allow it to connect to the same sensor electronics module without need for its modification.
  10. 10. A device as in Claim 7 also contains the means to measure the users breathing related chest movement by the incorporation of an horizontal variable Impedance sensor which connects to the sensor electronics module via conductive snap fittings or by the interconnect defined in Claim 4.
  11. 11. A device os in Claim 1 where the sensor electronic module can communicate with external devices in order to transfer it physiological signals, or derivations of said *:::: signals by processing performed by the sensor electronics module
  12. 12. A device as in Claim 1. where the sensor connection unit consist a contact plate to connect electrically to the sensor electronics module and offers three or more individual electrode wires which may be used to connect to individual electrodes at * : * other locations on the body and also to a separate pulse oximeter module.*...
  13. 13. A device as in Claim 1, where the sensor electronics module utilises two of the ECG views of the user to improve the performance of the detection of heart beat electrical activity by using both views to determine if such a beat has occurred. * SI * * **"
  14. 14. A sensor electronics device for measuring a users ECG where the sensor detects the * ....: presence of motion by measuring gravitational load variation on the body using an * accelerometer and uses evidence of motion to reduce the bandwidth of the ECG signal receiver thus improving the signal to noise of the ECG.
  15. 15. A measuring device substantially as herein before described with reference to or as shown in accompanying drawings.
  16. 16. A measuring system substantially as herein before described with reference to or as shown in accompanying drawings. * * * ** SSSS * * **** S... *5S5 * S S... * .. * S * S.. S*.SS.S S *
GB0906368A 2005-04-14 2005-04-14 Wearable physiological monitoring device Expired - Fee Related GB2458389B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0906368A GB2458389B (en) 2005-04-14 2005-04-14 Wearable physiological monitoring device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0507486A GB2425181B (en) 2005-04-14 2005-04-14 Wearable physiological monitoring device
GB0906368A GB2458389B (en) 2005-04-14 2005-04-14 Wearable physiological monitoring device

Publications (3)

Publication Number Publication Date
GB0906368D0 GB0906368D0 (en) 2009-05-20
GB2458389A true GB2458389A (en) 2009-09-23
GB2458389B GB2458389B (en) 2010-03-24

Family

ID=34611078

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0906368A Expired - Fee Related GB2458389B (en) 2005-04-14 2005-04-14 Wearable physiological monitoring device
GB0507486A Expired - Fee Related GB2425181B (en) 2005-04-14 2005-04-14 Wearable physiological monitoring device

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB0507486A Expired - Fee Related GB2425181B (en) 2005-04-14 2005-04-14 Wearable physiological monitoring device

Country Status (1)

Country Link
GB (2) GB2458389B (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9226679B2 (en) 2010-05-21 2016-01-05 Medicomp, Inc. Systems and methods for interelectrode distance optimization in a retractable multi-use cardiac monitor
US20160113808A1 (en) * 2014-10-22 2016-04-28 Zentan Technology Co., Ltd. Sternum supporting harness
CN106214122A (en) * 2016-07-18 2016-12-14 电子科技大学 A kind of monitoring and the wearable device of analysis human body multiple organ health status
US9585584B2 (en) 2010-05-21 2017-03-07 Medicomp, Inc. Physiological signal monitor with retractable wires
WO2017071785A3 (en) * 2015-08-26 2017-06-08 Bioself Technology Ltd An apparatus for aiding relaxation
CN106859615A (en) * 2016-11-17 2017-06-20 吴毅晖 Jettisonable Wireless physiological monitor and first-aid system
CN108742597A (en) * 2018-07-09 2018-11-06 上海掌门科技有限公司 Cardioelectric monitor shoulder strap and system
WO2018226108A1 (en) 2017-06-05 2018-12-13 Telemedical Innovations Multifunctional device for remote monitoring of a patient's condition
US11179293B2 (en) 2017-07-28 2021-11-23 Stryker Corporation Patient support system with chest compression system and harness assembly with sensor system

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4829043B2 (en) 2006-08-29 2011-11-30 セイコーインスツル株式会社 Biological information detector
EP2194856B1 (en) * 2007-09-14 2021-09-01 Medtronic Monitoring, Inc. Adherent cardiac monitor
GB0721575D0 (en) * 2007-11-02 2007-12-12 Sensor Technology & Devices Lt Measurement of oxygen saturation of blood haemoglobin
DE102008057597A1 (en) * 2008-11-12 2010-05-27 Getemed Medizin- Und Informationstechnik Ag harness
FR2938929B1 (en) * 2008-11-25 2011-01-21 Inst Rech Developpement Ird WEATHER STATION
WO2011131233A1 (en) * 2010-04-20 2011-10-27 Wearable Information Technologies, S.L. (Weartech) Sensor apparatus
GB2487758A (en) 2011-02-03 2012-08-08 Isansys Lifecare Ltd Health monitoring electrode assembly
GB201101858D0 (en) 2011-02-03 2011-03-23 Isansys Lifecare Ltd Health monitoring
US8818478B2 (en) 2011-03-31 2014-08-26 Adidas Ag Sensor garment
US11944441B2 (en) 2012-12-31 2024-04-02 Suunto Oy Electro-mechanic assembly and integrated snap connectors
US11058338B2 (en) 2012-12-31 2021-07-13 Suunto Oy Electrode assembly
FI124657B (en) 2012-12-31 2014-11-28 Suunto Oy Male connector for a telemetric receiver
FI126204B (en) 2013-06-14 2016-08-15 Suunto Oy Apparatus and method for installing an electronic device having a removable male contact portion
CN106535756A (en) * 2014-05-30 2017-03-22 拉菲尔·霍尔兹哈克 Module for detecting bodily signals
US20220142497A1 (en) * 2020-11-11 2022-05-12 Anthony Brunette Electrocardiogram lead attachment device

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4494551A (en) * 1982-11-12 1985-01-22 Medicomp, Inc. Alterable frequency response electrocardiographic amplifier
US5458124A (en) * 1994-02-08 1995-10-17 Stanko; Bruce E. Electrocardiographic signal monitoring system
US5999845A (en) * 1997-05-21 1999-12-07 Quinton Instrument Company Muscle artifact noise detector for ECG signals
EP1176905A1 (en) * 1999-04-15 2002-02-06 Nexan Limited Portable remote patient telemonitoring system
WO2002022006A1 (en) * 2000-09-12 2002-03-21 Nexan Limited Disposable vital signs monitoring sensor band with reusable electronics module
WO2002022010A1 (en) * 2000-09-12 2002-03-21 Nexan Limited Disposable vital signs monitoring sensor band with removable alignment sheet
EP1221299A2 (en) * 2000-12-29 2002-07-10 GE Medical Systems Information Technologies, Inc. Method and apparatus for generating a twelve-lead ecg from fewer than ten electrodes
US6602201B1 (en) * 2000-07-10 2003-08-05 Cardiodynamics International Corporation Apparatus and method for determining cardiac output in a living subject
US6757392B1 (en) * 1995-07-06 2004-06-29 Artemio Granzotto Electronic stethoscope
GB2421082A (en) * 2004-12-07 2006-06-14 Draeger Safety Ag & Co Kgaa Protective apparel having contactless physiological sensing electrodes
EP1782229A2 (en) * 2004-08-26 2007-05-09 Card Guard Scientific Survival Ltd. Health monitor system and a method for health monitoring

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6605046B1 (en) * 1991-06-03 2003-08-12 Del Mar Medical Systems, Llc Ambulatory physio-kinetic monitor with envelope enclosure
US6049730A (en) * 1998-12-28 2000-04-11 Flaga Hf Method and apparatus for improving the accuracy of interpretation of ECG-signals
US6912414B2 (en) * 2002-01-29 2005-06-28 Southwest Research Institute Electrode systems and methods for reducing motion artifact
GB2394294A (en) * 2002-10-18 2004-04-21 Cambridge Neurotechnology Ltd Cardiac sensor with accelerometer

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4494551A (en) * 1982-11-12 1985-01-22 Medicomp, Inc. Alterable frequency response electrocardiographic amplifier
US5458124A (en) * 1994-02-08 1995-10-17 Stanko; Bruce E. Electrocardiographic signal monitoring system
US6757392B1 (en) * 1995-07-06 2004-06-29 Artemio Granzotto Electronic stethoscope
US5999845A (en) * 1997-05-21 1999-12-07 Quinton Instrument Company Muscle artifact noise detector for ECG signals
EP1176905A1 (en) * 1999-04-15 2002-02-06 Nexan Limited Portable remote patient telemonitoring system
US6602201B1 (en) * 2000-07-10 2003-08-05 Cardiodynamics International Corporation Apparatus and method for determining cardiac output in a living subject
WO2002022006A1 (en) * 2000-09-12 2002-03-21 Nexan Limited Disposable vital signs monitoring sensor band with reusable electronics module
WO2002022010A1 (en) * 2000-09-12 2002-03-21 Nexan Limited Disposable vital signs monitoring sensor band with removable alignment sheet
US20020099277A1 (en) * 2000-09-12 2002-07-25 Nexan Limited Disposable vital signs monitoring sensor band with removable alignment sheet
EP1221299A2 (en) * 2000-12-29 2002-07-10 GE Medical Systems Information Technologies, Inc. Method and apparatus for generating a twelve-lead ecg from fewer than ten electrodes
EP1782229A2 (en) * 2004-08-26 2007-05-09 Card Guard Scientific Survival Ltd. Health monitor system and a method for health monitoring
GB2421082A (en) * 2004-12-07 2006-06-14 Draeger Safety Ag & Co Kgaa Protective apparel having contactless physiological sensing electrodes

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9226679B2 (en) 2010-05-21 2016-01-05 Medicomp, Inc. Systems and methods for interelectrode distance optimization in a retractable multi-use cardiac monitor
US9585584B2 (en) 2010-05-21 2017-03-07 Medicomp, Inc. Physiological signal monitor with retractable wires
US20160113808A1 (en) * 2014-10-22 2016-04-28 Zentan Technology Co., Ltd. Sternum supporting harness
WO2017071785A3 (en) * 2015-08-26 2017-06-08 Bioself Technology Ltd An apparatus for aiding relaxation
US12048559B2 (en) 2015-08-26 2024-07-30 Bioself Technology Ltd. Apparatus for aiding relaxation
CN106214122A (en) * 2016-07-18 2016-12-14 电子科技大学 A kind of monitoring and the wearable device of analysis human body multiple organ health status
CN106859615A (en) * 2016-11-17 2017-06-20 吴毅晖 Jettisonable Wireless physiological monitor and first-aid system
WO2018226108A1 (en) 2017-06-05 2018-12-13 Telemedical Innovations Multifunctional device for remote monitoring of a patient's condition
US11179293B2 (en) 2017-07-28 2021-11-23 Stryker Corporation Patient support system with chest compression system and harness assembly with sensor system
US11723835B2 (en) 2017-07-28 2023-08-15 Stryker Corporation Patient support system with chest compression system and harness assembly with sensor system
CN108742597A (en) * 2018-07-09 2018-11-06 上海掌门科技有限公司 Cardioelectric monitor shoulder strap and system

Also Published As

Publication number Publication date
GB0906368D0 (en) 2009-05-20
GB2425181A (en) 2006-10-18
GB2425181B (en) 2010-02-03
GB0507486D0 (en) 2005-05-18
GB2458389B (en) 2010-03-24

Similar Documents

Publication Publication Date Title
GB2458389A (en) Wearable physiological monitoring device
US20220015647A1 (en) Apparatus and system for monitoring
US12053302B2 (en) System and method for monitoring conditions of a subject based on wireless sensor data
US10939870B2 (en) Patient worn sensor assembly
US20210267526A1 (en) Extended wear electrocardiography and physiological sensor monitor
US20170296070A1 (en) Wearable Wireless Multisensor Health Monitor with Head Photoplethysmograph
US9687195B2 (en) Life sign detection and health state assessment system
US20030149349A1 (en) Integral patch type electronic physiological sensor
US20090281394A1 (en) Bio-mechanical sensor system
AU2020244432A1 (en) Apparatus and system for monitoring
AU2022291482A1 (en) Apparatus and system for monitoring

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20230414