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WO2020081473A1 - Dispositif de surveillance de la santé cardiovasculaire - Google Patents

Dispositif de surveillance de la santé cardiovasculaire Download PDF

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Publication number
WO2020081473A1
WO2020081473A1 PCT/US2019/056163 US2019056163W WO2020081473A1 WO 2020081473 A1 WO2020081473 A1 WO 2020081473A1 US 2019056163 W US2019056163 W US 2019056163W WO 2020081473 A1 WO2020081473 A1 WO 2020081473A1
Authority
WO
WIPO (PCT)
Prior art keywords
fastener
conductive
substrate
coupled
electronics subsystem
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.)
Ceased
Application number
PCT/US2019/056163
Other languages
English (en)
Inventor
Corey James Centen
Sarah Ann SMITH
Michael Prichard
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.)
Bodyport Inc
Original Assignee
Bodyport Inc
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
Priority claimed from US16/163,354 external-priority patent/US11197628B2/en
Application filed by Bodyport Inc filed Critical Bodyport Inc
Publication of WO2020081473A1 publication Critical patent/WO2020081473A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801—Arrangements 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
    • A61B5/6813—Specially adapted to be attached to a specific body part
    • A61B5/6829—Foot or ankle
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
    • A61B5/053—Measuring electrical impedance or conductance of a portion of the body
    • A61B5/0535—Impedance plethysmography
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Measuring 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
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/25—Bioelectric electrodes therefor
    • A61B5/263—Bioelectric electrodes therefor characterised by the electrode materials
    • A61B5/268—Bioelectric electrodes therefor characterised by the electrode materials containing conductive polymers, e.g. PEDOT:PSS polymers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/25—Bioelectric electrodes therefor
    • A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
    • A61B5/28—Bioelectric electrodes therefor specially adapted for particular uses for electrocardiography [ECG]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/44—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing persons
    • G01G19/50—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing persons having additional measuring devices, e.g. for height
    • 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
    • A61B2562/0209—Special features of electrodes classified in A61B5/24, A61B5/25, A61B5/283, A61B5/291, A61B5/296, A61B5/053
    • 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
    • A61B2562/02—Details of sensors specially adapted for in-vivo measurements
    • A61B2562/0252—Load cells
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6887—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient mounted on external non-worn devices, e.g. non-medical devices
    • A61B5/6891—Furniture

Definitions

  • This disclosure relates generally to user health monitoring, and more specifically to a device for acquiring and processing biometric signals.
  • the device for simultaneously acquiring electrical and/or force signals through feet of a user, where the electrical signals can include electrocardiogram (ECG) signals and/or impedance plethysmogram (IPG) signals, and the force-derived signals can include ballistocardiogram (BCG) signals and weight measurements.
  • the device includes an electrically- conductive surface for contacting feet of the user and a substrate for supporting weight of the user during use.
  • the device also includes one or more force sensors for detecting forces and force variations through the electrically-conductive surface, electronics for processing electrical signals generated from the electrically conductive surface and signals from the set of force sensors, and a base containing the electronics.
  • the base is structurally coupled to the electrically- conductive surface by a set of conductive fasteners that transmit signals from the electrically- conductive surface to the electronics.
  • the device can also include an integrated display for providing health insights to the user in different operation modes.
  • FIG. 1 A is a schematic of a system for health monitoring, in accordance with one or more embodiments.
  • FIG. 1B is a schematic of a portion of the system shown in FIG. 1 A, in accordance with one or more embodiments.
  • FIG. 2A is a cross sectional view of a first embodiment of a fastener of a system for health monitoring.
  • FIG. 2B is a cross sectional view of a second embodiment of a fastener of a system for health monitoring.
  • FIG. 2C is a cross sectional view of a third embodiment of a fastener of a system for health monitoring.
  • FIG. 2D is a cross sectional view of a fourth embodiment of a fastener of a system for health monitoring.
  • FIG. 3 depicts a top isometric view (left), a bottom isometric view (middle), and an elevation view (right) of an embodiment of a fastener of a system for health monitoring.
  • FIG. 4 is a schematic of a portion of an embodiment of a system for health monitoring.
  • FIG. 5 depicts top views of conductive layer and conductive cap configurations of a first embodiment (top left), a second embodiment (top right), a third embodiment (bottom left), and a fourth embodiment (bottom right) of a system for health monitoring.
  • FIG. 6 is a top view of an embodiment of a system for health monitoring.
  • FIG. 7A is a schematic of a portion of an embodiment of a system for health monitoring.
  • FIG. 7B is a cross section isometric view of an environment of the embodiment of the system shown in FIG. 7A.
  • FIG. 7C is a cross section isometric view of an environment of the embodiment of the system shown in FIG. 7A.
  • FIG. 8A is an isometric view, from the top right, of an embodiment of a system for health monitoring.
  • FIG. 8B is an isometric view, from the bottom right, of the embodiment of the system shown in FIG. 8A.
  • FIG. 8C is a top view of the embodiment of the system shown in FIG. 8A.
  • FIG. 8D is a right side view of the embodiment of the system shown in FIG. 8A
  • FIG. 8E is a front view of the embodiment of the system shown in FIG. 8A
  • FIG. 8F is a bottom view of the embodiment of the system shown in FIG. 8A
  • FIG. 8G is a left side view of the embodiment of the system shown in FIG. 8A
  • FIG. 8H is a back view of the embodiment of the system shown in FIG. 8A
  • FIG. 9 depicts operation modes of a system for health monitoring, in accordance with one or more embodiments.
  • FIG. 1 A is a schematic of a system 100 for health monitoring, in accordance with one or more embodiments and FIG. 1B is a schematic of a portion of the system 100 shown in FIG. 1 A, in accordance with one or more embodiments.
  • the system 100 includes a first fastener 1 lOa and a second fastener 1 lOb, each of the first fastener 1 lOa and the second fastener 1 lOb comprising a body 112 and a conductive cap (described and shown in more detail below) coupled to an end region of a body 112.
  • the system 100 further includes a substrate 120 with a first port l24a and a second port l24b each passing into a first broad surface 121 of the substrate 120.
  • the first port l24a retains the first fastener 1 lOa in position and the second port l24b retains the second fastener 110b in position, to facilitate coupling between elements of the system 100.
  • the first broad surface 121 of the substrate 120 is coupled to a conductive layer 130.
  • the conductive layer 130 is separated into a first subregion l32a electrically coupled to a conductive portion of the first fastener 1 lOa and a second subregion l32b electrically coupled to a conductive portion of the second fastener 1 lOb.
  • the first subregion l32a is electrically isolated from the second subregion l32b to prevent electrical bridging across the first subregion l32a and the second subregion l32b.
  • the system 100 can also include a base 160 that functions to house or otherwise support one or more elements of the system 100, as described in more detail below.
  • the base 160 is supported by the feet 169, and the feet 169 function as the points of contact between the base 160 and the ground.
  • the system 100 can also include a set of force sensors 140 in communication with the substrate 120 and an electronics subsystem 150, where the set of force sensors 140 function to generate and transmit force-derived signals that can be processed simultaneously with the electrical signals to derive comprehensive insights into a user’s health and/or for noise mitigation purposes.
  • the set of force sensors 140 can thus measure static and dynamic loads transferred to the substrate 110 when a user interacts with the system 100
  • the set of force sensors 140 form the main point of contact between the substrate 110 or the base 160, and feet 169.
  • the system 100 includes four force sensors positioned proximal the comers of the substrate 100 each sensor configured to a foot 169; however, in alternative embodiments, the system 100 can include other suitable numbers of force sensors positioned relative to the substrate 110 in another manner.
  • the set of force sensors 140 are load cells configured to generate an electrical signal that is proportional to a force being measured.
  • the electronics subsystem 150 shown in FIG. 1B includes an electrical signal channel 152 electrically coupled to the first fastener 1 lOa and the second fastener 1 lOb and a force signal channel 153 electrically coupled to the set of force sensors 140, and can include additional electrical signal channels and/or force signal channels (not shown in the cross-section view).
  • the electrical signal channel 152 may transmit various bio-electrical signals such as electrocardiogram (ECG) and impedance plethysmogram (IPG), and the force signal channel 153 may transmit signals such as ballistocardiogram (BCG) signals and weight signals.
  • ECG electrocardiogram
  • IPG impedance plethysmogram
  • BCG ballistocardiogram
  • the electronics subsystem 150 can also include current output circuitry that injects a current (e.g., a current less than lmA, a current less than 5mA, etc.) at a frequency (e.g., 2- 100kHz) in order to detect active electrical signals, such as IPG signals, from the user as the user interacts with the system 100.
  • the electronics subsystem 150 can include a power management subsystem 156 that provides power to one or more components of the system 100, a data transmission link 158 for transmission of data to remote computing systems (e.g., such as a remote computing system hosting the network analysis engine 159 described below), and a processor 155 for providing control instructions to controllable elements of the system and/or coordinating operation states of the system 100.
  • a networked analysis engine 159 can be in communication with the data transmission link 158 of the electronics subsystem 150. As such, the networked analysis engine 159 can be hosted remotely and can operate to process electrical data inputs and force-derived data inputs. The networked analysis engine 159 can also transmit outputs to other systems to promote health of a user interacting with the system 100.
  • the system 100 functions to provide a device that is user-friendly, comfortable, and configured to promote regular (e.g., daily, weekly, etc.) use by a user.
  • the system can provide multiple types of signals that are relevant to different health states (e.g., different cardiovascular health states, other health states).
  • the system can also provide an in-home solution that promotes regular use in order to encourage early detection of health issues, in particular cardiovascular health issues.
  • the system 100 can include a device having a form factor and functionality of a weighing scale, such that the device, while a user undergoes a routine weighing process, automatically generates electrical signal data and force signal data that can be co-processed for monitoring user health.
  • the device can be configured to unobtrusively and non-invasively collect and fuse multiple signal types, without overburdening the user.
  • the first fastener 1 lOa and the second fastener 1 lOb function to simultaneously provide structural support to and to couple elements of the system together (e.g., the substrate 120 to the base 160).
  • the first fastener 1 lOa and/or the second fastener 1 lOb can additionally include electrically conductive regions that facilitate transmission of electrical signals generated in response to interactions with the feet of the user to the electronics subsystem 150.
  • One or more portions of the first fastener 1 lOa and/or the second fastener 1 lOb can also function to seal respective openings in surfaces (e.g., a surface of the substrate 120, a surface of the base 160 of elements of the system 100, etc.) to protect sensitive components (e.g., components of the electronics subsystem 150) from fluid ingress during use of the system 100 by a user, or while stationed in an ambient environment.
  • surfaces e.g., a surface of the substrate 120, a surface of the base 160 of elements of the system 100, etc.
  • sensitive components e.g., components of the electronics subsystem 150
  • the fasteners can include one or more of: a screw, a pin, a nail, a bolt, or another fastener having another form factor.
  • a portion (e.g., a first end region, a second end region) of a fastener can be threaded in order to cooperate with other retaining elements for coupling portions of the system 100 together. For instance, as shown in FIG.
  • the first fastener 1 lOa can pass into a first port l24a of the substrate 120 and the second fastener 1 lOb can pass into a second port l24b of the substrate 120 to physically couple the substrate 120 to the base 160 and/or provide electrical coupling with the conductive layer 130.
  • the first fastener 1 lOa and the second fastener 110b do not protrude from a surface of the conductive layer 130 configured to interface with the user, in relation to user comfort considerations.
  • a surface (e.g., head region) of a fastener can be flush with a surface of conductive layer 130, in order to enable mating of two surfaces (e.g., co- planar surfaces, concentrically-oriented surfaces, other surfaces of the fastener(s) and of the conductive layer).
  • This configuration enhances the reliability of the interconnection between the fastener(s) and the conductive layer, in comparison to point coupling with a conductive element.
  • first fastener 1 lOa, second fastener 1 lOb e.g., first fastener 1 lOa, second fastener 1 lOb
  • its surrounding components e.g., the conductive layer 130
  • one or more portions of a head region of a fastener can be recessed within the conductive layer 130 and/or the substrate 120.
  • one or more regions of a fastener can protrude from a surface of the substrate 120 and/or conductive layer 130.
  • the material(s) of the fastener 1 lOa and/or the fastener 1 lOb can have a compressive strength, a shear strength, a tensile strength, a strength in bending, an elastic modulus, a hardness, a derivative of the above mechanical properties and/or other properties that enable structural support of the user and/or other system elements in various operation modes associated with use of the system 100.
  • the first fastener 1 lOa and/or the second fastener 1 lOb can function to transmit electrical signals detected from the body of the user 105 (e.g., through the feet of the user 105), where the electrical signals can be associated with electrocardiogram (ECG) signals and/or impedance plethysmography (IPG) signals. Additionally or alternatively, the electrical signals can include one or more of: electromyography signals, body
  • the material(s) of the first fastener 1 lOa and the second fastener 1 lOb can have a conductivity, resistivity, a derivative of the above electrical properties and/or other properties that enable electrical signal transmission from the conductive layer 130 to the electronics subsystem 150.
  • the material(s) of a first fastener 1 lOa and a second fastener 1 lOb can alternatively be selected to have desired electrical properties.
  • the fasteners can thus be composed of a conductive material such as a metal, a conductive polymer, or another conductive material, in order to facilitate signal transmission.
  • a conductive material such as a metal, a conductive polymer, or another conductive material.
  • one or more embodiments of the fasteners can be configured as a composite of multiple materials corresponding to different regions of a respective fastener, where the different regions and materials provide different functionalities.
  • the conductive material(s) of the fasteners can have a maximum resistivity of 5 Ohms.
  • the material of the fasteners can have any suitable resistivity.
  • a fastener e.g., fastener 2l0a, 210b, 2l0c, 2l0d
  • a fastener can include a body (e.g., body 212a, 2l2b, 212c, 2l2d) and a conductive cap (e.g., conductive cap 2l4a, 2l4b, 214c, 2l4d).
  • the body can be composed of a conductive material such as stainless steel, copper, and/or aluminum.
  • the conductive cap can be composed of a conductive polymer such as a rubber (e.g. carbon doped silicone) or a conductive plastic.
  • the conductive cap can be composed of another material such as a soft metal.
  • the conductive cap is made of a material that is softer than material of the substrate in order to provide electrical coupling to the conductive layer (e.g., through multiple points or a region of contact) and compliance to protect the substrate from the fastener (e.g., to provide shock absorption).
  • the conductive cap can be configured in a manner that can expose one or more portions of the fastener.
  • the conductive cap can expose a top portion of a core material of the fastener, can ensheathe a bottom of a head region of the fastener, or surround a bottom region and/or body of the fastener.
  • the different regions of the fasteners e.g., 2l0a, 21 Ob, 2l0c, 2l0d
  • the longitudinal cross section of the body (212a, 212b, 212c, and 212d) of a fastener shown in FIGS. 2A-2D is circular.
  • the longitudinal cross section of the body can be ellipsoidal, polygonal, or any other suitable shape.
  • the conductive cap e.g., conductive cap 214a, 214b, 214c, 2l4d
  • the cross section of the body (e.g., body 212a, 212b, 212c, and 212d) and the conductive cap e.g., conductive cap 214a, 214b,
  • 214c, 2l4d can be constant or variable along the length of the body.
  • a first embodiment of a fastener 2l0a includes a body 212a and a conductive cap 2l4a.
  • FIG. 2A is a first embodiment where the conductive cap 2l4a is coupled to an end region of the body 2l2a (e.g., an end region configured to interface with a conductive layer) of the fastener 2l0a.
  • the width of the conductive cap 2l4a is greater than the width of the body 2l2a.
  • FIG. 2B is a second embodiment of a fastener 210b including a conductive cap 214b ensheathing a body 212b of a fastener 210b.
  • the conductive cap 214b is coupled to an end region and extends at least partially down the longitudinal side of the body 2l2b of the fastener 2l0b.
  • the width of the conductive cap 2l4b is greater than the width of the body 212b.
  • FIG. 2C is a third embodiment of a fastener 2l0c with a conductive cap 2l4c and a body 2l2c.
  • the conductive cap 2l4c is coupled to the sides of the body 2l2c of the fastener 2l0c, under a head region of the fastener 2l0c.
  • the conductive cap 214c does not interface with the superior surface of the body 212c, such that the superior surface of the body 2l2c is uncovered by the conductive cap 2l4c and exposed.
  • the conductive cap 214c functions as a conical sheathing to couple the body 212c to surrounding components, as described below in relation to FIG. 7A.
  • FIG. 2D is a fourth embodiment of a fastener 2l0d including a conductive cap 2l4d and a body 2l2d.
  • the conductive cap 2l4d is coupled to the sides of the body 2l2d of the fastener 2l0d, under a head region of fastener 2l0d.
  • the body 2l2d is T-shaped (in a longitudinal cross section) and the conductive cap 2l4d is configured as a sheath below the flange of the body 212d to couple the body 212c to the surrounding components, as described below in relation to FIG. 7A. Additionally, the superior surface of the body 2l2d is uncovered by the conductive cap 2l4d and exposed.
  • FIGS. 2C and 2D thus depict fastener configurations that have mating contacting faces over a wide surface area, where coupling of an interface (e.g., self-centering counter-sunk interface of the substrate) with a compliant interface material between the conductive layer coupled to the substrate (described in more detail below) and a respective fastener body provide desired mechanical and electrical contact characteristics.
  • an interface e.g., self-centering counter-sunk interface of the substrate
  • a compliant interface material between the conductive layer coupled to the substrate (described in more detail below) and a respective fastener body provide desired mechanical and electrical contact characteristics.
  • a fastener can have characteristics (e.g., morphological characteristics, region-specific characteristics, electrical properties, mechanical properties, etc.) that vary depending upon the embodiment and requirements of the system 100.
  • characteristics e.g., morphological characteristics, region-specific characteristics, electrical properties, mechanical properties, etc.
  • FIG. 3 includes a top isometric view (left), a bottom isometric view (middle), and an elevation view (right) of an embodiment of a fastener 310 of a system 100 for health monitoring.
  • the fastener 310 shown in FIG. 3 has a length of 20.8 millimeters and 6 millimeters of M2.5 thread on the second end region 317 of the fastener 310.
  • the second end region 317 has a diameter of 2.3 millimeters and the first end region 315 has a diameter of 2.5 millimeters.
  • the fastener can have a length of 5-80 millimeters and a first end region 315 and/or a second end region 317 diameter of 0.5-15 millimeters.
  • the fastener 310 includes a conductive cap 314 with a thickness of 0.55 millimeters ensheathing the first end region 315 of the fastener 310. In alternative embodiments, however, the conductive cap 314 can have a thickness of 0.1-10 millimeters.
  • the fastener 110 including the conductive cap 314 can alternatively have any other suitable dimensions.
  • the fastener 310 described by FIG. 3 can have characteristics that vary depending upon the embodiment and the requirements of the system 100.
  • the fastener can have a conductive cap ensheathing both the first end region 315 and the second end region 317 functioning to seal at least a portion of the system, as described above.
  • the fastener 310 can omit some elements shown by FIG. 3.
  • the fastener 310 can have a conductive body 312 without a conductive cap 314 to simplify the system 100 for various purposes (e.g., simplify the manufacturing process, promote easy repair, etc.).
  • the system includes a substrate 120 that functions as a surface on which to bond the conductive layer 130.
  • the substrate 120 facilitates electrical signal transmission from the conductive layer 130 (described below), through the fasteners, and toward the electronics subsystem 150.
  • the substrate 120 can also function to mechanically support the weight of a user 105 in relation to weight measurements and other force-associated signal generation functionality.
  • the substrate 120 can additionally function to enable display (e.g., with integrated display elements, with transparent materials, with translucent materials, etc.) of information to the user 105 described in later sections.
  • the information can include information derived from analyses of signals generated by the system, instructions to the user, user verification information, or other types of information.
  • the substrate 120 includes a first broad surface 121 to which the conductive layer 130 is coupled.
  • the substrate 120 can also include a second broad surface to which one or more other elements of the system 100 are coupled, such as the base 160 described in more detail below.
  • the first broad surface 121 of the substrate 120 is planar, but can alternatively include recessed and/or protruding regions defined at the broad surface. Recessed and/or protruding regions of the first broad surface 121 can be configured to guide placement of the feet of the user and can include features that are complimentary to the soles of the user’s feet.
  • the substrate 120 can be composed of a single material or a composite material to provide suitable physical properties for support of the system 100 and the user 105.
  • the substrate 120 can be composed of glass (e.g., tempered glass, frosted glass, float glass, chemically strengthened glass).
  • the substrate can be composed of a metal, ceramic, natural stone, polymer, composite, or any combination of materials.
  • the material(s) of the substrate 120 can have a compressive strength, a shear strength, a tensile strength, a strength in bending, an elastic modulus, a hardness, a derivative of the above mechanical properties and/or other properties that provide adequate structural support in unloaded states and/or loaded states (e.g., with the user 105 standing on the substrate) in relation to various operation modes associated with use of the system 100.
  • the material(s) of the substrate 120 can have a conductivity, resistivity, a derivative of the above electrical properties and/or other properties that support electrical signal transmission from the user’s body to the electronics subsystem 150.
  • the substrate 120 can be composed of an insulative material to function to prevent bridging between selectively conductive regions (e.g., of the conductive layer 130 described in more detail below), and/or to prevent excess noise propagating through the system from the conductive layer 130.
  • the bulk material(s) of the substrate 120 can alternatively be selected to have desired electrical properties.
  • the material(s) of the substrate 120 can have a transparency or translucency suitable of conveying information to the user by way of an electronic display coupled to, positioned next to, or otherwise optically integrated with the substrate 120 in another manner.
  • the substrate 120 can be an opaque material.
  • the material(s) of the substrate 120 can also be fabricated to or otherwise include optical elements (e.g., lenses, mirrors, filters, waveguides, etc.) manipulate (e.g., reflect, scatter, guide, shape, etc.) light.
  • a schematic of a portion of an embodiment of a system 100 for health monitoring includes a substrate 420 coupled to a base 460 at one or more positions of its broad surfaces.
  • the substrate 420 is coupled to a conductive layer 430 and a base 460 by one or more fasteners, including fastener 410 shown in the partial cross section view of FIG. 4.
  • the fastener 410 shown in FIG. 4 is electrically coupled to the conductive layer 430 by a conductive cap 414.
  • the conductive lead 464 is electrically coupled to an electronics subsystem 450 which is housed in an internal cavity 466 of the device. According to the embodiment of FIG. 4, the substrate 420 functions to serve as a foundation or support for other system 100 components.
  • a conductive layer 130 is coupled to the substrate 120 and includes a set of subregions in electrical communication with the first fastener 1 lOa and the second fastener 1 lOb.
  • the conductive layer 130 provides an interface to the feet of the user 105 for electrical signal acquisition.
  • the conductive layer 130 has at least one broad surface that is planar (e.g., as a thin film coupled to or patterned onto the substrate 120).
  • the conductive layer can include recessed and/or protruding regions defined at the broad surface. Recessed and/or protruding regions of the broad surface can be configured to guide placement of the feet of the user and can include features that are complimentary to the soles of the user’s feet.
  • the conductive layer 130 can thus vary in shape and size.
  • the conductive layer 130 includes at least two electrically isolated subregions l32a and l32b, containing a first port l24a and a second port l24b, respectively, to enable distinct signal routing from individual feet of the user, through respective subregions, and through respective fasteners, as described above.
  • Various configurations of the conductive layer 130 are
  • FIG. 5 demonstrated by FIG. 5 described in greater detail below.
  • the conductive layer 130 is composed of a conductive material that is safe for user interaction.
  • the conductive layer 130 can be composed of waterproof or water resistant material (e.g., such that the user 105 can interact with the system directly after showering and/or the system can operate correctly within an environment with moisture).
  • the conductive layer 130 can be composed of a material that is resistant to rust and not easily corrodible as the system may be stored in a bathroom where it is exposed to steam from a shower or bath.
  • the conductive layer 130 can thus be composed of a single material or can be a composite material that provides suitable physical properties.
  • the material(s) of the conductive layer 130 can have a compressive strength, a shear strength, a tensile strength, a strength in bending, an elastic modulus, a hardness, a derivative of the above mechanical properties and/or other properties that enable structural support of the user and/or other system elements in various operation modes associated with use of the system 100.
  • the material of the conductive layer 130 can have a hardness above a certain threshold such that minor scratches do not affect the aesthetic integrity or functionality of the system 100.
  • the material(s) of the conductive layer 130 can have a conductivity, resistivity, a derivative of the above electrical properties and/or other properties that enable electrical signal transmission from the user 105 to the electronics subsystem 150.
  • the conductive layer 130 can be composed of a material (e.g., indium tin oxide, graphene, carbon nanotubes) with a desired pattern in relation to signal transduction through the system and/or the body of the user 105.
  • the bulk material(s) of the conductive layer 130 can alternatively be selected to have desired electrical properties.
  • the material(s) of the conductive layer 130 can have a transparency or translucency suitable of conveying information to the user by way of an electronic display coupled to, positioned next to, or otherwise optically integrated with the conductive layer 130 in another manner.
  • the material(s) of the conductive layer 130 can also be fabricated to include optical elements (e.g., lenses, mirrors, filters, waveguides, etc.) to manipulate (e.g., reflect, scatter, guide, shape, etc.) light.
  • the subregions l32a and l32b of the conductive layer 130 can be defined at the substrate in several configurations, some variations of which are shown in FIG. 5.
  • the conductive layer can be divided into a left subregion 532a associated with a left conductive cap of a set of conductive caps 5l4a and a right subregion 532a associated with a right conductive cap of a set of conductive caps 5l4a, where the left subregion is electrically separated from the right subregion (e.g., by a region that is not conductive or otherwise insulating).
  • the first embodiment (top left) includes two optional subregions, a left posterior subregion and a right posterior subregion.
  • the optional subregions can operate in conjunction with or in replacement of the left anterior subregion and/or the right anterior subregion.
  • electrical signals can be collected from the left posterior subregion and the right anterior subregion simultaneously.
  • electrical signals can be collected from pairs of left and right subregions 532a such as the left and right anterior subregions or the left and right posterior subregions simultaneously.
  • a second embodiment (top right) of FIG. 5 illustrates a conductive layer with a left subregion associated with a left conductive cap of a set of conductive caps 5l4b and a right subregion associated with a right conductive cap of a set of conductive caps 5l4b, where the left subregion is electrically separated from the right subregion (e.g., by a region that is not conductive).
  • the subregions 532b span the entire width of the system.
  • each subregion 532b can include more than one conductive cap in each region.
  • the optional conductive caps of the left and right subregions 532b can be located in any position within the subregions 532b and can operate in addition to or instead of the conductive caps 5l4b (e.g., if one cap fails or is otherwise compromised).
  • a third embodiment (bottom left) of FIG. 5 illustrates a conductive layer with three left subregions 532c each associated with a conductive cap of a set of conductive caps 5l4c and three right subregions 532c each associated with a conductive cap of a set of conductive caps 5l4c, where all of the subregions are electrically isolated (e.g., by a region that is not conductive).
  • the subregions 532c can be used simultaneously for generating electrical signals from each pair of left and right foot portions or for targeting signal generation of specific portions (e.g., anterior, middle, and posterior portions) of each foot.
  • a fourth embodiment (bottom right) of FIG. 5 illustrates a conductive layer with a left subregion 532d associated with a left conductive cap of a set of conductive caps 5l4d and a right subregion 532d each with a conductive cap of a set of conductive caps 5l4d.
  • the subregions 532d only span a portion of the width of the system and can be used for extracting electrical signals from a specific targeted region of the user feet (e.g., central region).
  • FIG. 5 illustrates four embodiments of the system, but is not exclusive or representative of every embodiment of the system.
  • the system can include a larger number of subregions than the amount shown by FIG. 5 for generating signals from multiple regions of each foot.
  • the subregions can also be oriented differently, such as rotating the subregions 90 degrees or adjusting the shape and size of the subregions to satisfy design criteria (e.g., ease of manufacturing, ease of use, etc.).
  • FIG. 6 is a schematic of a top view of a specific embodiment of a system for health monitoring.
  • the embodiment in FIG. 6 illustrates a conductive layer 630 with four electrically isolated subregions 632 each with one conductive cap 614.
  • Each subregion 632 of the conductive layer 630 has a rectangular footprint when the broad surface is projected onto a horizontal plane, where the rectangular footprint has rounded edges.
  • the subregions 632 of the conductive layer 630 can alternatively have any other suitable footprint.
  • the subregions 632 can be one or more of: a circle, a square, or a triangle when the broad surface is projected onto a horizontal plane.
  • the conductive layer 630 can have a width from 1-50
  • the conductive layer 630 can alternatively have any other suitable dimensions.
  • the embodiment in FIG. 6 includes a display 670 embedded in the substrate 620.
  • the display 670 can also be embedded within the base, as described in more detail below.
  • the display 670 can be contained within, coupled to, or protrude from a different or additional component of the system. For instance, a portion of the display 670 can be coupled to the substrate 620 and/or a portion can be coupled to the conductive layer 630. The display 670 can also protrude from the surface of the conductive layer 630 and/or the substrate 620.
  • the user 605 can interact with different subregions of the conductive layer 630 by standing on the device and having a left foot contact one or more subregions and having a right foot contact one or more subregions. As such, the user 605 can place a portion of his/her foot each subregion 632. In the embodiment of FIG. 6, the user 605 can place the anterior portion of his/her left foot in the top left subregion 632 and the anterior portion of his/her right foot in the top right subregion 632. The user 605 can place the posterior portion (e.g., heel portion) of his/her left foot in the bottom left subregion 632 and the posterior portion (e.g., heel portion of his/her right foot in the bottom right subregion 632.
  • the posterior portion e.g., heel portion
  • each subregion 632 can generate an electrical signal from the corresponding portion of the user foot.
  • the system can be configured to detect placement of a left foot at a respective subregion 632 (e.g., based upon pressure distributions detected by the force sensors, based upon contact through capacitive sensing, based upon light transmission patterns through the substrate, etc.) and a right foot at a respective subregion 632 and to properly generate or determine an electrical signal based upon the placements of the left and the right foot.
  • the device can measure biological signals from the user 605 as described.
  • the electronics subsystem 150 includes at least one electrical signal channel 152 and at least one force signal channel 153.
  • the force signal channel 153 receives a signal from a set of force sensors 140 in order to transmit information about a user 105, in response to forces generated within or by the user’s body when the user interfaces with the system 100.
  • the force signal channel 153 can relay metrics such as body weight,
  • the electrical signal channel receives an electrical signal transmitted from the user 105 by a fastener 110.
  • the electrical signal channel 152 can transmit both cardiac and non-cardiovascular metrics including pulse rate, heart rate variability (HRV), body impedance, and cardiac waveforms such as impedance
  • IPG plethysmograph
  • ECG electrocardiograph
  • the cardiac waveforms can be analyzed by the networked analysis engine 159 or another system not shown (e.g., firmware) to evaluate cardiovascular health parameters.
  • firmware e.g., firmware
  • cardiovascular health parameters can include systolic time intervals such as pre-ejection period (PEP), left ventricular ejection time (LVET), pulse transit time (PTT), and pulse arrival time (PAT).
  • PEP pre-ejection period
  • LVET left ventricular ejection time
  • PTT pulse transit time
  • PAT pulse arrival time
  • the electronics subsystem 150 may also evaluate the environmental context of the device described in greater detail below.
  • the electronics subsystem 150 can have a format that includes different materials and/or properties.
  • the electronics subsystem 150 can include a printed circuit board (PCB), where the PCB include materials with different characteristics (e.g. flexible, rigid, ductile, brittle, etc.).
  • the PCB can be single sided, double sided, or multi-layer.
  • the material of the PCB can include a conductive component such as copper and a substrate composed of a dielectric composite material.
  • the electronics subsystem can be composed of other suitable materials.
  • the electronics subsystem 150 can include circuitry characteristics configured to improve function in relation to processing of multiple types of signals, noise mitigation due to different electrical and/or mechanical factors, signal transmission, and/or other factors.
  • the electronics subsystem 150 can include configurations where analog and/or digital components associated with different types of signals are separated from each other in relation to prevention of interference.
  • the electronics subsystem 150 can include elements that promote isolation or mitigation of electrical noise sources.
  • the electronics subsystem 150 can include elements that promote isolation or mitigation of mechanical or vibrational noise sources (e.g., with mechanical noise isolation elements coupled to the sensor(s), with vibration dampeners coupled to the substrate, with vibration dampeners coupled to the base, etc.).
  • the electronics subsystem 150 can include architecture that promotes efficient signal transmission characteristics (e.g., can include architecture with a specified density of interconnects or distance between electronics
  • the material(s) of the electronics subsystem 150 can have a compressive strength, a shear strength, a tensile strength, a strength in bending, an elastic modulus, a hardness, a derivative of the above mechanical properties and/or other properties that enable structural support of the user and/or other system elements in various operation modes associated with use of the system 100.
  • the materials chosen can satisfy a variety of characteristics that are relevant to electronics.
  • the material(s) of the electronics subsystem 150 can have a conductivity, resistivity, a derivative of the above electrical properties and/or other properties that the electronics subsystem 150 to receive electrical signal transmission.
  • an electronics subsystem 450 is electrically coupled to a conductive lead 464 in order to receive electrical signals from a fastener 410.
  • the fastener receives and transmits an electrical signal from a conductive cap 414 to the conductive lead 464.
  • the conductive lead can also have a conductivity, resistivity, a derivative of the above electrical properties to transmit an electrical signal from the fastener 410 to the electronics subsystem 450.
  • the electronics subsystem 150 is positioned inferior to the conductive surface 120 to protect the electronics subsystem 150 from user 105 interference or other factors.
  • an electronics subsystem 450 is contained within an internal cavity 466.
  • the internal cavity 466 can be an internal cavity of one or more of: a base 460 or the substrate 460.
  • the base 460 can be composed of an insulative material to function to prevent excess noise propagating through the system from the conductive layer 130.
  • the base 460 can also serve to prevent undesired signal interaction between the fastener 410 and other system components (e.g., a power subsystem, the substrate 420).
  • the electronics subsystem can be coupled to the conductive layer 460 or an exterior surface of the system in another manner.
  • the subsystem 450 can be sealed from external dangers such as water, dirt, or other environmental conditions that may cause damage to the electrical subsystem 450.
  • a conductive layer 730 is coupled to a conductive cap 714 and the conductive cap comprises a compliant and conductive polymer material that cooperates with the substrate 720 to form a seal 770.
  • the seal 770 prevents water and other fluids or particles from flowing towards an electronics system housed below the conductive layer 130.
  • the seal 770 formed by the conductive cap 714 composed of a compliant material also functions to interface components of the system.
  • the conductive cap 714 provides contouring between the conductive layer 730, the substrate 720, and the fastener 710. As the fastener 710 is tightened, the conductive cap 714 fills the gaps between the fastener 710, the conductive layer 730, and the substrate 720 in order to maximize the conductive contact surface area.
  • the conductive cap 714 also provides a mechanical connection to attach the base 760 to the substrate 720. As such, the conductive cap 714 functions as a shock absorber between the substrate 720 and the fastener 710, preventing damage to the substrate 720 or the conductive layer 730.
  • the system configuration shown in FIGS. 7A-7C includes mating contacting faces that provide mechanical and electrical contact functionality, where coupling of an interface (e.g., self-centering counter-sunk interface of the substrate 720) with a compliant interface material of the conductive cap 714 between the conductive layer 730 coupled to the substrate 720 and a respective body of a fastener 710 provides a reliable connection (in terms of electrical contact) and allows for some shock absorption.
  • an interface e.g., self-centering counter-sunk interface of the substrate 720
  • a compliant interface material of the conductive cap 714 between the conductive layer 730 coupled to the substrate 720 and a respective body of a fastener 710 provides a reliable connection (in terms of electrical contact) and allows for some shock absorption.
  • the system can also include or otherwise receive signals from additional sensors (e.g., temperature sensors, light sensors, moisture sensors), where additional sensors can be coupled to appropriate portions of the system.
  • additional sensors e.g., temperature sensors, light sensors, moisture sensors
  • the system can include temperature sensors that function to protect the system and/or to provide contextual data that can be processed, with other biometric signals, to analyze health states of the user. If the temperature is too low or too high for safe and effective operation, the system can power off or send warning message to a display (e.g., such as display 670 shown in FIG. 6).
  • a light sensor can function to adjust the brightness of a display such that the display is visible in different background lighting.
  • the system may also include a moisture sensor to evaluate the humidity. The moisture, temperature and other environmental signals can be evaluated and interpreted to relate the environmental context data to the user data.
  • FIGS. 1A and 1B can be assembled according to one or more of embodiments.
  • FIGS. 7A-7C and FIGS. 8A-8H described below illustrate the assembly of one embodiment of the system 100.
  • the system 100 can be assembled in any suitable manner.
  • FIG. 7A is a cross section view of a portion of an embodiment of a system.
  • FIG. 7B is an isometric view of a cross section of an expanded portion of the embodiment of the system shown in FIG. 7A, from a top right view.
  • a broad surface of a conductive layer 730 is coupled to a substrate 720 which is coupled to a base 760.
  • a port 724 is shown to pass through the conductive layer 730, the substrate 720 and the base 760.
  • FIG. 7C is a similar isometric view of a system from a top right view.
  • FIG. 7C includes a fastener 710 inserted into the port 724. The fastener 710 is coupled to an interior region of the substrate 720 and the base 760.
  • the fastener 710 and the conductive cap 714 can prevent substances such as water or dust from entering through the port 724.
  • the conductive cap 714 forms a conical sheathing around a region of the fastener 710, allowing for compliance between components.
  • FIG. 8A is an isometric view, from the top right, of an embodiment of a system described in relation to FIGS. 7B and 7C.
  • the system has a height of 3.1 centimeters, a width of 31.1 centimeters, and a length of 40.6 centimeters.
  • the device can have a length of 20- 100 centimeters, width of 10-80 centimeters, and a height of 1-15 centimeters.
  • the system can have any suitable dimensions.
  • the system weighs 7.5 pounds, but the system can have a weight of 2-20 pounds. Alternatively, the system can have a weight of any suitable amount.
  • FIGS. 8B-H show different views of the embodiment shown in FIG. 8 A. As such, the dimensions of the system shown in FIGS 8A-H can be considered consistent for the purposes of illustration.
  • FIG. 8B is an isometric view, from the bottom right, of the embodiment of the system shown in FIG. 8A.
  • the base 860 has an area large enough to provide structural support for the user and the system in various operation modes.
  • Four feet 869 are coupled to or extend from the base 860.
  • the feet 869 provide an interface between the ground and the force sensor(s).
  • the base 860 may have two or more feet 869 of various shapes and sizes or may not have feet 869.
  • FIG. 8C is a top view of the embodiment of the system shown in FIG. 8A.
  • the embodiment includes four conductive caps 814 electrically coupled to the conductive layer 830.
  • the conductive layer includes four electrically isolated subregions 832 illustrated by dashed lines. The conductive layer appears continuous and symmetric to the user across the longitudinal axis to increase aesthetic appeal.
  • FIG. 8D is a right side view of the embodiment of the system shown in FIG. 8A.
  • FIG. 8E is a front view of the embodiment of the system shown in FIG. 8A. Shown in FIG. 8D and 8E, the fastener 810 couples the inferior surface of the conductive layer 810 to the superior surface of the substrate 820. The inferior surface of the substrate 820 is coupled to the superior surface of the base 860.
  • the base includes a front left and right foot 869 and a back left and right leg foot. The feet 869 provide an interface between the base 860 and the ground that provides structural support for the user in various operation modes.
  • FIG. 8F is a bottom view of the embodiment of the system shown in FIG. 8A.
  • the system is powered by four AA batteries contained in a battery compartment 868 positioned within the base of the system.
  • the battery compartment 868 is located in the center of the bottom of the system.
  • the battery compartment 868 could be located in another region of the system and/or could be coupled to the base 860 or other layer of the system.
  • the system can also be alternatively powered by a rechargeable battery or other form of power through an outlet.
  • FIG. 8F includes four feet 869, a left and right posterior foot 869and a left and right anterior foot 869. The feet 869 allow the system to be placed on the ground such that the user can stand on the system as directed and the system will remain physically balanced.
  • FIG. 8G is a left side view of the embodiment of the system shown in FIG. 8A and FIG. 8H is a back view of the embodiment of the system shown in FIG. 8A.
  • a fastener 810 couples the inferior surface of the conductive layer 810 to the superior surface of the substrate 820.
  • the inferior surface of the substrate 820 is coupled to the superior surface of the base 860.
  • the base includes a front left and right foot 869 and a back left and right foot 869.
  • the feet 869 provide an interface between the base 860 and the ground that provides structural support for the user in various operation modes.
  • FIG. 9 illustrates operation modes of a system for health monitoring, in accordance with one or more
  • FIG. 9 includes three modes of the system: a signal generation mode 980, a content provision mode 990, and a content storage mode 995.
  • the system operates in the signal generation mode 980 when the user 905 interacts with the system.
  • the user interface in the signal generation mode 980, includes a conductive layer 930, a conductive cap 914, a base 960 and a substrate 920.
  • the conductive layer 930 facilitates formation of an electrical circuit through the body of the user, and receives bioelectrical signals from the user 905.
  • the conductive cap 914 transmits the signal to the electronics subsystem 950.
  • a set of force sensors 940 receive a force signal from the interaction and transmit the signal to the electronics subsystem 950.
  • the electrical signal and force signal received by the electronics subsystem 950 are processed in the signal generation mode 980 by the networked analysis engine 959.
  • the data interpreted by the networked analysis engine 959 can include pulse rate, heart rate variability (HRV), body impedance, and cardiac waveforms (e.g. plethysmograph (IPG),
  • the networked analysis engine 959 can determine systolic time intervals such as pulse transit time (PTT), pre-ejection period (PEP), pulse arrival time (PAT), and left ventricular ejection time (LVET) from the cardiac waveforms.
  • the non-cardiovascular metrics from the force sensors evaluated by the networked analysis engine 959 can include body weight and balance analysis.
  • the networked analysis engine 959 can also process and evaluate environmental context data described above.
  • the content provision mode 990 data interpreted by the networked analysis engine 959 is transmitted to the electronics subsystem, which generates instructions for rendering information derived from outputs of the networked analysis engine 959 at the display.
  • the display 970 being electrically coupled to the electronics subsystem 950, renders information derived from data processed by the networked analysis engine 959 such as plethysmograph (IPG), a ballistocardiograph (BCG), an electrocardiograph (ECG), weight, and pulse.
  • IPG plethysmograph
  • BCG ballistocardiograph
  • ECG electrocardiograph
  • weight weight
  • pulse pulse
  • the networked analysis engine 959 can also be in communication with a user device 908 in order to store the data in a content storage mode 995. The user can access his/her data in order to track changes in user health and promote early detection of health related issues.
  • a software module is implemented with a computer program product comprising a computer-readable medium containing computer program code, which can be executed by a computer processor for performing any or all of the steps, operations, or processes described.
  • Embodiments may also relate to an apparatus for performing the operations herein.
  • This apparatus may be specially constructed for the required purposes, and/or it may comprise a general-purpose computing device selectively activated or reconfigured by a computer program stored in the computer.
  • a computer program may be stored in a non-transitory, tangible computer readable storage medium, or any type of media suitable for storing electronic instructions, which may be coupled to a computer system bus.
  • any computing systems referred to in the specification may include a single processor or may be architectures employing multiple processor designs for increased computing capability.
  • Embodiments may also relate to a product that is produced by a computing process described herein.
  • a product may comprise information resulting from a computing process, where the information is stored on a non-transitory, tangible computer readable storage medium and may include any embodiment of a computer program product or other data combination described herein.

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  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)

Abstract

L'invention concerne un dispositif d'acquisition simultanée de signaux d'électrocardiogramme (ECG), de signaux de pléthysmogramme d'impédance (IPG), de signaux de ballistocardiogramme (BCG) et de mesures de poids à travers les pieds d'un utilisateur. Le dispositif comprend une surface conductrice d'électricité pour une mise en contact avec les pieds de l'utilisateur et le support du poids de l'utilisateur lors de l'utilisation. Le dispositif comprend également un ou plusieurs capteur(s) de force pour détecter des forces et des variations de force à travers la surface conductrice d'électricité, un dispositif électronique pour traiter des signaux électriques générés et/ou détectés à partir de la surface conductrice d'électricité, des signaux provenant de l'ensemble de capteurs de force, et un socle contenant le dispositif électronique. Le socle est structurellement couplé à la surface conductrice d'électricité par un ensemble d'éléments de fixation conducteurs qui transmettent des signaux de la surface conductrice d'électricité au dispositif électronique. Le dispositif peut également comprendre un dispositif d'affichage intégré pour fournir une information de santé à l'utilisateur.
PCT/US2019/056163 2018-10-17 2019-10-14 Dispositif de surveillance de la santé cardiovasculaire Ceased WO2020081473A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16/163,354 2018-10-17
US16/163,354 US11197628B2 (en) 2015-07-10 2018-10-17 Cardiovascular health monitoring device

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WO2020081473A1 true WO2020081473A1 (fr) 2020-04-23

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030220553A1 (en) * 2000-11-16 2003-11-27 Jens Axelgaard Dual element sensor medical electrode
US20060115857A1 (en) * 1997-05-14 2006-06-01 Keensense, Inc. Molecular wire injection sensors
US20130131484A1 (en) * 2006-06-08 2013-05-23 Suunto Oy Snap and electrode assembly for a heart rate monitor belt
US20180199824A1 (en) * 2015-07-10 2018-07-19 Bodyport Inc. Device for measuring biological signals

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060115857A1 (en) * 1997-05-14 2006-06-01 Keensense, Inc. Molecular wire injection sensors
US20030220553A1 (en) * 2000-11-16 2003-11-27 Jens Axelgaard Dual element sensor medical electrode
US20130131484A1 (en) * 2006-06-08 2013-05-23 Suunto Oy Snap and electrode assembly for a heart rate monitor belt
US20180199824A1 (en) * 2015-07-10 2018-07-19 Bodyport Inc. Device for measuring biological signals

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