WO2017043595A1 - センサーシート - Google Patents
センサーシート Download PDFInfo
- Publication number
- WO2017043595A1 WO2017043595A1 PCT/JP2016/076503 JP2016076503W WO2017043595A1 WO 2017043595 A1 WO2017043595 A1 WO 2017043595A1 JP 2016076503 W JP2016076503 W JP 2016076503W WO 2017043595 A1 WO2017043595 A1 WO 2017043595A1
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- WIPO (PCT)
- Prior art keywords
- sheet
- sensor
- sensor sheet
- terminal
- skin
- Prior art date
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-
- 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]
-
- 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
- A61B5/251—Means for maintaining electrode contact with the body
- A61B5/257—Means for maintaining electrode contact with the body using adhesive means, e.g. adhesive pads or tapes
-
- 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
-
- 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
- A61B5/251—Means for maintaining electrode contact with the body
- A61B5/257—Means for maintaining electrode contact with the body using adhesive means, e.g. adhesive pads or tapes
- A61B5/259—Means for maintaining electrode contact with the body using adhesive means, e.g. adhesive pads or tapes using conductive adhesive means, e.g. gels
-
- 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
- A61B5/271—Arrangements of electrodes with cords, cables or leads, e.g. single leads or patient cord assemblies
-
- 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]
- A61B5/282—Holders for multiple electrodes
-
- 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
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
-
- 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
- A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
- A61B5/6879—Means for maintaining contact with the body
- A61B5/688—Means for maintaining contact with the body using adhesives
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
- A61B2560/04—Constructional details of apparatus
- A61B2560/0406—Constructional details of apparatus specially shaped apparatus housings
- A61B2560/0412—Low-profile patch shaped housings
-
- 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
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- 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
- A61B2562/16—Details of sensor housings or probes; Details of structural supports for 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
- A61B2562/16—Details of sensor housings or probes; Details of structural supports for sensors
- A61B2562/164—Details of sensor housings or probes; Details of structural supports for sensors the sensor is mounted in or on a conformable substrate or carrier
-
- 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
- A61B2562/22—Arrangements of medical sensors with cables or leads; Connectors or couplings specifically adapted for medical sensors
- A61B2562/221—Arrangements of sensors with cables or leads, e.g. cable harnesses
-
- 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
- A61B2562/22—Arrangements of medical sensors with cables or leads; Connectors or couplings specifically adapted for medical sensors
- A61B2562/221—Arrangements of sensors with cables or leads, e.g. cable harnesses
- A61B2562/222—Electrical cables or leads therefor, e.g. coaxial cables or ribbon cables
Definitions
- the present invention relates to a sensor sheet for measuring biological information.
- an electrode is provided on a sheet-like base material having flexibility that can follow the movement of a living body, and the electrode is watertight by the sheet-like base material. By encircling, the electrocardiogram can be measured while taking a bath in addition to walking, eating and sleeping.
- a biological information measuring device typified by a Holter electrocardiograph
- the biological information is continuously applied to the body surface for a long time. It is necessary to attach a sensor sheet.
- a sensor sheet For example, in the follow-up after ablation treatment, it is assumed that continuous data over two weeks or more is acquired, and in this case, it is desirable to keep the sensor sheet attached to the body surface of the subject over two weeks or more. .
- the sensor sheet is continuously pasted over a long period of time, the sheet is peeled off, the sheet is wrinkled, and the body surface becomes ugly. Therefore, the sensor sheet is generally pasted every day or every few days. For this reason, the data is temporarily interrupted by the replacement. In addition, there is a problem in that it takes time to reattach or wastes the sheet provided with the electrode every time it is attached. In addition, since the pasting position is shifted before and after the pasting, there is a possibility that the acquired data may be affected by the pasting. Therefore, it is preferable that the number of replacements is as small as possible.
- the present invention has been made in consideration of the above points, and provides a sensor sheet that can reduce a subject's itch when it is stuck for a long time without degrading measurement accuracy.
- One aspect of the sensor sheet of the present invention is: A sensor sheet for measuring biological information, A first sheet attached to the subject's skin; A second sheet adhered to the surface side of the first sheet; A measuring element provided in the area of the second sheet; Comprising The second sheet is thicker than the first sheet.
- the present invention it is possible to realize a sensor sheet that can reduce a subject's itch when it is stuck for a long time without degrading measurement accuracy.
- FIG. 1 is an exploded perspective view showing the overall configuration of a sensor sheet according to Embodiment 1.
- FIG. The top view which shows the state which attached the terminal to the sensor sheet of Embodiment 1. It is a figure which shows the structure of a terminal, FIG. 3A is a perspective view, FIG. 3B is a side view, FIG. 3C is a bottom view It is sectional drawing with which it uses for description of the attachment structure of the terminal to a sensor sheet, FIG. 4A is sectional drawing before attachment, FIG. 4B is sectional drawing after attachment. It is a perspective view with which it uses for description of the attachment structure of the terminal for attaching to a sensor sheet
- the process leading to the present invention will be described.
- the inventors of the present invention have studied in detail the cause of itching when a sensor sheet is attached to the skin.
- the inventors comprehensively studied the material, thickness, and arrangement of the sensor sheet that can suppress stagnation while suppressing a decrease in measurement accuracy.
- the sheet thickness at the edge of the sheet is particularly reduced. In this way, by reducing the sheet thickness at the sheet edge, it is possible to prevent stagnation even when pasted for a long time.
- the sheet can flexibly follow it at the sheet edge, so that the sheet is less likely to become wrinkled at the sheet edge.
- Sheet peeling at the sheet edge is prevented.
- the peeling of the sheet edge is prevented, and the peeling of the entire sheet is also suppressed. That is, when the sheet is peeled off, in general, it is often peeled off from the edge portion, but this is effectively prevented by adopting the configuration of the present invention.
- polyurethane having excellent moisture permeability is used as the material of the sheet. Thereby, the rash by sweating can be suppressed and the occurrence of itching can be further suppressed.
- the sheet thickness of the portion to which the electrode, wiring, gel, or terminal is attached is made thicker than the sheet thickness of the edge portion. Thereby, tearing of the sheet can be prevented and such components can be stably held.
- the sensor sheet of the present invention is a sensor sheet that can realize prevention of stagnation, prevention of peeling, and stable holding of mounted parts at once.
- FIG. 1 is an exploded perspective view showing the overall configuration of a sensor sheet according to Embodiment 1 of the present invention.
- FIG. 2 is a top view showing a state in which the terminal is attached to the sensor sheet. The sensor sheet is used by being attached to the chest of the subject in order to acquire an electrocardiogram.
- the terminal attached to the sensor sheet is a recording terminal in which a memory and a coin battery are accommodated inside the case
- the terminal attached to the sensor sheet is not limited to this.
- it may be a terminal that has a wireless transmission unit inside the case and wirelessly transmits biological information measured by a sensor sheet.
- the terminal may be a telemeter, for example.
- the sensor sheet 100 is accommodated between the liner 210 and the top separator 220 before use.
- the liner 210 and the top separator 220 are peeled off and attached to the chest, and the terminal 300 is attached to the front side as shown in FIG.
- the sensor sheet 100 includes a lower sheet (first sheet) 110 and an upper sheet (second sheet) 120. Between the lower sheet 110 and the upper sheet 120, an electric circuit unit 130 as a measurement element is disposed. Adhesive layers are provided on the skin-side surfaces of the lower sheet 110 and the upper sheet 120, whereby the lower sheet 110 is applied to the skin of the subject and the upper sheet 120 is applied to the surface side of the lower sheet 110. It comes to wear. The electric circuit unit 130 is held between the lower sheet 110 and the upper sheet 120 by attaching the upper sheet 120 to the surface side of the lower sheet 110.
- the area of the upper sheet 120 is smaller than the area of the lower sheet 110.
- the area of the upper sheet 120 is large enough to cover the electric circuit unit 130.
- FIG. 2 showing the state in which the upper sheet 120 is attached to the lower sheet 110, in the sensor sheet 100, the electric circuit unit 130 is completely covered by the upper sheet 120, while being entirely covered.
- a peripheral edge portion 110a including only the lower sheet 110 is formed.
- the electric circuit unit 130 includes a tongue piece 131, a plurality of wires 132 extending from the tongue piece 131, and a plurality of electrodes 133 formed at the ends of the wires 132.
- a hole 111 is formed at a position of the lower sheet 110 corresponding to each electrode 133, and a gel 134 is disposed at a position corresponding to each hole 111.
- the electrode 133 is electrically connected to the skin via the gel 134, and the conductivity between the skin and the electrode 133 is increased by the gel 134.
- a connector 140 connected to the terminal 300 is provided on the surface side of the tongue piece 131.
- a hole 121 is formed at a position of the upper sheet 120 corresponding to the tongue piece 131.
- a hole 221 is formed at the position of the top separator 220 corresponding to the connector 140. As a result, the connector 140 is exposed to the surface side of the top separator 220 through the hole 221.
- the lower sheet 110 has a base material made of polyurethane and an adhesive layer formed on the skin side surface of the base material.
- the upper sheet 120 includes a base material made of polyurethane and an adhesive layer formed on the skin side surface of the base material.
- polyurethane has the property of allowing vapor to permeate but not retaining water (that is, small particles such as steam are permeated, but large masses such as accumulated water and water droplets do not permeate).
- water When entering, there is almost no penetration of water from the surface side of the upper sheet 120 to the skin side. Therefore, by preventing water from entering the wiring 132 and the electrode 133 from the surface side of the upper sheet 120, it is possible to prevent the electrical circuit from being short-circuited even if the subject enters the bath with the sensor sheet 100 attached.
- both the lower sheet 110 and the upper sheet 120 are made of polyurethane.
- the upper sheet 120 may be made of a material other than polyurethane.
- various materials other than polyurethane can be used as long as moisture can be prevented from entering such that the wiring 132 and the electrode 133 are short-circuited while permeating moisture due to perspiration.
- materials For example, a foamed polyethylene or a nonwoven fabric material may be used.
- polyurethane alone, and it may be made of a material mainly composed of polyurethane.
- polyurethane is the most excellent material for the lower sheet 110 and the upper sheet 120.
- the lower sheet 110 and the upper sheet 120 are required to have, for example, almost no water permeation from the surface side of the upper sheet 120 to the skin side when taking a bath (that is, waterproof), and for a long time. It can be used without breaking (that is, durability), can flexibly follow the movement of the skin (that is, stretchability), and can be thinned.
- Polyurethane is excellent in all of waterproofness, durability, stretchability, and thinness.
- foamed polyethylene has difficulty in being durable and thin. Nonwoven fabrics are difficult to waterproof.
- the thickness of the lower sheet 110 in the present embodiment is 15 [ ⁇ m]. This thickness is very thin as compared with the conventional sheet of this type having a thickness of about 50 [ ⁇ m].
- the upper sheet 120 is thicker than the lower sheet 110. In the case of the present embodiment, the thickness of the upper sheet 120 is 50 [ ⁇ m].
- the thickness of the peripheral edge portion 110a made only of the lower sheet 110 is as thin as 15 [ ⁇ m]
- the central region that holds the electric circuit portion 130 is The total thickness of the lower sheet 110 and the upper sheet 120 is 65 [ ⁇ m].
- the upper sheet 120 may be thicker than the lower sheet 110.
- the upper sheet 120 may have a higher strength than the lower sheet 110.
- the upper sheet 120 may be made of a material having higher strength than the lower sheet 110.
- the reason why the conventional sheet thickness is thick including the peripheral part is that priority is given to suppressing damage to the sheet and holding the electric circuit unit 130 as a measurement element with high reliability, and it is continuous for a long time. This is because sufficient consideration has not been given to the occurrence of itchiness.
- the material and thickness of the lower sheet 110 were examined under the point that the stagnation can be significantly reduced if the peripheral edge portion 110a follows the skin.
- the lower sheet 110 is made of polyurethane in consideration of moisture permeability, if the thickness of the lower sheet 110 is 20 [ ⁇ m] or less, it will itch even if it is continuously applied for about two weeks. It turns out that it is hard to occur. That is, in the present embodiment, it is proposed that the lower sheet 110 is made of polyurethane and the thickness thereof is 20 [ ⁇ m] or less.
- the lower sheet 110 very thin as 20 [ ⁇ m] or less in this way, in addition to being able to suppress itching, there is also an advantage that it is possible to realize a sheet that is difficult to peel off because of good followability to the skin. That is, in most cases, peeling of the sheet occurs from the peripheral portion, and this can be suppressed by the configuration of the present embodiment.
- the wiring 132 and the electrode 133 are each formed by forming a metal layer on a base material made of PET (polyethylene terephthalate) or PEN (polyethylene naphthalate).
- the thickness of the substrate is, for example, about 50 to 100 [ ⁇ m].
- the wiring 132 and the electrode 133 may be formed directly on the upper sheet 120 or the lower sheet 110, but in the case of this embodiment, the wiring 132 and the electrode 133 are made of PET (polyethylene terephthalate) or PEN (polyethylene naphthalate). By being formed on the substrate, it is possible to prevent the occurrence of disconnection or the like.
- the wiring 132 has a pattern including a meandering pattern. Thereby, the followability of the wiring 132 with respect to the movement of the body surface (skin) is improved. As a result, the followability to the skin can be improved in the region of the electric circuit portion 130 in addition to the peripheral edge portion 110a, so that itching can be further suppressed.
- the wiring 132 does not necessarily meander, and the wiring 132 may be formed in a gentle curve or straight line.
- the tongue piece 131 is thicker than the base material of the wiring 132 and the electrode 133.
- the terminal 300 is detachably attached to the connector 140 provided on the tongue piece 131. A structure for attaching the terminal 300 to the connector 140 will be described later.
- the liner 210 is peeled off, and the sensor sheet 100 is pressed against the predetermined position on the chest together with the top separator 220, so that the lower sheet 110 is placed on the predetermined position on the chest. Adhere.
- the lower sheet 110 can be firmly adhered to the skin of the subject.
- an adhesive layer having an adhesive strength that is weak enough to hold the sensor sheet 100 is formed on the lower surface of the top separator 220.
- top separator 220 By providing the top separator 220, it is possible to prevent the peripheral edge portion 110a of the very thin lower sheet 110 from curling.
- a hole 221 for avoiding the connector 140 is formed in the center of the top separator 220. The user pinches the vicinity of the hole 221 with a finger and opens the top separator 220 on both sides like a double door, thereby peeling the top separator 220 from the sensor sheet 100.
- the top separator 220 is not peeled from the edge side of the sensor sheet 100 but from the center side to the edge side, so that the lower sheet 110 can be pulled by the top separator 220 and the edge can be curled and wrinkled. Can be reduced.
- the user After attaching the sensor sheet 100 to the subject's chest in this way, the user attaches the terminal 300 to the connector 140 of the sensor sheet 100.
- FIG. 3 is a view showing a configuration of the terminal 300
- FIG. 3A is a perspective view
- FIG. 3B is a side view
- FIG. 3C is a bottom view.
- the terminal 300 has a built-in coin battery and memory.
- the terminal 300 starts an electrocardiogram measurement / recording operation and records an electrocardiogram based on an electrocardiogram signal from the sensor sheet. Since this measurement / recording operation is a known technique, a description thereof is omitted here.
- an attachment portion 310 that is detachably attached to a connector 140 provided on the sensor sheet 100 is provided on the back surface of the terminal 300.
- FIG. 4 is a cross-sectional view for explaining the structure for attaching the terminal 300 to the sensor sheet 100.
- 4A is a cross-sectional view before mounting
- FIG. 4B is a cross-sectional view after mounting.
- FIG. 5 is a perspective view for explaining an attachment structure of the terminal 300 to the sensor sheet 100
- FIG. 5A is a perspective view before attachment
- FIG. 5B is a perspective view after attachment.
- the connector 140 provided on the sensor sheet 100 side has an oval packing 141 in plan view.
- the end of the wiring 132 whose other end is connected to the electrode 133 is arranged.
- an insertion port 311 having a size that allows the packing 141 to enter is formed on the back surface of the terminal 300.
- a spring probe 312 and a USB terminal 313 are disposed in the insertion port 311.
- a USB terminal 313 is also provided in the insertion port 311. Therefore, when the terminal 300 is attached to the sensor sheet 100 and an electrocardiogram is measured, the USB terminal 313 is used. The terminal 313 becomes unavailable. Thereby, it is possible to reliably eliminate the possibility of electric shock due to an external electronic device being connected to the USB terminal 313 during measurement of the electrocardiogram. That is, in the present embodiment, the electrocardiogram measurement terminal (spring probe 312) and the USB terminal 313 are not physically connected at the same time, thereby ensuring safety. Furthermore, since the ECG measurement terminal (spring probe 312) and the USB terminal 313 are accommodated in the packing 141, waterproofing of these terminals is realized at the same time. That is, both waterproofness and safety are ensured with a simple configuration.
- a wide portion 150 is formed at the tip of the tongue piece 131.
- a locking notch 314 is formed on the back surface of the terminal 300.
- a hook-and-loop fastener 160 is fixed to the surface side of the upper sheet 120.
- the hook-and-loop fastener 160 can be joined to the hook-and-loop fastener 320 provided on the back side of the terminal 300.
- the terminal 300 is held on the sensor sheet 100 by the engagement between the tongue piece 131 and the locking notch 314 and the joining between the hook-and-loop fasteners 160 and 320. Is done.
- the hook-and-loop fasteners 160 and 320 have a weak surface holding force in the vertical direction but a strong surface holding force. Therefore, the tongue piece 131 and the hook-and-loop fasteners 160 and 320 reliably prevent the terminal 300 from dropping in the surface direction.
- the terminal 300 is in a state of hanging around the tongue piece 131 by engaging with the tongue piece 131 at the upper part. In this state, the hook-and-loop fasteners 160 and 320 are joined to each other and the swaying is suppressed only by lightly pressing the terminal 300 against the sensor sheet 100 side (that is, the subject side). In practice, the terminal 300 is held in a state where at least a part is lifted from the sensor sheet 100 by the tongue 131.
- the subject feels the terminal 300 with the skin at the joint portion between the tongue piece 131 and the packing 141 and the joint portion between the hook-and-loop fasteners 160 and 320. As a result, for example, the entire back surface of the terminal 300 is detected by the sensor sheet 100. Compared with the case where the terminal 300 is fixed, the uncomfortable feeling of the subject due to the presence of the terminal 300 can be reduced. If the area of the hook-and-loop fasteners 160 and 320 is reduced, the sense of discomfort of the subject can be further reduced.
- the hook-and-loop fastener 160 is disposed at a position corresponding to the gel 134. Thereby, since a gel becomes a buffer material, it becomes difficult for a subject to feel existence of terminal 300 more.
- hook-and-loop fasteners 160 and 320 instead of the hook-and-loop fasteners 160 and 320, for example, a snap button or a magnet may be used. In short, various rejoinable connectors can be used.
- the lower sheet (first sheet) 110 attached to the skin of the subject, and the surface of the lower sheet 110
- An upper sheet (second sheet) 120 attached to the side and an electric circuit part (measuring element) 130 provided in a region corresponding to the upper sheet 120 are provided, and the peripheral part 110a is a single-layer structure including only the lower sheet 110.
- the central region has a multi-layer structure of the lower sheet 110 and the upper sheet 120, thereby improving the followability to the skin at the sheet peripheral edge portion 110a where stagnation is likely to occur, while the electric circuit portion (measuring element) 130 in the central region.
- the sensor sheet 100 can be securely held, it is possible to realize the sensor sheet 100 that can reduce the itch of the subject when the sticking is continued for a long time without lowering the measurement accuracy. In particular, it becomes possible to remarkably reduce the itch of the subject when the sticking is continued for two weeks or more as compared with the conventional sensor sheet.
- the electric circuit section (measuring element) 130 can be improved while further improving the followability to the skin at the sheet peripheral edge 110a. It will be able to hold more firmly.
- the lower sheet 110 is made of a material mainly composed of polyurethane and has a thickness of 20 [ ⁇ m] or less, whereby it becomes possible to further reduce stagnation.
- the sensor sheet according to the present invention has been described with respect to a form in which all the electrodes 133 fit within one sheet 110, 120.
- each electrode 133 is disposed on an independent sheet, and You may apply to the sheet
- the electrode 133, the wiring 132, and the tongue piece 131 are configured integrally, so that they are configured separately and compared with a configuration in which they are connected via a cable or a connecting portion. Signal with less noise can be acquired.
- the measurement element mounted on the sensor sheet of the present invention is the electric circuit unit 130. Not limited to.
- an optical component for measuring SpO 2 may be mounted.
- the sensor sheet of the present invention can be applied as a sensor sheet for measuring various biological information if a measurement element mounted on the sensor sheet is selected in accordance with an object to be measured.
- the electric circuit unit 130 as the measurement element is arranged between the lower sheet 110 and the upper sheet 120 .
- the measurement element may be arranged on the upper sheet 120. Good.
- the center region of the sensor sheet 100 has been described as having a multilayer structure of the lower sheet 110 and the upper sheet 120.
- the tongue piece 131 is formed separately from the upper sheet 120 .
- the tongue piece 131 may be formed integrally with the upper sheet 120. That is, the tongue piece 131 only needs to extend from the upper sheet 120.
- the sensor sheet of the present invention is not limited to the chest of the subject, You may stick and use to places other than the chest, such as the back. In short, it can be appropriately attached to a location suitable for obtaining biometric information.
- FIG. 6 in which parts corresponding to those in FIG. 1 are assigned the same reference numerals is an exploded perspective view showing the overall configuration of the sensor sheet according to the second embodiment.
- FIG. 7 is a top view showing a state in which a terminal is attached to the sensor sheet of the second embodiment.
- the lower sheet 410 has higher stretchability than the upper sheet 420. Accordingly, even if a tension is applied to the sheet due to body movement, the peripheral portion 410a has high stretchability. Therefore, it is possible to suppress the occurrence of stagnation, generation of wrinkles, and sheet peeling at the sheet edge.
- a plurality of slits (cuts) 422 are formed at the edge of the upper sheet 420.
- the slit 422 is formed over the entire periphery of the edge.
- the slit 422 is formed toward the center direction of the upper sheet 420 perpendicular to the tangential direction of the edge. What is necessary is just to select the space
- the larger the difference in stretchability the longer the slit 422 or the shorter interval between the slits 422 may be.
- the length and interval of the slits 422 may not be the same over the entire circumference.
- the slits 422 are 5 mm apart and have a length of 2 mm.
- the slits 422 in the upper sheet 420 it is possible to suppress peeling of the upper sheet 420 from the lower sheet 410. That is, in the present embodiment, since the stretchability of the lower sheet 4100 is higher than the stretchability of the upper sheet 420, there is a difference in stretch between the lower sheet 410 and the upper sheet 420. As a result, the body There is a possibility that the upper sheet 420 may be peeled off from the lower sheet 410 when it is stuck on the table for a long time. There is a high possibility that such peeling is triggered by the edge of the upper sheet 420 where the stretchability changes suddenly.
- slits 422 are formed in the edge portion of the upper sheet 420 to relieve a rapid change in stretchability and suppress the peeling of the upper sheet 420 from the lower sheet 410.
- the peripheral region of the upper sheet 420 is a buffer region having a lower stretchability than the lower sheet 410 and a higher stretchability than the central region of the upper sheet 420 due to the slits 422.
- the slit 422 reduces the shear stress at which the two types of sheets are peeled off due to the different stretchability. In this connection, partial peeling occurs in the slit portion, but it is sufficient that the slit part can sufficiently function as an electrocardiogram electrode.
- the film peels greatly, and the lower sheet 410 and the upper sheet 420 are separated from each other, and there is a possibility that the film may develop to such a degree that the function as an electrocardiogram electrode cannot be sufficiently achieved.
- the slit 422 is formed at the edge of the upper sheet 420.
- the present invention is not limited to this, and the essential point is that the stretchability of the peripheral area of the upper sheet 420 is greater than the stretchability of the central area of the upper sheet 420. Can be increased. Therefore, for example, the peripheral region of the upper sheet 420 is made of a material having higher elasticity than the central region of the upper sheet 420, or the peripheral region of the upper sheet 420 is made thinner than the central region of the upper sheet 420. Also good.
- the lower sheet (first sheet) 410 is an upper sheet (second sheet).
- the stretchability of the upper sheet (second sheet) 420 is higher than that of the center area of the upper sheet (second sheet) 420, considering that the stretchability of the upper sheet (second sheet) 420 is higher.
- peeling of the upper sheet (second sheet) 420 from the lower sheet (first sheet) 410 can be suppressed. As a result, a more reliable measurement can be performed.
- the sensor sheet 400 of this embodiment is a sensor sheet for measuring biological information, A first sheet that is adhered to the skin of the subject, a second sheet that is adhered to a central region on the front surface side of the first sheet excluding a peripheral region of the first sheet, and an area of the second sheet A measuring element provided, wherein the first sheet is higher in elasticity than the second sheet, In the second sheet, the stretchability of the peripheral region is higher than the stretchability of the central region.
- the peripheral area of the second sheet has a lower elasticity than the first sheet and a higher elasticity than the central area of the second sheet. It is an area.
- a slit is formed in the peripheral area of the second sheet.
- the peripheral area of the second sheet is made of a material having higher elasticity than the central area of the second sheet.
- the present invention is not necessarily limited thereto.
- the area of the second sheet may be larger than that of the first sheet, but it is also effective in such a case.
- the present invention is broadly effective when the second sheet is adhered to the center region on the surface side of the first sheet excluding the peripheral region of the first sheet.
- Embodiments 1 and 2 are merely examples of implementation in carrying out the present invention, and the technical scope of the present invention should not be construed in a limited manner. That is, the present invention can be implemented in various forms without departing from the gist or main features thereof.
- the present invention is suitable as a sensor sheet for measuring biological information that needs to be measured for a long time, for example.
Abstract
Description
生体情報測定用のセンサーシートであって、
被検者の皮膚に貼着される第1シートと、
前記第1シートの表面側に貼着される第2シートと、
前記第2シートの領域に設けられる測定要素と、
を具備し、
前記第2シートは、前記第1シートよりも厚い。
<1-1>全体構成
図1は、本発明の実施の形態1に係るセンサーシートの全体構成を示す分解斜視図である。図2は、センサーシートに端末を取り付けた状態を示す上面図である。センサーシートは、心電図を取得するために、被検者の胸部に貼着されて用いられる。
図3は端末300の構成を示す図であり、図3Aは斜視図、図3Bは側面図、図3Cは下面図である。
以上説明したように、本実施の形態によれば、被検者の皮膚に貼着される下シート(第1シート)110と、下シート110の表面側に貼着される上シート(第2シート)120と、上シート120に対応する領域に設けられる電気回路部(測定要素)130とを設け、周縁部110aは下シート110のみの単層構造とし、中央領域は下シート110と上シート120の多層構造としたことにより、痒みが生じ易いシート周縁部110aにおける皮膚への追従性を高めつつ、中央領域においては電気回路部(測定要素)130をしっかりと保持できるので、測定精度を低下させずに、長時間に亘って貼り続けたときの被検者の痒みを軽減し得るセンサーシート100を実現できる。特に、2週間以上に亘って貼り続けたときの被検者の痒みを従来のセンサーシートに比して格段に軽減できるようになる。
<2-1>全体構成
図1との対応部分に同一符号を付して示す図6は、実施の形態2に係るセンサーシートの全体構成を示す分解斜視図である。図7は、実施の形態2のセンサーシートに端末を取り付けた状態を示す上面図である。
以上説明したように、本実施の形態によれば、実施の形態1の構成に加えて、下シート(第1シート)410は、上シート(第2シート)420の領域よりも伸縮性が高いことを考慮して、上シート(第2シート)420の周縁領域の伸縮性を上シート(第2シート)420の中央領域の伸縮性よりも高くしたことにより、下シート(第1シート)410からの上シート(第2シート)420の剥がれを抑制できるようになる。この結果、より信頼性の高い測定を行うことができる。
被検者の皮膚に貼着される第1シートと、前記第1シートの周縁領域を除く前記第1シートの表面側中央領域に貼着される第2シートと、前記第2シートの領域に設けられる測定要素と、を具備し、前記第1シートは、前記第2シートよりも伸縮性が高く、
前記第2シートは、周縁領域の伸縮性が中央領域の伸縮性よりも高い。
110、410 下シート
110a、410a 周縁部
120、420 上シート
130 電気回路部
131 舌片
132 配線
133 電極
134 ゲル
140 コネクタ
141 パッキン
150 幅広部
160、320 面ファスナー
210 ライナー
220 トップセパレーター
300 端末
310 取付部
311 挿入口
312 スプリングプローブ
313 USB端子
314 係止用切欠
Claims (7)
- 生体情報測定用のセンサーシートであって、
被検者の皮膚に貼着される第1シートと、
前記第1シートの表面側に貼着される第2シートと、
前記第2シートの領域に設けられる測定要素と、
を具備し、
前記第2シートは、前記第1シートよりも厚い、
センサーシート。 - 前記第2シートは、前記第1シートよりも面積が小さく、かつ、前記第1シートの周縁領域を除く前記第1シートの中央領域に貼着されている、
請求項1に記載のセンサーシート。 - 前記第1シートは、ポリウレタンを主成分とし、かつ厚さが20[μm]以下である、
請求項1又は請求項2に記載のセンサーシート。 - 前記第2シートは、前記第1シートよりも強度が高い、
請求項1又は請求項2に記載のセンサーシート。 - 前記測定要素は、複数の電極と、当該複数の電極に繋がる配線と有し、
前記配線は、シートの面内で蛇行した形状を有する、
請求項1又は請求項2に記載のセンサーシート。 - 前記測定要素は、複数の電極と、当該複数の電極に繋がる配線と有し、
前記配線は、前記第1及び第2シートよりも可撓性の小さいフィルム基材上に形成されている、
請求項1又は請求項2に記載のセンサーシート。 - 2週間以上連続して心電図を測定するためのセンサーシートとして用いられる、
請求項1又は請求項2に記載のセンサーシート。
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EP16844456.0A EP3348188A4 (en) | 2015-09-11 | 2016-09-08 | SENSOR FILM |
CN201680051813.0A CN107949324B (zh) | 2015-09-11 | 2016-09-08 | 传感器片 |
KR1020207029625A KR102369837B1 (ko) | 2015-09-11 | 2016-09-08 | 센서 시트 |
KR1020187006942A KR102366714B1 (ko) | 2015-09-11 | 2016-09-08 | 센서 시트 |
JP2017538515A JP6537618B2 (ja) | 2015-09-11 | 2016-09-08 | センサーシート |
US15/759,234 US20180235502A1 (en) | 2015-09-11 | 2016-09-08 | Sensor sheet |
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EP (1) | EP3348188A4 (ja) |
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WO2020262403A1 (ja) * | 2019-06-27 | 2020-12-30 | ニプロ株式会社 | 生体用電極パッド付き収納ケースおよび生体用電極パッド付き収納ケースを備えた生体信号処理装置 |
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KR20180039696A (ko) | 2018-04-18 |
CN107949324B (zh) | 2021-06-11 |
EP3348188A1 (en) | 2018-07-18 |
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