WO2022158605A1 - カフ及び血圧測定装置 - Google Patents

カフ及び血圧測定装置 Download PDF

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Publication number
WO2022158605A1
WO2022158605A1 PCT/JP2022/002598 JP2022002598W WO2022158605A1 WO 2022158605 A1 WO2022158605 A1 WO 2022158605A1 JP 2022002598 W JP2022002598 W JP 2022002598W WO 2022158605 A1 WO2022158605 A1 WO 2022158605A1
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WO
WIPO (PCT)
Prior art keywords
cuff
blood pressure
notch
bag
air bag
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/JP2022/002598
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
雅規 原田
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.)
Omron Healthcare Co Ltd
Original Assignee
Omron Healthcare Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Omron Healthcare Co Ltd filed Critical Omron Healthcare Co Ltd
Priority to CN202280010495.9A priority Critical patent/CN116867430A/zh
Priority to DE112022000804.0T priority patent/DE112022000804T5/de
Publication of WO2022158605A1 publication Critical patent/WO2022158605A1/ja
Priority to US18/355,071 priority patent/US20230355115A1/en
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
    • A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
    • A61B5/021—Measuring pressure in heart or blood vessels
    • A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
    • A61B5/02233—Occluders specially adapted therefor
    • A61B5/02241—Occluders specially adapted therefor of small dimensions, e.g. adapted to fingers
    • 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
    • A61B5/6802—Sensor mounted on worn items
    • A61B5/681—Wristwatch-type devices
    • 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
    • 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
    • A61B5/256—Wearable electrodes, e.g. having straps or bands
    • 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]

Definitions

  • the present invention relates to a cuff and a blood pressure measuring device used in a blood pressure measuring device that measures blood pressure.
  • a blood pressure measuring device measures blood pressure by inflating and deflating a cuff wrapped around the upper arm or wrist of a living body and detecting the pressure of the cuff with a pressure sensor, thereby detecting vibration of the arterial wall.
  • wrinkles on the cuff may divide the internal space of the cuff or cause a loss of inflation pressure, resulting in reduced blood pressure measurement accuracy and variations in measurement results. be a factor.
  • a cuff with grooves on the outer surface facing the living body requires primary processing such as profile extrusion, injection molding, and embossing to form the grooves in the sheet member that constitutes the cuff. For this reason, the number of manufacturing steps for the sheet member forming the cuff is increased.
  • the welded portion inhibits expansion of the cuff, resulting in insufficient compressive force. As a result, there is a problem that blood pressure measurement accuracy is lowered.
  • an object of the present invention is to provide a cuff and a blood pressure measuring device that can reduce the number of manufacturing steps of a sheet member that constitutes the cuff while controlling the occurrence of wrinkles.
  • a plurality of bag-like structures are configured by fixing two sheet members long in one direction at their outer peripheral edges, and are laminated in the same longitudinal direction so as to be wrapped around a living body; and the plurality of bags. of the bag-shaped structure, provided in at least two sheet members of the bag-shaped structure on the living body side, and cut out from one end toward the other end in the width direction, and two adjacent bag-shaped structures. and a fixing part provided in a frame shape inside the outer peripheral edges of the two sheet members facing each other of the structure and fixing the two bag-like structures.
  • the cuff includes a bag-like structure that is wrapped around the upper arm, wrist, or the like of a living body when blood pressure is measured, and expands when fluid is supplied, and is inflated by the supplied fluid.
  • fluid includes liquid and air.
  • the bag-like structure is, for example, an air bag that is inflated by air.
  • the notch becomes a starting point for wrinkles.
  • Wrinkles occur when the bag-like structure expands while being wrapped around a living body, and a difference in circumference between the outer peripheral surface and the inner peripheral surface of the bag-like structure (difference between inner and outer circumferences) occurs. It includes a bulge toward the living body, a dent toward the outer peripheral surface, and a crease formed on the inner peripheral surface of the bag-shaped structure.
  • wrinkles are generated due to the difference between the inner and outer circumferences of the bag-like structure, and the position of the wrinkles can be controlled by the notch.
  • the bag-shaped structure is configured by fixing the outer peripheral edges of two sheet members. Two adjacent bag-like structures are fixed inside the outer peripheral edges of the two sheet members facing each other by a frame-like fixing portion. Since the two adjacent bag-like structures are fixed inside the notch by the fixing portion, the notch does not hinder the expansion of the bag-like structures.
  • the welded regions form a plurality of bag-like structures. Inflation of the structure is affected, ie cuff inflation is affected.
  • the notch portion in the shape of notching from one end toward the other end in the width direction of the two sheet members, wrinkles can be controlled with a simple configuration. Therefore, it is not necessary to subject the sheet member constituting the bag-like structure to primary processing for forming wrinkle-producing grooves. Therefore, it is possible to reduce the number of manufacturing steps of the sheet member that constitutes the bag-like structure.
  • a cuff is provided in which the cutout portion is formed so as to avoid a position facing the artery while being wrapped around the living body.
  • the notch is arranged at a position that avoids a position facing the artery when the blood pressure measurement device is worn. Therefore, it is possible to suppress the occurrence of wrinkles at the position of the cuff facing the artery, and even if the cuff is inflated at that position, the wrinkles are shallower than the wrinkles caused by the notch. It can be wrinkled.
  • a cuff according to the above aspect is provided, in which a plurality of the cutout portions are provided.
  • any one of the cuffs described above a pump that supplies fluid to the cuff, a pressure sensor that detects the pressure of the cuff, a body attached to the cuff and containing a control board, A blood pressure measurement device is provided.
  • the notch becomes a starting point for wrinkles.
  • wrinkles are generated due to the difference between the inner and outer circumferences of the bag-like structure, and the position of the wrinkles can be controlled by the notch.
  • the bag-shaped structure is configured by fixing the outer peripheral edges of two sheet members. Two adjacent bag-like structures are fixed inside the outer peripheral edges of the two sheet members facing each other by a frame-like fixing portion. Since the two adjacent bag-like structures are fixed inside the notch by the fixing portion, the notch does not hinder the expansion of the bag-like structures.
  • the welded regions form a plurality of bag-like structures. Inflation of the structure is affected, ie cuff inflation is affected.
  • the notch portion in the shape of notching from one end toward the other end in the width direction of the two sheet members, wrinkles can be controlled with a simple configuration. Therefore, it is not necessary to subject the sheet member constituting the bag-like structure to primary processing for forming wrinkle-producing grooves. Therefore, it is possible to reduce the number of manufacturing steps of the sheet member that constitutes the bag-like structure.
  • the blood pressure measurement device according to one aspect of the above, wherein the notch portion is formed so as to avoid a position facing an artery when attached to a living body.
  • the notch is arranged at a position that avoids a position facing the artery when the blood pressure measurement device is worn. Therefore, it is possible to suppress the occurrence of wrinkles at the position of the cuff facing the artery, and even if the cuff is inflated at that position, the wrinkles are shallower than the wrinkles caused by the notch. It can be wrinkled.
  • a blood pressure measurement device in which a plurality of cutout portions are provided.
  • a blood pressure measuring device that includes a flow path that fluidly communicates with the cuff, and that the flow path passes through the notch.
  • the channel can be arranged in the cuff from one side to the other side of the cuff.
  • a blood pressure measuring device including electrical wiring electrically connected to the control board, the electrical wiring passing through the notch portion.
  • the electrical wiring can be arranged on the cuff from one side to the other side of the cuff.
  • a cuff and a blood pressure measuring device that can reduce the number of manufacturing steps of a sheet member that constitutes the cuff while suppressing the occurrence of wrinkles that affect blood pressure measurement results.
  • FIG. 1 is a perspective view showing the configuration of a blood pressure measuring device according to one embodiment of the present invention.
  • FIG. 2 is a cross-sectional view showing the configuration of a cuff structure used in the blood pressure measuring device.
  • FIG. 3 is a plan view showing the configuration of the cuff structure.
  • FIG. 4 is a side view showing the configuration of a pressure cuff used in the same cuff structure.
  • FIG. 5 is a side view schematically showing the configuration of the pressure cuff when inflated.
  • FIG. 6 is a plan view showing the configuration of a first modified example of the pressure cuff.
  • FIG. 7 is a plan view showing the configuration of a second modification of the pressure cuff used in the blood pressure measurement device according to this embodiment.
  • FIG. 8 is a plan view showing a pressure cuff and electrical wiring used in a blood pressure measuring device according to a modification of this embodiment.
  • FIG. 1 An example of a blood pressure measurement device 1 according to an embodiment of the present invention will be shown below using FIGS. 1 to 5.
  • FIG. 1 An example of a blood pressure measurement device 1 according to an embodiment of the present invention will be shown below using FIGS. 1 to 5.
  • FIG. 1 An example of a blood pressure measurement device 1 according to an embodiment of the present invention will be shown below using FIGS. 1 to 5.
  • FIG. 1 An example of a blood pressure measurement device 1 according to an embodiment of the present invention will be shown below using FIGS. 1 to 5.
  • FIG. 1 is a perspective view showing the configuration of the blood pressure measurement device 1.
  • FIG. FIG. 2 is a cross-sectional view showing the configuration of the cuff structure 6 used in the blood pressure measurement device 1.
  • FIG. 3 is a side view showing the configuration of the pressure cuff 71 used in the cuff structure 6.
  • FIG. 4 is a plan view showing the configuration of the pressure cuff 71.
  • FIG. 5 is a side view schematically showing the configuration of the pressure cuff 71 when inflated.
  • the blood pressure measurement device 1 is an electronic blood pressure measurement device worn on a living body.
  • the blood pressure measurement device 1 in this embodiment is an electronic blood pressure measurement device that has the aspect of a wearable device attached to the wrist 100 and measures the blood pressure from the artery 110 .
  • the blood pressure measuring device 1 includes, for example, a device main body 3, a belt 4, curlers 5, and a cuff structure 6.
  • the device main body 3 includes, for example, a case 11, a display section 12, and an operation section 13. Further, the device main body 3 includes a pump 14 for inflating the cuff structure 6, a pressure sensor 15, a flow channel portion fluidly connecting the pump 14 and the cuff structure 6, and a control board 16. ing. For example, one or a plurality of on-off valves and a pressure sensor 15 that detects the pressure of the cuff of the cuff structure 6 are connected to the flow channel.
  • the case 11 includes, for example, a cylindrical outer case 31 , a windshield 32 that covers an upper opening of the outer case 31 , and a back cover 35 that covers the inner bottom of the outer case 31 .
  • the outer shell case 31 is formed in a cylindrical shape, for example.
  • the outer case 31 includes a pair of lugs 31a provided at symmetrical positions on the outer peripheral surface in the circumferential direction, and spring bars 31b provided between the two pairs of lugs 31a.
  • the windshield 32 is, for example, a circular glass plate.
  • the back cover 35 covers the wrist-side end of the outer case 31 .
  • the back cover 35 is fixed to, for example, the wrist-side end of the outer case 31 .
  • the display unit 12 is arranged at a position facing the windshield 32 of the outer case 31 .
  • the display unit 12 is electrically connected to the control board 16 .
  • the display unit 12 is, for example, a liquid crystal display or an organic electroluminescence display.
  • the display unit 12 displays various information including date and time, blood pressure values such as systolic blood pressure and diastolic blood pressure, and measurement results such as heart rate.
  • the operation unit 13 is configured so that commands from the user can be input.
  • the operation unit 13 includes a plurality of buttons 41 provided on the case 11 , sensors that detect operations of the buttons 41 , and a touch panel 43 provided on the display unit 12 or windshield 32 .
  • the operation unit 13 is operated by the user to convert the command into an electric signal and output the electric signal to the control board 16 .
  • the pump 14 is, for example, a piezoelectric pump.
  • the pump 14 compresses air and supplies the compressed air to the cuff structure 6 through the flow path.
  • Pump 14 is electrically connected to control board 16 .
  • the belt 4 includes a first belt 61 provided on one pair of lugs 31a and spring bar 31b, and a second belt 62 provided on the other pair of lugs 31a and spring bar 31b.
  • the first belt 61 is called a so-called parent, is configured in a strip shape, and has a buckle 61c.
  • the first hole 61 a is rotatably held by the outer case 31 .
  • the buckle 61c has a rectangular frame-shaped body 61d and a stick 61e rotatably attached to the frame-shaped body 61d.
  • the second belt 62 is called a so-called tip, and is configured in a belt shape having a width that can be inserted into the frame-shaped body 61d.
  • the second belt 62 also has a plurality of small holes 62a into which sticks 61e are inserted.
  • the second belt 62 is rotatably held by the outer case 31 .
  • the first belt 61 and the second belt 62 are integrally connected by inserting the second belt 62 into the frame-like body 61d and inserting the rod 61e attached to the small hole 62a, thereby Together with the case 31, it forms an annular shape following the circumferential direction of the wrist 100. - ⁇
  • the belt 4 is annular, and presses the curler 5 and the cuff structure 6 toward the wrist 100 when the cuff structure 6 is inflated.
  • the curler 5 is made of, for example, a resin material, and is shaped like a band that curves along the circumferential direction of the wrist.
  • the curler 5 has one end fixed to the wrist 100 side of the device main body 3 and the other end close to the device main body 3 .
  • the curler 5 is fixed to the outer surface of the back cover 35 as shown in FIG. It may project from the side of the other pair of lugs 31a of the back cover 35 and extend to a position where the other end is adjacent to the one end.
  • the curler 5 has hardness with flexibility and shape retention.
  • having flexibility means that the shape of the curler 5 is deformed in the radial direction when an external force is applied to it. Or, it means that the shape of the side view is deformed so as to conform to the shape of the wrist or follow the shape of the wrist.
  • having a shape retainability means that the curler 5 can maintain a preformed shape when no external force is applied. It means that the shape can be maintained.
  • the surface of the curler 5 facing the wrist is referred to as the inner surface of the curler 5 .
  • the curler 5 holds the cuff structure 6 along the inner shape of the curler 5 .
  • the cuff structure 6 includes one or more cuffs and is connected to the pump 14 via the flow path.
  • the cuff structure 6 presses the wrist 100 when the cuff is inflated by the fluid from the pump 14 .
  • the cuff structure 6 includes, for example, a pressing cuff 71, a back plate 72, and a sensing cuff 73.
  • the cuff structure 6 is integrally constructed by laminating a pressure cuff 71, a back plate 72, and a sensing cuff 73.
  • a cuff structure 6 is secured to the inner surface of the curler 5 .
  • the pressure cuff 71 includes a plurality of air bags 81 stacked in alignment in the longitudinal direction, a connecting portion 83 , and a second air bag fixing two adjacent ones of the plurality of air bags 81 . and a fixing portion 85 .
  • the pressing cuff 71 is fixed to the curler 5 by attaching the outer air bag 81 to the inner surface of the curler 5 with double-sided tape, adhesive, or the like.
  • the pressure cuff 71 is fluidly connected to the pump 14 by connecting the connecting portion 83 to the flow path portion.
  • the pressing cuff 71 presses the back plate 72 and the sensing cuff 73 toward the wrist by being inflated.
  • the pressure cuff 71 has a length extending from the back of the hand to the palm of the wrist 100 when the blood pressure measuring device 1 is worn on the wrist.
  • the plurality of air bladders 81 are, for example, three-layer air bladders 81 .
  • the air bag 81 is a bag-like structure.
  • the blood pressure measuring device 1 is configured to use air by the pump 14, an air bag will be used for explanation. There may be.
  • the air bag 81 is formed in a shape elongated in one direction by overlapping two sheet members 86 elongated in one direction and heat-sealing the outer peripheral edges.
  • the air bag 81 is provided with a first fixing portion 81a that fixes the outer peripheries of the two sheet members 86 .
  • the first fixing portion 81a is, for example, a weld portion in which two sheet members 86 are welded by heat.
  • the outer peripheral edges of the two sheet members 86 on which the first fixing portions 81 a are provided also include the outer peripheral edges of the notch portions 84 formed in the sheet members 86 .
  • the plurality of air bags 81 communicate with each other so that the air can move.
  • openings 87 are formed in the two opposing sheet members 86 of two adjacent air bags 81 among the plurality of air bags 81 . Thereby, two adjacent air bags 81 are communicated through the opening 87 .
  • the notch portion 84 has a shape that is notched from one end to the other end in the width direction of the air bag 81, that is, a shape that is recessed so that the width narrows from one end to the other end in the width direction of the air bag 81. formed in At the position where the notch 84 is formed, when the pressure cuff 71 is inflated and presses the wrist, the surface of the air bag 81 on the wrist 100 side is wrinkled. The wrinkles are formed when the air bag 81 expands while being wrapped around the wrist 100 and a difference in circumference (inner and outer circumference difference) occurs between the outer circumference and the inner circumference of the air bag 81 . It is a bulge toward the wrist 100 side, a dent toward the outer peripheral surface side, or a crease formed in the inner peripheral surface of the air bag 81 so that the inner peripheral surface is located on the outer peripheral surface side.
  • the notch portions 84 are formed, for example, at the same positions on all of the plurality of air bags 81 . In this embodiment, the notch portions 84 are formed at the same position in the longitudinal direction of each of the three air bags 81 .
  • the notch 84 is formed at a position of the air bag 81 that does not affect blood pressure measurement.
  • the position that does not affect blood pressure measurement is, for example, a position that avoids the area of the pressure cuff 71 facing the artery 110 when the blood pressure measurement device 1 is worn on the wrist 100 .
  • the notch 84 is formed at a position avoiding the sensing cuff 73 .
  • One or more notch portions 84 are formed in one air bag 81 .
  • one notch portion 84 is formed in one air bag 81 .
  • a first fixing portion 81 a is formed along the notch 84 . That is, around the notch portion 84, the first fixing portion 81a is recessed from one end to the other side in the width direction of the air bag 81. As shown in FIG.
  • the notch portion 84 has a predetermined width in the width direction and longitudinal direction of the sheet member 86 .
  • the predetermined width is appropriately set according to the number and depth of creases to be generated.
  • the dimension along the width direction of air bag 81 and the dimension along the longitudinal direction of air bag 81 are appropriately selected as long as cutout portion 84 is configured to generate predetermined wrinkles.
  • the predetermined wrinkles refer to wrinkles that are deep enough not to divide the internal space of the air bag 81 when the pressure cuff 71 curved following the shape of the wrist 100 in the circumferential direction is inflated. .
  • the notch 84 has a predetermined width that does not divide the internal space of the air bag 81 by the wrinkles that are generated, so that one side and the other side of the air bag 81 in the longitudinal direction across the notch 84 communicate with each other. state is preserved.
  • the notch 84 has a dimension along the width direction of the pressure cuff 71 and a dimension along the longitudinal direction of the pressure cuff 71 through which the channel body 92 of the sensing cuff 73 can pass, for example. .
  • the second fixing part 85 fixes two adjacent air bags 81 that are stacked.
  • the second fixing portion 85 is formed in a frame shape inside the first fixing portions 81 a of the two air bags 81 .
  • the second fixed portion 85 is a welded portion formed by, for example, heat-welding the facing sheet members 86 of the air bags 81 adjacent to each other.
  • the second fixing portion 85 is formed, for example, in the shape of a frame surrounding openings 87 formed in sheet members of two adjacent air bags 81 .
  • the connecting portion 83 is connected to the flow channel portion.
  • the connecting portion 83 is provided, for example, in one air bag 81 on the wrist 100 side of the plurality of air bags 81 .
  • the connecting portion 83 is, for example, a nipple.
  • the three-layered air bag 81 includes, from the wrist 100 side, a first sheet member 86a, a second sheet member 86b that constitutes the first sheet member 86a and the air bag 81 of the first layer, and a second sheet member 86b.
  • a sixth sheet member 86f forming the air bag 81 of the third layer together with the fifth sheet member 86e.
  • These sheet members 86 a , 86 b , 86 c , 86 d , 86 e , 86 f have cutouts forming cutout portions 84 .
  • the first sheet member 86a and the second sheet member 86b configure the air bag 81 by fixing the outer peripheral edges thereof with the first fixing portion 81a.
  • the third sheet member 86c and the fourth sheet member 86d configure the air bag 81 by fixing the outer peripheral edge thereof with the first fixing portion 81a.
  • the fifth sheet member 86e and the sixth sheet member 86f constitute an air bag by fixing the outer peripheral edge thereof with the first fixing portion 81a.
  • An adhesive layer and double-sided tape are provided on the outer surface of the curler 5 side of the sixth sheet member 86f, and the sixth sheet member 86f is attached to the curler 5 by this adhesive layer and double-sided tape.
  • the second sheet member 86b and the third sheet member 86c are arranged facing each other and have openings 87b and 87c that communicate the two air bags 81, respectively.
  • the second sheet member 86b and the third sheet member 86c are fixed by the first fixing section 81a inside the first fixing section 81a on the outer periphery forming the air bag 81 and outside the openings 87b and 87c. .
  • the fourth sheet member 86d and the fifth sheet member 86e are arranged facing each other and have openings 87d and 87e that communicate the two air bags 81, respectively.
  • the fourth sheet member 86d and the fifth sheet member 86e are fixed by the first fixing portion 81a inside the first fixing portion 81a of the outer peripheral edge forming the air bag 81 and outside the openings 87b and 87c. .
  • the back plate 72 is attached to the outer surface 86a1 of the first sheet member 86a of the pressure cuff 71 with an adhesive layer, double-sided tape, or the like.
  • the back plate 72 is made of a resin material and formed in a plate shape.
  • the back plate 72 is made of polypropylene, for example, and formed in a plate shape with a thickness of about 1 mm.
  • the back plate 72 has shape followability.
  • the shape followability refers to the property that the back plate 72 can be deformed so as to follow the shape of the contact portion of the wrist 100 placed.
  • the contact point of the wrist 100 refers to the area that contacts the back plate 72, and contact here includes both direct contact and indirect contact.
  • the sensing cuff 73 is fixed to the surface of the back plate 72 on the wrist 100 side. Sensing cuff 73 directly contacts the area of wrist 100 where artery 110 resides.
  • the sensing cuff 73 is formed to have the same shape as the back plate 72 or a shape smaller than the back plate 72 in the longitudinal direction and the width direction of the back plate 72 .
  • the sensing cuff 73 When the sensing cuff 73 is inflated, it presses the area where the arteries exist on the palm side of the wrist. The sensing cuff 73 is pressed toward the wrist 100 through the back plate 72 by the inflated pressing cuff 71 .
  • the sensing cuff 73 includes one air bag 91 and a channel body 92.
  • One surface of the air bag 91 of the sensing cuff 73 is fixed to the back plate 72 .
  • the sensing cuff 73 is attached to the surface of the back plate 72 on the living body side with a double-sided tape, an adhesive layer, or the like.
  • the air bag 91 is a bag-like structure.
  • the blood pressure measurement device 1 is configured to use air by the pump 14, an explanation will be given using an air bag. There may be.
  • the air bag 91 is configured to have a shape elongated in one direction by overlapping two sheet members 96 elongated in one direction and heat-sealing the outer peripheral edges.
  • the channel body 92 is provided integrally with a portion of one longitudinal edge of the air bag 91 .
  • the flow path body 92 is provided at the end portion of the air bag 91 in the longitudinal direction near the device main body 3 . Further, the flow path body 92 is formed in a shape that is longer in one direction with a width that is smaller than the dimension in the width direction of the air bag 91 .
  • the flow channel body 92 has a connecting portion 93 at its tip. The flow channel body 92 is connected to the flow channel portion via the connecting portion 93 and constitutes a flow channel between the flow channel portion and the air bag 91 .
  • a part of such a channel body 92 is arranged, for example, in the notch 84 as shown in FIG. That is, in order to connect the sensing cuff 73 arranged on the side of the pressing cuff 71 closer to the wrist 100 to the channel portion on the opposite side of the pressing cuff 71, the channel body 92 is pressed through the notch portion 84. The cuff 71 is moved from the side closer to the wrist 100 to the opposite side.
  • the connecting part 93 is, for example, a nipple.
  • the connecting portion 93 is provided at the tip of the flow path body 92 .
  • the connection portion 93 is connected to the flow path portion, and is connected to the pump 14 via the flow path portion.
  • the sensing cuff 73 includes a seventh sheet member 96a and an eighth sheet member 96b from the wrist 100 side, as shown in FIG.
  • the seventh sheet member 96a and the eighth sheet member 96b are configured in a shape capable of configuring the air bag 91 and the flow channel body 92 .
  • the seventh sheet member 96a and the eighth sheet member 96b are arranged to face each other, along the peripheral shapes of the air bag 91 and the flow path body 92 so that the air bag 91 and the flow path body 92 are in fluid communication.
  • the air bag 91 and the flow path body 92 are configured by being welded by heat and cut into a predetermined shape.
  • Each sheet member 86, 96 forming the pressing cuff 71 and the sensing cuff 73 is made of a thermoplastic elastomer.
  • the thermoplastic elastomer forming the sheet members 86 and 96 include Thermoplastic Polyurethane (hereinafter referred to as TPU), PolyVinyl Chloride, and Ethylene-Vinyl Acetate. , Thermoplastic PolyStyrene, Thermoplastic PolyOlefin, ThermoPlastic Polyester and Thermoplastic PolyAmide. It is preferable to use TPU as the thermoplastic elastomer.
  • the sheet member may have a single-layer structure, or may have a multi-layer structure.
  • the sheet members 86 and 96 are not limited to thermoplastic elastomers, and may be thermosetting elastomers such as silicone. It may be a combination.
  • thermoplastic elastomer When the sheet members 86 and 96 are made of thermoplastic elastomer, a molding method such as T-die extrusion molding, injection molding, blow molding or calender molding is used. A molding method such as molding is used.
  • the sheet members 86, 96 are formed by, for example, each forming method, joined by adhesion, welding, or the like, and then sized into a predetermined shape to form the air bags 81, 91.
  • the notches that constitute the notch portion 84 of the sheet member 86 can be formed, for example, during this sizing.
  • a joining method high-frequency welder or laser welding is used when a thermoplastic elastomer is used, and a molecular adhesive is used when a thermosetting elastomer is used.
  • the pressure cuff 71 configured in this manner has the notch when the blood pressure measurement device 1 is worn on the wrist 100 and the pressure cuff 71 is sufficiently inflated to measure the blood pressure.
  • Portion 84 causes deep wrinkles. Wrinkles also occur at positions where the notch 84 is not provided, but are shallower than the wrinkles caused by the notch 84 . 5, for the sake of convenience, a plurality of air bags 81 forming the pressure cuff 71 are collectively shown as one air bag 81. As shown in FIG.
  • the pressure cuff 71 has a notch portion 84 that causes wrinkles.
  • the two sheet members 86 forming the air bag 81 of the pressure cuff 71 are fixed by the first fixing portion 81a at the outer peripheral edge including the notch forming the notch portion 84 .
  • the two opposing sheet members 86 of the two adjacent air bags 81 are fixed by the second fixing portion 85 inside the first fixing portion 81a. That is, two adjacent air bags 81 are fixed by the second fixing portion 85 inside the notch portion 84 .
  • the air bag 81 When the air bag 81 is inflated, the air bag 81 is inflated by moving or deforming such that the inner sides of the two sheet members 86 constituting the air bag 81 relative to the first fixing portion 81a are separated from each other. Since the sheet member 86 is fixed by the first fixing portion 81a at the outer peripheral edge including the notch, the notch 84 does not hinder the expansion of the air bag 81. As shown in FIG. Furthermore, the two sheet members 86 facing each other of the two adjacent air bags 81 are fixed inside the notch portion 84 by the second fixing portion 85, so that the notch portion 84 is attached to the two adjacent air bags. The expansion of the bag 81 is not hindered. As a result, the notch 84 does not affect inflation of the pressure cuff 71 .
  • the welded regions allow the plurality of air bags 81 to be separated from each other. Inflation is affected. That is, the expansion of the pressure cuff 71 is affected.
  • the two adjacent air bags 81 are fixed by the second fixing portion 85 inside the cutout portion 84, so that the cutout portion 84 does not affect the inflation of the other air bags 81. .
  • the notch 84 can cause wrinkles at the position where the notch 84 of the pressure cuff 71 is provided when the pressure cuff 71 of the cuff structure 6 provided on the inner surface of the curler 5 is inflated. can. Therefore, the blood pressure measurement device 1 can improve the accuracy of the blood pressure measurement results.
  • the pressure cuff 71 Since the curler 5 provided in the blood pressure measuring device 1 has a shape along the circumferential direction of the wrist 100, the pressure cuff 71 has a shape curved with a predetermined curvature. Therefore, since the radius of curvature of the inner peripheral surface side and the outer peripheral surface side of the pressure cuff 71 is different, the inflated pressure cuff 71 has a different peripheral length between the inner peripheral surface and the outer peripheral surface, resulting in a difference between the inner and outer peripheral surfaces. occurs. Due to this difference between the inner and outer circumferences, a part of the inner circumference of the plurality of air bags 81 of the pressure cuff 71 is wrinkled. A portion of the wrinkles may be a crease formed in air bag 81 such that a portion of the inner peripheral surface of air bag 81 is located on the outer peripheral surface side.
  • the wrinkled portion does not bulge toward the wrist 100, the pressing force cannot be efficiently transmitted to the wrist 100 and the sensing cuff 73, and the pressure distribution on the surface of the pressing cuff 71 becomes uneven. Therefore, the wrinkles on the inner peripheral surface of the pressure cuff 71 may affect the blood pressure measurement results, such as lowering the blood pressure measurement accuracy and causing variations in the measurement results.
  • this embodiment is configured such that the pressure cuff 71 is provided with the notch portion 84 that serves as a starting point for wrinkles. Therefore, by setting the position where the notch 84 is provided, the wrinkle-producing position can be controlled. Therefore, when blood pressure is measured, variations in blood pressure measurement results can be prevented, and the accuracy of blood pressure measurement results can be improved.
  • wrinkles tend to be deeper in areas with a small radius of curvature.
  • the circulation of air in air bag 81 is obstructed. Therefore, it is better to form the notch 84 at a position that avoids a portion where the radius of curvature of the curler facing the air bag 81 is smaller than others.
  • the cutout portion 84 is provided in an area of the air bag 81 where the sensing cuff 73 is not arranged, that is, in an area that avoids a position facing the artery, so that the sensing cuff 73 can be It is possible to suppress the occurrence of wrinkles in the area where it is arranged.
  • the pressing cuff 71 can press the sensing cuff 73 more uniformly, and the sensing cuff 73 can preferably press the artery.
  • the notch portion 84 is formed by the notches formed in the two sheet members 86 forming each of the air bags 81 of the pressure cuff 71, the sheet members 86 forming the air bags 81 wrinkle. There is no need to perform primary processing such as forming a groove for aligning. Therefore, the number of steps for manufacturing the sheet member 86 can be reduced.
  • the notch 84 of the pressure cuff 71 can control the position of wrinkles generated in the pressure cuff 71 , the length of the pressure cuff 71 can be adjusted to the back of the wrist 100 when the blood pressure measuring device 1 is worn on the wrist 100 . Even with the length extending from the side to the palm side, it is possible to prevent the press cuff 71 from wrinkling that affects blood pressure measurement. As a result, it is possible to prevent the number of cuffs included in the cuff structure 6 from increasing.
  • the notch portion 84 of the pressure cuff 71 can be Since wrinkles can be generated at the provided position, the accuracy of blood pressure measurement results can be improved. Furthermore, since the primary processing of forming grooves or the like for wrinkling the sheet member 86 constituting the air bag 81 is not required, the number of steps for manufacturing the sheet member 86 can be reduced.
  • one cutout portion 84 is formed in one air bag 81 has been described, but the method of forming the cutout portion 84 is not limited to this. In another example, a plurality of notches 84 may be formed in one air bladder 81 .
  • two notch portions 84 may be formed at one end of the air bag 81 in the width direction.
  • one notch 84 may be formed at each end of the air bag 81 in the width direction.
  • the notches 84 may be formed at different positions in the longitudinal direction of the pressure cuff 71 at both ends in the width direction of the pressure cuff 71 .
  • the cutouts 84 may be formed at both ends of the pressure cuff 71 in the width direction so as to face each other in the width direction.
  • the shape of the notch portion 84 can be appropriately set as long as wrinkles can be controlled.
  • the configuration in which the cutout portions 84 are provided in all of the plurality of air bags 81 provided in the pressure cuff 71 has been described as an example, but the present invention is not limited to this.
  • at least one of the plurality of air bags 81 of the pressure cuff 71 may be provided with the notch portion 84 .
  • at least one air bag 81 arranged on the wrist 100 side of the plurality of air bags 81 may be provided with the notch portion 84 . That is, the notch portion 84 can be set appropriately as long as the wrinkles of the air bag 81 on the living body side can be controlled and each air bag 81 can be inflated.
  • the structure in which the channel body 92 connecting the channel part in the device main body 3 and the sensing cuff 73 is passed through the notch portion 84 has been described as an example.
  • the member that connects the structure 6 side is not limited to the channel body 92 .
  • the electrical wiring 120 that electrically connects the apparatus main body 3 side and the cuff structure 6 side may be passed through the notch portion 84 .
  • FIG. 8 shows part of the electrical wiring 120 .
  • an electrical component required for blood pressure measurement such as the pump 14 and the pressure sensor 15, is installed on the sensing cuff 73 side, and this electrical component is connected to the electrical wiring. 120 for electrical connection to the control board 16 in the apparatus main body 3 .
  • a control board 16 in the apparatus main body 3 controls the pump 14 via electrical wiring 120, for example.
  • the pressure sensor 15 transmits the detection result to the control board 16 via the electrical wiring 120, for example.
  • the electrical wiring 120 is, for example, a flexible printed wiring board.
  • the device main body 3 can be miniaturized.
  • electrodes for electrocardiogram measurement are provided in the cuff structure 6 at a position in contact with the wrist 100 , and the electrodes and the device main body 3 are controlled by the electrical wiring 120 .
  • Substrate 16 may be electrically connected. According to this configuration, the electrocardiogram can be measured by the blood pressure measuring device 1 .
  • the pump 14 , the pressure sensor 15 , and the electrodes for electrocardiogram measurement may be provided in the cuff structure 6 and connected to the control board 16 of the device main body 3 by the electrical wiring 120 . Also, both the flow channel body 92 and the electrical wiring 120 may pass through the notch portion 84 .
  • the present invention is not limited to the above-described embodiments, and can be modified in various ways without departing from the gist of the present invention at the implementation stage. Moreover, each embodiment may be implemented in combination as much as possible, and in that case, the combined effect can be obtained. Furthermore, the above-described embodiments include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements.

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  • Health & Medical Sciences (AREA)
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  • Cardiology (AREA)
  • Veterinary Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Vascular Medicine (AREA)
  • Biophysics (AREA)
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  • Animal Behavior & Ethology (AREA)
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  • Dentistry (AREA)
  • Physiology (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
PCT/JP2022/002598 2021-01-25 2022-01-25 カフ及び血圧測定装置 Ceased WO2022158605A1 (ja)

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CN202280010495.9A CN116867430A (zh) 2021-01-25 2022-01-25 袖带和血压测定装置
DE112022000804.0T DE112022000804T5 (de) 2021-01-25 2022-01-25 Manschette und blutdruckmessvorrichtung
US18/355,071 US20230355115A1 (en) 2021-01-25 2023-07-19 Cuff and blood pressure measurement device

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JP2021-009600 2021-01-25
JP2021009600A JP7581913B2 (ja) 2021-01-25 2021-01-25 カフ及び血圧測定装置

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Citations (5)

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Publication number Priority date Publication date Assignee Title
JPS6272315A (ja) * 1985-09-25 1987-04-02 松下電工株式会社 血圧計のカフ帯
JPS6472726A (en) * 1987-09-14 1989-03-17 Matsushita Electric Works Ltd Ischemia cuff of hemomanometer
JP2019118644A (ja) * 2018-01-05 2019-07-22 オムロン株式会社 カフ構造体、血圧測定装置、カフ構造体の製造方法、及び血圧測定装置の製造方法
JP2019122529A (ja) * 2018-01-15 2019-07-25 オムロン株式会社 血圧測定装置及び血圧測定装置の製造方法
JP2020103634A (ja) * 2018-12-27 2020-07-09 オムロンヘルスケア株式会社 血圧測定装置用カフの製造方法

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Publication number Priority date Publication date Assignee Title
JPS59232531A (ja) * 1983-06-15 1984-12-27 松下電工株式会社 血圧計
JP4148155B2 (ja) 2004-02-24 2008-09-10 松下電工株式会社 血圧計
JP4595525B2 (ja) * 2004-12-20 2010-12-08 オムロンヘルスケア株式会社 血圧計用カフおよびこれを備えた血圧計
JP5600021B2 (ja) * 2010-03-26 2014-10-01 テルモ株式会社 電子血圧計
JP7033007B2 (ja) 2017-06-28 2022-03-09 シチズン時計株式会社 血圧計用の腕帯
JP6976841B2 (ja) * 2017-12-28 2021-12-08 オムロン株式会社 血圧測定装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6272315A (ja) * 1985-09-25 1987-04-02 松下電工株式会社 血圧計のカフ帯
JPS6472726A (en) * 1987-09-14 1989-03-17 Matsushita Electric Works Ltd Ischemia cuff of hemomanometer
JP2019118644A (ja) * 2018-01-05 2019-07-22 オムロン株式会社 カフ構造体、血圧測定装置、カフ構造体の製造方法、及び血圧測定装置の製造方法
JP2019122529A (ja) * 2018-01-15 2019-07-25 オムロン株式会社 血圧測定装置及び血圧測定装置の製造方法
JP2020103634A (ja) * 2018-12-27 2020-07-09 オムロンヘルスケア株式会社 血圧測定装置用カフの製造方法

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CN116867430A (zh) 2023-10-10
US20230355115A1 (en) 2023-11-09
JP2022113384A (ja) 2022-08-04
DE112022000804T5 (de) 2024-02-15

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