JP2009072548A - Cuff for measuring blood pressure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide safe and proper measurement even if intermittently used for a long time. <P>SOLUTION: The cuff for measuring blood pressure has an air bag 10 constituted of an inflatable material, a tube 12 secured to the air bag 10 and for feeding and discharging air, an outer bag 20 for housing the air bag 10, and a sheet 13 integrally provided in an arm side of the air bag 10 when wounding the outer bag 20 around the arm, constituted of at least one layer, and constituted of a raw material generating no wrinkles and holding a rounded-shape, leaving no wrinkles after being folded and hardly generating folding deformation when wound around the arm. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a blood pressure measurement cuff for measuring blood pressure by wrapping around an arm (upper arm) of a subject or the like and applying pressure by expansion, and particularly relates to a blood pressure measurement cuff suitable for long-time use. It is.

  A conventional blood pressure measurement cuff has a configuration in which an air bag made of rubber or the like is housed in an exterior bag made of a non-stretchable cloth or the like. In this blood pressure measurement cuff, a sheet having a loop flocking surface of a hook-and-loop fastener is attached to a part of one surface of the outer bag, and a hook flocking surface of a hook-and-loop fastener is formed on a part of the other surface of the outer bag. A sheet is affixed and wound around an arm so that the loop and hook are engaged and fixed.

  After the blood pressure measurement cuff is wrapped around the arm as described above, air is injected from the tube connected to the air bag to inflate the air bag to inhibit the blood flow, and then the air is exhausted from the tube. The blood pressure is measured by gradually reducing the pressure.

  In such a conventional blood pressure measurement cuff, when the air bag is inflated in addition to the fact that wrinkles occur on the side that comes into contact with the arm in the state of being wrapped around the arm and the cloth of the outer bag is hard, The skin of the arm may be pinched, and in some cases, subcutaneous bleeding may occur.

  In view of the above, the present inventors prevent the generation of wrinkles that are harmful in the outer bag when used around a predetermined part of the living body, and prevent the transmission of fine wrinkles to the skin surface of the living body, A blood pressure measurement cuff has been proposed that can reliably prevent the occurrence of subcutaneous bleeding due to localized strong friction against the skin of a living body and can easily achieve proper close fixation to a predetermined part of the living body (Japanese Patent Application No. 2006-259881). issue).

  The blood pressure measurement cuff according to this proposal is a blood pressure measurement cuff in which an inflatable bag is accommodated in an exterior bag. The first sliding sheet is movably disposed between the outer side and the second sliding sheet on the outer side of the inner peripheral side surface of the outer bag, and is joined to the outer bag at both longitudinal ends thereof. The configuration is adopted.

  In addition, a sphygmomanometer cuff can be formed on a living body by forming a fluid bag (a sheet material constituting the fluid bag has a thickness of 0.15 m or less) using a sheet material thinner than a conventionally used sheet material. There has been proposed one that reduces the difference between the peripheral length of the outer peripheral sheet and the peripheral length of the inner peripheral sheet in the wound state and reduces the influence of wrinkles generated on the inner peripheral sheet (Patent Document 1). reference).

  However, the effect of preventing subcutaneous bleeding by the blood pressure measurement cuff is limited, and it cannot be said to be sufficient particularly when used intermittently for a long time.

  In addition, in the conventional blood pressure measurement cuff, the tube connected to the air bag is soft, and it becomes impossible to measure or the air bag expands due to bending or under the body of the subject etc. There were problems such as continuing to press on the arm as it was.

  On the other hand, it is proposed that the thickness of the tube made of an elastic material connected to the compression band is configured to periodically change in one circumferential direction and to increase and decrease in a symmetrical position with respect to the axis. (See Patent Document 2). With this configuration, the tube is less likely to be bent during handling for blood pressure measurement, compared to a tube in which the wall thickness is formed so that the increase and decrease coincide with each other at a symmetrical position with respect to the axis. Moreover, even if the tube is bent, the flow cross section of the pressure gas is ensured.

However, the above-described configuration of the tube has a problem that the hole shape of the tube cross section is not circular, and it is difficult to appropriately couple with a connector having a circular hole shape of a conventionally used cross section.
JP 2006-218178 A JP 2004-223102 A

  The present invention has been made in view of the problems of the blood pressure measurement cuff as described above, and its purpose is to enable safe and appropriate measurement even when used intermittently for a long time. Is to provide a blood pressure measurement cuff.

  A blood pressure measurement cuff according to the present invention includes an air bag made of a material that expands and contracts, a tube attached to the air bag for air supply and exhaust, an exterior bag for housing the air bag, When the outer bag is wrapped around the arm, the bag is fixedly provided between the surface of the air bag located on the arm side and the surface of the outer bag facing the surface of the air bag, and at least one layer is provided on the arm. It is characterized by comprising a sheet made of a material that retains an R shape without generating wrinkles when wound, and does not remain wrinkled even after being folded, and is not easily generated.

  In the blood pressure measurement cuff according to the present invention, the sheet is integrally provided on an arm side surface of the air bag when the exterior bag is wound around the arm.

  In the blood pressure measurement cuff according to the present invention, the sheet is integrally provided on a surface of the outer bag facing the arm side surface of the air bag when the outer bag is wound around the arm. .

  The blood pressure measurement cuff according to the present invention is characterized in that an air passage leading to an air vent is formed between the seat and the air bag.

  In the blood pressure measurement cuff according to the present invention, the tube has an internal passage formed by a circular hole in the center in the cross-sectional shape of the tube, and a tube main body that extends concentrically outward with respect to the internal passage in the cross-sectional shape of the tube. And a thick portion that protrudes outward from the tube main body and prevents the internal passage from being blocked when the tube main body is bent.

  In the cuff for measuring blood pressure according to the present invention, the sheet is configured by a loop flocking surface in a hook-and-loop fastener.

  In the blood pressure measurement cuff according to the present invention, the outer bag is made of a thin cloth material that does not generate wrinkles when wound around the arm and does not remain wrinkled even after being folded. Features.

  The blood pressure measurement cuff according to the present invention is characterized in that the exterior bag is provided with a scale display indicating the thickness of the user's arm suitable for use of the cuff.

  According to the blood pressure measurement cuff of the present invention, when the outer bag is wrapped around the arm, the air bag is positioned between the surface of the air bag positioned on the arm side and the surface of the outer bag facing the surface of the air bag. The sheet provided in the material is at least one layer, keeps the R shape without generating wrinkles when wound around the arm, and does not leave wrinkles even after being folded. Since it is configured, even when used for a long time, the skin of the arm is not pinched by the occurrence of wrinkles, and it is possible to prevent subcutaneous hemorrhage and perform appropriate measurement safely.

  According to the blood pressure measurement cuff according to the present invention, the sheet integrally provided on the side surface of the arm of the air bag when the outer bag is wound around the arm has the above-described configuration, and therefore is used intermittently for a long time. Even in this case, the skin of the arm is not pinched by the occurrence of wrinkles, and it is possible to prevent subcutaneous bleeding and perform the measurement safely and appropriately.

  According to the blood pressure measurement cuff of the present invention, the sheet integrally provided on the surface of the outer bag facing the arm side surface of the air bag when the outer bag is wound around the arm has the above-described configuration. Therefore, even when used for a long time, the skin of the arm is not pinched by the occurrence of wrinkles, and it is possible to prevent subcutaneous bleeding and to perform appropriate measurement safely.

  Further, according to the blood pressure measurement cuff according to the present invention, an air passage leading to the air vent is formed between the seat and the air bag, so that the air that has entered between the seat and the air bag is Problems such as expansion and peeling of the sheet from the air bag can be prevented.

  According to the blood pressure measurement cuff of the present invention, the tube has an inner passage formed by a circular hole at the center in the cross-sectional shape of the tube, and an outer side concentrically with respect to the inner passage in the cross-sectional shape of the tube. Since the tube main body portion extends to the outside and the thick portion prevents the internal passage from being blocked when the tube main body portion is bent, the internal passage is blocked. Without this, measurement can be performed safely and appropriately even when used for a long time.

  Further, according to the blood pressure measurement cuff according to the present invention, the outer bag is made of a thin cloth material that does not generate wrinkles when wound around the arm and does not remain wrinkles after being folded. Therefore, even in the case of intermittent use for a long time, the skin of the arm is not pinched due to the generation of wrinkles of the outer bag, and it is possible to prevent subcutaneous bleeding and perform appropriate measurement safely.

  Further, according to the blood pressure measurement cuff according to the present invention, the exterior bag is provided with a scale display indicating the thickness of the user's arm that is suitable for use of the cuff. It is possible to easily determine whether or not the cuff is suitable for use by simply placing the arm on the scale display and comparing it, and there is an advantage that appropriate measurement can be ensured.

  Embodiments of a blood pressure measurement cuff according to the present invention will be described below with reference to the accompanying drawings. In each figure, the same components are denoted by the same reference numerals, and redundant description is omitted. As shown in FIG. 1, the blood pressure measurement cuff of the embodiment has an air bag 10 and an outer bag 20 as main components.

<Example 1>
The air bag 10 is made of a material that expands and contracts, such as rubber. A connector 11 is coupled to the side, and the connector 11 is inserted into and coupled to the tube 12. The sheet 13 is attached to one surface of the air bag 10, and the air bag 10 and the sheet 13 are integrated.

  As shown in FIG. 2, the tube 12 connected to the connector 11 has a shape in which the outer wall facing the diameter of the cylinder is thickened, and the tube 12 is not bent even when the tube is bent. In this structure, the passage 41 is not blocked. That is, a tube main body 41 having a circular hole that is opened at the center of the cross section of the tube 12 and a concentric circle extending outward from the internal passage 41 and having a cross section sandwiched between two circular circles. And a thick portion 43, 43 that is a thick outer wall portion that is formed at a position facing the diameter of the tube main body portion 42 and protrudes outward from the tube main body portion 42.

  The sheet 13 is made of a material that is at least one layer and maintains a round shape without generating wrinkles when wound around the arm, and does not leave a wrinkle even after being folded, and does not easily cause broken wrinkles. . Examples of such a material include a loop flocking surface in a hook-and-loop fastener such as Velcro tape (registered trademark).

  The thickness of the sheet 13 is preferably 0.5 mm to 3 mm. In other words, generation of wrinkles was observed when the thickness was 0.4 mm or less, but the pulse wave could not be detected properly at 3.5 mm or more exceeding 3 mm. Therefore, it is desirable to adopt in the range of 0.5 mm to 3 mm.

  The back surface of the sheet 13 is coated with, for example, a heat-welding type adhesive, and as shown in FIGS. 1 and 3 (a), the four strips are welded and fixed at the four strips in the longitudinal direction. The adhesion part 14 of this arises. The end portion in the longitudinal direction of the sheet 13 is not welded, and constitutes an air vent 15 that communicates with the outside air by opening. An air passage 16 leading to the air vent 15 is formed between the seat 13 and the air bag 10. For this reason, particularly when used in the tropical or subtropical region, even if the air that has entered between the seat 13 and the air bag 10 expands, it escapes from the air passage 16 through the air vent 15, It is possible to prevent problems such as the sheet 13 being peeled off from the air bag 10 due to air expansion that occurs when the material is welded and fixed. Note that the sheet 13 may be welded and fixed in the air bag 10 as shown in FIG.

  The outer bag 20 has a length that is approximately twice the length of the air bag 10 in the longitudinal direction, and no wrinkles are generated when the bag is wrapped around the arm, and no wrinkles remain even after being folded. It is composed of a thin cloth material that does not easily occur. Examples of the cloth material include polyester, nylon, and rayon.

  The exterior bag 20 is configured by stacking two cloths made of the above materials, and has a storage chamber 21 in which the air bag 10 is stored. A large opening 22 for inserting or removing the air bag 10 from the storage chamber 21 is formed at one end in the longitudinal direction of the outer bag 20. Further, in the state in which the air bag 10 is stored in the storage chamber 21, a small opening 23 for projecting the tube 12 outward is formed in a portion of the outer bag 20 where the connector 11 coupled to the tube 12 is located.

  On the surface opposite to the storage chamber 21 across the center line of the outer bag 20 and on the inner side when the outer bag 20 is wrapped around the arm, a quarter of the length of the outer bag 20 in the longitudinal direction is provided. A hook flocking surface 24 of a hook-and-loop fastener having a certain length is attached. Further, the surface to which the hook flocking surface 24 of the hook-and-loop fastener is attached is the surface of the outer packaging bag 20, and the loop flocking surface 25 of the hook-and-loop fastener is attached to the position of the storage chamber 21. (Fig. 4).

  The air bag 10 is folded into the storage chamber 21 of the outer bag 20 configured as described above and inserted through the large opening 22 as shown by the arrow in FIG. 1, and the tube 12 is removed from the small opening 23. The air bag 10 is expanded in the storage chamber 21 and closed by sewing the large opening 22 to complete the blood pressure measurement cuff as shown in FIG.

  As shown in the cross-sectional view of FIG. 6, the sheet 13 of the air bag 10 faces the side of the outer bag 20 on which the hook flocking surface 24 is adhered, and the winding portion 26 facing this sheet 13 is on the arm. Wrapped. When the sphygmomanometer measurement cuff is wound around the arm, the sheet 13 forms an R shape when wound around the arm, and the R shape is maintained even if the air bag 10 is inflated without generating wrinkles. The winding portion 26 in contact with the arm also has a circular cross section, so that no wrinkles occur in the state of being wound around the arm, and the cause of subcutaneous bleeding does not occur.

  In addition, even if an arbitrary portion of the air bag 10 is folded for the purpose of storage or the like, the sheet 13 has a characteristic that folds do not remain without being folded even after being folded. In the state of being wound around the arm, it exhibits an R shape and no wrinkles are generated. In addition, the wound portion 26 of the outer bag 20 is also made of a thin cloth material that does not leave any wrinkles even after being folded and does not easily cause broken wrinkles, and does not cause a cause of subcutaneous bleeding.

  Further, the cross section of the tube 12 is as shown in FIG. 2, and it is particularly difficult to bend in the direction connecting the thick portions 43, 43, thereby preventing the internal passage 41 that is a hole from being blocked. For this reason, even when the subject is bent for a long time, such as when the subject moves his arm, the tube 12 is not bent, and the internal passage 41 is not blocked even when placed on the subject. Blood pressure measurement can be continued stably and appropriately. In this embodiment, the thick portions 43, 43 are provided at two positions connecting the diameters in the cross section of the tube 12, but the number and shape of the thick portions are not limited, and a part of the tube main body portion is made thick. What is necessary is just to be comprised so that obstruction | occlusion of the internal channel | path 41 may be prevented.

<Example 2>
In the blood pressure measurement cuff according to the second embodiment, as in the first embodiment, as shown in FIGS. 7 and 8, the sheet 13 is positioned on the arm side when the outer bag 20 is wrapped around the arm. The air bag 10 is fixedly provided between the surface of the air bag 10 and the surface of the outer bag 20 facing the surface of the air bag 10.

  Specifically, the sheet 13 is sewn to the surface of the outer bag 20 that faces the arm side surface of the air bag 10 when the outer bag 20 is wound around the arm, and is integrally fixed. The orientation of the hook flocking surface and the loop flocking surface of the sheet 13 is not particularly problematic. That is, either the hook flocking surface or the loop flocking surface of the sheet 13 may be in a state of facing the arm side surface in the air bag 10.

  Reference numeral 51 denotes a seam on which the sheet 13 is sewn. In this example, the plane is sewn so as to go around the edge of the square sheet 13, and is sewn along a diagonal line of the quadrangle. . In this sewing method, when the sheet 13 and the winding portion 26 in contact with the sheet 13 are wound around the arm, no crease is generated and the R shape is maintained, and the crease does not remain after the fold and the crease does not remain. Thus, for example, as long as it is integrated with the exterior bag 20 so that several stitches can be inserted vertically and horizontally instead of being sewn along the diagonal line of the quadrangle, it is not limited to the example of FIG.

  For example, FIG. 9 shows another sewing method. In the example of FIG. 9, the seam 51 is formed by sewing so that the plane wraps around the edge of the square sheet 13, and the seam 51 is formed by sewing so that the long side of the square is divided into two equal parts. Two squares are generated, and stitches 51 are formed along the diagonal lines of the two squares. Further, the method of fixing the sheet 13 is not necessarily limited to sewing, and it is possible to employ adhesion or the like.

  The configuration of the blood pressure measurement cuff according to the second embodiment is the same as the configuration of the blood pressure measurement cuff according to the first embodiment except for the above. In the blood pressure measurement cuff according to the embodiment, the air bag 10 is inserted and stored in the storage chamber 21 of the outer bag 20 to which the sheet 13 is fixed, and can be used as shown in FIG. it can. Even in this manner, like the blood pressure measurement cuff according to the first embodiment, the sheet 13 and the winding portion 26 in contact with the sheet 13 have a circular cross section, and no wrinkles are generated in the state of being wound around the arm. The effect that the cause of subcutaneous bleeding does not occur can be obtained.

  Moreover, in the cuff for blood pressure measurement which concerns on a 1st Example and a 2nd Example, in the surface where the loop-shaped flocking surface 25 of a surface fastener is stuck among the surfaces of the exterior bag 20, for example, Scale displays 61 and 62 as shown in FIG. 10 are provided at the end where the loop-shaped flocked surface 25 is not attached.

  The scale displays 61 and 62 can be printed by an inkjet method or the like. Appropriate printing colors for the scale displays 61 and 62 are employed according to the color of the outer bag 20. The scale displays 61 and 62 are marks indicating the thickness of the arm of the user for which the cuff is preferably used, and have portions of width bars 61a and 62a corresponding to the width of the arm, respectively, and the width bars 61a, Side bars 61b and 62b are provided on both sides of 62a and indicate the direction along the side of the arm.

  When the blood pressure measurement cuff is used, for example, the arm D is shown in FIG. 10 with respect to the scale displays 61 and 62 so that the elbow side protrudes from the outer bag 20 and the hand side is located at the center side of the outer bag 20. Place like this. At this time, as shown in FIG. 10, if the arm D is on the inside of the side bars 61 b and 61 b of the scale display 61 and the scale display 62 is hidden by the arm D, the blood pressure measurement cuff is used. Indicates that it is suitable for

  That is, the scale display 61 indicates the maximum thickness among the preferable arm thicknesses, and the scale display 62 indicates the minimum thickness among the preferable arm thicknesses. If the scale display 61, 62 indicates that the blood pressure measurement cuff is not suitable, a blood pressure measurement cuff suitable for a user with a different length or width can be used. Blood pressure can be measured.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and many other design changes can be made without departing from the spirit of the present invention.

The top view which shows the state which isolate | separated the air bag and the exterior bag in the 1st Example of the cuff for blood pressure measurement which concerns on this invention. Sectional drawing of the tube used for the Example of the cuff for blood pressure measurement which concerns on this invention. 3A is a cross-sectional view taken along the line AA in FIG. 1, and FIG. 3B is a cross-sectional view in which the arrangement of the sheets is changed in FIG. The top view which shows the back surface of the exterior bag in the cuff for blood pressure measurement which concerns on this invention shown in FIG. The top view which shows the state which accommodated the air bag in the exterior bag in the 1st Example of the cuff for blood pressure measurement which concerns on this invention. BB sectional drawing of FIG. The top view which shows the state which took out the air bag in 2nd Example of the cuff for blood pressure measurement which concerns on this invention. CC sectional drawing of the state which put the air bag in the 2nd Example of FIG. The top view which shows the principal part of the modification which concerns on the 2nd Example of the cuff for blood pressure measurement which concerns on this invention. The top view which shows the principal part of the Example of the design of the cuff surface of the cuff for blood pressure measurement which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Air bag 11 Connector 12 Tube 13 Sheet | seat 14 Bonding part 15 Air vent 16 Air passage 20 Exterior bag 21 Storage chamber 22 Large opening 23 Small opening 24 Hook flocking surface 25 Loop flocking surface 26 Winding part 41 Internal passage 42 Tube Main body 43 Thick part 51 Seam 61, 62 Scale display 61a, 62a Width bar 61b, 62b Side bar

Claims (8)

An air bag made of a material that expands and contracts;
A tube attached to the air bag for supplying and exhausting air;
An exterior bag for storing the air bag;
When the outer bag is wound around the arm, the arm is fixedly provided between the surface of the air bag located on the arm side and the surface of the outer bag facing the surface of the air bag, and the arm is at least one layer. A blood pressure measurement comprising: a sheet made of a material that retains an R shape without generating wrinkles when wound around the sheet, and does not remain wrinkled even after folding For cuff. The blood pressure measurement cuff according to claim 1, wherein the sheet is integrally provided on a side surface of the arm of the air bag when the outer bag is wound around the arm. 2. The blood pressure measurement cuff according to claim 1, wherein the sheet is integrally provided on a surface of the outer bag facing an arm side surface of the air bag when the outer bag is wound around an arm. The blood pressure measurement cuff according to claim 2, wherein an air passage leading to an air vent is formed between the seat and the air bag. Tube
In the cross-sectional shape of the tube, an internal passage formed by a central circular hole, and
In the cross-sectional shape of the tube, a tube main body that extends concentrically outward with respect to the internal passage,
Projects outwardly from the tube body portion, according to any one of claims 1 to 4, characterized in that it has a thick portion for preventing clogging of the interior passage in a state in which the tube body portion is bent Blood pressure cuff. The blood pressure measurement cuff according to any one of claims 1 to 5, wherein the sheet is configured by a loop flocking surface in a hook-and-loop fastener. 7. The outer bag is made of a thin cloth material that does not generate wrinkles when wound around an arm and does not remain even after being folded. The blood pressure measurement cuff according to claim 1. The blood pressure measurement cuff according to any one of claims 1 to 7, wherein the exterior bag is provided with a scale display indicating a thickness of a user's arm suitable for use of the cuff. .

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