JP3168377U - Cuff for blood pressure information measuring device and blood pressure information measuring device provided with the same - Google Patents

Abstract

A sphygmomanometer cuff is provided in which even when an air bag is formed as a laminated bag body by bending and laminating a single resin sheet, the measurement accuracy does not decrease. A sphygmomanometer cuff includes an air bag 30A that expands and contracts when fluid enters and exits. The air bag 30A is formed by bending and laminating a single resin sheet having a textured surface that is one main surface that has been subjected to a textured process and a non-textured surface that is the other major surface that has not been textured. It includes a first bag body 31A and a second bag body 31B that are stacked in the radial direction in the mounted state. A sheet-shaped adhesion preventing member 38 for preventing the non-textured surfaces from coming into close contact with each other is accommodated in the space inside the first bag body 31 </ b> A having an inner surface formed of a non-textured surface. [Selection] Figure 4

Description

  The present invention relates to a cuff for a blood pressure information measuring device and a blood pressure information measuring device including the same, and in particular, blood pressure information measuring including a fluid bag configured as a laminated bag body by bending and laminating a single resin sheet. The present invention relates to a device cuff and a blood pressure information measuring device including the device cuff.

  Measuring blood pressure information is very important for knowing the health condition of a subject. In recent years, the systolic blood pressure value (hereinafter referred to as “maximum blood pressure”), the diastolic blood pressure value (hereinafter referred to as “minimum blood pressure”), etc., which have been widely recognized as useful indicators for health care, have been widely used. However, the present invention is not limited, and attempts have been made to capture the cardiac load and the degree of arteriosclerosis by measuring the pulse wave.

  The blood pressure information measuring device is a device for obtaining an index for health management based on the measured blood pressure information, and further utilization is expected in the fields of early detection, prevention, treatment, etc. of cardiovascular diseases. . The blood pressure information includes a wide variety of information on the circulatory system, such as various indices indicating maximum blood pressure, minimum blood pressure, average blood pressure, pulse wave, pulse, and degree of arteriosclerosis.

  In general, a blood pressure information measuring device cuff (hereinafter also simply referred to as a cuff) is used for measuring blood pressure information. Here, the cuff means a band-like or annular structure including a fluid bag having an inner space, which can be attached to a part of the body, and fluid such as gas or liquid is injected into the inner space. This means that the fluid bag is inflated and contracted to be used for measuring blood pressure information. The cuff is also called an armband or a manchette.

  Usually, a cuff is comprised by the air bag for compressing a biological body, and the exterior cover which includes this. In order to measure blood pressure information with high accuracy, it is necessary to sufficiently and reliably block the artery, and it is important to evenly compress the wearing part covered with the cuff in the wearing state with an air bag. Become.

  As a cuff capable of realizing such uniform compression of an artery, there is known a cuff in which folds are formed on both sides of an air bag as disclosed in Japanese Patent Laid-Open No. 2001-224558 (Patent Document 1). . In the cuff as disclosed in Patent Document 1, the air bag expands more evenly in the width direction when the air bag expands when the air bag expands. Pressure can be realized.

JP 2001-224558 A

  However, the air bag provided in the cuff for a sphygmomanometer disclosed in Patent Document 1 is configured as a laminated bag body including the above-described bag by overlapping a plurality of resin sheets and welding them together. For this reason, there is a problem in that the production becomes complicated and the production cost is pressed. Therefore, an air having a configuration similar to that of the air bag disclosed in the above-mentioned Patent Document 1 is obtained by bending and stacking a single resin sheet so that the cross-sectional shape is substantially “8”. Manufacturing bags is carried out.

  By the way, when the air bag is composed of a resin sheet as described above, there is a phenomenon in which the resin sheets adhere to each other particularly when the air bag is stored in a high temperature environment or when it is stored for a long time. It will occur. If this phenomenon occurs, this will cause the air bag to not sufficiently inflate at the time of measurement and cause a decrease in the compression force on the artery, which will have a significant adverse effect on the accuracy of the measured blood pressure value. It can also be an effect. For this reason, it is common to apply a graining process in which fine irregularities are imparted to the surface of the resin sheet that defines the inner surface of the air bag.

  Here, generally, as the resin sheet constituting the air bag, one formed by extrusion molding is used, and at the time of the extrusion molding, embossing is simultaneously performed by transfer. However, a resin sheet formed by extrusion molding can usually be subjected to a texture on only one side of its main surface. This depends on the molding conditions such as the thickness and material of the resin sheet to be formed, the extrusion speed at the time of molding, and the shape of the texture to be formed, but it is difficult to apply the texture on both sides unless conditions are met. In the molding conditions of the resin sheet used for the air bag, the conditions are not satisfied.

  Therefore, when the air bag is manufactured by bending one resin sheet as described above, one of the spaces to be formed in the interior is the textured surface of the resin sheet. Although it will be prescribed | regulated, about the other space, this will be prescribed | regulated by the non-textured surface of a resin sheet. Therefore, unless any countermeasure is taken, the measurement accuracy is reduced due to the above-described adhesion phenomenon.

  Therefore, the present invention has been made to solve the above-described problems, and even when a fluid bag is formed as a laminated bag body by bending and laminating a single resin sheet, the blood pressure does not decrease the measurement accuracy. An object of the present invention is to provide a cuff for an information measuring device and a blood pressure information measuring device including the same.

  The cuff for a blood pressure information measurement device according to the present invention includes a fluid bag that expands and contracts when fluid enters and exits, and takes a substantially annular form in a mounted state wound around a mounted site. The fluid bag is formed by bending and laminating a single resin sheet having a textured surface that is one textured surface and a non-textured surface that is not textured. And includes a first bag body and a second bag body stacked in the radial direction in the mounted state. In the first bag body, the embossed surface located at a portion near one end in the width direction of the resin sheet is superimposed on the non-textured surface of the portion located substantially in the center in the width direction of the resin sheet. The resin sheet is formed in a loop shape and is formed by welding at least a part of the overlapping portion, and has a first expansion / contraction space defined by the non-textured surface therein. . The second bag body is configured such that the non-textured surface located at a portion near the other end in the width direction of the resin sheet is overlapped with the textured surface of a portion located substantially in the center in the width direction of the resin sheet. The resin sheet is formed in a loop shape and at least a part of the overlapping portion is welded, and has a second expansion / contraction space defined by the textured surface. In the cuff for a blood pressure information measuring device based on the present invention, a sheet-like adhesion preventing member for preventing the non-textured surfaces defining the first expansion / contraction space from adhering to the first bag body. Contained.

  In the cuff for a blood pressure information measuring device based on the present invention, it is preferable that the adhesion preventing member is made of cloth.

  In the blood pressure information measurement device cuff based on the present invention, it is preferable that the adhesion preventing member has air permeability.

  In the cuff for a blood pressure information measurement device according to the present invention, it is preferable that the adhesion preventing member is attached to a predetermined region of the non-textured surface that defines the first expansion / contraction space.

  In the cuff for a blood pressure information measuring device according to the present invention, it is preferable that the first bag body is positioned radially outside the second bag body in the mounted state. In that case, it is preferable that the adhesion preventing member is disposed so as to cover almost the entire inner surface of the outer peripheral side wall located on the outermost side in the radial direction of the fluid bag in the mounted state.

  In the cuff for a blood pressure information measurement device according to the present invention, the first expansion / contraction space and the second expansion / contraction space are provided through a communication hole provided at a substantially center in the width direction of the resin sheet. It is preferable to communicate.

  The blood pressure information measuring device based on the present invention is a blood pressure information acquiring device for acquiring blood pressure information by using the cuff for a blood pressure information measuring device based on the present invention, a pressure increasing / decreasing mechanism for increasing / decreasing the fluid bag, and the fluid bag. Department.

  According to the present invention, even when a fluid bag is formed as a laminated bag body by bending and laminating a single resin sheet, the cuff for a blood pressure information measuring device and the blood pressure information measuring device including the same are not reduced in measurement accuracy. Can be provided.

It is a schematic perspective view of the sphygmomanometer in Embodiment 1 of the present invention. It is an expanded view at the time of seeing the cuff for blood pressure monitors in Embodiment 1 of this invention from the outer peripheral surface side. It is sectional drawing of the cuff for blood pressure monitors in Embodiment 1 of this invention. It is an expanded partial sectional view of the air bag of the cuff for blood pressure monitors in Embodiment 1 of the present invention. It is a general | schematic fragmentary perspective view of the air bag of the cuff for blood pressure monitors in Embodiment 1 of this invention. It is a figure which shows the structure of the functional block of the sphygmomanometer in Embodiment 1 of this invention. It is a figure which shows the flow of the measurement operation | movement of the blood pressure meter in Embodiment 1 of this invention. It is sectional drawing of the cuff for blood pressure monitors which concerns on the modification based on Embodiment 1 of this invention. It is sectional drawing of the cuff for blood pressure monitors in Embodiment 2 of this invention. It is an expanded partial sectional view of the air bag of the cuff for blood pressure monitors in Embodiment 2 of the present invention. It is sectional drawing of the cuff for blood pressure monitors which concerns on the modification based on Embodiment 2 of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the first and second embodiments and the modifications thereof described below, blood pressure values such as the highest blood pressure and the lowest blood pressure can be measured as the blood pressure information measurement device cuff and the blood pressure information measurement device including the same. The upper arm type sphygmomanometer cuff and the sphygmomanometer equipped with the cuff will be described as an example. In the following, the same or common parts are denoted by the same reference numerals in the drawings, and the description thereof will not be repeated individually.

(Embodiment 1)
FIG. 1 is a schematic perspective view of a sphygmomanometer according to Embodiment 1 of the present invention, and FIG. 2 is a development view when the sphygmomanometer cuff according to Embodiment 1 of the present invention is viewed from the outer peripheral surface side. . FIG. 3 is a cross-sectional view taken along line III-III shown in FIG. 2 of the sphygmomanometer cuff according to the present embodiment, and FIG. 4 is an enlarged partial cross-sectional view of the air bag shown in FIG. FIG. 5 is a schematic partial perspective view of the air bag shown in FIGS. First, the structure of the sphygmomanometer and the sphygmomanometer cuff in the present embodiment will be described with reference to FIGS.

  As shown in FIG. 1, the sphygmomanometer 1 includes a main body 10, a cuff 20, and an air tube 60. The main body 10 has a box-shaped casing 11, and a display unit 42 and an operation unit 43 are provided on the upper surface thereof. The main body 10 is used by being placed on a placement surface such as a table at the time of measurement. The cuff 20 has a belt-like form that can be wound around the upper arm as a wearing part, and is covered with an exterior cover 21. The cuff 20 is worn and used by being wound around the upper arm during measurement. The air tube 60 connects the main body 10 and the cuff 20 that are separated from each other, and is formed of a flexible tube.

  As shown in FIGS. 1 to 3, the cuff 20 includes the above-described exterior cover 21, an air bag 30 </ b> A as a fluid bag, a curler 26 as a curved elastic plate, a reinforcing sheet 24, and a noise reduction sheet 25. Mainly prepared.

  As shown in FIGS. 1 to 3, the exterior cover 21 has a belt-like and bag-like shape that is substantially rectangular in plan view. The outer cover 21 has an outer cover member 21a that is positioned radially outward when the cuff 20 is wound around the upper arm, and an upper arm that is positioned radially inner when the cuff 20 is wound around the upper arm. The inner cover member 21b is brought into contact with the surface of the inner cover member 21b. The inner cover member 21b is overlapped, and the periphery of the inner cover member 21b is covered with the bias tape 21c and joined (for example, stitching or welding).

  In the space inside the exterior cover 21 defined by the outer cover member 21a and the inner cover member 21b, the air bag 30A, the reinforcing sheet 24, the curler 26, and the noise reduction sheet 25 are stacked in this order from the inner side. Has been placed. Among these, as shown in FIG. 2, the air bag 30 </ b> A is unevenly distributed at a position near one end in the longitudinal direction of the exterior cover 21.

  As shown in FIGS. 1 and 2, surface fasteners 22 a and 22 b are respectively provided on the outer peripheral surface near one end in the longitudinal direction and the inner peripheral surface near the other end of the outer cover 21. Here, the hook and loop fastener 22a is made of, for example, a hook fastener, and the hook and loop fastener 22b is made of, for example, a loop fastener. These hook-and-loop fasteners 22a and 22b are locked when the outer cover 21 is wound around the upper arm and the portion near the one end and the portion near the other end of the outer cover 21 are overlapped on the surface of the upper arm. To do. Thereby, the exterior cover 21 is fixed to the upper arm, and the cuff 20 is fixedly attached to the upper arm.

  Among the outer covers 21, as the outer cover member 21a, a member having less elasticity than the inner cover member 21b is used in order to prevent the air bag 30A from expanding toward the radially outer side. On the other hand, among the outer covers 21, as the inner cover member 21b, a member sufficiently rich in elasticity is preferably used so that the compression force applied to the upper arm by the expansion of the air bag 30A is not hindered by the inner cover member 21b. Used. From such a viewpoint, as the exterior cover 21, a fabric made of synthetic fibers such as polyamide (PA) and polyester capable of adjusting the size of stretchability relatively easily is used.

  As shown in FIGS. 3 to 5, the air bag 30 </ b> A is made of a bag-like member formed using a single resin sheet, and the single resin sheet is bent and stacked into a desired shape to form a predetermined portion thereof. Is formed into a bag shape by welding. Here, the resin sheet is formed by extrusion molding, and one of the main sheets that has been subjected to embossing (that is, processing in which minute irregularities are imparted to the surface of the resin sheet by transfer during extrusion molding). It has a textured surface that is a surface and a non-textured surface that is the other principal surface not subjected to the textured process.

  30 A of air bags are comprised by the laminated bag body which has 31 A of 1st bag bodies arrange | positioned radially outside in a mounting state, and the 2nd bag body 31B arrange | positioned radially outside in a mounting state, Both the first bag body 31A and the second bag body 31B are formed of a single resin sheet.

  In the first bag body 31A, a textured surface located at a portion near one end in the width direction of the single resin sheet is superimposed on a non-textured surface of a portion located substantially in the center of the single resin sheet in the width direction. As described above, the single resin sheet is curved in a loop shape, and a part of the overlapping portion is welded and fixed. 31 A of 1st bag bodies have the 1st expansion / contraction space prescribed | regulated by the non-textured surface of the said resin sheet in the inside.

  In the second bag body 31A, a non-textured surface located at a portion near the other end in the width direction of the single resin sheet is superimposed on a textured surface of the single resin sheet positioned substantially at the center in the width direction. As described above, the single resin sheet is curved in a loop shape, and a part of the overlapping portion is welded and fixed. The 2nd bag 31B has the 2nd expansion-contraction space prescribed | regulated by the embossed surface of the said resin sheet in the inside.

  As a result, the air bag 30A is configured to have a substantially “8” cross-sectional shape, and in a folded state (that is, a non-inflated state), the air bag 30A has a generally rectangular band shape in plan view as a whole. It is formed in the shape of.

  By being configured as described above, the air bag 30A has an outer peripheral side wall portion 30a that is positioned radially outward in the mounted state and an inner peripheral side wall portion 30b that is positioned radially inward in the mounted state. And an intermediate wall portion 30c located between the outer peripheral side wall portion 30a and the inner peripheral side wall portion 30b, and both side portions located in the width direction of the air bag 30A, and the end portion in the width direction of the outer peripheral side wall portion 30a, It mainly has a flange 34 that connects the end portion in the width direction of the inner peripheral side wall portion 30b and the end portion in the width direction of the intermediate wall portion 30c. Further, the first bag body 31A is constituted by the outer peripheral side wall part 30a, the intermediate wall part 30c, and a part of the flange 34, and the second bag body 31B is formed by the inner peripheral side wall part 30b and the intermediate wall part 30c. And the remaining part of the ridge 34.

  Here, two welding line portions 35a are formed in a predetermined position of the intermediate wall portion 30c formed by overlapping a part of the resin sheet by performing a welding process along the longitudinal direction of the air bag 30A. Is formed. The welding line portion 35a is provided so as to reach the other end portion from one end portion in the longitudinal direction of the air bag 30A, and seals the expansion / contraction space 32 formed inside the air bag 30A in the width direction. And a part for maintaining the shape of the air bag 30A formed by bending and laminating one resin sheet.

  Further, a communication hole 33 is provided at a predetermined position of the intermediate wall portion 30c, and the first expansion / contraction space 32a and the second expansion / contraction space 32b described above communicate with each other through the communication hole 33. Thereby, the expansion / contraction space 32 of the air bag 30A is configured by the first expansion / contraction space 32a provided in the first bag body 31A and the second expansion / contraction space 32b provided in the second bag body 31B. become.

  The intermediate wall portion 30c also corresponds to a connecting portion that connects the flanges 34 positioned at both ends in the width direction of the air bag 30A within the air bag 30A. Therefore, the presence of the intermediate wall portion 30c as the connecting portion prevents the bag 34 from expanding toward the outer side in the width direction of the air bag 30A when the air bag 30A expands and contracts. Thus, the lateral displacement of the air bag 30A (that is, the problem that the air bag 30A is inclined due to the expansion of the bag 34 toward the outer side in the width direction of the air bag 30A) is suppressed.

  On the other hand, as shown in FIG. 5, welding line portions 35b are provided at both ends of the air bag 30A in the longitudinal direction (only one of them is shown in the figure). The welding line portion 35b is formed by superposing the outer peripheral side wall portion 30a, the inner peripheral side wall portion 30b, the intermediate wall portion 30c, and the flange 34 constituting the air bag 30A and performing a welding process in a line shape along the end portions thereof. It is formed. The welding line portion 35b extends along the width direction of the air bag 30A and is a part for sealing the expansion / contraction space 32 formed inside the air bag 30A in the longitudinal direction.

  As shown in FIGS. 2 to 5, a sheet-like adhesion prevention member 38 is disposed inside the first bag body 31 </ b> A (that is, the first expansion / contraction space 32 a). The adhesion prevention member 38 has a size that covers almost the entire surface of the outer peripheral side wall 30a of the air bag 30A when the air bag 30A is folded (that is, in a non-inflated state). For example, it is attached with a double-sided tape 39.

  In the adhesion preventing member 38, the first expansion / contraction space 32a defined by the non-textured surface of the resin sheet is in close contact with each other (that is, the surface of the outer peripheral side wall 30a and the surface of the intermediate wall 30c). It is a member for preventing this, and is preferably constituted by a cloth such as a woven fabric or a non-woven fabric. Here, as the material of the cloth, nylon, polyester, or the like is particularly suitable. As described above, by arranging the adhesion preventing member 38 inside the first bag body 31 </ b> A having the inner surface formed of a non-textured surface, the cuff 20 can be stored in a high temperature environment or stored for a long period of time. Thus, the non-textured surfaces are prevented from being in close contact with each other.

  As shown in FIGS. 1 and 2, a nipple 36 is provided at a predetermined position of the outer peripheral side wall 30 a of the air bag 30 </ b> A, and the nipple 36 is an opening provided in the outer cover member 21 a of the exterior cover 21. It is pulled out through. The nipple 36 is a part for connecting the air tube 60 and the expansion / contraction space 32 of the air bag 30A. Thereby, the expansion / contraction space 32 of the air bag 30A is connected to the pressurization pump 51 and the exhaust valve 52 (see FIG. 6), which will be described later, via the air pipe 60 described above. The exhaust valve 52 performs the pressure increase / decrease.

  In addition, as a material of the resin sheet which comprises the air bag 30A mentioned above, as long as it is rich in a stretching property and there is no air leak from the expansion / contraction space 32 formed inside after welding, it will be anything. Is available. From such a viewpoint, suitable materials for the resin sheet include ethylene-vinyl acetate copolymer (EVA), soft vinyl chloride (PVC), polyurethane (PU), polyamide (PA), and the like.

  As shown in FIG. 3, the curler 26 is accommodated in the space inside the exterior cover 21. The curler 26 is made of a flexible member configured to be elastically deformable in the radial direction by being wound in an annular shape, and has a cut extending in the axial direction at a predetermined position in the circumferential direction. Due to the cut, the curler 26 is elastically deformed so as to expand and contract in the radial direction when an external force is applied. That is, when the external force is applied, the curler 26 is deformed in the radial direction, but when the external force is no longer applied, the curler 26 is restored to the original state. Thereby, the curler 26 is addressed along the upper arm by maintaining its own annular form in the mounted state.

  This curler 26 is used to make it easier for the subject to wear the cuff 20 on the upper arm, and to urge the air bag 30A toward the upper arm when the cuff 20 is wound around the upper arm. It is. Therefore, the curler 26 is disposed at a position on the radially outer side in the mounted state of the portion where the air bag 30A is disposed, which is the space inside the exterior cover 21. As a result, the cuff 20 has a substantially annular shape even in the non-mounted state, and the belt-like air bag 30A also takes a substantially annular shape. The curler 26 is formed of a resin member such as polypropylene (PP) so as to exhibit a sufficient elastic force.

  The reinforcing sheet 24 and the noise reduction sheet 25 are both arranged in the space inside the exterior cover 21 and divide the space inside the exterior cover 21 in the thickness direction. The reinforcing sheet 24 and the noise reduction sheet 25 are both integrated with the exterior cover 21 by being joined (for example, stitching or welding) to the exterior cover 21. For fixing the reinforcing sheet 24 and the noise reduction sheet 25 to the exterior cover 21, as shown in the drawing, the periphery of the reinforcement sheet 24 and the periphery of the noise reduction sheet 25 are the periphery of the outer cover member 21 a of the exterior cover 21 and the inner cover member. By being interposed between the peripheral edge of 21b, the outer cover member 21a and the inner cover member 21b are joined at the same time when they are joined.

  The reinforcing sheet 24 is a member for preventing the inner cover member 21b from being deteriorated when the curler 26 is in direct contact with the inner cover member 21b, and is located radially inward of the curler 26 in the mounted state. . Further, the noise reduction sheet 25 is a member for preventing noise generated by the direct contact between the curler 26 and the outer cover member 21a from propagating to the air bag 30A. Located outside. That is, the curler 26 is arranged in a space radially outside the reinforcing sheet 24 and inside the noise reducing sheet 25 in the mounted state. The air bag 30 </ b> A is disposed in a space radially outside the inner cover member 21 b and inside the reinforcing sheet 24 in the mounted state.

  FIG. 6 is a diagram illustrating a functional block configuration of the sphygmomanometer according to the present embodiment. Next, with reference to this FIG. 6, the structure of the functional block of the blood pressure monitor in this Embodiment is demonstrated.

  As shown in FIG. 6, the main body 10 includes a control unit 40, a memory unit 41, a power supply unit 44, a pressure pump 51, an exhaust valve 52, a pressure, in addition to the display unit 42 and the operation unit 43 described above. A sensor 53, a pressure pump drive circuit 54, an exhaust valve drive circuit 55, and an oscillation circuit 56 are included. The pressurization pump 51, the exhaust valve 52, and the pressure sensor 53 correspond to the air system component 50 provided in the sphygmomanometer 1, and in particular, the pressurization pump 51 and the exhaust valve 52 are used to increase and decrease the pressure of the air bag 30A. It corresponds to a decompression mechanism.

  The control part 40 is comprised by CPU (Central Processing Unit), for example, and is a means for controlling the whole sphygmomanometer 1. The memory unit 41 is composed of, for example, a ROM (Read-Only Memory) or a RAM (Random-Access Memory), and stores a program for causing the control unit 40 to execute a processing procedure for blood pressure measurement, This is a means for storing measurement results and the like.

  The display unit 42 is configured by, for example, an LCD (Liquid Crystal Display), and is a means for displaying measurement results and the like. The operation unit 43 is means for receiving an operation by a user or the like and inputting an external command to the control unit 40 or the power supply unit 44. The power supply unit 44 is means for supplying power to the control unit 40.

  The control unit 40 inputs control signals for driving the pressurization pump 51 and the exhaust valve 52 to the pressurization pump drive circuit 54 and the exhaust valve drive circuit 55, respectively, and the blood pressure value as a measurement result is stored in the memory unit 41 or Or input to the display unit 42. The control unit 40 includes a blood pressure information acquisition unit (not shown) that acquires the blood pressure value of the subject based on the pressure value detected by the pressure sensor 53, and the blood pressure value acquired by the blood pressure information acquisition unit. Is input to the memory unit 41 and the display unit 42 described above as measurement results.

  The sphygmomanometer 1 may further include an output unit that outputs a blood pressure value as a measurement result to an external device (for example, a PC (Personal Computer) or a printer). As the output unit, for example, a serial communication line or a writing device for various recording media can be used.

  The pressurization pump drive circuit 54 controls the operation of the pressurization pump 51 based on the control signal input from the control unit 40. The exhaust valve drive circuit 55 controls the opening / closing operation of the exhaust valve 52 based on the control signal input from the control unit 40. The pressurizing pump 51 is for pressurizing the internal pressure (hereinafter also referred to as “cuff pressure”) of the air bag 30A by supplying air to the expansion / contraction space 32 of the air bag 30A. It is controlled by a pressure pump drive circuit 54. The exhaust valve 52 is for maintaining the internal pressure of the air bag 30A, or opening the expansion / contraction space 32 of the air bag 30A to reduce the cuff pressure. Controlled by circuit 55.

  The pressure sensor 53 is a capacitance type sensor, and its capacitance changes according to the internal pressure of the air bag 30A. The oscillation circuit 56 generates a signal having an oscillation frequency corresponding to the capacitance of the pressure sensor 53 and inputs the generated signal to the control unit 40.

  FIG. 7 is a diagram showing a flow of measurement operation of the sphygmomanometer in the present embodiment. Next, with reference to FIG. 7, the flow of the measurement operation of the sphygmomanometer in the present embodiment will be described. The program according to the flowchart shown in FIG. 7 is stored in advance in the memory unit 41 described above, and the process is executed when the control unit 40 reads the program from the memory unit 41 and executes it. .

  When measuring the blood pressure value, the cuff 20 is wound around the upper arm of the subject in advance. In this state, when the operation unit 43 provided in the main body 10 is operated and the power supply of the sphygmomanometer 1 is turned on, power is supplied from the power supply unit 44 to the control unit 40 and the control unit 40 is driven. . As shown in FIG. 6, the controller 40 first initializes the sphygmomanometer 1 after the drive (step S101).

  Next, the control unit 40 waits for a measurement start instruction. When the operation unit 43 is operated and a measurement start instruction is input, the control unit 40 closes the exhaust valve 52 and starts to drive the pressurization pump 51. The cuff pressure of the bag 30A is gradually increased (step S102).

  In the process of pressurizing the air bag 30A, the control unit 40 calculates the maximum blood pressure and the minimum blood pressure by a known procedure (step S103). Specifically, the control unit 40 acquires the cuff pressure from the oscillation frequency obtained from the oscillation circuit 56 in the process of increasing the cuff pressure of the air bladder 30A, and extracts pulse wave information superimposed on the acquired cuff pressure. Then, the control unit 40 calculates the blood pressure value based on the extracted pulse wave information.

  When the blood pressure value is calculated in step S103, the control unit 40 completely exhausts the air in the air bag 30A by stopping driving the pressurizing pump 51 and opening the exhaust valve 52 (step S104). The blood pressure value as the measurement result is displayed on the display unit 42, and the blood pressure value is stored in the memory unit 41 (step S105).

  Thereafter, the control unit 40 waits for a power-off command and ends the operation. The measurement method described above is based on a so-called pressurization measurement method that detects a pulse wave when the air bag 30A is pressurized. However, a so-called decompression measurement method that detects a pulse wave when the air bag 30A is depressurized. Of course, it is also possible to adopt.

  In the sphygmomanometer cuff 20 and the sphygmomanometer 1 including the sphygmomanometer according to the present embodiment described above, as described above, the first bag body 31A defined by the non-textured surface of the resin sheet is used. Since the adhesion preventing member 38 is disposed in the 1 expansion / contraction space 32a, the non-textured surfaces may come into close contact with each other even when the cuff 20 is stored in a high temperature environment or when stored for a long period of time. Will be prevented. In addition, the second expansion / contraction space 32b of the second bag 31B defined by the textured surface of the resin sheet does not adhere to each other due to minute irregularities formed on the inner surface.

  For this reason, both the first bag body 31A and the second bag body 31B are sufficiently inflated at the time of measurement, causing the inflation of the air bag 30A as a whole, and the measurement accuracy of the blood pressure value is impaired. There is no. Therefore, by adopting the above configuration, even when an air bag is configured as a laminated bag body by bending and laminating a single resin sheet, a cuff for a sphygmomanometer and a sphygmomanometer including the cuff are not reduced in measurement accuracy. It can be.

  Here, as for the arrangement position of the double-sided tape 39 for attaching the adhesion preventing member 38 to the outer peripheral side wall part 30a, which area of the outer peripheral side wall part 30a is arranged to cover the adhesion preventing member 38, or the adhesion preventing member It is determined appropriately in consideration of whether or not 38 has air permeability.

  For example, referring to FIG. 2, when the adhesion preventing member 38 is pasted so as to cover almost the entire outer peripheral side wall portion 30 a of the portion where the nipple 36 is provided as in the present embodiment, the adhesion preventing member 38. Is not air permeable, it is necessary to prevent the space between the outer peripheral side wall portion 30a and the adhesion preventing member 38 from being surrounded by the double-sided tape 39. For example, as shown in FIG. Only the vicinity of both end portions in the longitudinal direction may be bonded with the double-sided tape 39.

  In addition, referring to FIG. 2, the adhesion preventing member 38 is attached so as to cover almost the entire outer peripheral side wall portion 30a of the portion where the nipple 36 is provided as in the present embodiment. Even if the material does not have air permeability, an opening is locally provided in a portion facing the nipple 36 of the adhesion preventing member 38, or the adhesion preventing member 38 is divided into a plurality of sheet-like members. In any case, the arrangement position of the double-sided tape 39 is not limited at all.

  In addition, referring to FIG. 2, the adhesion preventing member 38 is attached so as to cover almost the entire outer peripheral side wall portion 30a of the portion where the nipple 36 is provided as in the present embodiment. In the case of having air permeability, the arrangement position of the double-sided tape 39 is not limited at all, and the double-sided tape 39 may be arranged at the position shown in the drawing, or in close contact with the outer peripheral side wall 30a. It is good also as arrange | positioning so that the space between the prevention members 38 may be enclosed by the double-sided tape 39. FIG.

  As described above, when the close contact prevention member 38 is provided in the first expansion / contraction space 32a as in the present embodiment, the overall expansion of the air bag 30A is not hindered by the provision of the close contact prevention member 38. It is necessary to consider.

  FIG. 8 is a cross-sectional view of a sphygmomanometer cuff according to a modification based on the above-described embodiment. Next, a sphygmomanometer cuff according to a modification based on the present embodiment will be described with reference to FIG.

  As shown in FIG. 8, the air bag 30 </ b> B provided in the sphygmomanometer cuff 20 according to the present modification is different from the above-described embodiment in the attachment position of the adhesion preventing member 38. . That is, in the sphygmomanometer cuff 20 according to this modification, the adhesion preventing member 38 is disposed inside the first bag body 31A of the air bag 30B (that is, the first inflating / deflating space 32a), It is affixed on the wall part 30c with a double-sided tape, for example.

  Even in such a configuration, since the adhesion preventing member 38 is disposed inside the first bag body 31 </ b> A whose inner surface is a non-textured surface, the non-textured surfaces may be in close contact with each other. Thus, the same effect as described in the present embodiment can be obtained. Even in such a configuration, as in the case of the present embodiment described above, the adhesion preventing member 38 is provided so that the expansion of the air bag 30B as a whole is not hindered by providing the adhesion preventing member 38. It is necessary to appropriately determine the position where the adhesive is attached, the position where the double-sided tape for adhering the adhesion prevention member 38 is disposed, and the like.

(Embodiment 2)
9 is a cross-sectional view of a cuff for a blood pressure monitor according to Embodiment 2 of the present invention, and FIG. 10 is an enlarged partial cross-sectional view of the air bag shown in FIG. With reference to these FIG. 9 and FIG. 10, the structure of the sphygmomanometer cuff in the present embodiment will be described.

  As shown in FIG. 9 and FIG. 10, in the sphygmomanometer cuff 20 according to the present embodiment, compared to the above-described first embodiment of the present invention, the air mainly accommodated in the exterior cover 21. The direction of the bag 30C is different. That is, in the sphygmomanometer cuff 20 according to the present embodiment, the first bag body 31A whose inner surface is a non-textured surface is disposed radially inward in the mounted state, and the inner surface is a second textured surface. The direction of the air bag 30C is set so that the bag body 31B is disposed radially outside in the mounted state.

  When configured in this way, the first bag body 31A is configured by the inner peripheral side wall portion 30b, the intermediate wall portion 30c, and a part of the flange 34, and the second bag body 31B is configured by the outer peripheral side wall portion. The part 30a, the intermediate wall part 30c, and the remaining part of the flange 34 are formed.

  Even in the sphygmomanometer cuff 20 according to the present embodiment, the sheet-like adhesion preventing member 38 is disposed inside the first bag body 31A (that is, the first expansion / contraction space 32a). The adhesion preventing member 38 has a size that covers almost the entire inner peripheral side wall 30b of the air bag 30C in a state where the air bag 30C is folded (that is, in a non-inflated state). It is affixed to 30b with a double-sided tape 39, for example.

  Even in such a configuration, since the adhesion preventing member 38 is disposed inside the first bag body 31 </ b> A whose inner surface is a non-textured surface, the non-textured surfaces may be in close contact with each other. Thus, the same effect as described in the first embodiment of the present invention can be obtained. In this case, since the expansion of the air bag 30C as a whole is not hindered by the adhesion preventing member 38, the attachment position of the adhesion preventing member 38 or the adhesion preventing member 38 is bonded. There is no particular need to consider the position of the double-sided tape.

  FIG. 11 is a cross-sectional view of a sphygmomanometer cuff according to a modification based on the above-described embodiment. Next, a sphygmomanometer cuff according to a modification based on the present embodiment will be described with reference to FIG.

  As shown in FIG. 11, the air bag 30 </ b> D included in the sphygmomanometer cuff 20 according to this modification is different in the attachment position of the adhesion preventing member 38 as compared to the above-described embodiment. . That is, in the sphygmomanometer cuff 20 according to the present modification, the adhesion preventing member 38 is disposed inside the first bag body 31A of the air bag 30D (that is, the first inflated / deflated space 32a), It is affixed on the wall part 30c with a double-sided tape, for example.

  Even in such a configuration, since the adhesion preventing member 38 is disposed inside the first bag body 31 </ b> A whose inner surface is a non-textured surface, the non-textured surfaces may be in close contact with each other. Thus, the same effect as described in the present embodiment can be obtained. However, in such a configuration, the attachment position of the adhesion preventing member 38 or the adhesion preventing member 38 is bonded so that the expansion of the air bag 30D as a whole is not hindered by providing the adhesion preventing member 38. Therefore, it is necessary to appropriately determine the arrangement position of the double-sided tape for the purpose.

  In Embodiments 1 and 2 of the present invention described above and modifications thereof, a sphygmomanometer cuff in which a curler as a curved elastic plate is included in an exterior cover, and a sphygmomanometer provided with the same are illustrated. Although the description has been given, the curler is not necessarily an essential configuration, and the present invention can naturally be applied to a cuff for a blood pressure monitor that does not include the curler and a blood pressure monitor including the same.

  Further, in the first and second embodiments of the present invention described above and the modifications thereof, the case where the adhesion preventing member is attached to the non-textured surface of the resin sheet by the double-sided tape is described as an example. However, the adhesion prevention member may be fixed to the non-textured surface of the resin sheet by other fixing methods, and when the sheet-like adhesion prevention member is not bent or misaligned, it is fixed to the resin sheet. You may not do it.

  Further, in the first and second embodiments of the present invention described above and modifications thereof, the present invention is applied to the upper arm sphygmomanometer in which the upper arm is adopted as the measurement site and the sphygmomanometer cuff provided in the upper arm sphygmomanometer. The present invention has been described by way of example, but the present invention can naturally be applied to a wrist sphygmomanometer, a foot sphygmomanometer, and a cuff for a sphygmomanometer included therein.

  Furthermore, in the first and second embodiments of the present invention described above and the modifications thereof, the present invention is applied to a sphygmomanometer capable of measuring the maximum blood pressure and the minimum blood pressure, and a sphygmomanometer cuff provided therein. However, blood pressure that can measure blood pressure information other than the maximum blood pressure and the minimum blood pressure (for example, average blood pressure value, pulse wave, pulse, AI (Augmentation Index) value, etc.) can be measured. Naturally, it is possible to apply the present invention to the information measuring device and the cuff for the blood pressure information measuring device provided therein.

  Thus, the above-described embodiments and their modifications disclosed herein are illustrative in all respects and are not restrictive. The technical scope of the present invention is defined by the claims for utility model registration, and includes all modifications within the meaning and scope equivalent to the description of the claims for utility model registration.

  DESCRIPTION OF SYMBOLS 1 sphygmomanometer, 10 main body, 11 casing, 20 sphygmomanometer cuff, 21 exterior cover, 21a outer cover member, 21b inner cover member, 21c bias tape, 22a, 22b surface fastener, 24 reinforcing sheet, 25 noise reduction sheet, 26 Carla, 30A-30D air bag, 30a outer peripheral side wall, 30b inner peripheral side wall, 30c intermediate wall, 31 expansion / contraction space, 31A first bag, 31B second bag, 32 expansion / contraction space, 32a first expansion Compaction space, 32b Second expansion / contraction space, 33 Communication hole, 34mm, 35a, 35b Welding line part, 36 Nipple, 38 Adhesion prevention member, 39 Double-sided tape, 40 Control part, 41 Memory part, 42 Display part, 43 Operation Part, 44 power supply part, 50 air system component, 51 pressure pump, 52 exhaust valve, 53 pressure sensor, 5 Pressure pump driving circuit, 55 an exhaust valve drive circuit, 56 an oscillation circuit, 60 an air pipe.

Claims (8)

A cuff for a blood pressure information measuring device that includes a fluid bag that expands and contracts when fluid enters and exits and takes a substantially annular form in a mounted state wound around a mounted site,
The fluid bag is formed by bending and laminating a single resin sheet having a textured surface that is one textured surface and a non-textured surface that is not textured. And includes a first bag body and a second bag body stacked in the radial direction in the mounted state,
In the first bag body, the embossed surface located at a portion near one end in the width direction of the resin sheet is overlapped with the non-textured surface of the portion located substantially in the center in the width direction of the resin sheet. The resin sheet is formed in a loop shape and is formed by welding at least a part of the overlapping portion, and has a first expansion / contraction space defined by the non-textured surface therein,
The second bag body is configured such that the non-textured surface located at a portion near the other end in the width direction of the resin sheet is superimposed on the textured surface of a portion located at a substantially center in the width direction of the resin sheet. The resin sheet is formed in a loop shape and is formed by welding at least a part of the overlapping portion, and has a second expansion / contraction space defined by the textured surface therein,
A cuff for a blood pressure information measuring device, wherein a sheet-like adhesion preventing member for preventing the non-textured surfaces defining the first expansion / contraction space from adhering to each other is accommodated in the first bag body.   The blood pressure information measuring device cuff according to claim 1, wherein the adhesion preventing member is made of cloth.   The blood pressure information measuring device cuff according to claim 1, wherein the adhesion preventing member has air permeability.   The cuff for a blood pressure information measurement device according to any one of claims 1 to 3, wherein the adhesion preventing member is attached to a predetermined region of the non-textured surface that defines the first expansion / contraction space.   The cuff for a blood pressure information measurement device according to any one of claims 1 to 4, wherein the first bag body is configured to be positioned radially outside the second bag body in the mounted state.   The cuff for a blood pressure information measuring device according to claim 5, wherein the adhesion preventing member is disposed so as to cover substantially the entire inner surface of the outer peripheral side wall portion positioned on the outermost radial direction of the fluid bag in the mounted state. .   The said 1st expansion / contraction space and the said 2nd expansion / contraction space are connecting in any one of the through-hole provided in the approximate center of the width direction of the said resin sheet. Cuff for blood pressure information measuring device. A cuff for a blood pressure information measuring device according to any one of claims 1 to 7,
A pressurizing / depressurizing mechanism for pressurizing and depressurizing the fluid bag;
A blood pressure information measurement device comprising: a blood pressure information acquisition unit that acquires blood pressure information by using the fluid bag.

Images