JP5217746B2 - Blood pressure measurement device - Google Patents

Description

  The present invention relates to a blood pressure measurement device (hereinafter also simply referred to as a sphygmomanometer), and more particularly to an upper arm blood pressure measurement device provided with a cuff winding mechanism for mechanically winding a cuff around an upper arm.

  Usually, blood pressure is measured by wrapping a cuff with a body compression fluid bag for compressing an artery located inside the living body around the body surface, and then expanding and contracting the body pressure fluid bag. An arterial pressure pulse wave generated in the artery is detected, thereby measuring a blood pressure value.

  In conventional upper arm type sphygmomanometers, the cuff winding work around the upper arm was entrusted to the subject's hand, resulting in variations in the cuff wrapping strength at each measurement, resulting in variations in the measured blood pressure value. Has occurred.

  For this reason, in recent years, a sphygmomanometer equipped with a cuff winding mechanism capable of mechanically winding a cuff around an upper arm is becoming widespread. In the sphygmomanometer equipped with this cuff winding mechanism, an upper arm insertion part capable of inserting the upper arm from the axial direction is provided at a predetermined position of the sphygmomanometer, and the subject pivots the upper arm in the hollow part formed in the upper arm insertion part. By simply inserting from the direction, the cuff is wound around the upper arm, and the blood pressure value is automatically measured. The sphygmomanometer is expected to obtain a merit that not only a stable measurement accuracy is realized but also a complicated winding operation is not required because a certain winding strength is reproduced for each measurement. it can.

  For example, Japanese Patent Application Laid-Open No. 2005-2005 assumes that a cuff that includes a fluid bag for compressing an upper arm and that has one end of a cuff formed in a substantially cylindrical shape is pulled by a rotating drum to reduce the inner diameter of the cuff and wind around the upper arm. No. 237432 (Patent Document 1), Japanese Patent Application Laid-Open No. 2004-215847 (Patent Document 2), Japanese Patent Application Laid-Open No. 2000-217794 (Patent Document 3), Japanese Patent Application Laid-Open No. 2000-60808 (Patent Document 4), etc. Is mentioned.

  As another mechanism, a curved elastic plate configured to be elastically deformable in the radial direction is disposed outside the upper arm compression fluid bag, and a belt-like member is wound around the outer periphery of the curved elastic plate. For example, Japanese Patent Laid-Open No. 10-314123 (Patent Document 5) and the like employ a mechanism in which the inner diameter of the curved elastic plate is reduced by pulling in the tangential direction and the upper arm compression fluid bag is pressed against the upper arm and wound. It is done.

In any of the cuff winding mechanisms disclosed in Patent Documents 1 to 5, the upper arm is inserted in a state before the cuff is wound around the upper arm (that is, the cuff is not wound by the cuff winding mechanism). The shape of the hollow part provided in the part is a columnar shape, and the cuff winding mechanism is operated to deform the cuff in accordance with the shape of the upper arm to fit the upper arm without a gap.
JP 2005-237432 A JP 2004-215847 A JP 2000-217794 A JP 2000-060808 A Japanese Patent Laid-Open No. 10-314123

  However, in many cases, the shape of the upper arm is a shape that gradually decreases from the central side toward the peripheral side, and when using a sphygmomanometer in which the hollow portion is configured in a columnar shape as described above, It is necessary to change the hollow portion from a cylindrical shape to a truncated cone shape by deforming the cuff until the cuff is wound around the upper arm by the cuff winding mechanism. Each of the winding mechanisms is complicated.

  Furthermore, in the cuff winding mechanism disclosed in Patent Document 1, since the cuff winding state is fixed before pressurization, the upper arm may not be uniformly compressed during actual pressurization. Concerned. Moreover, in the cuff winding mechanism disclosed in Patent Document 5, the cuff is changed from a columnar shape to a truncated cone shape using a strip-shaped tape that is thinner than the width of the cuff. There is concern that the cuff may be twisted and cannot be uniformly compressed.

  Therefore, the present invention has been made to solve the above-described problem, and the structure of the cuff winding mechanism is simplified, and the uniform winding pressure is obtained according to the shape of the upper arm of the subject. An object of the present invention is to provide a blood pressure measuring device having a cuff winding mechanism that enables a cuff to be wound around an upper arm.

  In the blood pressure measurement device according to the present invention, the blood pressure measurement device includes an upper arm insertion portion that accommodates a band-shaped cuff that is wound around the upper arm of the subject, and the cuff is wound around the inserted upper arm of the subject. The cuff body is arranged in a cylindrical shape, one end of which is fixed so that it cannot move, and the other end is slidably provided so that the cylindrical inner diameter of the cuff body can be reduced or expanded. A slide movement mechanism for engaging the other end side of the cuff and sliding the other end side is provided on the other end side of the cuff, and the slide movement mechanism and the cuff In the engagement with the other end side, the other end side of the cuff is connected to the cuff main body portion so as to be rotatable.

  According to the sphygmomanometer cuff based on the present invention, when the other end side of the cuff is slid in the direction of reducing the cylindrical inner diameter of the cuff body by the slide moving mechanism, the cuff is placed on the upper arm of the subject. The main body is wrapped around. At this time, due to the difference in thickness between the central side and the distal side of the upper arm, the central side of the upper arm is wound first, and a gap is generated between the distal side and the cuff body.

  If the other end side of the cuff is further slid from this state, the tensile force from the slide moving mechanism becomes larger on the distal side, which is looser than the central side, and the balance of the tensile force is the same as that on the central side. It will collapse between the peripheral side. At this time, in the configuration of the present invention, the slide movement mechanism and the other end side of the cuff are connected to the cuff main body so that the other end side of the cuff can rotate, so the central side and the distal side The other end side of the cuff rotates to the central side in order to keep the balance of the tensile force balance between the two.

  As a result, the gap between the central side of the upper arm and the cuff main body and the gap between the distal side of the upper arm and the cuff main body are equal. In the subsequent wrapping operation, the cuff forms a conical shape while the other end of the cuff is appropriately rotated with respect to the cuff body so as to maintain a balanced state of the tensile force balance between the central side and the distal side. As described above, the cuff is wound around the upper arm so as to obtain a uniform winding pressure according to the shape of the upper arm. As a result, the upper arm can be uniformly compressed during blood pressure measurement, and blood pressure measurement accuracy in the blood pressure measurement device can be improved.

  In addition, when the other end of the cuff is slid in the direction of enlarging the cylindrical inner diameter of the cuff main body, the cuff main body around the upper arm of the subject will be loosened. However, when the blood pressure is measured again, a conical shape is left. However, in the present invention, since the other end side of the cuff is connected to the cuff main body portion so as to be rotatable, the other end side of the cuff is rotated to the distal side so that the cuff main body is rotated. It is possible to return the part to the initial cylindrical shape.

  In the blood pressure measurement device, the other end of the cuff is provided with a contact surface that is convex toward the moving direction of the other end in the direction in which the cylindrical inner diameter of the cuff main body portion decreases. The slide movement mechanism is provided with a contact member that contacts the contact surface. Further, the other end of the cuff is provided with an arcuate engagement hole that is convex toward the moving direction of the other end in a direction in which the cylindrical inner diameter of the cuff main body portion decreases. The contact surface is defined by the opening end surface on the convex side of the engagement hole, and the contact member is inserted through the engagement hole.

  With this configuration, the other end side of the cuff can be rotated with respect to the cuff body by moving the contact member along the contact surface. As a result, when the cuff is wrapped around the upper arm, the other end of the cuff rotates with respect to the cuff body to maintain the balance of the tensile force balance between the central side and the distal side, and the cuff has a conical shape. Thus, the cuff can be wound around the upper arm so as to obtain a uniform winding pressure according to the shape of the upper arm.

  Further, in the blood pressure measurement device, the slide moving mechanism has an arcuate contact surface that is convex toward the moving direction of the other end in a direction in which the cylindrical inner diameter of the cuff main body portion decreases. An abutting member that abuts against the abutting surface is provided at the other end of the cuff. Further, the slide movement mechanism is provided with an arcuate engagement hole that is convex toward the movement direction of the other end in the direction in which the cylindrical inner diameter of the cuff main body portion is reduced. The contact surface is defined by the opening end surface on the convex shape side of the hole, and the contact member is inserted through the engagement hole.

  With this configuration, when the cuff is wound around the upper arm, the other end side of the cuff can be rotated with respect to the cuff body by moving the contact member along the contact surface. As a result, when the cuff is wrapped around the upper arm, the other end of the cuff is rotated so that the other end of the cuff is balanced with respect to the cuff body in order to maintain a balance in tension balance between the central side and the distal side. By making the cuff form a conical shape, it is possible to wind the cuff around the upper arm so as to obtain a uniform winding pressure according to the shape of the upper arm.

  Further, in the blood pressure measurement device, the other end of the cuff is provided with a contact surface that is convex toward the moving direction of the other end in the direction in which the cylindrical inner diameter of the cuff main body expands. The slide movement mechanism is provided with a contact member that contacts the contact surface. The other end of the cuff is provided with a hole having a convex shape toward the moving direction of the other end in a direction in which the cylindrical inner diameter of the cuff main body portion decreases, and the convex side of the hole The abutment surface is defined by the opening end surface, and the abutment member is inserted through the hole.

  With this configuration, when the other end of the cuff is slid in the direction of enlarging the cylindrical inner diameter of the cuff body, and the wrapping around the cuff upper arm is released, Since the end side is connected so as to be rotatable, the contact member is moved along the contact surface, and the other end side of the cuff is rotated to the distal side, so that the cuff main body portion is initialized. It becomes possible to return to the cylindrical shape of the state.

  Further, in the blood pressure measurement device, the slide movement mechanism is provided with a contact surface that is convex toward the movement direction of the other end in the direction in which the cylindrical inner diameter of the cuff body portion expands, A contact member that contacts the contact surface is provided at the other end of the cuff. Further, the slide moving mechanism is provided with a hole having a convex shape toward the moving direction of the other end in a direction in which the cylindrical inner diameter of the cuff main body portion is reduced, and an opening on the convex side of the hole. The contact surface is defined by the end surface, and the contact member is inserted into the hole.

  With this configuration, when the other end of the cuff is slid in the direction of enlarging the cylindrical inner diameter of the cuff body, and the wrapping around the cuff upper arm is released, Since the end side is connected so as to be rotatable, the contact member moves along the contact surface, and the other end side of the cuff is rotated to the distal side, so that the cuff main body portion is initialized. It becomes possible to return to the cylindrical shape of the state.

  According to the blood pressure measurement device based on the present invention, in the engagement between the slide movement mechanism and the other end side of the cuff, a simple cuff in which the other end side of the cuff is rotatably connected to the cuff body portion. By employing the winding mechanism, when the cuff is wound around the upper arm, the cuff can be wound around the upper arm so as to obtain a uniform winding pressure according to the shape of the upper arm.

  As a result, a constant winding strength is reproduced for each measurement, so that not only stable measurement accuracy is realized, but also a merit that a complicated winding operation is not required can be obtained.

  Hereinafter, a blood pressure measuring device based on each embodiment of the present invention will be described. In the following description, the same or corresponding parts are denoted by the same reference numerals, and the description thereof may not be repeated. Moreover, typical examples of the blood pressure measurement method of the blood pressure measurement device for measuring blood pressure in a living body include an oscillometric method and a Korotkoff method. The feature of the present invention is a cuff winding mechanism of a cuff for a blood pressure monitor. Therefore, the present invention is not limited to the blood pressure measurement method.

(Embodiment 1)
Hereinafter, a blood pressure measurement apparatus according to Embodiment 1 based on the present invention will be described with reference to FIGS. FIG. 1 is a perspective view showing the overall configuration of the blood pressure measurement device according to the present embodiment, and FIG. 2 is a side view showing the usage state of the blood pressure measurement device according to the present embodiment. 3 and 4 are first and second cross-sectional views showing the configuration of the cuff and the cuff winding mechanism employed in the blood pressure measurement device according to the present embodiment, and FIG. It is a top view which shows the structure of the cuff and cuff winding mechanism employ | adopted as the blood-pressure measurement apparatus in a form. 6 to 13 are a plan view and a conceptual perspective view for explaining the cuff and the winding operation of the cuff winding mechanism employed in the blood pressure measurement device according to the present embodiment.

(Overall configuration of blood pressure measuring device 1)
Referring to FIGS. 1 and 2, the blood pressure measurement device according to the present embodiment accommodates display unit 2 that displays blood pressure measurement values and the like and a band-shaped cuff that is wound around the upper arm of the subject on the upper surface side of main body 1. And a printer unit 4 that prints and outputs blood pressure measurement values and the like. The display unit 2 is disposed on the left rear side of the main body 1.

  The upper arm insertion portion 3 is provided with a cylindrical opening 30 for inserting the upper arm, and the arm of the subject M (in this embodiment, the right arm of the subject M) is inserted through the opening 30; The upper arm is pressed by the cuff 100 disposed inside.

(Cuff and slide movement mechanism)
Next, the cuff 100 and the slide moving mechanism 200 in the present embodiment will be described with reference to FIGS. 3 to 5. The cuff 100 has a cylindrical cuff main body 101 so as to be wound around the upper arm of the subject M inserted from the upper arm insertion portion 3, and the fixed region SI on the main body side so that one end 100A side of the cuff 100 cannot move. It is fixed to. The cuff 100 is provided with a biological compression fluid bag therein, but illustration thereof is omitted here.

  The other end 100B side of the cuff 100 is slid in the cylindrical tangential direction (L direction in the figure) with the fixed region SI arranged on the inside so that the cylindrical inner diameter of the cuff body 101 can be reduced or enlarged. It is provided to be movable. Further, on the other end 100B side of the cuff 100, a slide moving mechanism 200 is provided for engaging with the other end 100B side of the cuff 100 and sliding the other end 100B side (L direction in the figure).

  In the central region of the other end 100B of the cuff 100, an arcuate engagement that is convex toward the moving direction of the other end 100B in the direction in which the cylindrical inner diameter of the cuff main body 101 decreases (L1 direction in the figure). A joint hole 110 is provided, and the contact surface 110 a is defined by the opening end surface of the engagement hole 110 on the convex shape side.

  The slide moving mechanism 200 includes a pin 201 as a contact member inserted through the engagement hole 110 and a base member 202 that supports the pin 201. The pin 201 is slidably moved along the axial direction with respect to the base member 202 using a solenoid or the like. The base member 202 is supported by a slider 203 so as to be slidable along the L direction in the figure, and a driving device 204 used for moving the base member 202 is provided at an end of the slider 203. For example, a ball screw mechanism is used for the slider 203 and the base member 202.

  As shown in FIG. 3, the slide movement mechanism 200 is engaged with the other end 100 </ b> B of the cuff 100 by inserting the pin 201 into the engagement hole 110 provided in the other end 100 </ b> B of the cuff 100. . Thereby, the other end 100B side of the cuff 100 is connected to the cuff main body portion 101 so as to be rotatable (θ direction). When the other end 100B of the cuff 100 is moved in a direction (L1 direction in the figure) in which the cylindrical inner diameter of the cuff main body portion 101 is reduced, the shaft portion 201a of the pin 201 is brought into contact with the contact surface 110a of the engagement hole 110. Abut.

  As shown in FIG. 4, when the blood pressure of the subject M is measured by the blood pressure measurement device 1, it is necessary to prevent the movement of the other end 100B of the cuff 100 along the engagement hole 110. The other end 100 </ b> B of the cuff 100 can be sandwiched between the 201 b and the base member 202.

(Winding operation)
Next, the cuff winding operation until blood pressure measurement using the blood pressure measurement device according to the present embodiment will be described with reference to FIGS. 6 and 7, FIG. 8 and FIG. 9, FIG. 10 and FIG. 11, and FIG. 12 and FIG. 13 are a plan view and a conceptual perspective view showing the state of wrapping around the upper arm 10 of the cuff 100 in the same step. It is.

  6 and 7, an initial state before blood pressure measurement is shown, and a state in which the upper arm 10 is passed through a cylindrical cuff body 101 is shown. The pin 201 of the slide moving mechanism 200 is located at the center of the engagement hole 110. From this state, the pin 201 is gradually moved in the L1 direction using the slide moving mechanism 200.

  With reference to FIGS. 8 and 9, the cylindrical inner diameter of the cuff body 101 is gradually reduced by the movement of the pin 201 in the L1 direction, and winding of the cuff body 101 around the upper arm 10 of the subject M is started. The At this time, due to the difference in thickness between the central side and the distal side of the upper arm 10, the central side of the upper arm 10 is wound first, and there is no gap in the region P <b> 10 between the central side of the upper arm 10 and the cuff body 101. On the other hand, a gap remains in the region P20 between the distal side and the cuff body 101. Until this state is reached, the tensile force P is applied to the central side and the distal side of the upper arm 10 in a well-balanced manner.

  Referring to FIGS. 10 and 11, when the pin 201 is moved in the L1 direction and the other end 100B side of the cuff 100 is further slid from the above state, the tensile force from the slide moving mechanism 200 is the central side. The distal side, which is in a loosely wound state, becomes larger than that, and the balance of the tensile force is broken between the central side and the peripheral side.

  At this time, in the configuration of the present embodiment, the slide movement mechanism 200 and the other end 100B side of the cuff 100 are connected to the cuff body 101 so that the other end 100B side of the cuff 100 can rotate. Therefore, in order to maintain the balance of the tensile force balance between the central side and the distal side, the contact surface 110a of the engagement hole 110 is in the shape of an arch of the contact surface 110a in a state of contacting the pin 201. The other end side 100B of the cuff 100 rotates along the central side (θ1). As a result, the gap in the region P10 between the central side of the upper arm 10 and the cuff main body and the gap in the region P20 between the distal side of the upper arm and the cuff main body become equal.

  Referring to FIGS. 12 and 13, the cuff 100 with respect to the cuff body 101 is maintained so that the balance of the tensile force between the central side and the distal side is maintained by the movement of the pin 201 in the L1 direction. The cuff 100 is wound around the upper arm 10 so that the cuff body 101 forms a conical shape while the other end 100 </ b> B side is appropriately rotated, and a uniform winding pressure is obtained according to the shape of the upper arm 10.

(Action / Effect)
As described above, according to the blood pressure measurement device 1 in the present embodiment, the engagement of the slide movement mechanism 200 and the other end 100B side of the cuff 100 allows the other end 100B side of the cuff 100 to rotate with respect to the cuff body 101. When the cuff 100 is wound around the upper arm, the cuff 100 is attached to the upper arm 10 so as to have a uniform winding pressure according to the shape of the upper arm 10. Can be wound.

  As a result, a constant winding strength is reproduced for each measurement, so that not only stable measurement accuracy is realized, but also a merit that a complicated winding operation is not required can be obtained.

(Embodiment 2)
Next, a blood pressure measurement device according to Embodiment 2 based on the present invention will be described with reference to FIGS. 14 and 15. FIG. 14 is a partially enlarged plan view showing a connecting portion between the other end of the cuff and the slide moving mechanism of the blood pressure measurement device according to the present embodiment, and FIG. 15 is a sectional view thereof.

  In the first embodiment, the case where the engagement hole 110 is provided on the other end 100B side of the cuff 100 and the pin 201 is provided on the slide movement mechanism 200 side has been described. However, in the present embodiment, the slide movement mechanism side is provided. An engagement hole that constitutes a contact surface is provided on the cuff, and a pin is provided on the other end side of the cuff.

(Structure of connecting part)
Referring to FIGS. 14 and 15, the cuff 300 in the present embodiment also has a cylindrical cuff main body 301 so as to be wound around the upper arm of the subject M, and one end side of the cuff 300 cannot be moved. It is fixed to the fixed area on the side. In the central region on the other end 300B side of the cuff 300, a pin 302 similar to that in the first embodiment is provided. The pin 302 can also have a mechanism for lowering the pin 302 in order to prevent movement of the other end 300B of the cuff 300 with respect to the plate 405 described later when the blood pressure measurement device 1 measures the blood pressure of the subject M. It is.

  The slide moving mechanism 400 is provided with an arcuate engagement hole 410 that is convex toward the moving direction of the other end 300B in the direction in which the inner diameter of the cylindrical shape of the cuff body 301 is reduced in order to allow the pin 302 to be inserted. Plate 405. The contact surface 410a is defined by the opening end surface of the engagement hole 410 on the convex shape side.

  The plate 405 has a base member 402 that supports the plate 405. The base member 402 is supported by a slider 403 so as to be slidable along the L direction in the figure, and a driving device 404 used to move the base member 402 is provided at an end of the slider 403.

(Action / Effect)
Even when the cuff 300 and the slide moving mechanism 400 having the above-described configuration are used, the cuff is engaged in the engagement between the slide moving mechanism 400 and the other end 300B of the cuff 300, as in the case of the first embodiment. The other end 300 </ b> B side of the cuff 300 can be pivotally connected to the main body 301, and when the cuff 300 is wound around the upper arm, a uniform winding pressure is obtained according to the shape of the upper arm 10. The cuff 300 can be wound around the upper arm 10.

  As a result, a constant winding strength is reproduced for each measurement, so that not only stable measurement accuracy is realized, but also a merit that a complicated winding operation is not required can be obtained.

(Embodiment 3)
A blood pressure measurement apparatus according to Embodiment 3 based on the present invention will be described below with reference to FIGS. FIG. 16 is a plan view showing the shape of an engagement hole provided on the other end side of the cuff of the blood pressure measurement device according to the present embodiment, and FIG. FIG. 5 is a second to fourth diagram for explaining an operation principle.

  In the first and second embodiments, the operating principle at the time of winding the cuff is described. In the present embodiment, the operating principle when the cuff is loosened after the blood pressure measurement is finished is shown.

(Linked structure)
As shown in FIG. 16, an engagement hole 510 is provided on the other end 500 </ b> B side of the cuff 500. This engagement hole 510 is provided in the central region of the other end 500B of the cuff 500, and moves toward the moving direction of the other end 500B in the direction (L1 direction in the figure) in which the cylindrical inner diameter of the cuff main body portion 501 is reduced. A convex shape as a whole toward the moving direction of the other end 500B in the direction in which the inner diameter of the cylindrical shape of the cuff body 501 and the cylindrical inner diameter of the cuff main body 501 expand (L2 direction in the figure). It is a hole shape in which a chevron-shaped contact surface 510d is defined.

  The abutting surface 510d as a whole has a shape that is convex in the L2 direction in the figure, but from both ends of the abutting surface 510a, a curved portion 510b that faces inward and a semicircular shape at the top. Arc portion 510c.

(Operating principle when cuff is wound / Operating principle when loosening cuff)
Next, with reference to FIG. 16 to FIG. 19, an operation principle when the cuff is wound and an operation principle when the cuff is loosened after the blood pressure measurement is finished will be described. First, the operation principle when the cuff is wound will be described with reference to FIGS. 16 and 17.

(Principle of operation when wrapping cuff)
The state shown in FIG. 16 is the same as the state shown in FIGS. 8 and 9, and the cylindrical inner diameter of the cuff main body 501 is gradually reduced by the movement of the pin 201 in the L1 direction. This is the initial state where the cuff body is wound.

  The state shown in FIG. 17 is the same as the state shown in FIGS. 12 and 13, and in order to keep the balance of the tensile force balance between the central side and the distal side, the contact surface 510 a of the engagement hole 510. Is in a state where the other end side 500B of the cuff 500 is rotated in the central side (θ1) direction along the bow shape of the contact surface 510a. Thereby, when the cuff is wound, the same effect as that of each of the above embodiments can be obtained.

(Operating principle when loosening the cuff)
Next, the operation principle when the cuff is loosened will be described with reference to FIGS. As shown in FIG. 18, the pin 201 is moved in the L2 direction by using a slide moving mechanism having the same mechanism as in the first embodiment. As a result, the pin 201 comes into contact with the bending portion 510b. Further, when the pin 201 is moved in the L2 direction, the bending portion 510b is pushed in the L2 direction by the pin 201, and the cylindrical inner diameter of the cuff main body portion 501 is gradually expanded, and at the same time, the other end side 500B of the cuff 500 is moved to the distal end. It rotates in the side (θ2) direction. Thereafter, the pin 201 is positioned at the arc portion 510c. As a result, the cuff body 501 of the cuff 500 is returned from the conical shape to the cylindrical shape which is the initial state.

(Action / Effect)
As described above, according to the present embodiment, when the other end 500 </ b> B side of the cuff 500 is slid in the direction in which the cylindrical inner diameter of the cuff main body 501 is enlarged, the wrapping around the upper arm 10 of the cuff 500 is released. Since the other end 500B of the cuff 500 is connected to the cuff main body 501 so as to be rotatable, the pin 201 is moved along the contact surface 510d, and the other end 500B of the cuff 500 is moved to the distal end. The cuff body 501 can be returned to the initial cylindrical shape by pivoting to the side (in the θ2 direction).

  The shape of the contact surface 510d provided in the engagement hole 510 is not limited to the shape shown in FIG. 16, but the shape of the contact surface provided in the engagement hole 510 is an arc shape 520 shown in FIG. It is also possible to adopt the triangular shape 530 shown in FIG. 6 and the triangular shape 540 in which the hypotenuse shown in FIG.

(Embodiment 4)
Next, a blood pressure measurement device according to Embodiment 4 based on the present invention will be described with reference to FIGS. FIG. 23 is a partially enlarged plan view showing a connecting portion between the other end of the cuff and the slide moving mechanism of the blood pressure measurement device according to the present embodiment, and FIG. 24 is a sectional view thereof.

  In the third embodiment, the case where the engagement hole 510 is provided on the other end 500B side of the cuff 500 and the pin 201 is provided on the slide movement mechanism 200 side has been described. However, in the present embodiment, the slide movement mechanism side is provided. An engagement hole that constitutes a contact surface is provided on the cuff, and a pin is provided on the other end side of the cuff.

(Linked structure)
Referring to FIGS. 23 and 24, cuff 600 in the present embodiment also has a cylindrical cuff body 601 so as to be wound around the upper arm of subject M, and one end side of cuff 600 is not movable. It is fixed in the fixed area on the main body side. A pin 602 similar to that of the third embodiment is provided in the central region on the other end 600B side of the cuff 600.

  The slide moving mechanism 700 has a plate 705 provided with an engagement hole 710 having the same shape as the engagement hole 510 shown in the third embodiment, in order to allow the pin 602 to pass therethrough.

  The plate 705 has a base member 702 that supports the plate 705. The base member 702 is supported by a slider 703 so as to be slidable along the L direction in the figure, and a driving device 704 used to move the base member 702 is provided at an end of the slider 703.

(Action / Effect)
Even when the cuff 600 and the slide movement mechanism 700 having the above-described configuration are used, the cuff 600 is engaged with the slide movement mechanism 700 and the other end 600B of the cuff 600 in the same manner as in the third embodiment. Since the other end 600B side of the cuff 600 is connected to the main body 601 so as to be rotatable, the pin 602 is moved along the contact surface 710d, and the other end 600B side of the cuff 600 is moved to the distal side. By turning (θ2 direction), the cuff body 601 can be returned to the initial cylindrical shape.

  In each of the above embodiments, the end face portion of the punched hole is used as the contact surface. However, the present invention is not limited to this configuration, and the side surface of the side wall provided on the plate-like member is used as the contact surface. A configuration can also be adopted. In addition, the structures described in the above embodiments can be used in appropriate combination.

  Although the embodiments of the present invention have been described above, the embodiments disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

1 is a perspective view illustrating an overall configuration of a blood pressure measurement device according to Embodiment 1. FIG. FIG. 3 is a side view showing a usage state of the blood pressure measurement device according to Embodiment 1. It is a 1st cross-sectional view which shows the structure of the cuff and the cuff winding mechanism which are employ | adopted for the blood pressure measurement apparatus in Embodiment 1. FIG. It is a 2nd cross-sectional view which shows the structure of the cuff and cuff winding mechanism which are employ | adopted for the blood-pressure measurement apparatus in Embodiment 1. FIG. 3 is a plan view showing a configuration of a cuff and a cuff winding mechanism employed in the blood pressure measurement device according to Embodiment 1. FIG. 6 is a first plan view for explaining a cuff and a winding operation of the cuff winding mechanism employed in the blood pressure measurement device according to Embodiment 1. FIG. 6 is a first perspective view for explaining a cuff and a winding operation of a cuff winding mechanism employed in the blood pressure measurement device according to Embodiment 1. FIG. FIG. 8 is a second plan view for explaining the cuff and the winding operation of the cuff winding mechanism employed in the blood pressure measurement device according to the first embodiment. 6 is a second perspective view for explaining the cuff and the winding operation of the cuff winding mechanism employed in the blood pressure measurement device according to Embodiment 1. FIG. FIG. 10 is a third plan view for explaining the cuff and the winding operation of the cuff winding mechanism employed in the blood pressure measurement device according to the first embodiment. FIG. 9 is a third perspective view for explaining the cuff and the winding operation of the cuff winding mechanism employed in the blood pressure measurement device according to the first embodiment. FIG. 10 is a fourth plan view for illustrating the cuff and the winding operation of the cuff winding mechanism employed in the blood pressure measurement device according to Embodiment 1. FIG. 10 is a fourth perspective view for explaining the cuff and the winding operation of the cuff winding mechanism employed in the blood pressure measurement device according to the first embodiment. 10 is a partially enlarged plan view showing a connecting portion between the other end of the cuff of the blood pressure measurement device according to Embodiment 2 and a slide moving mechanism. FIG. FIG. 10 is a partial enlarged cross-sectional view showing a connecting portion between the other end of the cuff and the slide movement mechanism of the blood pressure measurement device according to Embodiment 2. It is the 1st figure explaining the top view which shows the shape of the engagement hole provided in the other end side of the cuff of the blood pressure measuring device in Embodiment 3, and an operation principle. FIG. 10 is a second diagram illustrating the operating principle of the engagement hole provided on the other end side of the cuff of the blood pressure measurement device according to the third embodiment. FIG. 10 is a third diagram illustrating the operating principle of the engagement hole provided on the other end side of the cuff of the blood pressure measurement device according to the third embodiment. FIG. 10 is a fourth diagram illustrating the operating principle of an engagement hole provided on the other end side of the cuff of the blood pressure measurement device according to Embodiment 3. FIG. 12 is a plan view showing another form of an engagement hole provided on the other end side of the cuff of the blood pressure measurement device according to Embodiment 3. FIG. 12 is a plan view showing another form of an engagement hole provided on the other end side of the cuff of the blood pressure measurement device according to Embodiment 3. FIG. 12 is a plan view showing another form of an engagement hole provided on the other end side of the cuff of the blood pressure measurement device according to Embodiment 3. FIG. 10 is a partially enlarged plan view showing a connecting portion between the other end of the cuff of the blood pressure measurement device according to Embodiment 4 and a slide movement mechanism. FIG. 10 is a partial enlarged cross-sectional view illustrating a connecting portion between the other end of the cuff of the blood pressure measurement device according to Embodiment 4 and a slide movement mechanism.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Main body, 2 Display part, 3 Upper arm insertion part, 4 Printer part, 10 Upper arm, 30 Opening part, 100,300,500,600 Cuff, 101,301,501,601 Cuff main body part, 100A One end, 100B, 300B, 500B, 600B other end, 110, 410, 510, 710 engagement hole, 110a, 410a, 510a, 510d, 710a, 710d contact surface, 200, 400, 700 slide moving mechanism, 201, 302, 602 pin, 201a shaft Part, 201b flange, 202, 402, 702 base member, 203, 403, 703 slider, 204, 404, 704 driving device, 405, 705 plate, 510b curved part, 510c arc part, SI fixed area, M test subject.

Claims (8)

A blood pressure measurement device comprising an upper arm insertion part in which a band-shaped cuff wound around an upper arm of a subject is accommodated,
The cuff body is arranged in a cylindrical shape so that the cuff is wound around the upper arm of the inserted subject, and one end side thereof is fixed so as not to move, and the other end side is a cylindrical shape of the cuff body portion. Provided to be slidable so that the inner diameter can be reduced or expanded,
The other end side of the cuff is provided with a slide movement mechanism for engaging with the other end side of the cuff and sliding the other end side,
In the engagement between the slide movement mechanism and the other end side of the cuff, the other end side of the cuff is connected to the cuff main body so as to be rotatable ,
The other end of the cuff is provided with a contact surface that is convex toward the moving direction of the other end in the direction in which the cylindrical inner diameter of the cuff main body portion decreases,
The blood pressure measurement device , wherein the slide movement mechanism is provided with a contact member that contacts the contact surface . The other end of the cuff is provided with an arcuate engagement hole having a convex shape toward the moving direction of the other end in a direction in which the cylindrical inner diameter of the cuff main body portion decreases. The contact surface is defined by the opening end surface on the convex shape side of the hole,
The blood pressure measurement device according to claim 1 , wherein the contact member is inserted into the engagement hole . A blood pressure measurement device comprising an upper arm insertion part in which a band-shaped cuff wound around an upper arm of a subject is accommodated,
The cuff body is arranged in a cylindrical shape so that the cuff is wound around the upper arm of the inserted subject, and one end side thereof is fixed so as not to move, and the other end side is a cylindrical shape of the cuff body portion. Provided to be slidable so that the inner diameter can be reduced or expanded,
The other end side of the cuff is provided with a slide movement mechanism for engaging with the other end side of the cuff and sliding the other end side,
In the engagement between the slide movement mechanism and the other end side of the cuff, the other end side of the cuff is connected to the cuff main body so as to be rotatable,
The slide movement mechanism is provided with an arcuate contact surface that is convex toward the movement direction of the other end in the direction in which the cylindrical inner diameter of the cuff main body portion is reduced,
The blood pressure measurement device , wherein a contact member that contacts the contact surface is provided at the other end of the cuff . The slide movement mechanism is provided with an arcuate engagement hole that is convex toward the movement direction of the other end in a direction in which the cylindrical inner diameter of the cuff main body portion is reduced. The contact surface is defined by the opening end surface on the convex shape side,
The blood pressure measurement device according to claim 3 , wherein the contact member is inserted into the engagement hole . A blood pressure measurement device comprising an upper arm insertion part in which a band-shaped cuff wound around an upper arm of a subject is accommodated,
The cuff body is arranged in a cylindrical shape so that the cuff is wound around the upper arm of the inserted subject, and one end side thereof is fixed so as not to move, and the other end side is a cylindrical shape of the cuff body portion. Provided to be slidable so that the inner diameter can be reduced or expanded,
The other end side of the cuff is provided with a slide movement mechanism for engaging with the other end side of the cuff and sliding the other end side,
In the engagement between the slide movement mechanism and the other end side of the cuff, the other end side of the cuff is connected to the cuff main body so as to be rotatable,
The other end of the cuff is provided with a contact surface that is convex toward the moving direction of the other end in the direction in which the cylindrical inner diameter of the cuff body portion expands,
The blood pressure measurement device , wherein the slide movement mechanism is provided with a contact member that contacts the contact surface . The other end of the cuff is provided with a hole having a convex shape toward the moving direction of the other end in the direction in which the cylindrical inner diameter of the cuff main body portion expands, and the opening on the convex side of the hole The abutment surface is defined by an end surface;
The blood pressure measurement device according to claim 5 , wherein the contact member is inserted through the hole . A blood pressure measurement device comprising an upper arm insertion part in which a band-shaped cuff wound around an upper arm of a subject is accommodated,
The cuff body is arranged in a cylindrical shape so that the cuff is wound around the upper arm of the inserted subject, and one end side thereof is fixed so as not to move, and the other end side is a cylindrical shape of the cuff body portion. Provided to be slidable so that the inner diameter can be reduced or expanded,
The other end side of the cuff is provided with a slide movement mechanism for engaging with the other end side of the cuff and sliding the other end side,
In the engagement between the slide movement mechanism and the other end side of the cuff, the other end side of the cuff is connected to the cuff main body so as to be rotatable,
The slide movement mechanism is provided with a contact surface that is convex toward the movement direction of the other end in the direction in which the cylindrical inner diameter of the cuff body portion expands,
The blood pressure measurement device , wherein a contact member that contacts the contact surface is provided at the other end of the cuff . The slide moving mechanism is provided with a hole having a convex shape toward the moving direction of the other end in a direction in which the cylindrical inner diameter of the cuff main body portion expands, and the opening end surface on the convex shape side of the hole. The abutment surface is defined;
The blood pressure measurement device according to claim 7, wherein the contact member is inserted through the hole .

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