JP2006305142A - Sphygmomanometer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sphygmomanometer, facilitating insertion of an arm, and setting the arm or the like in a proper position. <P>SOLUTION: This sphygmomanometer includes: a semi-cylindrical base housing 3, the top or the side of which is opened to allow a user to insert his arm M from the opening surface; a semi-cylindrical movable housing 10 stored in a base housing during non-operation time and slid along the circumferential direction of the base housing 3 during the operation so that the own tip 10a reaches the base end part 3a in the circumferential direction of the base housing to close the opening surface, thereby forming a cylindrical housing 5 together with the base housing; and a cuff belt 12, the tip part 12a of which is fixed to the tip in the sliding direction of the movable housing, the middle part of which is elastically energized in the diameter enlarging direction to be curved and disposed along the inner periphery of the movable housing, and the base end part 12b of which is fixed to the vicinity of the base end part of the base housing in measuring the blood pressure. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a blood pressure monitor of a novel type (arm-on type) that can easily insert an arm.

  Conventionally, when a subject passes his arm through a cylindrical housing and the switch is turned on, an automatic sphygmomanometer (arm-in sphygmomanometer) is known in which cuff bands automatically wrap around the arm and blood pressure measurement begins. (See Patent Documents 1 and 2).

JP 2004-254882 A JP 2000-107140 A

  However, the type of passing the arm through the cylindrical housing has a problem that it is difficult to pass the arm through the narrow hole. In addition, since it is impossible to see how much the arm is put, it may not be set at an appropriate position.

  In view of the above circumstances, an object of the present invention is to provide a sphygmomanometer that facilitates insertion of a measurement site such as an arm and can be set at an appropriate position.

  The invention according to claim 1 is a semi-cylindrical base housing in which an upper surface or a side surface is opened and a measurement site such as an arm can be inserted from the opening surface, and is accommodated along the base housing when not in use. A semi-cylinder that sometimes slides along the circumferential direction of the base housing and closes the opening surface to form a cylindrical housing together with the base housing when its tip reaches the circumferential base end of the base housing The movable housing is fixed to the distal end of the movable housing in the sliding direction, and the intermediate portion is elastically biased in the diameter-expanding direction so that it is curved along the inner periphery of the movable housing. And a base end portion is fixed in advance in the vicinity of the base end portion of the base housing, or at least includes a cuff belt fixed at the time of blood pressure measurement. And butterflies.

  The invention according to claim 2 is the sphygmomanometer according to claim 1, wherein a feeding allowance that allows a necessary length of the cuff band to be fed into the base housing is secured at a proximal end portion of the cuff band. The pulling-out allowance is pulled out to the outside of the base housing through the vicinity of the base end portion of the base housing, and a tensile force is applied to the cuff band by pulling the cuff band in the direction opposite to the feeding direction at the pull-out end. A tension mechanism is provided, and a stopper that restricts the pulling out of the cuff band beyond the feeding allowance by the tension mechanism to the outside of the base housing, and a base end portion of the cuff band at a position where the cuff band is fed out as much as necessary during blood pressure measurement. And a locking means for locking.

  The invention of claim 3 is the sphygmomanometer according to claim 2, wherein a cuff spring made of a flexible sheet is provided at the intermediate part of the cuff belt as means for elastically urging the intermediate part in the diameter increasing direction. Is provided on the outer peripheral side of the cuff belt, and the stopper for restricting the withdrawal beyond the allowance to the outside of the base housing is provided at the base end portion of the cuff spring.

  The invention of claim 4 is the sphygmomanometer according to claim 2 or 3, wherein the locking means locks the proximal end portion of the cuff belt in conjunction with a housing locking mechanism that locks the movable housing in the closed position. It is a thing to do.

  The invention of claim 5 is the sphygmomanometer according to any one of claims 2 to 4, wherein a side surface of the base housing is opened, and a measurement site such as the arm is placed on the inner bottom of the base housing And a portion corresponding to the feeding allowance secured at the base end portion of the cuff belt is drawn out to the outside of the base housing through the lower side of the mounting base.

  The invention of claim 6 is the sphygmomanometer according to any one of claims 1 to 5, wherein a guide rail for guiding the slide of the movable housing is provided in the base housing.

  A seventh aspect of the invention is the sphygmomanometer according to any one of the first to sixth aspects, further comprising a motor for opening and closing the movable housing.

  The invention of claim 8 is the sphygmomanometer according to claim 7, wherein a worm gear mechanism is used as means for converting the rotation of the motor into a sliding operation in the circumferential direction of the movable housing, The worm gear mechanism also serves as a housing lock mechanism that locks the movable housing in a closed position.

  According to the first aspect of the present invention, a portion to be measured such as an arm (hereinafter, representatively described as “arm”) is inserted into the semi-cylindrical base housing from the upper surface or side opening thereof, and the movable housing is inserted. If the opening of the base housing is closed by sliding, the cuff belt can be properly wound around the arm simultaneously by the operation. Therefore, it is easier to insert the arm than when the arm is passed through the through-hole of the housing that is cylindrical from the beginning. Also, for example, when passing an arm through a cylindrical housing as in the prior art, it may be impossible to insert the arm to the back because the middle of the arm is thick, but the present invention sets the arm to the base housing in the open state. Since the movable housing is closed afterwards, the arm can be inserted regardless of the thickness on the way. In addition, since the arm can be inserted into the base housing in the open state, the arm position can be determined while looking from above, and the arm is set to the most appropriate position for measurement by closing the movable housing in that state. can do.

  According to the second aspect of the present invention, a feeding allowance is secured at the base end portion of the cuff belt so that the cuff belt can be freely fed into the base housing by a required length. Since a tensile force is applied to the band in the pull-out direction, the cuff band can be wound while adjusting to an appropriate length even for a person with thick arms. In addition, the cuff band is not pulled out beyond the base housing due to the action of the stopper, so always keep the basic length of the cuff band inside the base housing in a curved state. I can leave. Therefore, the cuff band is not forcibly pulled by the slide of the movable housing, and the cuff band is wound around the arm while maintaining the curved shape of the intermediate portion. In addition, when measuring blood pressure, the locking means locks the base end of the cuff band at a position where the cuff band is extended as much as necessary, so that the cuff band is further drawn out by being dragged by air introduction. Nor.

  According to the third aspect of the present invention, since the cuff spring made of the flexible sheet is provided on the outer peripheral side of the cuff band at the middle part of the cuff band, the air to the cuff band in the state wound around the arm is provided. The reaction force due to the introduction can be reliably received by the cuff spring. Further, since the stopper is provided at the base end portion of the cuff spring, the cuff spring is not pulled out of the base housing. For this reason, the elastic force of the cuff spring can be exhibited sufficiently as a force for holding the cuff belt in a curved state.

  According to the fourth aspect of the present invention, the movable housing can be locked at the closed position, and at the same time, the base end portion of the cuff belt can be locked so that it cannot be further extended. Therefore, no special operation for fixing the cuff belt is required.

  According to the invention of claim 5, since the arm can be inserted into the base housing from the side and set on the mounting base, the insertion can be easily performed. Further, since the portion corresponding to the feeding allowance secured at the base end portion of the cuff belt is pulled out to the outside of the base housing through the lower side of the platform, it does not get in the way.

  According to the invention of claim 6, since the movable housing can be moved while being guided by the guide rail, the movable housing can be smoothly slid.

  According to the invention of claim 7, since the movable housing is opened and closed by the motor, the cuff belt can be properly wound only by setting the arm in the base housing and turning on the switch. With this, blood pressure can be measured.

  According to the eighth aspect of the present invention, since the worm gear mechanism is interposed between the motor and the movable housing, and the worm gear mechanism also serves as the housing lock mechanism, it is not necessary to provide a separate housing lock mechanism.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a front view of the blood pressure monitor according to the embodiment as viewed from the arm insertion direction for explaining the operation, wherein (a) is an initial state (when not in use), and (b) to (d) are operations. FIGS. 2E to 2H are diagrams illustrating the operation from the completion of measurement to the end of operation. Moreover, FIG. 3 is a figure which shows typically the principal part of the blood pressure meter of the embodiment.

  This sphygmomanometer is provided with a device main body 1 equipped with measurement elements 50 such as an air pump, a pressure reducing valve, a sensor, and an electronic circuit necessary for blood pressure measurement, and is fixedly provided on the device main body 1 and has a side surface (or an upper surface). A semi-cylindrical base housing 3 that is open and into which the arm M can be inserted, and is accommodated along the base housing 3 when not in use, and slides along the circumferential direction of the base housing 3 when in use. A semi-cylindrical movable housing 10 that closes the opening surface and forms a cylindrical housing 5 together with the base housing 3 when the distal end 10a of the base housing 3 reaches the base end portion 3a in the circumferential direction of the base housing 3; The front end portion 12a of the housing 10 is fixed to the front end 10a of the housing 10 in the sliding direction, and the intermediate portion is elastically biased in the diameter increasing direction along the inner periphery of the movable housing 10. Together they are arranged in a curved shape, and includes a cuff 12 having a base end portion 12b is fixed at the time of blood pressure measurement in the vicinity of the base end portion 3a of the base housing 3, a.

  As schematically shown in FIG. 3, the base end portion 12b of the cuff belt 12 is secured with a feed allowance 12c that allows the required length of the cuff belt 12 to be fed into the base housing 3. A portion of the margin 12 c is drawn out to the outside of the base housing 3 via the vicinity of the base end portion 3 a of the base housing 3. A pulling mechanism 40 that applies a tensile force to the cuff band 12 by pulling the cuff band 12 in the direction E opposite to the feeding direction D is provided at the drawing end. As the pulling mechanism 40, for example, a winding roller urged in the winding direction by a spring is used, and the cuff band 12 is wound around the outer periphery of the winding roller by winding the drawing end of the cuff band 12 around the winding roller. On the other hand, tension is always given.

  As shown in FIG. 1 (c), a base 2 on which the arm M is placed is provided on the inner bottom portion of the base housing 3, and the base end portion of the cuff belt 12 passes through the lower side of the base 2. A portion of the feed allowance 12 c provided in 12 b is drawn out of the base housing 3 and wound around a take-up roller constituting the pulling mechanism 40. Therefore, the base end portion 12b of the cuff belt 12 does not get in the way when the arm M is placed.

  Further, as shown in FIG. 3, the base end portion 12b of the cuff band 12 draws the cuff band 12 having a feeding allowance of 12c or more by the pulling mechanism 40 to the outside of the base housing 3 (that is, winding by a winding roller). 12c, and a cuff band locking mechanism (locking means) 16 that locks the base end portion 12b of the cuff band 12 at a position extended by a necessary amount during blood pressure measurement.

  The cuff band locking mechanism 16 is configured to lock the base end portion 12b of the cuff band 12 in conjunction with a housing locking mechanism 15 (see FIG. 1C) that locks the movable housing 10 in the closed position. .

  Further, a cuff spring 20 made of a flexible sheet is provided at the intermediate portion of the cuff belt 12 as means for elastically urging the intermediate portion in the diameter increasing direction. The cuff spring 20 is disposed on the outer peripheral side of the air bag 21 which is the main element of the cuff band 12, and the base end of the cuff spring 20 is drawn out more than the above-described feeding allowance 12 c of the cuff band 12 to the outside of the base housing 3. A stopper 12s is provided to limit the above.

  The base housing 3 is provided with a guide rail 3b for guiding the slide of the movable housing 10, and a guide portion 11 provided on the movable housing 10 is guided to the guide rail 3b. Further, as shown in FIG. 1B, the apparatus main body 1 is provided with a motor 32 for opening and closing the movable housing 10, and a gear 32a attached to the rotating shaft of the motor 32 is provided with the movable housing. By meshing with the rack gear 31 on the 10 side, the movable housing 10 is slid in the circumferential direction by the rotation of the motor 32.

Next, the operation will be described.
When blood pressure is measured with this sphygmomanometer, as shown in FIG. 1A, the subject inserts the arm M into the semicylindrical base housing 3 from the side opening and places it on the platform 2. Then, a start switch (not shown) is pressed. Then, the movable housing 10 slides by the force of the motor 32 in the direction indicated by the arrow A in (b), and the opening of the base housing 3 is closed as shown in (c). At the same time, the cuff band 12 is wound around the arm M and tightened as indicated by arrows B and C.

  At this time, the intermediate portion of the cuff belt 12 is held in a curved shape by the cuff spring 21 (see FIG. 3), and the cuff belt 12 is tensioned, so that the rotating slide of the movable housing 10 Accordingly, the cuff strip 12 is wound around the arm M after being reduced in diameter while being bent without being forcibly pulled.

  That is, the base end portion 12b of the cuff belt 12 has a feeding allowance 12c so that the cuff belt 12 can be freely fed into the base housing 3 by a required length. Since a tension force is always applied to the band 12 by the tension mechanism 40, the cuff band 12 can be wound while adjusting to an appropriate length even for a person with a thick arm M.

  In addition, the cuff band 12 is prevented from being pulled out of the base housing 3 beyond the feeding allowance 12c by the action of the stopper 12s in the stage before feeding, so that the basic length is always kept inside the base housing 3. The cuff belt 12 is secured in a curved state. Therefore, as described above, the cuff belt 12 is not forcibly pulled by the rotating slide of the movable housing 10 and is wound around the arm M in a stable state while maintaining a curved shape.

  When the movable housing 10 reaches the closed position while the arm M is wound around the cuff belt 12 in this manner, the housing lock mechanism 15 is activated to lock the movable housing 10 in the closed position. At the same time, the cuff belt locking mechanism 16 operates in conjunction with the base end portion 12b of the cuff belt 12 to lock.

  Next, in this state, pressurized air is introduced into the cuff belt 12 to perform pressurization, and then, as shown in FIG. 2 (e), the process proceeds to a decompression process, blood pressure measurement is performed, and the result is displayed. Thereafter, the movable housing 10 slides to the initial position as shown in (g) while the cuff belt 12 is loosened as shown in (f), and the cuff belt 12 also returns to the original position. And operation | movement is complete | finished when the movable housing 10 finally opens like (h).

  As described above, in the sphygmomanometer, the arm M is inserted into the side opening of the semi-cylindrical base housing 3 and the movable housing 10 is slid to close the opening of the base housing 3. Since the belt 12 can be wound around the arm, the arm M can be easily inserted unlike the case where the belt 12 is passed through the cylindrical housing as in the prior art. Further, since the movable housing 10 is closed after the arm M is set in the opened base housing 3, the arm M can be inserted regardless of the thickness of the middle. Further, since the arm M can be set on the base housing 3 in the opened state, the position of the arm M can be determined while looking from above, and the most suitable position for measurement by closing the movable housing 10 in this state. It is easy to set the arm M to the arm.

  Since the movable housing 10 can be moved while being guided by the guide rail 3b, the movable housing 10 can be smoothly slid, and the movable housing 10 is opened and closed by the motor 32. Is set in the base housing 3 and the switch is turned on, the cuff belt 12 can be wound properly, and blood pressure can be measured in that state.

  Further, in this sphygmomanometer, the cuff belt lock mechanism 16 locks the base end portion 12b of the cuff belt 12 at a position extended by a necessary amount at the time of blood pressure measurement. There will be no extra payout. Further, since the cuff spring 21 reliably receives the reaction force due to the introduction of air into the cuff belt 12 in the state of being wound around the arm M, blood pressure can be accurately measured with a small amount of air introduction. In addition, since the stopper 12s is provided at the base end portion of the cuff spring 21, the cuff coupling 21 is not pulled out of the base housing 3, so that the elastic force of the cuff spring 21 is maximized. It can be used as a force for holding the belt 12 in a curved state.

  In addition, since the movable housing 10 is locked at the closed position and the base end portion 12b of the cuff band 12 is locked in conjunction with the movable housing 10, no special operation for fixing the cuff band 12 is required.

  In the above-described embodiment, the case where the gear 32a attached to the rotating shaft of the motor 32 is meshed with the rack gear 31 on the movable housing 10 side is shown. However, power transmission between the motor 32 and the movable housing 10 is transmitted to the worm gear. If the mechanism is used, the worm gear mechanism can also serve as a housing lock mechanism that locks the movable housing 10 in the closed position due to the irreversibility of the power transmission. Then, it is not necessary to provide a separate housing lock mechanism. However, in that case, the means for locking the base end portion 12b of the cuff belt 12 needs to be configured to operate independently.

  Moreover, although the case where the movable housing 10 was slid with the motor 32 was shown in the said embodiment, you may carry out manually.

  Further, in the above embodiment, when the feeding allowance 12c is secured at the base end portion 12b of the cuff belt 12 and the cuff belt 12 can be freely fed out as much as necessary while applying a tensile force by the pulling mechanism 40 (the arm In the example shown in FIG. 4, the thickness of the target arm M is narrowed down to a certain extent, and the cuff belt 12 The length may be fixedly determined. In that case, the base end portion 12b of the cuff strip 12 is fixed to the base end portion 3a of the base housing 3 in advance, and the cuff strip 12 is configured not to be extended later. In such a configuration, the versatility with respect to the thickness of the arm M is inferior, but the configuration can be simplified. In this case, the difference in arm thickness is dealt with by the amount of air introduced into the cuff belt 12.

It is the front view seen from the insertion direction of the arm for composition and operation explanatory drawing of a blood pressure monitor of an embodiment of the present invention, (a) is an initial state (when not in use), (b)-(d) It is a figure which shows the state when it enters into the middle of operation | movement and blood pressure measurement. (E)-(h) is operation | movement explanatory drawing from the completion of a measurement to completion | finish of operation | movement. It is a figure which shows typically the principal part structure of the embodiment, (a) is the state which hold | maintains the movable housing in an open position, (b) is a front view which respectively shows the state which operated the movable housing to the closed position It is. It is a figure which shows typically the principal part structure of another embodiment of this invention, (a) is the state which hold | maintains the movable housing in an open position, (b) is the state which operated the movable housing to the closed position. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 2 Base 3 Base housing 3a Base end part 3b Guide rail 5 Cylindrical housing 10 Movable housing 10a Tip 12 Cuff belt 12a Tip 12b Base end 12c Feeding allowance 12s Stopper 15 Housing lock mechanism 16 Cuff belt lock mechanism (locking means) )
20 Cuff spring 32 Motor 40 Tension mechanism M Arm

Claims (8)

A semi-cylindrical base housing in which an upper surface or a side surface is open and a measurement site such as an arm can be inserted from the opening surface;
It is accommodated along the base housing when not in use, slides along the circumferential direction of the base housing when in use, and closes the opening surface when its tip reaches the base end in the circumferential direction of the base housing. A semi-cylindrical movable housing that forms a cylindrical housing with the base housing;
The distal end portion of the movable housing is fixed to the distal end in the sliding direction, and the intermediate portion is elastically biased in the diameter increasing direction so as to be curved along the inner periphery of the movable housing. A cuff band that is fixed in advance in the vicinity of the base end portion of the base housing, or at least fixed during blood pressure measurement,
A blood pressure monitor characterized by comprising: The sphygmomanometer according to claim 1,
At the base end portion of the cuff band, a payout allowance that allows the required length of the cuff belt to be extended into the base housing is secured, and the payout allowance is passed through the vicinity of the base end portion of the base housing. A pulling mechanism that pulls out the housing and pulls the cuff band in the direction opposite to the feed-out direction at the pull-out end is provided with a tension mechanism that applies a tensile force to the cuff band. A sphygmomanometer, comprising: a stopper that restricts drawing out of the housing; and a lock unit that locks the base end of the cuff belt at a position that is extended by a necessary amount during blood pressure measurement. The sphygmomanometer according to claim 2,
A cuff spring made of a flexible sheet is provided on the outer side of the cuff band as a means for elastically urging the intermediate part in the diameter-expanding direction at the intermediate part of the cuff band, and the base end portion of the cuff spring Further, the blood pressure monitor is provided with the stopper for restricting the drawing beyond the feeding allowance to the outside of the base housing. The sphygmomanometer according to claim 2 or 3,
The sphygmomanometer, wherein the locking means locks the proximal end portion of the cuff belt in conjunction with a housing locking mechanism that locks the movable housing in a closed position. The sphygmomanometer according to any one of claims 2 to 4,
A side surface of the base housing is opened, and a platform for placing a measurement site such as the arm on the inner bottom portion of the base housing is provided, and secured at the base end of the cuff belt through the lower side of the platform. A sphygmomanometer, wherein a portion corresponding to a payout allowance is drawn out of the base housing. The sphygmomanometer according to any one of claims 1 to 5,
A blood pressure monitor, wherein the base housing is provided with a guide rail for guiding the slide of the movable housing. The blood pressure monitor according to any one of claims 1 to 6,
A sphygmomanometer comprising a motor for opening and closing the movable housing. The sphygmomanometer according to claim 7,
A worm gear mechanism is used as a means for converting the rotation of the motor into a sliding operation in the circumferential direction of the movable housing, and the worm gear mechanism includes a housing lock mechanism that locks the movable housing in a closed position. A sphygmomanometer characterized by also serving.

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