WO2011108335A1 - 血圧情報測定装置用カフおよびこれを備えた血圧情報測定装置 - Google Patents
血圧情報測定装置用カフおよびこれを備えた血圧情報測定装置 Download PDFInfo
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- WO2011108335A1 WO2011108335A1 PCT/JP2011/052391 JP2011052391W WO2011108335A1 WO 2011108335 A1 WO2011108335 A1 WO 2011108335A1 JP 2011052391 W JP2011052391 W JP 2011052391W WO 2011108335 A1 WO2011108335 A1 WO 2011108335A1
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- WIPO (PCT)
- Prior art keywords
- exterior cover
- blood pressure
- annular ring
- cuff
- guide member
- Prior art date
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- 0 CC1C*(C)=CCC1 Chemical compound CC1C*(C)=CCC1 0.000 description 4
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
- A61B5/02233—Occluders specially adapted therefor
Definitions
- the present invention relates to a cuff for a blood pressure information measurement device that is used by being attached to a measurement site when measuring blood pressure information such as a blood pressure value, and a blood pressure information measurement device including the same.
- the blood pressure information measurement device acquires blood pressure information of the subject.
- the blood pressure information acquired by the blood pressure information measurement device includes systolic blood pressure value (maximum blood pressure value), diastolic blood pressure value (minimum blood pressure value), average blood pressure value, subject's pulse wave, pulse, AI (Augmentation Index) value, etc. And various information on the circulatory system. Based on these blood pressure information, it is possible to grasp the load of the heart or changes in arterial stiffness.
- the blood pressure information measuring device is used for early detection, prevention or treatment of circulatory diseases.
- a cuff for a blood pressure information measuring device (hereinafter also simply referred to as a cuff) is used for measuring blood pressure information (see Japanese Utility Model Laid-Open No. 5-39504 (Patent Document 1)).
- the cuff includes a fluid bag for compressing the living body (artery).
- the cuff is a band-shaped member having a lumen, and can be wound around a part of a living body such as the upper arm.
- a cuff is wound around a part of the body surface of the living body.
- a fluid such as gas or liquid is injected into or discharged from the fluid bag contained in the cuff.
- the fluid bag expands.
- the fluid bag contracts.
- a change in the internal pressure of the fluid bag that occurs when the fluid bag expands or contracts is acquired as an arterial pressure pulse wave or a blood pressure value.
- a general cuff has an air bag as a fluid bag and a strip-shaped outer cover.
- the exterior cover includes an air bag.
- a hook-and-loop fastener is provided on the surface of the exterior cover.
- An annular ring is attached to one end in the longitudinal direction of the exterior cover.
- the cuff is formed in an annular shape by inserting the other end portion of the exterior cover in the longitudinal direction through the annular ring and turning it back.
- An object of the present invention is to provide a cuff for a blood pressure information measurement device that can easily and repeatedly reproduce the same wearing state when attached to a measurement site, and a blood pressure information measurement device including the same.
- the blood pressure information measuring device cuff includes a fluid bag, an exterior cover, a first guide member, and a second guide member.
- the fluid bag presses the living body.
- the said exterior cover is strip
- the outer cover encloses the fluid bag on one end side.
- the exterior cover has a first main surface and a second main surface. The second main surface is opposed to the living body by being annularly wound around the living body.
- the first guide member is provided on the one end side of the exterior cover from a position where the fluid bag is provided.
- the first guide member has a portion formed in an annular shape so that the other end of the exterior cover is inserted and folded.
- the second guide member is provided on the first main surface of the exterior cover.
- the second guide member has a portion formed in an annular shape so as to pass through the other end portion of the exterior cover through which the first guide member is inserted.
- the exterior cover is configured such that the portion of the surface of the living body where the distance from the artery inside the living body is shortest and the fluid bag face each other. And fixed to the living body.
- the living body is the upper arm
- the second guide member is the upper arm three in a state where the cuff for the blood pressure information measurement device is fixed to the upper arm. It is provided on the first main surface located on the muscle side.
- the living body is one upper arm
- the second guide member is the other in a state where the cuff for the blood pressure information measurement device is fixed to the upper arm.
- the blood pressure information measuring device cuff according to another embodiment of the present invention further includes a locking member.
- the locking member is provided on the first main surface. The locking member is positioned closer to the second guide member between the second guide member and the first guide member in the longitudinal direction in a state in which the exterior cover is expanded.
- the blood pressure information measuring device cuff according to another embodiment of the present invention further includes a third guide member.
- the third guide member is provided on the first main surface.
- the third guide member is located between the first guide member and the second guide member in the longitudinal direction in a state where the exterior cover is expanded. The other end inserted through the second guide member is inserted through the third guide member.
- the other end portion inserted through the third guide member is folded back at the third guide member, and is then returned to the second guide member again. It is inserted.
- the blood pressure information measuring device cuff according to another embodiment of the present invention further includes a third guide member.
- the third guide member is provided on the first main surface.
- the third guide member is located between the second guide member and the other end portion in the longitudinal direction in a state where the exterior cover is expanded. The other end portion, which is inserted through the first guide member and turned back, is inserted through the third guide member and then inserted into the second guide member.
- the blood pressure information measuring device cuff according to another embodiment of the present invention further includes a third guide member.
- the third guide member is provided on the second main surface.
- the third guide member is located between the second guide member and the other end portion in the longitudinal direction in a state where the exterior cover is expanded. The other end portion inserted through the second guide member is folded back at the second guide member and then inserted into the third guide member.
- a blood pressure information measurement device includes the blood pressure information measurement device cuff according to any one of the above, an expansion / contraction mechanism that expands / contracts the fluid bag, and a blood pressure information acquisition unit that acquires blood pressure information. ing.
- a cuff for a blood pressure information measuring device that can easily and repeatedly reproduce the same wearing state, and a blood pressure information measuring device including the same, when attached to a measurement site.
- FIG. 3 is a cross-sectional view showing a cuff in the first embodiment.
- FIG. It is a figure which shows a mode that the cuff in Embodiment 1 was mounted
- 3 is a diagram showing functional blocks of a sphygmomanometer according to Embodiment 1.
- FIG. 5 is a diagram showing a flow of processing of a sphygmomanometer in the first embodiment.
- FIG. 6 is a first cross-sectional view showing the manner in which the cuff in the first embodiment is attached to the upper arm over time.
- FIG. 6 is a second cross-sectional view showing how the cuff in the first embodiment is attached to the upper arm over time.
- FIG. 6 is a cross-sectional view showing a cuff in the first modification example of the first embodiment.
- FIG. 10 is a perspective view partially showing a cuff in the second modification example of the first embodiment.
- FIG. 10 is a perspective view partially showing a cuff in the third modification example of the first embodiment.
- FIG. 10 is a cross-sectional view showing a cuff in the second embodiment. It is a top view which shows a mode that the cuff in Embodiment 2 was expand
- FIG. 10 is a cross-sectional view showing a cuff in a modification of the second embodiment.
- FIG. 10 is a plan view showing a state in which a cuff is developed in a modified example of the second embodiment.
- FIG. 10 is a cross-sectional view showing a cuff in the third embodiment.
- FIG. 10 is a plan view showing a state in which a cuff in the third embodiment is developed.
- FIG. 10 is a cross-sectional view showing a cuff in the fourth embodiment. It is a top view which shows a mode that the cuff in Embodiment 4 was expand
- a blood pressure information measuring device cuff and a blood pressure information measuring device including the same according to each embodiment of the present invention will be described below with reference to the drawings.
- a sphygmomanometer cuff that is used by being wound around the upper arm will be described as an example of a cuff for a blood pressure information measurement device.
- a blood pressure information measuring device including a blood pressure information measuring device cuff, a blood pressure meter capable of measuring blood pressure values such as systolic blood pressure values and diastolic blood pressure values using the blood pressure meter cuff will be described.
- sphygmomanometer 1 includes a main body 10, a cuff 20 ⁇ / b> A, and an air tube 80.
- the main body 10 is a box-shaped housing.
- a display unit 12 and an operation unit 15 are provided on the upper surface of the main body 10.
- the main body 10 is used by being placed on a table or the like during measurement.
- the cuff 20A includes an outer cover 30, an air bag 34 (see FIG. 2) contained as a fluid bag in the outer cover 30, a hook-and-loop fastener 41 (locking member), a hook-and-loop fastener 42, and a first annular ring 36 ( A first guide member) and a second annular ring 38 (second guide member).
- the exterior cover 30 has a front surface 31 (first main surface), a back surface 32 (second main surface), one end 30a, and the other end 30b.
- the exterior cover 30 is configured as a bag-like member by superimposing a member constituting the front surface 31 and a member constituting the back surface 32 and joining the peripheral edges thereof (for example, sewing or welding).
- the cuff 20A is disposed so that the back surface 32 of the exterior cover 30 and a living body such as an upper arm face each other.
- 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 bladder 34 is not hindered.
- a member having poor elasticity as compared with the member constituting the back surface 32 side of the exterior cover 30 is used.
- a cloth made of synthetic fibers such as polyamide (PA) and polyester capable of adjusting the size of stretchability relatively easily is used.
- air bag 34 is connected to air tube 80.
- the air bag 34 is included in the exterior cover 30 in a state of being connected to the air tube 80.
- the air bag 34 is comprised from a bag-shaped member, and has an expansion / contraction space inside.
- the air bag 34 is preferably configured using a resin sheet.
- the air bag 34 is configured in a bag shape by, for example, superimposing two resin sheets and welding the peripheral edges thereof.
- the material of the resin sheet constituting the air bag 34 is, for example, ethylene-vinyl acetate copolymer (EVA), soft vinyl chloride (PVC), polyurethane (PU), natural rubber (NR), or the like.
- EVA ethylene-vinyl acetate copolymer
- PVC soft vinyl chloride
- PU polyurethane
- NR natural rubber
- an artery 71 flows.
- a portion 70a where the distance L71 between the surface of the upper arm 70 and the artery 71 is the shortest is defined.
- the exterior cover 30 may be fixed to the upper arm 70 in a state where the portion 70a and the air bag 34 are arranged to face each other. More preferably, the exterior cover 30 may be fixed to the upper arm 70 in a state where the portion 70a and the substantially central position 34c of the air bag 34 are arranged to face each other.
- the air tube 80 connects the main body 10 configured separately and the air bag 34 included in the cuff 20A.
- the air bladder 34 is inflated by injecting fluid from the main body 10 through the air tube 80.
- the air bag 34 contracts when the fluid is discharged through the air tube 80.
- the biology such as the upper arm (not shown) can be pressed.
- the air tube 80 may be provided at a position such that the air tube 80 is disposed on the biceps brachii side (upper side in the drawing) when the exterior cover 30 (cuff 20A) is fixed to the upper arm 70.
- the hook-and-loop fastener 41 is provided in a substantially rectangular shape on the surface 31 of the exterior cover 30.
- the hook-and-loop fastener 41 is provided at a predetermined position between the one end 30 a and the other end 30 b in the longitudinal direction of the exterior cover 30.
- the hook-and-loop fastener 41 is provided between the second annular ring 38 (details will be described later) and the first annular ring 36 in the longitudinal direction in a state where the exterior cover 30 is unfolded.
- the second annular ring 38 may be disposed closer to the second annular ring 38.
- the hook-and-loop fastener 41 more preferably has a mounting cover 33a for mounting the second annular ring 38 between the second annular ring 38 and the first annular ring 36 in the longitudinal direction in a state in which the exterior cover 30 is expanded. It is good to arrange
- the surface fastener 42 is provided on the surface 31 of the exterior cover 30 similarly to the surface fastener 41.
- the hook-and-loop fastener 42 is provided on the other end 30 b side of the exterior cover 30.
- the hook-and-loop fastener 41 and the hook-and-loop fastener 42 can be locked to each other.
- the hook-and-loop fastener 42 is partially provided on the surface 31 of the exterior cover 30.
- the hook-and-loop fastener 42 and the member constituting the surface 31 side of the exterior cover 30 are configured by different members.
- the entire member constituting the surface 31 side of the exterior cover 30 may be a member that can be engaged with the hook-and-loop fastener 41. More preferably, only the member constituting the other end 30b side of the surface 31 side of the exterior cover 30 is preferably a member that can be engaged with the hook-and-loop fastener 41.
- the first annular ring 36 is attached in the vicinity of one end 30 a of the exterior cover 30.
- the first annular ring 36 has an insertion hole 36 a through which a portion on the other end 30 b side of the exterior cover 30 can be inserted.
- the first annular ring 36 may be formed of, for example, a metal member that hardly causes friction between the first annular ring 36 and the exterior cover 30.
- the first annular ring 36 is formed by inserting a portion on the one end 30a side of the outer cover 30 into the insertion hole 36a of the first annular ring 36, and then folding back and stitching a portion on the one end 30a side of the outer cover 30. It is attached to the exterior cover 30.
- the exterior cover 30 is formed in an annular shape by inserting the other end 30 b of the exterior cover 30 into the insertion hole 36 a of the first annular ring 36.
- the portion on the other end 30b side of the outer cover 30 is inserted through the insertion hole 36a, and then folded back around the first annular ring 36 along the circumferential direction of the insertion hole 36a of the outer cover 30.
- the second annular ring 38 is attached on the surface 31 of the exterior cover 30.
- the second annular ring 38 has an insertion hole 38a through which the portion on the other end 30b side of the exterior cover 30 and the attachment cover 33a can be inserted.
- the second annular ring 38 may be constituted by, for example, a metal member that hardly causes friction with the exterior cover 30.
- the attachment cover 33a is stitched onto the surface 31 of the exterior cover 30 in a state of being inserted into the insertion hole 38a of the second annular ring 38.
- the second annular ring 38 is attached on the surface 31 of the exterior cover 30 by being sandwiched between the attachment cover 33 a and the exterior cover 30.
- the second annular ring 38 is provided on the surface 31 positioned on the right arm upper arm side (the right side of the drawing) when the cuff 20 ⁇ / b> A is fixed to the left arm upper arm 70. . More preferably, the second annular ring 38 may be provided on the surface 31 located closest to the right arm upper arm when the cuff 20A is fixed to the left arm upper arm 70.
- the second annular ring 38 is disposed at a position where the second annular ring 38 and the air bag 34 do not overlap in the plan view even if they are disposed at positions where they overlap in the plan view (in a state shifted in the longitudinal direction). It may be.
- the other end 30b of the exterior cover 30 inserted and folded through the first annular ring 36 is overlapped along the outer side (surface 31 side) of the annularly formed portion of the exterior cover 30.
- the other end 30b is inserted into the insertion hole 38a of the second annular ring 38 and is drawn outward from the annularly formed portion of the exterior cover 30.
- the upper arm 70 of the subject's left arm is inserted into the annular cover portion of the exterior cover 30.
- the other end 30b of the exterior cover 30 is pulled in the direction indicated by the arrow AR1 by the subject's right hand (not shown).
- the exterior cover 30 is fastened to the upper arm 70.
- the hook-and-loop fastener 41 and the hook-and-loop fastener 42 are locked to each other by being overlapped, and the fastening state with respect to the upper arm 70 of the exterior cover 30 is maintained.
- the air bag contained in the exterior cover 30 is fixed to the upper arm 70, and blood pressure information can be measured.
- the main body 10 of the sphygmomanometer 1 includes a control unit 11, a memory unit 13, a power supply unit 14, a pressurizing pump 16a, an exhaust valve 16b, and a pressure sensor 16c. , A pressure pump drive circuit 17a, an exhaust valve drive circuit 17b, and an oscillation circuit 17c.
- the pressurizing pump 16a, the exhaust valve 16b, and the pressure sensor 16c correspond to the air system component 16 in the sphygmomanometer 1.
- the pressurizing pump 16a and the exhaust valve 16b correspond to an inflating / contracting mechanism in the sphygmomanometer 1 for inflating and deflating the air bladder 34.
- the air bag 34 has an expansion / contraction space as a lumen.
- the air bag 34 is connected to each of the pressurization pump 16a, the exhaust valve 16b, and the pressure sensor 16c via an air pipe 80.
- the control unit 11 is composed of, for example, a CPU (Central Processing Unit).
- the control unit 11 controls the entire sphygmomanometer 1.
- the display unit 12 is configured by, for example, an LCD (Liquid Crystal Display).
- the display unit 12 displays measurement results and the like.
- the memory unit 13 includes a processing memory 13a and a data memory 13b.
- the memory unit 13 stores a program for causing the control unit 11 or the like to execute a processing procedure for blood pressure value measurement, or stores a measurement result or the like, using the processing memory 13a and the data memory 13b.
- the power supply unit 14 supplies power as a power source to the control unit 11.
- the operation unit 15 includes a power switch 15a, a measurement switch 15b, a stop switch 15c, and a record call switch 15d.
- the operation unit 15 receives an operation from the switches 15 a to 15 d by a subject or the like and inputs an external command to the control unit 11 or the power supply unit 14.
- the control unit 11 inputs control signals for driving the pressure pump 16a and the exhaust valve 16b to the pressure pump drive circuit 17a and the exhaust valve drive circuit 17b, respectively.
- the control unit 11 inputs a blood pressure value as a measurement result to the memory unit 13 or the display unit 12.
- the control unit 11 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 16c.
- the blood pressure value acquired by the blood pressure information acquisition unit is input to the memory unit 13 or the display unit 12 described above as a measurement result.
- 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).
- an external device for example, a PC (Personal Computer) or a printer.
- the output unit for example, a serial communication line or a writing device for various recording media can be used.
- the expansion / contraction operation of the pressurizing pump 16a is controlled by the pressurizing pump drive circuit 17a based on a control signal input from the control unit 11.
- the pressurizing pump 16 a pressurizes the pressure inside the air bladder 34 (hereinafter also referred to as “cuff pressure”) by supplying a fluid such as air to the lumen of the air bladder 34.
- the opening / closing operation of the exhaust valve 16b is controlled by the exhaust valve drive circuit 17b based on a control signal input from the control unit 11.
- the exhaust valve 16b maintains the cuff pressure or reduces the cuff pressure by opening the lumen of the air bag 34 to the outside.
- the pressure sensor 16c inputs an output signal corresponding to the pressure inside the air bladder 34 to the oscillation circuit 17c.
- the oscillation circuit 17c generates a signal having an oscillation frequency corresponding to the signal input from the pressure sensor 16c, and inputs the generated signal to the control unit 11.
- the subject When measuring the blood pressure value, the subject wears the cuff 20A on the upper arm in advance. In this state, the subject operates the operation unit 15 (power switch 15a) provided in the main body 10 to turn on the power source of the sphygmomanometer 1 (step ST1).
- Power from the power supply unit 14 is supplied to the control unit 11 to drive the control unit 11.
- the control unit 11 initializes the memory unit 13 (step ST2).
- the control unit 11 initializes the pressure sensor 16c (step ST3).
- the control unit 11 waits for an instruction to start measurement by the subject.
- the subject operates the operation unit 15 (measurement switch 15b) as an instruction to start measurement (step ST4).
- the control unit 11 closes the exhaust valve 16b and drives the pressure pump 16a. Pressurization of the air bag 34 is started (step ST5).
- the cuff pressure of the air bag 34 increases.
- the cuff pressure of the air bag 34 reaches a predetermined cuff pressure or higher necessary for blood pressure measurement (step ST6).
- the control unit 11 stops the pressurizing pump 16a and opens the closed exhaust valve 16b.
- the air in the air bladder 34 is exhausted, and the decompression of the air bladder 34 is gradually started (step ST7).
- the blood pressure value is measured in the process where the cuff pressure is gradually reduced.
- the sphygmomanometer 1 calculates blood pressure values such as systolic blood pressure values and diastolic blood pressure values by the control unit 11 (step ST8).
- the control unit 11 extracts pulse wave information based on the oscillation frequency obtained from the oscillation circuit 17c in the process of gradually reducing the cuff pressure of the air bladder 34.
- the control unit 11 determines a blood pressure value based on the extracted pulse wave information (step ST9).
- the control unit 11 opens the air bag 34 to completely exhaust the air in the air bag 34 (step ST10).
- the control unit 11 displays the blood pressure value as the measurement result on the display unit 12 (step ST11).
- the control unit 11 stores the blood pressure value in the memory unit 13 and records it as data (step ST12).
- the test subject operates the operation unit 15 (power switch 15a) provided on the main body to turn off the blood pressure monitor 1.
- the operation of the sphygmomanometer 1 ends (step ST13).
- the measurement method described above is a so-called decompression measurement method that detects a pulse wave when the air bag 34 is decompressed.
- the measurement method of the sphygmomanometer 1 is not limited to the decompression measurement method, and a so-called pressurization measurement method that detects a pulse wave when the air bag 34 is pressurized can be employed.
- FIG. 6 and 7 are cross-sectional views showing the state (operation) when the cuff 20A for a sphygmomanometer according to the present embodiment is fastened to the upper arm 70 over time.
- the state shown in FIG. 6 reaches the state shown in FIG. 6 and 7, the air bag 34 is not shown.
- the air bag 34 is actually arranged as shown in FIG.
- upper arm 70 of the subject's left arm is inserted into the annular portion of exterior cover 30.
- the other end 30b of the exterior cover 30 is gripped by the right hand.
- the grasped other end 30b is pulled in the direction indicated by the arrow AR1. Since the second annular ring 38 is provided on the surface 31 positioned on the right arm upper arm side (right side on the paper surface), the other end 30b can be easily pulled by the right hand of the subject.
- the second annular ring 38 is also pulled in the direction indicated by the arrow AR1 by the exterior cover 30 on the other end 30b side.
- a gap H is formed between the upper arm 70 and the annular portion of the exterior cover 30 on the side where the second annular ring 38 is provided.
- the other end 30b of the exterior cover 30 is further pulled in the direction indicated by the arrow AR1 by the right hand.
- the diameter of the annularly formed portion of the exterior cover 30 is gradually reduced.
- the gap H is also gradually reduced.
- the portion of the exterior cover 30 on the side where the second annular ring 38 is provided (substantially the right half of the paper surface of the exterior cover 30) is pulled toward the first annular ring 36 and is in the direction indicated by the arrow A1. Try to rotate (clockwise). A force is applied to the second annular ring 38 to rotate the second annular ring 38 in the direction indicated by the arrow A1 (clockwise direction).
- the second annular ring 38 is also subjected to a force for moving the second annular ring 38 in the direction indicated by the arrow AR1.
- This force acts so that the second annular ring 38 is always located on the rightmost side of the upper arm 70.
- This force counteracts in a direction (counterclockwise direction) indicated by arrow A2 with respect to a force for rotating the second annular ring 38 in the direction indicated by arrow A1 (clockwise direction).
- the second annular ring 38 is subjected to a force for rotating the second annular ring 38 in the clockwise direction and a force acting counterclockwise to this force. These forces cancel each other, and the circumferential position of the second annular ring 38 with respect to the upper arm 70 hardly changes. Therefore, it is possible to reduce the diameter of the portion of the outer cover 30 that is formed in an annular shape, with almost no change in the position in the circumferential direction with respect to the upper arm 70 of the second annular ring 38.
- the second annular ring 38 is provided on the surface 31 of the exterior cover 30.
- the first annular ring 36 is inserted into the insertion hole 38 a of the second annular ring 38, and the other end 30 b of the exterior cover 30 that is folded back at the first annular ring 36 is inserted.
- a portion of the exterior cover 30 where the attachment cover 33a is provided and a portion of the exterior cover 30 that includes the air bag 34 are continuous. Due to the continuation, the circumferential movements of the second annular ring 38 and the air bladder 34 are related (linked).
- the position of the second annular ring 38 with respect to the upper arm 70 hardly changes. Therefore, the position of the air bag 34 with respect to the upper arm 70 hardly changes before and after the exterior cover 30 is fastened to the upper arm 70.
- the cuff 20A and the sphygmomanometer 1 equipped with the cuff 20A it is possible to measure blood pressure information accurately and stably without occurrence of measurement errors due to mounting position shifts and without causing variations in measurement values. Become.
- the hook-and-loop fastener 41 may be located near the second annular ring 38 between the second annular ring 38 and the first annular ring 36. With this configuration, the hook-and-loop fastener 41 is positioned closer to the one end 30 a side of the exterior cover 30 than the second annular ring 38. The hook-and-loop fastener 41 and the hook-and-loop fastener 42 can be easily locked.
- a cuff 20Aa according to a first modification of the first embodiment will be described with reference to FIG.
- the second annular ring 38 may be provided on the surface 31 located on the triceps 72 side (lower side of the drawing).
- the upper arm 70 of the subject's left arm is inserted into the annular portion of the exterior cover 30.
- the other end 30b of the exterior cover 30 is gripped by the right hand. The gripped other end 30b is pulled in the direction indicated by the arrow AR1a.
- the second annular ring 38 is also pulled in the direction indicated by the arrow AR1a by the exterior cover 30 on the other end 30b side.
- the portion of the exterior cover 30 on the side where the second annular ring 38 is provided (substantially the lower half of the exterior cover 30 on the paper surface) is pulled toward the first annular ring 36 and is in the direction indicated by the arrow A1. Try to rotate (clockwise). A force is applied to the second annular ring 38 to rotate the second annular ring 38 in the direction indicated by the arrow A1 (clockwise direction).
- the second annular ring 38 is also subjected to a force for moving the second annular ring 38 in the direction indicated by the arrow AR1a.
- This force acts so that the second annular ring 38 is always positioned closest to the triceps 72 side of the upper arm 70.
- This force counteracts in the direction indicated by the arrow A2 (counterclockwise direction) against the force to rotate the second annular ring 38 in the direction indicated by the arrow A1a (clockwise direction).
- the second annular ring 38 is subjected to a force for rotating the second annular ring 38 in the clockwise direction and a force acting counterclockwise to this force. These forces cancel each other, and the circumferential position of the second annular ring 38 with respect to the upper arm 70 hardly changes. Therefore, it is possible to reduce the diameter of the portion of the outer cover 30 that is formed in an annular shape, with almost no change in the position in the circumferential direction with respect to the upper arm 70 of the second annular ring 38.
- the portion of the exterior cover 30 where the mounting cover 33a is provided and the portion of the exterior cover 30 that includes the air bag 34 are continuous. Before and after the exterior cover 30 is fastened to the upper arm 70, the position of the air bag 34 with respect to the upper arm 70 hardly changes.
- the rotation in the circumferential direction as described at the beginning and the rotation in the opposite direction are not repeated.
- the predetermined tightening state as the cuff 20Aa can be repeatedly reproduced.
- the cuff 20Aa and the sphygmomanometer 1 equipped with the cuff 20Aa it is possible to measure blood pressure information accurately and stably without occurrence of measurement errors due to wearing position deviation and without causing variations in measurement values. Become.
- the cuff 20A includes an exterior cover 30, an air bag 34 (see FIG. 2), a hook-and-loop fastener 41, a hook-and-loop fastener 42, and a first annular ring 36 (first ring). 1 guide member) and a second annular ring 38 (second guide member).
- cuff 20Ab in the second modification of the first embodiment does not have hook-and-loop fasteners 41 and 42, unlike cuff 20A in the first embodiment.
- the cuff 20Ab has a fixing member 50 as a second guide member. The fastening state of the exterior cover 30 is held by the fixing member 50.
- the fixing member 50 includes a support frame 52, a first roller 54, a second roller 56, and predetermined locking means (details will be described later).
- the fixing member 50 is attached on the surface 31 of the exterior cover 30.
- the support frame 52 of the fixing member 50 is attached to the surface 31 of the exterior cover 30.
- the support frame 52 is formed, for example, by pressing both ends of a metal flat plate member.
- the support frame 52 has side walls 52a and 52a at both ends in the longitudinal direction (the direction along the width direction of the cuff 20Ab).
- Each side wall 52a is provided with an oval shaft support hole 52a1.
- Each side wall 52a is further provided with a perfect circular shaft support hole 52b1.
- the first roller 54 is provided so as to extend along the width direction of the cuff 20Ab. Both ends of the first roller 54 are inserted into the respective shaft support holes 52a1. The first roller 54 is rotatably supported by each side wall 52a (each shaft support hole 52a1) of the support frame 52.
- the second roller 56 is provided to extend along the width direction of the cuff 20Ab. Both ends of the second roller 56 are inserted into the respective shaft support holes 52b1. The second roller 56 is rotatably supported by each side wall 52a (each shaft support hole 52b1).
- the other end 30b side of the exterior cover 30 can be inserted into the insertion hole defined between the side walls 52a, 52a of the support frame 52, the first roller 54, and the second roller 56.
- the other end 30b of the exterior cover 30 inserted through the first annular ring 36 (see FIG. 1) is overlapped along the outside (surface 31 side) of the annularly formed portion of the exterior cover 30.
- the other end 30b is inserted between the first roller 54 and the second roller 56, and is drawn outward from the annularly formed portion of the exterior cover 30.
- the exterior cover 30 By pulling the other end 30b of the exterior cover 30 away from the fixing member 50, the exterior cover 30 is fastened to the living body.
- first roller 54 may be configured to be biased toward the second roller 56 as a locking means for maintaining the fastening state of the exterior cover 30 with respect to the living body.
- first roller 54 may be configured to be rotatable only in the direction indicated by the arrow AR54
- second roller 56 may be configured to be rotatable only in the direction indicated by the arrow AR56.
- the fixing member 50 maintains the fastening state of the exterior cover 30 with respect to the living body. According to the cuff 20Ab, it is not necessary to provide a hook-and-loop fastener.
- the rotation in the circumferential direction as described at the beginning and the rotation in the opposite direction are not repeated. Even if the cuff 20Ab is routinely fastened to the upper arm, it is contemplated that the fixing member 50 is repeatedly disposed at substantially the same position in the vicinity of the right hand side of the upper arm. It is contemplated that the air bag 34 is also repeatedly disposed at substantially the same position. The predetermined tightening state as the cuff 20Ab can be repeatedly reproduced.
- the cuff 20Ab and the sphygmomanometer equipped with the cuff 20Ab it is possible to measure blood pressure information accurately and stably without occurrence of measurement errors due to mounting position deviations and without causing variations in measurement values. .
- the cuff 20Ac has a fixing member 50a as a second guide member.
- the fixing member 50 a has a second roller 56.
- the fixing member 50a does not have the first roller 54 (see FIG. 9).
- the other end 30b of the exterior cover 30 inserted through the first annular ring 36 is overlapped along the outside (surface 31 side) of the annularly formed portion of the exterior cover 30.
- the other end 30b is inserted between the second roller 56 and the support frame 52, and is drawn outward from the annularly formed portion of the exterior cover 30.
- the outer cover 30 is fastened to the living body by pulling the other end 30b of the outer cover 30 away from the fixing member 50a.
- the second roller 56 may be configured to be rotatable only in the direction indicated by the arrow AR56.
- the cuff 20Ac may include a hook-and-loop fastener (not shown) similar to that of the first embodiment described above as a locking means.
- FIGS. 11 and 12 A blood pressure monitor according to the second embodiment will be described with reference to FIGS. 11 and 12.
- the cuff 20B further includes a third annular ring 39.
- the air bag 34 is not described.
- the air bag 34 is actually enclosed in the exterior cover 30 as shown in FIG. The same applies to FIGS. 14, 16 and 18 described later.
- the third annular ring 39 is attached on the surface 31 of the exterior cover 30.
- the third annular ring 39 is configured in substantially the same manner as the second annular ring 38.
- the third annular ring 39 has an insertion hole through which a portion on the other end 30b side of the exterior cover 30 and the attachment cover 33b can be inserted.
- the third annular ring 39 may be formed of, for example, a metal member that hardly causes friction with the exterior cover 30.
- the mounting cover 33b is sewn onto the surface 31 of the exterior cover 30 in a state of being inserted into the insertion hole of the third annular ring 39.
- the third annular ring 39 is attached on the surface 31 of the exterior cover 30 by being sandwiched between the attachment cover 33 b and the exterior cover 30.
- the third annular ring 39 is located between the first annular ring 36 and the second annular ring 38 in the longitudinal direction when the exterior cover 30 is deployed.
- the other end 30b of the exterior cover 30 inserted and folded through the first annular ring 36 is along the outside (surface 31 side) of the annularly formed portion of the exterior cover 30. Superimposed. The other end 30 b is inserted into the insertion hole 38 a of the second annular ring 38.
- the other end 30b of the exterior cover 30 inserted into the insertion hole 38a of the second annular ring 38 is overlapped along the outer side (surface 31 side) of the annularly formed portion of the exterior cover 30.
- the other end 30b is inserted through the insertion hole of the third annular ring 39 and is drawn outward from the annularly formed portion of the exterior cover 30.
- the upper arm 70 of the subject's left arm is inserted into the annular portion of the exterior cover 30.
- the other end 30b of the exterior cover 30 is gripped by the right hand (not shown). The grasped other end 30b is pulled in the direction indicated by the arrow AR1.
- the third annular ring 39 is also pulled in the direction indicated by the arrow AR1 by the exterior cover 30 on the other end 30b side.
- the other end 30b of the exterior cover 30 is further pulled in the direction indicated by the arrow AR1 by the right hand.
- the diameter of the annularly formed portion of the exterior cover 30 is gradually reduced.
- a portion of the exterior cover 30 on the side where the second annular ring 38 and the third annular ring 39 are provided is pulled toward the first annular ring 36, and the arrow A1. It tries to rotate in the direction shown in (clockwise direction).
- a force is applied to the third annular ring 39 to rotate the third annular ring 39 in the direction indicated by the arrow A1 (clockwise direction).
- the third annular ring 39 is also subjected to a force for moving the third annular ring 39 in the direction indicated by the arrow AR1.
- This force acts so that the third annular ring 39 is always located on the rightmost side of the upper arm 70.
- This force counteracts in a direction (counterclockwise direction) indicated by arrow A2 with respect to a force to rotate the third annular ring 39 in the direction indicated by arrow A1 (clockwise direction).
- the third annular ring 39 is subjected to a force for rotating the third annular ring 39 in the clockwise direction and a force acting counterclockwise in response to this force. These forces cancel each other, and the circumferential position of the third annular ring 39 with respect to the upper arm 70 hardly changes. Therefore, it is possible to reduce the diameter of the portion of the outer cover 30 that is formed in an annular shape without changing the circumferential position of the third annular ring 39 with respect to the upper arm 70.
- the third annular ring 39 is located between the first annular ring 36 and the second annular ring 38 in the longitudinal direction.
- the portion of the exterior cover 30 where the attachment cover 33b is provided and the portion of the exterior cover 30 that includes the air bag 34 are continuous. Due to the continuation, the circumferential movements of the third annular ring 39 and the air bladder 34 are related (linked).
- the position of the third annular ring 39 with respect to the upper arm 70 hardly changes. Therefore, the position of the air bag 34 with respect to the upper arm 70 hardly changes before and after the exterior cover 30 is fastened to the upper arm 70.
- the cuff 20B and the sphygmomanometer equipped with the cuff 20B it is possible to measure blood pressure information accurately and stably without occurrence of measurement errors due to mounting position shifts and without variations in measurement values. .
- the difference between the second embodiment and this modification is that the other end 30 b inserted through the third annular ring 39 is folded back at the third annular ring 39 and then the second annular ring 39. It is inserted through the ring 38 again. The other end 30b is inserted through the insertion hole of the second annular ring 38 and is drawn outward from the annularly formed portion of the exterior cover 30.
- the third annular ring 39 has a first annular ring 36 and a second annular ring 38 in the longitudinal direction in a state where the exterior cover 30 is deployed, like the cuff 20B in the second embodiment. Is located between.
- the upper arm 70 of the subject's left arm is inserted into the annularly formed portion of the exterior cover 30.
- the other end 30b of the exterior cover 30 is gripped by the right hand (not shown). The grasped other end 30b is pulled in the direction indicated by the arrow AR1.
- the second annular ring 38 is also pulled in the direction indicated by the arrow AR1 by the exterior cover 30 on the other end 30b side.
- the other end 30b of the exterior cover 30 is further pulled in the direction indicated by the arrow AR1 by the right hand.
- the diameter of the annularly formed portion of the exterior cover 30 is gradually reduced.
- a portion of the exterior cover 30 on the side where the second annular ring 38 and the third annular ring 39 are provided is pulled toward the first annular ring 36, and the arrow A1. It tries to rotate in the direction shown in (clockwise direction).
- the second annular ring 38 is also subjected to a force for moving the second annular ring 38 in the direction indicated by the arrow AR1.
- This force acts so that the second annular ring 38 is always located on the rightmost side of the upper arm 70.
- This force acts counteract to the force that attempts to rotate the second annular ring 38 and the third annular ring 39 in the direction indicated by the arrow A1 (clockwise direction).
- the second annular ring 38 and the third annular ring 39 are subjected to a force to rotate in the clockwise direction and a force acting counterclockwise in response to this force. These forces cancel each other, and the circumferential position of the second annular ring 38 and the third annular ring 39 with respect to the upper arm 70 hardly changes.
- the first annular ring 36 is gradually drawn in the direction indicated by the arrow A2.
- the diameter of the annularly formed portion of the exterior cover 30 is gradually reduced. It is possible to reduce the diameter of the annularly formed portion of the exterior cover 30 without changing the circumferential position of the second annular ring 38 and the third annular ring 39 with respect to the upper arm 70.
- the other end 30 b inserted through the third annular ring 39 is folded back at the third annular ring 39 and then inserted through the second annular ring 38 again.
- the exterior cover 30 is inserted twice with respect to the second annular ring 38 and is folded back at the third annular ring 39.
- a so-called curler-like rigid member 40 may be provided between the second annular ring 38 and the third annular ring 39 in the longitudinal direction in a state where the exterior cover 30 is unfolded.
- the rigid member 40 is fixed to the exterior cover 30 located between the second annular ring 38 and the third annular ring 39.
- the rigid member 40 may be covered with a fixed cover (not shown) or the like.
- the rigid member 40 keeps the distance between the second annular ring 38 and the third annular ring 39 constant.
- the third annular ring 39 is located between the second annular ring 38 and the other end 30 b of the exterior cover 30 in the longitudinal direction when the exterior cover 30 is deployed.
- the other end portion 30 b of the exterior cover 30 inserted and folded through the first annular ring 36 is overlapped along the outside (surface 31 side) of the annularly formed portion of the exterior cover 30. Adapted. The other end 30 b is inserted through the insertion hole of the third annular ring 39.
- the other end 30b of the exterior cover 30 inserted through the insertion hole of the third annular ring 39 is overlapped along the outside (surface 31 side) of the annularly formed portion of the exterior cover 30.
- the other end 30b is inserted into the insertion hole 38a of the second annular ring 38 and is drawn outward from the annularly formed portion of the exterior cover 30.
- the upper arm 70 of the subject's left arm is inserted into the annularly formed portion of the exterior cover 30.
- the other end 30b of the exterior cover 30 is gripped by the right hand (not shown). The grasped other end 30b is pulled in the direction indicated by the arrow AR1.
- the second annular ring 38 is also pulled in the direction indicated by the arrow AR1 by the exterior cover 30 on the other end 30b side.
- the other end 30b of the exterior cover 30 is further pulled in the direction indicated by the arrow AR1 by the right hand.
- the diameter of the annularly formed portion of the exterior cover 30 is gradually reduced.
- a portion of the exterior cover 30 on the side where the second annular ring 38 and the third annular ring 39 are provided is pulled toward the first annular ring 36, and the arrow A1. It tries to rotate in the direction shown in (clockwise direction). A force is applied to the second annular ring 38 to rotate the second annular ring 38 in the direction indicated by the arrow A1 (clockwise direction).
- the second annular ring 38 is also subjected to a force for moving the second annular ring 38 in the direction indicated by the arrow AR1.
- This force acts so that the second annular ring 38 is always located on the rightmost side of the upper arm 70.
- This force counteracts in a direction (counterclockwise direction) indicated by arrow A2 with respect to a force for rotating the second annular ring 38 in the direction indicated by arrow A1 (clockwise direction).
- the second annular ring 38 is subjected to a force for rotating the second annular ring 38 in the clockwise direction and a force acting counteracting to this force. These forces cancel each other, and the circumferential position of the second annular ring 38 with respect to the upper arm 70 hardly changes. Therefore, it is possible to reduce the diameter of the portion of the outer cover 30 that is formed in an annular shape, with almost no change in the position in the circumferential direction with respect to the upper arm 70 of the second annular ring 38.
- the third annular ring 39 is located between the second annular ring 38 and the other end 30b of the exterior cover 30 in the longitudinal direction in a state where the exterior cover 30 is deployed.
- a portion of the exterior cover 30 where the attachment cover 33a is provided and a portion of the exterior cover 30 that includes the air bag 34 are continuous. Due to the continuation, the circumferential movements of the second annular ring 38 and the air bladder 34 are related (linked).
- the position of the second annular ring 38 with respect to the upper arm 70 hardly changes. Therefore, the position of the air bag 34 with respect to the upper arm 70 hardly changes before and after the exterior cover 30 is fastened to the upper arm 70.
- the rotation in the circumferential direction as described at the beginning and the rotation in the direction opposite to this rotation are not repeated before and after the cuff 20C for the blood pressure monitor is fastened. Even if the cuff 20C is routinely fastened to the upper arm 70, it is contemplated that the second annular ring 38 is repeatedly disposed at substantially the same position in the vicinity of the right hand side of the upper arm 70.
- the air bag 34 is also intended to be repeatedly arranged at substantially the same position, and the predetermined tightening state as the cuff 20C can be repeatedly reproduced.
- the cuff 20C and the sphygmomanometer equipped with the cuff 20C it is possible to measure blood pressure information accurately and stably without occurrence of measurement errors due to mounting position shifts and without causing variations in measurement values. .
- FIGS. 17 and 18 A blood pressure monitor according to the fourth embodiment will be described with reference to FIGS. 17 and 18. Here, only differences from the second embodiment will be described. The difference between the second embodiment and the present embodiment is the position where the third annular ring 39 is attached.
- the third annular ring 39 is provided on the back surface 32 of the exterior cover 30.
- the third annular ring 39 is located between the second annular ring 38 and the other end 30 b of the exterior cover 30 in the longitudinal direction in a state where the exterior cover 30 is expanded.
- the other end 30 b of the exterior cover 30 inserted and folded through the first annular ring 36 is overlapped along the outer side (surface 31 side) of the annularly formed portion of the exterior cover 30. Adapted. The other end 30 b is inserted and folded back through the insertion hole 38 a of the second annular ring 38.
- the other end portion 30b of the exterior cover 30 inserted and folded through the second annular ring 38 is overlapped along the outer side (the back surface 32 side) of the annularly formed portion of the exterior cover 30.
- the other end 30b is inserted through the insertion hole of the third annular ring 39 and is drawn outward from the annularly formed portion of the exterior cover 30.
- the upper arm 70 of the subject's left arm is inserted into the annular portion of the exterior cover 30.
- the other end 30b of the exterior cover 30 is gripped by the right hand (not shown). The grasped other end 30b is pulled in the direction indicated by the arrow AR1.
- the third annular ring 39 is also pulled in the direction indicated by the arrow AR1 by the exterior cover 30 on the other end 30b side.
- the portion of the exterior cover 30 where the third annular ring 39 is provided is pulled toward the second annular ring 38 and rotates in the direction indicated by the arrow A2 (counterclockwise direction).
- a portion of the exterior cover 30 where the second annular ring 38 is provided is pulled toward the third annular ring 39 and rotates in the direction indicated by the arrow A1 (clockwise direction).
- the other end 30b of the outer cover 30 is further pulled in the direction indicated by the arrow AR1 by the right hand.
- the diameter of the portion of the outer cover 30 that is formed in an annular shape gradually decreases.
- the second annular ring 38 and the third annular ring 39 approach.
- the second annular ring 38 and the third annular ring 39 are adjacent in the circumferential direction and are substantially integrated.
- the second annular ring 38 and the third annular ring 39 are substantially integrated with each other by the exterior cover 30 on the other end 30b side. Pulled in the direction indicated by AR1.
- the portion of the exterior cover 30 on the side where the second annular ring 38 and the third annular ring 39 are provided is pulled toward the first annular ring 36 side.
- a force is applied to the second annular ring 38 and the third annular ring 39 to rotate the second annular ring 38 and the third annular ring 39 in the direction indicated by the arrow A1 (clockwise direction).
- the second annular ring 38 and the third annular ring 39 are also subjected to a force for moving the second annular ring 38 and the third annular ring 39 in the direction indicated by the arrow AR1.
- This force acts so that the second annular ring 38 and the third annular ring 39 are always located on the rightmost side of the upper arm 70.
- This force counteracts the direction indicated by the arrow A2 (counterclockwise direction) against the force to rotate the second annular ring 38 and the third annular ring 39 in the direction indicated by the arrow A1 (clockwise direction). ) Work.
- the second annular ring 38 and the third annular ring 39 have a force to rotate the second annular ring 38 and the third annular ring 39 in the clockwise direction, and a force acting counteracting to this force. And are working. These forces cancel each other, and the circumferential position of the second annular ring 38 and the third annular ring 39 with respect to the upper arm 70 hardly changes.
- the second annular ring 38 is provided on the surface 31 of the exterior cover 30.
- a portion of the exterior cover 30 where the attachment cover 33a is provided and a portion of the exterior cover 30 that includes the air bag 34 are continuous. Due to the continuation, the circumferential movements of the second annular ring 38 and the air bladder 34 are related (linked).
- the second annular ring 38 moves in the clockwise direction (the direction indicated by the arrow A1) by a predetermined distance until it is adjacent to the third annular ring 39.
- the position of the air bag 34 relative to the upper arm 70 also moves clockwise by a predetermined distance (direction indicated by arrow A1).
- the air bag 34 moves in the clockwise direction by a predetermined distance, but in the fastening process, the circumferential rotation as described at the beginning, and this rotation Is not repeated with rotation in the opposite direction. Even if the cuff 20D is fastened to the upper arm 70 on a daily basis, it is contemplated that the third annular ring 39 is repeatedly arranged at substantially the same position on the rightmost side of the upper arm 70.
- the air bag 34 moves clockwise by a predetermined distance, it is contemplated that the position of the air bag 34 is repeatedly arranged at substantially the same position, and the predetermined tightening state as the cuff 20D is repeated. Can be reproduced.
- the cuff 20D and the sphygmomanometer equipped with the cuff 20D it is possible to measure blood pressure information accurately and stably without occurrence of measurement errors due to mounting position shifts and without variations in measurement values. .
- FIG. 19 to 21 are cross-sectional views showing a state (operation) when the cuff 100A in the comparative example is fastened to the upper arm 70 over time.
- the state shown in FIG. 19 reaches the state shown in FIG. 21 through the state shown in FIG.
- the configuration of the cuff 100A in this comparative example is substantially the same as the configuration disclosed in Japanese Utility Model Laid-Open No. 5-39504 (Patent Document 1).
- upper arm 70 of the subject's left arm is inserted into the annular portion of exterior cover 30.
- the other end 30b of the exterior cover 30 is gripped by the right hand.
- the other end 30b of the exterior cover 30 is pulled by the right hand in the direction indicated by the arrow AR2a.
- the first annular ring 36 is pulled in the direction indicated by the arrow AR2a by the exterior cover 30 on the other end 30b side. On the side where the first annular ring 36 is provided, a gap H is formed between the upper arm 70 and the exterior cover 30.
- the other end 30b of the exterior cover 30 is further pulled in the direction indicated by the arrow AR2a by the right hand.
- the diameter of the portion of the outer cover 30 formed in an annular shape is gradually reduced, and the gap H is also reduced.
- the frictional force between the outer cover 30 and the upper arm 70 is large, and the outer cover 30 can hardly slide with respect to the surface of the upper arm 70. Due to the frictional force, the direction in which the other end 30b of the outer cover 30 is pulled by the right hand rotates in the direction indicated by the arrow A3.
- the force acting in the direction indicated by arrow AR2a changes in the direction indicated by arrow AR2b (see FIG. 20).
- the exterior cover 30 also rotates in the direction indicated by the arrow AR2b (counterclockwise direction).
- the exterior cover 30 may be rotated in the clockwise direction to return the exterior cover 30 rotated in the counterclockwise direction.
- the other end 30b of the exterior cover 30 is further pulled in the direction indicated by the arrow AR2b by the right hand.
- the diameter of the portion of the outer cover 30 formed in an annular shape is gradually reduced, and the gap H is also reduced.
- the frictional force between the outer cover 30 and the upper arm 70 is large, and the outer cover 30 can hardly slide with respect to the surface of the upper arm 70. Due to the frictional force, the direction in which the other end 30b of the outer cover 30 is pulled by the right hand rotates in the direction indicated by the arrow A4.
- the force acting in the direction indicated by arrow AR2b (see FIG. 20) further changes in the direction indicated by arrow AR2c (see FIG. 21).
- the outer cover 30 rotates in the direction indicated by the arrow A4 (see FIG. 20: counterclockwise direction).
- the exterior cover 30 may be further rotated in the clockwise direction in order to return the exterior cover 30 rotated in the counterclockwise direction.
- the cuff 100A in this comparative example is attached to the measurement site by repeating the rotation in the circumferential direction and the rotation opposite to the circumferential direction a plurality of times. According to the cuff 100A, when the blood pressure value is measured daily, for example, it is difficult to reproduce a predetermined tightening state as the cuff. As a result, measurement values obtained by daily measurement vary, making it difficult to measure blood pressure information accurately and stably.
- a predetermined tightening state can be repeatedly reproduced. It is possible to measure blood pressure information accurately and stably without occurrence of measurement errors and without variation in measured values.
- Embodiments 1 to 4 can also be applied to a so-called wrist-type sphygmomanometer in which a cuff is attached to the wrist when measuring a blood pressure value, and a sphygmomanometer cuff provided therein.
- the configurations in the first to fourth embodiments can be applied to a so-called ankle-type sphygmomanometer in which a cuff is attached to the ankle when measuring a blood pressure value, a sphygmomanometer cuff provided in the so-called ankle-type sphygmomanometer, and the like. .
- the configurations in the first to fourth embodiments exemplify cases where the present invention is applied to a sphygmomanometer capable of measuring blood pressure values such as systolic blood pressure values and diastolic blood pressure values, and a sphygmomanometer cuff provided in the sphygmomanometer.
- a sphygmomanometer capable of measuring blood pressure values such as systolic blood pressure values and diastolic blood pressure values
- a sphygmomanometer cuff provided in the sphygmomanometer.
- the configurations in the first to fourth embodiments include blood pressure information other than blood pressure values such as systolic blood pressure values and diastolic blood pressure values (for example, mean blood pressure value, pulse wave, pulse, AI (Augmentation Index) value) Etc.) and a cuff for a blood pressure information measuring device provided in the blood pressure information measuring device.
- blood pressure information other than blood pressure values such as systolic blood pressure values and diastolic blood pressure values (for example, mean blood pressure value, pulse wave, pulse, AI (Augmentation Index) value) Etc.) and a cuff for a blood pressure information measuring device provided in the blood pressure information measuring device.
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Abstract
Description
図1~図7を参照して、本実施の形態における血圧計1について説明する。
図1を参照して、血圧計1は、本体10と、カフ20Aと、エア管80とを備えている。本体10は箱状の筐体である。本体10の上面には、表示部12および操作部15が設けられている。本体10は、測定時においてテーブル等に載置されて使用される。
図4を参照して、血圧計1の機能ブロックについて説明する。血圧計1の本体10は、上述した表示部12および操作部15に加え、制御部11と、メモリ部13と、電源部14と、加圧ポンプ16aと、排気弁16bと、圧力センサ16cと、加圧ポンプ駆動回路17aと、排気弁駆動回路17bと、発振回路17cとを備えている。
図4および図5を参照して、血圧計1の処理の流れについて説明する。血圧計1の処理の流れに従うプログラムは、メモリ部13に予め記憶されている。制御部11がメモリ部13からこのプログラムを読み出して実行することにより、血圧計1の処理が実行される。
図6および図7を参照して、本実施の形態における作用および効果について説明する。図6および図7は、本実施の形態における血圧計用のカフ20Aを、上腕70に締結するときの様子(動作)を経時的に示した断面図である。図6に示す状態は、図7に示す状態に至る。図6および図7においては、空気袋34を記載していない。空気袋34は、実際には、図2に示すように配置されている。
図8を参照して、実施の形態1の第1変形例に係るカフ20Aaについて説明する。カフ20Aaが上腕に固定されたとき、第2環状リング38は上腕三頭筋72側(紙面下方)に位置する表面31上に設けられていてもよい。
図1を参照して、実施の形態1においては、カフ20Aは、外装カバー30と、空気袋34(図2参照)と、面ファスナー41と、面ファスナー42と、第1環状リング36(第1ガイド部材)と、第2環状リング38(第2ガイド部材)とを有している。
図10を参照して、実施の形態1の第3変形例におけるカフ20Acについて説明する。ここでは、カフ20Acと、実施の形態1の第2変形例におけるカフ20Abとの相違点について説明する。
図11および図12を参照して、実施の形態2における血圧計について説明する。ここでは、実施の形態1との相違点についてのみ説明する。実施の形態1と本実施の形態との相違点は、カフ20Bが第3環状リング39をさらに備えていることである。図12においては、空気袋34を記載していない。空気袋34は、実際には図11に示すように外装カバー30に内包されている。後述する図14,図16および図18においても同様である。
カフ20Bにおいては、外装カバー30の環状に形成された部分にたとえば被験者の左腕の上腕70が挿入される。上腕70が挿入された後、外装カバー30の他端部30bは右手(不図示)によって把持される。把持された他端部30bは、矢印AR1に示す方向に引っ張られる。
図13および図14を参照して、実施の形態2の変形例における血圧計について説明する。ここでは、実施の形態2との相違点について説明する。
本変形例のカフ20Baにおいては、外装カバー30の環状に形成された部分にたとえば被験者の左腕の上腕70が挿入される。上腕が挿入された後、外装カバー30の他端部30bは右手(不図示)によって把持される。把持された他端部30bは、矢印AR1に示す方向に引っ張られる。
図15および図16を参照して、実施の形態3における血圧計について説明する。ここでは、実施の形態2との相違点についてのみ説明する。実施の形態2と本実施の形態との相違点は、第3環状リング39が取付けられている位置である。
カフ20Cにおいては、外装カバー30の環状に形成された部分にたとえば被験者の左腕の上腕70が挿入される。上腕70が挿入された後、外装カバー30の他端部30bは右手(不図示)によって把持される。把持された他端部30bは、矢印AR1に示す方向に引っ張られる。
図17および図18を参照して、実施の形態4における血圧計について説明する。ここでは、実施の形態2との相違点についてのみ説明する。実施の形態2と本実施の形態との相違点は、第3環状リング39が取付けられている位置である。
カフ20Dにおいては、外装カバー30の環状に形成された部分にたとえば被験者の左腕の上腕70が挿入される。上腕70が挿入された後、外装カバー30の他端部30bは右手(不図示)によって把持される。把持された他端部30bは、矢印AR1に示す方向に引っ張られる。
図19~図21を参照して、比較例におけるカフ100Aを上腕70に締結するときの様子について説明する。比較例におけるカフ100Aは、上述の実施の形態1~実施の形態4とは異なり、ガイド部材としては第1環状リング36のみを有している。図19~図21においては、空気袋34を記載していない。
Claims (10)
- 生体を圧迫するための流体袋(34)と、
第1主面(31)と、前記生体に対して環状に巻き付けられることにより前記生体と対向する第2主面(32)とを有し、前記流体袋(34)を一端部(30a)側に内包する帯状の外装カバー(30)と、
前記流体袋(34)が設けられている位置よりも前記外装カバー(30)の前記一端部(30a)側に設けられ、前記外装カバー(30)の他端部(30b)が挿通して折り返されるために環状に形成された部分を有する第1ガイド部材(36)と、
前記外装カバー(30)の前記第1主面(31)上に設けられ、前記第1ガイド部材(36)を挿通した前記外装カバー(30)の前記他端部(30b)を挿通するために環状に形成された部分を有する第2ガイド部材(38)と、を備える、
血圧情報測定装置用カフ。 - 前記外装カバー(30)は、前記生体内部の動脈との距離が最も短くなる前記生体の表面の部分(70a)と、前記流体袋(34)とが対向するように配置された状態で、前記生体に対して固定される、
請求項1に記載の血圧情報測定装置用カフ。 - 前記生体は上腕であり、
前記第2ガイド部材(38)は、当該血圧情報測定装置用カフが前記上腕に固定された状態で上腕三頭筋側に位置する前記第1主面(31)上に設けられる、
請求項1に記載の血圧情報測定装置用カフ。 - 前記生体は一方の上腕であり、
前記第2ガイド部材(38)は、当該血圧情報測定装置用カフが前記上腕に固定された状態で他方の上腕側に位置する前記第1主面(31)上に設けられる、
請求項1に記載の血圧情報測定装置用カフ。 - 前記第1主面(31)上に設けられる係止部材(41)をさらに備え、
前記係止部材(41)は、前記外装カバー(30)を展開した状態における長手方向において、前記第2ガイド部材(38)と前記第1ガイド部材(36)との間の、前記第2ガイド部材(38)寄りに位置する、
請求項1に記載の血圧情報測定装置用カフ。 - 前記第1主面(31)上に設けられ、前記外装カバー(30)を展開した状態における長手方向において前記第1ガイド部材(36)と前記第2ガイド部材(38)との間に位置する第3ガイド部材(39)をさらに備え、
前記第2ガイド部材(38)に挿通した前記他端部(30b)は、前記第3ガイド部材(39)に挿通される、
請求項1に記載の血圧情報測定装置用カフ。 - 前記第3ガイド部材(39)に挿通された前記他端部(30b)は、前記第3ガイド部材(39)において折り返された後、前記第2ガイド部材(38)に再び挿通される、
請求項6に記載の血圧情報測定装置用カフ。 - 前記第1主面(31)上に設けられ、前記外装カバー(30)を展開した状態における長手方向において前記第2ガイド部材(38)と前記他端部(30b)との間に位置する第3ガイド部材(39)をさらに備え、
前記第1ガイド部材(36)に挿通して折り返された前記他端部(30b)は、前記第3ガイド部材(39)に挿通された後、前記第2ガイド部材(38)に挿通される、
請求項1に記載の血圧情報測定装置用カフ。 - 前記第2主面(32)上に設けられ、前記外装カバー(30)を展開した状態における長手方向において前記第2ガイド部材(38)と前記他端部(30b)との間に位置する第3ガイド部材(39)をさらに備え、
前記第2ガイド部材(38)に挿通した前記他端部(30b)は、前記第2ガイド部材(38)において折り返された後、前記第3ガイド部材(39)に挿通される、
請求項1に記載の血圧情報測定装置用カフ。 - 請求項1に記載の血圧情報測定装置用カフ(20A)と、
前記流体袋を膨縮させる膨縮機構(16a,16b)と、
血圧情報を取得する血圧情報取得部(11)と、を備えた、
血圧情報測定装置。
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