KR101854639B1 - Wrist wearable blood pressure monitor - Google Patents

Abstract

The present invention discloses a wrist blood pressure monitor capable of being worn on the wrist and capable of automatic tightening. The wrist blood pressure monitor according to the present invention includes: a wrist strap for wearing a wrist; A sensor provided on the wrist strap for measuring blood pressure; And a strap tightener for selectively tightening the wrist strap so that the circumferential length of the wrist blood pressure meter is reduced. Additionally, the strap tightener may loosen the wrist strap so that the circumferential length of the wrist blood pressure monitor is increased.
According to the present invention, since the blood pressure can be conveniently measured every time the user needs to measure blood pressure and the wrist adhesion is excellent, the accuracy of blood pressure measurement can be enhanced, the pumping device for filling the air bag can be omitted, It is very easy and convenient to measure the blood pressure.

Description

{WRIST WEARABLE BLOOD PRESSURE MONITOR}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wrist blood pressure monitor for measuring blood pressure by being worn on a wrist, and more particularly, to a wrist blood pressure monitor capable of being automatically tightened for pressing a wrist.

Generally, the blood pressure is measured as the blood pressure on the wall of the blood vessel, and the heart repeats shrinkage and relaxation about 60 to 80 times per minute. When the heart contracts and pushes out the blood, the pressure on the blood vessel is called 'contracting blood pressure' and is called 'hypertension' because it is the highest. In addition, when the heart relaxes and receives blood, the pressure of the blood pressure is called 'relaxed blood pressure' and the lowest is called 'the lowest blood pressure'.

The normal blood pressure of a normal person is 120 mmHg in shrinking blood pressure and 80 mmHg in relaxed blood pressure. More than 1 out of 4 adults in Korea are hypertensive, and this ratio is increasing rapidly after age 40, and some patients are classified as hypotension.

The problem of hypertension is that it may cause other complications that may pose a life threatening condition such as eye disease, kidney disease, arterial disease, brain disease, heart disease if left without proper management of hypertension. Therefore, in the case of the above-mentioned complication or the complication, continuous measurement and management of the blood pressure should be performed.

BACKGROUND ART [0002] Various kinds of blood pressure measuring devices have been developed as interest in health related diseases and geriatric diseases such as hypertension has increased.

The blood pressure measurement method includes a Korotkoff sounds method, an oscillometric method, and a tonometric method.

The stethoscope method is a typical pressure measurement method. In the process of decompressing the blood flow by applying sufficient pressure to the body part passing through the arterial blood, the pressure at the moment when the pulse sound is heard for the first time is measured by systolic pressure And the pressure at the moment when the pulsation disappears is measured by diastolic pressure.

The oscillometric method and the tonometric method are applied to a digitized blood pressure measuring device.

The oscillometric method is a method in which the body part through which the arterial blood passes is decompressed at a constant speed so as to block the arterial blood flow as in the stethoscopic method or a pulse wave generated during the pressure step- And measures systolic blood pressure and diastolic blood pressure.

Here, the pressure at the time when the amplitude of the pulse wave is maximum can be measured by the systolic blood pressure or the diastolic blood pressure, and the pressure when the rate of change of the pulse wave amplitude is rapidly changed is measured by the systolic blood pressure or the diastolic blood pressure You may.

In the process of reducing pressure at a constant rate after pressurization, the systolic blood pressure is measured ahead of the moment when the amplitude of the pulse wave is maximum, and the diastolic blood pressure is measured later than the moment when the amplitude of the pulse wave is maximum. On the contrary, in the process of increasing the blood pressure at a constant speed, the systolic blood pressure is measured later than the moment when the amplitude of the pulse wave is the maximum, and the diastolic blood pressure is measured ahead of the moment when the amplitude of the pulse wave is maximum.

Next, in the tonometric method, a constant pressure of a magnitude not blocking the blood flow of the artery is applied to the body part, and the blood pressure can be continuously measured using the size and shape of the pulse wave generated at this time.

As described above, the blood pressure monitor for measuring the blood pressure is the most basic medical equipment for measuring the blood pressure which is the basis of the health index. It is almost indispensable not only in general medical clinics but also for home blood pressure measurement It is in use.

However, in the case of a conventional blood pressure monitor, when the blood pressure is mostly measured, the blood pressure is measured by winding the blood pressure meter on the upper arm (upper arm or upper arm, part from the shoulder to the elbow) It is not easy to easily measure the blood pressure when desired.

For example, in the case of a blood pressure monitor of the conventional oscillometric system, a sphygmomanometer main body and a pressure cuff, a tube plug, and an air hose are required for winding and pressing on the wrist or forearm. Therefore, the configuration is complicated and bulky, , The air hose must be fitted downward, or the cuff should be worn 1 ~ 2cm above the elbow in case of forearm.

Particularly, since blood pressure varies depending on the body characteristics of the subject, patients having complications in the body need to immediately measure the blood pressure every time the subject feels abnormality in the body and / or the body. The mercury sphygmomanometer and the electronic blood pressure monitor Thereby providing inconvenience to the patients due to the following problems.

First, the mercury sphygmomanometer and the electronic sphygmomanometer use a cuff requiring air injection. However, the cuff has a bulky size, so that it is troublesome for a user to wear it in real time.

In addition, since the mercury sphygmomanometer using the pneumatic cuff is often excessively bulky and heavy for a patient whose blood pressure is frequently measured, it is inconvenient and inconvenient for the subject (patient) to carry around, and each time the blood pressure is measured, It is troublesome to detach and attach the blood pressure monitor.

Although there is a pneumatic electronic blood pressure monitor having the same accuracy as the conventional blood pressure monitor described above, when the blood pressure is measured periodically while the patient continues to carry it, since the electric pump and the infusion cuff are used, There is a problem that the behavior of the patient becomes uncomfortable.

In addition, there are non-pressure type electronic blood pressure monitors that measure blood pressure based on the pulse of the wrist or the fingertip and various parameters. However, since it is difficult to accurately specify the parameters and provide general purpose, the blood pressure is measured periodically It is difficult to apply to patients with

Meanwhile, in recent years, a blood pressure monitor capable of measuring blood pressure by being worn on a wrist like a wristwatch has been developed under the names of a wrist blood pressure monitor, a wrist blood pressure monitor or a wristwatch blood pressure monitor.

However, although the conventional wrist blood pressure monitor is simply called a wrist watch because it measures blood pressure on the wrist, it is structurally complicated due to mechanical / electronic pumping device or air pump for wrist pressurization, And the manufacturing cost is increased. In addition, the conventional wrist blood pressure monitor needs to inject air into the air bag for wrist compression, i.e., the air bag every time the blood pressure is measured so that the portion where the radial artery of the wrist passes can be sufficiently pressed, The accuracy of the measurement is lowered, and there is a problem in terms of operation and mechanism such as the gradual discharge of air by applying an exhaust valve.

Korean Patent Publication No. 10-2009-0046279 (Published Date; May 11, 2009) Korean Patent Publication No. 10-2002-0061226 (published date: July 24, 2002) Japanese Utility Model Utility Model Publication No. 6-11701 (published date: February 15, 1994)

It is an object of the present invention to provide a wrist blood pressure monitor capable of automatic tightening for wrist compression, improved wrist adhesion, and capable of automatically releasing the tightening force.

One aspect of the present invention for solving the above-mentioned object is a wrist blood pressure monitor which can be worn on a wrist, comprising: a wrist strap for wearing a wrist; A sensor provided on the wrist strap for measuring blood pressure; And a strap tightener for selectively tightening the wrist strap so that the circumferential length of the wrist blood pressure meter is reduced.

The wrist strap comprising: A strap base for holding the wrist, and an air bag provided on the strap base for pressing the wrist.

In an embodiment of the present invention, the airbag is a structure in which the infusion of air is prevented, but the airbag is not limited to the airtight type.

The strap tightener comprising: A strap connector movably provided on one side of the wrist strap so that the wrist strap forms a closed loop, the strap connector connecting one side of the wrist strap to the other side of the wrist strap, And a retractor provided at one side of the wrist strap so as to selectively pull the strap connector. The strap connector and the retractor may be connected to each other so as to be capable of interrupting (continuing and breaking).

The retractor comprising: A pull rod connected to the strap connector, and an actuator for actuating the pull rod to move the strap connector along the wrist strap.

Wherein the pull rod is a screw bar that is rotated by the actuator and has a screw thread formed on the outer circumferential surface and is rotatably inserted into the strap connector; The strap connector moves along the pull rod.

The strap connector is selectively engaged with the pull rod to be pulled by the pull.

More specifically, the strap connector comprises: A connector body provided at one side of the wrist strap and connecting one side of the wrist strap to the other side of the wrist strap, a rod hole through which the pull rod is inserted and being movable along the pull rod, And a rod interlocking member movably provided in the connector body for selectively interlocking with the thread of the pull rod for interrupting the connector and the pull rod.

The connector body may include an electromagnet for moving the rod intermittent member such that the rod intermittent member is engaged with a thread of the pulling rod.

The rod intermittent member is separated from the pull rod when the power supply to the electromagnet is released. The rod intermittent member is separated from the pull rod by the restoring force of the spring.

Effects of the wrist-pushing device for blood pressure measurement and the wrist blood pressure monitor having the wrist-pushing device of the present invention are as follows.

First, according to the present invention, a blood pressure can be conveniently measured whenever a user needs to measure blood pressure, and the accuracy of blood pressure measurement can be improved because of excellent wrist adhesion.

According to the present invention, there is no need for a pumping device for airbag filling, and an exhaust device for exhausting air, for example, an exhaust valve is not required.

In addition, according to the present invention, the wrist blood pressure monitor can be naturally released without using any additional power, and when the battery has reached the end of its life in the blood pressure measurement process, the wrist blood pressure monitor is naturally loosened, The use safety is excellent and blood flow disorder or accident caused by the wrist blood pressure monitor can be prevented.

In order to know the trend of the ever-changing blood pressure, it is important to measure the blood pressure periodically at the same time every day and to record the value. The present invention can automatically measure the blood pressure at predetermined time intervals by electronic automatic control, It is very advantageous to measure the blood pressure regularly without missing the timing of blood pressure measurement.

In addition, according to the present invention, since the measured blood pressure data can be transmitted to a doctor or a specialist through a wireless communication unit, it can be used for analyzing a patient having hypertension, diabetes, hepatic disorder, arteriosclerosis, Particularly effective management of blood pressure can be achieved.

BRIEF DESCRIPTION OF THE DRAWINGS The features and advantages of the present invention will become better understood with reference to the following description taken in conjunction with the following detailed description of embodiments of the invention,
1 is a cross-sectional view schematically showing an embodiment of a wrist blood pressure monitor according to the present invention;
FIG. 2 is an exploded view of the wrist blood pressure monitor shown in FIG. 1; FIG.
FIG. 3 is a sectional view of the wrist blood pressure monitor shown in FIG. 1 when wrist is worn to form a lung ring;
FIG. 4 is a cross-sectional view showing the wrist blood pressure monitor shown in FIG. 1 being tightened for wrist compression; FIG.
FIG. 5 is a perspective view showing a side of a wrist strap applied to the wrist blood pressure monitor shown in FIG. 4; FIG.
6 is a side view of an embodiment of a strap tightener for automatic tightening of a wrist strap according to an embodiment of the present invention;
7 is a cross-sectional view of an embodiment of a strap connector for a wrist strap according to an embodiment of the present invention;
FIG. 8 is a perspective view of the strap connector shown in FIG. 7; FIG.
Fig. 9 is a perspective view for explaining the intermittence of the strap connector and the pull rod shown in Fig. 6; Fig.
10 is a sectional view showing the operation of the strap connector shown in Fig. 7; Fig. And
11 is a block diagram illustrating an overall configuration of a wrist blood pressure monitor according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing embodiments of the present invention, the same reference numerals are used for the same configurations.

First, an embodiment of a wrist blood pressure monitor according to the present invention will be described with reference to FIGS. 1 to 4. FIG. 1 is an exploded view of a wrist blood pressure monitor according to an embodiment of the present invention. FIG. 2 is an exploded view of the wrist blood pressure monitor shown in FIG. 1. FIG. 3 is a cross- FIG. 4 is a cross-sectional view illustrating a state where the wrist blood pressure monitor shown in FIG. 1 is tightened for wrist compression.

1 to 4, a wrist blood pressure monitor according to an embodiment of the present invention includes a wrist strap 100 for wrist wearing, a sensor 200 for blood pressure sensing, And a strap tightener (Strap Tightener) 300.

The wrist blood pressure monitor according to the present embodiment is a blood pressure measuring cuff for surrounding the wrist and measuring blood pressure. The blood pressure measuring cuff may be provided in a portable type such as a wristwatch during a user's activity, The blood pressure can be monitored from time to time in other situations, and also connected to other devices by wire or wireless.

The wrist strap 110 includes a strap base 110 for holding the wrist and supporting the sensor 200 and a strap base 110 for wrist strapping, And an air bag 120 provided in the strap base 110, that is, an air bag 120.

The airbag 120 may be configured to press the wrist for measurement of pulse pressure in the wrist, and may be configured as an air chamber capable of injecting and discharging air, for example, an air inlet and an air outlet. In this embodiment, The airbag 120 is a structure in which air is prevented from being injected, that is, the airbag 120 is always sealed with air inside.

In this embodiment, the sensor 200 senses the pressure of the airbag 120, for example, a pressure sensor is applied to the airbag 120 . Various sensors capable of measuring air pressure can be applied to the sensor 200. The sensor 200 is provided on the airbag 120 and is connected to a cable 210 installed on the wrist strap 110, That is, a circuit board 420 that performs a function of a blood pressure calculation unit.

The strap base 110 may be made of a variety of flexible materials such as leather, cloth, or silicone, and the airbag 120 may be made of elastic material such as silicone, urethane or rubber.

In the present embodiment, the wrist strap 110 is detachably connected to one end of the wrist strap 110 so as to form a closed loop, and the display unit 400, which will be described later, (110) may be divided into a left strap (111) and a right strap (112).

An example of a configuration for connecting the one end and the other end of the wrist blood pressure monitor, particularly, the one side and the other side of the wrist strap 110 is a strap connection portion such as a velcro, a hook, a button, or a buckle. In this embodiment, The strap tightener 300 functions as a strap connection portion. Of course, the wrist strap may be a closed loop structure without using a separate connecting device. For example, the wrist strap may be an integral band structure that is continuous without having a removable strap connection.

The wrist strap 100 may be provided with a display unit 400 for displaying (outputting) the blood pressure of the user (subject, that is, the wearer).

The display unit 400 has a blood pressure display function and may further have a clock function. For example, the display unit 400 may be switched to the blood pressure output mode and the watch mode, or the blood pressure and time may be displayed together with the display unit 400. [

The display unit 400 includes a display body 410 and a display window 430. The display window 430 includes a blood pressure display unit 431 for displaying blood pressure, And a time display unit 432 for outputting time.

The display body 410 may include a circuit board 420 electrically connected to the sensor 200 to calculate a blood pressure and further output a blood pressure value to the blood pressure display window. In this embodiment, the circuit board 420 is a control unit, that is, a blood pressure calculation unit, as described above.

Although not shown, the display body 410 may include a battery for supplying power to the wrist blood pressure monitor, and the circuit board 420 may control the operation of the strap tightener 300 It is possible. Of course, the wrist blood pressure monitor according to the present embodiment may be powered externally through a power cable or may be operated based on sunlight.

In addition, the display unit may be provided with an alarm function, for example, an alarm function for notifying the blood pressure check time and / or an alarm function for notifying that the blood pressure check is normally completed. Accordingly, the user can accurately measure / record the blood pressure at a time when the blood pressure check is required.

As described above, the wrist blood pressure monitor according to the present embodiment may perform the blood pressure measurement periodically or irregularly by the user's operation. However, the wrist blood pressure monitor according to the present embodiment may automatically measure blood pressure at regular or irregular times May be performed.

Meanwhile, the strap tightener 300 is a device for tightening the wrist blood pressure monitor, particularly the wrist strap 100, in a closed loop state, and reduces the circumferential length of the wrist strap 110 to close the wrist blood pressure monitor.

That is, the strap tightener 300 is a fastener for selectively tightening the wrist strap 110. In a state where the wrist blood pressure monitor is worn on the subject's wrist, a portion of the subject's wrist, particularly the radial artery, Is an automatic tightening device for tightening the wrist strap (110) so as to be pressed at a predetermined pressure or more.

As the strap tightener 300, various types of transmission devices such as a linear motor, a rack / pinion device, a cylinder device, and an electric motor can be used. In this embodiment, the strap tightener 300 includes a strap connector 300, 310 and a retractor 320. As shown in FIG.

The strap connector 310 detachably connects the one side portion 110a of the wrist strap 110 to the other side portion 110b of the wrist strap 110 so that the wrist strap 110 ) Will form the lung loop.

The strap connector 310 is a fin structure that is inserted into at least one strap fixing hole 113 formed on the other side portion 110b of the wrist strap, A fastening protrusion 310a is fitted to the fastening hole 113 and a head for preventing the strap from being separated from the fastening protrusion 310a is formed at an upper end of the fastening protrusion 310a.

The strap connector 310 or the strap connection part is movably provided on the left strap 111 more specifically than the one side part 110a of the wrist strap and the strap connector 310 is provided on the wrist strap 110, As shown in Fig.

In addition, the retractor 320 is a component having a function of selectively pulling the strap connector 310, that is, a wrist strap 110 loosely worn on the wrist during a blood pressure measurement. . The strap tightener 300 may additionally perform a function of reducing the circumference length of the wrist blood pressure monitor together with a function of reducing the circumference of the wrist blood pressure monitor 300, or may reduce the circumference of the wrist blood pressure monitor 300 only. For example, the retractor may perform the function of pulling and pushing the strap connector together, or it may perform only the pulling function.

More specifically, the retractor 320 is provided at one side 110a of the wrist strap so as to move the strap connector 310 in one direction, thereby reducing the circumferential length of the wrist strap 100, .

Therefore, when the strap tightener 300 is operated in a state where the wrist blood pressure monitor is loosely worn on the subject's wrist in the form shown in FIG. 3, the wrist strap 110 is dislocated to reduce the circumferential length as shown in FIG. 4 So that the wrist is tightened by the wrist strap, and a predetermined portion of the wrist, that is, a region where the radial artery A passes is pressed by the airbag 120. 1, 3, and 4, the airbag 120 is formed to have the same thickness as that of the airbag 120. However, the airbag 120 may be formed to be thicker than the other portions.

When the strap tightener 300 is operated in the reverse direction, the wrist pressure may be reduced while the circumferential length of the wrist blood pressure monitor is increased again in the state of FIG. 4 to FIG.

Although the strap connector 310 can increase / decrease the circumferential length of the wrist blood pressure monitor by reciprocating in a direction opposite to the one direction by the retractor 320, The retractor 320 may be interlockingly connected. For example, the strap connector 310 may be connected to the retractor 320 only when the strap connector 310 is pulled in one direction by the retractor 320, or may be connected to the strap tightener 300, The connection between the strap connector 310 and the retractor 320 may be disconnected in a state where the power supply is interrupted and when the connection between the strap connector 310 and the retractor 320 is disconnected, And when the wrist blood pressure monitor is worn on the wrist, the wrist strap can be naturally loosened by the expanding force of the wrist.

5 to 9, the retractor 320 includes a rod 321 connected to the strap connector, a motor 322 for moving the strap connector 310 by operating the pull rod 321, And an actuator 322 such as a motor.

In this embodiment, the pull rod 321 is a rod that rotates in place by the actuator 322. When the pull rod 321 is rotated, the strap connector 310 is formed on the wrist strap 110 That is, along the slot-shaped connector moving path.

More specifically, in the present embodiment, the pull rod 321 is a screw bar rotatably inserted into the strap connector 310, is rotated by the actuator 322, And has formed threads 321a.

When the pull rod 321 is rotated by the actuator 322, the strap connector 310 moves along the axis (longitudinal direction) of the pull rod 321. That is, the rotational movement of the pull rod 321 is converted into a linear movement of the strap connector 310.

7 shows a configuration in which both the pulling rod 321 can be rotated in both directions, that is, the pulling and unfastening (relaxation) of the wrist strap by the pulling device 320, that is, expansion and contraction of the wrist blood pressure meter are both performed . However, a one-directional rotary motor can be applied to the actuator so that the pull rod 321 rotates only in the direction of pulling the strap connector 310, and the pulling of the wrist strap can be applied to the retractor 320, It may naturally be performed manually or by the expanding force of the wrist which is worn on the wrist blood pressure monitor after the connection of the strap connector 310 is disconnected without using a separate power source (power source).

In this embodiment, the connection between the strap connector 310 and the pull rod 321 can be interrupted, and when the strap connector 310 and the pull rod 321 are connected or engaged with each other, When the strap connector 310 can be moved in one direction or both directions and the strap connector 310 and the pull rod 321 are disconnected from each other, Since the kinetic energy is not transmitted to the strap connector 310, the strap connector 310 is not affected by the retractor 320, so that the strap connector 310 is free to move.

The strap connector 310 is selectively engaged with the pull rod 321 so that the connection between the strap connector 310 and the pull rod 321 can be interrupted, 310 can be moved by the retractor 320 when the retractor 320 is engaged with the tow rod 321.

The strap connector 310 includes a connector body 311 into which the pull rod 321 is inserted and a rod interlocking member 311 that interrupts the connection between the pull rod 321 and the connector body 311 312).

The connector body 311 is movably provided on the wrist strap 110 along the longitudinal direction of the wrist strap 110 at one side 110a of the wrist strap 110, That is, the left strap 111 is connected to the other side 110b of the wrist strap, that is, the right strap 112.

The rod body 311 is formed with a rod hole 311d through which the pull rod 321 is inserted in a forward and backward direction and the rod interlock member 312 is engaged with the pull rod 321, The connector body 311 moves along the pull rod 321 when the actuator 322 is driven.

The rod interlocking member 312 is configured to function as a clutch and is movably provided in the connector body 311 for interlocking the strap connector 310 and the pull rod 321, And is selectively engaged with the threads 321a of the tow rod. In this embodiment, the connection between the retractor 320, particularly the pull rod, and the strap connector 310 is accomplished by powering the strap connector 310.

The connector body 311 in this embodiment is an electromagnet. When the connector body 311 is magnetized, the strap connector 310 and the retractor 320 are connected. When the magnetization is released, the strap connector 310 and the retractor 320 are disconnected.

7 to 9, the rod intermittent member 312 is moved by a magnetic field induced in the connector body by a current flow. In other words, when a current flows through the connector body 311, the connector body 311 is magnetized and the rod interlocking member 312 is moved by the magnetic force of the connector body 311 to move the pull rod 321 And is engaged with the thread 321a, more specifically, the thread 321b between the threads.

The connector body 311 is a solenoid including a frame 311a formed with the rod hole 311d and coils 311b and 311c wound around the frame 311a and the frame 311a One side (for example, the left side) of the frame 311a becomes the N pole and the opposite side (for example, the right side) becomes the S pole when a current flows through the coils 311b and 311c as conductors. The electromagnet principle itself by the solenoid is known, and further explanation is omitted.

The coils 311b and 311c are wound on the left and right sides of the frame 311a and the coil winding slots are formed on the left and right sides of the frame 311a. In this embodiment, the coil includes a left coil 311b and a right coil 311c which are wound on the left and right sides of the frame 311a, and one of both ends of the frame 311a And is wound on the frame 311a so as to become the N pole and the S pole on the opposite side.

The rod intermittent member 312 includes an intermittent pin 312a selectively engaged with the thread of the pull rod 321 and a base member 312b provided at one end of the intermittent pin 312a . A rod intermittent hole (a portion into which the intermittent pin is inserted) into which the rod intermittent member 312 is movably inserted is formed in the frame 311a.

The intermittent pin 312a is a nonmagnetic body inserted movably in the rod intermittent hole and the tip of the intermittent pin 312a is selectively engaged with the thread of the pull rod 321. [ When the connector body 311 is magnetized, the base member 312b is moved by a magnetic force so that the intermittent pin 312a is moved together with the base member 312b And is engaged with the pulling rod 321.

The rod intermittent hole is formed so as to pass through the frame 311a in the left-right direction. The rod intermittent hole and the rod hole 311d cross each other in a cross shape ('+' shape) and communicate with each other. The rod intermittent hole may be divided into a first intermittent hole formed on the left side of the rod hole 311d and a second intermittent hole formed on the right side of the rod hole 311d. In this embodiment, the rod interlocking member 312 is provided in the first intermittent hole and the second intermittent hole, respectively.

When the power supply to the coils 311b and 311c is released more specifically to the electromagnet than the electromagnet, the rod intermittent member 312 is separated from the pull rod 321, The connection or engagement of the tow rod 321 is released. In this embodiment, the rod intermittent member 312 is separated from the pull rod 321 by the restoring force of the spring 313.

The spring 313 is provided at the entrance side of the rod intermittent hole to elastically support the base member 312b in the outer direction of the frame 311a. More specifically, the spring 313 is provided at the entrance side (the left side portion of the frame) of the first intermittent hole and the entrance side (the right side portion of the frame) of the second intermittent hole, And the base member 312b installed on the right side is elastically supported in the left and right directions of the frame.

When power is applied to the coils 311b and 311c, a force between the connector body 311 and the base member 312b moves the base member 312b over the spring 313, The pin 312a is inserted into the frame 311a by the base member 312b so that the pull rod 321 and the intermittent pin 312a are connected.

Conversely, when the power supply to the coils 311b and 311c is interrupted, the base member 312b is pushed by the spring 313, and the intermittent pin 312a is separated from the pull rod 321. [

Accordingly, the force and the pulling force for restraining the movement of the strap connector 310 are removed, and the wrist strap 110 is naturally loosely pulled by the elasticity (expansion force) of the skin and subcutaneous tissues without using a separate power source. .

Of course, the disengagement or tightening of the wrist strap 110 may be realized by the reverse operation (reverse rotation of the tow rod) of the retractor 320 as described above. However, when the pull rod 321 and the connector body 311 are always connected, when the wrist strap 110 is in an unsteady state such as when the wrist strap 110 is pressed against the wrist, 110), that is, the compression of the wrist may be maintained, resulting in problems such as blood flow disorder. On the other hand, in the present embodiment, since the restraint to the strap connector 310 is released without power supply, the above-described problem can be prevented.

The connector body 311 and the rod interlocking member 312 are received in the connector case 310b and the fastening protrusion 310a is formed on the upper side of the frame 311a do.

10 shows the intermittent movement of the strap connector 310 and the pull rod 321. When the intermittent pin 312a of the rod interlocking member and the pull rod 321 are separated as shown in FIG. , The driving force of the actuator 322 is not transmitted to the strap connector 310, so that the movement of the strap connector 310 is both free in both directions.

10B, the driving force of the actuator 322 can be transmitted to the strap connector 310 in a state where the intermittent pin 312a of the rod intermittent member and the traction rod 321 are connected to each other, When the actuator 322 is stopped, the strap connector 310 is restrained by the pull rod 321 to restrict movement. When the power supply to the coil is released, the intermittent pin 312a and the pull rod 321 are separated as shown in FIG. 10A by the spring 131, so that the wrist strap can naturally be loosened.

The measurement of the blood pressure using the wrist blood pressure monitor may be performed in a process of being pressed by the wrist blood pressure monitor of the subject or in a process of releasing the pressing force of the wrist blood pressure monitor by loosening the wrist blood pressure monitor.

Referring to FIG. 11, the wrist blood pressure monitor of the present embodiment includes a wireless unit for transmitting blood pressure data (blood pressure of a user) other than the above-described display unit to a predetermined terminal such as a terminal or a management module of a smart phone, And may further comprise a communication unit.

In addition to the blood pressure data, the wireless communication unit may be configured to transmit the emergency rescue signal to the external communication device in a specific situation, for example, in an emergency. Accordingly, real-time blood pressure data of the subject (user) can be transmitted to a manager such as a primary care physician or a specialist through a smart phone, and utilized for stable health management of the subject.

In other words, more attention needs to be paid to those who have hypertension, diabetes, hepatic disorder, arteriosclerosis, peripheral nerve disorders of blood circulation, etc. Since the blood pressure monitor of this embodiment has a data transmission function, Management can be done.

The wrist blood pressure gauge further includes a blood pressure calculation unit that calculates a blood pressure of the subject based on a signal from the pressure sensor, a data storage unit that stores blood pressure data, And a control unit for collecting and analyzing data and controlling the transmission of the designated emergency rescue signal when the user's condition is critical.

It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or scope of the invention as defined in the appended claims. .

Therefore, the above-described embodiments are to be considered as illustrative rather than restrictive, and thus the invention is not limited to the above description, but may be modified within the scope of the appended claims and equivalents thereof.

100: wrist strap 110: strap base
120: air bag 200: sensor
300: Strap Tightener 310: Strap Connector
311: connector body 311a: frame
311b, 311c: coil 312: rod intermittent member
312a: intermittent pin 312b: base member
313: spring 320: retractor
321: Traction rod 322: Actuator
400: display unit

Claims (12)

As a wrist blood pressure monitor that can be worn on the wrist:
Wrist Strap for Wrist Wear;
A sensor provided on the wrist strap for measuring blood pressure; And
And a strap tightener for selectively tightening the wrist strap so that the circumferential length of the wrist blood pressure monitor is reduced,
Wherein the strap tightener tightens the wrist strap so as to press the wrist by the wrist strap when measuring blood pressure, and connects one side of the wrist strap to the other side of the wrist strap. The method according to claim 1,
The wrist strap comprising: A strap base for holding the wrist; and an air bag provided on the strap base for pressing the wrist. 3. The method of claim 2,
Wherein the airbag is a structure in which air is prevented from being injected, and the airbag is hermetically sealed with air. The method according to claim 1,
The strap tightener comprising:
A strap connector movably provided at one side of the wrist strap to connect the wrist strap to the other side of the wrist strap so that the wrist strap forms a closed loop;
And a retractor provided at one side of the wrist strap to selectively pull the strap connector so that a circumferential length of the wrist blood pressure monitor is reduced. 5. The method of claim 4,
Wherein the strap connector and the retractor are interlockable. The method according to claim 4 or 5,
The retractor comprising:
A pull rod connected to the strap connector, and
And an actuator for actuating the pull rod to move the strap connector along the wrist strap. The method according to claim 6,
Wherein the pull rod is a screw bar that is rotated by the actuator and has a screw thread formed on the outer circumferential surface and is rotatably inserted into the strap connector; Wherein the strap connector moves along the pull rod. 8. The method of claim 7,
Wherein said strap connector is selectively engaged with said pull rod to be pulled by said pull. 9. The method of claim 8,
The strap connector comprising:
A connector body provided at one side of the wrist strap and connecting one side of the wrist strap to the other side of the wrist strap, a rod hole through which the pull rod is inserted and being movable along the pull rod,
And a rod interlocking member movably provided on the connector body for selectively interlocking with the threads of the pull rod for interlocking the strap connector and the pull rod. 10. The method of claim 9,
Wherein the connector body includes an electromagnet for moving the rod intermittent member so that the rod intermittent member is engaged with a thread of the pulling rod. 11. The method of claim 10,
And the rod intermittent member is separated from the pull rod when the power supply to the electromagnet is released. 12. The method of claim 11,
Wherein the rod intermittent member is separated from the pull rod by a restoring force of a spring.

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