Wearable device and blood pressure measurement system

Abstract

The application provides a wearable device and a blood pressure measuring system. The wearable device comprises a strap, a first air bag and a device main body. One end of the strap is configured to be connected with the other end of the strap to form a wearing space. The first air bag is arranged on the side of the strap facing the wearing space. The device main body is arranged on the side of the first air bag away from the strap and is configured to inflate the first air bag. When the strap forms the wearing space, part of the first air bag is configured to be arranged opposite to the side of the device main body away from the strap, and the first air bag is further configured to expand into the wearing space after inflation. Through the above arrangement, the compression force of the first air bag on the wrist of the user can be enhanced, and the accuracy of blood pressure measurement of the wearable device can be improved.

Description

Technical Field

[0001] This application relates to the technical field of wearable devices, specifically to a wearable device and a blood pressure measurement system. Background Technology

[0002] With increasing awareness of disease prevention, people are paying more and more attention to their personal health. Taking blood pressure monitoring as an example, more and more people are using wearable devices to conveniently monitor their blood pressure. Currently, common wearable devices generally have an air bladder that inflates to compress the user's blood vessels, thus achieving blood pressure monitoring. However, the pressure generated by the inflated air bladder in most wearable devices is insufficient, resulting in less than ideal blockage of the user's blood vessels and reducing the accuracy of blood pressure measurements. Therefore, improving the pressure exerted by the air bladder on the user's blood vessels has become a major concern for industry professionals. Summary of the Invention

[0003] One embodiment of this application provides a wearable device, the wearable device comprising: a strap, a first airbag, and a device body; one end of the strap is configured to connect to the other end of the strap to form a wearing space; the first airbag is disposed on the side of the strap facing the wearing space, and the device body is disposed on the side of the first airbag away from the strap, and is configured to inflate the first airbag; wherein, when the strap forms the wearing space, a portion of the first airbag is configured to be opposite to the side of the device body away from the strap, and the first airbag is further configured to expand into the wearing space after inflation.

[0004] This application embodiment also provides a blood pressure measurement system, the blood pressure measurement system including: a display device and the above-mentioned wearable device; wherein, the main body of the device is configured to establish an electrical connection with the display device via wired and / or wireless means, and the display device is configured to display blood pressure information measured by the main body of the device.

[0005] The wearable device provided in this application embodiment has a first airbag positioned on the side of the strap within the wearing space, with the main body of the device located on the side of the first airbag away from the strap. After the strap forms the wearing space, a portion of the first airbag is positioned opposite the side of the main body away from the strap. This arrangement allows the first airbag to apply pressure to both the palm and back of the user's wrist when it expands into the wearing space, creating a pressure that holds the user's wrist in the middle. This configuration enhances the pressure generated when the first airbag expands into the wearing space, thereby improving the accuracy of blood pressure measurement by the wearable device. Attached Figure Description

[0006] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0007] Figure 1 This is a schematic diagram of the structure of the blood pressure measurement system 5 provided in the embodiments of this application;

[0008] Figure 2 yes Figure 1 A schematic diagram of the structure of the wearable device 10;

[0009] Figure 3 yes Figure 1 An exploded view of the wearable device 10.

[0010] Figure 4 yes Figure 2 A schematic diagram of the cross-sectional structure of the wearable device 10 along line V-V;

[0011] Figure 5 yes Figure 4 A magnified view of a portion of point A in the middle;

[0012] Figure 6 yes Figure 2 A schematic diagram of the cross-sectional structure of the wearable device 10 along line VI-VI;

[0013] Figure 7 yes Figure 6 A magnified view of a portion of point B in the middle. Detailed Implementation

[0014] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be particularly noted that the following embodiments are for illustrative purposes only and do not limit the scope of the application. Similarly, the following embodiments are only some, not all, embodiments of the present application, and all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present application.

[0015] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0016] Please see Figures 1 to 3 , Figure 1This is a schematic diagram of the structure of the blood pressure measurement system 5 provided in the embodiments of this application. Figure 2 yes Figure 1 Another structural diagram of the wearable device 10. Figure 3 yes Figure 1 An exploded view of the wearable device 10.

[0017] The blood pressure measurement system 5 provided in this application embodiment can be used to measure blood pressure, so that users can understand their own blood pressure status and play a role in disease prevention. Figure 1 As shown, the blood pressure measurement system 5 may include a wearable device 10 and a display device 20. The wearable device 10 can be worn on the user's body and can compress the user's body, measuring the pressure applied to the user's body and the user's pulse pressure wave to achieve blood pressure detection. The display device 20 can establish an electrical connection with the wearable device 10, and can receive the blood pressure information detected by the wearable device 10, converting the received blood pressure information into an image for display by the user. In this embodiment, the wearable device 10 can be worn on the user's wrist, and the display device 20 can also be a mobile phone. The wearable device 10 and the display device 20 can establish an electrical connection via wired and / or wireless means to achieve electrical signal transmission between them.

[0018] Optionally, the wearable device 10 can be worn not only on the user's wrist, but also on other parts of the user's body, such as the arm, thigh, or calf, as long as the wearable device 10 can compress the user's blood vessels to measure blood pressure. Meanwhile, the display device 20 can be a mobile phone, a smartwatch, tablet, or laptop, as long as the display device 20 can establish an electrical connection with the wearable device 10 and display the blood pressure information measured by the wearable device 10. Of course, in addition to displaying blood pressure information, the user can also control the wearable device 10 through the display device 20 (such as turning it on or off), but this embodiment does not limit this.

[0019] Wearable device 10 can be worn on a user's wrist, and wearable device 10 can compress the user's wrist to block the radial artery in the wrist for blood pressure measurement. For example... Figures 2 to 3As shown, the wearable device 10 may include a strap 100, a first airbag 200, and a device body 300. The strap 100 can be worn on the user's wrist. The first airbag 200 can be located on the side of the strap 100 that fits against the user's wrist. The device body 300 can be located on the side of the first airbag 200 that faces away from the strap 100, and can inflate the first airbag 200 to compress the user's wrist. In this embodiment, the first airbag 200 has the advantage of applying high pressure to the user's wrist after inflation, ensuring that the radial artery in the user's wrist can be blocked, thereby improving the accuracy of blood pressure measurement by the wearable device 10.

[0020] Please see Figures 4 to 5 , Figure 4 yes Figure 2 A schematic diagram of the cross-sectional structure of the wearable device 10 along line V-V. Figure 5 yes Figure 4 A magnified view of a portion of point A in the middle.

[0021] like Figure 4 As shown, one end of the strap 100 can be connected to the other end of the strap 100, allowing the strap 100 to be arranged in a loop and forming a wearing space 101, through which the user can wear the strap 100 on their wrist. For example, one end of the strap 100 can have a connecting ring 110, through which the other end of the strap 100 can pass and be bent and folded on the side of the strap 100 facing away from the wearing space 101. The other end of the strap 100 can be connected to the side of the strap 100 facing away from the wearing space 101 via a component such as a metal buckle or Velcro, allowing the two ends of the strap 100 to be detachably connected for easy wearing. Of course, in addition to the design of the connecting ring 110, one end of the strap 100 can also have a buckle, and the other end can have multiple pinholes that cooperate with the buckle, allowing the two ends of the strap 100 to be detachably connected via the buckle and the pinholes. It is understood that, in addition to the two detachable connection methods mentioned above, the two ends of the strap 100 can also be connected using other detachable connection methods (such as snaps, etc.), and this embodiment does not limit this. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0022] Furthermore, the strap 100 can be a woven strap made of a relatively stiff material (such as fishing line and polypropylene yarn), and the strap 100 can be used to support the first airbag 200 to control the expansion direction of the first airbag 200. Since the first airbag 200 is located on the side of the strap 100 that fits against the user's wrist, that is, the side of the strap 100 facing the wearing space 101, when the first airbag 200 inflates, the strap 100 can support the first airbag 200 in the direction close to the strap 100, so that the first airbag 200 can only inflate towards the wearing space 101 to compress the user's wrist. Through the above arrangement, since the strap 100 is located on the outermost side of the wearing space 101, the strap 100 can partially obscure the first airbag 200 and the main body of the device 300, enhancing the aesthetic consistency of the wearable device 10.

[0023] Alternatively, the material of the strap 100 may not be limited to fishing line and polypropylene yarn, and the strap 100 may not be limited to a braided strap. As long as the strap 100 can support the first airbag 200 so that the first airbag 200 can expand toward the wearing space 101, this embodiment does not limit this.

[0024] All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0025] The first airbag 200 can be located on the side of the strap 100 facing the wearing space 101, and the first airbag 200 can be connected to the device body 300. Under the control of the device body 300, the first airbag 200 can inflate to compress the user's wrist, thereby blocking the radial artery in the user's wrist. Figure 4As shown, when a user wears the wearable device 10, the first airbag 200 can partially wrap around the user's wrist and cover most of the wrist area, so that the first airbag 200 can compress the user's wrist after inflating. Simultaneously, to increase the compressive force of the first airbag 200 after inflating, after the strap 100 forms the wearing space 101, a portion of the first airbag 200 can also be positioned opposite the side of the device body 300 away from the strap 100. Thus, when the first airbag 200 inflates, it can exert pressure on the user's wrist from at least three directions, increasing the compressive force and ensuring that the radial artery in the user's wrist can be blocked, thereby improving the measurement accuracy of the wearable device 10.

[0026] like Figure 4 As shown, the first airbag 200 may include a first expansion region 210, a second expansion region 220, and a third expansion region 230 that are sequentially connected and communicate with each other along its length. The first expansion region 210 may be located between the strap 100 and the device body 300, and the device body 300 is configured to inflate the first expansion region 210. The second expansion region 220 may connect the first expansion region 210 and the third expansion region 230 respectively, and the second expansion region 220 itself can not only inflate but also conduct gas to the third expansion region 230 to achieve the inflation of the entire first airbag 200. The third expansion region 230 may be positioned opposite the side of the device body 300 away from the strap 100 after the strap 100 has formed the wearing space 101. Meanwhile, when a user wears the wearable device 10, the first expansion area 210 can be set on the side of the user's wrist that is located on the back of the hand, the second expansion area 220 can be set on the side surface of the user's wrist that connects the palm and the back of the hand, and the third expansion area 230 can be set on the side of the user's wrist that is located on the palm.

[0027] When the first airbag 200 inflates, the first expansion area 210 expands in the first direction Z1, causing the device body 300 to press against the side of the user's wrist on the back of the hand. Simultaneously, the second expansion area 220 expands in the second direction X, pressing against the side surface of the user's wrist connecting the palm and the back of the hand. Furthermore, the third expansion area 230 expands in the third direction Z2 (opposite to the first direction Z1), pressing against the side of the user's wrist on the palm. With this configuration, the first airbag 200 can press against the user's wrist not only in the second direction X, but also in the first direction Z1 and the second direction Z2, creating a compressive force that clamps the user's wrist in the middle.

[0028] Through the above configuration, the first airbag 200 of this embodiment can compress the user's wrist in at least three directions, thereby enhancing the compressive force exerted by the first airbag 200 on the user's wrist, ensuring that the radial artery in the user's wrist can be blocked, and improving the accuracy of blood pressure measurement by the wearable device 10. Simultaneously, the enhanced compressive force of the first airbag 200 also allows for a narrower first airbag 200 (some designs widen the first airbag 200 to increase its volume and expand its expansion range), which in turn allows for a narrower strap 100 supporting the first airbag 200, improving the aesthetic appearance of the wearable device 10. In this embodiment, the minimum width of the first airbag 200 is 26mm, and the minimum width of the strap 100 is also 26mm. Of course, the width of the first airbag 200 can also be greater than 26mm; this embodiment does not limit this.

[0029] It is understood that the aforementioned first direction Z1 and third direction Z2 can be parallel to the thickness direction of the device body 300, while the second direction X can be perpendicular to the thickness direction of the device body 300. Meanwhile, since the first airbag 200 partially encloses the user's wrist, the first direction Z1, the second direction X, and the third direction Z2 are only the main directions in which the first airbag 200 generates pressure after expansion. Besides these three main directions, the first airbag 200 can also apply pressure to the user's wrist in other secondary directions (not shown), which are not limited in this embodiment.

[0030] To allow the main body 300 to inflate the first airbag 200, the first airbag 200 may also be equipped with a first air nozzle 240. For example... Figure 5 As shown, the first air nozzle 240 can be located on the side of the first expansion zone 210 facing the device body 300, and the first air nozzle 240 can be inserted into the device body 300, connecting the first expansion zone 210 and the air pump inside the device body 300. In this way, the device body 300 can be inflated into the first expansion zone 210 through the first air nozzle 240 to achieve the inflation of the first airbag 200.

[0031] Optionally, the first airbag 200 may also adopt a double-layer airbag design. That is, the first airbag 200 may have two stacked and connected cavities to increase the volume of the first airbag 200, increase the inflation stroke of the first airbag 200, and enhance the pressure exerted by the inflation of the first airbag 200 on the user's wrist.

[0032] The main body 300 can be located on the side of the first expansion zone 210 opposite to the strap 100, and the main body 300 can integrate components that enable the blood pressure detection function of the wearable device 10. For example... Figure 4As shown, the device body 300 may have a top surface 301 and a bottom surface 302 disposed opposite to each other, and side surfaces 303 respectively connecting the top surface 301 and the bottom surface 302. Both the top surface 301 and the bottom surface 302 may be perpendicular to the thickness direction of the device body 300, and the top surface 301 may be the side of the device body 300 in contact with the first expansion area 210. The bottom surface 302 may be the side of the device body 300 in contact with the user's wrist, and when the strap 100 surrounds and forms the wearing space 101, the bottom surface 302 may also be disposed opposite to the third expansion area 230. Thus, when the first airbag 200 inflates, the first expansion area 210 expands into the wearing space 101 and applies a pushing force to the device body 300 on the top surface 301, allowing the device body 300 to press against the user's wrist in a first direction Z1 perpendicular to the top surface 301. Simultaneously, the second expansion zone 220 also expands into the wearing space 101 and presses against the user's wrist in the second direction X, perpendicular to the side 303. In addition, the third expansion zone 230 also expands into the wearing space 101 and presses against the user's wrist in the third direction Z2, perpendicular to the bottom surface 302.

[0033] Furthermore, since the first expansion area 210 is located on the top surface 301 of the device body 300, it will not obstruct the bottom surface 302 of the device body 300. Based on this, the device body 300 can also be equipped with a detection module 310, which can detect biological information (such as heart rate, blood pressure, or blood oxygen saturation) through the side of the device body 300 away from the strap 100, i.e., the bottom surface 302 of the device body 300. For example, the detection module 310 is a PPG module, and it can be located inside the device body 300. Figure 4 (As shown), it can emit detection light from the bottom surface 302 into the wearing space 101, and receive detection light reflected back into the main body 300 of the device from the user's wrist, so as to calculate the user's blood pressure information according to preset logic based on the received detection light. In this embodiment, by setting the detection module 310 to measure blood pressure, the obtained blood pressure information can be compared and supplemented with the blood pressure information obtained by the wearable device 10 using the first airbag 200, so as to improve the accuracy of blood pressure measurement by the wearable device 10.

[0034] Optionally, the detection module 310 may not be limited to a PPG module; it may also be an ECG module. In this case, the detection module 310 may be located on the bottom surface 302 of the device body 300, so that it comes into contact with the user's wrist when the user wears the wearable device 10, thereby acquiring the user's bioelectrical signals to realize the heart rate detection function. Of course, the detection module 310 may also include both a PPG module and an ECG module; this embodiment does not limit this.

[0035] Furthermore, the main body of the device 300 may also have a display surface 304 for displaying blood pressure data. Figure 2 (As shown). The display surface 304 can be connected to both the top surface 301 and the bottom surface 302, and it can also be exposed outside the wearing space 101 for easy observation by the user. With this configuration, the main body of the device 300 can independently display the measured blood pressure data without needing to cooperate with the display device 20. Of course, the design of the display surface 304 can also be omitted.

[0036] Please see Figures 6 to 7 , Figure 6 yes Figure 2 A schematic diagram of the cross-sectional structure of the wearable device 10 along line VI-VI. Figure 7 yes Figure 6 A magnified view of a portion of point B in the middle.

[0037] To enable blood pressure measurement, the wearable device 10 may also include a second airbag 400. For example... Figure 6 As shown, the second airbag 400 can be disposed on the side of the second expansion area 220 opposite to the strap 100, and the second airbag 400 can also be connected to the device body 300. It can inflate under the control of the device body 300 to conform to the user's wrist, measuring the pressure on the user's wrist and the user's pulse pressure wave, thereby obtaining the user's blood pressure information. The second airbag 400 can include a connecting part 410 and an expansion part 420. One end of the connecting part 410 can be disposed between the first expansion area 210 and the device body 300, and connected to the device body 300. The connecting part 410 can also conduct gas discharged from the device body 300. The expansion part 420 can be connected to the other end of the connecting part 410 and is located on the side of the second expansion area 220 opposite to the strap 100. The device body 300 can inflate the expansion part 420 through the connecting part 410, allowing the expansion part 420 to inflate and conform to the user's wrist for blood pressure measurement.

[0038] Optionally, the design of the second airbag 400 can be omitted. In this case, the first airbag 200 can not only compress the user's blood vessels, but also measure the user's blood pressure. This embodiment does not limit this.

[0039] To allow the main body 300 to inflate the expansion section 420, the connecting section 410 may also be provided with a second air nozzle 411. For example... Figure 7As shown, the second air nozzle 411 can be located on the side of the connecting portion 410 facing the device body 300, and the second air nozzle 411 can be inserted into the device body 300, connecting the connecting portion 410 and the air pump inside the device body 300. In this way, the device body 300 can inflate the expansion portion 420 through the second air nozzle 411 and the connecting portion 410 to achieve the expansion of the second airbag 400.

[0040] The terms "first," "second," and "third" used in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature.

[0041] Optionally, since the artery near the little finger is more deeply embedded and harder to block than the artery near the thumb, when the user wears the wearable device 10, the expansion portion 420 preferably covers a portion of the user's wrist near the thumb. This allows for the measurement of the pulse pressure wave of the artery near the thumb after the first airbag 200 blocks it. This configuration improves the measurement accuracy of the second airbag 400 and avoids the problem of the second airbag 400 measuring the pulse pressure wave of the artery near the little finger in the user's wrist, thus affecting the accuracy of blood pressure measurement.

[0042] To improve the overall appearance consistency of the wearable device 10, the wearable device 10 may also include a strap 500 to cover and decorate the first airbag 200 and the second airbag 400. For example... Figure 2 and Figure 4 As shown, the strap 500 can be located on the side of the strap 100 facing the wearing space 101, and the second expansion area 220, the third expansion area 230, and the expansion portion 420 can all be embedded in the strap 500, so that the strap 500 can cover the second expansion area 220, the third expansion area 230, and the expansion portion 420. To avoid the strap 500 restricting the expansion of the first airbag 200 and the second airbag 400, the strap 500 can also be a highly elastic fabric strap, and the strap 500 can elastically deform as the first airbag 200 and the second airbag 400 expand, thereby expanding its own accommodating space, reducing the restriction caused by the expansion of the first airbag 200 and the second airbag 400, and improving the accuracy of blood pressure measurement in the wearable device 10. Optionally, the belt 500 may not be limited to a cloth belt. It is only required that the belt 500 can undergo elastic deformation with the expansion of the first airbag 200 and the second airbag 400. This embodiment does not limit this.

[0043] The wearable device 10 provided in this application embodiment has a first airbag 200 disposed on the side of the strap 100 located within the wearing space 101, and the main body 300 disposed on the side of the first airbag 200 opposite to the strap 100. When the strap 100 surrounds and forms the wearing space 101, a portion of the first airbag 200 is positioned opposite the side of the main body 300 opposite to the strap 100. This arrangement allows the first airbag 200 to apply pressure to both the palm and back of the user's wrist when it expands into the wearing space 101, creating a pressure that holds the user's wrist in the middle. This configuration enhances the pressure generated when the first airbag 200 expands into the wearing space 101, thereby improving the accuracy of blood pressure measurement by the wearable device 10.

[0044] The above description is only a part of the embodiments of this application and does not limit the scope of protection of this application. Any equivalent device or equivalent process transformation made based on the content of this application specification and drawings, or direct or indirect application in other related technical fields, are similarly included in the patent protection scope of this application.

Claims

1. A wearable device, characterized in that, The wearable device includes: a strap, a first airbag, and a main body of the device; One end of the strap is configured to connect to the other end of the strap to enclose and form a wearing space; The first airbag is disposed on the tether, and the device body is disposed on the side of the first airbag opposite to the tether, and is configured to inflate the first airbag; wherein, When the straps enclose the wearing space, the first airbag is located on the side of the straps facing the wearing space. The side of the device body away from the strap is positioned opposite a portion of the first airbag after the strap forms the wearing space, and the first airbag is also configured to expand into the wearing space after inflation.

2. The wearable device according to claim 1, characterized in that, The wearable device also includes: a second airbag; The second airbag is located on the side of the first airbag away from the strap and is connected to the device body. The device body is also configured to inflate the second airbag so that the second airbag expands into the wearing space.

3. The wearable device according to claim 2, characterized in that, The wearable device also includes: a strap; The strap is located on the side of the strap facing the wearing space, and the first airbag and the second airbag are also embedded in the strap.

4. The wearable device according to claim 3, characterized in that, The first airbag includes: a first expansion zone, a second expansion zone, and a third expansion zone that are connected and communicate with each other in sequence; The main body of the device is located on the side of the first expansion zone opposite to the tether, and is configured to inflate the first expansion zone; the second airbag is located on the side of the second expansion zone opposite to the tether, and both the second and third expansion zones are embedded within the strap body; wherein, Once the straps enclose the wearing space, the third expansion zone is configured to be positioned opposite the side of the device body that is away from the straps.

5. The wearable device according to claim 3, characterized in that, The second airbag includes: a connecting portion and an inflatable portion; One end of the connecting portion is connected to the device body and is located between the device body and the first airbag; the expansion portion is connected to the other end of the connecting portion and is embedded in the belt body; wherein the device body is configured to inflate the expansion portion through the connecting portion.

6. The wearable device according to claim 4, characterized in that, The first expansion zone has a first air nozzle on the side facing the device body, and the first air nozzle is inserted into the device body; wherein the device body is configured to inflate the first expansion zone through the first air nozzle.

7. The wearable device according to claim 5, characterized in that, The connecting part is provided with a second air nozzle on the side facing the device body, and the second air nozzle is inserted into the device body; wherein the device body is configured to inflate the expansion part through the second air nozzle.

8. The wearable device according to claim 1, characterized in that, The main body of the device is also provided with a detection module, and the detection module is configured to detect biological information through the side of the main body of the device away from the frenulum.

9. The wearable device according to claim 8, characterized in that, The detection module is located inside the device body and is configured to emit detection light into the wearing space from the side of the device body away from the strap, and receive the detection light reflected back into the device body.

10. The wearable device according to claim 3, characterized in that, The strap is a braided strap and is configured to support the first airbag so that the first airbag expands into the wearing space after inflation; the strap body is a cloth strap and is configured to elastically deform as the first airbag and the second airbag expand.

11. The wearable device according to claim 1, characterized in that, The main body of the device has a display surface, which is connected to the side of the main body of the device that is close to the strap and the side of the main body of the device that is away from the strap, and is exposed outside the wearing space.

12. A blood pressure measurement system, characterized in that, The blood pressure measurement system includes: a display device and a wearable device as described in any one of claims 1-11; wherein... The main body of the device is configured to establish an electrical connection with the display device via wired and / or wireless means, and the display device is configured to display blood pressure information measured by the main body of the device.

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