Wrist strap and wrist type wearable device

Abstract

The invention discloses a wrist strap and wrist type wearable equipment. The wrist strap comprises a strap body and an air bag set which is fixed to the inner side of the strap body. The air bag set comprises a plurality of air bags, each air bag is provided with an air cavity, the air bags expand in the direction away from the belt body after the air cavities are inflated, and the air cavities of the air bags are independent of one another. The multiple air bags are arranged in the length direction of the belt body, and air cavities of every two adjacent air bags are partially overlapped in the length direction of the belt body. The air bag group of the wrist strap comprises a plurality of air bags, so that the air bag group can have a relatively large detection area, each air bag can be independently inflated and expanded, and the expanded air bags independently abut against the skin of a user, so that the air bag group has a relatively large detection range and a relatively small compression area.

Description

Technical Field

[0001] The present application relates to a wearable device, and in particular to a wristband and a wrist wearable device. Background Art

[0002] The pressure pulse wave is a mechanical signal generated by the impact of blood on blood vessels during the heart cycle. The pressure pulse wave exists in the arteries. By touching the radial artery, ulnar artery, temporal artery, carotid artery and other superficial arteries with your fingers, you can feel the beating at the same frequency as the heart. This beating signal is the pressure pulse wave.

[0003] In current technology, there are blood pressure measurement watches based on the oscillometric principle. Blood pressure measurement watches use air bags around the wrist to pressurize the wrist by linear pressure increase to obtain the pressure pulse wave of the arterial blood vessels. According to this pressure pulse wave, the current blood pressure value and other health parameters can be calculated. However, because the air bag covers most of the wrist circumference, the user's measurement comfort is poor and the measurement accuracy is insufficient. Summary of the invention

[0004] The purpose of the present application is to provide a wristband and a wrist wearable device. The airbag group of the wristband of the present application includes multiple airbags, so the airbag group can have a larger detection area, and each airbag can be independently inflated and expanded, and the expanded airbags independently press against the user's skin, so that the airbag group has a larger detection range and a smaller compression area.

[0005] In a first aspect, the present application provides a wristband that can be applied to a wrist wearable device, the wristband comprising a band body and an airbag group, the airbag group being fixed to the inner side of the band body; the airbag group comprising a plurality of airbags, each of which having an air cavity, the airbags expanding in a direction away from the band body after the air cavity is inflated, the air cavities of the plurality of airbags being independent of each other; the plurality of airbags being arranged along the length direction of the band body, the air cavities of two adjacent airbags partially overlapping in the length direction of the band body.

[0006] In this implementation, since the airbag group includes multiple airbags, the airbag group can have a larger detection area, and each airbag can be independently inflated and expanded. The expanded airbags independently press against the user's skin, so that the airbag group has a larger detection range and a smaller compression area.

[0007] The airbag group can be fixed on the inner side of the belt body, that is, the side of the belt body facing the wrist of the user, so that the belt body can provide support for the airbag group when the airbag group is expanded.

[0008] The airbag may include an air circuit group, one end of the air circuit group is connected to the airbag group, and the other end of the air circuit group is connected to the air pump, so that the air pump can inflate the airbag group through the air circuit group.

[0009] The airbag group and the airway group can both extend along the length direction of the belt. The length direction of the airbag group can be the same as the length direction of the belt, which is the X direction. The width direction of the airbag group can be the same as the width direction of the belt, which is the Y direction. The thickness direction of the airbag group can be the same as the direction of the belt, which is the Z direction. The X direction, the Y direction, and the Z direction are perpendicular to each other. The airbag group can extend to the middle of the belt, for example, the airbag group can extend to the position corresponding to the radial artery, or to the position corresponding to the ulnar artery, or to the position that can cover both the radial artery and the ulnar artery. When the wrist wearable device is worn, the airbag group can easily press against the radial artery and / or ulnar artery of the user, so that the wrist wearable device can accurately detect the pressure pulse wave.

[0010] Each airbag has an air cavity, and after the air cavity is inflated, the airbag expands in a direction away from the belt body, that is, it can expand in the direction of the user's wrist (i.e., the Z direction). The main expansion direction of the airbag can be a direction away from the belt body, and can be a direction perpendicular to or nearly perpendicular to the belt body. The air cavities of the multiple airbags are independent of each other. At this time, each air cavity can be inflated independently, and one airbag can be inflated, or multiple airbags can be inflated at the same time.

[0011] The plurality of airbags may be arranged along the length direction of the belt. In this case, the direction in which the plurality of airbags are arranged is the length direction of the airbag group, and the length direction of the airbag group is consistent with the length direction of the belt. The air cavities of two adjacent airbags partially overlap in the length direction of the belt. When the air cavities of adjacent airbags overlap in the length direction of the belt, the projections of the adjacent airbags on the belt overlap. For example, the airbag may include a first end and a second end opposite to each other in the length direction of the belt, and the first end of one of the two adjacent airbags is in a stacked or layered positional relationship with the second end of the other airbag, and the projections of the two on the belt overlap.

[0012] At this time, since each airbag can be inflated independently and there is overlap between adjacent airbags, sufficient expansion height can be achieved at different positions within the coverage area of ​​the airbag group, and sufficient pressure can be provided to press against the skin of the user's wrist. There is almost no dead angle for pressing against the user's wrist within the detection area of ​​the airbag group. When the wrist wearable device is worn on the user's wrist, the length direction of the band body can correspond to the circumference of the user's wrist, and multiple airbags are arranged along the circumference of the user's wrist. Therefore, corresponding to the wrist wearing scenarios of different wrist circumferences, the airbag group can flexibly inflate the airbag located above the radial artery or ulnar artery on the user's wrist according to the specific wearing situation to detect the user's pressure pulse wave, so that the wrist wearable device and its wristband can adapt to different wrist circumferences and improve the detection accuracy of the wrist wearable device.

[0013] In some possible implementations, in two adjacent airbags, a stacking length of the two airbags is greater than or equal to half of a length of one of the airbags.

[0014] In this implementation, the overlapping lengths of adjacent airbags are designed to make the overlapping area of ​​adjacent airbags reasonable, so that there is no dead angle of pressure in the coverage area of ​​the airbag group. It can be understood that the airbag is usually made of thinner materials, and the thickness of the airbag wall is a small value for the space of the air cavity in the airbag, which can be ignored. In the embodiment of the present application, the overlap of the airbags can be approximated as the overlap of the air cavities of the airbags.

[0015] In some possible implementations, the airbag group includes a base layer and multiple film layers, each of which is fixedly connected to the base layer, the multiple film layers are arranged along the length direction of the belt body, two adjacent film layers partially overlap in the length direction of the belt body, and each film layer is connected to another adjacent film layer; the air cavity of the airbag is formed by the base layer and the film layer.

[0016] In this implementation, the airbag group is formed by a base layer and multiple film layers, and the thickness of the film layer and the base layer can be thinner, so that the overall thickness of the airbag group is thinner, and the thickness of the wristband is thinner, and the user's wearing experience is better.

[0017] In some possible implementations, the airbag includes a first type of sub-airbag and a second type of sub-airbag, the air cavity of the first type of sub-airbag is surrounded by a base layer and a film layer; the air cavity of the second type of sub-airbag is surrounded by a base layer and two adjacent film layers.

[0018] In this implementation, multiple film layers can be stacked in sequence to form multiple air bags. Stacking multiple film layers in sequence is relatively simple during production, and during use, the force conditions of the multiple air bags are relatively consistent.

[0019] In some possible implementations, the airbag includes a first type of sub-airbag and a third type of sub-airbag, the air cavity of the first type of sub-airbag is surrounded by a base layer and a film layer; the air cavity of the third type of sub-airbag is surrounded by a base layer and three adjacent film layers.

[0020] In this implementation, multiple film layers can be alternately stacked to form multiple air bags. When in use, the forces on the multiple air bags are relatively symmetrical, and the air bags are relatively uniform when inflated.

[0021] In some possible implementations, in two adjacent airbags, a stacking length of the two airbags is greater than or equal to one third of a length of one of the airbags.

[0022] In this implementation, the overlapping length of adjacent airbags can be smaller, so that the airbag group can cover a larger area; because the airbags can be arranged along the length direction of the belt body, the airbag group can cover a longer length.

[0023] In some possible implementations, the airbag group includes a base layer and a plurality of capsule layers, each capsule layer includes a bottom wall and a side wall, and the side wall of each capsule layer is fixedly connected to the bottom wall of the capsule layer and the base layer;

[0024] Multiple capsule layers are arranged along the length direction of the belt body, two adjacent capsule layers partially overlap in the length direction of the belt body, and each capsule layer is connected to another adjacent capsule layer; the air cavity of the airbag is formed by the base layer, the bottom wall of the capsule layer and the side wall of the capsule layer.

[0025] In this implementation, since the bladder layer has a side wall, the expansion direction of the airbag can be approximately perpendicular to the base layer, and the airbag's pressure direction on the user's wrist is more accurate, which facilitates the wrist wearable device to detect the pressure pulse wave. In addition, there is overlap between adjacent airbags, so there is almost no detection blind spot in the airbag group, which makes it easy to achieve accurate detection.

[0026] In some possible implementations, among the multiple airbags, the length of the longest airbag is less than or equal to twice the length of the shortest airbag.

[0027] In this implementation, the sizes of multiple airbags are similar, which is more convenient during production. When the wrist wearable device detects the pressure pulse wave through different airbags, the pressure exerted by the airbag group on the user's wrist is the same or similar, providing a good user experience.

[0028] In some possible implementations, the airbag group also includes an air path layer, which is fixed to the side of the base layer facing away from the air cavity, and an air passage is formed between the air path layer and the base layer. The multiple air passages are independent of each other and connect the multiple air cavities one by one.

[0029] In this implementation, the air path layer and the base layer together form an air channel, so that the air cavity of each airbag can be independently inflated and deflated. The thickness of the air path layer is relatively thin, so that the airbag group does not need to be provided with additional pipelines, and the thickness of the airbag group is relatively thin, so that the thickness of the wristband is relatively thin, and the user's wearing experience is better.

[0030] The air path layer may be located on the side of the base layer facing the belt body. The air path layer may be a planar film structure. In addition, the air path layer may be fixedly connected to the base layer, for example, the air path layer and the base layer may be sealed by bonding.

[0031] In some possible implementations, the middle part of the airbag group is fixedly connected to the belt body, and after the air cavity of any airbag in the airbag group is inflated, the two end edges of the airbag group move relative to the middle part of the airbag group; the airbag group also includes an elastic member, which connects the two end edges of the airbag group and the belt body.

[0032] In this implementation, after the air cavity of any airbag in the airbag group is inflated, the two end edges of the airbag group move slightly relative to the middle of the airbag group due to the expansion of the airbag. At this time, the elastic part can be stretched. When the airbag is deflated, the elastic force of the elastic part can reset the airbag group to prevent the position deviation of the airbag group from affecting the detection of the pressure pulse wave.

[0033] In some possible implementations, the elastic member is made of silicone.

[0034] In this implementation, the silicone is elastic and flexible, and is comfortable for users to wear.

[0035] In some possible implementations, the airbag assembly further includes a fixing member that fixes the belt body and the airbag, the fixing member protrudes from an outer surface of the belt body that faces away from the airbag, and the fixing member contacts the outer surface of the belt body.

[0036] In this implementation, the connection between the protruding fixing part and the belt body is more reliable, and the protruding fixing part can be used to mark the position of the airbag. The user can judge the position of the airbag by touching the fixing part, which is easy for the user to identify.

[0037] The fixing member may include a fixing column and a fixing cap. The fixing column may be embedded in the belt body and fixedly connected to the airbag assembly, the fixing cap is connected to the fixing column, the fixing cap protrudes from the fixing column, the width of the fixing cap may be greater than the fixing column, and the fixing cap may contact the outer surface of the belt body, so that the fixing cap may be pressed against the outer surface of the belt body when subjected to force, thereby improving the firmness of the fixing member. In addition, the fixing member may also serve as an identification, used to indicate the position of the airbag relative to it, and the user may directly determine the position of the airbag by observing or touching the fixing member without setting an identification area.

[0038] In some possible implementations, the number of the fixing members is the same as the number of the airbags, and each airbag is fixed to the belt body by a fixing member.

[0039] In this implementation, the position of the fixing part can correspond to the position of the airbag one by one, so that each airbag is fixed on the belt body, and the position of each airbag is accurate. When the fixing cap protrudes from the outer surface of the belt body, the user can directly determine the position of each airbag by observing or touching the fixing part without setting a marking area, which can facilitate the user to determine the position of each airbag, so that the corresponding airbag located above the radial artery or ulnar artery is inflated and the pressure pulse wave detection is performed, thereby making the detection more accurate.

[0040] In some possible implementations, the length of the airbag is in the range of 3 cm to 5 cm; and / or the width of the airbag group is less than or equal to 3 cm; and / or the number of the airbags is in the range of 2 to 5.

[0041] In this implementation, by setting the size of the airbag group, it can be easily combined with the belt body, and the size of the formed wristband is reasonable, making it more comfortable for the user to wear the wrist wearable device.

[0042] In some possible implementations, the wristband further includes a pressure member, which is installed on the band body and located between the band body and the airbag group, and is used to drive the airbag group to move in a direction away from the band body.

[0043] In this implementation, by setting a pressure member, the airbag group is pushed as a whole, which is equivalent to providing a stable support force for the airbag group. For each airbag, the support force received by each airbag when inflated is balanced and stable. At this time, the wrist wearable device ensures the stability of the support for the airbag group, making the pressure pulse wave signal during detection more stable and accurate, and can use a single airbag with a smaller area to accurately compress the user's wrist, providing a better user experience.

[0044] Wherein, the pressurized member may include a pressurized airbag and a support plate. The support plate is located between the pressurized airbag and the airbag group; in the length direction of the belt body, the rigidity of the support plate is greater than the rigidity of the belt body. Wherein, the pressurized airbag and the support plate may both extend along the length direction of the belt body, and the pressurized airbag may be connected to an air pump in the device body, and the air pump supplies air to the pressurized airbag. Wherein, the length of the support plate may be close to the length of the airbag group, and the position of the support plate may be set corresponding to the position of the airbag group to support the airbag group. In this embodiment, by pressurizing the pressurized airbag, the support plate is pressed against the airbag group to provide a more stable support environment for the airbag group. It can be understood that after the pressurized airbag is inflated, it is not necessary to press the user's wrist tightly, and the airbag of the airbag group can be inflated, and the airbag can be used to press the user's wrist.

[0045] In some possible implementations, the pressurizing member includes a pressurizing airbag and a support plate, and the support plate is located between the pressurizing airbag and the airbag group; in the length direction of the belt body, the rigidity of the support plate is greater than the rigidity of the belt body.

[0046] In this implementation, the pressurized airbag is pressurized so that the support plate presses against the airbag group to provide a more stable support environment for the airbag group. It is understandable that the pressurized airbag does not need to press the user's wrist tightly after being inflated, and the airbags of the airbag group can be inflated to press the user's wrist; the support plate is less likely to deform than the belt body and the airbag, and the support plate has better support performance.

[0047] Some possible implementations include a device body and a wristband provided by any of the above implementations, wherein the wristband is connected to the device body.

[0048] In this implementation, by setting the structure of the wristband, the wrist-worn wearable device can adapt to different wrist circumferences, improve the detection accuracy of the wrist-worn wearable device, and also improve the adaptability of the wrist-worn wearable device to different usage scenarios.

[0049] In some possible implementations, the wrist-worn wearable device also includes an air pump, multiple air valves, and multiple air tubes. The air pump is located in the device body, one end of the multiple air tubes is connected to the air pump, and the other end is connected to the air cavities of the multiple air bags one by one. The air pump is used to inflate the air bags through the trachea, and the multiple air valves are arranged one by one on the multiple air tubes, and the air valves are used to connect or disconnect the trachea.

[0050] In this implementation, multiple tracheas are connected through an air pump, and the tracheas are connected and disconnected through air valves corresponding to the tracheas, so as to facilitate ventilation of each trachea, thereby independently inflating and deflating each airbag.

[0051] In some possible implementations, the wrist-worn wearable device further includes a processor and a pressure sensor, the processor is located in the device body, the pressure sensor is disposed in the trachea, and the processor is electrically connected to the pressure sensor.

[0052] In this implementation, a pressure sensor and a processor are provided to receive and process a signal collected by the pressure sensor.

[0053] In some possible implementations, the multiple airbags include a first airbag and a second airbag, the wrist-worn device is used to detect the pressure pulse wave of the radial artery through the first airbag, and the wrist-worn device is used to detect the pressure pulse wave of the ulnar artery through the second airbag.

[0054] In this implementation, the wrist-worn wearable device inflates the first airbag and the second airbag so that the first airbag pressurizes the radial artery and the second airbag pressurizes the ulnar artery, respectively obtaining two independent pressure pulse wave signals. Blood pressure and other parameters are calculated based on the two independent pressure pulse waves, and signal fusion is performed to improve the accuracy of measurement of blood pressure and other parameters.

[0055] In some possible implementations, the multiple airbags further include a third airbag, where the third airbag is located between the first airbag and the second airbag, and the wrist-worn device is used to detect movement of the flexor tendon of the digitorum through the third airbag.

[0056] In this implementation, the third airbag is used to apply pressure to the flexor tendon of the digitorum to facilitate the recognition of hand movements, so that the wrist-worn wearable device can be used as a human-computer interaction device to interact with the movements of other devices, making the wrist-worn wearable device more functional. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 It is a blood pressure measuring watch based on the oscillometric principle;

[0058] Figure 2A is a schematic diagram of the structure of a wrist wearable device provided in an embodiment of the present application;

[0059] Figure 2B yes Figure 2A A schematic diagram of the structure of part of the wristband shown;

[0060] Figure 3 yes Figure 2A The structure schematic diagram of the airbag group shown in some embodiments;

[0061] Figure 4 yes Figure 3 The schematic diagram of the internal structure of the airbag assembly in some embodiments is shown;

[0062] Figure 5 yes Figure 3 The exploded structural diagram of the airbag assembly in some embodiments is shown;

[0063] Figure 6 yes Figure 3 The schematic diagram of the structure of the airbag assembly shown in some use states;

[0064] Figure 7 yes Figure 3 The exploded schematic diagram of the partial structure of the airbag assembly in some embodiments;

[0065] Figure 8 yes Figure 3 A schematic diagram of the internal structure of a portion of the structure of the airbag assembly shown;

[0066] Fig. 9 yes Figure 2A Schematic diagram of the wrist-worn device in some usage states;

[0067] Fig.10 yes Figure 2A A schematic diagram of a partial structure of the wristband in some embodiments shown;

[0068] Fig.11 yes Fig. 9 A schematic diagram of the structure of a portion of the wristband shown in some usage states;

[0069] Fig.12 yes Figure 2A A schematic diagram of the structure of some usage states of the partial structure of the wristband shown;

[0070] Fig.13 yes Figure 2A A schematic diagram of the structure of some usage states of the partial structure of the wristband shown;

[0071] Fig.14A yes Figure 2A The schematic diagram of the structure of the airbag assembly in other embodiments is shown;

[0072] Fig. 14B yes Fig.14A A schematic diagram of the internal structure of the airbag assembly shown;

[0073] Fig.15 yes Fig.14A The exploded structural diagram of the airbag assembly in some embodiments is shown;

[0074] Fig.16 yes Fig.14A The schematic diagram of the structure of the airbag assembly shown in some use states;

[0075] Fig.17 yes Figure 2A The schematic diagram of the structure of the airbag assembly shown in some usage states;

[0076] Fig.18 is a schematic diagram of the structure of the wrist wearable device provided in the embodiment of the present application in other embodiments;

[0077] Fig.19 yes Figure 2A A schematic diagram of a partial structure of the wrist-wearable device shown;

[0078] Fig. 20 is a schematic diagram of a control method for a wrist wearable device provided in an embodiment of the present application in some embodiments;

[0079] Fig.21 yes Fig. 20 The pressure detection waveform diagram of the control method in some embodiments shown;

[0080] Fig. 22 yes Figure 2A A schematic diagram of the wrist-worn wearable device in a usage state is shown;

[0081] Fig.23 yes Fig. 22 A schematic diagram of a control method of a wrist-worn wearable device in some embodiments;

[0082] Fig.24 yes Fig. 22 Schematic diagram of the usage status of some embodiments of the wrist wearable device shown. DETAILED DESCRIPTION

[0083] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0084] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. The term "and / or" is a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone.

[0085] In the description of this specification, the description with reference to the terms "embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0086] See also Figure 1 , Figure 1 The present invention is a blood pressure measuring watch 100 based on the oscillometric principle. The blood pressure measuring watch 100 is provided with a long air bag 1001 on the strap, and the long air bag 1001 is used to surround the user's wrist, and the user's wrist is pressurized by linearly increasing the air pressure in the long air bag 1001, so that the blood pressure measuring watch 100 can obtain the pressure pulse wave of the user's arterial blood vessels.

[0087] See also Figure 1 The cross section of the mid-wrist shows that the wrist has two bones, the radius and the ulna; the wrist also has multiple flexor tendons, which are responsible for the movement of the fingers; the wrist also has two arteries, the radial artery and the ulnar artery. The radial artery is close to the radius, and the ulnar artery is close to the ulna. In addition, the radial artery is closer to the thumb of the palm on the wrist, and the ulnar artery is closer to the little finger of the palm on the wrist.

[0088] The blood pressure measuring watch 100 is worn on the wrist and fixed around the wrist, and the long air bag 1001 is inflated to compress the skin at the radial artery and / or the ulnar artery, thereby detecting the pressure pulse wave of the radial artery and / or the ulnar artery. At this time, since the long air bag 1001 almost covers the entire wrist in the circumferential direction of the wrist, the long air bag 1001 applies pressure to the entire wrist of the user when inflated, resulting in a poor detection experience for the user.

[0089] Please refer to Figure 2A and Figure 2B , Figure 2A is a schematic diagram of the structure of a wrist wearable device 200 provided in an embodiment of the present application. Figure 2B yes Figure 2A A schematic structural diagram of a partial structure of the wristband 20 is shown.

[0090] The wrist wearable device 200 provided in the embodiment of the present application can be a bracelet, a watch or other electronic device for wrist wear, which can be used for daily monitoring of cardiovascular health status. Among them, the specific implementation scheme of the present application can be applied in many scenarios, such as daily detection of health indicators such as heart rate and blood pressure, prediction of hypertension risk, daily screening of high-risk groups, cardiovascular risk assessment, etc. Figure 2A The wrist wearable device 200 in the illustrated embodiment is exemplified by taking a watch as an example.

[0091] In some embodiments, the wrist-wearable device 200 may include a device body 10 and a wristband 20 .

[0092] Among them, the device body 10 is usually worn on the dorsal side of the wrist, that is, the side away from the radial artery and the ulnar artery. The device body 10 can be a smart device, which can have the function of using software, such as time display, voice call and other functions, and can also have functions such as motion detection and health detection. Exemplarily, the device body 10 may include a battery, a control motherboard, a control chip, and an electronic screen, etc. The embodiment of the present application does not strictly limit the number and type of components included in the device body 10. It can be understood that when the wrist-type wearable device 200 is a watch, the device body 10 can be a watch body. The device body 10 can have two ends, and the two ends are used to connect with the wristband 20.

[0093] Among them, the wristband 20 is connected to the two ends of the device body 10, and can form a ring with the device body 10 to wear the wrist-worn device 200 on the user's wrist. The wristband 20 can be flexible to fit the shape of the wrist. The wristband 20 can be fixedly connected to the device body 10, or it can be detachably connected to the device body 10 to facilitate the replacement of different wristbands 20. In some examples, the wristband 20 can be a single belt-like structure, one end of the wristband 20 is connected to one end of the device body 10, and the other end of the wristband 20 can be passed through the other end of the device body 10, and after folding back, it is connected to other positions of the wristband 20 to adapt to different wrist circumferences.

[0094] In some embodiments, the wristband 20 may include a band body 1, an airbag group 2, and an air circuit group 3. The band body 1 is used to wear the wrist-type wearable device 200 on the user's wrist. The airbag group 2 is used to apply pressure to the user's wrist to facilitate the detection of pressure pulse waves. The air circuit group 3 is used to ventilate the airbag group 2 so that the airbag group 2 expands as needed.

[0095] Exemplarily, both the airbag group 2 and the air circuit group 3 can be fixed on the belt body 1. The airbag group 2 can be fixed on the inner side of the belt body 1, that is, the side of the belt body 1 facing the user's wrist, so that the belt body 1 can provide support for the airbag group 2 when the airbag group 2 expands. One end of the air circuit group 3 is connected to the airbag group 2, and the other end can be connected to the air pump 30, so that the air pump 30 can inflate the airbag group 2 through the air circuit group 3. The air pump 30 can be set in the device body 10, or the air pump 30 can also be located outside the device body 10, for example, it can be fixed on the belt body 1. The airbag group 2 and the air circuit group 3 can be structural parts of an integrated design or structural parts of a split design, and the embodiments of the present application do not strictly limit this.

[0096] Exemplarily, both the airbag group 2 and the airway group 3 can extend along the length direction of the belt 1. The length direction of the airbag group 2 can be the same as the length direction of the belt 1, and the length direction of the airbag group 2 is the X direction. The width direction of the airbag group 2 can be the same as the width direction of the belt 1, and the width direction of the airbag group 2 is the Y direction. The thickness direction of the airbag group 2 can be the same as the direction of the belt 1, and the thickness direction of the airbag group 2 is the Z direction; wherein the X direction, the Y direction, and the Z direction are perpendicular to each other. The airbag group 2 can extend to the middle of the belt 1, for example, the airbag group 2 can extend to the position corresponding to the radial artery, or to the position corresponding to the ulnar artery, or to the position that can cover both the radial artery and the ulnar artery; when the wrist wearable device 200 is worn, the airbag group 2 is easy to press against the radial artery and / or the ulnar artery of the user, so that the wrist wearable device 200 can accurately detect the pressure pulse wave.

[0097] In some embodiments, the airbag group 2 may include a plurality of airbags 21. The plurality of airbags 21 may be fixedly connected to each other, so that the airbag group 2 forms an integrated structural member.

[0098] In some examples, each airbag 21 has an air cavity 211, and the airbag 21 expands in a direction away from the belt body 1 after the air cavity 211 is inflated, that is, it can expand in the direction of the user's wrist (i.e., the Z direction). Among them, the main expansion direction of the airbag 21 can be a direction away from the belt body 1, and can be a direction perpendicular to or nearly perpendicular to the belt body 1. Among them, the air cavities 211 of multiple airbags 21 are independent of each other. At this time, each air cavity 211 can be inflated independently, one airbag 21 can be inflated, or multiple airbags 21 can be inflated at the same time. It can be understood that in some embodiments, when the airbag 21 is not inflated, there may be no gas in its air cavity 211, so that the walls of the airbag 21 fit each other. In other embodiments, when the airbag 21 is not inflated, there may be a small amount of gas in its air cavity 211, so that there is a gap between the walls of the airbag 21. This embodiment is exemplified by the gap in the wall of the airbag 21.

[0099] In this embodiment, since the airbag group 2 includes multiple airbags 21, the airbag group 2 can have a larger detection area, and each airbag 21 can be independently inflated and expanded. The expanded airbag 21 independently presses against the user's skin, so that the airbag group 2 has a larger detection range and a smaller compression area.

[0100] In some examples, the plurality of airbags 21 are arranged along the length direction of the belt body 1. In this case, the direction in which the plurality of airbags 21 are arranged is the length direction of the airbag group 2, and the length direction of the airbag group 2 is consistent with the length direction of the belt body 1. The air cavities 211 of two adjacent airbags 21 partially overlap in the length direction of the belt body 1. When the air cavities 211 of adjacent airbags 21 overlap in the length direction of the belt body 1, the projections of the adjacent airbags 21 on the belt body 1 overlap. For example, the airbags 21 may include a first end and a second end opposite to each other in the length direction of the belt body 1, and the first end of one of the two adjacent airbags 21 is in a stacked or layered positional relationship with the second end of the other airbag 21, and the projections of the two on the belt body 1 overlap.

[0101] In this embodiment, since each airbag 21 can be inflated independently and there is overlap between adjacent airbags 21, sufficient expansion height can be achieved at different positions within the coverage area of ​​the airbag group 2, and sufficient pressure can be provided to press against the skin of the user's wrist. There is almost no dead angle for pressing against the user's wrist within the detection area of ​​the airbag group 2. When the wrist-type wearable device 200 is worn on the user's wrist, the length direction of the band 1 can correspond to the circumference of the user's wrist, and multiple airbags 21 are arranged along the circumference of the user's wrist. Therefore, corresponding to the wrist wearing scenarios of different wrist circumferences, the airbag group 2 can flexibly inflate the airbag 21 located above the radial artery or ulnar artery on the user's wrist according to the specific wearing situation to detect the user's pressure pulse wave, so that the wrist-type wearable device 200 and its wristband 20 can adapt to different wrist circumferences and improve the detection accuracy of the wrist-type wearable device 200.

[0102] Exemplarily, in two adjacent airbags 21, the overlapping length of the two airbags 21 is greater than or equal to one half or one third of the length of one of the airbags 21. The overlapping length of the two airbags 21 refers to the length of the overlapping area of ​​the two airbags 21 in the length direction of the airbag group 2. The lengths of the two adjacent airbags 21 can be the same or different, and the overlapping length of the two airbags 21 can be greater than or equal to one half or one third of the length of any one of the airbags 21.

[0103] In this embodiment, the overlapping lengths of adjacent airbags 21 are designed to make the overlapping area of ​​adjacent airbags 21 reasonable, so that there is no dead angle of pressure in the coverage area of ​​the airbag group 2. It can be understood that the airbag 21 is usually formed of a thinner material, and the thickness of the wall of the airbag 21 is a small value for the space of the air cavity 211 in the airbag 21, which can be ignored. In this embodiment of the application, the overlap of the airbag 21 can be approximated as the overlap of the air cavity 211 of the airbag 21.

[0104] In some embodiments, the length of the airbag 21 may be in the range of 3 cm to 5 cm. The number of airbags 21 may be in the range of 2 to 5. In the embodiment of the present application, the range of "A to B" refers to a range including two endpoint values ​​"A" and "B". The length of the airbag group 2 depends on the length of the airbag 21, the number of airbags 21, and the overlapping length of adjacent airbags 21, which is not strictly limited in this embodiment. The width of the airbag group 2 may be less than or equal to 3 cm.

[0105] In this embodiment, by setting the size of the airbag group 2, it can be easily combined with the belt body 1, and the size of the formed wristband 20 is reasonable, so that the user is more comfortable when wearing the wrist wearable device 200.

[0106] In some examples, the sizes of the multiple airbags 21 of the airbag group 2 may be the same or different. When the sizes of the multiple airbags 21 are different, the length of the longest airbag 21 is less than or equal to twice the length of the shortest airbag 21 .

[0107] In this embodiment, the sizes of multiple airbags 21 are similar, which is more convenient during production. When the wrist-worn wearable device 200 detects the pressure pulse wave through different airbags 21, the pressure exerted by the airbag group 2 on the user's wrist is the same or similar, and the user experience is good.

[0108] Please refer to Figures 3 to 6 , Figure 3 yes Figure 2A The structure diagram of the airbag group 2 in some embodiments is shown. Figure 4 yes Figure 3 The internal structure diagram of the airbag group 2 in some embodiments is shown. Figure 5 yes Figure 3 The schematic diagram of the exploded structure of the airbag group 2 in some embodiments is shown. Figure 6 yes Figure 3 The structure diagram of the airbag assembly 2 in some usage states is shown. Figure 5 The figure shows a usage state when the airbag group 2 has three airbags 21 and the three airbags 21 are inflated independently.

[0109] In some embodiments, the airbag group 2 may include a base layer 22 and a plurality of film layers 23. The airbag group 2 is formed by the base layer 22 and the plurality of film layers 23, and the thickness of the film layer 23 and the base layer 22 may be thinner, so that the overall thickness of the airbag group 2 is thinner, and the thickness of the wristband 20 is thinner, and the user has a better wearing experience.

[0110] In some examples, the base layer 22 is used to carry the film layer 23, and the plurality of film layers 23 can be fixed to the side of the base layer 22 facing away from the film layer 23. The base layer 22 can be connected to the belt body 1 (such as Figure 2A The airbag assembly 2 is fixedly connected to the belt body 1. The base layer 22 can extend along the length direction of the belt body 1, and the base layer 22 can be a single-layer structural member.

[0111] In some examples, each film layer 23 is fixedly connected to the base layer 22. For example, the film layer 23 can be fixedly connected to the base layer 22 by a hot pressing process, so that the film layer 23 and the base layer 22 form an integrated structure. In this case, the production of the airbag group 2 is relatively simple, and the overall structural strength of the airbag group 2 is high and the force-bearing performance is good. Alternatively, the film layer 23 can also be fixedly connected to the base layer 22 by a bonding process, and the embodiment of the present application does not strictly limit the fixing process of the film layer 23 and the base layer 22. Among them, the film layer 23 can be the same material as the base layer 22 to facilitate the connection between the film layer 23 and the base layer 22; in addition, the materials of the film layer 23 and the base layer 22 are not strictly limited in this embodiment.

[0112] Among them, the number of film layers 23 corresponds to the number of airbags 21. One film layer 23 can be used to form the main structure of an airbag 21 with the base layer 22, but an airbag 21 is not limited to being formed by the base layer 22 and the film layer 23, and this embodiment does not impose strict restrictions on this. Exemplarily, the film layer 23 can be a flat film, so that the thickness of the airbag 21 is small, and the overall thickness of the airbag group 2 is small. When the airbag group 2 is not inflated, the height of the protrusion relative to the belt body 1 toward the user's wrist is low, and the user is highly comfortable when wearing the wrist wearable device 200. Among them, the shape of the film layer 23 can be a rectangle, a rounded rectangle, or other approximate rectangular shapes, and this embodiment does not impose strict restrictions on this. In other embodiments, the shape of the film layer 23 can also be an elliptical or other shaped structure. This embodiment uses the film layer 23 as a rectangle for exemplary description.

[0113] In some examples, a plurality of film layers 23 are arranged along the length direction of the airbag group 2 and also along the length direction of the belt body 1. Two adjacent film layers 23 partially overlap in the length direction of the belt body 1, and each film layer 23 is connected to another adjacent film layer 23, and the air cavity 211 of the airbag 21 is surrounded by the base layer 22 and the film layer 23. The length direction of the film layer 23 may be parallel to the length direction of the airbag group 2 and the length direction of the belt body 1 (X direction), and the width direction of the film layer 23 is parallel to the width direction of the airbag group 2 and the width direction of the belt body 1 (Y direction). In this embodiment, since the adjacent film layers 23 overlap in the length direction of the belt body 1, the air cavity 211 of the airbag 21 is formed by the base layer 22 and the film layer 23, so that the air cavities 211 of the adjacent airbags 21 also partially overlap.

[0114] In some examples, adjacent film layers 23 can be connected to each other, so the connection between adjacent film layers 23 can be fixedly connected by a heat pressing process; in other embodiments, they can also be connected by bonding. Among them, multiple film layers 23 can be made of the same material to facilitate the fixed connection between adjacent film layers 23.

[0115] Exemplarily, the edge of the film layer 23 is used to connect with the adjacent film layer 23 or the base layer 22. In this embodiment, when the film layer 23 is heat-pressed with the adjacent film layer 23 or the base layer 22, the edge of the film layer 23 can be heat-pressed, and most of the film layer 23 can form the side wall of the air cavity 211. Among them, a connection area 231 is formed at the edge of the film layer 23, and the connection area 231 can form a complete ring. The part within the connection area 231 of the film layer 23 can be an expansion area 232, which can be deformed after the airbag 21 is inflated. The embodiment of the present application does not strictly limit the division position of the connection area 231 and the expansion area 232 of the film layer 23.

[0116] In some embodiments, the length of the airbag 21 mainly depends on the length of the film layer 23. In this case, the sizes of the multiple film layers 23 can be the same or different. When the sizes of the film layers 23 are different, the length of the longest film layer 23 is less than or equal to twice the length of the shortest film layer 23. It can be understood that the length direction of the film layer 23 is the same as the length direction of the belt body 1. The sizes of the multiple film layers 23 are close, so that the sizes of the multiple airbags 21 are close, and the user experience is better when detecting the pressure pulse wave.

[0117] In some embodiments, the air cavity 211 of each airbag 21 can be connected to the air passage 251 outside the air cavity 211, and different airbags 21 are connected to different air passages 251. For example, a hole can be opened in the base layer 22 so that the gas in the air passage 251 can enter the air cavity 211 of the airbag 21, so that each airbag 21 can be inflated and deflated independently. In addition, when the airbag 21 is inflated, the highest point of the airbag 21 is usually located in the middle of the airbag 21, and the lowest point of the airbag 21 is located at the edge of the airbag 21. At this time, in two adjacent airbags 21, the stacking length of the two airbags 21 is greater than or equal to half the length of one of the airbags 21. At this time, the overlapping lengths of adjacent airbags 21 of the airbag group 2 are relatively long. For the edge of a certain airbag 21, its adjacent airbag 21 can also achieve a higher expansion height, thereby being able to provide sufficient resistance force, so that there are almost no detection blind spots in the detection area covered by the airbag group 2, making it easy for the wrist-worn device 200 to adapt to different wrist circumferences and easy to achieve accurate detection.

[0118] In some embodiments, the airbag 21 may include a first type of sub-airbag and a second type of sub-airbag. The air cavity 211 of the first type of sub-airbag is surrounded by a base layer 22 and a film layer 23 ; the air cavity 211 of the second type of sub-airbag is surrounded by a base layer 22 and two adjacent film layers 23 .

[0119] In some examples, multiple film layers 23 can be stacked in sequence to form multiple airbags 21. Stacking multiple film layers 23 in sequence is relatively simple during production, and when in use, the force conditions of the multiple airbags 21 are relatively consistent. Figure 5 and Figure 6 As shown, there are three airbags 21, and the number of air cavities 211 of the airbags 21 is also three, and the three airbags 21 are airbag 211a, airbag 212a, and airbag 213a; there are also three film layers 23, and the three film layers 23 are film layer 231a, film layer 232a, and film layer 233a. The shapes of film layers 231a, film layers 232a, and film layers 233a can be the same, and can all be rounded rectangles; the sizes of film layers 231a, film layers 232a, and film layers 233a can also be the same, and the sizes of the multiple air cavities 211 formed thereby are also substantially the same.

[0120] The edge of the film layer 231a is fixed to the base layer 22 and is sealed to the base layer 22. At this time, the film layer 231a is fixedly connected to the base layer 22, and the air cavity 211 of the airbag 211a is surrounded by the base layer 22 and the film layer 231a. The airbag 211a is a first-type sub-airbag.

[0121] Among them, the film layer 232a is adjacent to the film layer 231a, and the film layer 232a is partially stacked on the film layer 231a. When fixing the film layer 232a, part of the edge of the film layer 232a can be fixed on the base layer 22, and the other part can be fixed on the outer surface of the film layer 231a. At this time, one end of the film layer 232a in the length direction is fixedly connected to the film layer 231a, and the other end of the film layer 232a is fixedly connected to the base layer 22; then the air cavity 211 of the airbag 212a is surrounded by the base layer 22, part of the structure of the film layer 231a and the film layer 232a, and the airbag 212a is a second-type sub-airbag.

[0122] Among them, the film layer 233a is adjacent to the film layer 232a, and the film layer 233a is partially stacked on the film layer 232a. When fixing the film layer 233a, part of the edge of the film layer 233a can be fixed on the base layer 22, and the other part can be fixed on the outer surface of the film layer 232a. At this time, one end of the film layer 233a in the length direction is fixedly connected to the film layer 232a, and the other end of the film layer 233a is fixedly connected to the base layer 22; then the air cavity 211 of the airbag 213a is surrounded by the base layer 22, part of the structure of the film layer 232a and the film layer 233a, and the airbag 213a is a second-type sub-airbag.

[0123] It is understandable that the base layer 22 and the film layer 23 may not have stretchability or may have slight stretchability to maintain the stability of the air pressure when the airbag 21 is inflated. In addition, when the sub-airbag 21 is inflated, it may drive the film layer 23 connected thereto to move slightly.

[0124] Please refer to Figure 3 , Figures 7 and 8 , Figure 7 yes Figure 3 The exploded schematic diagram of the partial structure of the airbag group 2 in some embodiments is shown. Figure 8 yes Figure 3 A schematic diagram of the internal structure of a partial structure of the airbag assembly 2 is shown.

[0125] In some embodiments, the airbag assembly 2 further includes an air path layer 25, which is fixed to the side of the base layer 22 facing away from the air cavity 211, and an air passage 251 is formed between the air path layer 25 and the base layer 22, and the plurality of air passages 251 are independent of each other and are connected to the plurality of air cavities 211 (such as Figure 4As shown). In this embodiment, the air path layer 25 and the base layer 22 together form an air passage 251, so that the air cavity 211 of each airbag 21 can be independently inflated and deflated. The thickness of the air path layer 25 is relatively thin, so that the airbag group 2 does not need to be provided with additional pipelines, and the thickness of the airbag group 2 is relatively thin, so that the thickness of the wristband 20 is relatively thin, and the user has a better wearing experience. Among them, the air path layer 25 can be located on the base layer 22 toward the belt body 1 (such as Figure 2A The air path layer 25 may be a planar film structure. In addition, the air path layer 25 may be fixedly connected to the base layer 22, for example, the air path layer 25 and the base layer 22 may be sealed by bonding.

[0126] In some examples, the gas path layer 25 may include multiple parts. Exemplarily, the gas path layer 25 may include multiple sub-gas path layers 252. One sub-gas path layer 252 is fixedly connected to the base layer 22 and forms an air passage 251. One air passage 251 is connected to an airbag 21 for ventilating the airbag 21. Exemplarily, multiple sub-gas path layers 252 may extend along the length direction of the base layer 22 (i.e., the X direction), and multiple sub-gas path layers 252 may be staggered in the width direction of the base layer 22 (i.e., the Y direction) to ventilate each airbag 21 independently.

[0127] In this embodiment, multiple air path layers 25 are provided separately, which can save materials, and the thickness of the part of the base layer 22 not connected to the air path layer 25 remains unchanged, and the air path layer 25 has little effect on the expansion performance of the base layer 22.

[0128] In other embodiments, the air path layer 25 may be an integrated structural member. The air path layer 25 may be partially fixedly connected to the base layer 22; a gap is left between the partial structure and the base layer 22, thereby forming an air passage 251. The integrated air path layer 25 is easy to connect to the base layer 22, which can simplify the process steps of forming the air passage 251, and the area of ​​the fixed connection between the air path layer 25 and the base layer 22 is large, the connection strength is high, the sealing is good, and the reliability of the air passage 251 is improved.

[0129] Exemplarily, air holes 221 may be provided on the base layer 22 , and the air holes 221 are used to connect the air passage 251 and the air cavity 211 of the airbag 21 ; the number of the air holes 221 may correspond one-to-one to the number of the air cavity 211 of the airbag 21 ; the positions of the air holes 221 may be set corresponding to the ends of the air path layer 25 .

[0130] It is understandable that the gas can flow through the vent 251 and enter the air cavity 211 of the airbag 21 from the air hole 221. The vent 251 will expand when inflated to form a tubular structure; when pressure relief is required, the gas can flow out of the vent 251. The gas in the vent 251 can come from the outside of the airbag assembly 2, such as from the air pump 30 (e.g., Figure 2AAs shown), at this time, the air channel 251 can be connected to the air pump 30 of the device body 10, and this embodiment does not impose strict restrictions on this.

[0131] Please refer to Figure 2A and Fig. 9 , Fig. 9 yes Figure 2A Schematic diagrams of the wrist-worn device 200 in some usage states are shown.

[0132] In some embodiments, the outer surface of the belt body 1 may further include an identification area 11. The identification area 11 is located on the outer surface of the belt body 1 away from the airbag group 2. The position of the identification area 11 may correspond to the position of the airbag 21, and is used to identify the position of each airbag 21 in the wristband 20, so that the user can determine the position of each airbag 21, so that the user can select the airbag 21 located above the radial artery or the ulnar artery to inflate and perform pressure pulse wave detection, thereby improving the detection accuracy of the wrist wearable device 200.

[0133] See also Figure 10 to Figure 11 , Fig.10 yes Figure 2A The schematic diagram of the partial structure of the wristband 20 in some embodiments is shown. Fig.11 yes Fig. 9 The schematic diagram of the structure of the wristband 20 in some usage states is shown.

[0134] In some embodiments, the airbag group 2 may further include an elastic member 26. The middle portion of the airbag group 2 is fixedly connected to the belt body 1, and the elastic member 26 connects the two end edges of the airbag group 2 to the belt body 1. The two end edges of the airbag group 2 are arranged in the length direction of the airbag group 2.

[0135] The middle portion of the airbag group 2 may be a region between the center of the first airbag 21 and the center of the last airbag 21 of the airbag group 2 in the length direction thereof.

[0136] In this embodiment, after the air cavity 211 of any airbag 21 in the airbag group 2 is inflated, due to the expansion of the airbag 21, the two end edges of the airbag group 2 move slightly relative to the middle of the airbag group 2. At this time, the elastic member 26 can be stretched. When the airbag 21 is deflated, due to the elastic force of the elastic member 26, the airbag group 2 can be reset to prevent the position deviation of the airbag group 2 from affecting the detection of the pressure pulse wave.

[0137] Among them, two elastic members 26 can be provided, one at each end of the length direction of the airbag group 2, and the elastic member 26 can be fixedly connected to both the airbag group 2 and the belt body 1. The material of the elastic member 26 can be silicone, which is elastic and flexible, and the user is comfortable when wearing it.

[0138] In some embodiments, the airbag group 2 may further include a fixing member 27. The fixing member 27 is fixedly connected to the belt body 1 and the airbag 21, and the fixing member 27 is fixedly connected to the middle part of the airbag group 2 and is fixedly connected to the belt body 1. Exemplarily, the number of airbags 21 is three, the airbag 21 located in the middle is fixedly connected to the belt body 1 through the fixing member 27, and the edges of the airbags 21 located at both ends are connected to the belt body 1 through the elastic member 26. Alternatively, in some other embodiments, the number of airbags 21 is four, any one of the two airbags 21 located in the middle or the connection position of the two airbags 21 is fixedly connected to the belt body 1 through the fixing member 27, and the edges of the airbags 21 located at both ends are connected to the belt body 1 through the elastic member 26.

[0139] In some embodiments, the fixing member 27 may be exposed on the side of the belt body 1 facing away from the airbag group 2, and used as a mark of the middle position of the airbag group 2; the elastic member 26 may be exposed on the side of the belt body 1 facing away from the airbag group 2, and used as a mark of the edge position of the airbag group 2. The user can determine the positional relationship between the middle position and the edge position of the airbag group 2 and the position to be tested (such as the radial artery or the ulnar artery) through the fixing member 27 and the elastic member 26, and select a specific airbag 21 for pressure pulse wave detection. In this case, the outer surface of the belt body 1 may not be provided with a marking area.

[0140] Please refer to Figure 2A and Fig.12 , Fig.12 yes Figure 2A The schematic diagram of the structure of some usage states of the partial structure of the wristband 20 is shown. Fig.12 Part of the structure of the wristband 20 of the embodiment may include Fig.11 The following mainly describes the differences between the wristband 20 and the wristband 20 of the embodiment, and the same technical contents of the wristband 20 and the wristband 20 are not described in detail. Fig.12 The embodiment shown and Fig.11 The embodiment shown differs in the arrangement of the elastic element 26 .

[0141] In some embodiments, the wristband 20 may further include some elastic members 26 for connecting at least some of the airbags 21 of the airbag group 2 with the belt body 1. For example, the middle of the airbag group 2 is fixedly connected to the belt body 1, and both ends of the airbag group 2 are connected to the belt body 1 through the elastic member 26. In addition, some of the airbags 21 in the plurality of airbags 21 may be connected to the belt body 1 through the elastic member 26, so that when the airbag group 2 is inflated, the airbags 21 will not be displaced too much, and when the airbag group 2 is deflated, each airbag 21 can be reset in a timely and accurate manner.

[0142] For example, the number of airbags 21 is 3, the middle airbag 21 is fixedly connected to the belt body 1 through the fixing member 27, the two end edges of the airbag group 2 are connected to the belt body 1 through the elastic member 26, and the middle part of each airbag 21 at both ends is connected to the belt body 1 through the elastic member 26. The fixing member 27 ensures that the overall position of the airbag group 2 on the belt body 1 is accurate, and the elastic member 26 ensures that each airbag 21 is accurately positioned on the belt body 1.

[0143] In some embodiments, the fixing member 27 may be exposed on the side of the belt body 1 facing away from the airbag group 2, and used as a mark for the middle airbag of the airbag group 2; the elastic members 26 adjacent to both sides of the fixing member 27 may be exposed on the side of the belt body 1 facing away from the airbag group 2, and used as marks for the airbags at both ends of the airbag group 2. The user may select a specific airbag 21 for pressure pulse wave detection by judging the positional relationship between the fixing member 27 and the elastic member 26 of the airbag group 2 and the position to be detected (e.g., the radial artery or the ulnar artery). In this case, the outer surface of the belt body 1 may not be provided with a marking area.

[0144] Please refer to Figure 2A and Fig.13 , Fig.13 yes Figure 2A The schematic diagram of the structure of some usage states of the partial structure of the wristband 20 is shown. Fig.13 Part of the structure of the wristband 20 of the embodiment may include Fig. 9 The following mainly describes the differences between the wristband 20 and the wristband 20 of the embodiment, and the same technical contents of the wristband 20 and the wristband 20 are not described in detail. Fig.13 The embodiment shown and Fig. 9 The embodiment shown differs in the arrangement of the fixing element 27 .

[0145] In some embodiments, the fixing member 27 is fixedly connected to the belt body 1 and the airbag 21, and the fixing member 27 protrudes from the outer surface of the belt body 1 facing away from the airbag 21, and the fixing member 27 is in contact with the outer surface of the belt body 1. In this case, the connection between the protruding fixing member 27 and the belt body 1 is more reliable, and the protruding fixing member 27 can be used to mark the position of the airbag 21. The user can determine the position of the airbag 21 by touching the fixing member 27, which is easy for the user to identify.

[0146] For example, the fixing member 27 may include a fixing column 271 and a fixing cap 272. The fixing column 271 may be embedded in the belt body 1 and fixedly connected to the airbag group 2, the fixing cap 272 may be connected to the fixing column 271, the fixing cap 272 may protrude from the fixing column 271, the width of the fixing cap 272 may be greater than the fixing column 271, and the fixing cap 272 may contact the outer surface of the belt body 1, so that the fixing cap 272 may be pressed against the outer surface of the belt body 1 when a force is applied, thereby improving the firmness of the fixing member 27. In addition, the fixing member 27 may also serve as an identification, used to indicate the position of the airbag 21 relative thereto, and the user may directly determine the position of the airbag 21 by observing or touching the fixing member 27 without setting an identification area.

[0147] In some examples, the number of fixing members 27 may be consistent with the number of airbags 21, and the position of the fixing members 27 corresponds to the position of the airbags 21 one by one, so that each airbag 21 is fixed on the belt body 1, and the position of each airbag 21 is accurate. When the fixing cap 272 protrudes from the outer surface of the belt body 1, the user can directly determine the position of each airbag 21 by observing or touching the fixing member 27 without setting an identification area, which can facilitate the user to determine the position of each airbag 21, so that the corresponding airbag 21 located above the radial artery or ulnar artery is inflated and the pressure pulse wave detection is performed, thereby making the detection more accurate.

[0148] When the fixing member 27 fixes the airbags 21 at both ends of the airbag group 2 and the belt body 1, there is a certain distance between the positions where the airbags 21 at both ends are fixed by the fixing member 27 and the edge of the airbag group 2, so that the airbag group 2 has a suitable deformation area when being inflated. At this time, the edge of the airbag group 2 can still be connected to the belt body 1 through the elastic member 26.

[0149] In other examples, the number of fixing members 27 may be less than the number of airbags 21, and some of the airbags 21 in the airbag group 2 are connected to the belt body 1 through the fixing members 27, and the other part of the airbags 21 are connected to the belt body 1 through the elastic members 26, and this part of the elastic members 26 may also be exposed or protrude from the outer surface of the belt body 1. In this embodiment, the position of each airbag 21 can be determined by observing or touching the fixing members 27 and the elastic members 26, without setting a marking area, so that the user can easily determine the position of each airbag 21, so that the corresponding airbag 21 located above the radial artery or the ulnar artery is inflated and the pressure pulse wave detection is performed, so that the detection is more accurate.

[0150] See also FIG. 14A to FIG. 16 , Fig.14A yes Figure 2A The schematic diagram of the structure of the airbag group 2 in other embodiments is shown. Fig. 14B yes Fig.14A The internal structure diagram of the airbag group 2 is shown. Fig.15 yes Fig.14AThe schematic diagram of the exploded structure of the airbag group 2 in some embodiments is shown. Fig.16 yes Fig.14A The structure diagram of the airbag assembly 2 in some usage states is shown. Fig.14A The airbag group 2 of the embodiment may include Figure 3 Most of the technical features of the airbag group 2 of the embodiment are mainly explained below. The differences between the two are explained below, and most of the technical contents that are the same between the two are not repeated.

[0151] In one embodiment, Fig.14A The embodiment shown and Figure 3 The difference between the illustrated embodiments lies in the arrangement of multiple film layers 23. In some examples, the airbag 21 may include a first type of sub-airbag and a third type of sub-airbag, wherein the air cavity 211 of the first type of sub-airbag is surrounded by a base layer 22 and a film layer 23; and the air cavity 211 of the third type of sub-airbag is surrounded by a base layer 22 and three adjacent film layers 23.

[0152] In some examples, multiple film layers 23 can be stacked alternately to form multiple airbags 21. When in use, the forces on the multiple airbags 21 are relatively symmetrical, and the airbags 21 are relatively uniform when inflated. For example, the number of airbags 21 is three, and the number of air cavities 211 of the airbags 21 is also three, and the three airbags 21 are respectively airbag 211b, airbag 212b, and airbag 213b; the number of film layers 23 is also three, and the three film layers 23 are respectively film layer 231b, film layer 232b, and film layer 233b. The shapes of film layers 231b, film layers 232b, and film layers 233b can be the same, and can all be rounded rectangles; the sizes of film layers 231b, film layers 232b, and film layers 233b can also be the same, and the sizes of the multiple air cavities 211 formed thereby are also substantially the same.

[0153] The edge of the film layer 231b is fixed to the base layer 22 and is sealed to the base layer 22. At this time, the film layer 231b is fixedly connected to the base layer 22 as a whole, and the air cavity 211 of the airbag 211b is surrounded by the base layer 22 and the film layer 231b. The airbag 211b is a first-class sub-airbag.

[0154] The film layer 233b and the film layer 231b are arranged at intervals, and the edge of the film layer 233b is fixed to the base layer 22 and sealed to the base layer 22. At this time, the film layer 233b is fixedly connected to the base layer 22 as a whole, and the air cavity 211 of the airbag 213b is surrounded by the base layer 22 and the film layer 233b. The airbag 213b is a first-type sub-airbag.

[0155] Among them, the film layer 232b is adjacent to the film layer 231b and the film layer 233b at the same time. The film layer 232b is stacked on the film layer 231b and the film layer 233b at the same time, and the film layer 232b is partially stacked on the base layer; at this time, of the two ends of the film layer 232b in the length direction, one end is fixedly connected to the film layer 231b, and the other end is fixedly connected to the film layer 232b, and the structure between the two ends is fixedly connected to the base layer 22; then the air cavity 211 of the airbag 212b is surrounded by the base layer 22, the film layer 231b, the film layer 232b and the film layer 233b, and the airbag 212b is a third-type sub-airbag.

[0156] Please refer to Figure 2A and Fig.17 , Fig.17 yes Figure 2A The structure diagram of the airbag assembly 2 in some usage states is shown. Fig.17 The airbag group 2 of the embodiment may include Figure 3 Most of the technical features of the airbag group 2 of the embodiment are mainly explained below. The differences between the two are explained below, and most of the technical contents that are the same between the two are not repeated.

[0157] In some embodiments, Fig.17 The embodiment shown and Figure 3 The embodiment shown differs in the structural arrangement of the airbag 21 .

[0158] In some embodiments, the airbag group 2 includes a base layer 22 and a plurality of balloon layers 28. Each balloon layer 28 is fixedly connected to the base layer 22.

[0159] The base layer 22 may be fixedly connected to the belt body 1 , may extend along the length direction of the belt body 1 , and may have only one layer. The base layer 22 is used to carry the capsule layer 28 .

[0160] Each of the bladder layers 28 includes a bottom wall 281 and a side wall 282. The side wall 282 of the bladder layer 28 is fixedly connected to the bottom wall 281 of the bladder layer 28, and the side wall 282 of the bladder layer 28 is circumferentially arranged around the bottom wall 281 of the bladder layer 28. The side wall 282 of the bladder layer 28 is also fixed to the base layer 22. The air cavity 211 of the airbag 21 is formed by the base layer 22, the bottom wall 281 of the bladder layer 28, and the side wall 282 of the bladder layer 28. It is understood that the air cavity 211 of the airbag 21 can be connected to the air passage 251 (such as the air passage 251) outside the air cavity 211. Figure 8 As shown), for example, a hole can be opened in the base layer 22 to allow gas to enter the air cavity 211 and expand the airbag 21.

[0161] Exemplarily, the side wall 282 of the bladder layer 28 may be a foldable structure, which can be expanded and retracted after being subjected to force, so that when the air cavity 211 is inflated, the gas drives the side wall 282 of the bladder layer 28 to expand, thereby achieving the expansion of the airbag 21. The expansion direction of the side wall 282 of the bladder layer 28 may be a direction away from the base layer 22 (i.e., the Z direction).

[0162] In addition, the number of the bladder layers 28 can be multiple, and the multiple bladder layers 28 are arranged along the length direction of the belt body 1, and two adjacent bladder layers 28 partially overlap in the length direction of the belt body 1, and each bladder layer 28 is connected to another adjacent bladder layer 28. It can be understood that, among two adjacent airbags 21, the side wall 282 of one airbag 21 overlaps the side wall 282 and the bottom wall 281 of the other airbag 21, and the air cavity 211 of the airbag 21 is surrounded by the side wall 282 and the bottom wall 281 of its bladder layer 28, and the side wall 282 and the bottom wall 281 of the bladder layer 28 of the adjacent airbag 21. At this time, among the two adjacent airbags 21, the stacking length of the two airbags 21 can be greater than or equal to one third of the length of one of the airbags 21; that is, the stacking length of the two adjacent bladder layers 28 can be greater than or equal to one third of the length of one of the bladder layers 28. Since the expansion degree of the side wall 282 of the bladder layer 28 is basically the same, the expansion degree of each part in the bottom wall 281 of the bladder layer 28 is also relatively close, and the overlapping length of adjacent airbags 21 can be smaller, so that the airbag group 2 can cover a larger area; since the airbags 21 can be arranged along the length direction of the belt body 1, the airbag group 2 can cover a longer length.

[0163] In this embodiment, since the bladder layer 28 has a side wall 282, the expansion direction of the airbag 21 can be approximately perpendicular to the direction of the base layer 22, and the pressure direction of the airbag 21 on the user's wrist is more accurate, which facilitates the wrist wearable device 200 to detect the pressure pulse wave. In addition, there is overlap between adjacent airbags 21, so there is almost no detection blind spot in the airbag group 2, which makes it easy to achieve accurate detection.

[0164] See also Fig.18 , Fig.18 Schematic diagram of the structure of the wrist wearable device 200 provided in the embodiment of the present application in other embodiments. Fig.18 Part of the structure of the wrist wearable device 200 of the embodiment may include Figure 2A The following mainly describes the differences between the wrist wearable device 200 and the majority of the technical features of the partial structure of the embodiment, and the majority of the same technical contents of the two are not repeated. Fig.18 The embodiment shown and Figure 2A The embodiment shown differs in the arrangement of the wristband 20 .

[0165] In some embodiments, the wristband 20 may further include a pressure member 4. The pressure member 4 is installed on the belt body 1, and the pressure member 4 is located between the belt body 1 and the airbag group 2. The pressure member 4 is used to drive the airbag group 2 to move away from the belt body 1. In this embodiment, by providing the pressure member 4, the airbag group 2 is pushed as a whole, which is equivalent to providing a stable supporting force for the airbag group 2. For each airbag 21, the supporting force received by each airbag 21 when inflated is balanced and stable. At this time, the wrist-type wearable device 200 ensures the stability of the support for the airbag group 2, so that the signal of the pressure pulse wave during detection is more stable and accurate, and a single airbag 21 with a smaller area can be used to accurately compress the user's wrist, and the user experience is better.

[0166] Exemplarily, the pressurizing member 4 may include a pressurized airbag 41 and a support plate 42. The support plate 42 is located between the pressurized airbag 41 and the airbag group 2; in the length direction of the belt body 1, the rigidity of the support plate 42 is greater than the rigidity of the belt body 1. Wherein, the pressurized airbag 41 and the support plate 42 may both extend along the length direction of the belt body 1, and the pressurized airbag 41 may be connected to the air pump 30 in the device body 10, and the air pump 30 supplies air to the pressurized airbag 41. Wherein, the length of the support plate 42 may be close to the length of the airbag group 2, and the position of the support plate 42 may be set corresponding to the position of the airbag group 2 to support the airbag group 2. In this embodiment, by pressurizing the pressurized airbag 41, the support plate 42 is pressed against the airbag group 2 to provide a more stable support environment for the airbag group 2. It can be understood that after the pressurized airbag 41 is inflated, it is not necessary to press the user's wrist tightly, and the airbag 21 of the airbag group 2 may be inflated, and the airbag 21 may be used to press the user's wrist.

[0167] The support plate 42 is less likely to deform than the belt body 1 and the airbag 21, and has better supporting performance. For example, the support plate 42 can be a metal sheet, and the specific implementation of the support plate 42 is not strictly limited in the embodiment of the present application.

[0168] Please refer to Figure 2A , Figure 4 and Fig.19 , Fig.19 yes Figure 2A A schematic diagram of a partial structure of the wrist-worn device 200 is shown.

[0169] In some embodiments, the wrist wearable device 200 may further include an air pump 30, a plurality of air valves 40, and a plurality of air tubes 50. The air pump 30 is located in the device body 10, one end of the plurality of air tubes 50 is connected to the air pump 30, and the other end is connected to the air cavity 211 of the plurality of air bags 21 one by one. The air pump 30 is used to inflate the air bags 21 through the air tubes 50, and the plurality of air valves 40 are provided one by one on the plurality of air tubes 50, and the air valves 40 are used to connect or disconnect the air tubes 50. At this time, the plurality of air tubes 50 are connected through one air pump 30, and the air tubes 50 are connected and disconnected through the air valves 40 corresponding to the air tubes 50, so as to facilitate ventilation of each air tube 50, thereby independently inflating and deflating each air bag 21.

[0170] Exemplarily, a plurality of air tubes 50 may be formed in the air circuit group 3 of the wristband 20. In some examples, the air tube 50 may be a pipe, which is installed on the belt body 1 and is connected to the air passage 251 (such as the air bag group 2) of the air bag group 2 during installation. Figure 8 2 and 3) are connected one by one to connect the air pump 30 and the airbag 21 of the airbag group 2. In some other examples, the airbag group 2 can be integrally formed with the air circuit group 3, that is, the base layer 22 and the air circuit layer 25 (as shown in FIG. Figure 8 As shown in the figure, the air circuit group 3 is extended to form the air circuit group 3. At this time, the air pipe 50 is formed by bonding the base layer 22 and the air circuit layer 25. At this time, the production of the air circuit layer 25 is relatively simple, and the connection between the air circuit group 3 and the airbag group 2 is also more stable and reliable.

[0171] Exemplarily, the wrist-worn wearable device 200 may further include a pressure sensor, which may be arranged corresponding to the trachea 50 . The wrist-worn wearable device 200 detects the pressure and pressure changes in the trachea 50 to detect the pressure pulse wave.

[0172] Exemplarily, the air pump 30 may be located in the device body 10, in which case the air pump 30 belongs to the device body 10, and the device body 10 may also include components such as a battery 60 and a processor 70. The air pump 30 may be electrically connected to the battery 60 so that the battery 60 supplies power to the air pump 30. The air pump 30 may also be electrically connected to the processor 70, which is used to control the air pump 30. The processor 70 may be electrically connected to the battery 60 to manage the battery 60. The processor 70 may be electrically connected to the pressure sensor to receive and process the signal collected by the pressure sensor. The processor 70 may be an integrated chip, which is not strictly limited in this embodiment.

[0173] For example, the air valve 40 may adopt a solenoid valve structure. The air valves 40 corresponding to the multiple air pipes 50 may be electrically connected to the battery 60 and the processor 70, so as to control the opening and closing of the air valve 40 to connect or disconnect the air pipe 50, so as to realize independent inflation and deflation of each air bag 21 of the air bag group 2, so as to facilitate the wrist wearable device 200 to detect the pressure pulse wave.

[0174] See also Fig. 9 , Figure 20 to Figure 21 , Fig. 20 is a schematic diagram of a control method for a wrist wearable device provided in an embodiment of the present application in some embodiments, Fig.21 yes Fig. 20 The control method shown is a pressure detection waveform diagram in some embodiments.

[0175] In some embodiments, the control method of the wrist wearable device may include:

[0176] In response to the first event, setting an optimal operating airbag;

[0177] The pressure pulse wave is collected through the optimal working air bag.

[0178] The first event may include detecting that the wrist wearable device is worn for the first time. Alternatively, the first event may include detecting that the wrist wearable device is in a worn state, and a change in the wearing state occurs and the quality of the detection signal of the pressure pulse wave decreases. The best working airbag may be the airbag closest to the radial artery or the ulnar artery.

[0179] In this embodiment, the wrist-worn wearable device can automatically set the optimal working airbag, so that before detecting the user's pressure pulse wave, the wrist-worn wearable device can find the optimal working airbag and apply pressure to the user's wrist through the optimal working airbag to obtain a more accurate pressure pulse wave, thereby improving the accuracy of detection by the wrist-worn wearable device.

[0180] Exemplarily, the wrist-worn wearable device may use an automatic search method to set the best working airbag. Exemplarily, the method for setting the best working airbag may include: sequentially collecting multiple pressure pulse wave signals through multiple airbags, and confirming that the airbag corresponding to the pressure pulse wave with the best quality among the multiple pressure pulse wave signals is the best working airbag.

[0181] The following is an example of an airbag group having three airbags. The airbag group includes airbag 1, airbag 2, and airbag 3. In this case, the number of solenoid valves is also 3, namely, solenoid valve 1, solenoid valve 2, and solenoid valve 3; solenoid valve 1 controls airbag 1, solenoid valve 2 controls airbag 2, and solenoid valve 3 controls airbag 3.

[0182] The process of setting the optimal working airbag includes:

[0183] Step S202, collecting the pressure pulse wave signal 1a through airbag 1. For example, the electromagnetic valve 1 may be opened to inflate the airbag 1, and the airbag 1 may be deflated after collecting the pressure pulse wave signal 1a, and the electromagnetic valve 1 may be closed.

[0184] Step S204, collecting the pressure pulse wave signal 2a through the airbag 2. The solenoid valve 2 may be opened to inflate the airbag 2, and then the airbag 2 is deflated after collecting the pressure pulse wave signal 2a, and the solenoid valve 2 is closed.

[0185] Step S206, collecting the pressure pulse wave signal 3a through the airbag 3. Opening the solenoid valve 3, inflating the airbag 3, and deflating the airbag after collecting the pressure pulse wave signal 3a.

[0186] Step S208, evaluate the quality of pressure pulse wave signal 1a, pressure pulse wave signal 2a and pressure pulse wave signal 3a, and determine the airbag corresponding to the pressure pulse wave signal with the best quality as the best working airbag. The above three pressure pulse wave signals can be calculated by the signal quality module of the chip.

[0187] Step S210, memorize the current best working airbag.

[0188] For example, the automatic search setting mode may take from 10 seconds to 30 seconds, see Fig.21 , the signal quality of pressure pulse wave signal 3a is the best, and the corresponding airbag 3 can be determined as the best working airbag.

[0189] This embodiment selects the best working airbag by automatic search, ensuring that the wrist wearable device continuously collects the best pressure pulse wave signal, making the measurement and evaluation of blood pressure or other parameters more accurate.

[0190] In some embodiments, the wrist wearable device may also prompt to set the best working airbag in response to the first event. At this time, the user may choose to set the best working airbag by the wrist wearable device through automatic search or manual entry.

[0191] The automatic search method is described above. The manual input method can be: after the user puts on the wrist wearable device, first touch the radial artery with the hand, and then enter the number of the airbag closest to the radial artery (see Fig. 9 As shown, the airbag number closest to the radial artery is 3) and is input into the wrist wearable device to complete the selection and setting of the best working airbag.

[0192] See also Fig. 22 , Fig. 22 yes Figure 2A The wrist-worn device 200 is shown as a schematic diagram in a usage state.

[0193] In some embodiments, the plurality of airbags 21 of the airbag group 2 may include a first airbag 214 and a second airbag 215. The first airbag 214 may be used to compress the radial artery so that the wrist wearable device 200 detects the pressure pulse wave of the radial artery through the first airbag 214; the second airbag 215 may be used to compress the ulnar artery so that the wrist wearable device 200 detects the pulse wave of the ulnar artery through the second airbag 215.

[0194] In this embodiment, the wrist wearable device 200 inflates the first airbag 214 and the second airbag 215 so that the first airbag 214 pressurizes the radial artery and the second airbag 215 pressurizes the ulnar artery, respectively obtaining two independent pressure pulse wave signals, and calculates parameters such as blood pressure based on the two independent pressure pulse waves, and performs signal fusion to improve the accuracy of measurement of parameters such as blood pressure.

[0195] See also Figure 22 to Figure 23 , Fig.23 yes Fig. 22 FIG. 1 is a schematic diagram of a control method of a wrist-worn wearable device 200 in some embodiments.

[0196] In some embodiments, the control method of the wrist wearable device 200 includes:

[0197] In response to the second event, adjusting the wristband 20 to be worn tightly;

[0198] Detect physiological indicators of health characteristics.

[0199] The second event may include the wrist wearable device 200 actively initiating health characteristic detection for the user, that is, the user passively detects the physiological indicators of the health characteristics of the body. Alternatively, the second event may also include the physiological indicators of the health characteristics of the body that the user can actively detect, that is, the user can actively detect the health characteristics when necessary.

[0200] Among them, the health characteristic detection is used to detect the user's physiological indicators, which are not limited to blood pressure, heart rate, electrocardiogram, etc. obtained by pressure pulse wave, and can also include physiological indicators such as blood oxygen and body temperature. It can be understood that the wrist wearable device 200 can include sensors for detecting blood oxygen and body temperature, and can also include sensors for detecting indicators such as blood pressure. For example, the sensor can include a photoplethysmo graphic (ppg) module, a temperature sensor, an electrode, etc.; this embodiment does not impose strict restrictions on this.

[0201] In this embodiment, by adjusting the wristband 20 of the wrist-worn wearable device 200 to a tight wearing state, the device body 10 and the wristband 20 are made to fit tightly against the user's wrist, so that the sensor of the wrist-worn wearable device 200 can obtain more accurate data, making it easier for the wrist-worn wearable device 200 to detect the physiological indicators of the user's health characteristics.

[0202] In some embodiments, the process of adjusting the wristband 20 to a tight fit includes:

[0203] S302, inflating the airbag 21 of the airbag group 2;

[0204] S304, determining whether the pressure of the airbag 1 of the airbag group 2 reaches a set threshold; if so, the adjustment is completed, otherwise, continuing to execute step S302.

[0205] In this embodiment, the wrist wearable device 200 can inflate some of the airbags 21 of the airbag group 2 according to the detection requirements to expand the airbag group so that the wrist wearable device 200 is tightly worn on the user's wrist. In addition, the wrist wearable device 200 can set the expansion degree of the airbag 21 by setting the pressure threshold of the airbag 21 to set the tightness of the wrist wearable device 200, so that the wrist wearable device 200 can obtain accurate physiological indicators and improve the user's experience.

[0206] For example, in the process of adjusting the wristband 20 to be tightly worn in the aforementioned step, the wrist-worn device 200 may select the first airbag 214 and the second airbag 215 for execution. For example:

[0207] The air pump is controlled to inflate the first airbag 214 and the second airbag 215. The first airbag 214 and the second airbag 215 can be inflated by the air pump and the electromagnetic valves corresponding to the first airbag 214 and the second airbag 215.

[0208] It is determined whether the air pressure of the first airbag 214 and the second airbag 215 reaches a set threshold value, and if so, the inflation is stopped, otherwise, the previous step is continued until the set threshold value is reached. The set threshold value is used to enable the first airbag 214 and the second airbag 215 to press the wristband 20 tightly against the wrist of the user.

[0209] For example, when the user actively measures (i.e., actively detects), the wrist wearable device 200 controls the air pressure of the first airbag 214 and the second airbag 215 of the airbag group 2, thereby adjusting the tightness of the wrist wearable device 200 when worn, so that the wrist wearable device 200 can collect high-quality physiological signals, obtain accurate physiological indicators, and improve the accuracy of health characteristic assessment.

[0210] In this embodiment, the active detection scenario may include the user operating the wrist wearable device 200 before a meal to detect physiological indicators of health characteristics; the active detection scenario may also include the user operating the wrist wearable device 200 before and after exercise to continuously detect health characteristic parameters in a short period of time.

[0211] Exemplarily, when the wrist-type wearable device 200 actively measures (i.e., passive detection). The wrist-type wearable device 200 can put the wristband 20 in a tightly worn state through the above steps, and can intermittently pressurize the first airbag 214 and the second airbag 215 to reduce the relative movement between the wrist-type wearable device 200 and the wrist, so that various sensors can collect stable and accurate signals to ensure continuous detection of the user's physiological indicators. Among them, the user may be in an active state during the day or at night. For example, during the day, the user's wrist is in an active state for a long time such as walking and typing; the watch may be worn loosely, and it is difficult to collect effective signals. Through the passive detection of this example, the influence of wrist movement on health characteristic detection can be weakened, and the accuracy of health characteristic detection can be improved. In addition, through the passive detection of this example, the degree of interference of the ppg signal by movement can be reduced. At the same time, the pressure pulse wave signal and the ppg signal can be jointly calculated by the pressure pulse wave signal measured by the first airbag 214 and the second airbag 215 for heart health assessment, which can improve the output rate of the wrist-type wearable device 200 in the daytime scene.

[0212] In this example, the passive detection scenario may include the wrist-worn wearable device 200 adjusting the wristband 20 to a tight wearing state for detection according to the determined detection strategy and detection needs; for example, during a 24-hour continuous health detection process, when the wrist-worn wearable device 200 determines that the wristband 20 is worn too loosely or the wristband 20 is in motion, the wristband 20 can be adjusted to a tight wearing state for detection to improve the value output rate of the wrist-worn device 200.

[0213] In this embodiment, the tightness of the wrist wearable device 200 is adjusted by the first airbag 214 and the second airbag 215 to avoid pressurizing the flexor tendons of the wrist, reduce the interaction between the wristband 20 and the flexor tendons, ensure the collection of high-quality physiological signals, and improve the accuracy of active measurement and the output rate of passive measurement of the wrist wearable device 200.

[0214] See also Fig.24 , Fig.24 yes Fig. 22 Schematic diagram of the wrist-worn wearable device 200 in use status in some embodiments.

[0215] In some embodiments, the multiple airbags 21 of the airbag group 2 of the wrist wearable device 200 may also include a third airbag 216, which is located between the first airbag 214 and the second airbag 215, and the wrist wearable device 200 is used to detect the movement of the flexor tendon of the digitorum through the third airbag 216. Among them, the wrist wearable device 200 can inflate the third airbag 216 so that the third airbag 216 compresses the flexor tendon of the user's wrist. When the flexor tendon of the digitorum moves, the third airbag 216 will produce a pressure change, and the wrist wearable device 200 captures the flexor tendon action signal by detecting the pressure change of the third airbag 216. Among them, the wrist wearable device 200 can learn the signal patterns of different hand movements through an artificial intelligence algorithm, so as to determine the corresponding hand movement according to the captured action signal. At this time, the recognized hand movement can be used to interact with other devices, and other devices can be mobile phones, tablets, computers, headphones, smart screens, etc., which are not strictly limited in this embodiment.

[0216] In this embodiment, the third airbag 216 is used to pressurize the flexor tendon of the digitorum to facilitate the recognition of hand movements, so that the wrist-type wearable device 200 can be used as a human-computer interaction device to interact with the movements of other devices, making the wrist-type wearable device 200 more functional.

[0217] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other, and any combination of features in different embodiments is also within the protection scope of the present application. In other words, the multiple embodiments described above can also be arbitrarily combined according to actual needs.

[0218] It should be noted that all the above drawings are illustrative illustrations of the present application and do not represent the actual size of the product. Moreover, the size ratio relationship between the components in the drawings is not intended to limit the actual product of the present application.

[0219] The above are only some embodiments and implementation methods of the present application, and the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the technical scope disclosed in the present application can easily think of changes or substitutions, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A wristband, applied to a wrist wearable device, characterized in that: The wristband includes a band body and an airbag group, wherein the airbag group is fixed inside the band body; The airbag group includes a plurality of airbags, each of which has an air cavity. After the air cavity is inflated, the airbag expands in a direction away from the belt body, and the air cavities of the plurality of airbags are independent of each other. The plurality of airbags are arranged along the length direction of the belt body, and the air cavities of two adjacent airbags partially overlap in the length direction of the belt body.

2. The wristband according to claim 1, characterized in that: In two adjacent airbags, a stacking length of the two airbags is greater than or equal to half of a length of one of the airbags.

3. The wristband according to claim 1 or 2, characterized in that: The airbag group includes a base layer and multiple film layers, each of which is fixedly connected to the base layer, and the multiple film layers are arranged along the length direction of the belt body. Two adjacent film layers partially overlap in the length direction of the belt body, and each film layer is connected to another adjacent film layer; the air cavity of the airbag is formed by the base layer and the film layers.

4. The wristband according to claim 3, characterized in that: The airbag includes a first type of sub-airbags and a second type of sub-airbags. The air cavity of the first type of sub-airbags is surrounded by the base layer and one of the film layers; the air cavity of the second type of sub-airbags is surrounded by the base layer and two adjacent film layers.

5. The wristband according to claim 3, characterized in that: The airbag includes a first type of sub-airbags and a third type of sub-airbags. The air cavity of the first type of sub-airbags is surrounded by the base layer and one of the film layers; the air cavity of the third type of sub-airbags is surrounded by the base layer and three adjacent film layers.

6. The wristband according to claim 1, characterized in that: In two adjacent airbags, a stacking length of the two airbags is greater than or equal to one third of a length of one of the airbags.

7. The wristband according to claim 1 or 6, characterized in that: The airbag group includes a base layer and a plurality of bladder layers, each of the bladder layers includes a bottom wall and a side wall, and the side wall of each bladder layer is fixedly connected to the bottom wall of the bladder layer and the base layer; A plurality of capsule layers are arranged along the length direction of the belt body, two adjacent capsule layers partially overlap in the length direction of the belt body, and each capsule layer is connected to another adjacent capsule layer; The air cavity of the airbag is formed by the base layer, the bottom wall of the balloon layer and the side wall of the balloon layer.

8. The wristband according to any one of claims 1 to 7, characterized in that: Among the plurality of airbags, a length of the longest airbag is less than or equal to twice a length of the shortest airbag.

9. The wristband according to claim 3 or 7, characterized in that: The airbag group also includes an air path layer, which is fixed to the side of the base layer facing away from the air cavity. An air passage is formed between the air path layer and the base layer. The multiple air passages are independent of each other and connect the multiple air cavities one by one.

10. The wristband according to any one of claims 1 to 9, characterized in that: The middle part of the airbag group is fixedly connected to the belt body, and after the air cavity of any airbag in the airbag group is inflated, the two end edges of the airbag group move relative to the middle part of the airbag group; The airbag assembly further comprises an elastic member, and the elastic member connects the two end edges of the airbag assembly and the belt body.

11. The wristband according to claim 10, characterized in that: The elastic member is made of silicone.

12. The wristband according to any one of claims 1 to 11, characterized in that: The airbag assembly further includes a fixing member, which is used to fix the belt body and the airbag. The fixing member protrudes from the outer surface of the belt body facing away from the airbag, and the fixing member contacts the outer surface of the belt body.

13. The wristband according to claim 12, characterized in that: The number of the fixing members is the same as the number of the airbags, and each of the airbags is fixed to the belt body by the fixing member.

14. The wristband according to any one of claims 1 to 13, characterized in that: The length of the airbag is in the range of 3 cm to 5 cm; and / or, the width of the airbag group is less than or equal to 3 cm; And / or, the number of the airbags is in the range of 2 to 5.

15. The wristband according to any one of claims 1 to 14, characterized in that: The wristband further comprises a pressure member, which is installed on the band body and located between the band body and the airbag group, and is used to drive the airbag group to move in a direction away from the band body.

16. The wristband according to claim 15, characterized in that: The pressurizing member includes a pressurizing airbag and a support plate, wherein the support plate is located between the pressurizing airbag and the airbag group; In the length direction of the belt body, the rigidity of the support plate is greater than the rigidity of the belt body.

17. A wrist wearable device, characterized in that: It comprises a device body and a wristband as claimed in any one of claims 1 to 16, wherein the wristband is connected to the device body.

18. The wrist wearable device according to claim 17, characterized in that: The wrist wearable device also includes an air pump, multiple air valves and multiple air tubes. The air pump is located in the device body, one end of the multiple air tubes is connected to the air pump, and the other end is connected to the air cavities of the multiple air bags one by one. The air pump is used to inflate the air bags through the air tubes. The multiple air valves are arranged on the multiple air tubes one by one, and the air valves are used to connect or disconnect the air tubes.

19. The wrist wearable device according to claim 18, characterized in that: The wrist-type wearable device also includes a processor and a pressure sensor, wherein the processor is located in the device body, the pressure sensor is arranged in the trachea, and the processor is electrically connected to the pressure sensor.

20. The wrist wearable device according to any one of claims 17 to 19, characterized in that: The multiple airbags include a first airbag and a second airbag, the wrist wearable device is used to detect the pressure pulse wave of the radial artery through the first airbag, and the wrist wearable device is used to detect the pressure pulse wave of the ulnar artery through the second airbag.

21. The wrist wearable device according to claim 20, characterized in that: The multiple airbags also include a third airbag, which is located between the first airbag and the second airbag, and the wrist-worn device is used to detect the movement of the flexor tendon of the digitorum through the third airbag.

Images