Wearable health monitoring device

Abstract

The invention relates to the technical field of health monitoring equipment, and discloses a wearable health monitoring device, which comprises a monitoring part and a wearing part, the monitoring part comprises a shell, a film layer, a hydrophilic layer, an element mounting layer, a protective layer and a battery, the hydrophilic layer is provided with a liquid inlet, and the hydrophilic layer and the element mounting layer are both provided with pore channels. The wearable health monitoring device comprises a hydrophilic layer and an element mounting layer, a pore channel between the hydrophilic layer and the element mounting layer forms a micro-channel, the hydrophilic layer is provided with a liquid outlet, the element mounting layer is provided with a flexible piezoresistive sensor and a sweat detection element, and the micro-channel is provided with a capillary explosion valve. Sweat enters the pin end of the sweat detection element to be detected through cooperation of the liquid inlet and the micro-channel, and under the action of the capillary explosion valve, when the sweat secretion amount is low, the pin of the sweat detection element can be separated from the sweat through the capillary explosion valve, so that the sweat detection efficiency is improved. Therefore, the influence of a small amount of sweat on detection data of the sweat detection element is effectively avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of health monitoring devices, and specifically to a wearable health monitoring device. Background Art

[0002] A wearable health monitoring device is a device that can provide strong support for early warning of diseases, health status assessment, and sports fitness guidance by real-time monitoring of users' physiological indicators. The wearable health monitoring device can capture users' physiological parameters in real time, such as heart rate, blood pressure, body temperature, etc., so as to provide detailed and personalized health data analysis for users. Common wearable health monitoring devices include smart watches, fitness trackers, heart rate monitors, blood pressure monitors, etc.; In daily life, the wearer uses the monitored information to help the wearer understand their own body state. During the wearing process, the wearer will produce sweat. As one of the human metabolic products, the components of sweat contain rich physiological information. These information not only include the content of water, electrolytes, and trace elements, but also include the concentration changes of metabolites, hormones, and other bioactive substances. The specific manifestations of these substances in sweat are closely related to the physiological function state, nutritional status, and disease status of the human body. Although the existing wearable health monitoring mechanisms can detect the components of the wearer's sweat, when the sweat secretion rate of the wearer is low (there is sweat but less sweat), it is difficult for the sweat detection element in the wearable health monitoring device to collect enough sweat samples in a short time. Insufficient sample volume will lead to inaccurate test results on the one hand, and inaccurate test data is also likely to cause panic in the wearer. Therefore, we propose a wearable health monitoring device. Summary of the Invention

[0003] The purpose of the present invention is to provide a wearable health monitoring device to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A wearable health monitoring device includes a monitoring part and a wearing part. The monitoring part includes a housing and a film layer, a hydrophilic layer, a component installation layer, a protective layer, and a battery arranged in sequence from bottom to top. A plurality of liquid inlets are opened on the hydrophilic layer, and a plurality of channels corresponding to the liquid inlets one by one are opened on both the hydrophilic layer and the component installation layer. The channels between the hydrophilic layer and the component installation layer form a microchannel. A plurality of liquid outlets corresponding to and communicating with the microchannel are also arranged on the hydrophilic layer. Sweat enters the microchannel through the liquid inlet. A flexible piezoresistive sensor and a plurality of sweat detection elements corresponding to the microchannel one by one are installed on the component installation layer. The pin ends of the sweat detection elements are located in the microchannel, and a capillary bursting valve is also arranged in the microchannel.

[0005] Preferably, the microchannel includes an inlet region communicating with the liquid inlet, a detection region communicating with the liquid outlet, and an acceleration region for communicating the inlet region and the detection region. The apertures of the inlet region and the detection region are both larger than that of the acceleration region, and the capillary bursting valve is installed at the intersection of the detection region and the acceleration region.

[0006] Preferably, the aperture of the end of the inlet region communicating with the liquid inlet is larger than that of the end communicating with the acceleration region, and a plurality of protruding portions are embedded in the inner wall of the inlet region.

[0007] Preferably, the capillary bursting valve includes a base and a plurality of deformation portions, and the outer shape of the capillary bursting valve when closed is conical.

[0008] Preferably, an elastic patch is installed on the outer wall of one of the deformation portions. A plurality of flexibly arranged flexible membranes are embedded in the elastic patch. When the capillary bursting valve is closed, the flexible membranes contact the pin ends of the sweat detection element.

[0009] Preferably, the housing is provided with an air hole flow channel that sequentially penetrates through the protective layer, the component installation layer, and the hydrophilic layer. Both ends of the air hole flow channel are conical, and a drainage hole communicating with the air hole flow channel is provided in the component installation layer.

[0010] Preferably, the apertures at both ends of the air hole flow channel are larger than the aperture of the middle region, and the aperture of the middle region of the air hole flow channel is larger than the aperture of the drainage hole. The end of the drainage hole far from the air hole flow channel communicates with the pore channel on the component installation layer.

[0011] Preferably, the end of the drainage hole communicating with the pore channel is conical, and a hydrophobic coating is applied to the inner wall of the drainage hole.

[0012] Preferably, the wearing portion includes an annular band fixedly connected to the housing and a snap ring adapted to the annular band. A plurality of annular silica gel protrusions are provided on both the annular band and the snap ring, and a plurality of grooves adapted to the annular silica gel protrusions are provided on the snap ring.

[0013] Preferably, a chamber communicating with the outside is provided inside the annular silica gel protrusion.

[0014] Compared with the prior art, the beneficial effects of the present invention are: The present invention utilizes the cooperation of the liquid inlet and the microchannel to enable sweat to enter the pin end of the sweat detection element for detection. Under the action of the capillary bursting valve, when the sweat secretion amount is low, the capillary bursting valve can separate the pins of the sweat detection element from the sweat, preventing a small amount of sweat from directly contacting the pins of the sweat detection element, thereby effectively avoiding the influence of a small amount of sweat on the detection data of the sweat detection element. At the same time, the elastic patch and the flexible film on the capillary bursting valve are used to clean the pins of the sweat detection element, reducing the influence of residual sweat on the pins of the sweat detection element; The present invention utilizes a flexible piezoresistive sensor to continuously monitor the minute deformations on the skin surface and respond to the generation and flow of sweat in real time, ensuring the accuracy and reliability of the monitoring data. At the same time, the flexible piezoresistive sensor can synchronously measure the skin surface pressure change and the sweat secretion amount, and correlate the physiological state through an algorithm, thereby improving the accuracy of the monitoring data. Brief Description of the Drawings

[0015] Figure 1 Schematic diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the structure of the monitoring part of the present invention; Figure 3 Schematic diagram of the internal structure of the monitoring part of the present invention; Figure 4 Schematic diagram of the structure of the entry area and the acceleration area of the present invention; Figure 5 Schematic diagram of the structure of the acceleration area and the detection area of the present invention; Figure 6 Schematic diagram of the capillary bursting valve of the present invention; Figure 7 Schematic diagram of the capillary bursting valve and the elastic patch of the present invention; Figure 8 Schematic diagram of the elastic patch and the flexible film of the present invention; Figure 9 Schematic diagram of the structure of the wearing part of the present invention.

[0016] In the figure: 1. Monitoring part; 11. Outer shell; 12. Membrane layer; 13. Hydrophilic layer; 131. Liquid inlet; 132. Liquid outlet; 14. Component installation layer; 141. Flexible piezoresistive sensor; 142. Sweat detection element; 15. Protective layer; 16. Battery; 17. Channel; 18. Microchannel; 181. Protrusion; 182. Entry area; 183. Detection area; 184. Acceleration area; 19. Capillary bursting valve; 191. Substrate; 192. Deformation part; 193. Elastic patch; 194. Flexible film; 2. Wearing part; 21. Ring band; 22. Snap ring; 23. Annular silica gel protrusion; 24. Card slot; 25. Chamber; 3. Air hole channel; 31. Drainage hole. Detailed implementation mode

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] Please refer to Figures 1-9 , the present invention provides a technical solution: a wearable health monitoring device, including a monitoring part 1 and a wearing part 2. As shown in the attached Figure 2 figures, the monitoring part 1 includes a housing 11 and a film layer 12, a hydrophilic layer 13, a component installation layer 14, a protective layer 15 and a battery 16 arranged in sequence from bottom to top. The film layer 12 is a protective film. During specific wearing, the film layer 12 is torn off so that the hydrophilic layer 13 contacts the skin of the wearer. The hydrophilic layer 13 is a contact panel made of a flexible material with a hydrophilic coating on the surface. The component installation layer 14 is installed on the hydrophilic layer 13, and a flexible piezoresistive sensor 141 and a sweat detection element 142 are installed on the component installation layer 14. It should be noted that other components for monitoring the patient's vital signs are also installed on the component installation layer 14. Due to different monitoring types, different monitoring components are required, so the present invention does not describe them in detail. Subsequently, the protective layer 15 and the battery 16 are installed on the component installation layer 14 and fixed to the housing 11; Combined with the attached Figure 1 and the attached Figure 9 figures, as a further limitation in the present invention, the wearing part 2 includes a ring belt 21 fixedly connected to the housing 11 and a snap ring 22 adapted to the ring belt 21. A plurality of annular silica gel protrusions 23 are provided on both the ring belt 21 and the snap ring 22, and a plurality of card slots 24 adapted to the annular silica gel protrusions 23 are opened on the snap ring 22; a chamber 25 communicating with the outside is opened inside the annular silica gel protrusion 23. Thus, the wearer can use it according to needs. When wearing is required, it can be worn on the arm, wrist, etc. through the cooperation of the ring belt 21 and the snap ring 22, and the ring belt 21 and the snap ring 22 are made into an integral shape by the cooperation of the annular silica gel protrusion 23 and the card slot 24, and the annular silica gel protrusion 23 is made to closely adhere to the surface skin of the wearer through the chamber 25 inside the annular silica gel protrusion 23; when the wearer lies flat to monitor the heart or abdomen, the ring belt 21 and the snap ring 22 can be unfolded so that the ring belt 21 and the snap ring 22 contact the skin of the patient, and the annular silica gel protrusion 23 is made to closely adhere to the surface skin of the wearer through the chamber 25 inside the annular silica gel protrusion 23, so as to realize the monitoring of the physical health status.

[0019] Combined with the attached Figure 2 and the attached Figure 3As shown, a plurality of liquid inlets 131 are provided on the hydrophilic layer 13, and liquid outlets 132 corresponding to the liquid inlets 131 one by one are further provided on the hydrophilic layer 13. A plurality of channels 17 corresponding to the liquid inlets 131 one by one are provided on both the hydrophilic layer 13 and the component mounting layer 14. The channels 17 between the hydrophilic layer 13 and the component mounting layer 14 form a microchannel 18, that is, each liquid inlet 131 and the liquid outlet 132 are communicated through the microchannel 18. The sweat detection element 142 corresponds to the microchannel 18 one by one, and the pin end of the sweat detection element 142 is located in the microchannel 18, and a capillary bursting valve 19 is further provided in the microchannel 18. Combining the attached Figure 3 , attached Figure 6 and attached Figure 7 As shown, the capillary bursting valve 19 is conical. When the sweat is less, that is, when the wearer's sweat secretion rate is low, the pressure of a small amount of sweat cannot cause the capillary bursting valve 19 to open. Since a low sweat secretion rate usually means a low concentration of biomarkers in the sweat, thus during the detection of the wearer's sweat, the rapid changes in the wearer's physiological parameters cannot be captured in real time, such as the sudden increase in lactic acid after exercise and the cortisol fluctuation in a stress state, etc., thereby affecting the metabolic kinetics modeling. The flexible piezoresistive sensor 141 in the present invention is a sensor that can change the resistance value according to the pressure. Utilizing this characteristic, it can continuously monitor the minute deformation on the skin surface and respond to the generation and flow of sweat in real time, ensuring the accuracy and reliability of the monitoring data. That is, the flexible piezoresistive sensor 141 can simultaneously measure the skin surface pressure change (such as muscle contraction) and the sweat secretion amount, and correlate the physiological state through an algorithm. At the same time, since the flexible piezoresistive sensor 141 has a tensile tolerance of up to 200%, it still maintains a stable signal under strenuous exercise or complex deformation, avoiding the signal loss caused by displacement of traditional rigid sensors.

[0020] Furthermore, combining the attached Figure 3As shown, the microchannel 18 in the present invention includes an inlet region 182 communicating with the liquid inlet 131, a detection region 183 communicating with the liquid outlet 132, and an acceleration region 184 for communicating the inlet region 182 and the detection region 183. The apertures of the inlet region 182 and the detection region 183 are both larger than that of the acceleration region 184, and the apertures of the inlet region 182 and the detection region 183 are the same. The capillary bursting valve 19 in the present invention is installed at the intersection of the detection region 183 and the acceleration region 184. The capillary bursting valve 19 is in a conical shape when closed. The pins of the sweat detection element 142 are within the detection region 183. Thus, when the capillary bursting valve 19 is closed, the pins of the sweat detection element 142 can be separated from the sweat, avoiding direct contact between a small amount of sweat and the pins of the sweat detection element 142, thereby preventing a small amount of sweat from affecting the detection data of the sweat detection element 142. The capillary bursting valve 19 in the present invention includes a base 191 and a plurality of deformation parts 192. An elastic patch 193 is installed on the outer wall of one of the deformation parts 192. A plurality of staggered flexible membranes 194 are embedded in the elastic patch 193. When the capillary bursting valve 19 is closed, the flexible membrane 194 contacts the pin end of the sweat detection element 142. When the capillary bursting valve 19 is opened, the elastic patch 193 will deform synchronously with the deformation part 192 of the capillary bursting valve 19, that is, the elastic patch 193 drives the flexible membrane 194 to change its position synchronously, so that the flexible membrane 194 no longer contacts the pin end of the sweat detection element 142, and the pin end of the sweat detection element 142 will contact the sweat within the detection region 183. To facilitate the opening of the capillary bursting valve 19, the present invention designs the shape of the inlet region 182 of the microchannel 18. Combining with Figure 3 and Figure 4 As shown, the shape of the inlet region 182 is similar to a tapered cone, that is, the aperture of the end of the inlet region 182 communicating with the liquid inlet 131 is larger than the aperture of the end communicating with the acceleration region 184, and a plurality of protrusions 181 are also embedded on the inner wall of the inlet region 182. The protrusions 181 are mainly used to isolate the skin medium and hair of the wearer, reducing the probability of them entering the microchannel 18. Sweat will enter the entry area 182 through the liquid inlet 131. When in the entry area 182, since the entry area 182 is designed to be tapered, the flow rate of the sweat will correspondingly increase, and when it enters the acceleration area 184, it will be at a relatively fast flow rate. It should be noted that in the microchannel 18 of the present invention, that is, the hydrophilic coating is applied to the inner walls of the pores 17 in the hydrophilic layer 13 and the component mounting layer 14. Under the action of capillary pressure, the sweat flows towards the capillary bursting valve 19. When the sweat secretion is less, the pressure to open the capillary bursting valve 19 cannot be provided. At this time, the capillary bursting valve 19 separates the pins of the sweat detection element 142 from the sweat, avoiding direct contact between a small amount of sweat and the pins of the sweat detection element 142. When the user's sweat secretion is normal or more, at this time the capillary bursting valve 19 will be in an open state, enabling the sweat to contact the pins of the sweat detection element 142. The sweat detection element 142 is used to detect the components of the wearer's sweat, and based on the results detected by the flexible piezoresistive sensor 141 that can synchronously measure the change in the skin surface pressure, the physiological state of the wearer can be obtained. Further, the capillary bursting valve 19 is made of an elastic material (biological silicone can be used). When the sweat secretion is too low to provide the opening of the capillary bursting valve 19, the capillary bursting valve 19 will close, so that the flexible membranes 194 arranged in a staggered manner on the elastic patch 193 contact the pins of the sweat detection element 142, and the flexible membranes 194 are used to clean the ends of the pins of the sweat detection element 142, reducing the influence of residual sweat on the pins of the sweat detection element 142. That is, when the flexible membranes 194 contact the pins of the sweat detection element 142, under the action of the pins of the sweat detection element 142, the multiple flexible membranes 194 will deform, and during the deformation process, they will contact the pins of the sweat detection element 142, so that the pins of the sweat detection element 142 are cleaned by the surface and side wall areas of the flexible membranes 194, thus effectively reducing the influence of residual sweat on the pins of the sweat detection element 142.

[0021] To assist the opening of the capillary bursting valve 19, the present invention has an air hole channel 3 opened on the outer shell 11, which sequentially penetrates through the protective layer 15, the component mounting layer 14 and the hydrophilic layer 13. Combined with the attached Figure 3As shown, both ends of the air hole channel 3 are conical, and a drainage hole 31 communicating with the air hole channel 3 is formed in the component installation layer 14; the aperture diameters at both ends of the air hole channel 3 are larger than those in the middle region, and the aperture diameter in the middle region of the air hole channel 3 is larger than that of the drainage hole 31. One end of the drainage hole 31 far from the air hole channel 3 communicates with the hole channel 17 on the component installation layer 14; the end of the drainage hole 31 communicating with the hole channel 17 is conical, and a hydrophobic coating is applied to the inner wall of the drainage hole 31. Then, when the wearer makes a movement while wearing the monitoring part 1, the air holes will communicate with the surrounding environment at this time. Since the aperture diameters at both ends of the air hole channel 3 are larger than those in the middle region, the air entering the air hole channel 3 will accelerate in the middle region of the air hole channel 3. And the aperture diameter of the drainage hole 31 is smaller than that in the middle region of the air hole channel 3. According to Bernoulli's equation, when the air in the air hole channel 3 flows through the hole with a gradually decreasing aperture, since the aperture diameter of the drainage hole 31 is smaller than that in the middle region of the air hole channel 3, and the end of the drainage hole 31 communicating with the hole channel 17 is conical, that is, the aperture diameter of the end of the drainage hole 31 communicating with the hole channel 17 is larger than that of the end communicating with the air hole channel 3, it makes the static pressure of the drainage hole 31 near the air hole channel 3 less than the static pressure near the micro-channel 18 end to form a pressure difference. Then, the air hole channel 3 generates suction on the sweat in the micro-channel 18 through the drainage hole 31. On the one hand, it can assist the flow of the sweat in the micro-channel 18 to make it flow out from the liquid outlet 132. On the other hand, it is convenient for the opening of the capillary bursting valve 19, so that the sweat quickly contacts the pin end of the sweat detection component 142, facilitating the sweat detection component 142 to detect the components of the sweat.

[0022] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0023] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wearable health monitoring device, characterized in that, It includes a monitoring part (1) and a wearing part (2). The monitoring part (1) includes a housing (11), and a film layer (12), a hydrophilic layer (13), a component mounting layer (14), a protective layer (15), and a battery (16) arranged in sequence from bottom to top. A plurality of liquid inlets (131) are formed on the hydrophilic layer (13), and a plurality of channels (17) corresponding to the liquid inlets (131) one by one are formed on both the hydrophilic layer (13) and the component mounting layer (14). The channels (17) between the hydrophilic layer (13) and the component mounting layer (14) form a microchannel (18). A plurality of liquid outlets (132) corresponding to and communicating with the microchannel (18) one by one are further arranged on the hydrophilic layer (13). Sweat enters the microchannel (18) through the liquid inlets (131). A flexible piezoresistive sensor (141) and a plurality of sweat detection components (142) corresponding to the microchannel (18) one by one are mounted on the component mounting layer (14). The pin ends of the sweat detection components (142) are located in the microchannel (18), and a capillary bursting valve (19) is further arranged in the microchannel (18).

2. The wearable health monitoring device according to claim 1, characterized in that: The microchannel (18) includes an inlet area (182) communicating with the liquid inlet (131), a detection area (183) communicating with the liquid outlet (132), and an acceleration area (184) for communicating the inlet area (182) and the detection area (183). The pore diameters of the inlet area (182) and the detection area (183) are both larger than that of the acceleration area (184). The capillary bursting valve (19) is installed at the intersection of the detection area (183) and the acceleration area (184).

3. The wearable health monitoring device according to claim 2, characterized in that: The pore diameter of the end of the inlet area (182) communicating with the liquid inlet (131) is larger than that of the end communicating with the acceleration area (184), and a plurality of protruding parts (181) are embedded on the inner wall of the inlet area (182).

4. The wearable health monitoring device according to claim 3, wherein: The capillary bursting valve (T9) includes a base (191) and a plurality of deformation parts (192), and the outer shape of the capillary bursting valve (19) is conical when it is closed.

5. The wearable health monitoring device according to claim 4, characterized in that: An elastic patch (193) is installed on the outer wall of one of the deformation parts (192). A plurality of flexible membranes (194) arranged in a staggered manner are embedded in the elastic patch (193). When the capillary bursting valve (19) is closed, the flexible membranes (194) contact the pin ends of the sweat detection components (142).

6. The wearable health monitoring device according to claim 2, wherein: An air hole flow channel (3) is formed on the housing (11) and penetrates through the protective layer (15), the component mounting layer (14), and the hydrophilic layer (13) in sequence. Both ends of the air hole flow channel (3) are conical, and a drainage hole (31) communicating with the air hole flow channel (3) is formed in the component mounting layer (14).

7. The wearable health monitoring device according to claim 6, wherein: The pore diameters of both ends of the air hole flow channel (3) are larger than that of the middle area, and the pore diameter of the middle area of the air hole flow channel (3) is larger than that of the drainage hole (31). One end of the drainage hole (31) far from the air hole flow channel (3) communicates with the channel (17) on the component mounting layer (14).

8. The wearable health monitoring device according to claim 7, characterized in that: One end of the drainage hole (31) communicating with the hole channel (17) is conical, and a hydrophobic coating is applied to the inner wall of the drainage hole (31).

9. The wearable health monitoring device according to any one of claims 1-8, characterized in that: The wearing part (2) includes an annular band (21) fixedly connected to the outer shell (11) and a snap ring (22) adapted to the annular band (21). A plurality of annular silica gel protrusions (23) are provided on both the annular band (21) and the snap ring (22), and a plurality of card slots (24) adapted to the annular silica gel protrusions (23) are formed in the snap ring (22).

10. The wearable health monitoring device according to claim 9, wherein: A chamber (25) communicating with the outside is formed inside the annular silica gel protrusion (23).

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