A biological sign monitoring sensor device

Abstract

This application relates to the technical field of vital sign monitoring, and in particular to a biometric monitoring sensor device, comprising: a display screen for displaying monitoring data; a housing for supporting the display screen; a ring-shaped connecting mechanism disposed on the housing, surrounding the human wrist, and having a gap between it and the human wrist; a monitoring module disposed on the side of the housing near the human wrist, capable of fitting snugly against the human wrist for biometric detection; an airbag disposed on the ring-shaped connecting mechanism, located on the opposite side of the monitoring module and in contact with the human wrist, which, when inflated, causes the monitoring module to press firmly against the human wrist; and a control module integrated within the housing and electrically connected to the display screen, the control module controlling the inflation or deflation of the airbag. This application improves wearing comfort and maintains the accuracy of monitoring results.

Description

Technical Field

[0001] This application relates to the technical field of vital sign monitoring, and in particular to a biological vital sign monitoring sensor device. Background Technology

[0002] Currently, with the increasing awareness of health management and the development of IoT technology, wearable biometric monitoring devices are being used more and more widely in scenarios such as medical monitoring, sports and health, and daily health care. Among them, monitoring physiological parameters such as heart rate, blood oxygen, and blood pressure based on the wrist has become the mainstream solution due to its convenience and continuity, and is being combined with watches to form new smart products.

[0003] Such devices need to ensure that the sensor module fits stably against the skin to obtain high-precision data, while also taking into account wearing comfort and breathability, which places higher demands on the structural design of the device; currently, the mainstream wrist-worn monitoring devices are mainly fixed by elastic straps (such as silicone or nylon materials) or metal buckles.

[0004] However, some wearable elastic or metal watch bands cannot adapt to wrists of various sizes. If the metal or elastic watch band is too tight, it will compress the wrist, causing discomfort and easily leaving indentations; if it is too loose, the monitoring effect will be inaccurate, and in summer, sweating will cause the wrist to thicken, changing the gap between the watch band and the wrist, affecting wearing comfort. Summary of the Invention

[0005] To improve wearing comfort and maintain the accuracy of monitoring results, this application provides a biosignature monitoring sensor device.

[0006] This application provides a biosignature monitoring sensor device, which adopts the following technical solution:

[0007] A biosign monitoring sensor device, comprising:

[0008] The display screen is used to show monitoring data;

[0009] The outer casing is used to support the display screen;

[0010] A ring-shaped connecting mechanism is set on the outer shell, surrounding the human wrist, and has a gap between it and the human wrist;

[0011] The monitoring module is located on the side of the outer shell near the human wrist, and can fit in close contact with the human wrist to detect biosignatures;

[0012] An airbag is mounted on a ring-shaped connecting mechanism, located on the opposite side of the monitoring module, and in contact with the human wrist. When inflated, it causes the monitoring module to press against the human wrist.

[0013] The control module is integrated inside the housing and is electrically connected to the display screen. The control module controls the inflation or deflation of the airbag.

[0014] By adopting the above technical solution, when the device is worn, a gap is maintained between the ring mechanism and the wrist. When real-time monitoring is required or the user wants to perform a test, the airbag can be inflated through the control module. The airbag pushes against the wrist, and the reaction force drives the monitoring module to press against the skin.

[0015] The airbag pressure is adjustable in real time, overcoming the static pressure defects of traditional watchbands; the gap design avoids initial pressure, and after expansion, it adapts to the curvature of the wrist, improving wearing comfort and maintaining contact between the monitoring module and the skin, thus ensuring the accuracy of the monitoring results; when no monitoring is needed, it can reduce the restraint on the wrist and improve comfort; and in summer or winter, the expansion degree of the airbag can be adjusted according to wearing comfort, reducing pressure on the wrist and reducing the rotation of the device.

[0016] Optionally, the airbag is covered with an elastic fabric, and the side near the annular connecting mechanism is connected to the annular connecting mechanism by Velcro.

[0017] By adopting the above technical solution, the airbag is attached to the preset position of the ring mechanism with Velcro, and the elastic cloth wraps the airbag to limit excessive deformation. The setting of the elastic cloth will not affect the excessive expansion of the airbag, and the airbag can be removed as needed, improving applicability, user experience and comfort. Furthermore, the airbag can be replaced after it is damaged.

[0018] Optionally, a silicone layer is provided on the side of the airbag that contacts the human wrist.

[0019] By adopting the above technical solution, the silicone layer directly contacts the skin when the airbag inflates, reducing the coefficient of friction and minimizing skin irritation, allergy rate, and discomfort. The high-friction silicone also inhibits slippage during movement.

[0020] Optionally, sweat-wicking grooves are formed on the silicone layer.

[0021] By adopting the above technical solution, sweat flows along the sweat-guiding groove to the edge of the airbag and is then discharged, reducing the accumulation in the wrist, reducing swelling at the wrist, reducing discomfort, and reducing the impact on skin health.

[0022] Optionally, the airbag is provided with honeycomb-shaped reinforcing ribs to divide the airbag into independent air chambers, and each air chamber is connected by a micro airway.

[0023] By adopting the above technical solution, during inflation, each air chamber passes through a micro airway to balance the pressure. The honeycomb rib wall restricts local bulging, and the reinforcing ribs guide the airbag to expand towards the monitoring module, thus orienting the expansion direction of the airbag, reducing ineffective lateral expansion, improving efficiency, and ensuring balanced pressure. Multi-point expansion reduces large-area expansion and improves wearing comfort.

[0024] Optionally, the airbag is provided with an exhaust port, which is a magnetic air valve and is connected to the sweat-wicking groove.

[0025] By adopting the above technical solution, the magnetic suction valve is connected to an external air pump. When there is overpressure, the gas is discharged through the pressure relief hole and the sweat guide groove, which automatically relieves pressure and reduces radial artery compression. The exhaust gas is connected to the sweat guide groove to reduce skin immersion. Moreover, during the exhaust process, the skin surface is cooled and dried.

[0026] Optionally, the outer surface of the airbag is provided with a restraint band, which is disposed on the annular connecting mechanism and forms a vertical limiting section to reduce the expansion of the airbag along the arc direction of the wrist.

[0027] By adopting the above technical solution, the airbag inflates, the high-modulus fibers of the restraint band straighten, suppressing lateral expansion, and the vertical limit allows the airbag thrust to be transmitted to the monitoring module, improving the efficiency of expansion restraint, reducing longitudinal stretching of the skin, and improving comfort.

[0028] Optionally, the inner wall of the annular connecting mechanism is provided with a plurality of pressure-dividing protrusions, the pressure-dividing protrusions corresponding to the honeycomb reinforcing ribs, and ventilation holes are provided between adjacent pressure-dividing protrusions.

[0029] By adopting the above technical solution, the pressure-distributing protrusions facilitate the positioning of the airbag, and the setting of the pressure-distributing protrusions provides directional pressure on the airbag during bonding, further increasing the directional expansion efficiency of the airbag. At the same time, the vent holes promote air circulation and improve breathability.

[0030] In summary, this application includes at least one of the following beneficial technical effects:

[0031] 1. The airbag pressure is adjustable in real time, overcoming the shortcomings of traditional watchband static pressure; the gap design avoids initial pressure, and after expansion, it adapts to the curvature of the wrist, improving wearing comfort and maintaining contact between the monitoring module and the skin, thus ensuring the accuracy of the monitoring results; when no monitoring is needed, it can reduce the restraint on the wrist and improve comfort; and in summer or winter, the expansion degree of the airbag can be adjusted according to wearing comfort to reduce pressure on the wrist and reduce the rotation of the device.

[0032] 2. The airbag inflates, the high-modulus fibers of the restraint strap straighten, inhibiting lateral expansion, and the vertical limit allows the airbag thrust to be transmitted to the monitoring module, improving the efficiency of expansion restraint, reducing longitudinal stretching of the skin, and improving comfort;

[0033] 3. The pressure-dividing protrusions facilitate the positioning of the airbag, and the design of the pressure-dividing protrusions provides directional pressure on the airbag during bonding, further increasing the directional expansion efficiency of the airbag. At the same time, the vent holes promote air circulation and improve breathability. Attached Figure Description

[0034] Figure 1 This is an overall structural diagram of the biosign monitoring sensor device in the embodiments of this application;

[0035] Figure 2 This is a cross-sectional view of the airbag in an embodiment of this application;

[0036] Figure 3 This is a cross-sectional view of the second watch strap in an embodiment of this application.

[0037] Reference numerals: 100, display screen; 200, outer casing; 300, annular connecting mechanism; 310, first strap; 320, second strap; 321, arc-shaped groove; 322, pressure-dividing protrusion; 323, vent hole; 330, connecting ring; 340, connecting part; 350, mating part; 400, airbag; 410, air chamber; 500, elastic fabric; 600, silicone layer; 610, sweat-wicking groove; 700, honeycomb reinforcing rib; 800, restraint strap. Detailed Implementation

[0038] The following combination Figures 1 to 3 This application will be described in further detail.

[0039] This embodiment discloses a biological vital signs monitoring sensor device.

[0040] Reference Figure 1 and Figure 2 A biometric monitoring sensor device includes a housing 200, an annular connecting mechanism 300 fixed to the housing 200, a monitoring module located on the back of the housing 200, a display screen 100 located on the front of the housing 200, a control module located on the housing 200 and electrically connected to the display screen 100 and the monitoring module, and an airbag 400 installed on the inner wall of the annular connecting mechanism 300. The annular connecting mechanism 300 forms a 2-3mm gap around the wrist, with the monitoring module located inside the gap and in contact with the skin. The airbag 400 is located outside the gap, arranged diagonally to the monitoring module at 180°. When the user triggers a monitoring command or a real-time monitoring command is triggered, the control module starts the air pump, the airbag 400 inflates and presses against and pushes the wrist, and the reaction force drives the monitoring module to press firmly against the skin, collecting physiological signals.

[0041] The annular connecting mechanism 300 includes a first watch strap 310, a second watch strap 320, a connecting ring 330, a connecting part 340, and a mating part 350. The first watch strap 310 and the second watch strap 320 correspond to the two ends of the outer casing 200 respectively and are rotatably connected to the outer casing 200. The second watch strap 320 is longer than the first watch strap 310. The connecting ring 330 is fixedly connected to the first watch strap 310. The end of the second watch strap 320 away from the outer casing 200 passes through the connecting ring 330 and surrounds the connecting ring 330 towards the outer casing 200. The connecting part 340 is located at the end of the second strap 320 away from the outer shell 200, and the mating part 350 is located on the side wall of the second strap 320 away from the human wrist and is arranged along its length. The connecting part 340 and the mating part 350 are connected. The connecting part 340 and the mating part 350 can be quick connection methods such as magnetic blocks, buckles or snaps. In this embodiment, a buckle structure is preferred. The connecting part 340 is a protruding buckle, and the mating part 350 is a plurality of mating holes opened on the second strap 320. The protruding buckle is inserted into one of the mating holes.

[0042] To facilitate bending and reduce damage to human skin, the first strap 310, the second strap 320, and the connecting ring 330 are all made of rubber.

[0043] The monitoring module can use a PPG sensor and an ECG electrode. The PPG sensor is centrally mounted on the side of the housing 200 near the wrist, with an aluminum substrate in the middle. The PPG sensor can be model AMS AS7038RB (light wavelength 530nm / 660nm / 880nm), or other models can be used. The ECG electrode is mounted on the aluminum substrate, made of titanium alloy TC4, with a diameter of 5mm and a micro-arc oxidation treatment on the surface. A pressure sensor can also be mounted on the aluminum substrate. The pressure sensor is electrically connected to the control module and is used to control the airbag 400 to stop inflating when the pressure reaches the set value.

[0044] A connecting fabric is sewn onto the second watch strap 320. The airbag 400 is attached to the connecting fabric of the second watch strap 320 via Velcro and is located on the side of the second watch strap 320 that contacts the human wrist. A micro air pump is embedded in the outer shell 200 or a micro air pump is provided on the adhesive side of the airbag 400. Its inflation port is connected to the micro air pump via a hose. The micro air pump is electrically connected to the control module. The micro air pump can be a micro diaphragm pump.

[0045] Reference Figure 3For the installation of the airbag 400, an arc-shaped groove 321 can be formed on the second strap 320. The connecting fabric is sewn into the arc-shaped groove 321, and the airbag 400 is embedded in the arc-shaped groove 321 with its long axis parallel to the direction of the wrist bone. The outer surface of the airbag 400 is covered with elastic spandex fabric, and the edge of the fabric is attached to the inner surface of the arc-shaped groove 321 by Velcro. When disassembling, the airbag 400 can be replaced by peeling off the Velcro, which shortens the maintenance time. The elastic fabric 500 limits the radial expansion rate of the airbag 400.

[0046] A silicone layer 600 is provided on the side of the airbag 400 near the human wrist. The silicone layer 600 is laminated to the human contact side of the airbag 400, with a thickness of 0.8mm, and completely covers the working surface of the airbag 400. The surface of the silicone layer 600 is laser-engraved with radial sweat-guiding grooves 610, with a groove depth of 0.3mm, a width of 0.4mm, and a spacing of 1.5mm. Sweat flows along the grooves to the edge of the airbag 400, reducing the amount of liquid residue in the contact area.

[0047] The airbag 400 is internally equipped with honeycomb-shaped reinforcing ribs 700 to divide the air chambers 410 of the airbag 400. The honeycomb-shaped TPU reinforcing ribs are in-mold injection molded into the inner cavity of the airbag 400, with a rib height of 2mm and a wall thickness of 0.4mm. The reinforcing ribs divide the airbag 400 into multiple independent air chambers 410, and adjacent air chambers 410 are connected through φ0.5mm micro air channels. The walls of the honeycomb-shaped reinforcing ribs 700 extend toward the human wrist to restrict the expansion direction of the airbag 400, and when expanded, the multiple air chambers 410 form a protrusion toward the human wrist.

[0048] An exhaust port is provided on the airbag 400. The exhaust port adopts a magnetic exhaust valve. The magnetic exhaust valve is located on the side edge of the airbag 400. The valve body outlet is aligned with and connected to the sweat-guiding groove 610. When there is overpressure, the gas passes through the valve body and then through the sweat-guiding groove 610 to be discharged, thus drying the skin simultaneously.

[0049] To further restrict the expansion direction of the airbag 400, a constraint band 800 is provided on the second strap 320. The constraint band 800 covers the outer surface of the airbag 400 and is arranged around the arc-shaped groove 321, and forms an arc-shaped chamfer away from the side wall of the airbag 400; the radial expansion rate of the airbag 400 is compressed, and the axial thrust is increased.

[0050] Furthermore, multiple pressure-dividing protrusions 322 are provided at the bottom of the arc-shaped groove 321. The pressure-dividing protrusions 322 are arrayed on the inner wall of the arc-shaped groove 321. The pressure-dividing protrusions 322 correspond to the air chamber 410 of the airbag 400, and their centers are aligned with the center of the air chamber 410 of the airbag 400. A φ1mm vent hole 323 is provided at the root of the protrusion, which penetrates the second strap 320.

[0051] The control module includes the following core unit: Main control chip: Nordic nRF52840 (Bluetooth 5.1), which internally compiles control programs, sets control parameters and control logic, and connects to the display screen 100, the miniature air pump, and the monitoring module via electrical signals; Control logic: Receives monitoring commands and starts the air pump to inflate; The pressure sensor provides real-time feedback on wrist pressure, and stops the pump when the set value is reached; After signal acquisition is complete, the magnetic exhaust valve (solenoid valve) releases pressure.

[0052] When initially worn, the gap between the ring connecting mechanism 300 and the wrist avoids pressure. When monitoring starts, the control module controls the air pump to inflate, causing the airbag 400 to expand in a specific direction. The restraint strap 800 inhibits radial deformation, and the monitoring module presses the wrist with a pressure of 20±5 mmHg. The silicone layer 600 prevents slippage, the sweat channel 610 drains sweat, and the ventilation hole 323 promotes heat dissipation. When monitoring ends, the magnetic valve releases pressure, the airbag 400 contracts, the gap is restored, and the wrist restraint is released.

[0053] The pressure of the airbag 400 can be adjusted according to user experience, and the initial pressure of the airbag 400 can be set according to the user's usage to adapt to different wrist sizes and improve user comfort; at the same time, the pressure of the airbag 400 is adjusted in real time to adapt to sports / resting states; the pressure is reduced during monitoring and the feeling of restraint is eliminated during non-monitoring periods.

[0054] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A biological vital sign monitoring sensor device, characterized in that: include: Display screen (100) is used to display monitoring data; Housing (200) for supporting display screen (100); A ring-shaped connecting mechanism (300) is disposed on the outer shell (200), surrounds the human wrist, and has a gap with the human wrist; The monitoring module is located on the side of the outer shell (200) near the human wrist, and can fit against the human wrist to perform biometric detection; An airbag (400) is mounted on a ring-shaped connecting mechanism (300), located on the opposite side of the monitoring module and in contact with the human wrist. When inflated, it causes the monitoring module to press against the human wrist. The control module is integrated inside the housing (200) and is electrically connected to the display screen (100). The control module controls the airbag (400) to inflate or contract.

2. The biosign monitoring sensor device according to claim 1, characterized in that: The airbag (400) is covered with an elastic fabric (500) and is connected to the annular connecting mechanism (300) via Velcro on the side near the annular connecting mechanism (300).

3. The biosign monitoring sensor device according to claim 2, characterized in that: A silicone layer (600) is provided on the side of the airbag (400) that contacts the human wrist.

4. The biosign monitoring sensor device according to claim 3, characterized in that: Sweat-wicking grooves (610) are formed on the silicone layer (600).

5. The biosign monitoring sensor device according to claim 4, characterized in that: The airbag (400) is provided with honeycomb reinforcing ribs (700) inside, which divide the airbag (400) into independent air chambers (410), and each air chamber (410) is connected by a micro airway.

6. The biosign monitoring sensor device according to claim 4, characterized in that: The airbag (400) is provided with an exhaust port, which adopts a magnetic air valve and is connected to the sweat-guiding groove (610).

7. The biosignature monitoring sensor device according to any one of claims 1-6, characterized in that: The outer surface of the airbag (400) is provided with a restraint band (800), which is set on the annular connecting mechanism (300) and forms a vertical limiting section to reduce the expansion of the airbag (400) along the arc direction of the wrist.

8. The biosign monitoring sensor device according to claim 5, characterized in that: The inner wall of the annular connecting mechanism (300) is provided with a plurality of pressure-dividing protrusions (322), the pressure-dividing protrusions (322) correspond to the honeycomb reinforcing ribs (700), and ventilation holes (323) are provided between adjacent pressure-dividing protrusions (322).

Images