CN112043250A - A flexible wearable vital sign monitoring device, monitoring system and preparation process - Google Patents

Abstract

The invention belongs to the field of wearable electronic products, and specifically discloses a flexible wearable vital sign monitoring device, comprising a multi-layer flexible layer and a collection and processing component. Concentration sensor, body temperature sensor, acceleration sensor, storage module, wireless communication module, alarm module and power supply module; the integration is very high, the performance is stable, and the volume is small, which simplifies the electronic circuit; the flexible layer includes flexible adhesive layer and electrical layer, soft It has good performance, so even if only weak vibration signals are generated due to changes in breathing, pulse or heartbeat, high accuracy signals can be obtained. The invention also discloses a monitoring system based on the monitoring system. The flexible wearable vital sign monitoring device communicates with the remote server to provide reference and guidance for group health management. The preparation process is also disclosed, which is simple and easy to popularize.

Description

A flexible wearable vital sign monitoring device, monitoring system and preparation process

technical field

The invention relates to the field of wearable electronic products, in particular to a flexible wearable vital sign monitoring device, a monitoring system and a preparation process.

Background technique

With the continuous development of today's technology, people pay more and more attention to physical health. More and more people start to pay attention to physical health. They go to the hospital for physical examinations regularly. Frequent visits to medical institutions or home for measurements are required. Although some health management devices in the form of daily necessities have been launched on the market to meet the needs of human beings to a certain extent, there are still some problems.

Such as smart watches and smart bracelets, but most of the devices have relatively simple functions, and the devices that can complete the collection and monitoring of vital signs are mainly limited to the sports field. The vital sign parameters are not comprehensive enough to systematically reflect the health status of the human body, and most of them are isolated devices that cannot complete a relatively systematic health monitoring and management.

Most of the existing vital signs monitoring equipment is used in hospital wards, which are large in size, require high working environment, and are expensive and inconvenient to carry, so they are not suitable for the general population. In addition, in order to ensure that the quality of various signals collected can meet the requirements of clinical monitoring as much as possible, this puts forward great requirements for the selection of the acquisition device, which not only meets the comfort of the acquisition process, but also can collect high-quality signals. How to monitor the development trend of various vital signs in real time in people's daily life and determine the optimal coping strategy is particularly important.

SUMMARY OF THE INVENTION

One of the objectives of the present invention is to provide a flexible wearable vital sign monitoring device, which solves the problem that the vital sign parameters measured by the current equipment are not comprehensive enough to systematically reflect the health status of the human body.

The second purpose of the present invention is to provide a monitoring system based on a flexible wearable vital sign monitoring device. The flexible wearable vital signs monitoring device communicates with a remote server to achieve targeted health status assessment, and can analyze large-scale data. Useful group laws are extracted to provide reference and guidance for group health management.

The present invention is achieved through the following technical solutions:

A flexible wearable vital sign monitoring device, comprising a multi-layer flexible layer and an acquisition and processing component distributed on the flexible layer, the acquisition and processing component includes a microcontroller, a heart rate and blood oxygen concentration sensor, a body temperature sensor, Acceleration sensor, storage module, wireless communication module, alarm module and power supply module;

The multi-layer flexible layer includes a first flexible layer, a second flexible layer, a third flexible layer and a fourth flexible layer from bottom to top; the fourth flexible layer is used as an encapsulation layer, and the lower surface of the first flexible layer is An adhesive layer is provided, and an anti-adhesive layer is provided outside the adhesive layer;

The first flexible layer, the second flexible layer and the third flexible layer include a flexible adhesive layer and an electrical layer arranged in sequence from bottom to top; the fourth flexible layer is a flexible adhesive layer;

The heart rate blood oxygen concentration sensor and the body temperature sensor are arranged on the first flexible layer; the microcontroller, the acceleration sensor and the storage module are arranged on the second flexible layer; the wireless communication module, the alarm module and the power supply module are arranged on the third flexible layer layer.

Further, the sticking layer adopts a transparent adhesive, or adopts a self-adhesive sticker.

Further, the release layer adopts PC release paper.

Further, the material of the flexible adhesive layer is polydimethylsiloxane, polyimide, polyethylene terephthalate or aliphatic aromatic random copolyester.

Further, the electrical layer is a serpentine circuit prepared from a conductive foil.

Further, copper foil is used for the conductive foil.

Further, the flexible layer adopts a rectangular shape, and the four corners of the rectangle are rounded.

Further, the microcontroller adopts STM32F103T8T6 chip, the heart rate and blood oxygen concentration sensor adopts MAX30102 module, the body temperature sensor adopts MAX30205MTA module, the acceleration sensor adopts MPU6050 module, the alarm module adopts SMD buzzer and LED alarm, the storage module adopts TF card, wireless communication The module adopts NRF24L01 module.

The invention also discloses a monitoring system based on the flexible wearable vital signs monitoring device. The microcontroller is connected with a home server through a wireless communication module, and the home server is used for displaying and storing the vital signs collected and processed by the collecting and processing component. parameters, the home server is connected with the remote server, and the remote server and the expert system are interconnected for processing, analyzing and making decisions on the vital sign parameters.

The invention also discloses a preparation process of the flexible wearable vital signs monitoring device, comprising the following steps:

S1. Prepare the first flexible layer, the second flexible layer and the third flexible layer: spin-coat the flexible glue on the carrier board, paste the conductive foil after the flexible glue is cured, and cut out the target wire on the conductive foil , peel off the excess conductive foil to obtain the electrical layer; then separate the carrier board from the flexible adhesive layer;

S2, prepare the fourth flexible layer: spin-coat the flexible adhesive on the carrier plate, and after the flexible adhesive is cured, separate the carrier plate from the flexible adhesive layer;

S3. Arrange correspondingly installed devices on the first flexible layer, the second flexible layer and the third flexible layer, and connect adjacent electrical layers through wires;

S4, encapsulate and cure the multi-layer flexible layers that have been connected;

S5, preparing an adhesive layer on the lower surface of the first flexible layer, and wrapping a release layer on the outside of the adhesive layer.

Compared with the prior art, the present invention has the following beneficial technical effects:

The invention discloses a flexible wearable vital sign monitoring device, which comprises a multi-layer flexible layer, a microcontroller is integrated on the flexible layer, a heart rate and blood oxygen concentration sensor, a body temperature sensor, an acceleration sensor and a storage device are respectively connected with the microcontroller. The module, wireless communication module, alarm module and power supply module can comprehensively measure the vital signs parameters of the human body. The integration is very high, the performance is stable, and the volume is small, which simplifies the electronic circuit; the first flexible layer needs to be set with the human body. The heart rate and blood oxygen concentration sensor and the body temperature sensor are in close contact with the skin, so that the infrared signal of the heart rate blood oxygen concentration sensor can penetrate the flexible layer and measure accurately; the microcontroller, acceleration sensor, and storage module are arranged on the second flexible layer. The microcontroller is arranged in the middle to facilitate the connection of other layers of devices, and the wiring is short; the wireless communication module, the alarm module and the power supply module are arranged on the third flexible layer to facilitate communication with external devices. The flexible layer includes a flexible adhesive layer and an electrical layer, and has good flexibility, so even if only weak vibration signals are generated due to changes in breathing, pulse or heartbeat, high accuracy signals can be obtained.

Further, the sticking layer is a transparent adhesive suitable for human skin, or is designed in the form of a "non-dry sticker", and the device only needs to be attached to the human skin such as the forehead, neck, forearm, wrist, thigh, ankle, etc. Surface, easy to use.

Further, the release layer adopts PC release paper, which is a transparent protective layer, and a layer of polyester protective film and medical embossed plastic film attached to the surface of the adhesive layer are removed before use for release and moisturizing.

Further, the electrical layer is a serpentine circuit prepared from a conductive foil, and the serpentine circuit is a flexible circuit, which provides a guarantee for the flexibility of the flexible layer.

The invention also discloses a monitoring system. The flexible wearable vital sign monitoring device communicates with a remote server, and transmits the collected data to the remote end in real time, so as to realize remote real-time monitoring, and can be connected with an expert system to achieve targeted Through big data and cloud computing technology, it can also extract useful group laws from large-scale data, and provide reference and guidance for group health management.

The invention also discloses a preparation process of the flexible wearable vital sign monitoring device, which is simple and easy to popularize.

Description of drawings

1 is a block diagram of the composition of the flexible wearable vital sign collection device of the present invention;

FIG. 2 is a laminated view of the flexible wearable vital sign collecting device of the present invention;

3 is a top view of the position of each module component of the flexible wearable vital sign collection device of the present invention

Fig. 4 is the electrical layer diagram of the flexible wearable vital sign collecting device of the present invention;

5 is a schematic diagram of the upper and lower spiral connection of the electrical layer of the flexible wearable vital sign collection device of the present invention

6 is a schematic structural diagram of the flexible layer of the present invention;

7 is a schematic diagram of the upper and lower spiral connection of the electrical layer;

Figure 8 is an overall architecture diagram of the monitoring system.

Among them, 1 is a microcontroller, 2 is a heart rate and blood oxygen concentration sensor, 3 is a body temperature sensor, 4 is an acceleration sensor, 5 is a storage module, 6 is a wireless communication module, 7 is an alarm module, 8 is a power supply module, and 9 is the first One flexible layer, 10 is the second flexible layer, 11 is the third flexible layer, 12 is the carrier board, 13 is the flexible adhesive layer, and 14 is the electrical layer.

Detailed ways

The present invention will be further described in detail below in conjunction with specific embodiments, which are to explain rather than limit the present invention.

As shown in FIG. 1 , the present invention discloses a flexible wearable vital sign monitoring device, which includes a multi-layer flexible layer and a collection and processing component distributed on the flexible layer. The collection and processing component includes a microcontroller 1 , and the microcontroller 1 Heart rate and blood oxygen concentration sensor 2 , body temperature sensor 3 , acceleration sensor 4 , storage module 5 , wireless communication module 6 , alarm module 7 and power supply module 8 are respectively connected.

As shown in Figures 2 and 4, the multi-layer flexible layers include a first flexible layer 9, a second flexible layer 10, a third flexible layer 11 and a fourth flexible layer from bottom to top; The heart rate and blood oxygen concentration sensor 2 and the body temperature sensor 3 are arranged on the layer 9, which need to be in close contact with the human skin, so that the infrared signal of the heart rate blood oxygen concentration sensor 2 can penetrate the flexible layer and measure accurately; microcontroller 1, acceleration sensor 4. The storage module 5 is arranged on the second flexible layer 10, and the microcontroller 1 is arranged in the middle to facilitate the connection of other layers of devices with it, and the wiring is short; the wireless communication module 6, the alarm module 7 and the power supply module 8 are arranged in the middle. On the third flexible layer 11 , the fourth flexible layer serves as an encapsulation layer, forming a seven-layer structure in total.

The first flexible layer 9 , the second flexible layer 10 and the third flexible layer 11 include a flexible adhesive layer 13 and an electrical layer 14 arranged in sequence from bottom to top; the fourth flexible layer is the flexible adhesive layer 13 .

An adhesive layer is provided on the lower surface of the first flexible layer 9, and a release layer is provided outside the adhesive layer.

The adhesive layer is made of transparent adhesive, or self-adhesive.

The anti-stick layer is made of PC release paper, which is a transparent protective layer. A layer of polyester protective film and medical embossed plastic film attached to the surface of the adhesive layer are peeled off before use for anti-sticking and moisturizing.

The flexible adhesive layer 13 is made of polydimethylsiloxane (PDMS) or other flexible materials (polyimide, polyethylene terephthalate, aliphatic aromatic random copolyester, etc.), The electrical layer 14 is a serpentine circuit made of conductive foil, and the conductive foil can be copper foil.

The flexible wearable vital signs acquisition device adopts the integration of micro rigid chips and circuit components and modules on the flexible layer, and collects signals with the help of multi-type micro integrated sensors. The circuit part is composed of MCU microcontroller 1, wireless charging and power supply circuit, heart rate Oxygen concentration sensor 2, human body temperature sensor 3, acceleration sensor 4, alarm module 7, storage module 5, wireless communication module 6, etc.

MCU microcontroller 1 selects STM32F103T8T6, heart rate and blood oxygen concentration sensor 2 selects MAX30102 module, body temperature sensor 3 selects MAX30205MTA module, acceleration sensor 4 selects MPU6050 module, alarm circuit selects SMD buzzer and LED alarm, and storage module 5 selects TF The card and wireless communication circuit use NRF24L01 module. These circuit modules are relatively mature integrated micro-modules that can be purchased in the market. Some are integrated into a microchip, and some are composed of chips and auxiliary circuits. The integration degree is very high, the performance is stable, and the Small size, affordable price, simplified electronic circuit.

The flexible wearable vital sign acquisition device is composed of multiple layers of extensible flexible circuits, all circuits are integrated in a rectangular area, and the overall area is reduced by using a multilayer circuit design. Figure 3 is a top view of the position of each module component. Since the entire flexible collection device is rectangular in shape, in order to stably and firmly fit the surface of the human skin, and to avoid flanging caused by friction, the four corners of the rectangle are chamfered. Fully consider the size and shape of each module and the needs of signal measurement, circuit wiring, anti-interference, and overall flexibility and stability.

The flexible wearable vital signs collection device has a total of 7 layers, of which 3 are circuit layers, which are used to place components and construct circuits; 4 are flexible layers, which are used for circuit packaging. Each layer has chips and auxiliary components, and the components of each layer are interconnected by serpentine copper foils to relieve the stress caused by stretching. The layers are isolated by the flexible adhesive layer 13, and a stable spiral interconnection channel is constructed for the signal interconnection between the upper and lower electrical layers 14, so as to prevent the through hole from being broken due to stretching or twisting.

The following is a processing and manufacturing method of the flexible wearable vital signs monitoring device of the present invention, which specifically includes the following steps:

S1. Prepare the first flexible layer 9, the second flexible layer 10 and the third flexible layer 11: spin-coat the flexible glue on the carrier board 12, paste the conductive foil on the conductive foil after the flexible glue is cured Cut out the target wire, peel off the excess conductive foil to obtain the electrical layer 14; then separate the carrier board 12 from the flexible adhesive layer;

S2, preparing the fourth flexible layer: spin-coating the flexible adhesive on the carrier plate 12, and after the flexible adhesive is cured, separate the carrier plate 12 from the flexible adhesive layer;

S3. Arrange correspondingly installed devices on the first flexible layer 9, the second flexible layer 10 and the third flexible layer 11, and connect the adjacent electrical layers 14 through wires;

S4, encapsulate and cure the multi-layer flexible layers that have been connected;

S5. An adhesive layer is prepared on the lower surface of the first flexible layer 9, and a release layer is wrapped around the adhesive layer.

Specifically, as shown in Figure 6, a glass carrier plate is selected, the flexible glue is spin-coated on the glass carrier plate, after the glue is cured, the copper foil is attached and the air bubbles are removed with a pressure roller; Wiring, cut out the target wire on the copper foil; peel off the excess copper foil, and then obtain the final single-layer serpentine circuit as shown in FIG. 7 to form the electrical layer 14 .

A laser cutting machine is used to cut through holes on the cured flexible adhesive layer 13 for connecting wires and electrode layers. The original sheet in the laser-cut through hole is removed to obtain a flexible layer between electrode layers of a single-layer flexible sensor. Repeat this step to prepare multiple flexible layers. The carrier plate 12 is not limited to a glass material.

The corresponding device modules are arranged and installed on the electrical layer 14 of each layer. As shown in FIG. 5 , the places that need to be connected between the layers are connected by "S"-shaped copper wires through through holes, and then packaged after the overall installation is completed.

In the actual use process, a transparent adhesive suitable for human skin is applied to the bottom layer of the flexible wearable vital sign collection device, or the device has been designed in the form of "non-drying sticker" when it leaves the factory, and it is only necessary to attach the device It fits on the surface of human skin such as the forehead, neck, forearm, wrist, thigh, ankle, etc. When various parameters of the human body change, the signal will be collected through the flexible acquisition device. Since the carrier plate 12 is made of flexible material, Therefore, even if only weak vibration signals are generated due to changes in respiration, pulse or heartbeat, highly accurate signals can be obtained.

The acquisition device mainly uses integrated sensors, which have stable performance, simple circuit structure, convenient installation, and multi-signal parameter compensation can be performed through matching algorithms, which is more reliable than traditional discrete acquisition equipment, thereby obtaining higher Acquisition accuracy.

A normal range of vital signs parameters is preset in the microcontroller 1. When the collected basic parameters such as human heart rate, blood oxygen concentration, limb movements, and body temperature are not within the normal range, that is, when the vital signs parameters are extremely abnormal , and the alarm module 7 performs sound and light alarms to arouse vigilance and attention.

The acquisition device can record these data through the storage module 5, and can be connected with the home server through the wireless communication circuit, and the home server can display the information in real time.

The flexible wearable vital sign collection device collects a number of vital sign parameters, as shown in Figure 8, the flexible wearable vital sign collection device is connected to the home server through the wireless communication module 6, and the home server can display and store relevant parameters, and Through broadband access to the Internet, a connection is made with a remote server, and the remote service obtains relevant data and uses it for processing, analysis and decision-making. The flexible wearable vital sign acquisition device communicates with the remote server, transmits the collected data to the remote end in real time, realizes remote real-time monitoring, and can be interconnected with expert systems to achieve targeted health status assessment. Computing technology can also extract useful group laws from large-scale data, and provide reference and guidance for group health management.

Claims (10)

1. A flexible wearable vital sign monitoring device, characterized in that it comprises a multi-layer flexible layer and an acquisition and processing assembly distributed on the flexible layer, the acquisition and processing assembly comprising a microcontroller (1), and the microcontroller (1) Heart rate and blood oxygen concentration sensor (2), body temperature sensor (3), acceleration sensor (4), storage module (5), wireless communication module (6), alarm module (7) and power supply module (8) connected respectively; The multi-layer flexible layer includes a first flexible layer (9), a second flexible layer (10), a third flexible layer (11) and a fourth flexible layer from bottom to top; the fourth flexible layer serves as a package layer, the lower surface of the first flexible layer (9) is provided with an adhesive layer, and the outside of the adhesive layer is provided with a release layer; The first flexible layer (9), the second flexible layer (10) and the third flexible layer (11) include a flexible adhesive layer (13) and an electrical layer (14) arranged in sequence from bottom to top; the fourth flexible layer is a flexible adhesive layer (13); The heart rate and blood oxygen concentration sensor (2) and the body temperature sensor (3) are arranged on the first flexible layer (9); the microcontroller (1), the acceleration sensor (4) and the storage module (5) are arranged on the second flexible layer layer (10); the wireless communication module (6), the alarm module (7) and the power supply module (8) are arranged on the third flexible layer (11). 2 . The flexible wearable vital sign monitoring device according to claim 1 , wherein the adhesive layer adopts a transparent adhesive or a sticker. 3 . 3 . The flexible wearable vital sign monitoring device according to claim 1 , wherein the release layer adopts PC release paper. 4 . 4. A flexible wearable vital sign monitoring device according to claim 1, wherein the material of the flexible adhesive layer (13) is polydimethylsiloxane, polyimide, polyethylene terephthalate Diol esters or aliphatic aromatic random copolyesters. 5 . The flexible wearable vital sign monitoring device according to claim 1 , wherein the electrical layer ( 14 ) is a serpentine circuit prepared from a conductive foil. 6 . 6 . The flexible wearable vital signs monitoring device according to claim 5 , wherein the conductive foil is made of copper foil. 7 . 7 . The flexible wearable vital sign monitoring device according to claim 1 , wherein the flexible layer adopts a rectangular shape, and the four corners of the rectangle are rounded. 8 . 8. A flexible wearable vital sign monitoring device according to claim 1, characterized in that the microcontroller (1) adopts the STM32F103T8T6 chip, the heart rate and blood oxygen concentration sensor (2) adopts the MAX30102 module, and the body temperature sensor (3) The MAX30205MTA module is used, the MPU6050 module is used for the acceleration sensor (4), the SMD buzzer and LED alarm are selected for the alarm module (7), the TF card is used for the storage module (5), and the NRF24L01 module is used for the wireless communication module (6). 9. A monitoring system based on the flexible wearable vital signs monitoring device according to any one of claims 1 to 8, characterized in that the microcontroller (1) is connected to a home server through a wireless communication module (6), and the home The server is used to display and store the vital sign parameters collected and processed by the acquisition and processing component, the home server is connected with the remote server, and the remote server and the expert system are interconnected, for processing, analyzing and making decisions on the vital sign parameters. 10. The preparation process of the flexible wearable vital signs monitoring device according to any one of claims 1 to 8, characterized in that it comprises the following steps: S1. Prepare the first flexible layer (9), the second flexible layer (10) and the third flexible layer (11): spin-coat the flexible glue on the carrier board (12), and paste the flexible glue after curing Conductive foil, cutting out target wires on the conductive foil, peeling off excess conductive foil to obtain an electrical layer (14); then separating the carrier board (12) from the flexible adhesive layer; S2, preparing the fourth flexible layer: spin-coating the flexible adhesive on the carrier plate (12), and after the flexible adhesive is cured, separate the carrier plate (12) from the flexible adhesive layer; S3, arranging correspondingly installed devices on the first flexible layer (9), the second flexible layer (10) and the third flexible layer (11), and connecting adjacent electrical layers (14) through wires; S4, encapsulate and cure the multi-layer flexible layers that have been connected; S5, preparing an adhesive layer on the lower surface of the first flexible layer (9), and wrapping a release layer on the outside of the adhesive layer.

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