A scarf for detecting carotid pulse

Abstract

The utility model provides a kind of scarf of detecting carotid artery pulsation, belong to intelligent wearing technical field.The technical problem of scarf in prior art cannot analyze pulse frequency, and the technical problem that detection equipment is inconvenient to disassemble simultaneously does not have early warning mechanism is solved.Its technical scheme is: a kind of scarf of detecting carotid artery pulsation, including scarf body, fixing device and pulse detection device, fixing device is set on scarf body, and pulse detection device is detachably set on fixing device;Fixing device is provided with outside groove, middle protrusion and inside groove, and the material of fixing device adopts the silica gel material of rich elasticity.The beneficial effects of the utility model are: the utility model takes convenience and comprehensiveness as core, sensor, microprocessor, loudspeaker are simultaneously designed on detachable scarf, integration degree, i.e.the number of devices per unit area, compared with traditional design has reduced, and it is convenient to wear.

Description

Technical Field

[0001] This utility model relates to the field of smart wearable technology, and in particular to a scarf for detecting carotid artery pulsation. Background Technology

[0002] As temperatures gradually drop, scarves become an essential accessory for people going out. However, it is not uncommon for people to experience dizziness, slowed heart rate, or even fainting due to scarves being too tight. This phenomenon is medically known as "carotid sinus syndrome." It refers to a syndrome characterized by dizziness, fainting, tinnitus, and other clinical signs caused by hypersensitivity to the carotid sinus reflex. The symptoms are usually brief, lasting only 1-4 minutes, but sometimes loss of consciousness can occur, lasting up to 20 minutes.

[0003] The carotid sinus is located on the outer side of the neck, where the carotid artery pulsation is most pronounced. The sensitivity of the pressure receptors in the carotid sinus varies from person to person. For people with carotid sinus syndrome, a tight scarf can cause the carotid sinus to mistakenly believe that blood pressure is high and heart rate is too fast, requiring regulation, thus leading to a series of symptoms. Statistics show that the incidence of carotid sinus syndrome is approximately 10%, and the prevalence increases with age, especially after age 50.

[0004] Chinese patent CN104224142A discloses a wearable carotid artery pulsation signal monitoring system and method, which mainly includes a flexible sensor, a signal preprocessing module, a core processing and analysis module, and a data transmission module. The inseparable structure of the sensor and the fabric body makes overall cleaning difficult, affecting hygiene performance; and the entire system needs to be replaced when the sensor is damaged, which is not economical. Furthermore, the system only records physiological parameters without a real-time threshold warning mechanism, delaying user intervention. Utility Model Content

[0005] The purpose of this invention is to provide a scarf that can analyze pulse frequency, has easy disassembly of the detection device, and has an early warning mechanism for detecting carotid artery pulsation.

[0006] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: a scarf for detecting carotid artery pulsation, comprising a scarf body, a fixing device, and a pulse detection device, wherein the fixing device is disposed on the scarf body, and the pulse detection device is detachably disposed on the fixing device;

[0007] The fixing device is provided with an outer groove, a middle protrusion and an inner groove, and the fixing device is made of elastic silicone material. Because it is made of silicone and other materials, it can fit tightly with the detachable pulse detection device, and the device can be removed when the scarf needs to be washed.

[0008] The pulse detection device includes a sensor body, a microprocessor, and an outer panel. The sensor body is embedded in an inner groove, and the interior of the central protrusion forms an accommodating space. The microprocessor is installed in the accommodating space of the central protrusion, and the outer panel is installed in an outer groove. The sensor body is made of flexible material, which fits naturally with the skin and reduces patient discomfort. It is connected to the microprocessor via wires.

[0009] Furthermore, the outer panel is equipped with a speaker, a USB port, and a power switch. The speaker, USB port, and power switch are all located on the side of the scarf body away from the skin. The components on the outer panel are connected to the microprocessor via wires.

[0010] Furthermore, the sensor body integrates a piezoelectric flexible pressure sensor and a capacitive sensor. The sensor body is arranged on the scarf body at the position corresponding to the human carotid artery, with its detection surface facing the skin.

[0011] Furthermore, the piezoelectric flexible pressure sensor is located on one side near the end of the scarf body, and the capacitive sensor is located on one side near the upper end of the scarf body.

[0012] Furthermore, the piezoelectric flexible pressure sensor incorporates a piezoelectric element and a measurement circuit. The piezoelectric element converts the pressure signal into an electrical signal, and the measurement circuit amplifies and converts the electrical signal. The piezoelectric element and the measurement circuit are connected by wires.

[0013] Furthermore, the capacitive sensor incorporates two opposing flexible electrode layers. One of the flexible electrode layers is a sensing electrode used to receive changes in physical quantities caused by carotid artery pulsation, and the other flexible electrode layer is a reference electrode used to provide a stable reference potential. A dielectric layer is disposed between the two flexible electrode layers, and the two flexible electrode layers are respectively connected to the measurement circuit via wires.

[0014] Furthermore, the sensor body is connected to the microprocessor via wires to transmit the electrical signals measured by the piezoelectric flexible pressure sensor and the capacitive sensor to the microprocessor.

[0015] Furthermore, the microprocessor can transmit the converted pulse frequency and the pressure value of the scarf on the neck to the mobile device via Bluetooth.

[0016] Furthermore, the microprocessor includes a comparator circuit, an alarm drive circuit, a memory chip, and a power management module. The input port of the comparator circuit is connected to a threshold setting module composed of adjustable resistors and is connected to the sensor body via wires. The output of the alarm drive circuit is connected to a speaker via a transistor amplifier circuit. The memory chip is an AT24C256 EEPROM used to store preset pulse threshold parameters. The power management module is connected to a USB interface, a power switch, and the sensor body via wires.

[0017] Furthermore, the fabric layer of the scarf body is 5-10mm thick, making it more suitable for users to wear in colder seasons.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] 1. This scarf for detecting carotid artery pulse is equipped with a speaker that can sound an alarm, so as to promptly remind the user to adjust the tightness of the scarf; and the speaker is located on the outer panel rather than inside the scarf body, so the sound is clear when the alarm is sounded.

[0020] 2. The scarf for detecting carotid artery pulse has a fixing device consisting of an outer groove, a middle protrusion, and an inner groove. Combined with a highly elastic silicone material, it can securely embed the pulse detection device between the groove and the protrusion, and is easy to disassemble without affecting the washing of the scarf or the user's normal life.

[0021] 3. This scarf that detects carotid artery pulsation has a built-in microprocessor that can compare and analyze the converted pressure value and pulse rate to distinguish whether a downward trend in pulse rate is caused by an overly tight scarf or by changes in the user's own condition; and to distinguish whether a pulse rate below the normal value of 60 beats / minute is caused by an overly tight scarf or by individual differences in the user.

[0022] 4. This scarf that detects carotid artery pulsation uses a microprocessor to convert the electrical signal sent by the piezoelectric flexible pressure sensor into the pressure value of the scarf on the neck, and the electrical signal sent by the capacitive sensor into the carotid artery pulsation frequency. The signals are then transmitted to a mobile device via Bluetooth, allowing the user to view the pressure value and carotid artery pulsation frequency at any time and adjust the tightness of the scarf accordingly.

[0023] 5. This utility model focuses on convenience and comprehensiveness, and integrates sensors, microprocessors and speakers into a detachable scarf. The integration level, i.e. the number of devices per unit area, is reduced compared to traditional designs, making it easier to wear. Attached Figure Description

[0024] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0025] Figure 1 This is a schematic diagram of the outer structure of the scarf for detecting carotid artery pulsation according to the present invention.

[0026] Figure 2 This is a schematic diagram of the inner side (i.e. the side closest to the skin) of the scarf used to detect carotid artery pulsation according to this utility model.

[0027] Figure 3 This is a side cross-sectional view of the scarf for detecting carotid artery pulsation according to the present invention.

[0028] Figure 4 This is a schematic diagram of the detachable pulse detection device of this utility model when it is separated.

[0029] Figure 5 This is a schematic diagram of the scarf body and fixing device after the pulse detection device of this utility model has been disassembled.

[0030] The attached figures are labeled as follows: 1. Scarf body; 2. Outer panel; 21. Speaker; 22. USB interface; 23. Power switch; 3. Sensor body; 31. Piezoelectric flexible pressure sensor; 32. Capacitive sensor; 4. Fixing device; 41. Outer groove; 42. Middle protrusion; 43. Inner groove; 5. Microprocessor; 6. Pulse detection device. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Of course, the specific embodiments described herein are only for explaining this utility model and are not intended to limit it.

[0032] Example

[0033] like Figures 1-5 As shown, this embodiment provides a scarf for detecting carotid artery pulsation, including a scarf body 1, a fixing device 4, and a pulse detection device 6. The fixing device 4 is disposed on the scarf body 1, and the pulse detection device 6 is detachably disposed on the fixing device 4. The fixing device 4 is provided with an outer groove 41, a middle protrusion 42, and an inner groove 43. The fixing device 4 is made of elastic silicone material. The use of silicone and other materials can tightly fit the detachable pulse detection device 6, and the device can be removed when the scarf needs to be washed.

[0034] The pulse detection device 6 includes a sensor body 3, a microprocessor 5, and an outer panel 2. The sensor body 3 is embedded in the inner groove 43, and the interior of the middle protrusion 42 forms an accommodating space. The microprocessor 5 is installed in the accommodating space of the middle protrusion 42. The outer panel 2 is fixed in the outer groove 41. The sensor body 3 is made of flexible material, which fits naturally with the skin and reduces patient discomfort. It is connected to the microprocessor 5 through wires.

[0035] The outer panel 2 is equipped with a speaker 21, a USB interface 22, and a power switch 23. These components are all located on the side of the scarf body 1 furthest from the skin. All components on the outer panel 2 are connected to the microprocessor 5 via wires. If the microprocessor 5 analyzes the pulse rate and finds it to be decreasing, and the pressure of the scarf on the neck exceeds a set threshold, the speaker 21 will sound an alarm, reminding the user to adjust the scarf's tightness in time.

[0036] The sensor body 3 integrates a piezoelectric flexible pressure sensor 31 and a capacitive sensor 32. The sensor body 3 is arranged on the scarf body 1 at the position corresponding to the human carotid artery, with its detection surface facing the skin. The piezoelectric flexible pressure sensor 31 is located on the side near the end of the scarf body 1, and the capacitive sensor 32 is located on the side near the upper end of the scarf body 1. The piezoelectric flexible pressure sensor 31 has a built-in piezoelectric element and a measurement circuit. The piezoelectric element is used to convert the pressure signal into an electrical signal, and the measurement circuit is used to amplify and convert the electrical signal. The piezoelectric element and the measurement circuit are connected by wires. The capacitive sensor 32 has two flexible electrode layers arranged opposite to each other. One of the flexible electrode layers is a sensing electrode, used to receive the physical quantity change caused by the carotid artery pulsation, and the other flexible electrode layer is a reference electrode, used to provide a stable reference potential. A dielectric layer is provided between the two flexible electrode layers, and the two flexible electrode layers are respectively connected to the measurement circuit by wires.

[0037] The microprocessor 5 can transmit the converted pulse frequency and the pressure value of the scarf body 1 on the neck to the mobile terminal via Bluetooth. The microprocessor 5 is equipped with a comparator circuit, an alarm drive circuit, a storage chip and a power management module. The input port of the comparator circuit is connected to a threshold setting module composed of adjustable resistors and is connected to the sensor body 3 via wires. The output of the alarm drive circuit is connected to the speaker 21 via a transistor amplifier circuit. The storage chip is an AT24C256 EEPROM used to store preset pulse threshold parameters. The power management module is connected to the USB interface 22, the power switch 23 and the sensor body 3 via wires.

[0038] The fabric layer of the scarf body 1 is 5-10mm thick, making it more suitable for users to wear in colder seasons.

[0039] When using:

[0040] The user needs to charge the pulse detection device 6 via the USB interface 22. After charging, the pulse detection device 6 is installed on the fixing device 4. The sensor body 3 is placed in the inner grooves 43 on both sides, the microprocessor 5 is placed on the middle protrusion 42 on both sides, and the outer panel 2 is placed in the outer grooves 41 on both sides. Since the fixing device 4 is made of elastic silicone material, it can be installed by slightly opening the fixing device 4. The operation is convenient. Then, press the power switch 23 to start the device. When the user wears the scarf, the way the scarf is worn can be finely adjusted to obtain a satisfactory comfort while ensuring that the pulse detection device 6 is close to the carotid artery area. At the same time, the sensor body 3 should be pressed tightly against the skin to facilitate the detection of the carotid artery pulsation frequency and the pressure value of the scarf on the neck.

[0041] After the user puts on the scarf, when the scarf applies pressure to the neck, the piezoelectric element in the piezoelectric flexible pressure sensor 31 deforms. The amount of charge generated by the deformation is proportional to the pressure. The charge is amplified by an amplifier with a charge sensitivity of 1V / pC and converted into a voltage signal of 0.1 to 5V. The microprocessor 5 calculates the real-time pressure value based on this signal. At the same time, the slight displacement caused by the carotid artery pulsation will affect the change in capacitance value in the capacitive sensor 32. That is, a displacement of 40μm causes a capacitance change of about 0.72pF. The displacement is proportional to the capacitance change. The capacitive sensor 32 converts this capacitance change into an electrical signal, which is then processed by an amplifier circuit and a filter to obtain a clearer electrical signal before being transmitted to the microprocessor 5 and converted into pulse frequency.

[0042] The microprocessor 5 analyzes the pressure value and pulse rate, setting a pressure threshold of 2N and a minimum normal pulse rate of 60 beats / min. If the pressure value is greater than the set threshold and the pulse rate is lower than the minimum normal value and shows a decreasing trend, it is determined that the scarf is too tight, and the speaker 21 is controlled to sound an alarm. If the pressure value is not greater than the set threshold but the pulse rate is higher than the minimum normal value and shows a decreasing trend, it is considered that the user is transitioning from an excited state to a calm state or that the external environment is changing from hot to cold, and the speaker 21 does not sound an alarm. If the pressure value is not greater than the set threshold but the pulse rate is always slightly lower than the minimum normal value, it is considered that the user is engaged in an athletic profession or that it is due to their own pathological factors, and the speaker 21 does not sound an alarm. After the user connects the mobile device to the device via Bluetooth, they can check the pulse rate and pressure value at any time and adjust the tightness of the scarf in time according to the prompts of the speaker 21 to prevent the phenomenon of "carotid sinus syndrome".

[0043] During use, the user can turn off the device at any time via the power switch 23 on the outer panel 2. When washing the scarf, the user can use their hand to slightly open the elastic fixing device 4 and remove the detachable pulse detection device 6.

[0044] Since the fixing device 4 is made of silicone and occupies a certain volume, the fabric layer thickness of the scarf body 1 is 5-10mm, which is more suitable for users to wear in colder seasons.

[0045] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A scarf for detecting carotid artery pulsation, characterized in that, It includes a scarf body (1), a fixing device (4) and a pulse detection device (6). The fixing device (4) is disposed on the scarf body (1), and the pulse detection device (6) is detachably disposed on the fixing device (4). The fixing device (4) is provided with an outer groove (41), a middle protrusion (42) and an inner groove (43), and the fixing device (4) is made of elastic silicone material. The pulse detection device (6) includes a sensor body (3), a microprocessor (5) and an outer panel (2). The sensor body (3) is embedded in the inner groove (43). The interior of the middle protrusion (42) forms an accommodating space. The microprocessor (5) is installed in the accommodating space of the middle protrusion (42). The outer panel (2) is installed in the outer groove (41).

2. The scarf for detecting carotid artery pulsation according to claim 1, characterized in that, The outer panel (2) is provided with a speaker (21), a USB interface (22) and a power switch (23), all of which are located on the side of the scarf body (1) away from the skin.

3. A scarf for detecting carotid artery pulsation according to claim 2, characterized in that, The sensor body (3) integrates a piezoelectric flexible pressure sensor (31) and a capacitive sensor (32). The sensor body (3) is arranged on the scarf body (1) at the position corresponding to the human carotid artery, and its detection surface is set towards the skin side.

4. The scarf for detecting carotid artery pulsation according to claim 3, characterized in that, The piezoelectric flexible pressure sensor (31) is located on one side near the end of the scarf body (1), and the capacitive sensor (32) is located on one side near the upper end of the scarf body (1).

5. A scarf for detecting carotid artery pulsation according to claim 4, characterized in that, The piezoelectric flexible pressure sensor (31) has a built-in piezoelectric element and a measuring circuit. The piezoelectric element is used to convert the pressure signal into an electrical signal, and the measuring circuit is used to amplify and convert the electrical signal. The piezoelectric element and the measuring circuit are connected by wires.

6. A scarf for detecting carotid artery pulsation according to claim 4, characterized in that, The capacitive sensor (32) has two flexible electrode layers arranged opposite to each other. One of the flexible electrode layers is a sensing electrode used to receive changes in physical quantities caused by carotid artery pulsation, and the other flexible electrode layer is a reference electrode used to provide a stable reference potential. A dielectric layer is provided between the two flexible electrode layers, and the two flexible electrode layers are respectively connected to the measurement circuit through wires.

7. A scarf for detecting carotid artery pulsation according to claim 3, characterized in that, The sensor body (3) is connected to the microprocessor (5) via wires to transmit the electrical signals measured by the piezoelectric flexible pressure sensor (31) and the capacitive sensor (32) to the microprocessor (5).

8. A scarf for detecting carotid artery pulsation according to claim 1, characterized in that, The microprocessor (5) can transmit the converted pulse frequency and the pressure value of the scarf body (1) on the neck to the mobile device via Bluetooth.

9. A scarf for detecting carotid artery pulsation according to claim 8, characterized in that, The microprocessor (5) is equipped with a comparator circuit, an alarm drive circuit, a memory chip and a power management module. The input port of the comparator circuit is connected to a threshold setting module composed of adjustable resistors and is connected to the sensor body (3) through wires. The output of the alarm drive circuit is connected to a speaker (21) through a transistor amplifier circuit. The memory chip is an AT24C256 EEPROM used to store preset pulse threshold parameters. The power management module is connected to the USB interface (22), the power switch (23) and the sensor body (3) through wires respectively.

10. A scarf for detecting carotid artery pulsation according to claim 1, characterized in that, The fabric layer thickness of the scarf body (1) is 5-10 mm.

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