Monitoring and maintaining method for preventing and treating formation of arteriovenous fistula aneurysm

Abstract

The invention discloses a monitoring and maintenance method for preventing and treating formation of arteriovenous fistula aneurysm, which avoids operative traumatic treatment of pseudoaneurysm and comprises monitoring and maintenance of the diameter and blood flow of arteriovenous fistula and far infrared maintenance of arteriovenous fistula, and the inner diameter and blood flow of arteriovenous fistula are directly monitored through an MEMS ultrasonic patch. When the inner diameter of the internal fistula exceeds the upper limit value, the air bag is pressurized to compress the internal fistula so as to reduce the inner diameter, and when the inner diameter of the internal fistula is lower than the lower limit value, the air bag is released to relax the internal fistula so as to increase the inner diameter; internal fistula is maintained through the graphene far infrared patch, the temperature of the internal fistula is monitored through the flexible film temperature sensor, and when the temperature exceeds a set value, the graphene far infrared patch is closed. The pressure applied to the internal arteriovenous fistula is adjusted by detecting the inner diameter of the internal arteriovenous fistula, meanwhile, the internal arteriovenous fistula is irradiated with infrared rays, the internal arteriovenous fistula can be monitored and maintained for a long time, and internal arteriovenous fistula aneurysm is prevented and treated.

Description

Technical Field

[0001] The present invention relates to the technical field of wearable medical devices, and in particular to a monitoring and maintenance method for preventing and treating arteriovenous fistula aneurysm formation, while also avoiding surgical trauma intervention treatment. Background Art

[0002] Maintenance hemodialysis is an effective way to prolong the life of patients with uremia and improve their quality of life. Autologous arteriovenous fistula (AVF) is the preferred vascular access for maintenance hemodialysis treatment, with the advantages of long service life, few complications, and good patency. Aneurysm is one of the most common long-term complications of AVF. It not only affects the appearance of the patient's arm, but the long-term increase in blood flow will also increase the burden on the patient's heart, leading to heart failure. In addition, aneurysms are at high risk of rupture and massive bleeding, which can endanger the patient's life in severe cases. In addition, aneurysms larger than 3 cm require surgical resection, which increases the patient's pain and economic burden.

[0003] Arteriovenous fistula inner diameter monitoring and elastic pressure protection sleeve as auxiliary equipment can be used to help patients prevent and assist in the treatment of AVF aneurysm formation. In addition, this device also has an infrared irradiation function that can be turned on freely to promote local blood circulation and accelerate metabolism through thermal effects, which helps to relieve pain and inflammation caused by dialysis puncture. Summary of the invention

[0004] Purpose of the invention: The present invention provides a monitoring and maintenance method for preventing and treating arteriovenous fistula aneurysm formation. Its technical purpose is to solve the current problems of AVF aneurysm formation and its secondary AVF dysfunction and heart failure due to lack of monitoring and maintenance. It proposes to prevent the formation of aneurysms by pressurizing the fistula by monitoring the inner diameter of the AVF.

[0005] Technical solution: A monitoring and maintenance method for preventing and treating arteriovenous fistula aneurysm formation, wherein the arteriovenous fistula inner diameter, blood flow monitoring and protection device includes:

[0006] A controller, comprising a first Velcro, a strap, a plastic shell, an air path interface, a circuit interface, a touch screen, a power button, a charging interface, a single-chip microcomputer, a lithium battery, an audio output module, a linear motor, a micro air pump and a micro solenoid valve; the first Velcro is placed at both ends of the strap; the strap is connected to the plastic shell; the touch screen is embedded in the upper surface of the plastic shell; the power button and the charging interface are placed on the left side of the plastic shell; the air path interface and the circuit interface are placed on the right side of the plastic shell; the single-chip microcomputer, the lithium battery, the audio output module, the linear motor, the micro air pump and the micro solenoid valve are all placed inside the plastic shell, and the lithium battery, the audio output module, the linear motor, the micro air pump and the micro solenoid valve are all placed below the single-chip microcomputer; the touch screen, the power button, the charging interface, the circuit interface, the lithium battery, the micro air pump and the micro solenoid valve are all connected to the single-chip microcomputer;

[0007] A multifunctional sleeve, comprising a sleeve, an airbag, a second Velcro, a flexible film temperature sensor, a MEMS ultrasonic patch, a graphene far-infrared patch, an air circuit connecting tube and a circuit connecting tube; the second Velcro is placed at both ends of the sleeve; the airbag is placed inside the sleeve; the flexible film temperature sensor, the MEMS ultrasonic patch and the graphene far-infrared patch are all placed on the lower surface of the sleeve, the MEMS ultrasonic patch is placed on the right side of the flexible film temperature sensor, and the graphene far-infrared patch is placed on the right side of the MEMS ultrasonic patch; one end of the air circuit connecting tube passes through the sleeve and is connected to the airbag; one end of the circuit connecting tube passes through the sleeve and is connected to the flexible film temperature sensor, the MEMS ultrasonic patch and the graphene far-infrared patch;

[0008] The other end of the gas circuit connecting tube is connected to the gas circuit interface; the other end of the circuit connecting tube is used to connect to the circuit interface;

[0009] Monitoring and maintenance methods, including:

[0010] AVF diameter and blood flow monitoring and maintenance, including setting the upper limit, lower limit and normal value of the AVF inner diameter in the controller; the MEMS ultrasonic patch collects AVF inner diameter and blood flow data and transmits them to the single chip microcomputer, and the single chip microcomputer compares the data with the upper limit and lower limit; when the inner diameter of the fistula is greater than the set upper limit, the single chip microcomputer simultaneously transmits signals to the linear motor and the micro air pump, the linear motor generates a vibration reminder, and the micro air pump inflates the airbag to compress the arteriovenous fistula until the MEMS ultrasonic patch detects that the diameter of the AVF is compressed to a normal value, and the micro air pump stops inflating the airbag; when the inner diameter of the fistula is less than the set lower limit, the single chip microcomputer simultaneously transmits signals to the linear motor and the micro solenoid valve, the linear motor generates a vibration reminder, and the micro solenoid valve deflates the airbag until the MEMS ultrasonic patch detects that the diameter of the arteriovenous fistula returns to a normal value, and the micro solenoid valve stops deflation of the airbag;

[0011] AVF far-infrared maintenance includes setting the normal value of the dynamic AVF temperature in the controller; the flexible film temperature sensor detects the AVF temperature and transmits the data to the single-chip microcomputer, and the single-chip microcomputer compares the data with the set normal value; when the fistula temperature is lower than the normal value, the single-chip microcomputer transmits a signal to the graphene far-infrared patch, and the graphene far-infrared patch maintains the arteriovenous fistula by infrared irradiation. When the flexible film temperature sensor detects that the temperature exceeds the set normal value, the graphene far-infrared patch is turned off.

[0012] The AVF internal fistula diameter, blood flow monitoring and maintenance function and the AVF far-infrared maintenance function can be independently controlled to be turned on or off by the controller.

[0013] The AVF inner diameter and blood flow detected by the MEMS ultrasonic patch and the AVF temperature detected by the flexible film temperature sensor are displayed on the touch display screen and output through the audio output module.

[0014] The beneficial effects of the present invention are as follows:

[0015] The present invention is simple to operate, light and portable, and can achieve long-term monitoring and maintenance of the inner diameter of AVF, and is suitable for a wide range of maintenance hemodialysis patients.

[0016] The multifunctional sleeve of the present invention adopts flexible materials, can perfectly fit arteriovenous fistulas of different positions and sizes, and improves applicability and comfort; the controller and the multifunctional sleeve adopt a split structure, which is convenient for adjustment and maintenance;

[0017] The present invention directly monitors the inner diameter and blood flow of the arteriovenous fistula through a MEMS ultrasonic patch. When the inner diameter of the fistula exceeds the upper limit, the airbag is pressurized to compress the fistula to reduce the inner diameter. When the inner diameter of the fistula is lower than the lower limit, the airbag is released to relax the fistula to increase the inner diameter.

[0018] The present invention maintains the fistula through a graphene far-infrared patch and monitors the temperature of the fistula through a flexible film temperature sensor, and turns off the graphene far-infrared patch when the temperature exceeds a set value;

[0019] The built-in artificial intelligence algorithm of the present invention can analyze and process the stored arteriovenous fistula diameter and blood flow data, regularly give correction suggestions for the upper and lower limits of the arteriovenous fistula diameter, and predict and evaluate the state of the arteriovenous fistula, especially the formation of aneurysms. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the effect of wearing the application on the arm;

[0021] Figure 2 It is a schematic diagram of the external structure of the controller;

[0022] Figure 3 It is a schematic diagram of the internal structure of the controller;

[0023] Figure 4 It is a structural schematic diagram of a multifunctional sleeve;

[0024] Figure 5 This is a schematic diagram of the working principle of this application;

[0025] In the figure: 1-controller; 2-air circuit connecting tube; 3-circuit connecting tube; 4-multifunctional sleeve; 5-first Velcro; 6-bandage; 7-plastic shell; 8-air circuit interface; 9-circuit interface; 10-touch screen; 11-power button; 12-charging interface; 13-single-chip microcomputer; 14-lithium battery; 15-audio output module; 16-linear motor; 17-micro air pump; 18-micro solenoid valve; 19-sleeve; 20-airbag; 21-second Velcro; 22-flexible film temperature sensor; 23-MEMS ultrasonic patch; 24-graphene far-infrared patch. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings.

[0027] like Figure 1 As shown, the arteriovenous fistula inner diameter monitoring and protection device of the present invention comprises:

[0028] like Figure 2 and Figure 3As shown, the controller 1 includes a first Velcro 5, a strap 6, a plastic shell 7, an air circuit interface 8, a circuit interface 9, a touch screen 10, a power button 11, a charging interface 12, a single-chip computer 13, a lithium battery 14, an audio output module 15, a linear motor 16, a micro air pump 17 and a micro solenoid valve 18; the first Velcro 5 is placed at both ends of the strap 6; the strap 6 is connected to the plastic shell 7; the touch screen 10 is embedded in the upper surface of the plastic shell 7; the power button 11 and the charging interface 12 are placed on the left side of the plastic shell 7; the air circuit interface 8 and the circuit interface 9 are placed on the left side of the plastic shell 7. The other side of the plastic shell 7; the single-chip microcomputer 13, the lithium battery 14, the audio output module 15, the linear motor 16, the micro air pump 17 and the micro solenoid valve 18 are all placed inside the plastic shell 7, and the lithium battery 14, the audio output module 15, the linear motor 16, the micro air pump 17 and the micro solenoid valve 18 are all placed below the single-chip microcomputer 13; the touch display screen 10, the power button 11, the charging interface 12, the circuit interface 9, the lithium battery 14, the audio output module 15, the linear motor 16, the micro air pump 17 and the micro solenoid valve 18 are all connected to the single-chip microcomputer 13.

[0029] like Figure 4 As shown, the multifunctional sleeve 4 includes a sleeve 19, an airbag 20, a second Velcro 21, a flexible film temperature sensor 22, a MEMS ultrasonic patch 23, and a graphene far-infrared patch 24; the second Velcro 21 is placed at both ends of the sleeve 19; the airbag 20 is placed inside the sleeve 19; the flexible film temperature sensor 22, the MEMS ultrasonic patch 23 and the graphene far-infrared patch 24 are arranged in sequence on the lower surface of the sleeve 19; one end of the air circuit connecting tube 2 passes through the sleeve 19 to be connected to the airbag 20, and the other end of the air circuit connecting tube 2 is connected to the air circuit interface 8; one end of the circuit connecting tube 3 passes through the sleeve 19 to be connected to the flexible film temperature sensor 22, the MEMS ultrasonic patch 23 and the graphene far-infrared patch 24 respectively, and the other end of the circuit connecting tube 3 is connected to the circuit interface 9.

[0030] The above-mentioned binding belt 6 and sleeve 19 are both made of nylon material; the airbag 20 is made of polyvinyl chloride material; and the air path connecting pipe 2 is made of polyurethane material.

[0031] The above-mentioned strap 6 is connected to the plastic shell 7 through a snap-on structure; the first Velcro 5 is connected to the strap 6 by sewing; the second Velcro 21, the flexible film temperature sensor 22, the MEMS ultrasonic patch 23 and the graphene far-infrared patch 24 are all connected to the cuff 19 by sewing.

[0032] like Figure 5 As shown, the working principle of the present invention is as follows:

[0033] A) Monitoring and maintenance of arteriovenous fistula diameter: the upper limit, lower limit and normal value of the arteriovenous fistula inner diameter are set in the controller 1; the MEMS ultrasonic patch 21 collects the arteriovenous fistula inner diameter and blood flow data and transmits them to the single chip microcomputer 13, and the single chip microcomputer 13 compares the collected arteriovenous fistula inner diameter data with the set upper limit and lower limit; when the inner diameter of the fistula is greater than the set upper limit, the single chip microcomputer 13 simultaneously transmits signals to the linear motor 16 and the micro air pump 17, the linear motor 16 generates a vibration reminder, and the micro air pump 17 inflates the airbag 20. The micro air pump 17 stops inflating the airbag 20 by using air to compress the arteriovenous fistula until the MEMS ultrasonic patch 23 detects that the diameter of the arteriovenous fistula is compressed to a normal value. When this happens, the micro air pump 17 stops inflating the airbag 20. When the inner diameter of the fistula is smaller than the set lower limit, the microcontroller 13 transmits signals to the linear motor 15 and the micro solenoid valve 18 at the same time. The linear motor 16 generates a vibration reminder, and the micro solenoid valve 18 deflates the airbag 20 until the MEMS ultrasonic patch 23 detects that the diameter of the arteriovenous fistula returns to a normal value. At this time, the micro solenoid valve 18 stops deflating the airbag 20.

[0034] B) Arteriovenous fistula far-infrared maintenance: set the normal value of the arteriovenous fistula temperature in the controller 1; the flexible film temperature sensor 22 detects the arteriovenous fistula temperature and transmits it to the single-chip microcomputer 13, and the single-chip microcomputer 13 compares the arteriovenous fistula temperature with the set normal value: when the fistula temperature is lower than the normal value, the single-chip microcomputer 13 transmits a signal to the graphene far-infrared patch 24, and the graphene far-infrared patch 24 maintains the arteriovenous fistula by infrared irradiation; when the flexible film temperature sensor 22 detects that the temperature exceeds the set normal value, the graphene far-infrared patch 24 is turned off.

[0035] Furthermore, the above-mentioned AVF diameter, blood flow monitoring, and AVF far-infrared maintenance functions can be individually controlled to be turned on or off.

[0036] The AVF inner diameter and blood flow detected by the MEMS ultrasonic patch 21 and the AVF temperature detected by the flexible film temperature sensor 22 are displayed on the touch display screen 10 and output through the audio output module.

[0037] The detection frequencies of the above-mentioned MEMS ultrasonic patch and flexible film temperature sensor can be set individually.

[0038] The above-mentioned single-chip computer 13 can store the arteriovenous fistula diameter and blood flow data detected by the MEMS ultrasonic patch 23, and the artificial intelligence algorithm built into the single-chip computer 13 can process and analyze the stored arteriovenous fistula diameter and blood flow data, regularly give correction suggestions for the upper and lower limits of the arteriovenous fistula diameter, and predict and evaluate the state of the arteriovenous fistula, especially the formation of aneurysms. When it is assessed that the arteriovenous fistula needs maintenance or an arteriovenous aneurysm is formed, the touch display screen 10 will generate corresponding text prompts, the audio output module 15 will generate corresponding voice prompts, and the linear motor 16 will generate corresponding vibration prompts.

[0039] The user fixes the controller 1 on the upper arm through the first Velcro 5, fixes the multifunctional cuff 4 on the arteriovenous fistula through the second Velcro 21, and connects the air circuit connecting tube 2 to the air circuit interface 8, and the circuit connecting tube 3 to the circuit interface 9; presses the power button 11 to turn on the controller 1, and selects to enable the AVF diameter monitoring and maintenance function and the AVF far-infrared maintenance function; sets the upper limit, lower limit and normal value of the AVF inner diameter, as well as the lower limit and normal value of the AVF temperature on the controller 1; the MEMS ultrasonic patch 23 collects the AVF inner diameter data And transmit it to the single-chip microcomputer 13, at the same time, the flexible film temperature sensor 22 detects the AVF temperature and transmits it to the single-chip microcomputer 13; when the inner diameter of the AVF is greater than the set upper limit value, the linear motor 16 generates vibration to remind the user, and at the same time the micro air pump 17 inflates the airbag 20, compressing the AVF until the MEMS ultrasonic patch 23 detects that the AVF diameter reaches a normal value, at which time the micro air pump 17 stops inflating the airbag 20; when the inner diameter of the AVF is less than the set lower limit value, the linear motor 16 generates vibration to remind, and at the same time the micro solenoid valve 18 relieves the pressure on the airbag 20. The arteriovenous fistula is dilated until the MEMS ultrasonic patch 23 detects that the AVF diameter reaches a normal value, at which time the micro solenoid valve 18 stops relieving the pressure on the airbag 20; at the same time, the flexible film temperature sensor 22 detects the AVF temperature. When the AVF temperature is lower than the set normal value, the graphene far-infrared patch 24 maintains the AVF by infrared irradiation; when the flexible film temperature sensor 22 detects that the fistula temperature exceeds the set normal value, the graphene far-infrared patch 24 is closed.

[0040] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the contents of this specification. These embodiments selected and specifically described in this specification are to better explain the principles and practical applications of the present invention, so that technicians in the relevant technical field can better understand and use the present invention. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, shall make equivalent replacements or changes according to the technical scheme of the present invention and its inventive concept, which shall be covered within the protection scope of the present invention.

Claims

1. A monitoring and maintenance method for preventing and treating arteriovenous fistula aneurysm formation, wherein: The arteriovenous fistula inner diameter, blood flow monitoring and protection devices include: The controller (1) comprises a first Velcro (5), a binding strap (6), a plastic shell (7), an air path interface (8), a circuit interface (9), a touch screen (10), a power button (11), a charging interface (12), a single chip microcomputer (13), a lithium battery (14), an audio output module (15), a linear motor (16), a micro air pump (17) and a micro solenoid valve (18); the first Velcro (5) is placed at both ends of the binding strap (6); the binding strap (6) is connected to the plastic shell (7); the touch screen (10) is embedded in the upper surface of the plastic shell (7); the power button (11) and the charging interface (12) are placed on the left side of the plastic shell (7); the air path interface (8) and the circuit interface (9) are placed on the right side of the plastic shell (7); Side; the single chip microcomputer (13), the lithium battery (14), the audio output module (15), the linear motor (16), the micro air pump (17) and the micro solenoid valve (18) are all placed inside the plastic shell (7); the lithium battery (14), the audio output module (15), the linear motor (16), the micro air pump (17) and the micro solenoid valve (18) are all placed below the single chip microcomputer (13); the touch display screen (10), the power button (11), the charging interface (12), the circuit interface (9), the lithium battery (14), the audio output module (15), the linear motor (16), the micro air pump (17) and the micro solenoid valve (18) are all connected to the single chip microcomputer (13); A multifunctional sleeve (4) comprises a sleeve (19), an airbag (20), a second Velcro (21), a flexible thin film temperature sensor (22), a MEMS ultrasonic patch (23), a graphene far-infrared patch (24), an air path connecting tube (2) and a circuit connecting tube (3); the second Velcro (21) is placed at both ends of the sleeve (19); the airbag (20) is placed inside the sleeve (19); the flexible thin film temperature sensor (22), the MEMS ultrasonic patch (23) and the graphene far-infrared patch (24) are all placed The lower surface of the sleeve (19), the MEMS ultrasonic patch (23) is placed on the right side of the flexible thin film temperature sensor (22), and the graphene far-infrared patch (24) is placed on the right side of the MEMS ultrasonic patch (23); one end of the air path connecting tube (2) passes through the sleeve (19) to be connected to the airbag (20); one end of the circuit connecting tube (3) passes through the sleeve (19) to be connected to the flexible thin film temperature sensor (22), the MEMS ultrasonic patch (23) and the graphene far-infrared patch (24); The other end of the gas circuit connection tube (2) is connected to the gas circuit interface (8); the other end of the circuit connection tube (3) is connected to the circuit interface (9); The invention is characterized by comprising: The diameter and blood flow of the arteriovenous fistula are monitored and maintained. The upper limit, lower limit and normal value of the inner diameter of the arteriovenous fistula are set in the controller (1); the MEMS ultrasonic patch (21) collects the inner diameter and blood flow data of the arteriovenous fistula and transmits them to the single chip computer (13), and the single chip computer (13) compares the data with the upper limit and lower limit; when the inner diameter of the fistula is greater than the set upper limit, the single chip computer (13) simultaneously transmits a signal to the linear motor (16) and the micro air pump (17), the linear motor (16) generates a vibration reminder, and the micro air pump (17) inflates the airbag (20) to compress the arteriovenous fistula. Until the MEMS ultrasonic patch (23) detects that the diameter of the arteriovenous fistula is compressed to a normal value, the micro air pump (17) stops inflating the airbag (20); when the inner diameter of the fistula is less than a set lower limit, the single chip computer (13) simultaneously transmits signals to the linear motor (16) and the micro solenoid valve (18), the linear motor (16) generates a vibration reminder, and the micro solenoid valve (18) deflates the airbag (20) until the MEMS ultrasonic patch (23) detects that the diameter of the arteriovenous fistula returns to a normal value, at which point the micro solenoid valve (18) stops deflation of the airbag (20); Arteriovenous fistula far-infrared maintenance, including setting a normal value of the arteriovenous fistula temperature in the controller (1); the flexible film temperature sensor (22) detects the arteriovenous fistula temperature and transmits data to the single chip computer (13), and the single chip computer (13) compares the data with the set normal value; when the fistula temperature is lower than the normal value, the single chip computer (13) transmits a signal to the graphene far-infrared patch (24), and the graphene far-infrared patch (24) maintains the arteriovenous fistula by infrared irradiation, and when the flexible film temperature sensor (22) detects that the temperature exceeds the set normal value, the graphene far-infrared patch (24) is turned off.

2. The method for monitoring and maintaining an arteriovenous fistula according to claim 1, characterized in that: The arteriovenous fistula diameter, blood flow monitoring and maintenance function and the arteriovenous fistula far-infrared maintenance function are independently controlled to be turned on or off by the controller (1).

3. The method for monitoring and maintaining an arteriovenous fistula according to claim 1, characterized in that: The inner diameter and blood flow of the arteriovenous fistula detected by the MEMS ultrasonic patch (23) and the temperature of the arteriovenous fistula detected by the flexible thin film temperature sensor (22) can be displayed on the touch display screen (10) and output through the audio output module (15).

4. The method for monitoring and maintaining an arteriovenous fistula according to claim 1, characterized in that: The detection frequencies of the MEMS ultrasonic patch (23) and the flexible thin film temperature sensor (24) can be set independently.

5. The method for monitoring and maintaining an arteriovenous fistula according to claim 1, characterized in that: The single chip microcomputer (13) can store the arteriovenous fistula diameter and blood flow data detected by the MEMS ultrasonic patch (23); the artificial intelligence algorithm built into the single chip microcomputer (132) can process and analyze the stored arteriovenous fistula diameter data, regularly give correction suggestions for the upper and lower limits of the arteriovenous fistula diameter, and predict and evaluate the formation of aneurysms. When it is assessed that the arteriovenous fistula needs maintenance or that an arteriovenous aneurysm is formed, the touch display screen (10) can generate corresponding text prompts, the audio output module (15) can generate corresponding voice prompts, and the linear motor (16) can generate corresponding vibration prompts.

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