CN111374877A

CN111374877A - Foot venous thrombosis prevention and treatment device and control method thereof

Info

Publication number: CN111374877A
Application number: CN201811616226.9A
Authority: CN
Inventors: 李华英; 牛秦玉; 乔方; 陈一民; 张盼
Original assignee: Xi'an Nanshan Pine Medical Rehabilitation Equipment Co ltd
Current assignee: Xi'an Nanshan Pine Medical Rehabilitation Equipment Co ltd
Priority date: 2018-12-27
Filing date: 2018-12-27
Publication date: 2020-07-07

Abstract

The invention discloses a foot venous thrombosis prevention device and a control method thereof, belonging to the field of medical instruments, wherein the device comprises a foot binding bag, a pressurizing device, an air passage connecting pipe, a heating device, an external electric wire and a prevention instrument, and the control method comprises three control modes: a treatment mode, a rehabilitation mode, and a leisure mode, each mode corresponding to a particular parameter. The device is easy to wear, reliable in performance, suitable for users with different foot sizes, and particularly capable of effectively improving user experience through acupuncture point impact points designed at the sole.

Description

Foot venous thrombosis prevention and treatment device and control method thereof

Technical Field

The invention belongs to the field of medical instruments, and particularly belongs to a device for preventing and treating foot venous thrombosis and a control method thereof.

Background

Deep Venous Thrombosis (DVT) is a clinically common disorder, particularly DVT of the foot. DVT can threaten the life of the patient, and its sequelae seriously affect the working ability of the patient and even cause disability. DVT embolic disease is the third most common vascular disease in the united states, second to coronary heart disease and hypertension. DVT embolism is also a common disease and a frequently encountered disease in China.

Among them, the venous thrombosis of the foot is a common complication of patients in operation and long-term bedridden patients, and is also a good problem for healthy people who sit and lie for a long time. The venous thrombus on the foot can affect the motion function of limbs, cause foot swelling, foot varicosity and ulcer, and the thrombus can be separated to induce embolism, such as pulmonary embolism, cerebral infarction, infarction of other organs and the like, and serious patients can be fatal. To avoid the occurrence of embolism, it is important to prevent venous thrombosis in the foot.

The prevention and treatment of venous thromboembolic diseases generally adopts drug therapy and physical therapy, and if necessary, adopts operation therapy, and the drug therapy and the operation therapy have large side effect, high danger, high treatment cost and poor effect; there are many methods of physical therapy, among which the prior art includes: electrode signal stimulation method using sound current or direct current as treatment source; high-frequency alternating uniform-intensity magnetic field or polymorphic strong rotating magnetic field and dynamic magnetic field interference therapy; ultrasonic wave generating mechanical oscillation action, thermal effect and biological effect to break thrombus; wave spectrum therapy; electrolytic resonance method; bioelectricity in combination with music therapy; nano laser therapy; health-care and preventive medical elastic socks; an intermittent air pressure device method, and the like, and a method of stimulating channels and collaterals and acupuncture points by pulsating air pressure, as disclosed in Chinese patent of invention (channel painless therapeutic instrument) (application No. 87101313 application No. 1987-03-12) and Chinese patent of invention (blood circulation promoter) (application No. 90103434.1 application No. 1990-05-18) are therapeutic instruments for promoting venous blood circulation, the function principle is that the pulsating compressed air generated by the instrument is conveyed into the air bag wound on the affected part to form periodic extrusion on the affected part, so as to accelerate the venous blood flow and enhance the blood circulation, the instrument can prevent or treat lower limb venous diseases for workers who are standing or walking for a long time, is helpful for recovering the limb vitality of the athletes, however, the invention does not indicate the specific geometry of the air bag and how to increase the inflation and deflation rates of the air bag to increase the frequency of squeezing and relaxing the affected part. Chinese patent ZL201410139386.4 discloses a limb postoperative compression bandaging device capable of gradually pressurizing and adjusting pressure, and the aim of promoting blood circulation is achieved by means of gradually pressurizing limbs in a segmented mode. But the device is complicated to operate when realizing step-by-step pressurization and pulse pressurization, and is not suitable for the old to operate and use at home; the device needs to be provided with different models according to different postures of patients so as to be attached to the surface layer of the limb, the application range is small, and the input cost is extremely high for patients with various postures in medical institutions; in addition, the device is an integrated structure formed by connecting a plurality of air bags in sequence, can not wrap the part with a convex fixing instrument (a fracture driving steel nail), and is suitable for limbs without wound parts completely. In the prior art, particularly in related documents relating to deep venous thrombosis therapeutic instruments, a foot venous thrombosis prevention and treatment device combining a pressurizing air bag and an infrared heating scheme is not recorded, and a technical blank is left in the field at home.

Disclosure of Invention

In view of the above, the present invention adopts the pressurizing device to perform deep pressurization and relaxation on blood vessels of the foot of the human body, and simultaneously utilizes the heating device to enhance blood circulation, and can effectively avoid and slow down formation of deep venous thrombosis by presetting reasonable pressurization numerical values, pressurization frequency and heating temperature.

The invention solves the problems through the following technical means:

the utility model provides a foot venous thrombosis prevention and treatment device which characterized in that ties up bag, pressure device, gas circuit connecting pipe, heating device and external connection electric wire including the foot, wherein: the foot binding bag is composed of a wrapping part, a foot rear fixing part and a foot middle fixing part: the wrapping part can wrap feet with different sizes, the hindfoot fixing part is arranged at the rear side of the wrapping part and used for tightening the wrapping part at the heel part, and the midfoot fixing part is arranged at the front side of the wrapping part and used for tightening the wrapping part at the instep part; the pressurizing device consists of an air bag, an external sponge core, an internal sponge core and acupuncture point impact points: the air bag is arranged in the interlayer of the wrapping part positioned on the sole through a welding sealing line, the external sponge core is arranged in the interlayer of the wrapping part positioned on the sole through a welding sealing line, the internal sponge core is filled in the air bag, and the acupuncture point impact points are arranged on the inner surface of the wrapping part positioned on the sole; the air path connecting pipe consists of an air pipe and a CPC male connector, one end of the air pipe is communicated with a driving air source through the CPC male connector, and the other end of the air pipe is communicated with the inside of the air bag; the heating device is arranged in an interlayer of the wrapping part close to the foot and comprises heating cloth and a temperature sensor, the heating cloth is far infrared heating cloth, and the temperature sensor is used for collecting the actual heating temperature; the external wire comprises a direct current power line and a temperature signal line, the direct current power line is used for providing power for the heating cloth, and the temperature signal line is used for transmitting a real-time signal of the temperature sensor to realize closed-loop control of the temperature.

Preferably, the foot binding bag is formed by sewing two layers of non-woven fabrics through sewing threads, and the air bag is formed by sealing two layers of TPU films through welding sealing threads.

Preferably, the acupoint impact points comprise insomnia acupoint impact points, Yongquan acupoint impact points and Riningting acupoint impact points, and the insomnia acupoint impact points, the Yongquan acupoint impact points and the Riningting acupoint impact points are made of silica gel and magnets and are fixed on the inner surface of the wrapping part contacting with the sole of the foot in an adhesion mode.

Preferably, the hindfoot fixing part is composed of an elastic band and a first nylon fastener tape, one end of the elastic band is arranged at a position, close to the heel, of the wrapping part, and the first nylon fastener tape is arranged at the other end of the elastic band and used for adhering to the outer surface of the wrapping part.

Preferably, the foot middle fixing part comprises a first bandage, a second nylon fastener tape and a third nylon fastener tape, one end of the first bandage and one end of the second bandage are respectively arranged at the positions, close to the foot surface, of the wrapping part, the second nylon fastener tape is arranged at the other end of the first bandage and used for bonding the outer surface of the wrapping part, and the third nylon fastener tape is arranged at the other end of the second bandage and used for bonding the outer surface of the wrapping part.

Preferably, still including being used for drive and the prevention and cure appearance of control work, the prevention and cure appearance includes casing, control panel, control mainboard, vacuum diaphragm pump, cylinder, gas circuit converter, solenoid valve, gas outlet, air inlet, pressure sensor and power module, wherein: the shell is of a cuboid hollow structure; the control panel is arranged on the front side of the shell and comprises a display screen for information display and a keyboard for information interaction; the control mainboard is used for power supply conversion, signal processing, heating closed-loop control and pressurization closed-loop control, and is respectively connected with the control panel, the vacuum diaphragm pump, the electromagnetic valve, the pressure sensor, the power supply module and the temperature sensor; the vacuum diaphragm pump receives a driving signal of the control main board through a circuit, an output port of the vacuum diaphragm pump is connected with an air inlet of the air cylinder through a pipeline, an air outlet of the connecting air cylinder is converted into a left foot air path and a right foot air path through an air path converter, and the number of the electromagnetic valves is two, and the two electromagnetic valves are respectively arranged at the air outlets of the left foot air path and the right foot air path; the pressure sensor is arranged on the pipeline of the air outlet and used for detecting the pressure of the air path; the power supply module is an AC-DC module and is used for converting 220V alternating current into 12V direct current.

Preferably, the control mainboard includes singlechip, power supply circuit, vacuum pump drive circuit, solenoid valve drive circuit, temperature acquisition circuit, pressure acquisition circuit, keyboard circuit, display circuit, heating drive circuit and RTC clock circuit, wherein: the input end of the power supply circuit is connected with the power supply module, the output end of the power supply circuit is connected with an electricity utilization unit in the device, and the power supply circuit is a DC-DC circuit and is used for converting 12V direct current into 3.3V and 5.0V direct current; the single chip microcomputer controls the vacuum diaphragm pump to work through the vacuum pump driving circuit, controls the electromagnetic valve to work through the electromagnetic valve driving circuit, and controls the heating cloth to work through the heating driving circuit; the single chip microcomputer acquires real-time feedback of the temperature sensor through the temperature acquisition circuit, and acquires real-time feedback of the pressure sensor through the pressure acquisition circuit; the single chip microcomputer is connected with a keyboard through a keyboard circuit and connected with a display screen through a display circuit; the RTC clock circuit is connected with the single chip microcomputer and provides an accurate time reference for the device.

Preferably, the heating closed-loop control and the pressurizing closed-loop control adopt a filtering algorithm, and the method comprises the following specific steps:

A1) carrying out amplitude limiting processing on the sampling value, recording the current sampling value as S1, the last valid sampling value as S0, and the maximum allowable deviation of the two times of sampling as A;

A2) calculating the difference between S1 and S0, and comparing the difference with A;

A3) if the difference between S1 and S0 is not greater than a, S0= S1;

A4) if the difference between S1 and S0 is greater than A, S1 is invalid, and S0 continues to hold;

the sampling value is obtained by N times of continuous sampling, and the specific steps are as follows:

B1) continuously sampling the measured object for N times;

B2) removing the maximum value and the minimum value in the N removing queues;

B3) the arithmetic mean of the remaining N-2 data is calculated as the sample value.

The device for preventing and treating the venous thrombosis on the foot and the control method thereof have the following beneficial effects:

(1) this device has set up the gasbag in the sole department of bag is tied up to the foot, and the inside intercommunication of gasbag has drive air supply, can give foot pressurization and diastole through control drive air supply, and this kind of pressurization and diastole scheme can ensure venous blood fast return, and the upper and lower relative scheme that sets up of inside spongy core and outside spongy core also can show the use travelling comfort that promotes the user.

(2) This device adopts heating device, specifically can use far infrared cloth that generates heat to user's foot heating to reach the mesh of reinforceing blood circulation.

(3) The foot binding bag of the device adopts a wrapping type design, can adapt to feet with different sizes, and can be conveniently worn and detached by a user through the middle fixing part and the foot rear fixing part.

(4) The prevention and cure appearance of this device uses temperature sensor and pressure sensor to form closed loop control, and temperature sensor can perception ambient temperature and open automatically and heat the function, and pressure sensor can detect whether the user correctly dresses on the one hand, and on the other hand can also detect user's pulse frequency, realizes the pulse and pressurizes in step, when accelerateing the venous blood backward flow, does not influence the supply of artery blood flow.

(5) When the prevention and control instrument of the device realizes closed-loop detection of temperature and pressure, an improved jitter elimination filtering algorithm is adopted, the algorithm integrates two algorithms of median filtering and arithmetic mean filtering, and in the actual measurement process, the algorithm can eliminate the influence caused by accidental factors and interference signals.

(6) The prevention and treatment instrument comprises devices such as a vacuum diaphragm pump, an air cylinder, an electromagnetic valve and the like, has millisecond-level pressurization capacity, and the pressurization time is not more than 200 milliseconds, so that the pulse pressurization form can effectively improve the treatment and rehabilitation effects.

A control method of a foot venous thrombosis prevention device is characterized in that the foot binding bag, the pressurizing device, the air path connecting pipe, the heating device and the external electric wire are adopted, and the following steps are adopted:

C1) starting up;

C2) waiting for a user to select a working mode by the foot venous thrombosis control device, wherein the working mode comprises a treatment mode, a rehabilitation mode and a leisure mode;

C3) when the operation mode is determined as the treatment mode, the operation time of the foot venous thrombosis prevention device is set to 1.5h, wherein:

the first stage is 0-30mins, heating the heating cloth to 32-36 deg.C, and applying pressure to foot with 24-28mmHg pressure by pressurizing device with pressurizing frequency of 0.28-0.34 Hz;

the second stage is 30-60mins, heating the heating cloth to 36-39 deg.C, applying 30-35mmHg pressure to foot with pressurizing device, and pressurizing frequency is 0.4-0.5 Hz;

in the third stage of 60-90mins, heating the heating cloth to 39-42 deg.C, and applying pressure to foot with pressure of 40-45mmHg by using a pressurizing device, wherein the pressurizing frequency is 0.5-1 Hz;

C4) when the operation mode is determined as the rehabilitation mode, the operation time of the foot venous thrombosis prevention device is set to 1.5h, wherein:

in the first stage 0-20mins, heating the heating cloth to 32-36 deg.C, and applying pressure to foot with pressure of 20-25mmHg by using a pressurizing device, wherein the pressurizing frequency is 0.28-0.34 Hz;

in the second stage for 20-60mins, heating the heating cloth to 36-39 deg.C, and applying pressure to foot with pressure of 30-35mmHg by pressurizing device at frequency of 0.5-0.85 Hz;

in the third stage of 60-90mins, heating the heating cloth to 36-39 deg.C, applying 25-30mmHg pressure to foot with pressurizing device, wherein the pressurizing frequency is 0.34-0.5 Hz;

C5) when the working mode is determined as the leisure mode, the working time of the foot venous thrombosis control device is set to 1h, the heating cloth is heated to 32-36 ℃, the pressurizing device is used for applying 30-35mmHg pressure to the foot, and the pressurizing frequency is 0.34-0.5 Hz.

C6) Ending the working time;

C7) and (5) shutting down.

The control method of the device for preventing and treating the venous thrombosis on the foot has the following beneficial effects:

the control method comprises three working modes, specifically comprises a treatment mode, a rehabilitation mode and a leisure mode, wherein the treatment mode aims at patients in an operation period and patients lying in bed for a long time, and the heating temperature, the pressurization value and the pressurization frequency in the treatment mode are gradually increased; the rehabilitation mode aims at postoperative patients, and the heating temperature, the pressurization numerical value and the pressurization frequency in the rehabilitation mode can be reasonably circulated; the leisure mode is for people with long-term sitting and lying, and uses reasonable heating temperature, pressurizing value and pressurizing frequency.

A control method of a foot venous thrombosis prevention device is characterized in that the foot binding bag, the pressurizing device, the air path connecting pipe, the heating device, the external electric wire and the prevention instrument are adopted, and the following steps are adopted:

D1) starting up;

D2) the pressure sensor acquires the current internal pressure of the foot binding bag;

D3) if the internal pressure of the current foot binding bag is less than 10mmHg, the prevention and treatment instrument judges that the user does not normally wear the foot venous thrombosis prevention and treatment device, and the prevention and treatment instrument prompts the user through a display screen;

D4) if the internal pressure of the current foot binding bag is greater than or equal to 10mmHg, the prevention and treatment instrument judges that the user normally wears the foot venous thrombosis prevention and treatment device, the temperature sensor starts to acquire the current environment temperature, and the pressure sensor starts to detect the pulse frequency of the user;

D5) if the current environment temperature is lower than 28 ℃, the prevention and treatment instrument judges the environment to be a low temperature environment, and the foot venous thrombosis prevention and treatment device waits for a user to select a working mode, wherein the working mode comprises a treatment mode, a rehabilitation mode and a leisure mode:

when the operation mode is determined as the treatment mode, the operation time of the foot venous thrombosis prevention device is set to 1.5h, wherein:

the first stage is 0-20mins, heating the heating cloth to 32-36 deg.C, applying pressure of 30-35mmHg to foot with pressurizing device, wherein the pressurizing frequency is the pulse frequency of user;

the second stage is 15-45mins, heating the heating cloth to 36-39 deg.C, applying 35-40mmHg pressure to foot with pressurizing device, wherein the pressurizing frequency is the pulse frequency of user;

in the third stage of 45-90mins, heating the heating cloth to 39-42 ℃, and applying 40-45mmHg pressure to the foot by using a pressurizing device, wherein the pressurizing frequency is the pulse frequency of the user;

when the operation mode is determined as the rehabilitation mode, the operation time of the foot venous thrombosis prevention device is set to 1.5h, wherein:

the first stage is 0-30mins, heating the heating cloth to 30-35 deg.C, applying 25-30mmHg pressure to foot with pressurizing device, wherein the pressurizing frequency is the pulse frequency of user;

the second stage is 30-70mins, heating the heating cloth to 35-38 deg.C, applying pressure of 30-35mmHg to foot with pressurizing device, wherein the pressurizing frequency is the pulse frequency of user;

the third stage is 70-90mins, heating the heating cloth to 38-40 deg.C, applying 25-30mmHg pressure to foot with pressurizing device, wherein the pressurizing frequency is the pulse frequency of user;

when the working mode is determined to be the leisure mode, the working time of the foot venous thrombosis control device is set to be 1-2h, the heating cloth is heated to 36-38 ℃, the pressurizing device is used for applying 25-30mmHg pressure to the foot, and the pressurizing frequency is the pulse frequency of a user;

D6) if the current environment temperature is higher than or equal to 28 ℃, the prevention and treatment instrument judges the environment to be a high-temperature environment, and the foot venous thrombosis prevention and treatment device waits for a user to select a working mode, wherein the working mode comprises a treatment mode, a rehabilitation mode and a leisure mode:

the first stage is 0-20mins, a pressurizing device is used for applying 30-35mmHg pressure to the foot, and the pressurizing frequency is the pulse frequency of the user;

the second stage is 15-45mins, the pressure of 35-40mmHg is applied to the foot by using a pressurizing device, and the pressurizing frequency is the pulse frequency of the user;

in the third stage of 45-90mins, a pressurizing device is used for applying 40-42mmHg pressure to the foot, and the pressurizing frequency is the pulse frequency of the user;

the first stage is 0-30mins, a pressurizing device is used for applying pressure of 25-30mmHg to the foot, and the pressurizing frequency is the pulse frequency of the user;

the second stage is 30-70mins, a pressurizing device is used for applying 30-35mmHg pressure to the foot, and the pressurizing frequency is the pulse frequency of the user;

in the third stage of 70-90mins, a pressurizing device is used for applying 25-30mmHg pressure to the foot to obtain the pulse frequency of the user;

when the working mode is determined to be the leisure mode, the working time of the foot venous thrombosis control device is set to be 1-2h, 25-30mmHg pressure is applied to the foot by using the pressurizing device, and the pressurizing frequency is the pulse frequency of the user;

D7) ending the working time;

D8) and (5) shutting down.

the control method comprises an automatic temperature detection program and an automatic foot binding detection program, wherein the automatic temperature detection program can effectively detect the external environment, heat the feet of the user in a low-temperature environment, enhance blood circulation, and avoid blind heating in a high-temperature environment to cause uncomfortable experience; the automatic foot binding detection program can detect whether a user wears correctly through the pressure sensor, detect the pulse frequency of the user under the condition of correct wearing, synchronously pressurize by using the pulse frequency, accelerate venous blood backflow, and simultaneously do not influence arterial blood flow supply, the control method comprises three working modes, specifically comprises a treatment mode, a rehabilitation mode and a leisure mode, the treatment mode aims at patients in an operation period and patients lying in bed for a long time, and the heating temperature and the pressurization value in the treatment mode are gradually increased; the rehabilitation mode aims at postoperative patients, and the heating temperature and the pressurization value in the rehabilitation mode can be reasonably circulated; the leisure mode is for people with long-term sitting and lying, and uses reasonable heating temperature and pressurization values.

Drawings

The invention is further described below with reference to the figures and examples.

FIG. 1 is a schematic view of the wearing structure of the foot binding bag of the present invention;

FIG. 2 is a schematic view of the expanded configuration of the foot binding of the present invention;

FIG. 3 is a schematic view of the internal structure of the foot binding bag of the present invention;

FIG. 4 is a schematic front view of the prevention and treatment apparatus of the present invention;

FIG. 5 is a schematic side view of the prevention and treatment apparatus of the present invention;

FIG. 6 is a schematic view of the connection of the prevention and treatment apparatus of the present invention with a foot binding bag;

FIG. 7 is a schematic view of the internal circuit connections of the prevention and treatment apparatus of the present invention;

FIGS. 8a and 8b are schematic diagrams of a motor drive circuit according to the present invention;

FIG. 9 is a schematic diagram of a heater driving circuit according to the present invention;

FIG. 10 is a schematic diagram of a solenoid valve drive circuit according to the present invention;

FIG. 11 is a schematic diagram of the pressure sensor circuit of the present invention;

FIG. 12 is a schematic diagram of a temperature acquisition circuit according to the present invention;

FIG. 13 is a schematic diagram of a 3.3V power supply circuit of the present invention;

FIG. 14 is a schematic diagram of a 5.0V power supply circuit of the present invention;

FIG. 15 is a schematic diagram of a display screen interface circuit according to the present invention;

FIG. 16 is a schematic diagram of a keyboard interface circuit according to the present invention.

In the figure, 1-foot binding bag, 101-wrapping part, 102-hindfoot fixing part, 103-midfoot fixing part, 1021-elastic band, 1022-first nylon hasp, 1031-first bandage, 1032-second bandage, 1033-second nylon hasp, 1034-third nylon hasp, 2-pressurizing device, 201-air bag, 202-external sponge core, 203-internal sponge core, 204-acupoint impact point, 205-welding sealing line, 2041-insomnia acupoint impact point, 2042-Yongquan acupoint impact point, 2043-Neiting acupoint impact point, 3-air passage connecting pipe, 301-air pipe, 302-CPC male joint, 4-heating device, 401-heating cloth, 402-temperature sensor, 5-external electric wire, 6-preventing and treating instrument, 601-shell, 602-control panel, 603-control mainboard, 604-vacuum diaphragm pump, 605-cylinder, 606-gas circuit converter, 607-solenoid valve, 608-gas outlet, 609-gas inlet, 610-pressure sensor, 611-power module, 612-circuit, 613-pipeline, 6021-display screen, 6022-keyboard, 6031-single chip microcomputer, 6032-power circuit, 6033-vacuum pump drive circuit, 6034-solenoid valve drive circuit, 6035-temperature acquisition circuit, 6036-pressure acquisition circuit, 6037-keyboard circuit, 6038-display circuit, 6039-heating drive circuit, 6040-RTC clock circuit.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "edge", "middle", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, and that the configuration and operation of the particular orientation, and thus, are not to be construed as limiting the present invention. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

The present invention will be described in detail below with reference to the accompanying drawings.

Implement one

As shown in fig. 1 and 2, a device for preventing and treating venous thrombosis of foot, which can be worn on the foot of a user to provide pulse pressure for the foot, has the functions of squeezing, relaxing, heating and the like, and specifically comprises a foot binding bag 1, a pressurizing device 2, an air passage connecting pipe 3, a heating device 4 and an external electric wire 5, wherein the foot binding bag 1 is formed by sewing two layers of non-woven fabrics, and a pressurizing air bag 201 in the pressurizing device 2 is formed by sealing two layers of TPU films through a welding sealing line 205, and in the embodiment, the foot binding bag 1 is of a substantially triangular structure.

As shown in fig. 2, the foot binding bag 1 is composed of a wrapping part 101, a rear foot fixing part 102 and a middle foot fixing part 103: the wrapping part 101 can wrap feet with different sizes, the rear foot fixing part 102 is arranged at the rear side of the wrapping part 101 and used for tightening the wrapping part 101 at the heel part, the middle foot fixing part 103 is arranged at the front side of the wrapping part 101 and used for tightening the wrapping part 101 at the foot surface, wherein the foot binding bag 1 is formed by sewing two layers of non-woven fabrics through sewing threads, the air bag 201 is formed by sealing two layers of TPU films through welding sealing threads 205, the rear foot fixing part 102 is formed by an elastic band 1021 and a first nylon fastener tape 1022, one end of the elastic band 1021 is arranged at the position, close to the heel part, of the wrapping part 101, the first nylon fastener tape 1022 is arranged at the other end of the elastic band 1021 and used for bonding the outer surface of the wrapping part 101, the middle foot fixing part 103 is formed by a first binding band 1031, a second binding band 1032, a second nylon fastener tape 1033 and a third nylon fastener tape 1034, one ends of the first binding band 1031 and the second binding band 1032, a second hook and loop fastener 1033 is provided at the other end of the first strap 1031 for adhering to the outer surface of the wrapping portion 101, and a third hook and loop fastener 1034 is provided at the other end of the second strap 1032 for adhering to the outer surface of the wrapping portion 101.

When the foot fixing device is used specifically, a user firstly puts feet on the wrapping part 101, then wraps the left fan of the wrapping part 101 in the figure 2 to the surface of the feet, presses the foot middle fixing part 103 on the left fan, and adheres the middle fixing part 103 to the outer surface of the wrapping part 101, tightens up the non-woven fabrics on the surfaces of the feet and the soles through the second nylon fastener tape 1033 and the third nylon fastener tape 1034; at this time, the rear foot fixing portion 102 is pulled from one side to the other side to tighten the non-woven fabric of the heel and the sole, and the wearing manner can flexibly adapt to feet with different sizes.

Specifically, as shown in fig. 2 and 3, the pressurizing device 2 is composed of an air bag 201, an outer sponge core 202, an inner sponge core 203 and an acupuncture point impact point 204: the air bag 201 is arranged in a sandwich layer of the wrapping part 101 on the sole through a welding sealing line 205, the outer sponge core 202 is arranged in a sandwich layer of the wrapping part 101 on the sole through a welding sealing line 205, the inner sponge core 203 is filled in the air bag 201, and the acupuncture point impact points 204 are arranged on the inner surface of the wrapping part 101 on the sole; the air passage connecting pipe 3 is composed of an air pipe 301 and a CPC male connector 302, one end of the air pipe 301 is communicated with a driving air source through the CPC male connector 302, and the other end of the air pipe 301 is communicated with the inside of the air bag 201.

The acupoint impact points 204 comprise an insomnia acupoint impact point 2041, a Yongquan acupoint impact point 2042 and a Riningting acupoint impact point 2043, the insomnia acupoint impact point 2041, the Yongquan acupoint impact point 2042 and the Riningting acupoint impact point 2043 are made of silica gel and magnets and are fixed on the inner surface of the wrapping portion 101, which is in contact with the sole, in a bonding mode, during manufacturing, firstly, the silica gel base is fixed on the inner surface of the wrapping portion 101, which is in contact with the sole, and then the magnets are fixed in the silica gel base in a bonding mode.

During actual operation, the air passage connecting pipe 3 is composed of an air pipe 301 and a CPC male connector 302, one end of the air pipe 301 is communicated with a driving air source through the CPC male connector 302, the driving air source can be a vacuum diaphragm pump, and the other end of the air pipe 301 is communicated with the inside of the three-stage air bag 205.

Further referring to fig. 1 to 3, heating device 4 sets up in the intermediate layer of parcel portion 101 and includes heating cloth 401 and temperature sensor 402, and heating cloth 401 is the far infrared cloth that generates heat, and temperature sensor 402 is used for gathering the actual temperature of heating, and external electric wire 5 includes direct current power supply line and temperature signal line, and direct current power supply line is used for providing the power to heating cloth 401, and the temperature signal line is used for transmitting the real-time signal of temperature sensor 402 in order to realize the closed-loop control of temperature.

It should be noted that the device for preventing and treating venous thrombosis of foot in this embodiment includes two sets of foot binding bags 1, a pressurizing device 2, an air passage connecting pipe 3, a heating device 4 and an external electric wire 5, and the two sets of devices are respectively used for the left and right feet.

Based on the foot binding bag 1, the pressurizing device 2, the air passage connecting pipe 3, the heating device 4 and the external electric wire 5, the control method of the foot venous thrombosis prevention and treatment device is adopted in the embodiment, and the method specifically comprises the following steps:

c1 starting up;

c2 the foot venous thrombosis prevention and treatment device waits for the user to select the working mode, wherein the working mode comprises a treatment mode, a rehabilitation mode and a leisure mode;

c3 when the operation mode is determined as the treatment mode, the operation time of the foot venous thrombosis prevention device is set to 1.5h, wherein:

a first stage of 0-30mins, heating the heating cloth to 32-36 deg.C, applying pressure to foot with 24-28mmHg frequency of 0.28-0.34Hz by using a pressurizing device, wherein the preferable temperature is 34 deg.C and 26 mmHg pressure;

a second stage of 30-60mins, heating the heating cloth to 36-39 deg.C, applying pressure of 30-35mmHg to foot with a pressurizing device, wherein the pressurizing frequency is 0.4-0.5Hz, and the preferred temperature is 38 deg.C and 35mmHg pressure;

a third stage of 60-90mins, heating the heating cloth to 39-42 deg.C, and applying 40-45mmHg pressure to foot with pressurizing device at frequency of 0.5-1Hz, wherein the preferred temperature is 40 deg.C and 43 mmHg pressure;

c4 when the operation mode is determined as the rehabilitation mode, the operation time of the foot venous thrombosis prevention device is set to 1.5h, wherein:

a first stage of 0-20mins, heating the heating cloth to 32-36 deg.C, applying 20-25mmHg pressure to foot with a pressurizing device, wherein the pressurizing frequency is 0.28-0.34Hz, and the preferred temperature is 35 deg.C and 25mmHg pressure;

a second stage of 20-60mins, heating the heating cloth to 36-39 deg.C, applying pressure of 30-35mmHg to foot with a pressurizing device, wherein the pressurizing frequency is 0.5-0.85Hz, and the preferred temperature is 38 deg.C and 35 mmHg;

a third stage of 60-90mins, heating the heating cloth to 36-39 deg.C, applying 25-30mmHg pressure to foot with a pressurizing device, wherein the pressurizing frequency is 0.34-0.5Hz, and the preferred temperature is 38 deg.C and 30mmHg pressure;

c5 when the operation mode is determined as the leisure mode, the operation time of the foot venous thrombosis prevention device is set to 1h, the heating cloth is heated to 32-36 ℃, the pressurizing device is used for applying 30-35mmHg pressure to the foot, the pressurizing frequency is 0.34-0.5Hz, wherein, the preferable temperature is 35 ℃ and 32mmHg pressure.

C6 end of working time;

c7 is off.

It should be noted that the control method includes three operation modes: the device comprises a treatment mode, a rehabilitation mode and a leisure mode, wherein the treatment mode aims at patients in an operation period and long-term bedridden patients, and the heating temperature, the pressurization value and the pressurization frequency in the treatment mode are gradually increased; the rehabilitation mode aims at postoperative patients, and the heating temperature, the pressurization numerical value and the pressurization frequency in the rehabilitation mode can be reasonably circulated; the leisure mode is aimed at people who sit and lie for a long time, reasonable heating temperature, pressurizing numerical value and pressurizing frequency are used in the leisure mode, and the control methods are synchronously applied to the left foot and the right foot.

Carry out two

On the basis of the equipment described in the first embodiment, the present embodiment further includes a control instrument 6 for driving and controlling the operation, as shown in fig. 4, 5 and 6, the control instrument 6 includes a housing 601, a control panel 602, a control main board 603, a vacuum diaphragm pump 604, a cylinder 605, an air passage converter 606, an electromagnetic valve 607, an air outlet 608, an air inlet 609, a pressure sensor 610 and a power module 611. The prevention and treatment equipment worn by the left and right feet is connected to the same prevention and treatment instrument 6, and only the foot binding bag 1 for the right foot is shown in fig. 6.

Specifically, as shown in fig. 4, the housing 601 is a rectangular hollow structure; the control panel 602 is disposed on the front side of the housing 601 and includes a display screen 6021 for information presentation and a keyboard 6022 for information interaction.

As shown in fig. 5, the control main board 603 is used for power conversion, signal processing, heating closed-loop control and pressurizing closed-loop control, and the control main board 603 is respectively connected to the control panel 602, the vacuum diaphragm pump 604, the electromagnetic valve 607, the pressure sensor 610, the power module 611 and the temperature sensor 402.

It should be noted that this prevention and cure appearance device uses temperature sensor and pressure sensor to form closed-loop control, and temperature sensor can perception ambient temperature and open automatically and heat the function, and pressure sensor can detect whether the user correctly dresses on the one hand, and on the other hand can also detect user's pulse frequency, realizes the pulse and pressurizes in step, when accelerateing venous blood backward flow, does not influence the supply of artery blood flow.

The vacuum diaphragm pump 604 receives a driving signal of the control main board 603 through a circuit 612, an output port of the vacuum diaphragm pump 604 is connected with an air inlet 609 of the air cylinder 605 through a pipeline 613, an air outlet connected with the air cylinder 605 is converted into a left foot air path and a right foot air path through an air path converter 606, and the number of the electromagnetic valves 607 is two, and the two electromagnetic valves are respectively arranged at air outlets 608 of the left foot air path and the right foot air path; a pressure sensor 610 is disposed on the pipe 613 of the gas outlet 607 for detecting the gas path pressure; the power module 611 is an AC-DC module for converting 220V AC power to 12V DC power.

In specific implementation, an audible and visual alarm device can be added into the prevention and treatment instrument 6.

It should be noted that, in this embodiment, when the prevention and treatment instrument implements closed-loop detection of temperature and pressure, an improved jitter-elimination filtering algorithm is adopted, and the algorithm integrates two algorithms of median filtering and arithmetic mean filtering, and in the actual measurement process, the algorithm can eliminate the influence caused by accidental factors and interference signals, and the specific steps are as follows:

a1 carries out amplitude limiting processing on the sampling value, the current sampling value is recorded as S1, the last valid sampling value is recorded as S0, and the maximum deviation allowed by two times of sampling is A;

a2 calculating the difference between S1 and S0, and comparing the difference with A;

a3 if the difference between S1 and S0 is not greater than a, S0= S1;

a4 if the difference between S1 and S0 is greater than A, S1 is invalid and S0 continues to hold;

b1 samples the measured quantity N times consecutively;

b2 removing the maximum value and the minimum value in the N removal queues;

b3 calculates the arithmetic mean of the remaining N-2 data as the sample value.

Specifically referring to fig. 7, in the second embodiment, the control main board 603 includes a single chip microcomputer 6031, a power circuit 6032, a vacuum pump driving circuit 6033, a solenoid valve driving circuit 6034, a temperature acquisition circuit 6035, a pressure acquisition circuit 6036, a keyboard circuit 6037, a display circuit 6038, a heating driving circuit 6039, and an RTC clock circuit 6040.

It should be noted that, in this embodiment, a form of an isolation circuit and a driving circuit is adopted, as shown in fig. 8a and 8b, the isolation circuit adopts a PS2502L-1 chip, the driving circuit adopts a MAX14874 chip, and the single chip 6031 controls the operation of the vacuum diaphragm pump 604 through the vacuum pump driving circuit 6033. As shown in fig. 9, the single chip 6031 controls the heating cloth 401 to work through the heating driving circuit 6039, and the single chip controls the current in the heating cloth 401 to be turned on or off, specifically adopts PID adjustment to realize different heating temperatures, and in this embodiment, a PS2502L-1-a chip is adopted. As shown in fig. 10, the single chip 6031 controls the operation of the solenoid valve 607 through a solenoid valve driving circuit 6034, and a PS2502L-1 chip is used in this embodiment. As shown in fig. 11, the single chip 6031 obtains real-time feedback of the pressure sensor 610 through the pressure acquisition circuit 6036, and the embodiment adopts an MPVX5100GC6U type pressure sensor. As shown in fig. 12, the single chip microcomputer 6031 obtains real-time feedback of the temperature sensor 402 through a temperature acquisition circuit 6035, and a PESD5V0S2UT type temperature sensor is used in this embodiment. As shown in fig. 13 and 14, the input terminal of the power circuit 6032 is connected to the power module 611, and the output terminal of the power circuit 6032 is connected to the power consumption unit inside the apparatus, and the power circuit 6032 is a DC-DC circuit for converting a 12V direct current into 3.3V and 5.0V direct currents. Specifically, the 3.3V conversion circuit in fig. 13 uses a MAX5024T chip, and the 5.0V conversion circuit in fig. 14 uses a MAX5024L chip. As shown in fig. 15 and 16, the one-chip microcomputer 6031 is connected to the display screen 6021 through a display circuit 6038; the singlechip 6031 is connected with the keyboard 6022 through a keyboard circuit 6037. An RTC clock circuit 6040 is connected to the single-chip 6031 and provides an accurate time reference for the device.

Based on the foot binding bag 1, the pressurizing device 2, the air passage connecting pipe 3, the heating device 4, the external electric wire 5 and the prevention and treatment instrument 6, the following control steps are adopted in the embodiment:

d1 starting up;

the D2 pressure sensor acquires the internal pressure of the foot binding bag at present;

d3 if the internal pressure of the foot binding bag is less than 10mmHg, the prevention and treatment instrument judges that the user does not normally wear the foot venous thrombosis prevention and treatment device, and the prevention and treatment instrument prompts the user through the display screen;

d4 if the pressure inside the foot binding bag is greater than or equal to 10mmHg, the prevention and treatment instrument judges that the user has normally worn the foot venous thrombosis prevention and treatment device, the temperature sensor starts to collect the current environment temperature, and the pressure sensor starts to detect the pulse frequency of the user;

d5 if the current environment temperature is lower than 28 ℃, the prevention and treatment instrument judges the environment is low temperature, the foot venous thrombosis prevention and treatment device waits for the user to select the working mode, and the working mode comprises a treatment mode, a rehabilitation mode and a leisure mode:

the first stage is 0-20mins, heating the heating cloth to 32-36 deg.C, applying pressure to foot with 30-35mmHg by pressurizing device, wherein the pressurizing frequency is user pulse frequency, preferably, the heating temperature is 34 deg.C, and the pressure value is 32 mmHg;

a second stage of 15-45mins, heating the heating cloth to 36-39 deg.C, applying 35-40mmHg pressure to foot with a pressurizing device, wherein the pressurizing frequency is user pulse frequency, preferably, the heating temperature is 38 deg.C, and the pressure value is 38 mmHg;

in the third stage 45-90mins, heating the heating cloth to 39-42 deg.C, applying pressure to foot 36-42mmHg with a pressurizing device, wherein the pressurizing frequency is user pulse frequency, preferably, the heating temperature is 40 deg.C, and the pressure value is 42 mmHg;

the first stage is 0-30mins, heating the heating cloth to 36-39 deg.C, applying pressure to foot with 25-30mmHg by pressurizing device, wherein the pressurizing frequency is user pulse frequency, preferably, the heating temperature is 38 deg.C, and the pressure value is 30 mmHg;

the second stage 30-70mins, heating the heating cloth to 36-39 deg.C, applying pressure of 30-35mmHg to foot with pressurizing device, wherein the pressurizing frequency is user pulse frequency, preferably, the heating temperature is 38 deg.C, and the pressure value is 34 mmHg;

a third stage of 70-90mins, heating the heating cloth to 36-39 deg.C, applying pressure to foot with 25-30mmHg by using a pressurizing device, wherein the pressurizing frequency is the user pulse frequency, preferably, the heating temperature is 38 deg.C, and the pressure value is 30 mmHg;

when the working mode is determined to be the leisure mode, the working time of the foot venous thrombosis control device is set to be 1-2h, the heating cloth is heated to 36-38 ℃, the pressurizing device is used for applying 25-30mmHg pressure to the foot, the pressurizing frequency is the user pulse frequency, preferably, the heating temperature is 38 ℃, and the pressure value is 30 mmHg;

d6 if the current environment temperature is higher than or equal to 28 ℃, the prevention and treatment instrument judges the high temperature environment, the foot venous thrombosis prevention and treatment device waits for the user to select the working mode, the working mode includes a treatment mode, a rehabilitation mode and a leisure mode:

a first stage of 0-20mins, using a pressurizing device to apply 30-35mmHg pressure to the foot, wherein the pressurizing frequency is the user pulse frequency, and preferably, the pressure value is 34 mmHg;

a second stage of 15-45mins, using a pressurizing device to apply 35-40mmHg pressure to the foot, wherein the pressurizing frequency is the pulse frequency of the user, and preferably, the pressure value is 38 mmHg;

in the third stage 45-90mins, a pressurizing device is used for applying 40-42mmHg pressure to the foot, wherein the pressurizing frequency is the pulse frequency of the user, and preferably, the pressure value is 42 mmHg;

a first stage of 0-30mins, using a pressurizing device to apply 25-30mmHg pressure to the foot, wherein the pressurizing frequency is the user pulse frequency, and preferably, the pressure value is 30 mmHg;

a second stage of 30-70mins, using a pressurizing device to apply pressure of 30-35mmHg to the foot, wherein the pressurizing frequency is the pulse frequency of the user, and preferably, the pressure value is 33 mmHg;

a third stage of 70-90mins, using a pressurizing device to apply pressure to the foot at 25-30mmHg, wherein the pressurizing frequency is the user pulse frequency, and preferably, the pressure value is 30 mmHg;

when the working mode is determined to be the leisure mode, the working time of the foot venous thrombosis control device is set to be 1-2h, 25-30mmHg pressure is applied to the foot by using the pressurizing device, the pressurizing frequency is the user pulse frequency, and preferably, the pressure value is 30 mmHg;

d7 finishing the working time;

d8 is turned off.

It should be noted that the control method is implemented based on the foot binding bag 1, the pressurizing device 2, the air passage connecting pipe 3, the heating device 4, the external connecting wire 5 and the prevention and treatment instrument 6, and due to the unique design of the prevention and treatment instrument 6 and the pressurizing device 2, the pressure loading and releasing in millisecond level can be realized, for example, in a working period T time, firstly, pulse pressurization is adopted, the pressurization time is generally within 200 milliseconds, then, the pressure is maintained for 0.35T time, and then, the pressure is released for waiting for the next working period. The prevention and treatment instrument completely imitates a natural 'foot pump' of a human body to achieve the function of increasing the blood flow velocity of veins and arteries by times, and can completely achieve the state of simulating natural walking.

The control method comprises an automatic temperature detection program and an automatic foot binding detection program, wherein the automatic temperature detection program can effectively detect the external environment, heat the feet of the user in a low-temperature environment, enhance blood circulation, and avoid blind heating in a high-temperature environment to cause uncomfortable experience; the automatic foot binding detection program can detect whether a user wears correctly through the pressure sensor, detect the pulse frequency of the user under the condition of correct wearing, synchronously pressurize by using the pulse frequency, accelerate venous blood backflow, and simultaneously do not influence arterial blood flow supply, the control method comprises three working modes, specifically comprises a treatment mode, a rehabilitation mode and a leisure mode, the treatment mode aims at patients in an operation period and patients lying in bed for a long time, and the heating temperature and the pressurization value in the treatment mode are gradually increased; the rehabilitation mode aims at postoperative patients, and the heating temperature and the pressurization value in the treatment mode can be reasonably circulated; the leisure mode is aimed at people who sit and lie for a long time, reasonable heating temperature and pressurizing numerical values are used in the leisure mode, and the control method synchronously acts on the left foot and the right foot.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: modifications of the technical solutions described in the embodiments or equivalent replacements of some technical features may still be made. The above modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a foot venous thrombosis prevention and treatment device which characterized in that ties up bag (1), pressure device (2), gas circuit connecting pipe (3), heating device (4) and external electric wire (5) including the foot, wherein:

bag (1) is tied up to foot comprises parcel portion (101), fixed part (102) and fixed part (103) in the foot behind: the wrapping part (101) can wrap feet with different sizes, the rear foot fixing part (102) is arranged at the rear side of the wrapping part (101) and used for tightening the wrapping part (101) at the heel part, and the middle foot fixing part (103) is arranged at the front side of the wrapping part (101) and used for tightening the wrapping part (101) at the instep part;

the pressurizing device (2) is composed of an air bag (201), an external sponge core (202), an internal sponge core (203) and acupuncture point impact points (204): the air bag (201) is arranged in a sandwich layer of the wrapping part (101) on the sole through a welding sealing line (205), the outer sponge core (202) is arranged in the sandwich layer of the wrapping part (101) on the sole through the welding sealing line (205), the inner sponge core (203) is filled in the air bag (201), and the acupuncture point impact points (204) are arranged on the inner surface of the wrapping part (101) on the sole;

the air path connecting pipe (3) consists of an air pipe (301) and a CPC male connector (302), one end of the air pipe (301) is communicated with a driving air source through the CPC male connector (302), and the other end of the air pipe (301) is communicated with the inside of the air bag (201);

the heating device (4) is arranged in an interlayer of the wrapping part (101) close to the foot and comprises heating cloth (401) and a temperature sensor (402), the heating cloth (401) is far infrared heating cloth, and the temperature sensor (402) is used for collecting the actual heating temperature;

the external connection wire (5) comprises a direct current power line and a temperature signal line, the direct current power line is used for providing power for the heating cloth (401), and the temperature signal line is used for transmitting a real-time signal of the temperature sensor (402) so as to realize closed-loop control of temperature.

2. The device for preventing and treating foot venous thrombosis as claimed in claim 1, wherein said foot binding bag (1) is formed by sewing two layers of non-woven fabrics with sewing thread, and said air bag (201) is formed by sealing two layers of TPU films with welding sealing thread (205).

3. The device for preventing and treating venous thrombosis of foot according to claim 1, wherein said acupoint impact points (204) comprise an insomnia acupoint impact point (2041), a Yongquan acupoint impact point (2042) and a Neiting acupoint impact point (2043), and said insomnia acupoint impact point (2041), Yongquan acupoint impact point (2042) and Neiting acupoint impact point (2043) are made of silica gel and magnet and fixed on the inner surface of the wrapping portion (101) contacting with the sole of foot by adhesion.

4. The apparatus for preventing and treating venous thrombosis of foot as claimed in claim 1, wherein said hindfoot fixing portion (102) is composed of an elastic band (1021) and a first hook and loop fastener (1022), one end of said elastic band (1021) is disposed at a position of said wrapping portion (101) near the heel, and said first hook and loop fastener (1022) is disposed at the other end of said elastic band (1021) for adhering the outer surface of said wrapping portion (101).

5. A foot venous thrombosis control device as claimed in claim 1, characterized in that said foot middle fixing part (103) is composed of a first strap (1031), a second strap (1032), a second hook and loop fastener (1033) and a third hook and loop fastener (1034), one end of said first strap (1031) and said second strap (1032) are respectively disposed at the position of the wrapping part (101) near the foot surface, said second hook and loop fastener (1033) is disposed at the other end of the first strap (1031) for adhering the outer surface of the wrapping part (101), and said third hook and loop fastener (1034) is disposed at the other end of the second strap (1032) for adhering the outer surface of the wrapping part (101).

6. The foot venous thrombosis prevention device of claim 1, further comprising a prevention and treatment instrument (6) for driving and controlling work, said prevention and treatment instrument (6) comprising a housing (601), a control panel (602), a control main board (603), a vacuum diaphragm pump (604), a cylinder (605), a gas path converter (606), a solenoid valve (607), a gas outlet (608), a gas inlet (609), a pressure sensor (610), and a power supply module (611), wherein:

the shell (601) is of a cuboid hollow structure;

the control panel (602) is arranged on the front surface of the shell (601) and comprises a display screen (6021) for information display and a keyboard (6022) for information interaction;

the control main board (603) is used for power conversion, signal processing, heating closed-loop control and pressurizing closed-loop control, and the control main board (603) is respectively connected with the control panel (602), the vacuum diaphragm pump (604), the electromagnetic valve (607), the pressure sensor (610), the power module (611) and the temperature sensor (402);

the vacuum diaphragm pump (604) receives a driving signal of a control main board (603) through a circuit (612), an output port of the vacuum diaphragm pump (604) is connected with an air inlet (609) of an air cylinder (605) through a pipeline (613), an air outlet of the connected air cylinder (605) is converted into a left foot air path and a right foot air path through an air path converter (606), and the number of the electromagnetic valves (607) is two, and the two electromagnetic valves are respectively arranged at air outlets (608) of the left foot air path and the right foot air path and are used for being connected with the CPC male connector (302);

the pressure sensor (610) is arranged on the pipeline (613) of the air outlet (607) and is used for detecting the pressure of the air path;

the power module (611) is an AC-DC module for converting 220V alternating current to 12V direct current.

7. The foot venous thrombosis control device according to claim 6, wherein said control main board (603) comprises a single chip microcomputer (6031), a power supply circuit (6032), a vacuum pump drive circuit (6033), a solenoid valve drive circuit (6034), a temperature acquisition circuit (6035), a pressure acquisition circuit (6036), a keyboard circuit (6037), a display circuit (6038), a heating drive circuit (6039) and an RTC clock circuit (6040), wherein:

the input end of the power supply circuit (6032) is connected with the power supply module (611), the output end of the power supply circuit (6032) is connected with an electricity utilization unit in the device, and the power supply circuit (6032) is a DC-DC circuit and is used for converting 12V direct current into 3.3V and 5.0V direct current;

the single-chip microcomputer (6031) controls the vacuum diaphragm pump (604) to work through the vacuum pump driving circuit (6033), the single-chip microcomputer (6031) controls the electromagnetic valve (607) to work through the electromagnetic valve driving circuit (6034), and the single-chip microcomputer (6031) controls the heating cloth (401) to work through the heating driving circuit (6039);

the single-chip microcomputer (6031) acquires real-time feedback of the temperature sensor (402) through a temperature acquisition circuit (6035), and the single-chip microcomputer (6031) acquires real-time feedback of the pressure sensor (610) through a pressure acquisition circuit (6036);

the single chip microcomputer (6031) is connected with the keyboard (6022) through the keyboard circuit (6037), and the single chip microcomputer (6031) is connected with the display screen (6021) through the display circuit (6038);

the RTC clock circuit (6040) is connected with the singlechip (6031) and provides accurate time reference for the device.

8. The device for prevention and treatment of venous thrombosis of foot as set forth in claim 6, wherein said closed loop control of heating and closed loop control of pressurizing employ a filtering algorithm, comprising the steps of:

A3) if the difference between S1 and S0 is not greater than a, S0= S1;

B1) continuously sampling the measured object for N times;

B2) removing the maximum value and the minimum value in the N removing queues;

9. A control method of a foot venous thrombosis prevention device, characterized by adopting the foot binding bag (1), the pressurizing device (2), the air passage connecting pipe (3), the heating device (4) and the external electric wire (5) as set forth in claims 1 to 5, and adopting the following steps:

C1) starting up;

C5) when the working mode is determined as the leisure mode, the working time of the foot venous thrombosis control device is set to 1h, the heating cloth is heated to 32-36 ℃, the pressurizing device is used for applying 30-35mmHg pressure to the foot, and the pressurizing frequency is 0.34-0.5 Hz;

C6) ending the working time;

C7) and (5) shutting down.

10. A control method of a foot venous thrombosis prevention device, characterized in that the foot binding bag (1), the pressurizing device (2), the air passage connecting pipe (3), the heating device (4), the external electric wire (5) and the prevention and treatment instrument (6) according to the claims 6 and 7 are adopted to adopt the following steps:

D1) starting up;

D7) ending the working time;

D8) and (5) shutting down.