CN111789751A

CN111789751A - Air pressure therapeutic apparatus and control method

Info

Publication number: CN111789751A
Application number: CN202010678856.XA
Authority: CN
Inventors: 邢煜
Original assignee: Beijing Longmafutu Technology Co ltd
Current assignee: Beijing Longmafutu Technology Co ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2020-10-20

Abstract

The invention relates to an air pressure therapeutic apparatus and a control method thereof, relating to the technical field of medical instruments. The air pressure therapeutic apparatus comprises an inflation power control device, an exhaust power control device and a pressure sensor; the pressure sensor detects real-time air pressure; the main machine of the air pressure therapeutic apparatus compares the real-time air pressure with an inflation boosting curve or an exhaust pressure reducing curve, and sends a signal to an inflation power control device or an exhaust power control device according to the comparison result; the inflation power control device or the exhaust power control device adjusts the power supply power to the inflation pump or the exhaust pump according to the signal. The air pressure therapeutic instrument controls the inflation power control device to adjust the power supply power to the inflator pump by comparing the real-time air pressure with the inflation boosting curve, so as to adjust the inflation speed of the inflator pump, ensure that the inflation speed and the exhaust speed of the limb sleeve accord with the inflation boosting curve and the exhaust pressure reduction curve, and achieve the purpose of adjusting the inflation and deflation speed.

Description

Air pressure therapeutic apparatus and control method

Technical Field

The invention relates to the technical field of medical instruments, in particular to an air pressure therapeutic apparatus and a control method.

Background

Intermittent pneumatic compression therapy (IPC) is a technique of applying periodic pressure to a limb to promote blood circulation and accelerate backflow of interstitial fluid, thereby relieving clinical symptoms of edema, pain, soreness, heaviness of the limb and Intermittent claudication caused by venous edema of the limb and arterial ischemia of the lower limb.

The air pressure therapeutic instrument mainly forms the circulating pressure of limbs and tissues by sequentially and repeatedly inflating and deflating the multi-cavity air bags, evenly, orderly and properly extrudes the far end of the limbs to the near end of the limbs, promotes the flow of blood and lymph fluid and improves the microcirculation. The existing air pressure therapeutic instruments all adopt an air pump and an air distribution device (comprising an electromagnetic valve or a rotary air distribution valve which can play a similar role) to inflate a limb sleeve (namely a multi-cavity air bag). The human body is not a single structure, and is divided into blood, lymph, interstitial fluid of cell tissue and the like according to the action target of the air pressure therapeutic apparatus product; the aim of the air pressure therapeutic apparatus is to promote the circulation of these interstitial fluids, so that the limb can be better metabolized. When the air pressure of the air pressure therapeutic apparatus is directly output to a set pressure value, under the condition that partial tissue fluid can not be completely discharged, the venous and lymphatic vessels are pressed, the discharge pressure of the body fluid is blocked, the whole treatment efficiency is reduced, and even the injury of the human body is possibly caused. When the limb sleeve is deflated, the existing air pressure therapeutic apparatus directly exhausts air, the pressure is reduced in a short time, a large amount of blood fills the limb in a short time, considerable impact is caused to the heart, and discomfort similar to hypotension in body position can be caused sometimes. Therefore, the existing air pressure therapeutic apparatus has the problem that the air inflation and deflation rate cannot be adjusted.

Disclosure of Invention

The invention aims to provide an air pressure therapeutic apparatus and a control method thereof, and solves the problem that the existing air pressure therapeutic apparatus cannot adjust the inflation and deflation rates.

In order to achieve the purpose, the invention provides the following scheme:

an air pressure treatment apparatus comprising: a limb sleeve, a breather pipe and a therapeutic instrument host;

the limb sleeve comprises a plurality of gas chambers; the limb sleeve is used for applying pressure to a limb of a user;

the therapeutic instrument host is communicated with the gas cavity through the vent pipe; the therapeutic instrument host is used for introducing gas into the gas chamber or exhausting the gas in the gas chamber;

the therapeutic instrument host comprises a control device, an inflation power control device, an inflation pump, an exhaust power control device, an exhaust pump, a pressure sensor and an electromagnetic valve group; the electromagnetic valve group comprises a plurality of electromagnetic valves;

the detection end of the pressure sensor is communicated with the vent pipe through a gas pipeline, and the output end of the pressure sensor is connected with the input end of the control device; the pressure sensor is used for detecting real-time air pressure in the vent pipe;

the output end of the control device is respectively connected with the control end of the inflation power control device and the control end of the exhaust power control device; the control device is used for acquiring an inflation boosting curve, an exhaust pressure reduction curve and the real-time air pressure, comparing the real-time air pressure with the inflation boosting curve or the exhaust pressure reduction curve, and sending a reduction signal or an increase signal to the inflation power control device according to a comparison result, or sending the reduction signal or the increase signal to the exhaust power control device according to the comparison result;

the output end of the inflation power control device is connected with the inflation pump; the inflation power control device is used for adjusting the power supply power for the inflation pump according to the reduction signal or the increase signal;

the output end of the exhaust power control device is connected with the exhaust pump; the exhaust power control device is used for adjusting power supply to the exhaust pump according to the reduction signal or the increase signal;

one end of the electromagnetic valve is connected with the output end of the inflator pump or the input end of the exhaust pump; the other end of the electromagnetic valve is communicated with the gas chamber through a vent pipe.

Optionally, the control device specifically includes: a control device and a controller;

the control device is connected with the controller; the control device is used for acquiring an inflation boosting curve and an exhaust pressure reduction curve and sending the inflation boosting curve and the exhaust pressure reduction curve to the controller;

the output end of the controller is respectively connected with the control end of the inflation power control device and the control end of the exhaust power control device; the control device is used for comparing the real-time air pressure with the inflation pressure increasing curve or the exhaust pressure decreasing curve, and sending a reduction signal or an increase signal to the inflation power control device according to a comparison result, or sending the reduction signal or the increase signal to the exhaust power control device according to the comparison result.

Optionally, the electromagnetic valve specifically includes: an inflation solenoid valve and an exhaust solenoid valve;

the number of the inflation electromagnetic valves is the same as that of the gas chambers, and one end of each inflation electromagnetic valve is connected with the output end of the inflator pump; the other end of the inflation electromagnetic valve is communicated with the gas chamber through a vent pipe;

the number of the exhaust electromagnetic valves is the same as that of the gas chambers, and one end of each exhaust electromagnetic valve is connected with the input end of the exhaust pump; the other end of the exhaust electromagnetic valve is communicated with the gas chamber through a vent pipe.

A control method of an air pressure therapeutic apparatus is applied to the air pressure therapeutic apparatus, and comprises the following steps:

acquiring an inflation boosting curve and an exhaust decompression curve through a control device;

detecting real-time air pressure in the vent pipe by using a pressure sensor;

during inflation, comparing the real-time air pressure with the inflation boosting curve to judge whether the inflation speed is greater than a first preset inflation threshold value or not, and obtaining a first judgment result;

if the first judgment result is yes, sending a reduction signal to an inflation power control device, and reducing the power supply power of the inflation power control device to the inflator pump;

if the first judgment result is negative, judging whether the inflation rate is smaller than a second preset inflation threshold value to obtain a second judgment result;

if the second judgment result is yes, sending an increasing signal to the inflation power control device, and increasing the power supply power of the inflation power control device to the inflator pump;

when exhausting, comparing the real-time air pressure with the exhaust pressure reduction curve to judge whether the exhaust rate is greater than a first preset exhaust threshold value or not, and obtaining a third judgment result;

if the third judgment result is yes, sending a reducing signal to an exhaust power control device, and reducing the power supply power of the exhaust power control device to an exhaust pump;

if the third judgment result is negative, judging whether the exhaust rate is smaller than a second preset exhaust threshold value or not, and obtaining a fourth judgment result;

if the fourth judgment result is yes, sending an increasing signal to the exhaust power control device, and increasing the power supply power of the exhaust power control device to the exhaust pump.

the therapeutic instrument host comprises a control device, an air pump, a pressure sensor and an angle valve group; the angle valve group comprises a plurality of electric angle valves;

the output end of the control device is connected with the control end of the electric angle valve; the control device is used for acquiring an inflation pressure increasing curve, an exhaust pressure reducing curve and the real-time air pressure, comparing the real-time air pressure with the inflation pressure increasing curve or the exhaust pressure reducing curve, adjusting the electric angle valve according to a comparison result, reducing or increasing the air flow conveyed to the air chamber, or adjusting the electric angle valve according to the comparison result, reducing or increasing the air flow exhausted from the air chamber;

one end of the electric angle valve is connected with the air pump; the other end of the electric angle valve is communicated with the gas chamber through a vent pipe.

Optionally, the electric angle valve specifically includes: an inflation angle valve and a discharge angle valve;

the number of the inflation angle valves is the same as that of the gas chambers, and one end of each inflation angle valve is connected with the output end of the gas pump; the other end of the inflation angle valve is communicated with the gas chamber through a vent pipe;

the number of the exhaust angle valves is the same as that of the gas chambers, and one end of each exhaust angle valve is connected with the input end of the gas pump; the other end of the exhaust angle valve is communicated with the gas chamber through a vent pipe.

the output end of the controller is respectively connected with the control end of the inflation angle valve and the control end of the exhaust angle valve; the control device is used for comparing the real-time air pressure with the inflation pressure increasing curve or the exhaust pressure decreasing curve, adjusting the inflation angle valve to reduce or increase the flow of the gas conveyed to the gas chamber according to the comparison result, or adjusting the exhaust angle valve to reduce or increase the flow of the gas exhausted from the gas chamber according to the comparison result.

the therapeutic instrument host comprises a control device, an inflation pump, an exhaust pump, a pressure sensor and an electromagnetic valve group; the electromagnetic valve group comprises a plurality of electromagnetic valves;

the output end of the control device is connected with the control end of the electromagnetic valve; the control device is used for acquiring an inflation pressure increasing curve and an exhaust pressure reducing curve, comparing the real-time air pressure with the inflation pressure increasing curve or the exhaust pressure reducing curve, and adjusting the opening time of the electromagnetic valve according to the comparison result;

the output end of the controller is respectively connected with the control end of the inflation electromagnetic valve and the control end of the exhaust electromagnetic valve; the control device is used for comparing the real-time air pressure with the inflation pressure increasing curve or the exhaust pressure decreasing curve, and reducing or increasing the opening time of the inflation electromagnetic valve according to the comparison result, or reducing or increasing the opening time of the exhaust electromagnetic valve according to the comparison result.

According to the specific embodiment provided by the invention, the invention discloses the following technical effects:

the invention provides an air pressure therapeutic apparatus and a control method. This air pressure therapeutic instrument includes: a limb sleeve, a breather pipe and a therapeutic instrument host; the limb sleeve comprises a plurality of gas chambers; the limb sleeve is used for applying pressure to the limb of the user; the therapeutic instrument host is communicated with the gas cavity through a vent pipe; the therapeutic instrument host is used for introducing gas into the gas cavity or exhausting the gas in the gas cavity; the therapeutic instrument host comprises a control device, an inflation power control device, an inflation pump, an exhaust power control device, an exhaust pump, a pressure sensor and an electromagnetic valve group; the electromagnetic valve group comprises a plurality of electromagnetic valves; the detection end of the pressure sensor is communicated with the vent pipe through a gas pipeline, and the output end of the pressure sensor is connected with the input end of the control device; the pressure sensor is used for detecting real-time air pressure in the vent pipe; the output end of the control device is respectively connected with the control end of the inflation power control device and the control end of the exhaust power control device; the control device is used for acquiring an inflation boosting curve, an exhaust pressure reduction curve and real-time air pressure, comparing the real-time air pressure with the inflation boosting curve or the exhaust pressure reduction curve, and sending a reduction signal or an increase signal to the inflation power control device according to a comparison result, or sending a reduction signal or an increase signal to the exhaust power control device according to the comparison result; the output end of the inflation power control device is connected with an inflation pump; the inflation power control device is used for adjusting the power supply power to the inflator pump according to the reduction signal or the increase signal; the output end of the exhaust power control device is connected with an exhaust pump; the exhaust power control device is used for adjusting the power supply power to the exhaust pump according to the decreasing signal or the increasing signal; one end of the electromagnetic valve is connected with the output end of the inflator pump or the input end of the exhaust pump; the other end of the electromagnetic valve is communicated with the gas chamber through a vent pipe. The air pressure therapeutic instrument adjusts the power supply of the inflation power control device to the inflation pump by comparing the real-time air pressure with the inflation boosting curve, and further adjusts the inflation rate of the inflation pump; the power supply power of the exhaust power control device to the exhaust pump is adjusted by comparing the real-time air pressure with the exhaust pressure reduction curve, so that the exhaust rate of the exhaust pump is adjusted, the inflation rate of the limb sleeve during inflation accords with the inflation pressure increase curve, and the exhaust rate of the limb sleeve during exhaust accords with the exhaust pressure reduction curve, so that the purposes of adjusting the inflation and deflation rate and adjusting the real-time gas pressure change curve during inflation and deflation are achieved, and meanwhile, the user is prevented from being injured by quick inflation and exhaust.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

Fig. 1 is a structural diagram of an air pressure therapeutic apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic view of a charge boosting curve provided by an embodiment of the present invention;

fig. 3 is a connection structure diagram of the solenoid valve assembly according to the embodiment of the present invention;

FIG. 4 is a structural diagram of a main body of the therapeutic apparatus according to the embodiment of the present invention;

FIG. 5 is a block diagram of another air pressure treatment apparatus according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of another embodiment of an air pressure treatment apparatus according to the present invention;

fig. 7 is a schematic diagram of an air pressure therapeutic apparatus according to an embodiment of the present invention.

Description of the symbols: 1. a limb sleeve; 2. a breather pipe; 3. a therapeutic instrument host; 4. an operating device; 5. a controller; 6. an inflation power control device; 7. an inflator pump; 8. an exhaust power control device; 9. an exhaust pump; 10. a pressure sensor; 11. an electromagnetic valve group; 12. an inflation solenoid valve; 13. an exhaust solenoid valve; 14. a gas chamber; 15. an air pump; 16. a corner valve group; 17. a housing; 18. a transformer; 19. a breather tube coupling; 20. a power switch; 21. a power socket; 22. a fuse; 23. an emergency stop button; 24. a first control board; 25. and a second control panel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

This embodiment provides an air pressure therapeutic apparatus (i.e. an air wave pressure therapeutic apparatus), fig. 1 is a structural diagram of the air pressure therapeutic apparatus provided in the embodiment of the present invention, referring to fig. 1, the air pressure therapeutic apparatus includes: a limb sleeve 1, a ventilation tube 2 and a therapeutic instrument host 3.

The limb sleeve 1 comprises a plurality of gas chambers 14; the limb sleeve 1 is used to apply pressure to a limb of a user. The gas chamber is an airbag.

The therapeutic instrument main machine 3 is communicated with the gas chamber 14 through the vent pipe 2; the therapeutic instrument main machine 3 is used for introducing gas into the gas chamber or exhausting the gas in the gas chamber.

The therapeutic instrument host 3 comprises a control device, an inflation power control device 6, an inflation pump 7, an exhaust power control device 8, an exhaust pump 9, a pressure sensor 10 and an electromagnetic valve group 11. The solenoid valve group 11 includes a plurality of solenoid valves.

When the number of the pressure sensors is the same as that of the vent pipes, the detection end of the pressure sensor 10 is communicated with the vent pipe 2 through a gas pipeline, and the output end of the pressure sensor 10 is connected with the input end of the control device; the pressure sensor 10 is used to detect the real-time air pressure in the ventilation pipe. The gas pipeline adopts a hose.

When the number of the pressure sensors is two, one of the pressure sensors is arranged at the output end of the inflator pump and used for detecting the real-time air pressure of the air introduced into the air chamber; another pressure sensor is disposed at the input end of the exhaust pump for detecting the real-time pressure of the gas in the exhaust gas chamber.

The output end of the control device is respectively connected with the control end of the inflation power control device 6 and the control end of the exhaust power control device 8; the control device is used for acquiring an inflation boosting curve, an exhaust pressure reduction curve and real-time air pressure, comparing the real-time air pressure with the inflation boosting curve or the exhaust pressure reduction curve, and sending a reduction signal or an increase signal to the inflation power control device according to a comparison result, or sending a reduction signal or an increase signal to the exhaust power control device according to the comparison result.

The control device specifically includes: a manipulation device 4 and a controller 5.

The control device 4 is connected with the controller 5; the control device 4 is used for acquiring a charging and boosting curve and an exhausting and reducing curve and sending the charging and boosting curve and the exhausting and reducing curve to the controller 5. The control device is a human-computer interface and adopts a keyboard or a touch screen.

The output end of the controller 5 is respectively connected with the control end of the inflation power control device 6 and the control end of the exhaust power control device 8; the control device is used for comparing the real-time air pressure with an inflation pressure increasing curve or an exhaust pressure decreasing curve, and sending a reduction signal or an increase signal to the inflation power control device according to the comparison result, or sending a reduction signal or an increase signal to the exhaust power control device according to the comparison result. The controller adopts an embedded control circuit, and the embedded control circuit adopts a control circuit of an embedded system. The charge boost curve is shown in fig. 2.

The controller is also internally provided with a memory, and the memory is used for storing an inflation boosting curve and an exhaust decompression curve. The memory located in the embedded control circuit can store a certain number of preset inflation boosting curves and preset exhaust pressure reducing curves, and the inflation boosting curves and the exhaust pressure reducing curves stored in the memory can be downloaded through clinical research, networks or input by operators, so that the inflation boosting curves and the exhaust pressure reducing curves can be conveniently and directly called in the follow-up process.

The embedded control circuit includes a first control board 24, a second control board 25, and a Micro Controller Unit (MCU). The first control board 24 is connected with the second control board 25, and the MCU is welded on the second control board 25. The first control board is used for adjusting the alternating current output by the transformer into direct current for the MCU and the solenoid valve. The second control board is a drive circuit of the MCU and the electromagnetic valve, and is used for controlling the power of the air pump (the inflator pump and the exhaust pump) and the on-off of the electromagnetic valve according to the control signal of the MCU. The second control board 25 is connected with the electromagnetic valve, the inflator pump and the exhaust pump respectively. MCU can select singlechip.

The output end of the inflation power control device 6 is connected with an inflation pump 7; the inflation power control device 6 is configured to adjust the power supply to the inflator in accordance with the decrease signal or the increase signal. The inflation power control device adopts a power control circuit.

The output end of the exhaust power control device 8 is connected with an exhaust pump 9; the exhaust power control means 8 is adapted to adjust the power supply to the exhaust pump in accordance with the decrease signal or the increase signal. The exhaust power control device adopts a power control circuit.

The power control circuit is preferably a power control circuit based on a PWM (Pulse Width Modulation) technique.

One end of the electromagnetic valve is connected with the output end of the inflator pump 7 or the input end of the exhaust pump 9; the other end of the solenoid valve communicates with the gas chamber 14 through a vent tube.

The solenoid valve specifically includes: an inflation solenoid valve 12 and an exhaust solenoid valve 13.

The number of the inflation electromagnetic valves 12 is the same as that of the gas chambers 14, and one end of the inflation electromagnetic valves 12 is connected with the output end of the inflator 7; the other end of the charging solenoid valve 12 communicates with the gas chamber 14 through a vent pipe.

The number of the exhaust electromagnetic valves 13 is the same as that of the gas chambers 14, and one end of each exhaust electromagnetic valve 13 is connected with the input end of the exhaust pump 9; the other end of the exhaust solenoid valve 13 communicates with the gas chamber 14 through a breather pipe.

Each gas chamber 14 is connected with one charging solenoid valve 12 and one exhaust solenoid valve 13, and each gas chamber can be connected with one or two vent pipes of the charging solenoid valve and the exhaust solenoid valve.

Each of the charging solenoid valves and each of the discharging solenoid valves are connected to a controller, see fig. 3. The controller is also used for controlling the on and off of the inflation electromagnetic valve and the exhaust electromagnetic valve. The electromagnetic valve, the inflator pump, the exhaust pump and the touch screen are all connected with the controller through multi-core wires.

Referring to fig. 4, the main unit 3 further includes a housing 17, a transformer 18, a ventilation pipe connector 19 for connecting a ventilation pipe, a power switch 20 for controlling the main unit, a bracket for supporting the ventilation pipe connector, a solenoid valve bracket for supporting a solenoid valve, a power socket 21 for connecting a power supply, a fuse 22, and an emergency stop button 23. The power socket 21 is connected with one end of the transformer 18, one end of the fuse 22 is connected with the power switch 20, the other end of the fuse 22 is connected with one end of the transformer 18, the other end of the transformer 18 is connected with the first control board 24, and the emergency stop button 23 is arranged on a connecting lead of the other end of the transformer 18 and the first control board 24. The control device, the inflator pump, the exhaust pump, the pressure sensor, the inflation electromagnetic valve, the exhaust electromagnetic valve, the transformer, the vent pipe joint, the power switch, the support for supporting the vent pipe joint, the electromagnetic valve support, the power socket, the fuse and the emergency stop button are all arranged in the shell.

When the air pressure therapeutic apparatus works, the air pump in the main machine of the therapeutic apparatus outputs air with certain pressure intensity, the air is filled into the limb sleeve on the limb of the user through the vent pipe, and the limb of the user is physically pressed through the limb sleeve, so that the aim of physical therapy is fulfilled. In the inflation stage, the inflator provides an air source, the control device controls to open an inflation electromagnetic valve of the electromagnetic valve group, and the inflation electromagnetic valve plays a role in distributing air output by the inflator to different air chambers of the user limb sleeve; and in the exhaust stage, the control device controls to close the inflation electromagnetic valve and open the exhaust electromagnetic valve of the electromagnetic valve group, and the exhaust electromagnetic valve exhausts the gas of the user limb sleeve to the atmosphere through the exhaust pump. The control device controls and switches the flowing direction of the gas by controlling the opening and closing of the inflation electromagnetic valve and the exhaust electromagnetic valve, namely the gas flows into the limb sleeve when the inflation electromagnetic valve is opened, and the gas flows out of the limb sleeve when the exhaust electromagnetic valve is opened.

The working process of the air pressure therapeutic instrument comprises the steps that firstly, an operator inputs an inflation pressure increasing curve of the air pressure therapeutic instrument for inflating the air pressure into the limb sleeve of the user and an exhaust pressure decreasing curve of the exhausted air pressure on the control device according to the physical condition or the illness state of the user. The inflation and deflation pressure-increasing curves can be for the whole limb sleeve, and in practical details, the gas pressure of all the gas chambers can be synchronously adjusted or the gas pressure of one gas chamber can be independently adjusted according to requirements.

Then the main machine of the therapeutic apparatus is operated to start working, and the embedded control circuit in the main machine of the therapeutic apparatus operates the inflator pump to inflate the limb sleeve. When the pressure sensor is used for inflating, the embedded control circuit synchronously monitors the air pressure in the limb sleeve, the MCU reads data detected by the pressure sensor, and the rising speed of the air pressure is calculated by combining the inflated time calculated by the timer of the MCU. When the rising speed of the inflation pressure exceeds a first preset inflation threshold value of an inflation boosting curve, the embedded control circuit controls the inflated power control circuit to reduce the output of the inflator pump in a frequency conversion control mode; when the rising speed of the inflation pressure is lower than a second preset inflation threshold value of the inflation boosting curve, the embedded control circuit operates the inflation power control circuit to increase the output of the inflator pump; the gas pressure in the limb sleeve of the user is finally ensured to accord with a preset inflation pressure-boosting curve by continuously adjusting the flow of the gas. The process of deflating the limb sleeve is similar to the above-described inflation process, and the purpose of controlling the output gas pressure change can be achieved by implementing the adjustment of the inflation rate or the deflation rate to the air pressure treatment instrument. When the inflation process and the exhaust process are carried out, the electromagnetic valve group is opened firstly.

The user can also select the working mode, the preset pressure, the intermittent time, the holding time, the wireless communication setting and the like of the air pressure therapeutic apparatus on the touch screen or the keyboard, wherein the preset pressure refers to an inflation pressure-increasing curve and an exhaust pressure-decreasing curve. After the preset parameters are selected, the air pressure therapeutic apparatus can be operated to start working. The work of the air pressure therapeutic apparatus is controlled by a chip on an embedded control circuit, namely an MCU (micro control unit), the chip drives an inflator pump, an exhaust pump and an electromagnetic valve to work through a driving circuit, the power of the inflator pump or the exhaust pump is adjusted according to an inflation boosting curve or an exhaust pressure reduction curve, the on-off of the electromagnetic valve is controlled, and real-time air pressure detected by a pressure sensor is received to form a control loop.

In this embodiment, taking a working sequence of 4 gas chambers as an example, the control device first controls the inflator to start working through the inflation power control device, inputs air with pressure into the ventilation pipe, then operates the inflation solenoid valve corresponding to the first gas chamber to switch to an open state, at this time, the ventilation pipe starts to inflate the limb sleeve, meanwhile, the control device starts to measure the real-time gas pressure in the ventilation pipe through the pressure sensor, and when the real-time gas pressure reaches the preset pressure of the inflation boosting curve, the control device operates the inflation solenoid valve corresponding to the first gas chamber to switch to a state of maintaining the pressure. And then the control device controls the inflation electromagnetic valve corresponding to the second gas chamber to be switched to an open state, starts to inflate the second gas chamber, simultaneously keeps monitoring the real-time gas pressure, simultaneously calculates the time for keeping the gas pressure of the first gas chamber, and operates the exhaust electromagnetic valve of the first gas chamber to deflate after the preset time is reached. Repeating the steps to finally realize that all 4 gas chambers complete a preset inflation and deflation sequence.

The embodiment also provides a control method of the air pressure therapeutic apparatus, and the control method is applied to the air pressure therapeutic apparatus. The control method comprises the following steps:

and acquiring a charging pressure-increasing curve and a discharging pressure-reducing curve through a control device.

Real-time air pressure in the vent pipe is detected by a pressure sensor.

And during inflation, comparing the real-time air pressure with the inflation boosting curve to judge whether the inflation speed is greater than a first preset inflation threshold value or not, and obtaining a first judgment result.

If the first judgment result is yes, a reducing signal is sent to the inflation power control device, and the power supply power of the inflation power control device to the inflation pump is reduced.

If the first judgment result is negative, judging whether the inflation rate is smaller than a second preset inflation threshold value or not, and obtaining a second judgment result.

If the second judgment result is yes, an increasing signal is sent to the inflation power control device, and the power supply power of the inflation power control device to the inflation pump is increased.

And when exhausting, comparing the real-time air pressure with the exhaust pressure reduction curve to judge whether the exhaust speed is greater than a first preset exhaust threshold value or not, and obtaining a third judgment result.

If the third judgment result is yes, a reducing signal is sent to the exhaust power control device, and the power supply power of the exhaust power control device to the exhaust pump is reduced.

If the third judgment result is negative, judging whether the exhaust rate is smaller than a second preset exhaust threshold value or not, and obtaining a fourth judgment result.

If the fourth judgment result is yes, an increasing signal is sent to the exhaust power control device, and the power supply power of the exhaust power control device to the exhaust pump is increased.

The present embodiment further provides another air pressure therapy apparatus, which is different from the above air pressure therapy apparatus in that the air pressure therapy apparatus uses an electric angle valve, and the main machine of the therapy apparatus does not include an inflation power control device and an exhaust power control device, fig. 5 is a structural diagram of another air pressure therapy apparatus according to an embodiment of the present invention, and referring to fig. 5, the air pressure therapy apparatus includes: a limb sleeve 1, a ventilation tube 2 and a therapeutic instrument host 3.

The limb sleeve 1 comprises a plurality of gas chambers 14; the limb sleeve 1 is used to apply pressure to a limb of a user.

The therapeutic instrument main machine 3 comprises a control device, an air pump 15, a pressure sensor 10 and an angle valve group 16. The angle valve block 16 includes a plurality of electrically operated angle valves or electrically operated regulator valves.

When the number of the pressure sensors is one, the pressure sensors are arranged between the air pump and the electric angle valve and used for introducing air into the air chamber or discharging the real-time air pressure of the air in the air chamber.

The output end of the control device is connected with the control end of the electric angle valve; the control device is used for acquiring an inflation boosting curve, an exhaust pressure reduction curve and real-time air pressure, comparing the real-time air pressure with the inflation boosting curve or the exhaust pressure reduction curve, adjusting the electric angle valve to reduce or increase the air flow conveyed to the air chamber according to a comparison result, or adjusting the electric angle valve to reduce or increase the air flow exhausted from the air chamber according to the comparison result.

One end of the electric angle valve is connected with the air pump 15; the other end of the electrokinetic angle valve is communicated with the gas chamber 14 through a vent pipe.

The electric angle valve specifically includes: an inflation angle valve and a deflation angle valve. And the inflation angle valve and the exhaust angle valve are both electric angle valves or electric regulating valves.

The number of the inflation angle valves is the same as that of the gas chambers 14, and one end of each inflation angle valve is connected with the output end of the gas pump 15; the other end of the inflation angle valve communicates with the gas chamber 14 through a vent tube.

The number of the exhaust angle valves is the same as that of the gas chambers 14, and one end of each exhaust angle valve is connected with the input end of the gas pump 15; the other end of the exhaust angle valve communicates with the gas chamber 14 through a vent pipe.

Each gas chamber 14 is connected to an inflation angle valve and a venting angle valve, and the number of vent pipes connecting each gas chamber to the inflation angle valve and the venting angle valve may be one or two.

The control device 4 is connected with the controller 5; the control device 4 is used for acquiring a charging and boosting curve and an exhausting and reducing curve and sending the charging and boosting curve and the exhausting and reducing curve to the controller 5. The control device adopts a keyboard or a touch screen.

The output end of the controller 5 is respectively connected with the control end of the inflation angle valve and the control end of the exhaust angle valve; the control device is used for comparing the real-time air pressure with an inflation pressure increasing curve or an exhaust pressure decreasing curve, adjusting the inflation angle valve according to the comparison result, reducing or increasing the air flow conveyed to the air chamber, or adjusting the exhaust angle valve according to the comparison result, and reducing or increasing the air flow exhausted from the air chamber. The controller adopts an embedded control circuit, and the embedded control circuit adopts a control circuit of an embedded system. The controller is also internally provided with a memory, and the memory is used for storing an inflation boosting curve and an exhaust decompression curve. The memory located in the embedded control circuit can store a certain number of preset inflation boosting curves and preset exhaust pressure reducing curves, and the inflation boosting curves and the exhaust pressure reducing curves stored in the memory can be downloaded through clinical research, networks or input by operators, so that the inflation boosting curves and the exhaust pressure reducing curves can be conveniently and directly called in the follow-up process.

Each inflation angle valve and each exhaust angle valve are connected with a controller, and the controller is further used for controlling the on and off of the inflation angle valves and the exhaust angle valves.

The embedded control circuit comprises a first control board, a second control board and an MCU. The first control board is connected with the second control board, and the MCU is welded on the second control board. The first control board is used for adjusting the alternating current output by the transformer into the direct current for the MCU and the electric angle valve. The second control board is a driving circuit of the MCU and the electric angle valve and is used for controlling the power of the air pump and the on-off of the electric angle valve according to the control signal of the MCU. The second control panel is connected with electronic angle valve and air pump respectively. MCU can select singlechip.

The therapeutic instrument host machine also comprises a shell, a transformer, a breather pipe joint for connecting a breather pipe, a power switch for controlling the therapeutic instrument host machine, a bracket for supporting the breather pipe joint, an angle valve bracket for supporting an electric angle valve, a power socket for connecting a power supply, a fuse and an emergency stop button. Supply socket is connected with the one end of transformer, and the one end and the switch of fuse are connected, and the other end and the one end of transformer of fuse are connected, and the other end and the first control panel of transformer are connected, and emergency stop button sets up on the other end of transformer and the connecting wire of first control panel. The control device, the air pump, the pressure sensor, the angle valve group, the transformer, the vent pipe joint, the power switch, the bracket for supporting the vent pipe joint, the angle valve bracket, the power socket, the fuse and the emergency stop button are all arranged in the shell.

When the air pressure therapeutic apparatus works, the air pump in the main machine of the therapeutic apparatus outputs air with certain pressure intensity, the air is filled into the limb sleeve on the limb of the user through the vent pipe, and the limb of the user is physically pressed through the limb sleeve, so that the aim of physical therapy is fulfilled. In the inflation stage, the air pump provides an air source, the controller controls the inflation angle valve to be opened, and the inflation angle valve plays a role in distributing air output by the air pump to different chambers of the limb sleeve of a user; and in the exhaust stage, the controller controls the inflation angle valve to be closed and the exhaust angle valve to be opened, so that the gas circulation direction is switched, and the gas in the limb sleeve of the user is exhausted to the atmosphere. The control device controls and switches the flowing direction of the gas by controlling the opening and closing of the inflation angle valve and the exhaust angle valve, namely the gas flows into the limb sleeve when the inflation angle valve is opened, and the gas flows out of the limb sleeve when the exhaust angle valve is opened.

The working process of the air pressure therapeutic instrument comprises the steps that firstly, an operator inputs an inflation pressure increasing curve and an exhaust pressure decreasing curve of the air pressure therapeutic instrument to inflate the air pressure into the limb sleeve of the user on the control device according to the physical condition or the illness state of the user. The inflation and deflation pressure-increasing curves can be for the whole limb sleeve, and in practical details, the gas pressure of all the gas chambers can be synchronously adjusted or the gas pressure of one gas chamber can be independently adjusted according to requirements.

Then the main machine of the therapeutic apparatus is operated to start working, and the embedded control circuit in the main machine of the therapeutic apparatus operates the air pump to start inflating the limb sleeve. When the limb sleeve is inflated, the embedded control circuit synchronously monitors the air pressure in the limb sleeve, the MCU reads data detected by the pressure sensor, and the rising speed of the air pressure, namely the inflation rate, is calculated by combining the inflated time calculated by the timer of the MCU. When the rising speed of the inflation pressure exceeds a first preset inflation threshold value, the embedded control circuit operates the inflation angle valve to reduce the gas flow of the inflation passage; when the rising speed of the inflation pressure is lower than a second preset inflation threshold value, the embedded control circuit operates the inflation angle valve to increase the gas flow of the inflation passage, and finally the gas pressure in the limb sleeve of the user is ensured to accord with a preset inflation boosting curve by continuously adjusting the inflation speed. The process of exhausting the limb sleeve is similar to the process of inflating, so that the air pressure therapeutic apparatus can achieve the purpose of controlling the pressure change of the output air. When the inflation process and the exhaust process are carried out, the angle valve group is opened firstly.

The user can also select the working mode, the preset pressure, the intermittent time, the holding time, the wireless communication setting and the like of the air pressure therapeutic apparatus on the touch screen or the keyboard, wherein the preset pressure refers to an inflation pressure-increasing curve and an exhaust pressure-decreasing curve. After the preset parameters are selected, the air pressure therapeutic apparatus can be operated to start working. The work of the air pressure therapeutic apparatus is controlled by a chip on an embedded control circuit, namely an MCU (micro control unit), the chip drives the air pump and the electric angle valve to work through the driving circuit, the power of the air pump is adjusted according to an inflation boosting curve or an exhaust pressure reduction curve, the on-off of the electric angle valve is controlled, and the real-time air pressure detected by the pressure sensor is received to form a control loop.

Taking the working sequence of 4 gas chambers as an example, the control device firstly controls the air pump to start working, air with pressure is input into the vent pipe, then the inflation angle valve corresponding to the first gas chamber is operated to be switched to an opening state, the vent pipe starts to inflate the limb sleeve, meanwhile, the control device starts to measure the real-time gas pressure in the vent pipe through the pressure sensor, and when the real-time gas pressure reaches the preset pressure of the inflation boosting curve, the control device operates the inflation angle valve corresponding to the first gas chamber to be switched to a pressure maintaining state. And then the control device controls the inflation angle valve corresponding to the second gas chamber to be switched to an opening state, starts to inflate the second gas chamber, simultaneously keeps monitoring the real-time gas pressure, simultaneously calculates the time for keeping the gas pressure of the first gas chamber, and operates the exhaust angle valve of the first gas chamber to deflate after the preset time is reached. Repeating the steps to finally realize that all 4 gas chambers complete a preset inflation and deflation sequence.

In another embodiment, an air pressure therapy apparatus is further provided, which is different from the above air pressure therapy apparatus in that a therapy apparatus main unit of the air pressure therapy apparatus does not include an inflation power control device and an exhaust power control device, and fig. 6 is a structural diagram of another air pressure therapy apparatus according to an embodiment of the present invention, referring to fig. 6, the air pressure therapy apparatus includes: a limb sleeve 1, a ventilation tube 2 and a therapeutic instrument host 3.

The therapeutic instrument host 3 comprises a control device, an air pump 7, an exhaust pump 9, a pressure sensor 10 and an electromagnetic valve set 11. The solenoid valve group 11 includes a plurality of solenoid valves.

The output end of the control device is connected with the control end of the electromagnetic valve; the control device is used for acquiring an inflation pressure increasing curve and an exhaust pressure reducing curve, comparing the real-time air pressure with the inflation pressure increasing curve or the exhaust pressure reducing curve, and adjusting the opening time of the electromagnetic valve according to the comparison result.

The control device 4 is connected with the controller 5; the control device 4 is used for acquiring a charging and boosting curve and an exhausting and reducing curve and sending the charging and boosting curve and the exhausting and reducing curve to the controller 5.

The output end of the controller 5 is respectively connected with the control end of the inflation electromagnetic valve and the control end of the exhaust electromagnetic valve; the control device is used for comparing the real-time air pressure with an inflation pressure increasing curve or an exhaust pressure decreasing curve, and reducing or increasing the opening time of the inflation electromagnetic valve according to the comparison result or reducing or increasing the opening time of the exhaust electromagnetic valve according to the comparison result. The controller adopts an embedded control circuit, and the embedded control circuit adopts a control circuit of an embedded system.

Each inflation electromagnetic valve and each exhaust electromagnetic valve are connected with the controller, and the controller is further used for controlling the on and off of the inflation electromagnetic valves and the exhaust electromagnetic valves.

The embedded control circuit comprises a first control board, a second control board and an MCU. The first control board is connected with the second control board, and the MCU is welded on the second control board. The first control board is used for adjusting the alternating current output by the transformer into direct current for the MCU and the solenoid valve. The second control board is a drive circuit of the MCU and the electromagnetic valve, and is used for controlling the power of the air pump (the inflator pump and the exhaust pump) and the on-off of the electromagnetic valve according to the control signal of the MCU. The second control panel is respectively connected with the electromagnetic valve, the inflator pump and the exhaust pump. MCU can select singlechip.

When the air pressure therapeutic apparatus works, the air pump in the main machine of the therapeutic apparatus outputs air with certain pressure intensity, the air is filled into the limb sleeve on the limb of the user through the vent pipe, and the limb of the user is physically pressed through the limb sleeve, so that the aim of physical therapy is fulfilled. In the inflation stage, the inflator provides an air source, the control device controls to open an inflation electromagnetic valve of the electromagnetic valve group, and the inflation electromagnetic valve plays a role in distributing air output by the inflator to different chambers of the user limb sleeve; and in the exhaust stage, the control device controls to close the inflation electromagnetic valve and open the exhaust electromagnetic valve of the electromagnetic valve group, and the exhaust electromagnetic valve exhausts the gas of the user limb sleeve to the atmosphere. The control device controls and switches the flowing direction of the gas by controlling the opening and closing of the inflation electromagnetic valve and the exhaust electromagnetic valve, namely the gas flows into the limb sleeve when the inflation electromagnetic valve is opened, and the gas flows out of the limb sleeve when the exhaust electromagnetic valve is opened.

The working process of the air pressure therapeutic instrument comprises the steps that firstly, an operator inputs an inflation pressure increasing curve and an exhaust pressure decreasing curve of the air pressure therapeutic instrument to inflate the air pressure into the limb sleeve of the user on the control device according to the physical condition or the illness state of the user. The inflation and deflation pressure-increase curves may be for the entire limb sleeve, or the gas pressure of all gas chambers may be adjusted simultaneously in actual detail or one gas chamber may be adjusted individually as desired.

Then the main machine of the therapeutic apparatus is operated to start working, and the embedded control circuit in the main machine of the therapeutic apparatus operates the inflator pump to inflate the limb sleeve. When the limb sleeve is inflated, the embedded control circuit synchronously monitors the air pressure in the limb sleeve, the MCU reads data detected by the pressure sensor, and the rising speed of the air pressure, namely the inflation rate, is calculated by combining the inflated time calculated by the timer of the MCU. When the rising speed of the inflation pressure exceeds a first preset inflation threshold value, the embedded control circuit operates the inflation electromagnetic valve to reduce the opening time; when the rising speed of the inflation pressure is lower than a second preset inflation threshold value, the control circuit operates the inflation electromagnetic valve to increase the opening time; the pressure in the limb sleeve of the user is finally ensured to accord with a preset inflation pressure-boosting curve by continuously adjusting the flow of the inflation gas. The process of exhausting the limb sleeve is similar to the process of inflating, so that the air pressure therapeutic apparatus can achieve the purpose of controlling the pressure change of the output air. When the inflation process and the exhaust process are carried out, the electromagnetic valve group is opened firstly.

Taking the working sequence of 4 gas chambers as an example, the control device firstly controls the inflator pump to start working, air with pressure is input into the vent pipe, then the inflation electromagnetic valve corresponding to the first gas chamber is operated to switch to the opening state, the vent pipe starts to inflate the limb sleeve, meanwhile, the control device starts to measure the real-time gas pressure in the vent pipe through the pressure sensor, and when the real-time gas pressure reaches the preset pressure of the inflation boosting curve, the control device operates the inflation electromagnetic valve corresponding to the first gas chamber to switch to the state of keeping the pressure. And then the control device controls the inflation electromagnetic valve corresponding to the second gas chamber to be switched to an open state, starts to inflate the second gas chamber, simultaneously keeps monitoring the real-time gas pressure, simultaneously calculates the time for keeping the gas pressure of the first gas chamber, and operates the exhaust electromagnetic valve of the first gas chamber to deflate after the preset time is reached. Repeating the steps to finally realize that all 4 gas chambers complete a preset inflation and deflation sequence.

The principle of the air pressure therapeutic apparatus of the present invention is shown in fig. 7: the limb sleeve is divided into a plurality of gas chambers, the gas chambers receive air with certain pressure output by the therapeutic instrument host, and the expansion of the gas chambers forms certain pressure on the limbs of a user. When the first gas chamber is inflated to the preset pressure of the inflation and pressure increase curve, the main machine of the therapeutic instrument controls the next gas chamber to be inflated according to the preset sequence, and each gas chamber is inflated, expanded and deflated successively. The deposited tissue fluid can be pushed back into the blood circulation according to the gradual inflation and deflation from the far-end to the near-end, so as to promote the venous blood backflow, help to prevent deep venous thrombosis and eliminate limb venous edema; according to the reverse process, the traditional Chinese medicine composition is beneficial to improving limb ischemic diseases, treating lower limb arterial ischemic diseases, promoting limb blood circulation and relieving various symptoms caused by the limb ischemic diseases.

The air pressure therapeutic apparatus of the invention adopts an embedded single chip system for control, uses an electromagnetic valve or an electric angle valve to control the air with certain pressure output by an air pump, and fills the air into a limb sleeve sleeved outside the limb of a user according to a certain operation mode sequence to carry out physical therapy on the user.

The parameters of pressure, sequence, time and the like of inflation can be set by adopting a singlechip, so that multiple treatment modes can be combined, the device is suitable for treating different types of users, and the device has obvious treatment effect on symptoms such as edema and blood circulation disorder.

The air pressure therapeutic instrument adopts an embedded single chip microcomputer as a core, receives operation through a control device, controls an air pump to output air with certain pressure, and distributes the air into a pressure leg sleeve through an electromagnetic valve or an electric angle valve. The limb sleeve for wrapping the limb and the inflating and deflating system consisting of the therapeutic instrument host machine for inflating generate pulsating blood flow through the circulatory system of the limb through the mechanical action of periodic pressurization and depressurization, thereby promoting the blood circulation of the limb.

The part of the air pressure therapeutic apparatus acting on a user is one or a pair of limb sleeves with one or a plurality of independent air chambers, and the working part is an embedded single-chip microcomputer controlled therapeutic apparatus main machine, an air pump and an electromagnetic valve set or an angle valve set. When the operating personnel sets parameters such as working time, air pressure and the like of the air pressure therapeutic apparatus through the control device, the embedded single chip microcomputer controls the air pump and the electromagnetic valve set or the angle valve set to work according to the set parameters. In the working process, the air pressure therapeutic apparatus acts on the limb of the user and lasts for a certain time through different air pressures and air inflation and deflation sequences, so that the aim of improving the body fluid circulation state of the limb of the user in a physical mode is fulfilled.

The invention controls the speed of air inflation and deflation of the air pressure therapeutic apparatus by adjusting the power of the air inflation and deflation pumps, the opening and closing angles of the air inflation and deflation angle valves and the opening and closing time of the air inflation and deflation electromagnetic valves, thereby achieving the purpose of adjusting the pressure change curve in the air inflation and deflation process; according to users with different diseases and courses, the inflation and deflation air pressure curve of the air pressure therapeutic apparatus can be adjusted. The adjustment mode is to input the corresponding relation between the charging and discharging pressure and the time on the touch screen or the keyboard, or to directly draw the corresponding relation between the charging and discharging pressure and the time on the touch screen; the invention can intelligently adjust the real-time inflation and deflation curve according to the relationship between the inflation and deflation rate and the inflation and pressurization curve and the exhaust and depressurization curve. The invention can preset an effective inflation/deflation air pressure curve mode obtained through clinical research, and the effective inflation/deflation air pressure curve mode is stored in the air pressure therapeutic apparatus as a therapeutic template, so that the effective inflation/deflation air pressure curve mode is convenient to call at any time. Since the stored data is limited by the memory capacity, the number of the pre-stored templates can be greatly increased by increasing the memory capacity; and the preset inflation and deflation air pressure curve can be downloaded through a network.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the system disclosed by the embodiment, the description is relatively simple because the system corresponds to the method disclosed by the embodiment, and the relevant points can be referred to the method part for description.

The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.

Claims

1. An air pressure treatment apparatus, comprising: a limb sleeve, a breather pipe and a therapeutic instrument host;

2. The air pressure treatment apparatus according to claim 1, wherein said control means comprises in particular: a control device and a controller;

3. The air pressure treatment apparatus according to claim 1, wherein the solenoid valve comprises: an inflation solenoid valve and an exhaust solenoid valve;

4. An air pressure treatment apparatus control method applied to the air pressure treatment apparatus according to any one of claims 1 to 3, comprising:

detecting real-time air pressure in the vent pipe by using a pressure sensor;

5. An air pressure treatment apparatus, comprising: a limb sleeve, a breather pipe and a therapeutic instrument host;

6. The air pressure treatment apparatus of claim 5, wherein the motorized angle valve comprises: an inflation angle valve and a discharge angle valve;

7. The air pressure treatment apparatus according to claim 6, wherein said control means comprises in particular: a control device and a controller;

8. An air pressure treatment apparatus, comprising: a limb sleeve, a breather pipe and a therapeutic instrument host;

9. The air pressure treatment apparatus according to claim 8, wherein the solenoid valve comprises: an inflation solenoid valve and an exhaust solenoid valve;

10. The air pressure treatment apparatus according to claim 9, wherein said control means comprises in particular: a control device and a controller;