CN219148410U - High-pressure stored gas external counterpulsation gas circuit system - Google Patents
High-pressure stored gas external counterpulsation gas circuit system Download PDFInfo
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- CN219148410U CN219148410U CN202222204739.7U CN202222204739U CN219148410U CN 219148410 U CN219148410 U CN 219148410U CN 202222204739 U CN202222204739 U CN 202222204739U CN 219148410 U CN219148410 U CN 219148410U
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Abstract
A high pressure stored-gas external counterpulsation gas circuit system, comprising: the device comprises an air compressor, an air storage tank, a pressure stabilizing valve, a sequential air charging and discharging module and an air bag part; the balloon portion includes at least one balloon; the air storage tank, the pressure stabilizing valve, the sequential air charging and discharging module and the air bag part are sequentially communicated to form an air path, and the air compressor is connected with the air storage tank for charging; the sequential air charging and discharging module comprises an air discharging electromagnetic valve, an air charging electromagnetic valve, a safety valve and a multi-way valve block. According to the high-pressure air storage external counterpulsation air circuit system, the air compressor and the air storage tank are matched to provide high-pressure air, so that the problem of large volume of the external counterpulsation air circuit is solved. According to the utility model, the air channel is adjusted through the sequential air charging and discharging module, so that the air charging and discharging and pressure maintaining of the air bag are realized, the air channel is flexible, and the control is convenient. The combination of the sequential air charging and discharging module and the high-pressure air can realize the rapid air charging of the air bag and improve the duration of the effective treatment pressure stage.
Description
Technical Field
The utility model relates to the field of medical equipment, in particular to a high-pressure gas storage external counterpulsation gas circuit system.
Background
The external counterpulsation is a method for reducing and eliminating the symptoms of the angina pectoris and improving the anoxic ischemia state of important organs of the organism by pressing the lower half body in vitro in a noninvasive manner, and is also medical equipment for preventing and treating cardiovascular and cerebrovascular diseases. The inflatable bag is inflated and pressurized by the air bag wrapped on the limbs and the buttocks in the diastole, so that the blood of the arteries of the limbs is driven back to the aorta, the diastole is obviously increased, the blood flow is increased for the heart, and the afterload of the heart is reduced; the air sac rapidly exhausts air in the systole stage, the pressure is relieved, the intra-aortic contraction is promoted to be reduced, the resistance of the heart in the ejection stage is relieved to the maximum extent, and the blood is accelerated to flow to the far end, so that the counterpulsation effect is achieved.
The pressure in the air storage tank of the traditional pneumatic external counterpulsation device is not more than 60Kpa, so that the air storage tank is overlarge in volume and not easy to transport and use, meanwhile, the time required for reaching the treatment pressure of the air bag is longer because of the low pressure in the air storage tank, and the time in the effective treatment pressure stage is shorter in one pressure maintaining period.
Disclosure of Invention
In order to overcome the defects of large volume and short time for effectively treating pressure phase of the pneumatic external counterpulsation device in the prior art, the utility model provides a high-pressure gas storage external counterpulsation gas circuit system and a control method thereof.
The utility model provides a high-pressure stored gas external counterpulsation gas circuit system, which comprises: the device comprises an air compressor, an air storage tank, a pressure stabilizing valve, a sequential air charging and discharging module and an air bag part; the balloon portion includes at least one balloon;
the air storage tank, the pressure stabilizing valve, the sequential air charging and discharging module and the air bag part are sequentially communicated to form an air path, and the air compressor is connected with the air storage tank for charging;
the sequential air charging and discharging module comprises an air discharging electromagnetic valve, an air charging electromagnetic valve, a safety valve and a multi-way valve block; the inside of the multi-way valve block is provided with an exhaust channel, an inflation channel and an air inflation channel which are communicated with each other; the air inlet end of the air exhaust electromagnetic valve is communicated with the air exhaust channel, and the air outlet end of the air exhaust electromagnetic valve is connected with the air outlet end of the air exhaust electromagnetic valve in an empty way; the air inlet end of the air charging electromagnetic valve is communicated with the output end of the pressure stabilizing valve, the air outlet end of the air charging electromagnetic valve is communicated with the air charging channels, the air bag channels are equal in number and correspond to the air bags one by one, and the air bag channels are communicated with the corresponding air bags;
the safety valve is connected with the inflation electromagnetic valve and is communicated with the air outlet end of the inflation electromagnetic valve.
Preferably, the sequential air charging and discharging module further comprises an air discharging connecting pipe and an air charging connecting pipe, wherein the air discharging connecting pipe is used for connecting an air discharging electromagnetic valve and a multi-way valve block, and the air charging connecting pipe is used for connecting the air charging electromagnetic valve and the multi-way valve block; the safety valve is fixedly connected with the inflation electromagnetic valve, and the inflation connecting pipe is detachably connected with the inflation electromagnetic valve/multi-way valve block; the exhaust connecting pipe is detachably connected with the exhaust electromagnetic valve/multi-way valve block.
Preferably, the inflation connecting tube and the exhaust connecting tube are hoses.
Preferably, the inflation connecting pipe and the exhaust connecting pipe are detachably connected with the multi-way valve block; one end of the air charging connecting pipe connected with the multi-way valve block is provided with a first annular pipe which surrounds the outer periphery of the air charging connecting pipe, and the first annular pipe is communicated with the inner periphery of the air charging connecting pipe; the inner wall of the inflation channel is provided with a first groove for accommodating the first ring pipe; one end of the exhaust connecting pipe connected with the multi-way valve block is provided with a second annular pipe which surrounds the outer periphery of the exhaust connecting pipe, and the second annular pipe is communicated with the inner periphery of the exhaust connecting pipe; the inner wall of the exhaust channel is provided with a second groove for accommodating a second ring pipe; the first annular pipe and the inflation connecting pipe are integrally formed, and the second annular pipe and the exhaust connecting pipe are integrally formed.
Preferably, the sequential inflation and deflation modules and the airbag portions are equal in number and correspond to each other one by one, and the airbag channels of each sequential inflation and deflation module are connected with the airbags in the corresponding airbag portion.
Preferably, the device further comprises a control module and an air bag detection part which is in one-to-one correspondence with the air bag part; the control module is respectively connected with the air bag detection part and the inflation electromagnetic valve and the exhaust electromagnetic valve of each sequential inflation and exhaust module;
the sequential air charging and discharging module is provided with three working states; in the first working state, the inflation electromagnetic valve and the exhaust electromagnetic valve are both closed, and the air bag part is in a closed state; in the second working state, the inflation electromagnetic valve is switched on, the exhaust electromagnetic valve is switched off, and the air bag part is in an inflation state; in the third working state, the inflation electromagnetic valve is closed, the exhaust electromagnetic valve is opened, and the air bag part is communicated with the outside and is deflated;
the air bag detection part is used for detecting the pressure of each air bag in the air bag part; the control module is used for controlling the corresponding sequential air charging and discharging module to switch between a first working state and a second working state according to the detection value of the air bag detection part; the control module is also used for switching the sequential air charging and discharging module to a third working state to enable the air bag to be partially deflated.
Preferably, the air outlet end of the inflation electromagnetic valve is provided with a second pressure sensor, the control module is respectively connected with the second pressure sensor and the safety valve, and the control module is used for controlling the safety valve to be opened when the detection value of the second pressure sensor is larger than a set safety threshold value.
Preferably, a first pressure sensor for detecting the pressure of the air storage tank is arranged on the air storage tank, and the control module is further used for controlling the air compressor to work according to the pressure signal of the first pressure sensor, so that the pressure of the air storage tank is maintained within a set pressure range.
The utility model also provides a control method of the high-pressure gas storage external counterpulsation gas circuit system, which can prevent the excessive pressure caused by the too fast inflation and ensure the safety of the high-pressure inflation.
The control method is suitable for the high-pressure gas storage external counterpulsation gas circuit system, so as to control the pressure of each air bag of the air bag part under the working state of the gas circuit system; the control method comprises the following steps:
s1, monitoring the pressure of the air storage tank in real time, and controlling the air compressor to charge air to the air storage tank when the pressure of the air storage tank is lower than the lower limit value of the set pressure range until the pressure of the air storage tank reaches the upper limit value of the set pressure range, so that the air pressure of the air storage tank is in the set pressure range in real time;
s2, acquiring a corresponding relation between the unnecessary pressure threshold and the inflation time length;
s3, acquiring an inflation time length corresponding to a pressure threshold serving as an inflation target as a target value;
s4, when the air bag is inflated, the sequential inflation and deflation module corresponding to the air bag is switched to a second working state for inflation;
s5, when the continuous inflation time reaches a target value, switching the sequential inflation and deflation module to a first working state; judging whether the air bag pressure is equal to an inflation target or not; if yes, returning to the step S4 when the next inflation is performed; when the pressure of the air bag is higher than the inflation target, updating the target value into a target value-float value, and returning to the step S4 when the air bag is inflated next time; when the air bag pressure is smaller than the inflation target, updating the target value into a target value plus a floating difference value, and returning to the step S4 when the air bag is inflated next time; the float value is greater than or equal to 1 millisecond and less than or equal to 10 milliseconds.
The utility model has the advantages that:
(1) According to the high-pressure air storage external counterpulsation air circuit system, the air compressor and the air storage tank are matched to provide high-pressure air, so that the problem of large volume of the external counterpulsation air circuit is solved. According to the utility model, the air channel is adjusted through the sequential air charging and discharging module, so that the air charging and discharging and pressure maintaining of the air bag are realized, the air channel is flexible, and the control is convenient. The combination of the sequential air charging and discharging module and the high-pressure air can realize the rapid air charging of the air bag and improve the duration of the effective treatment pressure stage.
(2) In the utility model, the inflation electromagnetic valve and the exhaust electromagnetic valve are detachably connected with the multi-way valve block through the inflation connecting pipe and the exhaust connecting pipe respectively, and the inflation electromagnetic valve, the exhaust electromagnetic valve and the multi-way valve block can be flexibly disassembled and assembled, so that the storage and the transportation are convenient. The hose is adopted for the inflation connecting pipe and the exhaust connecting pipe, so that the requirement of the sequential inflation and exhaust module on the placement environment is reduced during working, and the application of the high-pressure gas storage external counterpulsation gas circuit system in various environments is facilitated.
(3) The inflation connecting pipe is connected with the multi-way valve block through the clamping of the first annular pipe and the first groove. The inflatable connecting pipe is a hose, and the first annular pipe can be inserted into the first groove or separated from the first groove through deformation of the inflatable connecting pipe. Under the state that first ring canal inserts first recess, when the inflation solenoid valve opened, there is high pressure gas to flow in the inflation connecting pipe, thereby first ring canal and inflation connecting pipe intercommunication are propped up the inflation by high pressure gas for first ring canal closely laminates with first recess, thereby realizes the sealing connection of inflation connecting pipe and multiple unit valve piece. And similarly, the exhaust connecting pipe is connected with the multi-way valve block through the clamping of the second annular pipe and the second groove, so that the exhaust connecting pipe is convenient to detach and the air tightness during connection is guaranteed.
(4) The sequential air charging and discharging modules are in one-to-one correspondence with the air bag parts, and the pressure stabilizing valve is connected with the air bag in the corresponding air bag part through the sequential air charging and discharging modules. When the air bag part comprises a plurality of air bags, the pressure required by the work of the air bags is the same, the uniform control of the air bags with the same treatment pressure is realized, and compared with the independent control of each air bag, the air bag has the advantages of simplifying the air path structure, saving the number of components and reducing the cost.
(5) The safety valve can avoid the safety risk caused by overlarge pressure of the air bag. The safety valve is connected with the inflation electromagnetic valve, so that safety protection of a plurality of air bags connected with the same sequential inflation and deflation module is realized.
(6) According to the control method of the high-pressure gas storage external counterpulsation gas circuit system, which is provided by the utility model, the air storage tank is combined with the air compressor to charge the air bag with high-pressure gas, so that the charging speed is extremely high, the charging time is shortened, and the pressure maintaining time is prolonged. The length of the next inflation is adjusted according to the pressure of the inflated air bag, the inflation length of each inflation is a preset value, the risk of high-pressure over inflation is avoided, and the pressure of the air bag is always in a safety range during high-pressure rapid inflation and over inflation.
(7) According to the utility model, through the combination of high-pressure quick charging and a preset target value, the risk of excessive pressure caused by excessive inflation of the air bags which are in-vitro refuted by the high-pressure quick charging is overcome, and the safe application of the high-pressure quick charging in the in-vitro counterpulsation technology is facilitated.
Drawings
FIG. 1 is a schematic diagram of a connection of a high-pressure gas storage external counterpulsation gas circuit system;
FIG. 2 is a perspective view of a sequential charge and exhaust module;
FIG. 3 is a schematic cross-sectional view of a sequential charge and exhaust module;
FIG. 4 is a schematic diagram of another connection of a high-pressure gas storage external counterpulsation gas circuit system;
FIG. 5 is a flow chart of a control method of the external counterpulsation gas circuit system of the high-pressure gas storage body;
the diagram is: 1-an air compressor; 2-an air storage tank; 3-a pressure stabilizing valve; 4-a first pressure sensor; 5-sequential air charging and discharging modules; 51-an exhaust solenoid valve; 52-an inflation solenoid valve; 53-safety valve; 54-a multi-way valve block; 541-balloon passage; 542-inflation channel; 543-exhaust passage; 55. an exhaust connection pipe; 56. an inflation connecting pipe; 57-a second pressure sensor; a 6-balloon portion; 7-a control module; 8-relay; 9-an air bag detection unit.
Detailed Description
High-pressure stored gas external counterpulsation gas circuit system
The external counterpulsation gas circuit system of high-pressure gas storage that this embodiment provided includes: the air compressor comprises an air compressor 1, an air storage tank 2, a pressure stabilizing valve 3, a sequential air charging and discharging module 5, an air bag part 6, a control module 7 and an air bag detection part 9. The air compressor 1 is connected with the air storage tank 2 for inflation and pressurization, the air storage tank 2, the pressure stabilizing valve 3, the sequential inflation and deflation module 5 and the air bag part 6 are sequentially communicated to form an air path, the air storage tank 2 outputs stable air pressure through the pressure stabilizing valve 3, and when the sequential inflation and deflation module 5 is conducted, the stable air pressure output by the pressure stabilizing valve 3 inflates each air bag in the air bag part 6. The balloon portion 6 comprises at least one balloon.
The sequential charge and discharge module 5 includes a discharge solenoid valve 51, a charge solenoid valve 52, a relief valve 53, and a multiple-way valve block 54. The inside of the multiple-way valve block 54 is provided with an exhaust passage 543, an inflation passage 542 and an airbag passage 541 which are communicated with each other. The air inlet end of the air exhaust electromagnetic valve 51 is communicated with the air exhaust channel 543, the air inlet end of the air inflation electromagnetic valve 52 is communicated with the output end of the pressure stabilizing valve 3, the air outlet end of the air inflation electromagnetic valve 52 is communicated with the air inflation channel 542, the air bag channels 541 are equal to and correspond to the air bags of the air bag part 6 in number one by one, and each air bag channel 541 is communicated with the corresponding air bag.
The sequential inflation and deflation modules 5 are in one-to-one correspondence with the airbag portions 6, and the pressure stabilizing valves 3 are connected with the airbags in the corresponding airbag portions 6 through the sequential inflation and deflation modules 5. When the bladder portion 6 contains a plurality of bladders, the pressures required for the plurality of bladders to operate are the same. For example, a certain high-pressure gas storage external counterpulsation gas circuit system comprises a hip gas bag and two thigh gas bags, wherein the required pressure of the two thigh gas bags is the same, and the required pressure of the thigh gas bags is different from that of the hip gas bag, so that the two thigh gas bags belong to the same gas bag part 6; the hip air-bag and the thigh air-bag belong to different air-bag parts.
The sequential air charging and discharging module 5 is provided with three working states. In the first operating state, the inflation solenoid valve 52 and the exhaust solenoid valve 51 are both closed, the pressure stabilizing valve 3 is blocked from the air bag portion 6, and the air bag portion 6 is in a closed state, and neither inflation nor exhaust is performed.
In the second working state, the inflation electromagnetic valve 52 is turned on, the exhaust electromagnetic valve 51 is turned off, the pressure stabilizing valve 3 is turned on with the air bag part 6, the air bag part 6 is in an inflated state, and the air storage tank 2 outputs stable air pressure to inflate each air bag through the pressure stabilizing valve 3.
In the third operating state, the inflation solenoid valve 52 is closed, the exhaust solenoid valve 51 is opened, the pressure stabilizing valve 3 is blocked from the air bag portion 6, and the air bag portion 6 is communicated with the outside through the exhaust solenoid valve 51 and is deflated.
In the second working state, the high-pressure gas of the gas storage tank 2 flows fast, so that the rapid inflation of the air bag can be realized; the pressure maintaining of the air bag can be realized in the first working state.
In the present embodiment, the operation state of the sequential inflation/deflation module 5 can be switched to inflate or deflate the corresponding airbag. In this embodiment, through the cooperation of air compressor machine 1 and gas holder 2, can guarantee that the gas in the gas holder 2 is in the high pressure state all the time to guarantee when sequential inflation and deflation module 5 is in the second operating condition, the gasbag is washed in fast to the high pressure gas of gas holder 2 output, improves gasbag inflation efficiency, shortens the inflation time.
The safety valve 53 is communicated with the air outlet end of the inflation electromagnetic valve 52, namely, the safety valve 53 is communicated with each air bag connected with the sequential inflation and deflation module 5. The safety valve 53 is opened to release pressure when the pressure of the air inlet end of the inflation electromagnetic valve 52 is larger than a set safety threshold value, so that safety risks caused by overlarge pressure of the air bag are avoided. The safety valve 53 is connected with the inflation solenoid valve 52, so that safety protection of a plurality of airbags connected with the same sequential inflation and deflation module 5 is realized.
In specific implementation, the safety valve 53 may be a valve that opens automatically when a certain pressure is reached, or may be an electromagnetic valve controlled by a control module. In this embodiment, the air outlet end of the inflation electromagnetic valve 52 is provided with a second pressure sensor 57, the control module is respectively connected with the second pressure sensor 57 and the safety valve 53, and the control module 7 is used for controlling the safety valve 53 to be opened when the detection value of the second pressure sensor 57 is greater than a set safety threshold value, so as to ensure that the air bag pressure is in a safety range in real time.
In the present embodiment, the exhaust solenoid valve 51 is connected to the multiple valve block 54 through an exhaust connection pipe 55, and the inflation solenoid valve 52 is connected to the multiple valve block 54 through an inflation connection pipe 56. Namely, an exhaust connection pipe 55 is used for connecting the air inlet end of the exhaust solenoid valve 51 and the exhaust pipe of the multiple-way valve block 54, and an inflation connection pipe 56 is used for connecting the air outlet end of the inflation solenoid valve 52 and the inflation pipe of the multiple-way valve block 54. The safety valve 53 is fixedly connected with the inflation electromagnetic valve 52, and the inflation connecting pipe 56 is detachably connected with the inflation electromagnetic valve 52/the multi-way valve block 54; the exhaust connecting pipe 55 is detachably connected with the exhaust electromagnetic valve 51/the multi-way valve block 54, so that the inflation electromagnetic valve 52 and the exhaust electromagnetic valve 51 are both detachably connected with the multi-way valve block 54, and the sequential inflation and deflation module 5 is convenient to store and transport.
In this embodiment, the inflation connection pipe 56 and the exhaust connection pipe 55 are both hoses, so as to reduce the requirement for the installation environment when the sequential inflation and exhaust module 5 works, and facilitate the application of the high-pressure stored gas external counterpulsation gas circuit system in various environments.
Specifically, in the present embodiment, the inflation connection pipe 56 and the exhaust connection pipe 55 are both detachably connected to the multiple-way valve block 54. One end of the inflation connecting pipe 56 connected with the multi-way valve block 54 is provided with a first annular pipe which surrounds the outer periphery of the inflation connecting pipe 56, and the first annular pipe is communicated with the inner periphery of the inflation connecting pipe 56; the inner wall of inflation channel 542 is provided with a first groove for receiving a first collar. The first collar is integrally formed with the inflation connecting tube 56. In this way, the inflation connecting tube 56 is connected with the multi-way valve block 54 through the engagement of the first ring tube and the first groove. The inflation connecting tube 56 is a hose, and the inflation connecting tube 56 can deform to enable the first annular tube to be inserted into the first groove or to be pulled out of the first groove. When the inflation electromagnetic valve 52 is opened in a state that the first annular pipe is inserted into the first groove, high-pressure gas flows through the inflation connecting pipe 56, and the first annular pipe is communicated with the inflation connecting pipe 56 so as to be supported and expanded by the high-pressure gas, so that the first annular pipe is tightly attached to the first groove, and the inflation connecting pipe 56 and the multi-way valve block 54 are in sealing connection.
Similarly, a second annular pipe encircling the outer periphery of the exhaust connecting pipe 55 is arranged at one end of the exhaust connecting pipe 55 connected with the multi-way valve block 54, and the second annular pipe is communicated with the inner periphery of the exhaust connecting pipe 55; the inner wall of the exhaust passage 543 is provided with a second groove for accommodating a second ring pipe, and the second ring pipe and the exhaust connecting pipe 55 are integrally formed.
The exhaust connection pipe 55 is connected with the multi-way valve block 54 through the clamping of the second ring pipe and the second groove. The exhaust connection pipe 55 is a hose, and the second loop pipe can be inserted into or removed from the second groove by deformation of the exhaust connection pipe 55. When the inflation solenoid valve 52 is opened in a state that the second ring pipe is inserted into the second groove, high-pressure gas flows through the exhaust connection pipe 55, and the second ring pipe is communicated with the exhaust connection pipe 55 so as to be supported and expanded by the high-pressure gas, so that the second ring pipe is closely attached to the second groove, and the sealing connection between the exhaust connection pipe 55 and the multi-way valve block 54 is realized.
In the present embodiment, each balloon portion 6 is provided with a balloon detecting portion 9 for detecting the pressure of the balloon in the balloon portion 6. In specific implementations, the air bag detection unit 9 is a pressure sensor provided in any air bag. In particular, the air bag detecting unit 9 may be integrated with the second pressure sensor 57.
The high-pressure gas storage external counterpulsation gas circuit system further comprises a control module, wherein the control module 7 is used for controlling the sequential gas charging and discharging module 5 to switch between a first working state and a second working state according to the detection value of the gas bag detection part 9 so as to ensure that the required pressure value can be reached and the required time can be kept when the gas bag is inflated. Specifically, in the present embodiment, the control module controls the duration of the sequential inflation/deflation module 5 in the second working state to control the pressure of the airbag, and the post-inflation control module controls the duration of the sequential inflation/deflation module 5 in the first working state to control the dwell time of the airbag. The control module 7 is also used for switching the sequential inflation and deflation module 5 to a third operating state for deflating the balloon portion 6.
The air storage tank 2 is provided with a first pressure sensor 4 for detecting the pressure thereof, and the control module 7 is also used for controlling the air compressor 1 to work according to the pressure signal of the first pressure sensor 4, so that the pressure of the air storage tank 2 is maintained within a set pressure range. That is, when the first pressure sensor 4 detects that the pressure of the air storage tank 2 is lower than the lower limit value of the set pressure range, the control module controls the air compressor 1 to charge air to the air storage tank 2; when the first pressure sensor 4 detects that the pressure of the air storage tank 2 reaches the upper limit value of the set pressure range, the control module controls the air compressor 1 to stop working. In specific implementation, the air compressor 1 can be set to be connected with a power supply through the relay 8, the control module 7 is connected with the relay 8 and controls the on-off of the relay 8, so that the air compressor 1 is controlled to be powered on and powered off, and the control module 7 is used for controlling the working state of the air compressor 1.
In this embodiment, in order to ensure that the air bag of the air bag portion 6 can achieve a set pressure during air blowing when the high-pressure air storage external counterpulsation air circuit system works, the safety and efficiency of external counterpulsation are ensured, and the following steps are adopted for control during air blowing of the air bag.
S3, firstly acquiring an inflation target and a target value. The target value is the inflation time length required by the air bag pressure obtained according to experience when the air bag is inflated. In specific implementation, the association relation between different pressure thresholds corresponding to different air bags and the inflation time length can be preset, so that the inflation time length corresponding to the pressure threshold serving as an inflation target is directly obtained as a target value according to the association relation.
And S4, when the air bag needs to be inflated, switching the sequential inflation and deflation module 5 corresponding to the air bag to a second working state for inflation.
S5, when the continuous inflation time, namely the duration of the second working state, reaches a target value, switching the sequential inflation and deflation module 5 to the first working state, and judging whether the air bag pressure is equal to an inflation target;
if yes, returning to the step S4 when the next inflation is performed; when the pressure of the air bag is higher than the inflation target, updating the target value into a target value-float value, and returning to the step S4 when the air bag is inflated next time; when the air bag pressure is smaller than the inflation target, updating the target value into a target value plus a floating difference value, and returning to the step S4 when the air bag is inflated next time; the float value is greater than or equal to 1 millisecond and less than or equal to 10 milliseconds.
In the external counterpulsation, the air bag is in the circulation process of inflation, pressure maintaining and deflation, so that the pressure during pressure maintaining is closer to a set value, the better the pressure is, and the shorter the inflation time is, the better the counterpulsation effect is. In this embodiment, in the single inflation, the inflation time is specified in advance, and compared with the existing real-time inflation until the airbag pressure reaches the set value, the inflation time is greatly shortened in this embodiment. In the embodiment, the initial value of the target value is an empirical value, and the pressure difference between the air bag pressure realized by inflating according to the empirical value and the set value is not too large; and then in the external counterpulsation process, the next inflation time, namely the target value, is adjusted in real time according to the pressure maintaining pressure in the previous inflation and deflation cycle, so that the pressure maintaining value gradually approaches to the set value along with the execution of the inflation and deflation cycle, and the counterpulsation effect is ensured.
In this embodiment, the inflation duration of the next inflation is adjusted according to the pressure of the inflated airbag, and the inflation duration of each inflation is a preset value, so that the inflation efficiency is greatly improved. In the embodiment, the air storage tank 2 is combined with the air compressor 1 to charge the air bag with high-pressure air, so that the charging speed is extremely high, the charging time is shortened, and the pressure maintaining time is prolonged. In the embodiment, the mode of presetting the inflation duration is beneficial to avoiding the risk of high-pressure over inflation, and ensures that the pressure of the air bag is always in a safe range during high-pressure rapid over inflation. In the embodiment, through the combination of the high-pressure rapid charging and the preset target value, the risk of excessive pressure caused by the excessive inflation of the air bag which is in contrast with the outside of the body and applied to the high-pressure rapid charging is overcome, and the safe application of the high-pressure rapid charging in the outside counterpulsation technology is facilitated.
The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the present utility model, and any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included in the scope of the present utility model.
Claims (5)
1. A high pressure stored-gas external counterpulsation gas circuit system, comprising: the device comprises an air compressor (1), an air storage tank (2), a pressure stabilizing valve (3), a sequential air charging and discharging module (5) and an air bag part (6); the balloon portion (6) comprises at least one balloon;
the air storage tank (2), the pressure stabilizing valve (3), the sequential air charging and discharging module (5) and the air bag part (6) are sequentially communicated to form an air path, and the air compressor (1) is connected with the air storage tank (2) for charging;
the sequential air charging and discharging module (5) comprises an air discharging electromagnetic valve (51), an air charging electromagnetic valve (52), a safety valve (53) and a multi-way valve block (54); an exhaust channel (543), an inflation channel (542) and an air inflation channel (541) which are communicated with each other are arranged in the multi-way valve block (54); the air inlet end of the air exhaust electromagnetic valve (51) is communicated with the air exhaust channel (543), and the air outlet end of the air exhaust electromagnetic valve (51) is connected with the air outlet end; the air inlet end of the air charging electromagnetic valve (52) is communicated with the output end of the pressure stabilizing valve (3), the air outlet end of the air charging electromagnetic valve (52) is communicated with the air charging channels (542), the air bag channels (541) are equal in number and correspond to the air bags one by one, and the air bag channels (541) are communicated with the corresponding air bags;
the safety valve (53) is connected with the inflation electromagnetic valve (52) and is communicated with the air outlet end of the inflation electromagnetic valve (52).
2. The high-pressure gas storage external counterpulsation gas circuit system according to claim 1, wherein the sequential gas charging and discharging module (5) further comprises a gas discharging connecting pipe (55) and a gas charging connecting pipe (56), the gas discharging connecting pipe (55) is used for connecting a gas discharging electromagnetic valve (51) and a multi-way valve block (54), and the gas charging connecting pipe (56) is used for connecting the gas charging electromagnetic valve (52) and the multi-way valve block (54); the safety valve (53) is fixedly connected with the inflation electromagnetic valve (52), and the inflation connecting pipe (56) is detachably connected with the inflation electromagnetic valve (52)/the multi-way valve block (54); the exhaust connecting pipe (55) is detachably connected with the exhaust electromagnetic valve (51)/the multi-way valve block (54).
3. The high pressure stored-gas external counterpulsation gas circuit system according to claim 2, wherein the inflation connection tube (56) and the exhaust connection tube (55) are flexible tubes.
4. The high pressure gas storage external counterpulsation gas circuit system according to claim 3, wherein the inflation connecting pipe (56) and the exhaust connecting pipe (55) are detachably connected with the multi-way valve block (54); one end of the inflation connecting pipe (56) connected with the multi-way valve block (54) is provided with a first annular pipe which surrounds the outer periphery of the inflation connecting pipe (56), and the first annular pipe is communicated with the inner periphery of the inflation connecting pipe (56); a first groove for accommodating the first annular pipe is formed on the inner wall of the inflation channel (542); one end of the exhaust connecting pipe (55) connected with the multi-way valve block (54) is provided with a second annular pipe which surrounds the outer periphery of the exhaust connecting pipe (55), and the second annular pipe is communicated with the inner periphery of the exhaust connecting pipe (55); a second groove for accommodating a second ring pipe is arranged on the inner wall of the exhaust channel (543); the first annular pipe and the inflation connecting pipe (56) are integrally formed, and the second annular pipe and the exhaust connecting pipe (55) are integrally formed.
5. The external counterpulsation gas circuit system according to claim 1, wherein the sequential gas charging and discharging modules (5) and the gas bag portions (6) are equal in number and correspond to each other one by one, and the gas bag channels (541) of each sequential gas charging and discharging module (5) are connected with the gas bags in the corresponding gas bag portion (6).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222204739.7U CN219148410U (en) | 2022-08-22 | 2022-08-22 | High-pressure stored gas external counterpulsation gas circuit system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222204739.7U CN219148410U (en) | 2022-08-22 | 2022-08-22 | High-pressure stored gas external counterpulsation gas circuit system |
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| CN219148410U true CN219148410U (en) | 2023-06-09 |
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| CN202222204739.7U Active CN219148410U (en) | 2022-08-22 | 2022-08-22 | High-pressure stored gas external counterpulsation gas circuit system |
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| CN (1) | CN219148410U (en) |
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