Balloon pressure control system, control method and computer readable storage medium

Abstract

The invention provides a balloon pressure control system and method and a computer readable storage medium. The balloon pressure control system comprises a pressing machine, a balloon, a balloon catheter and a pressure expansion pump. The balloon catheter comprises a medium cavity, an outlet of the medium cavity is located in the balloon, and the pressure expansion pump comprises a microprocessor and a pumping mechanism; the pumping mechanism comprises a liquid storage bag, a peristaltic pump and a first conveying pipe which are sequentially connected, the first conveying pipe is connected with the medium cavity, and a filling medium is stored in the liquid storage bag; the method is executed by a microprocessor and comprises the steps that when the microprocessor receives a pressing signal, a pumping mechanism is controlled to pump a filling medium into a balloon through a first conveying pipe by means of a peristaltic pump according to the initial filling speed and the preset filling time, so that balloon filling is completed; and when the release signal is received, the pumping mechanism is controlled to extract the filling medium in the balloon through the first conveying pipe by the peristaltic pump according to the initial release speed and the preset release time, so that the release of the balloon is completed.

Description

Technical Field

[0001] The present invention relates to the field of medical emergency technology, and in particular to a balloon pressure control system, a control method, and a computer-readable storage medium. Background Art

[0002] Cardiac arrest refers to the sudden cessation of cardiac beating caused by various reasons, which in turn leads to the cessation of blood circulation throughout the body, further causing ischemia, hypoxia and dysfunction of various organs and tissues. If the patient is not rescued in time, he will die quickly. Clinical treatment is divided into two stages: (1) on-site cardiopulmonary resuscitation; (2) organ function recovery after the restoration of spontaneous circulation. Traditional cardiopulmonary resuscitation methods use manual or mechanical external chest compression to help restore the heart's pumping function. However, even if it is implemented in a standardized manner, the success rate of resuscitation is low. Therefore, the industry urgently needs to develop new hemodynamic technologies based on external chest compression that can improve the effectiveness of cardiopulmonary resuscitation. In recent years, studies have confirmed that the use of temporary aortic blood flow occlusion technology during cardiopulmonary resuscitation with external chest compression can improve the blood perfusion level of key organs such as the heart and brain, thereby improving the success rate of resuscitation.

[0003] Existing temporary aortic blood flow occlusion technologies mainly include: Resuscitative Endovascular Balloon Occlusion of the Aorta (REBOA): A balloon catheter is placed in the aorta and the balloon remains inflated throughout cardiopulmonary resuscitation to achieve complete aortic occlusion. REBOA uses lightweight consumables and is simple to operate. However, prolonged occlusion can lead to severe ischemic damage to organs below the occlusion site. Intra-Aortic Balloon Pump (IABP): This utilizes a counterpulsation mechanism that deflates the balloon during compression and inflates it during relaxation, which can partially alleviate distal ischemia. However, most devices use gas as the filling medium and utilize structures such as gas cylinders and gas circuits to store and transport the filling medium. This results in an overall large device size and high usage and maintenance costs, hindering rapid deployment in first-time scenarios such as pre-hospital sites and during transport.

[0004] The equipment currently used for cardiopulmonary resuscitation is large in size and has complex consumables, which in turn leads to high costs. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a balloon pressure control system, a control method and a computer-readable storage medium, which can solve the problem of large device size.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: In a first aspect, an embodiment of the present application provides a control method for a balloon pressure control system, the balloon pressure control system comprising a pressing machine, a balloon, a balloon catheter connected to the balloon, and a pressure expansion pump connected to the pressing machine and the balloon catheter; the balloon catheter comprises a medium cavity, the outlet of the medium cavity is located in the balloon, the pressure expansion pump comprises a microprocessor and a pumping mechanism, the microprocessor is used to receive a pressing signal and a release signal sent by the pressing machine; the pumping mechanism comprises a liquid storage bag, a peristaltic pump, and a first delivery tube connected in sequence, the first delivery tube is connected to the medium cavity, and the liquid storage bag stores a filling medium; the method is executed by the microprocessor, and the method comprises: when the microprocessor receives the pressing signal, the microprocessor controls the pumping mechanism to pump the filling medium into the balloon through the first delivery tube through the peristaltic pump according to the initial filling speed and the preset filling time, so that the balloon is filled; when the release signal is received, the microprocessor controls the pumping mechanism to extract the filling medium in the balloon through the first delivery tube through the peristaltic pump according to the initial discharge speed and the preset discharge time, so that the balloon is discharged.

[0007] Furthermore, the discharge time is negatively correlated with the pressing frequency of the pressing machine, and the initial discharge speed is positively correlated with the pressing frequency of the pressing machine.

[0008] Furthermore, the pressure expansion pump further includes a first sensor connected to the first delivery tube. The method includes: determining whether the balloon is fully filled according to the balloon internal pressure value detected by the first sensor.

[0009] Furthermore, based on the balloon internal pressure value detected by the first sensor, it is determined whether the balloon is fully filled, including: when the rising rate of change of the balloon internal pressure value exceeds a preset threshold, it is determined that the balloon is fully filled; when the rising rate of change of the balloon internal pressure value does not exceed the preset threshold, it is determined that the balloon is not fully filled.

[0010] Furthermore, the balloon catheter also includes a blood chamber independent of the medium chamber, and the outlet of the blood chamber is located at the proximal end outside the balloon; the pumping mechanism also includes a second delivery tube connected to the blood chamber, and the pressure expansion pump also includes a second sensor, and the second sensor is connected to the second delivery tube. The method also includes: judging whether the balloon is fully filled based on the proximal blood pressure value detected by the second sensor.

[0011] Furthermore, based on the proximal blood pressure value detected by the second sensor, it is determined whether the balloon is fully filled, including: when the rising rate of the proximal blood pressure value exceeds the preset blood pressure threshold, it is determined that the balloon is fully filled; when the rising rate of the proximal blood pressure value does not exceed the preset blood pressure threshold, it is determined that the balloon is not fully filled.

[0012] Furthermore, the pumping mechanism also includes a three-way valve, the three-way valve includes a valve core and a first valve port, a second valve port and a third valve port, the first valve port is connected to the first delivery pipe, the second valve port is connected to the second delivery pipe, and the third valve port is connected to the liquid storage bag. The method also includes: before the balloon enters the human body, after the balloon is exhausted, the valve core is controlled to rotate to open the first valve port and the third valve port and close the second valve port.

[0013] Furthermore, the peristaltic pump includes a pump tube and a rotor abutting one side of the pump tube, one end of the pump tube is connected to the liquid storage bag, and the other end of the pump tube is connected to the third valve port. The method also includes: when a pressing signal is received, the rotor is controlled to rotate forward in a preset direction to push the filling medium into the first delivery tube through the third valve port and the first valve port; when a release signal is received, the rotor is controlled to rotate in the opposite direction in a preset direction to suck the filling medium in the first delivery tube back into the liquid storage bag through the first valve port and the third valve port.

[0014] In the second aspect, an embodiment of the present application also provides a balloon pressure control system, and a control method of the balloon pressure control system using the above embodiment includes: a balloon; a balloon catheter connected to the balloon, the balloon catheter including a medium cavity and a blood cavity that are independent of each other, the outlet of the blood cavity is located at the proximal end outside the balloon, and the outlet of the medium cavity is located inside the balloon; a pressing machine; a pressure expansion pump connected to the pressing machine and the balloon catheter, the pressure expansion pump including a microprocessor and a pumping mechanism, the microprocessor is used to receive the pressing signal and release signal sent by the pressing machine; the pumping mechanism includes a liquid storage bag, a peristaltic pump, a first delivery tube and a second delivery tube that are connected in sequence, the first delivery tube is connected to the medium cavity, the second delivery tube is connected to the blood cavity, and the liquid storage bag stores a filling medium; wherein the filling medium is physiological saline.

[0015] Furthermore, the pressure expansion pump also includes: a first sensor connected to the first delivery tube for detecting the pressure value inside the balloon; and a second sensor connected to the second delivery tube for detecting the blood pressure value at the proximal end.

[0016] Furthermore, the first sensor and the second sensor are located in the housing of the pumping mechanism.

[0017] In a third aspect, an embodiment of the present application further provides a computer-readable storage medium storing an executable program, which can execute the control method of the balloon pressure control system of the above embodiment.

[0018] The beneficial effects of the embodiments of the present invention are: First, the embodiment of the present invention sets the part of the pressure expansion pump containing the filling medium as a liquid storage bag, thereby deriving the filling medium as liquid. Compared with the traditional device in which the filling medium is gas and a gas cylinder and gas line are required, the volume of the equipment is reduced and the cost is reduced.

[0019] Secondly, the embodiment of the present invention is configured to inflate the balloon upon receiving a compression signal, thereby increasing the volume of the balloon, so that when the balloon is placed in the human body, the aortic blood flow can be effectively blocked, thereby improving the cardiocerebral perfusion effect. When a release signal is received, the filling medium is extracted from the balloon to achieve the release of the balloon, so that when the balloon is placed in the human body, the blood in the whole body can flow due to the reduction in the volume of the balloon. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments of the present application.

[0021] Figure 1 This is a schematic structural diagram of a balloon pressure control system applied to a human body according to an embodiment of the present application; Figure 2 This is a schematic structural diagram of a balloon catheter of a balloon pressure control system according to one embodiment of the present application; Figure 3 This is a schematic diagram of the main flow of a control method for a balloon pressure control system according to an embodiment of the present application; Figure 4 This is a schematic structural diagram of a pressure expansion pump of a balloon pressure control system according to one embodiment of the present application; Figure 5 This is a flow chart of determining whether the balloon is fully filled in a control method of a balloon pressure control system according to an embodiment of the present application; Figure 6 This is a flow chart of determining whether the balloon is fully filled in a control method of a balloon pressure control system according to another embodiment of the present application; Figure 7 This is a flow chart of determining whether the balloon is fully filled in a control method of a balloon pressure control system according to another embodiment of the present application; Figure 8 This is a schematic structural diagram of a peristaltic pump of a balloon pressure control system according to an embodiment of the present application; Figure 9 This is a schematic diagram showing the connection between a pressure expansion pump, a balloon catheter, and a balloon of a balloon pressure control system according to one embodiment of the present application; Figure 10 This is a schematic structural diagram of a balloon pressure control system according to an embodiment of the present application; Figure 11 for Figure 10 A magnified view of the structure at A in FIG; Figure 12 for Figure 10 A magnified view of the structure at point B in FIG.

[0022] Figure markings: pressing machine 1; balloon 2; balloon catheter 3; medium chamber 31; blood chamber 32; pressure expansion pump 4; pumping mechanism 41; liquid storage bag 411; peristaltic pump 412; pump tube 4121; rotor 4122; first delivery tube 413; second delivery tube 414; first sensor 415; second sensor 416; power supply module 427; three-way valve 42; first valve port 421; second valve port 422; third valve port 423; signal connector 43. DETAILED DESCRIPTION

[0023] In the description of this application, it should be noted that the terms "inner" and "outer" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended solely to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" and the like are used solely for distinction and should not be construed as indicating or implying relative importance.

[0024] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0025] See also Figure 1-6 , an embodiment of the present application provides a control method for a balloon pressure control system, which is applied to a balloon pressure control system, wherein the balloon pressure control system includes a pressing machine 1, a balloon 2, a balloon catheter 3 connected to the balloon 2, and a pressure expansion pump 4 connected to the pressing machine 1 and the balloon catheter 3. The balloon catheter 3 includes a medium cavity 31, the outlet of the medium cavity 31 is located in the balloon 2, and the pressure expansion pump 4 includes a microprocessor and a pumping mechanism 41, and the microprocessor is used to receive the pressing signal and release signal sent by the pressing machine 1. The pumping mechanism 41 includes a liquid storage bag 411, a peristaltic pump 412 and a first delivery tube 413 connected in sequence. The first delivery tube 413 is connected to the medium cavity 31, and the liquid storage bag 411 stores a filling medium.

[0026] The control method is executed by a microprocessor and may include: When receiving the pressing signal, the microprocessor controls the pumping mechanism 41 to pump the filling medium into the balloon 2 through the first delivery tube 413 via the peristaltic pump 412 according to the initial filling speed and the preset filling time, so that the balloon 2 is fully filled.

[0027] Among them, the completion of filling of the balloon 2 generally refers to the volume of the balloon 2 reaching a level that can block the blood vessel, that is, there is an interference fit between the outer wall of the balloon 2 and the inner wall of the blood vessel. The filling speed is the fluid volume of the filling medium injected into the balloon 2 per unit time, which reflects the speed of expansion of the balloon 2. The filling time is the time from the start of injecting the filling medium to the time when the balloon 2 reaches the preset pressure or volume.

[0028] When the release signal is received, the pumping mechanism 41 is controlled to extract the filling medium in the balloon 2 through the first delivery tube 413 by the peristaltic pump 412 according to the initial discharge speed and the preset discharge time, so that the balloon 2 is discharged completely.

[0029] Among them, the completion of balloon 2 deflation generally means that the pressure or volume inside the balloon 2 has dropped below the safety threshold, and the system determines that the balloon 2 is fully retracted and the balloon catheter 3 can be safely withdrawn. The deflation rate is the volume of the filling medium extracted from the balloon 2 per unit time, reflecting the speed of the balloon 2 deflation; the deflation time is the time from the start of balloon 2 deflation to the pressure or volume inside the balloon 2 dropping to the deflation completion standard.

[0030] In the above embodiment, when the microprocessor receives a pressing signal, it controls the pumping mechanism 41 to pump the filling medium into the balloon 2, and the volume of the balloon 2 increases, so that the aortic blood flow can be blocked when the balloon 2 is placed in the human body, thereby guiding the limited blood flow generated by the pressing operation of the pressing machine 1 into important organs such as the coronary arteries of the heart and the brain, thereby improving the effect of cardiocerebral perfusion; and when the microprocessor receives a release signal, it controls the pumping mechanism 41 to extract the filling medium from the balloon 2, so that the volume of the balloon 2 is reduced, thereby restoring the blood flow throughout the body when the balloon 2 is placed in the human body, thereby allowing the blood to flow back to the heart.

[0031] The embodiment of the present application sets the filling medium in the pumping mechanism 41 of the pressure expansion pump 4 as a liquid. Compared with the equipment in the prior art that sets a gas cylinder and an air circuit, the present application only needs to inject it into the liquid storage bag 411 for storage, which reduces the volume of the entire device while further improving its portability and reducing costs. In addition, the embodiment of the present application cooperates with the pressing machine 1 and the pressure expansion pump 4. When a pressing signal is received, that is, when the pressing machine 1 is pressing, the filling of the balloon 2 is controlled, which can block the forward blood flow in the aorta, guide the blood flow to the heart and brain, and improve the effect of cardiocerebral perfusion. When a release signal is received, the balloon 2 is controlled to be discharged, which can restore normal blood flow and avoid affecting the blood supply to other organs.

[0032] In one embodiment, the present application can control the filling of the balloon 2 by receiving a pressure signal and the deflation of the balloon 2 by receiving a release signal in an alternating manner, that is, after controlling the balloon 2 to fill for a first preset time, the balloon 2 is controlled to deflate for a second preset time, and this process is repeated to achieve partial occlusion of the aorta, so as to reduce the problem of ischemic damage to organs below the blocked area.

[0033] The first preset time and the second preset time can be automatically adjusted according to the actual situation of the patient.

[0034] In the above embodiment, the release time is negatively correlated with the compression frequency of the compression machine 1, while the initial release speed is positively correlated with the compression frequency of the compression machine 1. For example, the higher the compression frequency per minute, the shorter the release time and the faster the release speed. The lower the compression frequency per minute, the release time can be appropriately extended and the release speed can be slowed down. The specific release time is dynamically adjusted according to the actual compression frequency, and it is ensured that the balloon 2 can be released completely within the release phase of the compression machine 1.

[0035] like Figure 2 As shown, in one embodiment, the balloon catheter 3 further includes a blood chamber 32 independent of the medium chamber 31 , and the outlet of the blood chamber 32 is located at the proximal end outside the balloon 2 .

[0036] The pumping mechanism 41 further includes a second tube connected to the blood chamber 32 .

[0037] The pressure expansion pump 4 further includes a first sensor 415 and a second sensor 416. The first sensor 415 is connected to the first delivery tube 413 and is used to detect the pressure inside the balloon. The second sensor 416 is connected to the second delivery tube 414 and is used to detect the blood pressure at the proximal end.

[0038] In one embodiment, if Figure 5 As shown, the control method of the balloon pressure control system further includes steps S410 to S440: Step S410: Determine whether the balloon 2 is fully filled based on the balloon internal pressure value detected by the first sensor 415.

[0039] Among them, the completion of filling of the balloon 2 generally means that the volume of the balloon 2 reaches a level that can block the blood vessel, that is, there is an interference fit between the outer wall of the balloon 2 and the inner wall of the blood vessel. The internal pressure value of the balloon 2 is monitored in real time by the first sensor 415 to determine the filling degree of the balloon 2.

[0040] Step S420: Determine whether the rate of increase of the balloon internal pressure value exceeds a preset threshold.

[0041] This means determining whether the balloon pressure is showing a significant upward trend. The preset threshold is a safety threshold determined based on the rate of increase of the balloon pressure. Generally, a rate of change exceeding the preset threshold indicates a sudden increase in the balloon pressure rate compared to normal.

[0042] Step S430: When the rate of increase of the balloon internal pressure value exceeds a preset threshold, it is determined that the balloon 2 is completely filled.

[0043] Step S440: When the rising rate of the balloon internal pressure value does not exceed the preset threshold, it is determined that the balloon 2 is not fully filled.

[0044] In another embodiment, Figure 6 As shown, the control method of the balloon pressure control system further includes steps S510 to S540: Step S510: Determine whether the balloon 2 is fully filled based on the proximal blood pressure value detected by the second sensor 416.

[0045] Step S520: Determine whether the rate of increase of the proximal blood pressure value exceeds a preset blood pressure threshold.

[0046] In the above step S520, the preset blood pressure threshold is a pre-set blood pressure critical value in the blood vessel at the proximal end of the balloon 2, which is used to determine whether the proximal blood pressure value is within a normal range.

[0047] Step S530: When the rate of increase of the proximal blood pressure value exceeds a preset blood pressure threshold, it is determined that the balloon 2 is fully filled.

[0048] Step S540: When the rate of increase of the proximal blood pressure value does not exceed the preset blood pressure threshold, it is determined that the balloon 2 is not fully inflated.

[0049] In the embodiment of the present application, the second sensor 416 monitors the proximal blood pressure value, and the closed-loop feedback system can automatically adjust the inflation or deflation of the balloon 2 to prevent the problem of blood vessel rupture or distal ischemia caused by excessive inflation of the balloon 2.

[0050] In other embodiments, Figure 7 As shown, the control method of the balloon pressure control system further includes steps S610 to S640: Step S610: Determine whether the balloon 2 is fully filled based on the relationship between the actual filling volume and the preset target filling volume.

[0051] The preset target filling volume can be represented by the amount of filling medium required when the volume of the balloon 2 reaches the maximum safety threshold. In one embodiment, the total filling volume is 25 ml.

[0052] In an embodiment, the pumping mechanism 41 is provided with a flow meter connected between the peristaltic pump 412 and the passage of the balloon 2, which detects pulse signals in real time and feeds back to the microprocessor, which calculates the actual inflation volume according to the pulse signals.

[0053] Step S620: Determine whether the actual inflation volume reaches the target inflation volume.

[0054] Step S630: If the actual inflation volume reaches the target inflation volume, it is determined that the balloon 2 is inflated.

[0055] Step S640: If the actual inflation volume does not reach the target inflation volume, it is determined that the balloon 2 is not inflated.

[0056] In an embodiment, as shown in Figure 4 The pumping mechanism 41 further includes a three-way valve 42, which includes a valve core and first, second and third valve ports 421, 422 and 423, the first valve port 421 is connected to the first delivery pipe 413, the second valve port 422 is connected to the second delivery pipe 414, and the third valve port 423 is connected to the liquid storage bag 411. The control method of the balloon pressure control system provided in the embodiment further includes: Before the balloon 2 enters the human body, the valve core is controlled to rotate to open the first valve port 421 and the third valve port 423, and close the second valve port 422 after the balloon 2 is exhausted.

[0057] The embodiment provides the three-way valve 42 in the pumping mechanism 41, which adjusts the flow passage of the inflation medium stored in the liquid storage bag 411 by controlling the working state of the three-way valve 42, so as to accurately increase or decrease the volume of the balloon 2 by the action of the inflation medium in the emergency process.

[0058] Referring to Figure 8 In an embodiment, the peristaltic pump 412 includes a pump pipe 4121 and a rotor 4122 abutting one side of the pump pipe 4121, one end of the pump pipe 4121 is connected to the liquid storage bag 411, the other end of the pump pipe 4121 is connected to the third valve port 423, and the rotor 4122 is used to extrude the pump pipe 4121 and rotate the moving direction of the extrusion point in a forward direction by forward rotation, so as to make the liquid in the pump pipe 4121 flow in a forward direction, and rotate the moving direction of the extrusion point in a reverse direction by reverse rotation, so as to make the liquid in the pump pipe 4121 flow in a reverse direction.

[0059] In an embodiment, the control method of the balloon pressure control system further includes: When receiving the pressing signal, the rotor 4122 is controlled to rotate forward in a preset direction to push the filling medium into the first delivery tube 413 through the third valve port 423 and the first valve port 421, and then deliver the filling medium into the balloon 2 to fill the balloon 2.

[0060] When the release signal is received, the rotor 4122 is controlled to rotate in the reverse direction beyond the preset direction to suck the filling medium back into the liquid storage bag 411 through the first valve port 421 and the third valve port 423, thereby extracting the filling medium in the balloon 2 to achieve the release of the balloon 2.

[0061] The preset direction is the direction in which the filling medium flows toward the balloon.

[0062] Specifically, in one embodiment, when the pressing machine 1 is pressed and started, the pumping mechanism 41 performs the filling action of the balloon 2 through signal transmission between the pumping mechanism 41 and the pressing machine 1: When the microprocessor receives the pressing signal, it controls the valve core of the three-way valve 42 to rotate to open the first valve port 421 and the third valve port 423, and close the second valve port 422, so that the passage of the three-way valve 42 toward the second delivery tube 414 is closed, connecting the passage between the first delivery tube 413 and the liquid storage bag 411, and controlling the rotor 4122 to rotate clockwise to push the filling medium into the first delivery tube 413 through the third valve port 423 and the first valve port 421, and then deliver the filling medium to the balloon 2, so that the balloon 2 is filled.

[0063] When the pressing machine 1 is pressed, lifted and released, the pumping mechanism 41 releases the balloon 2 through signal transmission between the pumping mechanism 41 and the pressing machine 1: When the microprocessor receives the release signal, the first valve port 421 and the third valve port 423 of the three-way valve 42 are kept open and the second valve port 422 is closed, so that the passage of the three-way valve 42 toward the second delivery tube 414 is still closed, connecting the passage between the first delivery tube 413 and the liquid storage bag 411, and controlling the rotor 4122 to rotate counterclockwise so that the filling medium in the balloon 2 is reversely rotated by the rotor 4122 of the peristaltic pump 412 and sucked back into the liquid storage bag 411 through the first valve port 421 and the third valve port 423 to complete the discharge of the balloon 2.

[0064] The control method of the balloon pressure control system provided in the embodiment of the present application realizes the filling of the balloon 2 when the pressing machine 1 is pressed and started, and the discharge action is synchronized when the pressing machine 1 is pressed and released. Through the communication and coordination between the pressing machine 1, the pumping mechanism 41 and the balloon 2, the signals of the microprocessor and the first sensor 415 and the second sensor 416 are synchronized, which can improve the coordination accuracy. During the operation of the pressing machine 1, the blood supply distribution is controlled to make the blood reasonably distributed, improve the cardiocerebral perfusion effect, and thus improve the work efficiency of first aid.

[0065] Combine Figure 4 、 Figure 8 , see Figure 9-12 An embodiment of the present application also provides a balloon pressure control system, which uses the control method of the balloon pressure control system provided by the above embodiment, including a balloon 2, a balloon catheter 3, a pressing machine 1 and a pressure expansion pump 4.

[0066] The balloon catheter 3 is connected to the balloon 2 and includes a medium cavity 31 and a blood cavity 32 which are independent of each other. The outlet of the blood cavity 32 is located at the proximal end outside the balloon 2 , and the outlet of the medium cavity 31 is located inside the balloon 2 .

[0067] The pressure expansion pump 4 is connected to the pressing machine 1 and the balloon catheter 3. The pressure expansion pump 4 includes a microprocessor and a pumping mechanism 41. The microprocessor is used to receive signals sent by the pressing machine 1, wherein the signals include pressing signals and release signals.

[0068] The pumping mechanism 41 includes a liquid storage bag 411, a peristaltic pump 412, a first delivery tube 413 and a second delivery tube 414 connected in sequence. The first delivery tube 413 is connected to the medium cavity 31, and the second delivery tube 414 is connected to the blood cavity 32. The liquid storage bag 411 stores the filling medium.

[0069] Among them, the filling medium is physiological saline. The embodiment of the present application sets the filling medium used by the balloon 2 to be liquid, so that the filling medium is contained in the liquid storage bag 411. Compared with the prior art where the filling medium is gas, an additional gas cylinder gas circuit system structure needs to be set up. The embodiment of the present application can reduce the volume of the balloon pressure control system, is convenient to carry, simple to operate, and can be used in multiple scenarios, while also reducing costs.

[0070] In one embodiment, the total liquid filling volume of the balloon 2 may be 30 ml, which may be determined based on the total liquid filling volume of the balloon 2 actually used.

[0071] In one embodiment, the pumping mechanism 41 further includes a three-way valve 42 and a peristaltic pump 412 .

[0072] The three-way valve 42 includes a valve core and a first valve port 421, a second valve port 422 and a third valve port 423. The first valve port 421 is connected to the first delivery pipe 413, and the second valve port 422 is connected to the second delivery pipe 414. The first valve port 421, the second valve port 422 and the third valve port 423 are opened or closed by rotating the valve core to the target position.

[0073] The peristaltic pump 412 includes a pump tube 4121 and a rotor 4122 abutting against one side of the pump tube 4121. One end of the pump tube 4121 is connected to the liquid storage bag 411, and the other end of the pump tube 4121 is connected to the third valve port 423, so that the third valve port 423 and the liquid storage bag 411 are connected. The rotor 4122 is rotated to squeeze the filling medium in the pump tube 4121.

[0074] In one embodiment, the compression machine 1 may be a CPR compression machine or a manual compression detector, such as a CPR sensor or a wristband, which can accurately detect the start time of manual compression and release.

[0075] In one embodiment, the housing of the pressure expansion pump 4 is provided with a signal connector 43 connected to the microprocessor, the signal connector 43 is connected to the first sensor 415 and the second sensor 416 and the peristaltic pump 412 through internal connecting lines, and the signal connector 43 is connected to the pressing machine 1 through external connecting lines for transmitting signals to the microprocessor.

[0076] In another embodiment, a wireless transmission module connected to a microprocessor is provided in the shell of the pressure expansion pump 4, including a WIFI module or a Bluetooth module, etc. The wireless transmission module of the pressure expansion pump 4 is wirelessly connected to the wireless transmission module in the pressing machine 1 for transmitting the signal sent by the pressing machine 1.

[0077] In one embodiment, the pressure expansion pump 4 further includes a power supply module 427 , which is connected to the microprocessor for providing electrical energy.

[0078] In one embodiment, the power supply module 427 may be a battery.

[0079] In one embodiment, the balloon 2 is made of a polymer material, such as polyurethane or silicone rubber, which has good flexibility and pressure resistance. When used in the human body, it is placed in an appropriate position of the patient's aorta through the balloon catheter 3, such as the descending aorta, and can effectively block the forward blood flow in the aorta, thereby improving the accuracy of blood flow blocking.

[0080] In another embodiment, the balloon 2 is made of polyurethane material, which has good flexibility and pressure resistance. The balloon 2 is placed in the descending aorta distal to the patient's left subclavian artery through the balloon catheter 3, which can achieve more accurate blood flow blocking.

[0081] In one embodiment, the pressure expansion pump 4 further includes a first sensor 415 and a second sensor 416 .

[0082] The first sensor 415 is connected to the first delivery tube 413 and is used to detect the pressure inside the balloon. The second sensor 416 is connected to the second delivery tube 414 and is used to detect the blood pressure at the proximal end.

[0083] In one embodiment, the first sensor 415 and the second sensor 416 are located within the housing of the pumping mechanism 41 .

[0084] In another embodiment, the first sensor 415 and the second sensor 416 may be located outside the housing of the pumping mechanism 41 .

[0085] An embodiment of the present application further provides a computer-readable storage medium storing an executable program, which can execute the control method of the balloon pressure control system provided in the above embodiment.

[0086] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0087] It should be noted that, unless there is any conflict, the features in the embodiments of this application can be combined with each other.

[0088] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A method for controlling a balloon pressure control system, characterized in that: The balloon pressure control system includes a pressing machine, a balloon, a balloon catheter connected to the balloon, and a pressure expansion pump connected to the pressing machine and the balloon catheter; the balloon catheter includes a medium cavity, the outlet of the medium cavity is located in the balloon, and the pressure expansion pump includes a microprocessor and a pumping mechanism, the microprocessor is used to receive the pressing signal and the release signal sent by the pressing machine; the pumping mechanism includes a liquid storage bag, a peristaltic pump, and a first delivery tube connected in sequence, the first delivery tube is connected to the medium cavity, and the liquid storage bag stores the filling medium; The method is executed by the microprocessor, and the method includes: When receiving the pressing signal, the microprocessor controls the pumping mechanism to pump the filling medium into the balloon through the first delivery tube by the peristaltic pump according to the initial filling speed and the preset filling time, so as to complete the filling of the balloon; When the release signal is received, the pumping mechanism is controlled to extract the filling medium in the balloon through the first delivery tube by the peristaltic pump according to the initial discharge speed and the preset discharge time, so that the balloon is discharged.

2. The control method of the balloon pressure control system according to claim 1, characterized in that: The discharge time is negatively correlated with the pressing frequency of the pressing machine, and the initial discharge speed is positively correlated with the pressing frequency of the pressing machine.

3. The control method of the balloon pressure control system according to claim 1, characterized in that: The pressure expansion pump further includes a first sensor connected to the first delivery tube, and the method includes: Whether the balloon is fully filled is determined based on the balloon internal pressure value detected by the first sensor.

4. The control method of the balloon pressure control system according to claim 3, characterized in that: The step of determining whether the balloon is fully filled according to the balloon internal pressure value detected by the first sensor includes: When the rate of increase of the balloon internal pressure value exceeds a preset threshold, it is determined that the balloon is fully filled; When the rising rate of the balloon internal pressure value does not exceed a preset threshold, it is determined that the balloon is not fully filled.

5. The control method of the balloon pressure control system according to claim 1, characterized in that: The balloon catheter further includes a blood chamber independent of the medium chamber, wherein an outlet of the blood chamber is located at a proximal end outside the balloon; the pumping mechanism further includes a second delivery tube connected to the blood chamber; the pressure expansion pump further includes a second sensor connected to the second delivery tube; and the method further includes: Whether the balloon is fully inflated is determined based on the proximal blood pressure value detected by the second sensor.

6. The control method of the balloon pressure control system according to claim 5, characterized in that: The step of determining whether the balloon is fully filled based on the proximal blood pressure value detected by the second sensor includes: When the rate of increase of the proximal blood pressure value exceeds a preset blood pressure threshold, it is determined that the balloon is fully filled; When the rate of increase of the proximal blood pressure value does not exceed a preset blood pressure threshold, it is determined that the balloon is not fully inflated.

7. The control method of the balloon pressure control system according to claim 5, characterized in that: The pumping mechanism further includes a three-way valve, the three-way valve including a valve core and a first valve port, a second valve port, and a third valve port, the first valve port being connected to the first delivery pipe, the second valve port being connected to the second delivery pipe, and the third valve port being connected to the liquid storage bag, the method further including: Before the balloon enters the human body, after the balloon is exhausted, the valve core is controlled to rotate to open the first valve port and the third valve port and close the second valve port.

8. The control method of the balloon pressure control system according to claim 7, characterized in that: The peristaltic pump includes a pump tube and a rotor abutting against one side of the pump tube, one end of the pump tube is connected to the liquid storage bag, and the other end of the pump tube is connected to the third valve port. The method further includes: When the pressing signal is received, the rotor is controlled to rotate forward in a preset direction to push the filling medium into the first delivery pipe through the third valve port and the first valve port; When the release signal is received, the rotor is controlled to rotate in the reverse direction in a preset direction, so as to suck the filling medium in the first delivery tube back into the liquid storage bag through the first valve port and the third valve port.

9. A balloon pressure control system, using the control method of the balloon pressure control system according to any one of claims 1 to 8, characterized in that: include: balloon; A balloon catheter is connected to the balloon, the balloon catheter comprising a medium cavity and a blood cavity which are independent of each other, the outlet of the blood cavity is located at the proximal end outside the balloon, and the outlet of the medium cavity is located inside the balloon; Pressing machine; A pressure expansion pump connected to the compression machine and the balloon catheter, the pressure expansion pump comprising a microprocessor and a pumping mechanism, the microprocessor being configured to receive compression signals and release signals sent by the compression machine; The pumping mechanism includes a liquid storage bag, a peristaltic pump, a first delivery tube and a second delivery tube connected in sequence, the first delivery tube is connected to the medium cavity, the second delivery tube is connected to the blood cavity, and the liquid storage bag stores a filling medium; Wherein, the filling medium is physiological saline.

10. The balloon pressure control system according to claim 9, characterized in that: The pressure expansion pump also includes: a first sensor connected to the first delivery tube, for detecting the internal pressure of the balloon; The second sensor is connected to the second delivery tube and is used to detect the proximal blood pressure value.

11. The balloon pressure control system according to claim 10, characterized in that: The first sensor and the second sensor are located within a housing of the pumping mechanism.

12. A computer-readable storage medium, characterized in that The computer-readable storage medium stores an executable program, and the executable program executes the control method of the balloon pressure control system according to any one of claims 1 to 8.

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