CN115779258A - IABP balloon adjusting method and device - Google Patents

Abstract

The embodiment of the invention provides an IABP balloon adjusting method and device, relating to the technical field of medical instruments, wherein the method comprises the following steps: before the current counterpulsation trigger, obtaining a first pressure of the balloon before the last counterpulsation trigger and a second pressure of the balloon after the last counterpulsation trigger; calculating the actual volume of the balloon after the triggering of the last counterpulsation based on the first pressure and the second pressure; after the current counterpulsation trigger starts, calculating a volume difference between the actual volume and a preset volume, and updating the motor movement step number after the last counterpulsation trigger based on the volume difference, wherein the preset volume is as follows: a preset volume that the balloon is expected to reach during counterpulsation; and operating the motor according to the updated movement steps to realize volume adjustment of the saccule. The scheme provided by the embodiment is applied to balloon adjustment, so that the expected effect can be more accurately achieved.

Description

A balloon adjustment method and device for IABP

technical field

The invention relates to the technical field of medical devices, in particular to an IABP balloon adjustment method and device.

Background technique

IABP (Intra-Aortic Balloon Pump) increases the blood perfusion of coronary artery and systemic circulation, reduces the workload of myocardium, and provides cardiac support for patients with insufficient myocardial oxygen supply. IABP can increase diastolic blood pressure, increase coronary perfusion, increase myocardial oxygen supply, reduce left ventricular afterload, reduce cardiac work, and reduce myocardial hypoxia.

The main structure of the IABP is shown in Figure 1. The IABP mainly includes a control device and a balloon. In actual use, the balloon is placed in the patient's descending aorta, the control device is placed outside the patient's body, and the control device passes through the balloon inflation tube. The road is connected to the balloon. The control device inflates and deflates the balloon by detecting the diastole and contraction of the heart, so as to increase the cardiac output and improve the perfusion of the coronary arteries. The control device includes a bellows and a motor. The air intake motor and the bellows are respectively connected with the air intake pipeline and the balloon inflation pipeline. Before starting counterpulsation, the gas enters the bellows through the intake pipeline, and the motor drives the bellows to shrink and stretch. When the bellows shrinks, the gas is discharged into the balloon through the balloon inflation pipeline; Back to the inside of the air box, by adjusting the movement of the motor to make the balloon reach the desired volume, so as to achieve counterpulsation.

However, affected by internal environmental factors such as the arterial blood pressure of the human body, there is a difference between the actual volume of the balloon and the expected volume of the balloon during counterpulsation, which makes it difficult to achieve the expected effect more accurately.

Contents of the invention

The purpose of the embodiments of the present invention is to provide an IABP balloon adjustment method and device, so as to more accurately achieve the desired effect. The specific technical scheme is as follows:

In the first aspect, an embodiment of the present invention provides a method for regulating a balloon of IABP, the method comprising:

Before the current counterpulsation is triggered, the first pressure of the balloon before the previous counterpulsation is triggered, and the second pressure of the balloon after the last counterpulsation is triggered;

Based on the first pressure and the second pressure, calculate the actual volume of the balloon after the last counterpulsation trigger;

After the current counterpulsation trigger starts, calculate the volume difference between the actual volume and the preset volume, and based on the volume difference, update the number of motor movement steps after the last counterpulsation trigger, wherein the preset The volume is: the pre-set volume expected to be achieved by the balloon during counterpulsation;

The motor is operated according to the updated number of motion steps to realize volume adjustment of the balloon.

In an embodiment of the present invention, before calculating the actual volume of the balloon after the last counterpulsation trigger based on the first pressure and the second pressure, it further includes:

Based on the initial volume of the bellows and the number of motor movement steps after the last counterpulse trigger, calculate the remaining volume of the bellows after the last counterpulse trigger;

The calculation of the actual volume of the balloon after the last counterpulsation is triggered based on the first pressure and the second pressure includes:

Based on the initial volume of the bellows, the remaining volume, the first pressure and the second pressure, the actual volume of the balloon after the last counterpulsation is triggered is calculated.

In an embodiment of the present invention, the calculation of the actual volume of the balloon after the previous counterpulsation is triggered based on the initial volume of the bellows, the remaining volume, the first pressure and the second pressure includes:

Calculate the actual volume of the balloon after the last counterpulsation is triggered according to the following expression:

Among them, V _r represents the actual volume of the balloon after the last counterpulsation was triggered, p ₁ represents the first pressure, V _s represents the initial volume of the bellows, V _v represents the volume of the incompressible space in the area connected by the balloon inflation pipeline, p ₂ represents the second pressure, and V _p represents the remaining volume of the bellows after the last counterpulsation was triggered.

In an embodiment of the present invention, based on the volume difference, the number of motor movement steps after the last counterpulsation trigger is updated, including:

Calculate the product of the volume difference and the number of movement steps per unit volume, and use the calculated product as the difference in the number of movement steps, wherein the number of movement steps per unit volume is: the number of movement steps of the motor that makes the volume change of the balloon equal to the unit volume ;

Based on the difference in the number of motion steps, the number of motor motion steps after the last counterpulsation trigger is updated.

In an embodiment of the present invention, based on the difference in the number of movement steps, the number of movement steps of the motor after the last counterpulsation trigger is updated, including:

If the actual volume is greater than the preset volume, calculate the difference between the number of motor movement steps after the last counterpulsation trigger and the difference between the number of movement steps, and determine the calculated difference as the updated number of movement steps;

If the actual volume is smaller than the preset volume, calculate the sum of the motor movement steps after the last counterpulsation trigger and the difference in the movement steps, and determine the calculated sum as the updated movement steps.

In the second aspect, an embodiment of the present invention provides an IABP balloon adjustment device, the device comprising:

The pressure acquisition module is used to obtain the first pressure of the balloon before the last counterpulsation trigger and the second pressure of the balloon after the last counterpulsation trigger before the current counterpulsation trigger;

The first volume calculation module is configured to calculate the actual volume of the balloon after the last counterpulsation is triggered based on the first pressure and the second pressure;

The step number updating module is used to calculate the volume difference between the actual volume and the preset volume after the current counterpulsation trigger starts, and update the motor movement steps after the last counterpulsation trigger based on the volume difference , wherein the preset volume is: a preset volume that is expected to be achieved by the balloon during counterpulsation;

The volume adjustment module is used to operate the motor according to the updated number of motion steps, so as to adjust the volume of the balloon.

In one embodiment of the present invention, the above-mentioned device also includes:

The second volume calculation module is configured to, before the first volume calculation module calculates the actual volume of the balloon after the last counterpulse is triggered based on the first pressure and the second pressure, based on the initial volume of the bellows and the previous counterpulse The number of motor movement steps after the pulse is triggered, and the remaining volume of the bellows after the last counterpulse is triggered;

The first volume calculation module is specifically configured to calculate the actual volume of the balloon after the last counterpulsation is triggered based on the initial volume, the remaining volume, the first pressure and the second pressure of the bellows.

In an embodiment of the present invention, the above-mentioned first volume calculation module is specifically used to calculate the actual volume of the balloon after the last counterpulsation trigger according to the following expression:

Among them, V _r represents the actual volume of the balloon after the last counterpulsation was triggered, p ₁ represents the first pressure, V _s represents the initial volume of the bellows, V _v represents the volume of the incompressible space in the area connected by the balloon inflation pipeline, p ₂ represents the second pressure, and V _p represents the remaining volume of the bellows after the last counterpulsation was triggered.

In one embodiment of the present invention, the above-mentioned steps update module includes:

The steps difference calculation sub-module is used to calculate the product of the volume difference and the number of movement steps per unit volume, and use the calculated product as the difference of movement steps, wherein the number of movement steps per unit volume is: to change the volume of the balloon The amount is the number of motor movement steps per unit volume;

The step count updating sub-module is configured to update the motor motion step count after the previous counterpulsation trigger based on the motion step count difference.

In one embodiment of the present invention, the above-mentioned steps update submodule is specifically used to calculate the difference between the motor movement steps after the last counterpulsation trigger and the movement step difference if the actual volume is greater than the preset volume , determine the calculated difference as the updated number of motion steps; if the actual volume is smaller than the preset volume, calculate the sum of the number of motor motion steps after the last counterpulsation trigger and the difference between the number of motion steps, and set The calculated sum value is determined as the updated number of motion steps.

In a third aspect, an embodiment of the present invention provides an electronic device, including a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory complete communication with each other through the communication bus;

memory for storing computer programs;

The processor is configured to implement the method steps described in the first aspect above when executing the program stored in the memory.

In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor, the method steps described in the above-mentioned first aspect are implemented.

An embodiment of the present invention also provides a computer program product containing instructions, which, when run on a computer, causes the computer to execute the method steps described in the first aspect above.

It can be seen from the above that when the solution provided by the embodiment of the present invention is applied, since the actual volume of the balloon after the last counterpulsation trigger can accurately reflect the inflated volume of the balloon under the current motor’s existing movement steps, so , the volume difference between the actual volume and the preset volume can accurately reflect the difference between the current inflated volume of the balloon and the expected inflated volume, so that based on the above volume difference, the motor movement steps after the last counterpulsation trigger can be accurately calculated The update is performed, and then the volume of the balloon is adjusted based on the updated number of motion steps, so that the inflated volume of the balloon is as close as possible to the preset volume, so as to more accurately achieve the desired effect.

Moreover, since the first pressure reflects the pressure situation of the balloon in the uninflated state before the last counterpulsation trigger, the above-mentioned second pressure reflects the pressure situation of the balloon in the inflated state after the last counterpulsation trigger, and because the reaction The pressure of the balloon before and after the triggering of the counterpulsation can reflect the actual volume of the balloon after the triggering of the counterpulsation. Therefore, based on the first pressure and the second pressure, the actual volume of the balloon after the last counterpulsation is triggered can be accurately calculated, and then accurately adjusted. Balloon volume, further accurately achieve the desired effect.

In addition, before and after each counterpulse is triggered, the number of motor movement steps after the previous counterpulse trigger is updated, and the volume of the balloon is adjusted according to the updated movement steps, so that each counterpulse can accurately adjust the ball. Capsule volume, better to achieve the desired effect.

Of course, implementing any product or method of the present invention does not necessarily need to achieve all the above-mentioned advantages at the same time.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present application, and those skilled in the art can also obtain other embodiments according to these drawings.

Fig. 1 is a structural schematic diagram of an IABP;

Fig. 2 is a schematic flow chart of the first IABP balloon adjustment method provided by the embodiment of the present invention;

Fig. 3 is a schematic flowchart of the second IABP balloon adjustment method provided by the embodiment of the present invention;

Fig. 4 is a schematic structural diagram of an IABP balloon adjustment device provided by an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of an electronic device provided by an embodiment of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art based on the present application belong to the protection scope of the present invention.

First, the embodiments of the present invention are described in detail, and the application scenarios and execution subjects of the embodiments of the present invention are specifically introduced.

The application scenario of the embodiment of the present invention is: an application scenario where the IABP treats patients.

The execution subject of the embodiment of the present invention is: the control device of the IABP. The above-mentioned control device is used to collect the physiological parameter data of the patient and the operating parameter data of the IABP, and to inflate and deflate the balloon.

The method for regulating the balloon of IABP provided by the embodiment of the present invention will be described in detail below.

Referring to FIG. 2 , FIG. 2 is a schematic flowchart of the first IABP balloon adjustment method provided by the embodiment of the present invention. The above method includes the following steps S201-S204.

Step S201: Before the current counterpulsation is triggered, obtain the first pressure of the balloon before the last counterpulsation is triggered, and the second pressure of the balloon after the last counterpulsation is triggered.

In the process of treating patients with IABP, the treatment is based on multiple counterpulsation cycles, and the previous counterpulsation can be understood as the counterpulsation action performed in the previous counterpulsation cycle of the current counterpulsation cycle.

Since each counterpulsation is triggered, the balloon needs to be inflated, and at the end of each counterpulsation, the balloon gas is sucked back into the bellows. Therefore, the balloon is in an uninflated state before each counterpulsation is triggered. The balloon is inflated after the counterpulsation is triggered. Based on this, the above-mentioned first pressure reflects the pressure situation of the balloon in the uninflated state before the last counterpulsation trigger, and the above-mentioned second pressure reflects the pressure situation of the balloon in the inflated state after the last counterpulsation trigger.

Both the above-mentioned first pressure and second pressure can be measured by a pressure sensor. Specifically, the pressure sensor can measure the pressure of the balloon before and after each counterpulsation trigger, and transmit the measured pressure value to the control device, so that the control device can store the above-mentioned pressure value locally. The pressure of the balloon before and after the last counterpulse trigger is read from the stored pressure value.

Step S202: Based on the first pressure and the second pressure, calculate the actual volume of the balloon after the last counterpulsation trigger.

Because the first pressure reflects the pressure situation of the balloon in the uninflated state before the last counterpulsation trigger, the above-mentioned second pressure reflects the pressure situation of the balloon in the inflated state after the last counterpulsation trigger, and because the counterpulse trigger The pressures of the front and rear balloons can reflect the actual volume of the balloon after the counterpulsation is triggered, therefore, the actual volume of the balloon after the last counterpulsation is triggered can be calculated based on the first pressure and the second pressure.

In one embodiment, the pressure ratio between the first pressure and the second pressure can be calculated, and the calculated pressure ratio can be converted into the balloon volume according to the preset correspondence between the pressure ratio and the balloon volume, as The actual volume of the balloon after the last counterpulse trigger.

The above corresponding relationship may be extracted from historical counterpulsation data in advance. In the above correspondence relationship, the pressure ratio and the balloon volume corresponding to the pressure ratio are recorded. According to the above correspondence relationship, the calculated pressure ratio can be converted into the corresponding balloon volume.

For other implementation manners of calculating the actual volume, reference may be made to the subsequent embodiment corresponding to FIG. 3 , which will not be described in detail here.

Step S203: After the current counterpulsation trigger starts, calculate the volume difference between the actual volume and the preset volume, and update the number of motor movement steps after the last counterpulsation trigger based on the volume difference.

The above-mentioned preset volume is: a preset volume expected to be achieved by the balloon during counterpulsation. The aforementioned preset volume may be pre-set by medical personnel based on the current condition of the patient. When performing counterpulsation, if the balloon can reach the preset volume, it means that the best counterpulsation effect has been achieved.

The actual volume above is the actual volume of the balloon after the last counterpulsation was triggered, and represents the actual volume of the balloon driven by the current motor.

After the preset volume of the balloon is determined, the preset volume can be converted into the number of motor steps. When counterpulsation is started, the motor drives the bellows to stretch according to the above-mentioned number of motion steps, so that the inflation volume of the balloon can reach the above-mentioned Default volume. However, due to the influence of the pressure environment in the human body, when the motor moves according to the above-mentioned movement steps, the actual inflated volume of the balloon may not reach or exceed the above-mentioned preset volume, and the volume difference between the actual volume and the preset volume can be Accurately reflect the difference between the current inflated volume of the balloon and the expected inflated volume, so the volume of the balloon can be adjusted accurately based on the above-mentioned volume difference, so that the inflated volume of the balloon is as close as possible to the preset volume, thereby optimizing the counterpulsation effect .

When updating the number of motion steps, in one embodiment, the product of the volume difference and the number of motion steps per unit volume can be calculated, and the calculated product can be used as the difference in the number of motion steps. Based on the above-mentioned difference in the number of motion steps, the above The number of motor movement steps after the counterpulsation is triggered is updated.

The above-mentioned number of movement steps per unit volume is: the number of movement steps of the motor to make the volume change of the balloon equal to the unit volume. The above-mentioned movement steps per unit volume may be obtained by pre-measurement. Since the number of movement steps per unit volume represents the number of motor movement steps that cause the balloon volume to change as a unit volume, the product of the volume difference and the number of movement steps per unit volume can accurately represent the number of motor movement steps after the last counterpulsation trigger and The difference in the number of motion steps between the number of motion steps corresponding to the preset volume, so that the number of motion steps of the motor can be accurately updated based on the above-mentioned difference in the number of motion steps.

When updating the number of motor movement steps after the last counterpulsation trigger, if the actual volume is greater than the preset volume, it means that the actual inflated volume of the balloon is larger than the preset volume, and the number of motor movement steps needs to be reduced. In this case Next, the difference between the number of motion steps of the motor after the last counterpulse trigger and the difference between the number of motion steps can be calculated, and the calculated difference is determined as the adjusted number of motion steps.

If the actual volume is smaller than the preset volume, it means that the actual inflated volume of the balloon is smaller than the preset volume, and the number of motor movement steps needs to be increased. In this case, the number of motor movement steps after the last counterpulsation trigger can be calculated and the difference between the number of motion steps, and the calculated sum value is determined as the adjusted number of motion steps.

Because the number of motor movement steps is adjusted according to the size relationship between the actual volume and the preset volume, the adjustment direction is consistent with the direction of the size difference between the actual volume and the preset volume, thereby accurately adjusting the number of movement steps of the motor.

Step S204: Operate the motor according to the updated number of motion steps, so as to adjust the volume of the balloon.

Since the number of motor movement steps is updated based on the volume difference, the updated number of movement steps eliminates the difference between the actual volume of the balloon and the preset volume as much as possible, so that the operation of the motor based on the updated number of movement steps can make the adjustment The volume of the rear balloon is as close as possible to the preset volume, thereby optimizing the counterpulsation effect.

It can be seen from the above that since the actual volume of the balloon after the last counterpulsation trigger can accurately reflect the inflated volume that the balloon can achieve under the current motor’s existing movement steps, the difference between the actual volume and the preset volume The volume difference can accurately reflect the difference between the current inflated volume of the balloon and the expected inflated volume, so that based on the above volume difference, the number of motor movement steps after the last counterpulsation trigger can be accurately updated, and then based on the updated movement steps Adjust the volume of the balloon several times to make the inflation volume of the balloon as close as possible to the preset volume, so as to more accurately achieve the desired effect.

Moreover, since the first pressure reflects the pressure situation of the balloon in the uninflated state before the last counterpulsation trigger, the above-mentioned second pressure reflects the pressure situation of the balloon in the inflated state after the last counterpulsation trigger, and because the reaction The pressure of the balloon before and after the triggering of the counterpulsation can reflect the actual volume of the balloon after the triggering of the counterpulsation. Therefore, based on the first pressure and the second pressure, the actual volume of the balloon after the last counterpulsation is triggered can be accurately calculated, and then accurately adjusted. Balloon volume, more accurate to achieve the desired effect.

In addition, before and after each counterpulse is triggered, the number of motor movement steps after the previous counterpulse trigger is updated, and the volume of the balloon is adjusted according to the updated movement steps, so that each counterpulse can accurately adjust the ball. Capsule volume, better to achieve the desired effect.

In step S202 of the above-mentioned embodiment corresponding to FIG. 2 , in addition to calculating the actual volume of the balloon after the last counterpulsation trigger based on the first pressure and the second pressure, it can also be combined with the remaining volume of the bellows after the last counterpulsation trigger, based on Here, in one embodiment of the present invention, refer to FIG. 3 , which is a schematic flowchart of a second IABP balloon adjustment method provided by the embodiment of the present invention. The above method includes the following steps S301-S306.

Step S301: Before the current counterpulsation is triggered, obtain the first pressure of the balloon before the last counterpulsation is triggered, and the second pressure of the balloon after the last counterpulsation is triggered.

The foregoing step S301 is the same as the foregoing step S201 in the embodiment corresponding to FIG. 2 , and will not be repeated here.

Step S302: Based on the initial volume of the bellows and the number of motor movement steps after the last counterpulse trigger, calculate the remaining volume of the bellows after the last counterpulse trigger.

Before the IABP starts counterpulsation, it is necessary to initialize the IABP. The initialization operation mainly includes stretching the bellows to the preset position, filling the bellows with a certain amount of gas, etc. Based on this, the initial volume of the bellows can be stretched to the preset position. The volume of the bellows after the position.

In the above initialization operation, when filling a certain amount of gas into the bellows, it is necessary to make the pressure of the bellows after filling the gas reach a preset pressure, and the preset pressure may be a pressure lower than the diastolic pressure of the human body.

The remaining volume of the bellows after the last counterpulsation is triggered indicates: the volume of the bellows after the motor drives the bellows to stretch and inflate the balloon.

When calculating the above remaining volume, in the first embodiment, the product of the initial volume of the bellows and the number of movement steps per unit volume can be calculated, and the difference between the above product and the number of movement steps of the motor after the last counterpulsation trigger can be calculated, The product of the above difference and the volume per unit step was determined as the remaining volume of the bellows after the last counterpulsation was triggered. The above-mentioned volume per unit step is: when the motor moves per unit step, the volume change of the balloon is the unit volume.

Since the number of movement steps per unit volume is the number of movement steps of the motor that makes the volume change of the balloon equal to the unit volume, the product between the initial volume of the bellows and the number of movement steps per unit volume represents the motor that makes the inflation change of the balloon reach the initial volume of the bellows Movement steps. Based on this, the difference between the above product and the number of motor movement steps after the last counterpulse trigger indicates the number of motor movement steps corresponding to the remaining volume of the bellows after the last counterpulse trigger, therefore, the difference between the above difference and the volume per unit step The product of is the remaining volume of the bellows after the previous counterpulsation was triggered.

In the second embodiment, the volume difference between the initial volume of the bellows and the product obtained by the above calculation can be calculated by taking the product of the number of motor movement steps after the last counterpulse trigger and the volume per unit step, as the previous counterpulsation The remaining volume of the bellows after the stroke.

Since the volume per unit step represents the unit step of motor movement, the volume change of the balloon is the unit volume. The product between the motor movement steps after the last counterpulsation trigger and the unit step volume represents the volume after the last counterpulsation trigger. The amount of volume change that the balloon is inflated by the number of motor movement steps. Based on this, the difference between the initial volume of the bellows and the above product represents the difference between the initial volume of the bellows and the volume change, that is, the remaining volume of the bellows after the last counterpulsation trigger.

Step S303: Based on the initial volume of the bellows, the remaining volume, the first pressure and the second pressure, calculate the actual volume of the balloon after the last counterpulsation trigger.

In one embodiment, the actual volume of the balloon after the last counterpulsation trigger can be calculated according to the following expression:

Among them, V _r represents the actual volume of the balloon after the last counterpulsation was triggered, p ₁ represents the first pressure, V _s represents the initial volume of the bellows, V _v represents the volume of the incompressible space in the area connected by the balloon inflation pipeline, p ₂ represents the second pressure, and V _p represents the remaining volume of the bellows after the last counterpulsation was triggered.

The incompressible space in the area connected by the balloon inflation pipeline includes the pipeline, the cavity in the valve block of the gas circuit, and the like.

Step S304: After the current counterpulsation trigger starts, calculate the volume difference between the actual volume and the preset volume, and update the number of motor movement steps based on the volume difference.

Wherein, the aforementioned preset volume is: a preset volume expected to be achieved by the balloon during counterpulsation.

Step S305: Operate the motor according to the updated number of motion steps, so as to adjust the volume of the balloon.

The foregoing steps S304-S305 are the same as the foregoing steps S203-S204 in the embodiment corresponding to FIG. 2 , and will not be repeated here.

Since it is based on the initial volume of the bellows, the remaining volume, the first pressure and the second pressure, the actual volume of the balloon after the last counterpulsation is triggered, and because the actual volume of the balloon is related to the initial volume of the bellows, the remaining volume, and the first pressure There is a correlation with the second pressure, therefore, the actual volume of the balloon can be calculated more accurately based on the initial volume of the bellows, the remaining volume, the first pressure and the second pressure.

Corresponding to the above-mentioned IABP balloon adjustment method, an embodiment of the present invention also provides an IABP balloon adjustment device.

Referring to FIG. 4 , FIG. 4 is a schematic structural diagram of an IABP balloon adjustment device provided by an embodiment of the present invention. The above-mentioned device includes the following modules 401-404.

A pressure obtaining module 401, configured to obtain the first pressure of the balloon before the last counterpulsation trigger and the second pressure of the balloon after the last counterpulsation trigger before the current counterpulsation trigger;

The first volume calculation module 402 is configured to calculate the actual volume of the balloon after the last counterpulsation is triggered based on the first pressure and the second pressure;

The step number update module 403 is used to calculate the volume difference between the actual volume and the preset volume after the current counterpulsation trigger is started, and based on the volume difference, perform the motor movement steps after the last counterpulsation trigger Update, wherein the preset volume is: a preset volume that is expected to be achieved by the balloon during counterpulsation;

The volume adjustment module 404 is configured to operate the motor according to the updated number of motion steps, so as to adjust the volume of the balloon.

It can be seen from the above that since the actual volume of the balloon after the last counterpulsation trigger can accurately reflect the inflated volume of the balloon under the current motor’s existing movement steps, the difference between the actual volume and the preset volume The volume difference can accurately reflect the difference between the current inflated volume of the balloon and the expected inflated volume, so that based on the above volume difference, the number of motor movement steps after the last counterpulsation trigger can be accurately updated, and then based on the updated movement steps Adjust the volume of the balloon several times to make the inflation volume of the balloon as close as possible to the preset volume, so as to more accurately achieve the desired effect.

Moreover, since the first pressure reflects the pressure situation of the balloon in the uninflated state before the last counterpulsation trigger, the above-mentioned second pressure reflects the pressure situation of the balloon in the inflated state after the last counterpulsation trigger, and because the reaction The pressure of the balloon before and after the triggering of the counterpulsation can reflect the actual volume of the balloon after the triggering of the counterpulsation. Therefore, based on the first pressure and the second pressure, the actual volume of the balloon after the last counterpulsation is triggered can be accurately calculated, and then accurately adjusted. Balloon volume, to further achieve the desired effect.

In addition, before and after each counterpulse is triggered, the number of motor movement steps after the previous counterpulse trigger is updated, and the volume of the balloon is adjusted according to the updated movement steps, so that each counterpulse can accurately adjust the ball. Capsule volume, better to achieve the desired effect.

In one embodiment of the present invention, the above-mentioned device also includes:

The second volume calculation module is used to calculate the actual volume of the balloon after the last counterpulsation trigger based on the initial volume of the bellows and the previous The number of motor movement steps after the counterpulsation is triggered, and calculate the remaining volume of the bellows after the previous counterpulsation is triggered;

The first volume calculation module 402 is specifically configured to calculate the actual volume of the balloon after the last counterpulsation is triggered based on the initial volume of the bellows, the remaining volume, the first pressure and the second pressure.

Since it is based on the initial volume of the bellows, the remaining volume, the first pressure and the second pressure, the actual volume of the balloon after the last counterpulsation is triggered, and because the actual volume of the balloon is related to the initial volume of the bellows, the remaining volume, and the first pressure There is a correlation with the second pressure, therefore, the actual volume of the balloon can be calculated more accurately based on the initial volume of the bellows, the remaining volume, the first pressure and the second pressure.

In one embodiment of the present invention, the above-mentioned first volume calculation module 402 is specifically used to calculate the actual volume of the balloon after the last counterpulsation trigger according to the following expression:

Among them, V _r represents the actual volume of the balloon after the last counterpulsation was triggered, p ₁ represents the first pressure, V _s represents the initial volume of the bellows, V _v represents the volume of the incompressible space in the area connected by the balloon inflation pipeline, p ₂ represents the second pressure, and V _p represents the remaining volume of the bellows after the last counterpulsation was triggered.

In one embodiment of the present invention, the above-mentioned step count updating module 403 includes:

The steps difference calculation sub-module is used to calculate the product of the volume difference and the number of movement steps per unit volume, and use the calculated product as the difference of movement steps, wherein the number of movement steps per unit volume is: to change the volume of the balloon The amount is the number of motor movement steps per unit volume;

The step count updating sub-module is configured to update the motor motion step count after the previous counterpulsation trigger based on the motion step count difference.

Since the number of movement steps per unit volume represents the number of motor movement steps that cause the balloon volume to change as a unit volume, the product of the volume difference and the number of movement steps per unit volume can accurately represent the number of motor movement steps after the last counterpulsation trigger and The difference in the number of motion steps between the number of motion steps corresponding to the preset volume, so that the number of motion steps of the motor can be accurately updated based on the above-mentioned difference in the number of motion steps.

In one embodiment of the present invention, the above-mentioned steps update submodule is specifically used to calculate the difference between the motor movement steps after the last counterpulsation trigger and the movement step difference if the actual volume is greater than the preset volume , determine the calculated difference as the updated number of motion steps; if the actual volume is smaller than the preset volume, calculate the sum of the number of motor motion steps after the last counterpulsation trigger and the difference between the number of motion steps, and set The calculated sum value is determined as the updated number of motion steps.

Because the number of motor movement steps is adjusted according to the size relationship between the actual volume and the preset volume, the adjustment direction is consistent with the direction of the size difference between the actual volume and the preset volume, thereby accurately adjusting the number of movement steps of the motor.

Corresponding to the above-mentioned IABP balloon adjustment method, an embodiment of the present invention also provides an electronic device.

Referring to FIG. 5, FIG. 5 is a schematic structural diagram of an electronic device provided by an embodiment of the present invention, including a processor 501, a communication interface 502, a memory 503, and a communication bus 504, wherein the processor 501, the communication interface 502, and the memory 503 pass The communication bus 504 completes mutual communication,

Memory 503, used to store computer programs;

The processor 501 is configured to implement the IABP balloon adjustment method provided by the embodiment of the present invention when executing the program stored in the memory 503 .

The communication bus mentioned in the above electronic device may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (Extended Industry Standard Architecture, EISA) bus or the like. The communication bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is used in the figure, but it does not mean that there is only one bus or one type of bus.

The communication interface is used for communication between the electronic device and other devices.

The memory may include a random access memory (Random Access Memory, RAM), and may also include a non-volatile memory (Non-Volatile Memory, NVM), such as at least one disk memory. Optionally, the memory may also be at least one storage device located far away from the aforementioned processor.

The above-mentioned processor can be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU), a network processor (NetworkProcessor, NP), etc.; it can also be a digital signal processor (Digital SignalProcessor, DSP), an application-specific integrated circuit ( Application Specific Integrated Circuit, ASIC), Field-Programmable Gate Array (Field-Programmable GateArray, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.

In yet another embodiment provided by the present invention, a computer-readable storage medium is also provided, and a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor, it implements the Balloon regulation method of IABP.

In yet another embodiment provided by the present invention, a computer program product including instructions is also provided, and when it is run on a computer, the computer implements the method for adjusting the balloon of the IABP provided by the embodiment of the present invention.

It can be seen from the above that since the actual volume of the balloon after the last counterpulsation trigger can accurately reflect the inflated volume that the balloon can achieve under the current motor’s existing movement steps, the difference between the actual volume and the preset volume The volume difference can accurately reflect the difference between the current inflated volume of the balloon and the expected inflated volume, so that based on the above volume difference, the number of motor movement steps after the last counterpulsation trigger can be accurately updated, and then based on the updated movement steps Adjust the volume of the balloon several times to make the inflation volume of the balloon as close as possible to the preset volume, so as to more accurately achieve the desired effect.

Moreover, since the first pressure reflects the pressure situation of the balloon in the uninflated state before the last counterpulsation trigger, the above-mentioned second pressure reflects the pressure situation of the balloon in the inflated state after the last counterpulsation trigger, and because the reaction The pressure of the balloon before and after the triggering of the counterpulsation can reflect the actual volume of the balloon after the triggering of the counterpulsation. Therefore, based on the first pressure and the second pressure, the actual volume of the balloon after the last counterpulsation is triggered can be accurately calculated, and then accurately adjusted. Balloon volume, to further achieve the desired effect.

In addition, before and after each counterpulse is triggered, the number of motor movement steps after the previous counterpulse trigger is updated, and the volume of the balloon is adjusted according to the updated movement steps, so that each counterpulse can accurately adjust the ball. Capsule volume, better to achieve the desired effect.

In the above embodiments, all or part of them may be implemented by software, hardware, firmware or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present invention will be generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server or data center Transmission to another website site, computer, server, or data center by wired (eg, coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrated with one or more available media. The available medium may be a magnetic medium (for example, a floppy disk, a hard disk, or a magnetic tape), an optical medium (for example, DVD), or a semiconductor medium (for example, a Solid State Disk (SSD)).

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

Each embodiment in this specification is described in a related manner, the same and similar parts of each embodiment can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the embodiments of the apparatus, electronic equipment, and computer-readable storage medium, since they are basically similar to the method embodiments, the description is relatively simple, and for relevant parts, please refer to part of the description of the method embodiments.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present invention are included in the protection scope of the present invention.

Claims (10)

1. A method of balloon modulation of an IABP, the method comprising:

before the current counterpulsation trigger, obtaining a first pressure of the balloon before the last counterpulsation trigger and a second pressure of the balloon after the last counterpulsation trigger;

calculating the actual volume of the balloon after the triggering of the last counterpulsation based on the first pressure and the second pressure;

after the current counterpulsation trigger starts, calculating the volume difference between the actual volume and a preset volume, and updating the motor motion step number after the last counterpulsation trigger based on the volume difference, wherein the preset volume is as follows: a preset volume that the balloon is expected to reach during counterpulsation;

and operating the motor according to the updated movement steps to realize volume adjustment of the saccule.

2. The method of claim 1, further comprising, prior to said calculating an actual volume of the balloon after a last counterpulsation trigger based on the first and second pressures:

calculating the residual volume of the bellows after the first counterpulsation trigger based on the initial volume of the bellows and the motor movement step number after the last counterpulsation trigger;

calculating an actual volume of the balloon after the computation of the first counterpulsation trigger based on the first pressure and the second pressure, comprising:

calculating the actual volume of the balloon after the first counterpulsation trigger based on the initial volume of the bellows, the residual volume, the first pressure and the second pressure.

3. The method of claim 2, wherein calculating the actual volume of the balloon after the last counterpulsation trigger based on the initial volume of the bellows, the residual volume, the first pressure, and the second pressure comprises:

calculating the actual volume of the balloon after the last counterpulsation trigger according to the following expression:

wherein, V _r Representing the actual volume of the balloon after the previous counterpulsation trigger, p ₁ Denotes a first pressure, V _s Denotes the initial volume of the windbox, V _v Representing the volume of the incompressible space in the region of the connection of the balloon inflation line, p ₂ Denotes a second pressure, V _p The remaining volume of the bellows after the last counterpulsation trigger is indicated.

4. The method of any of claims 1-3, wherein updating the number of motor motion steps after the last counterpulsation trigger based on the volume difference comprises:

calculating the product between the volume difference and the unit volume movement step number, and taking the calculated product as the movement step number difference, wherein the unit volume movement step number is as follows: the volume change of the saccule is the number of motor movement steps of unit volume;

and updating the motor motion step number after the last counterpulsation trigger based on the motion step number difference.

5. The method of claim 4, wherein updating the motor motion step count after the last counterpulsation trigger based on the motion step count difference comprises:

if the actual volume is larger than the preset volume, calculating the difference between the motor movement step number after the triggering of the last counterpulsation and the movement step number difference, and determining the calculated difference as the updated movement step number;

and if the actual volume is smaller than the preset volume, calculating a sum value between the motor movement step number after the triggering of the last counter pulsation and the movement step number difference, and determining the calculated sum value as the updated movement step number.

6. An IABP balloon adjustment device, the device comprising:

the pressure obtaining module is used for obtaining a first pressure of the balloon before the previous counterpulsation trigger and a second pressure of the balloon after the previous counterpulsation trigger before the current counterpulsation trigger;

the first volume calculation module is used for calculating the actual volume of the balloon after the triggering of the last counterpulsation based on the first pressure and the second pressure;

the step number updating module is used for calculating the volume difference between the actual volume and a preset volume after the current counterpulsation trigger starts, and updating the motor motion step number after the previous counterpulsation trigger based on the volume difference, wherein the preset volume is as follows: a preset volume that the balloon is expected to reach during counterpulsation;

and the volume adjusting module is used for operating the motor according to the updated movement steps so as to realize volume adjustment of the saccule.

7. The apparatus of claim 6, further comprising:

the second volume calculation module is used for calculating the residual volume of the bellows after the last counterpulsation trigger based on the initial volume of the bellows and the motor motion step number after the last counterpulsation trigger before the first volume calculation module calculates the actual volume of the balloon after the last counterpulsation trigger based on the first pressure and the second pressure;

the first volume calculation module is specifically configured to calculate an actual volume of the balloon after the triggering of the first counterpulsation based on the initial volume of the bellows, the remaining volume, the first pressure, and the second pressure.

8. The apparatus of claim 7, wherein the first volume calculation module is specifically configured to calculate the actual volume of the balloon after the last counterpulsation trigger according to the following expression:

wherein, V _r Representing the actual volume of the balloon after the previous counterpulsation trigger, p ₁ Denotes a first pressure, V _s Denotes the initial volume of the windbox, V _v Representing the volume of the incompressible space in the region of the connection of the balloon inflation line, p ₂ Denotes a second pressure, V _p The remaining volume of the bellows after the last counterpulsation trigger is indicated.

9. The apparatus according to any one of claims 6-8, wherein the step number update module comprises:

the step number difference calculation submodule is used for calculating the product between the volume difference and the unit volume movement step number, and taking the calculated product as the movement step number difference, wherein the unit volume movement step number is as follows: the volume change of the saccule is the number of motor movement steps of unit volume;

and the step number updating submodule is used for updating the motor movement step number after the last counterpulsation trigger based on the movement step number difference.

10. An electronic device is characterized by comprising a processor, a communication interface, a memory and a communication bus, wherein the processor and the communication interface are used for realizing mutual communication by the memory through the communication bus;

a memory for storing a computer program;

a processor for implementing the method steps of any one of claims 1 to 5 when executing a program stored in the memory.

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