Control method of blood purification equipment, blood purification equipment and computer-readable storage medium

Abstract

The present invention provides a control method for a blood purification device, a blood purification device, and a computer-readable storage medium. The control method for the blood purification device includes: detecting the blood flow in the arterial line to obtain a first detection flow Q1, and detecting the plasma flow at the input end of the plasma adsorption branch to obtain a second detection flow Q2; calculating to obtain the separation ratio of the plasma separator to determine whether K>Δk is satisfied, and if so, controlling the bypass branch to be connected to the venous line; if not, controlling the blood purification branch to be connected to the venous line; wherein Δk is a first preset ratio. The control method for the blood purification device of the present invention can adaptively adjust the structure of the extracorporeal blood purification circuit, and has high adjustment flexibility, thereby improving the efficiency and effect of blood purification treatment, making blood purification treatment safer and more reliable, and improving the compatibility and scope of application of the blood purification device.

Claims

1. A blood purification device, characterized in that: The blood purification device comprises a host and a display screen, and the extracorporeal blood purification circuit comprises a plasma separator, an adsorption column, a blood purifier, an arterial line, a connecting line, a plasma adsorption branch, a bypass branch, a blood purification branch, and a venous line. The output end of the arterial line is connected to the blood input end of the plasma separator, the blood output end of the plasma separator is connected to the input end of the connecting line, and the output end of the connecting line is provided with a connection point. The input end of the plasma adsorption branch is connected to the plasma output end of the plasma separator, and the output end of the plasma adsorption branch is connected to the connecting pipeline. The adsorption column is connected in series to the plasma adsorption branch. The bypass branch and the blood purification branch are connected in parallel between the connection point and the input end of the venous pipeline. The blood purifier is connected in series to the blood purification branch. The host is provided with a circuit board that can interactively communicate with the display screen. The circuit board is provided with a processor and a memory. The memory stores a computer program. When the computer program is executed by the processor, the following control method of the blood purification device is implemented, including: Detecting the blood flow of the arterial line to obtain a first detection flow , and detecting the plasma flow rate at the input end of the plasma adsorption branch to obtain a second detection flow rate ; Calculate to obtain the plasma separation ratio of the plasma separator ; Determine whether it is satisfied If yes, then control the bypass branch to be connected to the venous line; if not, control the blood purification branch to be connected to the venous line; in, It is a first preset ratio, and the connection point is used to control the single selection of the bypass branch and the blood purification branch to be connected to the venous line.

2. The blood purification device according to claim 1, characterized in that: The control method of the blood purification device further includes: Detecting the plasma adsorption branch plasma continuous flow time to obtain a first detection time t1; When it is determined that the first detection time t1 is greater than a first preset time, controlling the blood purification device to emit an audible and visual prompt signal for replacing the adsorption column; When it is determined that the first detection time t1 is greater than a second preset time, controlling the adsorption pump on the plasma adsorption branch to be turned off; The second preset time is greater than the first preset time.

3. The blood purification device according to claim 1, characterized in that: When the blood purification branch is connected to the venous line, the control method of the blood purification device further includes: Detecting the blood temperature at the blood input end of the blood purifier to obtain a first detection temperature , and detecting the blood temperature at the blood output end of the blood purifier to obtain a second detection temperature ; Determine whether it is satisfied If so, the blood purification device is controlled to send out a blood purifier failure alarm signal; in, The preset safety temperature.

4. The blood purification device according to claim 1, characterized in that: The blood purification branch is provided with a first bubble detector, and the venous line is provided with a second bubble detector; When the blood purification branch is connected to the venous line, the control method of the blood purification device further includes: Detecting the first bubble amount in the blood purification branch by the first bubble detector and detecting the second bubble amount in the venous line by the second bubble detector ; Determine whether it is satisfied If so, the blood purification device is controlled to emit a light source alarm signal indicating a pipeline connection failure; in, The preset bubble volume.

5. The blood purification device according to claim 1, characterized in that: When the blood purification branch is connected to the venous line, the control method of the blood purification device further includes: Detect the blood flow at the input end of the blood purification branch to obtain a third detection flow , and controls the display screen of the blood purification device to display the third detection flow ; When the third detection flow rate is determined When the flow rate is less than the preset minimum limit value of the plasma separator, the blood purification device is controlled to send an audible and visual alarm signal indicating that there is an abnormal flow rate in the plasma separator.

6. The blood purification device according to claim 1, characterized in that: When the blood purification branch is connected to the venous line, the control method of the blood purification device further includes: Obtaining the continuous purification time of the blood purifier to obtain a second detection time t2; when When the blood flow rate at the output end of the blood purifier is detected, a fourth detection flow rate is obtained. ; Determine whether it is satisfied If so, the blood purification device is controlled to send a blood flow fault signal; in, is a positive integer, The preset time period.

7. The blood purification device according to any one of claims 1 to 6, characterized in that: When the blood purification branch is connected to the venous line, and the blood purifier is a dialyzer, the control method of the blood purification device further includes: Detecting the blood ionization degree at the blood input end of the dialyzer to obtain a first ionization degree ; Detecting the blood ionization degree at the blood output end of the dialyzer to obtain a second ionization degree ; Determine whether it is satisfied If yes, the blood purification device is controlled to send a hemodialysis fault signal; in, is the preset ionization difference.

8. The blood purification device according to any one of claims 1 to 6, characterized in that: When the blood purification branch is connected to the venous line, and the blood purifier is a filter, the waste liquid output end of the filter is connected to a waste liquid bag, and the waste liquid bag is used to collect waste liquid output from the waste liquid output end of the filter; The control method of the blood purification device further includes: Detect the weight of the waste liquid bag, calculate the weight increase rate of the waste liquid bag according to the weight of the waste liquid bag, and calculate the blood purification efficiency of the filter according to the weight increase rate of the waste liquid bag ; Determine whether it is satisfied If not, controlling the blood purification device to send the filter purification failure signal; in, is the first preset purification efficiency, The second preset purification efficiency; And / or, obtain the separation ratio and the weight increase rate of the waste liquid bag, and controlling the display screen of the blood purification device to display the change curve.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, each step of the control method of the blood purification device according to any one of claims 1 to 8 is implemented.

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