CN105334875A - Method and device for adjusting flow of flowmeter of anesthesia machine - Google Patents
Method and device for adjusting flow of flowmeter of anesthesia machine Download PDFInfo
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Abstract
The invention discloses a method and device for adjusting the flow of a flowmeter of an anesthesia machine. The method comprises that a final target flow value of the flowmeter is obtained; the final target flow value is compared with a preset flow value; when the final target flow value is lower than the preset flow value, the final target flow value of the flowmeter is determined to a final target low flow value, and time for adjusting the present flow to the final target low flow value in the flowmeter is determined; the time is divided into N time periods; and the flow of the flowmeter is adjusted in each time period so that the flow value in the last time period reaches the final target low flow value. The low flow is adjusted in different time periods, the final flow of the flow meter reaches the final target flow value, and experiments show that time for adjusting the present flow to the final target low flow value in the flowmeter of the anesthesia machine can be shortened by the method and device of the invention.
Description
Technical field
The present invention relates to Anesthesia machine control technology field, particularly relate to a kind of method and the device that regulate anesthesia machine flow meter flow.
Background technology
Flowmeter is a vitals of Anesthesia machine, and doctor provides gas required for operation such as appropriate oxygen, laughing gas etc. by the flow of adjust flux meter to patient.
Existing Anesthesia machine major part adopts PID (proportion-integral-derivative, proportional-integral-differential) control mode controls the flow of electronic flow-meter, described pid control mode is that the target flow value detected according to sensor regulates scale-up factor in ratio circuit, integrating circuit and differentiating circuit, integral time and Differential time respectively, thus makes the flow of flowmeter reach target flow value.The flow range that pid control mode controls is generally 0-20L/min, and the flow of usual below 3L is called low discharge, and the flow of more than 3L is called large discharge.
The control mode of existing Anesthesia machine in whole flow range is identical, and identical pid control mode will accomplish that the quick response of gamut is more difficult at present, be generally accomplish large discharge fast and stable reach default target flow value, so just do not take into account the response time of low discharge.Such as, when large discharge reaches the response of fast and stable, response time of low discharge normally the large discharge response time 3-5 doubly; When the response speed of low discharge is accelerated, will cause occurring oscillatory occurences when large discharge.
Summary of the invention
In view of this, a kind of method and the device that regulate anesthesia machine flow meter flow is embodiments provided, to shorten the time present flow rate of anesthesia machine flow meter being adjusted to final goal small flow rate values.
On the one hand, embodiments provide a kind of method regulating anesthesia machine flow meter flow, described method comprises:
Obtain the final goal flow value of flowmeter;
Described final goal flow value and preset flow value are compared;
When described final goal flow value is less than described preset flow value, determines that the final goal flow value of described flowmeter is final goal small flow rate values, and determine the time present flow rate in described flowmeter being adjusted to final goal small flow rate values;
The described time is divided into N number of time period, described N be greater than 1 positive integer;
A target flow value is set respectively in each time period, and regulate described flowmeter at the flow of time period corresponding to this target flow value according to each target flow value, reach described final goal small flow rate values with the flow value of flow value at the end of making last time period.
Further, described method also comprises:
When described final goal flow value is more than or equal to described preset flow value, determine that the final goal flow value of described flowmeter is final goal large discharge value, regulate the present flow rate of described flowmeter to reach described final goal large discharge value.
Further, a target flow value is set respectively in each time period, and regulate described flowmeter at the flow of time period corresponding to this target flow value according to each target flow value, reach described final goal small flow rate values with the flow value of flowmeter at the end of making last time period, comprising:
Obtain flow fiducial value;
Determine the target flow value of each time period according to described final goal flow value and described flow fiducial value, wherein, the target flow value of last time period equals described final goal small flow rate values;
According to the flow of each target flow value adjust flux meter determined in time period corresponding to this target flow value, arrive described final goal small flow rate values to make the flow value of last time period.
Further, determine the target flow value of each time period according to described final goal flow value and described flow fiducial value, specifically comprise:
Determine the regulations speed V of described flowmeter, described V=(A-B)/N, wherein, A is flow fiducial value, and B is final goal small flow rate values, and A>B, N are the time period number divided;
Determine the target flow value M of each time period, described M=A-V*i, wherein, i is i-th time period, and i is 0,1,2 ... N.
Further, determine the time present flow rate in described flowmeter being adjusted to final goal small flow rate values, specifically comprise: according to the time determining that the proportionate relationship be adjusted between the time of final goal small flow rate values and the time present flow rate in flowmeter being adjusted to final goal large discharge value of the present flow rate in flowmeter the present flow rate in described flowmeter be adjusted to final goal small flow rate values preset.
Further, described proportionate relationship is: T1=a*T2, and wherein, T1 is the time present flow rate of flowmeter being adjusted to final goal low discharge, and T2 is the time present flow rate of flowmeter being adjusted to final goal large discharge, and the value of a is 1.4-1.6.
On the other hand, the embodiment of the present invention additionally provides a kind of device regulating anesthesia machine flow meter flow, and described device comprises:
Acquisition module, for obtaining the final goal flow value of flowmeter;
Comparison module, for comparing described final goal flow value and preset flow value;
Determination module, for when described final goal flow value is less than described preset flow value, the final goal flow value determining described flowmeter is final goal small flow rate values, and determines the present flow rate in described flowmeter to be adjusted to the final goal small flow rate values time;
Divide module, for the described time is divided into N number of time period, described N be greater than 1 positive integer;
First adjustment module, for setting a target flow value in each time period respectively, and regulate described flowmeter at the flow of time period corresponding to this target flow value according to each target flow value, reach described final goal small flow rate values with the flow value of flow value at the end of making last time period.
Further, described device also comprises:
Second adjustment module, for when the comparative result of described comparison module be described final goal flow value be more than or equal to described preset flow value time, determine that the final goal flow value of described flowmeter is final goal large discharge value, regulate the present flow rate of described flowmeter to reach described final goal large discharge value.
Further, described first adjustment module, comprising:
Acquiring unit, for obtaining flow fiducial value;
Determining unit, for determining the target flow value of each time period according to described final goal flow value and described flow fiducial value, wherein, the target flow value of last time period equals described final goal small flow rate values;
Regulon, for according to the flow of each target flow value adjust flux meter determined in time period corresponding to this target flow value, arrives described final goal small flow rate values to make the flow value of last time period.
Further, described determining unit, specifically for:
Determine the regulations speed V of described flowmeter, described V=(A-B)/N, wherein, A is flow fiducial value, and B is final goal small flow rate values, and A>B, N are the time period number divided;
Determine the target flow value M of each time period, described M=A-V*i, wherein, i is i-th time period, and i is 0,1,2 ... N.
The method of the adjustment anesthesia machine flow meter flow that the embodiment of the present invention provides, final goal flow value is less than to the low discharge of preset flow value, first the flow regulation time is divided into the N time period, then respectively at each time period adjust flux, make the final flow rate of flowmeter reach final goal flow value, emulate the method that can obtain adjustment anesthesia machine flow meter flow provided by the invention by experiment and can shorten the time present flow rate of anesthesia machine flow meter being adjusted to final goal small flow rate values.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of the method for the adjustment anesthesia machine flow meter flow that the embodiment of the present invention provides;
Fig. 2 is the analogous diagram of the adjustment anesthesia machine flow meter method of flow that prior art provides;
Fig. 3 is the analogous diagram of the adjustment anesthesia machine flow meter method of flow that the embodiment of the present invention provides;
Fig. 4 is the block diagram at each time period adjust flux in the method for the adjustment anesthesia machine flow meter flow that the embodiment of the present invention provides;
Fig. 5 is the block diagram determining each time period target flow value in the method for the adjustment anesthesia machine flow meter flow that the embodiment of the present invention provides;
Fig. 6 is the process flow diagram of a preferred implementation of the method for the adjustment anesthesia machine flow meter flow that the embodiment of the present invention provides.
Fig. 7 is the schematic diagram of the device of the adjustment anesthesia machine flow meter flow that the embodiment of the present invention provides.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.Be understandable that, specific embodiment described herein is only for explaining the present invention, but not limitation of the invention.It also should be noted that, for convenience of description, illustrate only part related to the present invention in accompanying drawing but not full content.
Fig. 1 shows the process flow diagram of the method for the adjustment anesthesia machine flow meter flow that the embodiment of the present invention provides, and the executive agent of the embodiment of the present invention can be controller.As shown in Figure 1, details are as follows for described flow process:
The final goal flow value of step 101, acquisition flowmeter.
In the present embodiment, described final goal flow value can be set according to the situation of patient by doctor, the peak flow values that described final goal flow value can reach for the flow in flowmeter, such as, the final goal flow value got is 4L, illustrates that the flow value in this flowmeter is 4L to the maximum.
Step 102, described final goal flow value and preset flow value to be compared.
In the present embodiment, described preset flow value can rule of thumb obtain usually.Due in actual application, when the regulative mode of controller is consistent, flow response speed when flow response speed when the final goal flow value of flowmeter is less than 3L and final goal flow value are greater than 3L differs greatly, so generally described preset flow value can be set to 3L.The above-mentioned flow response speed mentioned is the time that present flow rate in controller adjust flux meter reaches final goal flow value.
Step 103, when described final goal flow value is less than or equal to described preset flow value, the final goal flow value determining described flowmeter is final goal small flow rate values, and determines the time present flow rate in described flowmeter being adjusted to final goal small flow rate values.
In the present embodiment, when described final goal flow value is greater than described preset flow value, determine that the final goal flow value of described flowmeter is final goal large discharge value, when final goal flow is large discharge value, without the need to carrying out subsequent step, direct regulative mode traditionally, is adjusted to final goal large discharge by the present flow rate of flowmeter.
Step 104, the described time is divided into N number of time period, described N be greater than 1 positive integer.
In the present embodiment, the described time can be divided into the time segments such as N number of, also can be divided into the time period of N number of not decile the described time.
Step 105, set a target flow value in each time period respectively, and regulate described flowmeter at the flow of time period corresponding to this target flow value according to each target flow value, reach described final goal small flow rate values with the flow value of flow value at the end of making last time period.
In the present embodiment, can distribute a target flow value for each time period, General Requirements is comparatively large first time period target flow value, and when arriving the time of setting, the flow in flowmeter does not reach the target flow value of this time period.The flow of controller regulative mode adjust flux meter traditionally within each time period.The present flow rate of first time period flowmeter is 0L, and the flow at the end of the present flow rate of later each time period is previous time period in flowmeter, at the end of will ensureing last time period, the flow in flowmeter reaches final goal small flow rate values simultaneously.
Fig. 2 shows the analogous diagram of the adjustment anesthesia machine flow meter method of flow that prior art provides, and Fig. 3 shows the analogous diagram of the adjustment anesthesia machine flow meter method of flow that the embodiment of the present invention provides, Fig. 2 and Fig. 3 all for final goal flow for 1L.In Fig. 2 and Fig. 3, horizontal ordinate is the time, and ordinate is magnitude of voltage, because in controller, flow value represents usually in the form of a voltage.Curve 1 is the magnitude of voltage that final goal flow value is corresponding, and curve 2 is the magnitude of voltage that the flow in flowmeter is corresponding.Usually the corresponding relation between final goal flow value and voltage can be preset in the controller, and flow in flowmeter and the corresponding relation between voltage, such as, in curve 1, when voltage is 0V, represent that final goal flow value is 0L, when voltage is 1.1V, represent that final goal flow value is 1L; In curve 2, when voltage is 0V, represent that the flow in flowmeter is 0L, when voltage is 3.9V, represent that the flow in flowmeter is 1L.In Fig. 2 and Fig. 3, the time that voltage in curve 2 rises to 3.9V by 0V is the time of the flow in controller adjust flux meter by 0L arrival final goal flow value 1L, as can be seen from Figures 2 and 3, the method adopting the embodiment of the present invention to provide shortens the time present flow rate of flowmeter being adjusted to final goal flow value.
The method of the adjustment anesthesia machine flow meter flow that the embodiment of the present invention provides, final goal flow value is less than to the low discharge of preset flow value, first the flow regulation time is divided into the N time period, then respectively at each time period target setting flow value, and according to the target flow value adjust flux set, make the final flow rate of flowmeter reach final goal flow value, emulate the method that can obtain adjustment anesthesia machine flow meter flow provided by the invention by experiment and can shorten the time present flow rate of anesthesia machine flow meter being adjusted to final goal small flow rate values.
In above-described embodiment, determine the time present flow rate in described flowmeter being adjusted to final goal small flow rate values in step 103, specifically can comprise: according to the time determining that the proportionate relationship be adjusted between the time of final goal small flow rate values and the time present flow rate in flowmeter being adjusted to final goal large discharge value of the present flow rate in flowmeter the present flow rate in described flowmeter be adjusted to final goal small flow rate values preset.Described proportionate relationship is: T1=a*T2, and wherein, T1 is the time present flow rate of flowmeter being adjusted to final goal low discharge, and T2 is the time present flow rate of flowmeter being adjusted to final goal large discharge, and the value of a can be 1.4-1.6.
In above-described embodiment, step 105 sets a target flow value in each time period respectively, and regulate described flowmeter at the flow of time period corresponding to this target flow value according to each target flow value, reach described final goal small flow rate values with the flow value of flow value at the end of making last time period, specifically can comprise the step shown in Fig. 4:
Step 401, acquisition flow fiducial value.
In this step, flow fiducial value is greater than described preset flow value usually, preferably, and desirable 5L.
Step 402, determine the target flow value of each time period according to described final goal flow value and described flow fiducial value, wherein, the target flow value of last time period equals described final goal small flow rate values.
In this step, when the length of each time period is different, determine the target flow value of each time period by Multi simulation running experiment.When the length of each time period is identical, the step shown in Fig. 5 can be adopted to determine the target flow value of each time period, as shown in Figure 5, described step can comprise:
Step 501, determine the regulations speed V of described flowmeter, described V=(A-B)/N, wherein, A is flow fiducial value, and B is final goal small flow rate values, and A>B, N are the time period number divided.
Step 502, determine the target flow value M of each time period, described M=A-V*i, wherein, i is i-th time period, and i is 0,1,2 ... N.
Step 403, according to the flow of each target flow value adjust flux meter determined in time period corresponding to this target flow value, arrive described final goal small flow rate values to make the flow value of last time period.
Fig. 6 shows the process flow diagram of a preferred implementation of the embodiment of the present invention, and as shown in Figure 6, details are as follows for described flow process:
Step 601, acquisition final goal flow value F
0.
Step 602, judge F
0be be less than 3L, if not, proceed to step 603, if proceed to step 604.
In step, F
0low discharge is called when being less than 3L, otherwise, be called large discharge.
The present flow rate of step 603, adjust flux meter reaches F
0, proceed to step 612.
Step 604, to determine the flow regulation of flowmeter to F
0time T.
In this step, rule of thumb known, the present flow rate of controller adjust flux meter is generally 300ms to the time T1 of final goal large discharge value, time T can be defined as 1.5 times of T1 here, i.e. T=450ms.
Step 605, the described time is divided into 12 equal portions, using each time period as the schedule time.
Can obtain each time period by T/12 is 37.5ms.
The regulations speed V of step 606, calculated flow rate meter.
In this step, V=(A-F
0)/12, A are flow fiducial value, can be set to 5L here.
Step 607, determine the target flow value M of flowmeter in i-th period.
In this step, M=A-V*i, wherein i is i-th time period, and A is flow fiducial value, identical with step 607.
Step 608, regulate the flow of flowmeter in i-th period.
In this step, the value of i is 0,1,2 ... 12.The flow of adjust flux meter from i=0.
Step 609, judge whether arrive the schedule time, if not, proceed to step 608; If so, step 610 is proceeded to.
The schedule time in this step is the time 37.5ms that step 605 calculates.
Step 610, execution i=i+1.
Step 611, judge whether i is greater than 12, if so, proceed to step 612, if not, proceed to step 607.
In this step, as i>12, represent the flow regulation of 12 time periods of completing steps 605 division.When i≤12, represent the flow regulation also not completing 12 time periods, the flow in flowmeter does not also reach final goal flow F
0.
Step 612, reach final goal flow F
0, complete flow regulation.
The embodiment of the present invention is by reasonable set time T, the division hop count of time T and flow fiducial value A, thus the present flow rate shortening adjust flux meter reaches final goal flow F
0time.
Fig. 7 shows the schematic diagram of the device of the adjustment anesthesia machine flow meter flow that the embodiment of the present invention provides, described device can be used for the method performing the adjustment anesthesia machine flow meter flow that foregoing invention embodiment provides, as shown in Figure 7, described device can comprise: acquisition module 71, comparison module 72, determination module 73, division module 74 and the first adjustment module 75.Wherein, described acquisition module 71 is for obtaining the final goal flow value of flowmeter, described comparison module 72 is for comparing described final goal flow value and preset flow value, described determination module 73 is for when described final goal flow value is less than described preset flow value, determine that the final goal flow value of described flowmeter is final goal small flow rate values, and determine the present flow rate in described flowmeter to be adjusted to the final goal small flow rate values time, described time present flow rate in flowmeter being adjusted to final goal small flow rate values and the time proportional relation present flow rate in flowmeter being adjusted to final goal large discharge value, described proportionate relationship is: T1=a*T2, wherein, T1 is the time present flow rate of flowmeter being adjusted to final goal low discharge, T2 is the time present flow rate of flowmeter being adjusted to final goal large discharge, the value of a can be 1.4-1.6, described division module 74 for the described time is divided into N number of time period, described N be greater than 1 positive integer, described first adjustment module 75 is for setting a target flow value in each time period respectively, and regulate described flowmeter at the flow of time period corresponding to this target flow value according to each target flow value, reach described final goal small flow rate values with the flow value of flow value at the end of making last time period.
Described device also can comprise: the second adjustment module 76, described second adjustment module 76 for when the comparative result of described comparison module be described final goal flow value be more than or equal to described preset flow value time, determine that the final goal flow value of described flowmeter is final goal large discharge value, regulate the present flow rate of described flowmeter to reach described final goal large discharge value.
In the present embodiment, described first adjustment module 75 can comprise: acquiring unit 751, determining unit 752 and regulon 753.Wherein, described acquiring unit 751 is for obtaining flow fiducial value; Described determining unit 752 is for determining the target flow value of each time period according to described final goal flow value and described flow fiducial value, wherein, the target flow value of last time period equals described final goal small flow rate values; Described regulon 753, for according to the flow of each target flow value adjust flux meter determined in time period corresponding to this target flow value, arrives described final goal small flow rate values to make the flow value of last time period.
Described determining unit 752 specifically can be used for:
Determine the regulations speed V of described flowmeter, described V=(A-B)/N, wherein, A is flow fiducial value, and B is final goal small flow rate values, and A>B, N are the time period number divided;
Determine the target flow value M of each time period, described M=A-V*i, wherein, i is i-th time period, and i is 0,1,2 ... N.
The embodiment of the present invention provide adjustment anesthesia machine flow meter flow device for perform that any embodiment of the present invention provides the method for adjustment anesthesia machine flow meter flow, possesses corresponding functional module, the technique effect similar to described method can be reached, repeat no more herein.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of computer installation, thus they storages can be performed by calculation element in the storage device, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to the combination of any specific hardware and software.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, to those skilled in the art, the present invention can have various change and change.All do within spirit of the present invention and principle any amendment, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. regulate a method for anesthesia machine flow meter flow, it is characterized in that, described method comprises:
Obtain the final goal flow value of flowmeter;
Described final goal flow value and preset flow value are compared;
When described final goal flow value is less than described preset flow value, determines that the final goal flow value of described flowmeter is final goal small flow rate values, and determine the time present flow rate in described flowmeter being adjusted to final goal small flow rate values;
The described time is divided into N number of time period, described N be greater than 1 positive integer;
A target flow value is set respectively in each time period, and regulate described flowmeter at the flow of time period corresponding to this target flow value according to each target flow value, reach described final goal small flow rate values with the flow value of flow value at the end of making last time period.
2. the method for adjustment anesthesia machine flow meter flow according to claim 1, it is characterized in that, described method also comprises:
When described final goal flow value is more than or equal to described preset flow value, determine that the final goal flow value of described flowmeter is final goal large discharge value, regulate the present flow rate of described flowmeter to reach described final goal large discharge value.
3. the method for adjustment anesthesia machine flow meter flow according to claim 1, it is characterized in that, a target flow value is set respectively in each time period, and regulate described flowmeter at the flow of time period corresponding to this target flow value according to each target flow value, reach described final goal small flow rate values with the flow value of flowmeter at the end of making last time period, comprising:
Obtain flow fiducial value;
Determine the target flow value of each time period according to described final goal flow value and described flow fiducial value, wherein, the target flow value of last time period equals described final goal small flow rate values;
According to the flow of each target flow value adjust flux meter determined in time period corresponding to this target flow value, arrive described final goal small flow rate values to make the flow value of last time period.
4. the method for adjustment anesthesia machine flow meter flow according to claim 3, is characterized in that, determines the target flow value of each time period, specifically comprise according to described final goal flow value and described flow fiducial value:
Determine the regulations speed V of described flowmeter, described V=(A-B)/N, wherein, A is flow fiducial value, and B is final goal small flow rate values, and A>B, N are the time period number divided;
Determine the target flow value M of each time period, described M=A-V*i, wherein, i is i-th time period, and i is 0,1,2 ... N.
5. the method for adjustment anesthesia machine flow meter flow according to claim 2, it is characterized in that, determine the time present flow rate in described flowmeter being adjusted to final goal small flow rate values, specifically comprise: according to the time determining that the proportionate relationship be adjusted between the time of final goal small flow rate values and the time present flow rate in flowmeter being adjusted to final goal large discharge value of the present flow rate in flowmeter the present flow rate in described flowmeter be adjusted to final goal small flow rate values preset.
6. the method for adjustment anesthesia machine flow meter flow according to claim 5, it is characterized in that, described proportionate relationship is: T1=a*T2, wherein, T1 is the time present flow rate of flowmeter being adjusted to final goal low discharge, T2 is the time present flow rate of flowmeter being adjusted to final goal large discharge, and the value of a is 1.4-1.6.
7. regulate a device for anesthesia machine flow meter flow, it is characterized in that, described device comprises:
Acquisition module, for obtaining the final goal flow value of flowmeter;
Comparison module, for comparing described final goal flow value and preset flow value;
Determination module, for when described final goal flow value is less than described preset flow value, the final goal flow value determining described flowmeter is final goal small flow rate values, and determines the present flow rate in described flowmeter to be adjusted to the final goal small flow rate values time;
Divide module, for the described time is divided into N number of time period, described N be greater than 1 positive integer;
First adjustment module, for setting a target flow value in each time period respectively, and regulate described flowmeter at the flow of time period corresponding to this target flow value according to each target flow value, reach described final goal small flow rate values with the flow value of flow value at the end of making last time period.
8. the device of adjustment anesthesia machine flow meter flow according to claim 7, it is characterized in that, described device also comprises:
Second adjustment module, for when the comparative result of described comparison module be described final goal flow value be more than or equal to described preset flow value time, determine that the final goal flow value of described flowmeter is final goal large discharge value, regulate the present flow rate of described flowmeter to reach described final goal large discharge value.
9. the device of adjustment anesthesia machine flow meter flow according to claim 7, is characterized in that, described first adjustment module, comprising:
Acquiring unit, for obtaining flow fiducial value;
Determining unit, for determining the target flow value of each time period according to described final goal flow value and described flow fiducial value, wherein, the target flow value of last time period equals described final goal small flow rate values;
Regulon, for according to the flow of each target flow value adjust flux meter determined in time period corresponding to this target flow value, arrives described final goal small flow rate values to make the flow value of last time period.
10. the device of adjustment anesthesia machine flow meter flow according to claim 9, is characterized in that, described determining unit, specifically for:
Determine the regulations speed V of described flowmeter, described V=(A-B)/N, wherein, A is flow fiducial value, and B is final goal small flow rate values, and A>B, N are the time period number divided;
Determine the target flow value M of each time period, described M=A-V*i, wherein, i is i-th time period, and i is 0,1,2 ... N.
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| CN113634185A (en) * | 2021-07-23 | 2021-11-12 | 北京百瑞盛田环保科技发展有限公司 | Monitoring method and device for mixed medicament preparation |
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| CN113634185B (en) * | 2021-07-23 | 2023-10-31 | 北京百瑞盛田环保科技发展有限公司 | Monitoring method and device for mixed medicament preparation |
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