CN117433603B - Metering device for metering analgesic pump residual liquid - Google Patents
Metering device for metering analgesic pump residual liquid Download PDFInfo
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- CN117433603B CN117433603B CN202311747154.2A CN202311747154A CN117433603B CN 117433603 B CN117433603 B CN 117433603B CN 202311747154 A CN202311747154 A CN 202311747154A CN 117433603 B CN117433603 B CN 117433603B
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- photosensitive plate
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- 239000007788 liquid Substances 0.000 title claims abstract description 250
- 230000000202 analgesic effect Effects 0.000 title claims abstract description 31
- 239000003814 drug Substances 0.000 claims abstract description 82
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 239000012530 fluid Substances 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 11
- 229940079593 drug Drugs 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 206010070834 Sensitisation Diseases 0.000 description 2
- 230000036592 analgesia Effects 0.000 description 2
- 230000008313 sensitization Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F22/00—Methods or apparatus for measuring volume of fluids or fluent solid material, not otherwise provided for
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention discloses a metering device and a metering method for metering analgesic pump residual liquid, which relate to the field of volumetric metering of analgesic pump residual liquid, and comprise a storage tank and a controller, wherein a liquid level sensor is arranged in the storage tank; a laser transmitter capable of transmitting laser is arranged at the top or above the storage groove, a photosensitive plate capable of sensing the laser is arranged at the bottom of the storage groove, and the laser transmitter is positioned above the photosensitive plate; the laser emitter, the liquid level sensor and the photosensitive plate uniformity controller are electrically or signally connected; the storage tank is connected with a liquid discharge device for discharging the liquid medicine in the storage tank. The invention can accurately measure the residual medicine liquid after the analgesic pump medicine is used, so that the closed-loop management of the dosage of the analgesic pump medicine liquid can be effectively realized.
Description
Technical Field
The invention relates to the field of metering of the volume of analgesic pump raffinate, in particular to a metering device and a metering method for metering the analgesic pump raffinate.
Background
Analgesic pump a fluid infusion set that maintains a consistent concentration of drug in the blood can help achieve better analgesic treatment with less drug. The analgesic pump is usually a nerve medicine, and hospitals have strict control on the medicine dosage, including the dosage, the patient dosage and the residual medicine liquid after use; the residual amount of the used liquid medicine plus the usage amount of the patient is strictly equal to the usage amount, so that the closed-loop management of the usage amount of the analgesic pump liquid medicine is formed.
For the usage amount of a patient, the analgesic pump can accurately measure according to the flow and the time; however, for the residual liquid after use, only metering is performed through metering devices such as a measuring cylinder, a measuring cup and the like at present, manual reading is performed, large errors exist, even incorrect reading occurs, and closed-loop management of the residual liquid consumption of the analgesic pump cannot be effectively realized; although the liquid level sensor is utilized by a part of metering devices to acquire residual liquid level data along with the progress of science and technology, after the residual liquid is poured in, the residual liquid level fluctuates, and whether the residual liquid level is in a calm state cannot be clearly judged, so that the liquid level data acquired by the liquid level sensor is inaccurate; in order to ensure that the liquid level sensor acquires the liquid level accurately so as to ensure that the capacity of the residual liquid is acquired accurately, the existing mode only needs to be kept still for a long time, and the liquid level of the residual liquid is determined to be in a calm state after the liquid level is kept still for a period of time; this approach severely affects metering efficiency and does not guarantee that the liquid level of the raffinate will be calm after a period of rest.
For this reason, a metering device is needed that can accurately meter the amount of residual fluid after use of the analgesic pump medication.
Disclosure of Invention
The invention aims at: aiming at the problems, the metering device and the metering method for metering the residual liquid of the analgesic pump are provided, so that the residual liquid of the analgesic pump after the use of the medicine can be accurately metered, and the closed-loop management of the dosage of the medicine of the analgesic pump can be effectively realized.
The technical scheme adopted by the invention is as follows: the metering device for metering the rest liquid of the analgesic pump comprises a storage tank and a controller, wherein a liquid level sensor is arranged in the storage tank; a laser transmitter capable of transmitting laser is arranged at the top or above the storage groove, a photosensitive plate capable of sensing the laser is arranged at the bottom of the storage groove, and the laser transmitter is positioned above the photosensitive plate; the laser emitter, the liquid level sensor and the photosensitive plate uniformity controller are electrically or signally connected; the storage tank is connected with a liquid discharge device for discharging the liquid medicine in the storage tank.
Further, the controller is signally connected to a management system.
Further, the bottom of storage tank is provided with sealed safety cover, and the sensitization board is assembled in the safety cover.
Further, the number of the storage tanks is a plurality.
Further, the liquid draining device comprises a liquid draining pipe and a liquid drawing pump, one end of the liquid draining pipe is communicated with the inside of the storage groove, and the other end of the liquid draining pipe is connected with the liquid drawing pump.
Further, each storage groove is connected with a liquid discharge pipe, all liquid discharge pipes are connected to a main pipe together, and the main pipe is connected with a liquid pump.
Further, a liquid outlet is formed in the bottom of the storage groove, and one end of the liquid outlet pipe is connected with the liquid outlet.
Further, a valve is arranged on the liquid discharge pipe, and the valve is arranged at a position as close to or in the liquid discharge port as possible.
Further, the valve is an electromagnetic valve and is electrically connected with the controller.
Further, a code scanning gun is supported on the storage groove and is connected with the controller through an electric signal.
Further, a camera is arranged on the storage groove and is connected with the controller through an electric signal.
A metering method, which uses the metering device for metering the residual solution of the analgesic pump, comprises the following steps:
s1: the laser transmitter emits laser, and the laser acts on the photosensitive plate;
s2: pouring the liquid medicine into the storage tank, and enabling the laser to pass through the liquid medicine and then act on the photosensitive plate;
s3: as the liquid medicine is poured into the storage tank, the liquid level of the liquid medicine fluctuates, and a plurality of different positions on the photosensitive plate sense laser; standing until only one fixed position exists on the photosensitive plate and laser can be sensed, and the liquid level of the liquid medicine is calm;
s4: the photosensitive plate sends the photosensitive state to a controller, and the controller controls the liquid level sensor to work;
s5: the liquid level sensor acquires the liquid level of the liquid medicine in the storage tank and transmits liquid level data of the liquid medicine to the controller;
s6: the controller obtains liquid level data of the liquid medicine, calculates the liquid medicine amount in the storage tank, and finishes metering the liquid medicine.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
1. according to the invention, the liquid level in the storage tank is detected by the liquid level sensor, so that the amount of the liquid medicine in the storage tank is obtained, and compared with the amount of the liquid medicine obtained by manual reading, the accuracy and the reliability of the amount of the liquid medicine are greatly improved;
2. according to the invention, the laser is emitted by the laser emitter, and the photosensitive plate senses the laser position, so that whether the liquid level of the liquid medicine is in a calm state can be timely and accurately judged, thereby improving the accuracy of liquid level data acquired by the liquid level sensor and effectively avoiding the liquid level data acquired by the liquid level sensor from being liquid level data of liquid medicine fluctuation; and the efficiency of liquid medicine metering is improved, and the liquid medicine is prevented from being metered after standing for too long time.
Drawings
The invention will now be described by way of example and with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of the structure of the present invention;
the marks in the figure: 1-a storage tank; 2-a liquid level sensor; 3-a laser emitter; 4-a photosensitive plate; 5-a liquid discharge pipe; 6-valve; 7-a main pipe; 8-a liquid pump; 9, a code scanning gun; 10-camera.
Detailed Description
All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.
Any feature disclosed in this specification may be replaced by alternative features serving the same or equivalent purpose, unless expressly stated otherwise. That is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise.
Example 1
As shown in fig. 1, a metering device for metering residual liquid of an analgesic pump comprises a storage tank 1 and a controller, wherein residual liquid after administration of the analgesic pump can be poured into the storage tank 1, a liquid level sensor 2 is arranged in the storage tank 1, and the liquid level sensor 2 obtains the liquid level of the residual liquid in the storage tank 1; a laser emitter 3 capable of emitting laser is arranged at the top or above the storage tank 1, and the specific arrangement position is provided that the rest liquid is poured into the storage tank 1 without disturbing the analgesic pump; in addition, the laser emitter 3 is arranged at the top or above the storage groove 1, so that the phenomenon that residual liquid is attached to the front end of the laser emitter 3 to influence the normal laser emission of the laser emitter 3 can be effectively avoided; the bottom of the storage tank 1 is provided with a photosensitive plate 4 capable of sensing laser, the laser emitter 3 is positioned above the photosensitive plate 4, and the liquid level of residual liquid in the storage tank 1 is ensured to be positioned between the photosensitive plate 4 and the laser emitter 3, so that laser emitted by the laser emitter 3 can pass through an air-liquid interface, and a foundation is provided for judging whether the liquid level of the residual liquid is in a calm state or not; the laser emitter 3, the liquid level sensor 2 and the photosensitive plate 4 are electrically or signally connected with a uniform controller, the controller can select a micro processor or a compileable single chip microcomputer, and can self-compile a control program and provide basic required electric energy for the laser emitter 3, the liquid level sensor 2, the photosensitive plate 4 and other components; the controller is externally connected with a power grid; the storage tank 1 is connected with a liquid discharge device for discharging the liquid medicine in the storage tank 1.
Specifically, in this embodiment, the liquid level in the storage tank 1 is detected by the liquid level sensor 2, so as to obtain the amount of the liquid medicine in the storage tank 1, and compared with the amount of the liquid medicine obtained by manual reading, the accuracy and reliability of the amount of the liquid medicine are greatly improved.
Further, the metering principle of the metering device is as follows.
The controller controls the laser emitter 3 to emit laser, and the laser can act on the photosensitive plate 4 through the air-liquid interface; if the air-liquid interface fluctuates, namely in an unsteady state, the liquid level sensor 2 cannot accurately measure the liquid level of the residual liquid in the storage tank 1, so that the volume of the residual liquid in the storage tank 1 cannot be accurately obtained; therefore, it is necessary to determine whether there is a fluctuation in the air-liquid interface.
Specifically, if there is fluctuation in the air-liquid interface, the incident angle of the laser beam entering the air-liquid interface will be changed continuously, so the refraction route of the laser beam in the residual liquid will be changed continuously, and further, the position of the laser beam perceived on the photosensitive plate 4 will be changed continuously; or/and if the air-liquid interface fluctuates, multiple interfaces can appear in the process of residual liquid fluctuation, so that laser light is scattered in residual liquid, and further, a plurality of positions on the photosensitive plate 4 can feel the laser light; for this reason, when the state of the light sensing plate 4 sensing laser light is either of the two or more above, the light sensing plate 4 transmits a signal to the controller, and the controller judges that there is fluctuation in the air-liquid interface, thereby controlling the liquid level sensor 2 to be inactive or filtering out the liquid level data acquired by the liquid level sensor 2 at this time.
If the air-liquid interface is calm, the incident angle of the laser injected into the air-liquid interface is not changed, the refraction route of the laser in the residual liquid is unique, the position of the laser perceived by the photosensitive plate 4 is unique and kept unchanged, the photosensitive plate 4 transmits a signal to the controller, the controller determines the keeping time, if the position of the laser perceived by the photosensitive plate 4 is unchanged after 5 seconds, the controller can determine that the air-liquid interface is calm, so that the liquid level sensor 2 is controlled to work or/and obtain the liquid level data obtained by the liquid level sensor 2 at the moment, and accordingly the volume of the residual liquid is obtained according to the liquid level of the residual liquid obtained by the liquid level sensor 2 in the storage tank 1.
In summary, the laser emitter 3 emits laser and the photosensitive plate 4 senses the laser position, so that whether the liquid level of the liquid medicine is in a calm state can be timely and accurately judged, thereby improving the accuracy of the liquid level data acquired by the liquid level sensor 2 and effectively avoiding the liquid level data acquired by the liquid level sensor 2 from being liquid level data of fluctuation of the liquid level of the liquid medicine; and the efficiency of liquid medicine metering is improved, and the liquid medicine is prevented from being metered after standing for too long time.
Example 2
Further embodiments are presented which can be implemented on the basis of example 1.
In a feasible implementation mode, the controller is in signal connection with the management system in a wireless or signal line mode, the controller transmits the volume data of the analgesic pump residual liquid to the management system, and the management system performs liquid medicine quantity checking to realize closed-loop management of the dosage of the analgesic pump liquid medicine.
One possible implementation mode, the bottom of storage tank 1 is provided with sealed safety cover, and photosensitive web 4 assembles in the safety cover, and safety cover protection photosensitive web 4 avoids photosensitive web 4's sensitization position to be polluted by the liquid medicine.
In one possible embodiment, the number of the storage tanks 1 is plural, so that the residual liquid medicine amounts of a plurality of liquid medicines can be measured at one time, and the measurement efficiency of the residual liquid medicine amounts can be improved.
Example 3
Further embodiments are provided which can be implemented on the basis of any one of the embodiments 1-2.
In a feasible implementation mode, the liquid draining device comprises a liquid draining pipe 5 and a liquid drawing pump 8, one end of the liquid draining pipe 5 is communicated with the inside of the storage tank 1, the other end of the liquid draining pipe 5 is connected with the liquid drawing pump 8, and the liquid medicine in the storage tank 1 is completely drawn out through the liquid drawing pump 8 so as to prepare for the next analgesic pump liquid medicine allowance metering; the output end of the liquid pump 8 can be directly communicated with a sewer or other liquid medicine purifying devices to drain the harmless liquid medicine residue; and purifying the harmful residual liquid medicine.
The liquid discharge pipe 5 extends into the storage tank 1 and is communicated with the inside of the storage tank 1; the drain pipe 5 extends into the storage tank 1 in at least two embodiments as follows.
In the first embodiment, the liquid discharge pipe 5 bypasses the top of the storage tank 1 and then vertically extends into the bottom of the storage tank 1, and the liquid inlet of the liquid discharge pipe 5 is positioned at the bottom of the storage tank 1; this can avoid liquid from being stored in the liquid discharge pipe 5, and reduce the error in the measurement of the residual liquid.
In the second embodiment, a liquid outlet is formed in the bottom of the storage tank 1, and one end of the liquid outlet pipe 5 is connected with the liquid outlet; this way, the residual liquid in the storage tank 1 can be completely discharged.
A possible implementation mode is that a valve 6 is arranged on the liquid discharge pipe 5, and the valve 6 controls whether the residual liquid in the storage tank 1 is discharged or not; in the second embodiment, the valve 6 is provided at a position as close to or within the drain port as possible, and when the residual liquid is introduced into the storage tank 1, the amount of the residual liquid in the drain pipe 5 is reduced or avoided, and the influence of the drain pipe 5 on the measurement of the residual liquid is reduced. Of course, in the second embodiment, the remaining amount of the chemical solution in the liquid discharge pipe 5 and/or other irregular filling positions of the chemical solution may be constant, and the controller may be added thereto when calculating the remaining amount of the chemical solution.
Further, the valve 6 is an electromagnetic valve and is electrically connected with the controller; the liquid pump 8 is also connected with the controller, so that the opening and closing of the valve 6 can be directly controlled by the controller, the automation of the metering device is improved, and the manual labor is reduced; that is, after the remaining amount of the chemical solution in the storage tank 1 is measured, the controller opens the solenoid valve and the liquid pump 8 to automatically discharge the liquid in the storage tank 1.
In a possible implementation manner, when the number of the storage tanks 1 in the embodiment 2 is plural, each storage tank 1 may be connected with a liquid discharge pipe 5, all the liquid discharge pipes 5 are commonly connected with a main pipe 7, and the main pipe 7 is connected with a liquid pump 8, so as to achieve the purposes of respectively controlling and commonly discharging liquid, and improve the liquid discharge efficiency of the storage tank 1.
Example 4
On the basis of any one of the embodiments 1-3, a possible embodiment is further proposed.
A support rod is fixed on the storage tank 1, a code scanning gun 9 is supported on the support rod, the code scanning gun 9 is connected with an electric signal of a controller, the code scanning gun can scan and acquire information of an analgesic pump binding patient, the controller is in signal association with a management system, the patient, the dosage of the analgesic pump liquid medicine, the dosage and the allowance are associated, and closed-loop management of the analgesic pump medicine is formed.
The feasible implementation mode, be fixed with another bracing piece on the storage tank 1, support on the bracing piece and have camera 10, camera 10 and controller electrical signal connection, camera 10 is to the measurement of analgesia pump liquid medicine surplus, flowing back overall process and flowing back people control automatic shooting and are kept video or image data, accords with the treatment specification of analgesia pump medicine, makes things convenient for the normative management.
Example 5
A metering method, the metering device for metering the residual solution of the analgesic pump according to any one of the embodiments 1 to 4, comprising the following steps: starting a metering device, wherein a laser emitter 3, a liquid level sensor 2, a photosensitive plate 4, an electromagnetic valve, a liquid pump 8, a code scanning gun 9 and a camera 10 in the metering device obtain corresponding electric energy, and waiting for a working instruction;
s1: the controller controls the laser emitter 3 to emit laser, and the laser acts on the photosensitive plate 4; it can be checked in this way whether the laser emitter 3 can normally emit laser light, whether the photosensitive plate 4 can normally feel laser light, and whether the laser light emitted from the laser emitter 3 can act on the photosensitive plate 4.
Preferably, the laser emitter 3 irradiates the photosensitive plate 4 in a direction perpendicular to the photosensitive plate 4, and the photosensitive surface of the photosensitive plate 4 is parallel to the horizontal plane, so as to ensure that laser emitted by the laser emitter 3 is refracted after passing through a calm air-liquid medicine interface, and an action point can be stably positioned on the photosensitive plate 4; i.e. perpendicular incidence air-liquid medicine interface, the refraction angle is 0 deg..
S2: the liquid medicine is poured into the storage tank 1, and laser passes through the liquid medicine to be refracted and then acts on the photosensitive plate 4.
S3: as the liquid medicine is poured into the storage tank 1, the liquid level of the liquid medicine fluctuates, the incident angle of laser injected into the air-liquid interface can be changed continuously, and a plurality of different positions on the photosensitive plate 4 sense the laser; after pouring the liquid medicine, the liquid medicine is left stand until only one fixed position exists on the photosensitive plate 4 and the laser can be sensed (if the preferential scheme in the step 1 is adopted, the position of the photosensitive plate 4 which senses the laser is always before the liquid medicine is poured), and then the liquid medicine level in the storage tank 1 is calm.
S4: the photosensitive plate 4 sends the photosensitive state to a controller, and the controller controls the liquid level sensor 2 to work.
S5: the liquid level sensor 2 acquires the liquid level of the liquid medicine in the storage tank 1 and transmits the liquid level data of the liquid medicine to the controller.
S6: the controller obtains liquid level data of the liquid medicine, calculates the liquid medicine amount in the storage tank 1, and finishes metering the liquid medicine.
S7: after the metering is completed, the controller controls the electromagnetic valve to be opened, the liquid pump 8 works, and the liquid medicine in the storage tank 1 is discharged.
The invention is not limited to the specific embodiments described above. The invention extends to any novel one, or any novel combination, of the features disclosed in this specification, as well as to any novel one, or any novel combination, of the steps of the method or process disclosed.
Claims (9)
1. A metering device for metering an analgesic pump residual fluid, characterized by: comprises a storage tank (1) and a controller, wherein a liquid level sensor (2) is arranged in the storage tank (1); a laser emitter (3) capable of emitting laser is arranged at the top or above the storage groove (1), a photosensitive plate (4) capable of sensing the laser is arranged at the bottom of the storage groove (1), and the laser emitter (3) is positioned above the photosensitive plate (4); the laser transmitter (3), the liquid level sensor (2) and the photosensitive plate (4) are electrically connected or in signal connection with a uniform controller; the laser transmitter (3) emits laser, and the laser acts on the photosensitive plate (4); pouring the liquid medicine into the storage tank (1), and enabling laser to act on the photosensitive plate (4) after penetrating through the liquid medicine; as the liquid medicine is poured into the storage tank (1), the liquid level of the liquid medicine fluctuates, and a plurality of different positions on the photosensitive plate (4) sense laser; standing until only one fixed position exists on the photosensitive plate (4) and laser can be sensed, and the liquid level of the liquid medicine is calm; the photosensitive plate (4) sends the photosensitive state to a controller, and the controller controls the liquid level sensor (2) to work; the liquid level sensor (2) acquires the liquid level of the liquid medicine in the storage tank (1) and transmits liquid medicine level data to the controller; the controller obtains liquid level data of the liquid medicine, calculates the liquid medicine amount in the storage tank (1), and finishes metering the liquid medicine; the storage tank (1) is connected with a liquid discharge device for discharging the liquid medicine in the storage tank (1).
2. A metering device as claimed in claim 1, wherein: the bottom of the storage groove (1) is provided with a sealed protective cover, and the photosensitive plate (4) is assembled in the protective cover.
3. A metering device as claimed in any one of claims 1 to 2 wherein: the number of the storage tanks (1) is a plurality of.
4. A metering device as claimed in claim 3 wherein: the liquid draining device comprises a liquid draining pipe (5) and a liquid drawing pump (8), one end of the liquid draining pipe (5) is communicated with the inside of the storage groove (1), and the other end of the liquid draining pipe (5) is connected with the liquid drawing pump (8).
5. The metering device of claim 4, wherein: the bottom of the storage groove (1) is provided with a liquid outlet, and one end of the liquid outlet pipe (5) is connected with the liquid outlet.
6. A metering device as claimed in claim 5 wherein: the liquid discharge pipe (5) is provided with a valve (6), and the valve (6) is arranged in a position close to or in the liquid discharge port.
7. The metering device of claim 6, wherein: the valve (6) is an electromagnetic valve and is electrically connected with the controller.
8. A metering device as claimed in claim 1, wherein: the code scanning gun (9) is supported on the storage groove (1), and the code scanning gun (9) is connected with the controller through an electric signal.
9. A metering device as claimed in claim 1, wherein: the storage groove (1) is provided with a camera (10), and the camera (10) is connected with a controller through an electric signal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311747154.2A CN117433603B (en) | 2023-12-19 | 2023-12-19 | Metering device for metering analgesic pump residual liquid |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311747154.2A CN117433603B (en) | 2023-12-19 | 2023-12-19 | Metering device for metering analgesic pump residual liquid |
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| CN117433603B true CN117433603B (en) | 2024-02-27 |
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