Quantitative preparation device and quantitative preparation method for non-whole bagged injection

Abstract

The invention relates to the technical field of injection preparation, and particularly discloses a quantitative preparation device and quantitative preparation method.The quantitative preparation device comprises a machine body, a scanning device, a weighing device and a liquid extraction device.According to the quantitative preparation method, quantitative preparation of the injection is conducted in a weighing mode, the preparation process can be simplified, and the preparation efficiency is improved. Error links are reduced, and the allocation efficiency is improved; on the premise of ensuring the precision of the extraction and injection process, the original three steps of pure manual operation are changed into two steps, and the whole process can be completed only by weighing in advance and extracting redundant injection once by a machine, so that the time is shortened, and the efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of injection preparation, and particularly relates to a quantitative preparation device and a quantitative preparation method for non-whole-bag injections. Background Art

[0002] In medical institutions, there is generally a department for preparing intravenous injections, which is responsible for dispensing various injectable medications, such as sodium chloride injection, glucose injection, etc. Before preparation, a large number of bagged injections with rated capacities are usually purchased, such as bagged injections with capacities of 100 ml, 150 ml, 200 ml, etc.

[0003] In practical applications, injections often need to be used in non-whole-bag amounts. Taking a 100-ml bagged injection as an example, although these bagged injections are nominally 100 ml in volume, there may be certain deviations in the actual volume, which may be 101 ml, 102 ml, 103 ml, 104 ml, etc. The volume deviation is unknown, making it difficult for staff to quickly and accurately prepare bagged injections with the required volume.

[0004] Therefore, the existing technology still needs to be improved and developed. Summary of the Invention

[0005] In view of the above deficiencies of the prior art and in accordance with actual medical uses, the purpose of the present invention is to provide a quantitative preparation device and a quantitative preparation method for non-whole-bag injections, aiming to accurately prepare a non-whole-bag (bottle) solvent injection with a certain volume for subsequent use in compounding preparations, thereby solving the above problems.

[0006] A quantitative preparation device for non-whole-bag injections includes:

[0007] A machine body, in which a working area is provided;

[0008] A scanning device, which can be installed above the working area or above one side of the feeding conveyor line. The scanning device can use a CCD camera, and the imaging end of the CCD camera faces the working area. Each bagged injection is affixed with a prescription label, on which various data such as the type of injection, the nominal volume of the injection, the density of the injection, and the mass of the empty bag are printed. The prescription label also prints data codes such as barcodes and two-dimensional codes. When the bagged injection enters the working area, the CCD camera will scan and identify the data code of the bagged injection, thereby obtaining various data such as the type of injection, the nominal volume of the injection, the density of the injection, and the mass of the empty bag corresponding to the bagged injection;

[0009] Weighing device, the weighing device is arranged in the working area. The weighing device can adopt an electronic weighing scale, which mainly includes a precision weight sensor and a transmitter. The precision weight sensor adopts a strain gauge type weight sensor. Its working principle is to utilize the change in resistance of the strain gauge when stressed, and then convert it into a voltage signal through a Wheatstone bridge, and then cooperate with the transmitter to amplify, filter the voltage signal output by the strain gauge type weight sensor, and perform analog-to-digital conversion, and then convert it into a standard signal such as 4 - 20mA or a digital signal, so as to convert and obtain the corresponding mass information. Through the collaborative work of the precision weight sensor and the transmitter, the precise weighing of the bagged injection is realized;

[0010] Liquid extraction device, arranged in the working area. The liquid extraction device can adopt a suction pump device or a syringe. Both the suction pump device or the syringe are used to extract the liquid from the bagged injection; The highest precision of the suction pump device can reach 0.3ml. Connect the connector of the bagged injection in the working area to the liquid extraction tube of the suction pump device, and directly quantitatively extract the injection in the bagged injection through the suction pump device; When using the syringe, install the syringe at the output end of the telescopic driving device inside the machine body, and then insert the needle of the syringe into the connector of the bagged injection, and drive the syringe to quantitatively extract the injection in the bagged injection through the telescopic driving device.

[0011] Specifically, a disinfection device is also arranged in the working area. The disinfection device can adopt devices with sterilization functions such as an alcohol sprayer and an ultraviolet germicidal lamp, which are used to sterilize the bagged injection and the liquid extraction device. Especially for the liquid extraction device, when the liquid extraction device adopts a syringe, the needle of the syringe will be inserted into the bagged injection, and disinfection can avoid bacteria from entering the bagged injection.

[0012] Specifically, a conveying device is arranged in the working area. The conveying device includes a feeding conveyor line and a discharging conveyor line. The feeding conveyor line and the discharging conveyor line are spaced apart to form a weighing area. Both the feeding conveyor line and the discharging conveyor line adopt belt conveyor lines. The feeding conveyor line conveys the bagged injection to be prepared into the weighing area, the weighing device is installed in the weighing area, and the discharging conveyor line is used to convey the bagged injection that has completed quantitative preparation out of the area.

[0013] Specifically, a medical waste classification and recycling area is arranged at the bottom inside the machine body. There is at least one waste disposal opening communicating with the working area on the medical waste classification and recycling area. Bottles and cans, syringes or excess injections generated during the process of preparing pharmaceutical agents such as plastic bottles, metal bottles, and vials can enter the corresponding recycling bins in the medical waste classification and recycling area through the waste disposal opening, which is convenient for subsequent classification and treatment.

[0014] Specifically, at least one observation window is provided at the front end and the rear end of the machine body, facilitating the operator to observe the processing actions inside the machine outside the machine.

[0015] Specifically, a control device is further provided at the front end of the machine body. The control device includes a human-machine operation screen and a computer. Among them, the operation screen is for the operator to set and monitor daily parameters, and the computer is used for data storage, vision system monitoring, etc.

[0016] Specifically, an air purifier is further provided at the top of the working area. The air purifier can be turned on during the working process. The air purifier filters the air in the working area to ensure that the internal environment of the machine meets relevant standards.

[0017] A method for quantitatively preparing non-integral bagged injections includes the following steps:

[0018] S1 Determine the volume V1 of the injection required in the bagged injection to be prepared;

[0019] S2 Weigh the bagged injection containing the injection with a nominal volume of V2, and measure the total mass M1 of the bagged injection, where: V2≥V1;

[0020] S3 Determine the mass M2 of the empty bag, and calculate the actual mass M3 of the injection in the bagged injection, where: M3 = M1 - M2;

[0021] S4 Determine the density ρ1 of the injection, and calculate the actual volume V2 of the injection in the bagged injection, where: V2 = M3÷ρ1;

[0022] S5 Calculate the volume V3 of the excess injection that needs to be pumped out and quantitatively pump out the excess injection, where: V3 = V2 - V1;

[0023] S6 Complete the quantitative preparation of the bagged injection with a volume of V1.

[0024] Specifically, in step S2, transfer the bagged injection to the working area, and weigh the bagged injection by using the weighing device.

[0025] Specifically, in steps S3 and S4, scan the data code of the bagged injection through the scanning device to obtain various data of the bagged injection. The various data include the mass of the empty bag and the density of the injection.

[0026] Specifically, in step S5, pump out the excess injection through the liquid pumping device.

[0027] The beneficial effects of the present invention:

[0028] 1. The quantitative preparation device and method for non-integral bagged injections of the present invention perform quantitative preparation of injections by weighing, which can simplify the preparation process, reduce error-prone links, and improve the preparation efficiency; on the premise of ensuring the accuracy of the extraction and injection process, the original three-step pure manual operation is changed to two steps. The machine only needs to weigh in advance and can complete the whole process by extracting the excess injection once, shortening the time and improving the efficiency;

[0029] 2. Introduce the weighing measurement method to achieve accurate detection of the weight and volume of injections; in terms of detection, accurate weighing measurement brings great advantages, improving the accuracy and the reliability and certainty of the process; by weighing with a weighing device, the accuracy can reach ±10 mg; the machine accurately measures the bagged injection by weighing, making the weight and volume of the raw material known, and the discarded dose can be accurately calculated. The weighing accuracy is much higher than manual observation; the error and accuracy rate of the machine weighing the injection are of higher accuracy than the manual operation of the operator;

[0030] 3. Through the machine suction and injection operation, the operation process has a higher repeat accuracy than manual operation; the machine extracts and injects the injection, with a higher repeat accuracy than manual operation, achieving accurate medication. When manually operating the injection, accuracy deviation may be caused by problems such as attention or other subjective factors, and the process is difficult to monitor. However, the machine operation follows the controller program, and the mechanism performs precise actions, with a repeat accuracy much higher than that of manual operation; during the suction process, through the metering flow sensor, the accuracy can reach ±1 ml. Description of the Drawings

[0031] Figure 1 It is a schematic structural diagram of the quantitative preparation process of the bagged injection for Comparative Example 1;

[0032] Figure 2 It is a flowchart of the quantitative preparation process of the bagged injection for Comparative Example 1;

[0033] Figure 3 It is a front view of the quantitative preparation device for the bagged injection of Example 1;

[0034] Figure 4 For Figure 3 The sectional view along line A-A in

[0035] Figure 5 It is the general flowchart of the quantitative preparation method for the bagged injection of Example 1;

[0036] Figure 6 It is the specific flowchart of the quantitative preparation method for the bagged sodium chloride injection of Example 1;

[0037] Figure 7 It is a schematic internal structure diagram of the quantitative preparation device of Example 2;

[0038] Figure 8 It is a flowchart of the quantitative preparation method of the bagged glucose injection for Example 2.

[0039] The reference numerals are: machine body 10, working area 11, garbage classification and recycling area 12, garbage disposal opening 13, observation window 14, control device 15, electrical component installation cabinet 16, scanning device 20, weighing device 30, suction pump device 41, syringe 42, disinfection device 50, feeding conveyor line 61, discharging conveyor line 62, air purifier 70, bagged sodium chloride injection 80, data code 81, bagged glucose injection 82. Detailed implementation manners

[0040] The present invention provides a quantitative preparation device and a quantitative preparation method for non-whole-bag injections. To make the purpose, technical solution and effects of the present invention clearer and more definite, the following takes examples with reference to the accompanying drawings to further describe the present invention in detail. It should be understood that the specific examples described herein are only used to explain the present invention and are not used to limit the present invention.

[0041] In the description of the present invention, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0042] Comparative Example 1

[0043] Please refer to Figure 1 and Figure 2 , this comparative example discloses a traditional quantitative preparation method for non-whole-bag injections, which specifically includes the following steps:

[0044] A1 Define the preparation requirements:

[0045] Given an injection preparation prescription form, it is necessary to prepare 60 ml of sodium chloride injection from a bagged sodium chloride injection 80 with a nominal volume of 100 ml (for a nominal 100 ml injection, the actual volume may be 104 ml, and the operator cannot know and cannot achieve the accurate dose of 60 ml of injection remaining in the bag by the method of extracting 44 ml of the excess injection).

[0046] A2 Prepare the injection and equipment:

[0047] The staff obtains the bagged sodium chloride injection 80 with a nominal volume of 100 ml with the prescription form already attached, and manually takes out a 50 ml syringe 42.

[0048] A3 First extract the injection:

[0049] Manually use the first 50-ml syringe 42 to approximately draw 60 ml of sodium chloride injection solution (the maximum scale line of the 50-ml syringe 42 is 60 ml);

[0050] A4 Second injection solution extraction:

[0051] Then use the second 50-ml syringe 42 to manually draw out all the remaining sodium chloride injection solution, and then discard the second 50-ml syringe 42. Due to filling errors, the remaining sodium chloride injection solution may exceed 40 ml. This operation is to ensure that the bag is emptied;

[0052] A5 Re-injection:

[0053] Inject the 60 ml of sodium chloride injection solution drawn by the first 50-ml syringe 42 into the empty bag;

[0054] A6 Complete quantitative preparation:

[0055] Complete the quantitative preparation of 80 bags of 60-ml sodium chloride injection solution for subsequent preparation of other pharmaceuticals.

[0056] Example 1

[0057] As Figure 3 and Figure 4 , this example discloses a device for quantitatively preparing bagged sodium chloride injection solution, including a machine body 10, a scanning device 20, a weighing device 30, and a liquid extraction device. A working area 11 is provided inside the machine body 10.

[0058] The scanning device 20 is arranged in the working area 11. The scanning device 20 is used to scan and identify the data code 81 of the bagged sodium chloride injection solution 80; the scanning device can adopt a CCD camera, and the imaging end of the CCD camera faces the working area 11. Each bagged sodium chloride injection solution 80 is pre-stuck with a prescription label, and various data such as the type of injection solution, the nominal volume of the injection solution, the density of the injection solution, and the mass of the empty bag are printed on the prescription label. The prescription label also prints data codes such as barcodes and two-dimensional codes. When the bagged sodium chloride injection solution 80 enters the working area 11, the CCD camera will scan and identify the data code of the bagged sodium chloride injection solution 80, so as to obtain various data such as the type of injection solution, the nominal volume of the injection solution, the density of the injection solution, and the mass of the empty bag corresponding to the bagged sodium chloride injection solution 80.

[0059] The weighing device 30 is arranged in the working area 11. The weighing device 30 is used to weigh the bagged sodium chloride injection solution 80. The weighing device can adopt a weighing electronic scale, and the highest precision can reach 10 mg. The detection precision is high, which can improve the accuracy of subsequent medicine preparation.

[0060] The liquid extraction device is arranged in the working area 11. In this embodiment, the liquid extraction device adopts a suction pump device 41, and the suction pump device 41 is used for extracting liquid from the bagged sodium chloride injection 80. The highest precision of the suction pump device 41 can reach 0.3 ml. Connect the connector of the bagged sodium chloride injection 80 in the working area 11 to the liquid extraction pipe of the suction pump device 41, and directly quantitatively extract the injection liquid in the bagged sodium chloride injection 80 through the suction pump device 41. The liquid extraction efficiency is high, the liquid extraction precision is high, the error can be reduced, and the precision can be improved.

[0061] A disinfection device 50 is also arranged in the working area 11. The disinfection device 50 can adopt devices with sterilization functions such as an alcohol sprayer and an ultraviolet germicidal lamp, and is used for sterilizing and disinfecting the bagged sodium chloride injection 80 and the liquid extraction pipe of the suction pump device 41. After disinfection, bacteria can be prevented from entering the bagged sodium chloride injection 80.

[0062] A conveying device is arranged in the working area 11. The conveying device includes a feeding conveying line 61 and a discharging conveying line 62. The feeding conveying line 61 and the discharging conveying line 62 are spaced apart to form a weighing area, and the weighing device 30 is installed in the weighing area.

[0063] At the inner bottom of the machine body 10, there is a medical waste classification and recycling area 12. At least one waste disposal port 13 communicating with the working area 11 is arranged on the medical waste classification and recycling area 12. Bottles and cans, syringes or excess injection liquid generated during the preparation of pharmaceutical agents such as plastic bottles, metal bottles, and vials can enter the corresponding recycling bins in the medical waste classification and recycling area 12 through the waste disposal port 13, which is convenient for subsequent classification and treatment.

[0064] At least one observation window 14 is arranged at the front end and the rear end of the machine body 10, which is convenient for the operator to observe the processing actions inside the machine outside the machine.

[0065] A control device 15 is also arranged at the front end of the machine body 10. The control device 15 includes a human-machine operation screen and a computer. Among them, the operation screen is for the operator to set and monitor daily parameters, and the computer is used for data storage, vision system monitoring, etc.

[0066] An electrical component installation cabinet 16 is also arranged at the inner bottom of the machine body 10, which is used for installing electrical components such as a controller, a servo driver, and a low-voltage control component.

[0067] An air purifier 70 is also arranged at the top of the working area 11. During the working process, the air purifier 70 can be turned on to filter the air in the working area 11 by using the air purifier 70 to ensure that the internal environment of the machine meets relevant standards.

[0068] Please refer to Figure 5 , this embodiment also discloses a method for quantitatively preparing non-whole-bag injections, including the following steps:

[0069] S1 Determine the volume of the injection solution required in the bagged injection solution to be prepared;

[0070] S2 Weigh the bagged injection solution filled with the nominal volume of the injection solution to measure the total mass of the bagged injection solution;

[0071] S3 Determine the mass of the empty bag and calculate the actual mass of the injection solution in the bagged injection solution;

[0072] S4 Determine the density of the injection solution and calculate the actual volume of the injection solution in the bagged injection solution;

[0073] S5 Calculate the volume of the excess injection solution that needs to be pumped out and quantitatively pump out the excess injection solution;

[0074] S6 Complete the quantitative preparation of the bagged injection solution.

[0075] Please refer to Figure 6 , taking the bagged sodium chloride injection solution 80 as an example to further introduce the present application. This embodiment discloses a method for quantitatively preparing a bagged sodium chloride injection solution, including the following steps:

[0076] B1 Given the injection solution preparation prescription form, it is necessary to prepare 60 ml of sodium chloride injection solution from the bagged sodium chloride injection solution 80 with a nominal volume of 100 ml;

[0077] B2 Transfer the bagged sodium chloride injection solution 80 to the working area 11 through the feeding conveyor line 61;

[0078] B3 In the working area 11, use the weighing device 30 to weigh the bagged sodium chloride injection solution 80 to measure the total mass of the bagged sodium chloride injection solution 80 as 124.1 g;

[0079] B4 The scanning device 20 scans the data code 81 on the prescription label of the bagged sodium chloride injection solution 80. The data code 81 can be a barcode, a two-dimensional code, etc., so as to obtain various data of the bagged sodium chloride injection solution 80. Among the various data: the mass of the empty bag is 10.08 g, and the density (volume-mass conversion value) of the sodium chloride injection solution is 1.021 g / ml;

[0080] B5 According to the weight difference relationship (124.1 g - 18.08 g = 106.02 g), convert the actual mass of the sodium chloride injection solution in the bagged sodium chloride injection solution 80 to 106.02 g. According to the formula V = M÷ρ, calculate the actual volume of the sodium chloride injection solution in the bagged sodium chloride injection solution 80 as 103.84 ml, and calculate the volume of the sodium chloride injection solution that needs to be pumped out and discarded as 43.84 ml according to the volume difference relationship (103.84 ml - 60 ml = 43.84 ml);

[0081] In the B6 work area 11, a suction pump device 41 is used to directly extract 43.84 ml of the excess sodium chloride injection dose and discard it;

[0082] In the B7 bagged sodium chloride injection 80, the remaining volume of the sodium chloride injection is exactly 60 ml, which is a non - whole - bag dosage;

[0083] B8 Complete the quantitative preparation of 60 ml of sodium chloride injection with accurate dosage.

[0084] Please refer to Figure 5 , this embodiment also discloses a method for quantitatively preparing non - whole - bag injections, including the following steps:

[0085] S1 Determine the volume of the injection required in the bagged injection to be prepared;

[0086] S2 Weigh the bagged injection containing the injection with a nominal volume to measure the total mass of the bagged injection;

[0087] S3 Determine the mass of the empty bag and calculate the actual mass of the injection in the bagged injection;

[0088] S4 Determine the density of the injection and calculate the actual volume of the injection in the bagged injection;

[0089] S5 Calculate the volume of the excess injection that needs to be drawn out and quantitatively draw out the excess injection;

[0090] S6 Complete the quantitative preparation of the bagged injection.

[0091] Embodiment 2

[0092] Please refer to Figure 7 , the difference between the machine part of this embodiment and that of Embodiment 1 is that: the liquid extraction device uses a syringe 82. The syringe 82 is installed at the output end of the telescopic driving device inside the machine body 10, and then the needle of the syringe 82 is inserted into the connector of the bagged glucose injection 82, and the telescopic driving device is used to drive the syringe 82 to quantitatively extract the glucose injection in the bagged glucose injection 82.

[0093] Please refer to Figure 8 , taking the bagged glucose injection 82 as an example to further introduce this application. This embodiment discloses a method for quantitatively preparing bagged glucose injection, including the following steps:

[0094] C1 Given a prescription form for injection preparation, it is necessary to prepare 60 ml of glucose injection from a bagged glucose injection 82 with a nominal volume of 100 ml;

[0095] C2 Convey the bagged glucose injection 82 to the work area 11 through the feeding conveyor line 61;

[0096] In the working area 11, the weighing device 30 weighs the bagged glucose injection 82, and the total mass of the bagged glucose injection 82 is measured to be 114.39 g;

[0097] C4 The scanning device 20 scans the data code 81 on the prescription label of the bagged glucose injection 82. The data code 81 can be a barcode, a two-dimensional code, etc., so as to obtain various data of the bagged glucose injection 82. Among the various data: the mass of the empty bag is 8.15 g, and the density (volume-mass conversion value) of the sodium chloride injection is 1.04 g / ml;

[0098] C5 According to the weight difference relationship (114.39 g - 8.15 g = 106.24 g), the actual mass of the glucose injection in the bagged glucose injection 82 is converted to 106.24 g. According to the formula V = M÷ρ, the actual volume of the sodium chloride injection in the bagged glucose injection 82 is calculated to be 102.15 ml, and according to the volume difference relationship (102.15 ml - 60 ml = 42.15 ml), the volume of the glucose injection that needs to be drawn out and discarded is calculated to be 42.15 ml;

[0099] C6 In the working area 11, the suction pump device 41 is used to directly draw out 42.15 ml of the excess glucose injection dose and discard it;

[0100] C7 In the bagged glucose injection 82, the remaining volume of the glucose injection is the accurate non-whole-bag dosage of 60 ml;

[0101] C8 Complete the quantitative preparation of the accurate dosage of 60 ml of glucose injection.

[0102] The following Table 2 is a summary table of the various data in Examples 1-2:

[0103]

[0104] The above has specifically described the preferred embodiments of the present invention, but the present invention is not limited to the described embodiments. Those skilled in the art can also make various equivalent variations or substitutions without departing from the spirit of the present invention. For example, this embodiment is described for the soft-bag packaged injections commonly used in medical institutions, and some medical institutions commonly use bottle-packaged injections. For these common variations or substitutions of the injection packaging, the processing procedures and methods are very similar, almost the same, and these equivalent variations or substitutions are all included within the scope defined by the claims of the present invention.

Claims

1. A quantitative preparation device for non-full bag injection, characterized in that: include: A machine body (10), wherein a working area (11) is provided in the machine body (10); A scanning device (20), disposed in the working area (11), for scanning and identifying a data code (81) of a bagged injection solution; A weighing device (30), disposed in the working area (11), for weighing the bagged injection solution; A liquid extraction device is arranged in the working area (11) and is used for extracting liquid from the bagged injection solution.

2. A quantitative preparation device for non-full bag injection according to claim 1, characterized in that: A disinfection device (50) is also provided in the working area (11), and the disinfection device (50) comprises an alcohol sprayer and an ultraviolet sterilization lamp.

3. The quantitative preparation device for non-full bag injection according to claim 1, characterized in that: A conveying device is provided in the working area (11), the conveying device comprising an inlet conveying line (61) and an outlet conveying line (62), the inlet conveying line (61) and the outlet conveying line (62) are spaced apart to form a weighing area, and the weighing device (30) is installed in the weighing area.

4. The quantitative preparation device for non-full bag injection according to claim 1, characterized in that: A medical waste classification and recycling area (12) is provided at the bottom inner side of the machine body (10), and at least one waste disposal port (13) connected to the working area (11) is provided on the medical waste classification and recycling area (12).

5. The quantitative preparation device for non-full bag injection according to claim 1, characterized in that: An observation window (14) is provided at at least one of the front and rear ends of the machine body (10), and a control device (15) is also provided at the front end of the machine body (10).

6. The quantitative preparation device for non-full bag injection according to claim 1, characterized in that: An air purifier (70) is also provided on the top of the working area (11).

7. A quantitative preparation method for non-whole bag injection, characterized in that: The quantitative preparation device according to any one of claims 1 to 6 is used, comprising the following steps: S1 determining the volume of the injection solution required in the bagged injection solution to be prepared; S2 weighs the bagged injection solution containing the injection solution of the nominal volume to measure the total mass of the bagged injection solution; S3 determines the mass of the empty bag and calculates the actual mass of the injection solution in the bagged injection solution; S4 determines the density of the injection solution and calculates the actual volume of the injection solution in the bagged injection solution; S5 calculates the volume of the excess injection solution that needs to be drawn away and quantitatively draws away the excess injection solution; S6 completes the quantitative preparation of bagged injection solution.

8. The quantitative preparation method of a non-full bag injection according to claim 7, characterized in that: In step S2, the bagged injection solution is transferred to the working area (11), and the bagged injection solution is weighed using the weighing device (30).

9. The quantitative preparation method of a non-full bag injection according to claim 7, characterized in that: In steps S3 and S4, the data code (81) of the bagged injection is scanned by the scanning device (20) to obtain various data of the bagged injection, including the mass of the empty bag and the density of the injection.

10. The quantitative preparation method of a non-full bag injection according to claim 7, characterized in that: In step S5, the excess injection liquid is extracted by the liquid extraction device.

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