A precision dosing medication system

Abstract

The application discloses a precise dose medicine preparation system, which comprises a medicine main container, a medicine preparation device, a micro pump, a weighing sensor and a computing module. The micro pump is used for pumping the medicine corresponding to the target weight in the medicine main container into the medicine preparation device according to the pump-in instruction generated by the computing module according to the target weight. The weighing sensor is used for collecting the weight information of the medicine in the medicine preparation device and sending the collected weight information to the computing module. The fine adjustment device is used for fine adjusting the weight of the medicine in the medicine preparation device according to the fine adjustment instruction sent by the computing module, so that the medicine preparation device stores the medicine with the precise target weight. The computing module is used for generating the pump-in instruction according to the patient information and the medicine preparation parameters input by a doctor and sending the pump-in instruction to the micro pump, and generating the fine adjustment instruction according to the weight information from the weighing sensor and sending the fine adjustment instruction to the fine adjustment device.

Description

Technical Field

[0001] This invention relates to the field of automated medical drug preparation technology, and in particular to a precise dosage drug preparation system. Background Technology

[0002] Currently, the clinical drug preparation field lacks integrated drug preparation systems designed for precise dosage. Existing solutions suffer from several pain points: manual drug dispensing is susceptible to operational and visual errors, resulting in low dosage accuracy, cumbersome processes, and susceptibility to human error; existing drug preparation tools are mostly single-specification compatible, requiring manual component replacement, making it difficult to balance multi-specification compatibility with ease of operation; existing automated drug dispensing equipment is mostly based on single-command dispensing, separating command and execution, and adaptation and control, and failing to integrate patient information and drug preparation information with automated dispensing, easily leading to dosage errors due to information gaps; furthermore, existing drug preparation systems are mostly designed for single scenarios and cannot adapt to the individualized and differentiated medication needs of multiple scenarios such as outpatient, emergency, pediatric / geriatric departments. In addition, the insufficient precision of existing drug dispensing equipment leads to inaccurate drug quantities, failing to meet the efficient and safe clinical requirements for precise drug preparation. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention provides a precise dosage drug preparation system.

[0004] This invention provides a precise dosage drug preparation system, comprising:

[0005] The main container for storing flowable pharmaceuticals;

[0006] A medicine preparation device for storing medicine from the main medicine container;

[0007] A micro-pump, with its inlet connected to the main drug container and its outlet connected to the drug preparation device, is used to pump the drug corresponding to the target weight from the main drug container into the drug preparation device according to the pumping command generated based on the target weight of the drug sent by the calculation module.

[0008] The weighing sensor installed under the medicine preparation device is used to collect the weight information of the medicine in the medicine preparation device and send the collected weight information to the calculation module.

[0009] A fine-tuning device is located below the medicine preparation device and is used to fine-tune the weight of the medicine in the medicine preparation device according to the fine-tuning instructions sent by the calculation module, so that the medicine preparation device contains a precise target weight of medicine.

[0010] The calculation module is used to generate a pumping command for driving the operation time of the micro-infusion pump based on the patient information and medication parameters input by the doctor, and send the pumping command to the micro-infusion pump; and to generate a fine-tuning command for controlling the fine-tuning mode of the fine-tuning device based on the weight information from the weighing sensor, and send the fine-tuning command to the fine-tuning device.

[0011] Preferably, the computing module includes:

[0012] The calculation unit is used to calculate the target weight of medication required by the patient based on the patient information and medication preparation parameters input by the doctor.

[0013] The micro-infusion pump control unit is used to generate a pumping command for the required operating time to drive the micro-infusion pump to pump the medication corresponding to the target weight from the main medication container into the medication preparation device, based on the target weight of medication required by the patient, and to send the pumping command to the micro-infusion pump.

[0014] The comparison unit is used to compare the weight information of the medicine in the medicine preparation device collected by the weighing sensor with the target weight of medicine required by the patient to obtain the weight difference of the medicine;

[0015] The fine-tuning device control unit is used to generate a fine-tuning instruction based on the difference in drug weight, which controls the fine-tuning device to adjust the fine-tuning method corresponding to the drug with a precise target weight stored in the drug preparation device, and sends the fine-tuning instruction to the fine-tuning device.

[0016] Preferably, the fine-tuning device includes:

[0017] A medicine collection tube is used to transport the medicine in the medicine preparation device to a medicine collection bag;

[0018] A throttling solenoid valve, located at the top of the drug collection tube and parallel to the bottom of the drug preparation device, is used to intermittently open or close according to the fine-tuning method in the fine-tuning instruction from the fine-tuning device control unit.

[0019] A medicine collection bag is used to collect the medicine corresponding to the weight difference when the weight difference of the medicine obtained by the comparison unit is greater than a preset threshold, so that the medicine preparation device contains medicine of a precise target weight.

[0020] Preferably, the comparison unit is specifically used to send the drug weight difference to the fine-tuning device control unit when the obtained drug weight difference is positive, and to send the drug weight difference to the micro-pump control unit when the obtained drug weight difference is negative.

[0021] Preferably, the micro-pump control unit is further configured to utilize the drug weight difference to generate a pumping command for the required operating time to drive the micro-pump to pump the drug corresponding to the absolute value of the drug weight difference from the main drug container into the drug preparation device, and to send the pumping command to the micro-pump.

[0022] Preferably, the fine-tuning device control unit is specifically configured to generate a fine-tuning instruction for controlling the fine-tuning device to adjust the first fine-tuning mode corresponding to the drug with a precise target weight stored in the drug preparation device when the drug weight difference is greater than a preset difference threshold, and to generate a fine-tuning instruction for controlling the fine-tuning device to adjust the second fine-tuning mode corresponding to the drug with a precise target weight stored in the drug preparation device when the drug weight difference is not greater than the preset difference threshold.

[0023] Preferably, the first fine-tuning command is to fully open the throttling solenoid valve; the second fine-tuning command is to partially open the throttling solenoid valve.

[0024] Preferably, it further includes:

[0025] A drug dispensing device located at the lower end of the drug preparation device is used to dispense the drug from the drug preparation device to the drug dispensing device.

[0026] A dispensing device for storing a precise target weight of medicine from the medicine preparation device.

[0027] Preferably, the computing module further includes:

[0028] The drug export control unit is used to generate an export command for controlling the drug export device to export the drug with the precise target weight stored in the drug preparation device to the drug dispensing device when the difference in drug weight obtained by the comparison unit is not greater than a preset threshold, and to send the export command to the drug export device.

[0029] Preferably, the drug dispensing device includes:

[0030] A drug outlet tube, one end of which is connected to the drug preparation device and the other end of which is connected to the drug dispensing device, is used to transport the drug in the drug preparation device to the drug dispensing device.

[0031] A solenoid valve located at the top of the drug dispensing tube and parallel to the bottom of the drug preparation device is used to open according to the output command from the drug dispensing control unit.

[0032] The beneficial effects of this invention are that, compared with manual drug dispensing and traditional automated drug dispensing technology, the dosage control accuracy is significantly improved, drug dispensing errors are greatly reduced, and the risk of clinical drug use errors is lowered; the information linkage system realizes data exchange and traceability throughout the drug dispensing process, standardizes the drug dispensing process, and improves drug preparation efficiency; it reduces manual intervention, reduces the labor intensity of medical staff in drug dispensing, and meets the core needs of precise, intelligent and standardized clinical drug preparation. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of a precise dosage drug preparation system provided by the present invention;

[0034] Figure 2 This is a schematic diagram of the non-exporting state of the fine-tuning device and the drug exporting device in the precise dosage drug preparation system provided by the present invention;

[0035] Figure 3 This is a schematic diagram of the export status of the fine-tuning device and the drug export device in the precise dosage drug preparation system provided by the present invention;

[0036] Figure 4 This is a schematic diagram of another setting of the fine-tuning device in the precise dosage drug preparation system provided by the present invention;

[0037] Figure 5 This is a schematic diagram of a precise dosage drug preparation system provided by the present invention;

[0038] Figure 6 This is a schematic diagram of specific modules of a precise dosage drug preparation system provided by the present invention. Detailed Implementation

[0039] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In the following description, suffixes such as "module," "part," or "unit" used to denote elements are used only for the purpose of illustrative purposes and have no inherent meaning. Therefore, "module," "part," or "unit" may be used interchangeably.

[0040] The following is combined Figures 1-6 The present invention provides a precise dosage drug preparation system, specifically, the system includes:

[0041] The main pharmaceutical container 2 is used to store the liquid pharmaceuticals; the main pharmaceutical container 2 can be hung on the ceiling 1 inside the room or on the wall inside the room.

[0042] The medicine preparation device 4 is used to store medicine from the main medicine container 2;

[0043] A micro-pump 3, with its inlet connected to the main medicine container 2 and its outlet connected to the medicine preparation device 4, is used to pump the medicine corresponding to the target weight from the main medicine container 2 into the medicine preparation device 4 according to the pumping command generated based on the target weight of the medicine sent by the calculation module. The micro-pump 3 is connected to the main medicine container 2 but separated from the medicine preparation device 4. This is to ensure that the weighing sensor 5 collects the weight of the medicine preparation device 4 and the medicine inside the medicine preparation device 4.

[0044] The weighing sensor 5 installed under the medicine preparation device is used to collect the weight information of the medicine in the medicine preparation device 4 and send the collected weight information to the calculation module.

[0045] The weighing sensor 5 is located on the base bracket 12. The base bracket 12 consists of a first bracket perpendicular to the ground and a second bracket parallel to the ground, and can be placed on a table or other flat surface.

[0046] A fine-tuning device is located below the medicine preparation device 4 and is used to fine-tune the weight of the medicine in the medicine preparation device 4 according to the fine-tuning instructions sent by the calculation module, so that the medicine preparation device 4 contains a precise target weight of medicine.

[0047] The calculation module is used to generate a pumping command for driving the operation time of the micro-pump 3 based on the patient information and medication parameters input by the doctor, and send the pumping command to the micro-pump 3; and to generate a fine-tuning command for controlling the fine-tuning mode of the fine-tuning device based on the weight information from the weighing sensor 5, and send the fine-tuning command to the fine-tuning device.

[0048] Furthermore, such as Figure 6 As shown, the computing module includes:

[0049] The calculation unit is used to calculate the target weight of medication required by the patient based on the patient information and medication preparation parameters input by the doctor.

[0050] For example: Heparin dose (U) = body weight (kg) * 100U / kg;

[0051] Protamine (mg) = Last heparin dose (U) ÷ 100;

[0052] Fentanyl (μg) = body weight (kg) × 3~5;

[0053] Propofol (mg) = body weight (kg) × 2 to 2.5.

[0054] The micro-infusion pump control unit is used to generate a pumping command for the required operating time to drive the micro-infusion pump 3 to pump the medication corresponding to the target weight from the main medication container into the medication preparation device 4, based on the target weight of medication required by the patient, and to send the pumping command to the micro-infusion pump 3.

[0055] The comparison unit is used to compare the weight information of the medicine in the medicine preparation device 4 collected by the weighing sensor 5 with the target weight of medicine required by the patient to obtain the weight difference of the medicine;

[0056] It should be noted that when the medication preparation device 4 is empty, its weight information is collected and sent to the calculation module. This is so that the calculation module needs to subtract the weight information of the medication preparation device 4 when calculating the weight information of the medication later. For example, when the weighing sensor 5 is empty, the weight information collected by the medication preparation device 4 is X1. After the micro-pump 3 pumps the corresponding medication from the main medication container 2 into the medication preparation device 4, the weight information of the medication in the medication preparation device 4 is collected as X2. Then, the calculation module considers the actual weight information of the medication in the medication preparation device 4 to be X2-X1, and uses the actual weight information of the medication as the weight information of the medication in the medication preparation device 4. That is, the actual weight information of the medication X2-X1 is compared with the target weight of medication required by the patient to obtain the medication weight difference.

[0057] The fine-tuning device control unit is used to generate a fine-tuning instruction based on the difference in drug weight, which controls the fine-tuning device to adjust the fine-tuning method corresponding to the drug with the precise target weight stored in the drug preparation device 4, and sends the fine-tuning instruction to the fine-tuning device.

[0058] like Figures 1-4 As shown, the fine-tuning device includes:

[0059] The medicine collection tube 7 is used to transport the medicine in the medicine preparation device 4 to the medicine collection bag;

[0060] The throttling solenoid valve 6, which is located at the top of the drug collection tube and parallel to the bottom of the drug preparation device 4, is used to intermittently open or close according to the fine-tuning method in the fine-tuning instruction from the fine-tuning device control unit.

[0061] The medicine collection bag 8 is used to collect the medicine corresponding to the weight difference of the medicine obtained by the comparison unit when the weight difference of the medicine is greater than a preset threshold, so that the medicine preparation device 4 contains medicine of a precise target weight.

[0062] Furthermore, the bottom end of the medicine preparation device 4 is constricted, such as... Figure 1-4As shown, to facilitate the complete extraction of the medicine inside, the fine-tuning device can be located at the bottom of the medicine preparation device 4, such as... Figure 1-3 As shown; it can also be located at the sub-bottom end of the medicine preparation device 4, such as... Figure 4 As shown. The lower section of the medicine preparation device 4 can also be designed with a similar arc shape, the purpose of which is to help the liquid shrink naturally under the action of gravity and reduce the amount of residue.

[0063] It should also be noted that the fine-tuning device may also include a drug collection tube 7, a manually operable flow regulator, and a drug collector 8.

[0064] In this embodiment of the application, the comparison unit is specifically used to send the drug weight difference to the fine-tuning device control unit when the obtained drug weight difference is positive, and to send the drug weight difference to the micro-pump control unit when the obtained drug weight difference is negative.

[0065] In this embodiment of the application, the micro-pump control unit is further configured to utilize the drug weight difference to generate a pumping command for the required operating time to drive the micro-pump 3 to pump the drug corresponding to the absolute value of the drug weight difference from the main drug container into the drug preparation device 4, and to send the pumping command to the micro-pump 3.

[0066] In this embodiment of the application, the fine-tuning device control unit is specifically used to generate a fine-tuning instruction for controlling the fine-tuning device to adjust the first fine-tuning mode corresponding to the medicine with the precise target weight stored in the medicine preparation device 4 when the difference in drug weight is greater than a preset difference threshold, and to generate a fine-tuning instruction for controlling the fine-tuning device to adjust the second fine-tuning mode corresponding to the medicine with the precise target weight stored in the medicine preparation device 4 when the difference in drug weight is not greater than the preset difference threshold.

[0067] In this embodiment of the application, the first fine-tuning command is to fully open the throttling solenoid valve; the second fine-tuning command is to partially open the throttling solenoid valve.

[0068] In this embodiment of the application, it also includes:

[0069] A medicine dispensing device located at the lower end of the medicine preparation device 4 is used to dispense the medicine in the medicine preparation device 4 to the medicine dispensing device.

[0070] A dispensing device is used to store a precise target weight of medicine stored in the medicine preparation device 4.

[0071] In this embodiment of the application, the computing module further includes:

[0072] The drug export control unit is used to generate an export command for controlling the drug export device to export the drug with the precise target weight stored in the drug preparation device 4 to the drug dispensing device when the difference in drug weight obtained by the comparison unit is not greater than a preset threshold, and to send the export command to the drug export device.

[0073] In this embodiment of the application, the drug dispensing device includes:

[0074] The medicine outlet tube has one end connected to the medicine preparation device 4 and the other end connected to the medicine dispensing device, and is used to transport the medicine in the medicine preparation device 4 to the medicine dispensing device.

[0075] The solenoid valve, located at the top of the drug dispensing tube and parallel to the bottom of the drug preparation device 4, is used to open according to the output command from the drug dispensing control unit.

[0076] It should be noted that the drug dispensing device is a common syringe or other instrument, the drug delivery tube is a flexible tube, and the inner diameter of the flexible tube matches the syringe port.

[0077] Furthermore, the drug dispensing device may also include a drug dispensing tube and a sealing film disposed at the bottom of the drug preparation device. When it is necessary to extract the drug from the drug preparation device, the syringe directly punctures the sealing film through the drug dispensing tube to obtain the drug.

[0078] Furthermore, the main drug container 2, drug preparation device 4, drug collection tube 7, drug collection bag 8, and drug dispensing device in this application are all disposable containers made of medical-grade polymer materials, mainly including polyvinyl chloride (PVC), non-PVC composite films (such as polypropylene and polyethylene), and multilayer co-extruded films (such as polyethylene and polyamide composite layers). These materials must possess characteristics such as non-toxicity, flexibility, good drug compatibility, and resistance to high-temperature sterilization to ensure safety and efficacy.

[0079] In summary, this application completely replaces manual, inefficient operations with automated, precise measurement, eliminating dosage errors and representing a core optimization for ensuring medical safety. Furthermore, it eliminates the need for customized accessories, allowing a single device to be compatible with multiple medication and medical device scenarios, reducing hardware investment and optimizing costs. The integrated drug and medical device information management system ensures complete retention of medication data, meeting medical quality control requirements and improving management efficiency. Finally, it simplifies operating procedures, reduces the workload of medical staff, and enhances user experience and medication dispensing efficiency.

[0080] The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, but this does not limit the scope of the invention. Any modifications, equivalent substitutions, and improvements made by those skilled in the art without departing from the scope and spirit of the present invention should be within the scope of the present invention.

Claims

1. A precise dosage drug preparation system, characterized in that, include: The main container for storing flowable pharmaceuticals; A medicine preparation device for storing medicine from the main medicine container; A micro-pump, with its inlet connected to the main drug container and its outlet connected to the drug preparation device, is used to pump the drug corresponding to the target weight from the main drug container into the drug preparation device according to the pumping command generated based on the target weight of the drug sent by the calculation module. The weighing sensor installed under the medicine preparation device is used to collect the weight information of the medicine in the medicine preparation device and send the collected weight information to the calculation module. A fine-tuning device is located below the medicine preparation device and is used to fine-tune the weight of the medicine in the medicine preparation device according to the fine-tuning instructions sent by the calculation module, so that the medicine preparation device contains a precise target weight of medicine. The calculation module is used to generate a pumping command for driving the operation time of the micro-infusion pump based on the patient information and medication parameters input by the doctor, and send the pumping command to the micro-infusion pump; and to generate a fine-tuning command for controlling the fine-tuning mode of the fine-tuning device based on the weight information from the weighing sensor, and send the fine-tuning command to the fine-tuning device.

2. The system according to claim 1, characterized in that, The computing module includes: The calculation unit is used to calculate the target weight of medication required by the patient based on the patient information and medication preparation parameters input by the doctor. The micro-infusion pump control unit is used to generate a pumping command for the required operating time to drive the micro-infusion pump to pump the medication corresponding to the target weight from the main medication container into the medication preparation device, based on the target weight of medication required by the patient, and to send the pumping command to the micro-infusion pump. The comparison unit is used to compare the weight information of the medicine in the medicine preparation device collected by the weighing sensor with the target weight of medicine required by the patient to obtain the medicine weight difference; The fine-tuning device control unit is used to generate a fine-tuning instruction based on the difference in drug weight, which controls the fine-tuning device to adjust the fine-tuning method corresponding to the drug with a precise target weight stored in the drug preparation device, and sends the fine-tuning instruction to the fine-tuning device.

3. The system according to claim 2, characterized in that, The fine-tuning device includes: A medicine collection tube is used to transport the medicine in the medicine preparation device to a medicine collection bag; A throttling solenoid valve, located at the top of the drug collection tube and parallel to the bottom of the drug preparation device, is used to intermittently open or close according to the fine-tuning method in the fine-tuning instruction from the fine-tuning device control unit. A medicine collection bag is used to collect the medicine corresponding to the weight difference when the weight difference of the medicine obtained by the comparison unit is greater than a preset threshold, so that the medicine preparation device contains medicine of a precise target weight.

4. The system according to claim 2, characterized in that, The comparison unit is specifically used to send the drug weight difference to the fine-tuning device control unit when the obtained drug weight difference is positive, and to send the drug weight difference to the micro-pump control unit when the obtained drug weight difference is negative.

5. The system according to claim 4, characterized in that, The micro-pump control unit is further configured to utilize the drug weight difference to generate a pumping command for the required operating time to drive the micro-pump to pump the drug corresponding to the absolute value of the drug weight difference from the main drug container into the drug preparation device, and to send the pumping command to the micro-pump.

6. The system according to claim 4, characterized in that, The fine-tuning device control unit is specifically configured to generate a fine-tuning instruction for controlling the fine-tuning device to adjust the first fine-tuning mode corresponding to the drug with a precise target weight stored in the drug preparation device when the drug weight difference is greater than a preset difference threshold, and to generate a fine-tuning instruction for controlling the fine-tuning device to adjust the second fine-tuning mode corresponding to the drug with a precise target weight stored in the drug preparation device when the drug weight difference is not greater than the preset difference threshold.

7. The system according to claim 6, characterized in that, The first fine-tuning command is to fully open the throttling solenoid valve; the second fine-tuning command is to partially open the throttling solenoid valve.

8. The system according to claim 2, characterized in that, Also includes: A drug dispensing device located at the lower end of the drug preparation device is used to dispense the drug from the drug preparation device to the drug dispensing device. A dispensing device for storing a precise target weight of medicine from the medicine preparation device.

9. The system according to claim 8, characterized in that, The computing module also includes: The drug export control unit is used to generate an export command for controlling the drug export device to export the drug with the precise target weight stored in the drug preparation device to the drug dispensing device when the difference in drug weight obtained by the comparison unit is not greater than a preset threshold, and to send the export command to the drug export device.

10. The system according to claim 8, characterized in that, The drug dispensing device includes: A drug outlet tube, one end of which is connected to the drug preparation device and the other end of which is connected to the drug dispensing device, is used to transport the drug in the drug preparation device to the drug dispensing device. A solenoid valve located at the top of the drug dispensing tube and parallel to the bottom of the drug preparation device is used to open according to the output command from the drug dispensing control unit.

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