Clinical automatic liquid preparation device
By designing an automated dispensing unit that includes a chassis, chuck, cap removal assembly, and sterilization assembly, the problem of time-consuming and labor-intensive preparation of intravenous infusion drugs in existing technologies has been solved. It achieves efficient and automated dispensing of multiple medicine bottles, avoiding drug contamination and the inconvenience of manual operation.
Patent Information
- Application Number
- CN202511459890.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-13
- Publication Date
- 2025-11-25
AI Technical Summary
In the existing technology, the preparation process of intravenous infusion drugs is time-consuming and labor-intensive, with low automation, easy to cause drug contamination, and cannot process multiple drugs in batches, resulting in high labor intensity.
An automated clinical dispensing device was designed, comprising a chassis, chuck, touch screen, barcode scanner, cap removal assembly, sterilization assembly, and multiple solvent containers. By scanning and entering information, the device automatically removes the dust caps from medicine bottles, sprays disinfectant, and automatically dispenses solutions using needles, enabling simultaneous dispensing of solutions from multiple medicine bottles.
It improves the automation of the solution preparation process, reduces manual operation, avoids drug contamination, and enables efficient solution preparation for multiple drug bottles, saving time and manpower.
Smart Images

Figure CN121003553A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of medical devices, in particular to a clinical automatic liquid preparation device. BACKGROUND
[0002] Intravenous infusion is a method of using hydrostatic pressure to drip a certain amount of liquid medicine into the vein, which is one of the important measures for clinical rescue and treatment of patients. For many years, when large-dose intravenous infusion of drugs is required, nursing staff uses manual operation to prepare drugs according to the traditional method of holding a piston syringe to extract the drug. This traditional preparation method frequently contacts the hands of nursing staff and is prone to contamination of the liquid medicine in the open space. In addition, chemotherapy drugs can cause great harm to the people who come into contact through respiratory, dietary and skin contact channels.
[0003] The prior art such as the publication No. CN109701420B discloses a semi-automatic liquid preparation device for neonatal intravenous nutrition, which comprises a workbench, a rotating mechanism installed on one side of the top surface of the workbench, a liquid preparation tank installed on the side of the top surface of the workbench away from the rotating mechanism, a suspension disc installed on the top of the rotating mechanism, a plurality of hooks evenly and equidistantly arranged on the bottom surface edge of the suspension disc, and a raw material containing device installed on each hook. The raw material containing device comprises a raw material containing box, a feeding pipe, a liquid infusion pump connected to the end of the feeding pipe away from the raw material containing box, and a first connecting head connected to the outlet end of the liquid infusion pump. The raw material containing device and the liquid preparation tank are connected through the pipe to realize closed preparation and sterile preparation. The liquid infusion pump can accurately calculate the dosage of the raw material to be prepared, and can control and display the dosage of the raw material to be prepared, so that the dosage of the raw material is accurate, and manpower and time are saved.
[0004] For example, the publication No. CN215877405U discloses a clinical drug liquid preparation device, which comprises a support box body, a rotating drug mixing device, a drug liquid heating disc, a drug liquid mixing barrel, a closed barrel cover, a transparent observation scale plate, a locking buckle, a buckle connecting block and a connecting block groove. The rotating drug mixing device comprises a driving motor, a rotating transmission shaft, a transmission gear, a speed reduction gear, a rotating driven shaft, a transmission shaft support, a driven shaft support and a rotating support disc. The present application belongs to the technical field of medical devices, and specifically relates to a clinical drug liquid preparation device, which effectively solves the problems of uneven distribution of various drug liquids caused by inconvenient stirring of the current clinical drug liquid preparation device and the inconvenience of heating the drug liquid caused by the lack of a heating device, achieves the purposes of convenient stirring of the clinical drug liquid preparation device to uniformly distribute various drug liquids and the convenience of heating the drug liquid caused by the lack of a heating device, and is a very practical clinical drug liquid preparation device.
[0005] In the prior art, the mixing of drugs is usually performed manually during dispensing. The specific mixing operation is as follows: the drug solution in the soft infusion bag or water for injection is manually extracted by a syringe and injected into a vial, and the vial contains powder injection, lyophilized powder injection or water injection, etc. During the mixing process, the vial needs to be repeatedly shaken manually until the drug in the vial is uniformly mixed. Finally, the drug solution in the vial is extracted by the syringe and injected into the soft infusion bag. Alternatively, the automatic liquid dispensing is performed, but the automatic degree is limited to the injection of a single drug bottle into a solvent for liquid dispensing, and it is impossible to inject a solvent into multiple drugs for liquid dispensing in batches. The above mixing process is time-consuming, labor-intensive and consumes a lot of materials such as syringes, and the working efficiency is low and the labor intensity is large. Moreover, the back and forth transfer of drugs by the syringe can easily cause secondary pollution. SUMMARY
[0006] The purpose of the present application is to provide a clinical automatic liquid dispenser to solve the above-mentioned problems in the prior art.
[0007] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme: a clinical automatic liquid dispenser, comprising a cabinet and a chuck for loading drug bottles beside the cabinet, one side of the cabinet is provided with a touch display screen and a bar code scanning port, a controller is installed in the cabinet, and an auxiliary mechanism is further provided, which comprises a cap removing assembly and a disinfecting assembly. The auxiliary mechanism is arranged on the side of the cabinet opposite to the chuck. The cap removing assembly is used for removing the plastic dustproof cap on the top of the drug bottle, and the disinfecting assembly is used for spraying medical disinfectant on the top of the drug bottle from which the dustproof cap is removed. A plurality of tank bodies containing different solvents are fixed on the cabinet, and a plurality of communication pipes corresponding to the tank bodies are in communication with the tank bodies. The controller controls the communication pipes corresponding to the different tank bodies to descend for liquid dispensing operation. A needle is used for inserting into the drug bottle after the cap is removed, and the needle is in one-to-one communication with the communication pipe.
[0008] Further, the chuck is rotatably connected to the cabinet by a driving source, the driving source is controlled by the controller, and the chuck has a plurality of placement holes for placing the drug bottles in an annular array. The placement holes are dampened and clamped to the drug bottles. A tray is fixedly connected to the cabinet below the chuck, and the tray abuts against the bottom of the drug bottle to support the drug bottle.
[0009] Further, the cap removing assembly comprises a slider vertically and slidably connected to the tray, the upper surface of the slider is a spherical surface, the bottom of the slider extends through the tray and is fixed with a first rack, a gear is rotatably connected to the cabinet, the first rack is engaged with the gear, the top of the first rack is fixedly connected with a pressing plate, and a second rack is further slidably connected to the cabinet, the second rack is engaged with the gear, and the top of the second rack is fixedly connected with a cap rod.
[0010] Further, the end of the cap rod is arc-shaped, and the arc surface of the cap rod is matched with the metal cap of the drug bottle.
[0011] Furthermore, an elastic element for slider reset is provided between the slider and the housing.
[0012] Furthermore, the disinfection component includes an atomizing nozzle, which is connected to the disinfectant tank inside the machine. The atomizing nozzle is positioned directly above the medicine bottle at the station after the cap removal component. It transmits a signal from an infrared sensor to the controller and then feeds back to spray disinfectant onto the top of the medicine bottle with the dust cap removed.
[0013] Furthermore, it also includes a limiting block that is fixedly connected to each needle in a one-to-one correspondence, and an electric push rod controlled by the controller is fixedly connected to the chassis, with the limiting block fixedly connected to the telescopic end of the electric push rod.
[0014] Furthermore, a discharge hole is provided on the tray at the station after the switching component, and a discharge track is provided below the discharge hole. The medicine bottles that have completed the liquid preparation operation slide along the discharge track into the waiting area.
[0015] In the above technical solution, the present invention provides a clinical automated dispensing device. During operation, the patient scans the barcode on their wristband at the scanning port to enter treatment information. Then, the patient places the medication bottle they received into the first empty position of the chuck. As the drive unit rotates the chuck, the cap removal component removes the dust cap from the top of the medication bottle. Subsequently, the disinfection component sprays medical alcohol onto the top of the medication bottle after the dust cap has been removed. The bottle then enters an idle position where the medical alcohol evaporates. It then enters the dispensing position, where the device feeds back the patient's barcode information to the controller. The controller then controls the needle at the corresponding solvent position to insert into the medication bottle for dispensing. The overall device has a high degree of automation and avoids the time-consuming and laborious manual injection of medication. Compared to simple automated dispensing devices that can only dispense medication from a single bottle, the multiple slots arrayed on the chuck of this application can dispense medication from multiple bottles simultaneously, making it highly efficient and time-saving. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.
[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0018] Figure 2 This is a schematic diagram of the overall structure from another perspective of the present invention;
[0019] Figure 3 This is a schematic diagram of the medicine bottle and dust cap of the present invention;
[0020] Figure 4 This is a schematic diagram of the cover removal component of the present invention;
[0021] Figure 5 This is a schematic diagram of the gear of the present invention;
[0022] Figure 6 This is a schematic diagram of the slider of the present invention;
[0023] Figure 7 This is a schematic diagram of the discharge hole of the present invention.
[0024] Explanation of reference numerals in the attached figures:
[0025] 1. Chassis; 11. Display screen; 12. Barcode scanner; 2. Chuck; 21. Tray; 22. Placement hole; 23. Medicine bottle; 231. Dust cover; 3. Auxiliary mechanism; 31. Cap removal assembly; 311. Slider; 312. First rack; 313. Gear; 314. Second rack; 315. Pressure plate; 316. Top cover rod; 317. Tension spring; 32. Disinfection assembly; 321. Atomizing nozzle; 4. Tank; 41. Connecting pipe; 42. Needle; 43. Limit block; 44. Electric push rod; 5. Drive source; 51. Servo motor; 6. Discharge hole; 61. Discharge track. Detailed Implementation
[0026] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.
[0027] Please see Figures 1-7 This invention provides a clinical automated liquid preparation device, comprising a chassis 1 and a chuck 2 disposed next to the chassis 1 for loading medicine bottles 23. A touch screen display 11 and a barcode scanner 12 are mounted on one side of the chassis 1. A controller (not shown in the figure) is installed inside the chassis 1. It also includes an auxiliary mechanism 3, which includes a cap removal component 31 and a disinfection component 32. The auxiliary mechanism 3 is located on the side of the chassis 1 facing the chuck 2. The cap removal component 31 is used to remove the plastic dust cap 231 from the top of the medicine bottle 23. The disinfection component 32 is used to spray medical disinfectant onto the top of the medicine bottle 23 after the dust cap 231 has been removed. Multiple tanks 4 containing different solvents are fixed to the chassis 1, and connecting pipes are connected to each tank 4. The multiple tanks 4 can be filled with different saline or sugar solutions according to actual needs. The controller performs the liquid preparation operation by controlling the descent of the connecting pipes corresponding to different tanks 4. A needle 42 is used to insert into the capped medicine bottle 23 and is connected to each connecting pipe. Furthermore, the needle 42 is detachable and can be disassembled and replaced as needed. The needle 42 input uses positive pressure and sprays liquid in a dispersed manner, which facilitates the preparation and mixing of the drug solution.
[0028] In the above technical solution, during operation, the doctor's order information is scanned by aligning it with the barcode scanner 12, thereby recording the treatment information and automatically generating drug barcode information. The collected information can be verified through the drug barcode information. Then, the medicine bottle 23 that has been collected is placed into the first empty placement hole 22 of the chuck 2. As the driving component drives the chuck 2 to rotate, the cap removal component 31 removes the dust cover 231 on the top of the medicine bottle 23. Subsequently, the disinfection component 32 sprays medical alcohol on the top of the medicine bottle 23 after the dust cover 231 has been removed. After being purified, the medicine enters an idle station where the medical alcohol evaporates. Then, it enters the solution preparation station. The equipment feeds back the patient's barcode information to the controller, which controls the needle 42 at the corresponding solvent position to be inserted into the medicine bottle 23 to perform the solution preparation. The overall equipment has a high degree of automation and avoids the time-consuming and laborious manual injection of medicine. Compared with a simple automated solution preparer that can only perform solution preparation on a single medicine bottle 23, the multiple slots arrayed on the chuck 2 of this application can perform solution preparation on multiple medicine bottles 23 at the same time, which is efficient and time-saving.
[0029] The chuck 2 is rotatably connected to the chassis 1 via a drive source 5, which is controlled by a controller. The chuck 2 has a ring array of multiple placement holes 22 for placing medicine bottles 23. The placement holes 22 are damped and clamp the medicine bottles 23. A tray 21 is fixedly connected to the chassis 1 directly below the chuck 2. The tray 21 abuts against the bottom of the medicine bottle 23 to support the medicine bottle 23. In this embodiment, the drive source 5 is a servo motor 51. The rotation amplitude of the servo motor 51 is controlled by the controller. It rotates one station at a time, then pauses for several seconds until the medicine bottle 23 at the liquid preparation station completes the liquid preparation operation, and then the next work cycle rotation operation begins.
[0030] The cover removal assembly 31 includes a slider 311 slidably connected to the tray 21, the upper surface of which is spherical, the bottom of which extends through the tray 21 and is fixed with a first rack 312, a gear 313 rotatably connected to the housing 1, the first rack 312 meshing with the gear 313, a second rack 314 slidably connected to the housing 1, the second rack 314 meshing with the gear 313, and a top cover rod 316 fixedly connected to the top of the second rack 314.
[0031] The tray 21 is fixedly connected to the chassis 1. The chuck 2 rotates under the drive of the servo motor 51, and the chuck 2 drives multiple medicine bottles 23 that are clamped in the placement holes 22 to rotate. When the medicine bottle 23 enters the station where the cap removal component 31 is located, the bottom of the medicine bottle 23 first abuts against the spherical surface of the top of the slider 311. As the medicine bottle 23 continues to be moved by the chuck 2, the medicine bottle 23 pushes the slider 311 to slide down vertically along the spherical surface, thereby driving the pressure plate 315 to press the arc surface of the neck of the medicine bottle 23. It is worth mentioning that during the downward movement of the slider 311, the first rack 312 is driven to slide, and then the first rack 312 drives the gear 313 to rotate. The rotation of the gear 313 drives the second rack 314 to slide in the opposite direction to the first rack 312, that is, to slide vertically upward. During the vertical upward sliding of the second rack 314, the top cover rod 316 is driven to move upward, thereby lifting the dust cover 231 of the medicine bottle 23 and removing it from the medicine bottle 23.
[0032] In the top cover assembly, the end of the top cover rod 316 is arc-shaped, and the arc surface fits into the metal cap of the medicine bottle 23. As a result, the dust cover 231 will abut against the top cover rod 316 during the upward movement of the top cover rod 316. Before the top cover operation, the top cover rod 316 is close to the pressure plate 315. The top of the top cover rod 316 is below the bottom of the dust cover 231, and the bottom of the pressure plate 315 is above the arc surface of the neck of the medicine bottle 23.
[0033] An elastic element for resetting the slider 311 is provided between the slider 311 and the housing 1. In this embodiment, the elastic element is a tension spring 317. The tension spring 317 is used to reset the slider 311 after one cycle of the top cover operation. The slider 311 slides up, which drives the first rack 312 to slide up. Then the first rack 312 slides up, which drives the gear 313 to rotate. The gear 313 rotates, which drives the second rack 314 to slide down, thereby completing the reset of the top cover rod 316 and the pressure plate 315.
[0034] The disinfection component 32 includes an atomizing nozzle 321, which is connected to the disinfectant tank inside the chassis 1. The atomizing nozzle 321 is located directly above the medicine bottle 23 at the next station after the cap removal component 31. After the signal is transmitted to the controller through an infrared sensor, it sprays disinfectant onto the top of the medicine bottle 23 after the dust cover 231 has been removed.
[0035] The atomizing nozzle 321 is controlled by the controller. The atomizing nozzle 321 is located at a station after the cap removal assembly 31, and is located directly above the medicine bottle 23. In this embodiment, medical alcohol is selected as the disinfectant. Of course, other disinfectants can be selected to adapt to different working scenarios and specific drug and solvent types, all of which are within the scope of protection of this solution. It is worth mentioning that there are several idle stations (used for alcohol evaporation) between the station of the atomizing nozzle 321 and the nearest liquid dispensing station. The infrared sensor is used to detect whether there is a medicine bottle 23 at the station and feed the information back to the controller.
[0036] It also includes a limiting block 43 that is fixedly connected to each needle 42 in a one-to-one correspondence. An electric push rod 44 controlled by the controller is fixedly connected to the chassis 1. The limiting block 43 is slidably connected to the chassis 1 and fixedly connected to the telescopic end of the electric push rod 44. A discharge track 61 is provided at the position one station after the switching component. The medicine bottle 23 that has completed the liquid preparation operation slides along the track into the waiting area.
[0037] Based on the patient's barcode information, the type of solvent required by the patient is determined. Subsequently, after receiving the signal from the barcode scanner 12, the controller controls the corresponding electric push rod 44. The electric push rod 44 at the corresponding solvent position operates, driving the limit block 43 to move. The limit block 43 drives the needle 42 to move and insert it into the medicine bottle 23 after the dust cover 231 has been removed. The solution is then dispensed through the connecting tube 41. After the operation is completed, the medicine bottle 23 enters the discharge track 61 through the discharge hole 6, and the operation ends.
[0038] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A clinical automated solution dispensing device, characterized in that, The system includes a chassis (1) and a chuck (2) located next to the chassis (1) for loading medicine bottles (23). One side of the chassis (1) is equipped with a touch screen display (11) and a barcode scanner (12). The chassis (1) contains a controller and also includes: The auxiliary mechanism (3) includes a cap removal component (31) and a disinfection component (32). The auxiliary mechanism (3) is located on the side of the chassis (1) facing the chuck (2). The cap removal component (31) is used to remove the plastic dust cap (231) from the top of the medicine bottle (23). The disinfection component (32) is used to spray medical disinfectant on the top of the medicine bottle (23) after the dust cap (231) has been removed. Multiple tanks (4) containing different solvents are fixed on the chassis (1), and connecting pipes are connected to the tanks (4) one by one. The controller controls the lowering of the connecting pipes corresponding to different tanks (4) to carry out the liquid preparation operation. The needle (42) is used to insert into the medicine bottle (23) after the cap has been removed, and it is connected to the connecting tube one by one.
2. The automated clinical solution dispensing device according to claim 1, characterized in that, The chuck (2) is rotatably connected to the chassis (1) via a drive source (5). The drive source (5) is controlled by a controller. The chuck (2) has a ring array of multiple placement holes (22) for placing medicine bottles (23). The placement holes (22) are damped and clamp the medicine bottles (23). A tray (21) is fixedly connected to the chassis (1) directly below the chuck (2). The tray (21) abuts against the bottom of the medicine bottle (23) to support the medicine bottle (23).
3. The automated clinical solution dispensing device according to claim 2, characterized in that, The cover removal assembly (31) includes a slider (311) that is vertically slidably connected to the tray (21). Its upper surface is spherical, and its bottom extends through the tray (21) and is fixed with a first rack (312). A gear (313) is rotatably connected to the chassis (1). The first rack (312) meshes with the gear (313). A pressure plate (315) is fixedly connected to the top of the first rack (312). A second rack (314) is also slidably connected to the chassis (1). The second rack (314) meshes with the gear (313). A top cover rod (316) is fixedly connected to the top of the second rack (314).
4. The automated clinical solution dispensing device according to claim 3, characterized in that, The end of the top cover rod (316) is arc-shaped, and its arc surface fits the metal cap of the medicine bottle (23).
5. A clinical automated solution dispensing device according to claim 3, characterized in that, An elastic element for resetting the slider (311) is provided between the slider (311) and the housing (1).
6. The automated clinical solution dispensing device according to claim 1, characterized in that, The disinfection component (32) includes an atomizing nozzle (321), which is connected to the disinfectant tank inside the chassis (1). The atomizing nozzle (321) is located directly above the medicine bottle (23) at the next station after the cap removal component (31). After the signal is transmitted to the controller through an infrared sensor, it sprays disinfectant onto the top of the medicine bottle (23) after the dust cover (231) has been removed.
7. The automated clinical solution dispensing device according to claim 1, characterized in that, It also includes a limiting block (43) that is fixedly connected to each needle (42) in a one-to-one correspondence. An electric push rod (44) controlled by the controller is fixedly connected on the chassis (1). The limiting block (43) is fixedly connected to the telescopic end of the electric push rod (44).
8. A clinical automated solution dispensing device according to claim 1, characterized in that, The tray (21) located one station after the switching component has a discharge hole (6), and a discharge track (61) is provided below the discharge hole (6). The medicine bottle (23) that has completed the liquid preparation operation slides along the discharge track (61) into the waiting area.
Citation Information
Patent Citations
Semi-automatic dispensing device for intravenous nutrient solution for newborns
CN109701420B
Liquid preparation device for clinical medication
CN215877405U