Portable medicine dispensing device based on clinical pharmacy

Abstract

The invention relates to the technical field of clinical pharmacy, in particular to a clinical pharmacy-based convenient dispensing device which comprises a dispensing table and a plurality of medicine bottles, a dispensing box and a dispensing table are mounted on the dispensing table, and the interior of the dispensing box is divided into a liquid medicine cavity and a solid tablet cavity; a first limiting plate and a second limiting plate are arranged on the inner side wall of the liquid medicine cavity and the inner side wall of the solid tablet cavity respectively, a liquid medicine box is fixedly connected to the top of the first limiting plate, a pump assembly used for sucking liquid medicine is arranged in the liquid medicine box, and a gear assembly for changing the rotating speed according to different viscosities of liquid medicine sucked by the pump assembly is arranged on one side of the pump assembly. The gear assembly is coaxially and fixedly connected with a screening assembly used for screening solid tablets in a vibrating mode according to the rotating speed of the gear. The amplitude of solid tablet screening is changed according to different liquid medicine viscosities, the blocking rate during solid tablet screening is reduced while different liquid medicines are sucked, and the medicine dispensing efficiency and accuracy are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of clinical pharmacy, and particularly relates to a portable medicine dispensing device based on clinical pharmacy. Background Art

[0002] In the field of clinical pharmacy, medicine dispensing is a crucial link. Doctors prescribe prescriptions according to the specific conditions of patients, and pharmacists accurately prepare various medicines according to the prescribed dosages and ratios based on the prescriptions to ensure the safety and effectiveness of the medicines. However, the traditional medicine dispensing process often relies on manual operation, which is not only inefficient but also prone to errors. Therefore, it is particularly important to develop a device that can automatically and accurately complete the medicine dispensing task.

[0003] In the existing patent, the application publication number CN109718098A provides a portable medicine dispensing device based on clinical pharmacy, including a medicine dispensing box body. One side of the top end of the medicine dispensing box body is embedded with a medicine dispensing tabletop. One end of the medicine dispensing box body is embedded with a control switch. The other end of the medicine dispensing box body is connected with a push handle. The structure of the present invention is scientific and reasonable, and it is safe and convenient to use. Place the infusion bottle to be mixed with the bottle head facing up in the second medicine dispensing seat, and rotate the rotating plate to the fixed plate. Fix the rotating plate and the fixed plate through a buckle to fix the infusion bottle to be mixed, so that multiple kinds of liquid medicines can be dispensed at the same time. By the operation of the mixing motor, the first medicine mixing limiting plate and the second medicine mixing limiting plate can be driven to rotate. Combining the contact of the medicine mixing convex block and the medicine mixing top block, one end of the second medicine mixing limiting plate can be driven to rise, so as to drive the infusion bottle placed in the first medicine mixing limiting plate to move up and down, and the configured infusion bottle can be quickly mixed.

[0004] Although this invention improves the medicine dispensing efficiency to a certain extent, when sucking liquid medicines with different viscosities, it cannot automatically adjust the sucking speed and strength according to the viscosity of the liquid medicine, resulting in poor sucking effect and even possible damage to the medicines. In addition, when screening solid tablets in traditional medicine dispensing devices, due to the fixed amplitude, the tablets are easily blocked in the sieve holes, affecting the screening efficiency and accuracy. Therefore, a portable medicine dispensing device based on clinical pharmacy is proposed to provide a more efficient and accurate medicine dispensing solution for the field of clinical pharmacy. Summary of the Invention

[0005] To solve the above problems, the present invention provides a portable medicine dispensing device based on clinical pharmacy, which changes the amplitude of screening solid tablets according to different viscosities of liquid medicines, reduces the blockage rate during the screening of solid tablets while sucking different liquid medicines, and improves the medicine dispensing efficiency and accuracy.

[0006] To achieve the above object, the technical solution of the present invention is as follows: A portable medicine dispensing device based on clinical pharmacy, including a medicine dispensing table and several medicine bottles. A medicine dispensing box and a preparation table are installed on the medicine dispensing table. The medicine dispensing box is divided into a liquid medicine cavity and a solid tablet cavity. The inner side walls of the liquid medicine cavity and the solid tablet cavity are respectively provided with a first limiting plate and a second limiting plate. The first limiting plate and the second limiting plate respectively divide the liquid medicine cavity and the solid tablet cavity into a first medicine cavity and a second medicine cavity from bottom to top, and a third medicine cavity and a fourth medicine cavity. The inner bottom walls of the first medicine cavity and the third medicine cavity are respectively provided with a first medicine bottle rack and a second medicine bottle rack. The bottoms of the first medicine bottle rack and the second medicine bottle rack are both fixedly connected with a driving component for driving the first medicine bottle rack and the second medicine bottle rack to rotate. The driving component is signal-connected to a controller. A plurality of medicine bottle slots for placing medicine bottles are annularly opened in both the first medicine bottle rack and the second medicine bottle rack. Identification codes are pasted on the bottle bodies of the medicine bottles. The bottoms of the first limiting plate and the second limiting plate are respectively provided with a first clamping jaw component and a second clamping jaw component for sensing the medicine bottle identification code and clamping the medicine bottle. Both the first clamping jaw component and the second clamping jaw component are signal-connected to the controller; The top of the first limiting plate is fixedly connected with a liquid medicine tank. A pump component for sucking liquid medicine is arranged in the liquid medicine tank. The pump component is signal-connected to the controller. One end of the pump component extends into the first medicine cavity and is fixedly connected with the first clamping jaw component. A gear component for changing the rotation speed according to the different viscosities of the liquid medicine sucked by the pump component is arranged on one side of the pump component. A screening component for vibrating and screening solid tablets according to the gear rotation speed is coaxially fixedly connected to the gear component. An adsorption component for sucking solid tablets by negative pressure is arranged at the top of the fourth medicine cavity. The adsorption component is communicated with the screening component; The pump component is communicated with the preparation table, and the bottom of the screening component is communicated with the preparation table.

[0007] The technical principle of the above solution is as follows: When medicine needs to be taken, the controller sends a signal to the corresponding clamping jaw component, identifies the identification code on the bottle body of the medicine bottle through the first clamping jaw component and the second clamping jaw component, and clamps the specified medicine bottle to take the medicine. When liquid medicine needs to be sucked, the controller starts the pump component. The pump component generates suction through its internal mechanical structure, sucks the liquid medicine in the first medicine cavity into the liquid medicine tank, and converts it into a change in the rotation speed of the gear component through the pressure change generated when the liquid medicine flows in the pump component.

[0008] At the same time, the adsorption component at the top of the fourth medicine cavity sucks the screened solid tablets by negative pressure and sends them to the screening component. Through the change in the rotation speed of the gear component, the amplitude of the screening component can be changed. The vibration frequency and amplitude are automatically adjusted according to the viscosity of the liquid medicine. As needed, the adsorption component can be continuously operated to sequentially adsorb and release various solid tablets onto the preparation table to achieve the mixed preparation of various tablets.

[0009] The above solution has the following beneficial effects: 1. This solution realizes the automatic control of the entire dispensing process through the signal connection between the controller and the clamping jaw assembly, pump assembly, gear assembly and adsorption assembly. This not only reduces the tediousness of manual operation, but also significantly improves the accuracy and efficiency of dispensing. The application of identification codes makes the identification and use of medicine bottles more intelligent, avoiding drug confusion or errors caused by human factors. Through the clamping and release of the first clamping jaw assembly and the second clamping jaw assembly, the rapid use of drugs is achieved, which improves work efficiency.

[0010] 2. In this solution, the pump assembly and the gear assembly work together to enable the absorption of liquid medicines and the screening of solid tablets to be precisely controlled as needed. This ensures the accuracy of the ratio of liquid medicine to tablets during the dispensing process and improves the efficacy of the medicine; the speed of the gear assembly is automatically adjusted by the pressure change caused by the flow of liquid medicine in the pump assembly, thereby changing the amplitude of the screening assembly, achieving adaptability to liquid medicines of different viscosities and ensuring the stability of the dispensing process.

[0011] 3. This solution is not only suitable for the absorption of liquid drugs and the screening of solid tablets, but also realizes the mixed preparation of multiple tablets through the connection between the adsorption component and the preparation table. This meets the needs of different drug combinations in clinical pharmacy, improves the flexibility and applicability of the device, and can conveniently realize the sequential adsorption and release of multiple solid tablets by continuously operating the adsorption component, simplifying the preparation process and improving work efficiency.

[0012] Further, the first clamping jaw assembly includes a first telescopic tube fixedly connected to the bottom of the first limit plate, a first support is fixedly connected to the bottom of the first telescopic tube, and a plurality of first electric telescopic rods are fixedly connected between the first support and the first telescopic tube; A plurality of first claws are hinged on the first support, a liquid medicine barcode identifier is fixedly connected to the first support, a first sliding groove is opened on the first claws, a first wedge block is slidably fitted in the first sliding groove, a first spring is fixedly connected to the first wedge block, and one end of the first spring away from the first wedge block is fixedly connected to the first support.

[0013] Beneficial effects: 1. The first clamping jaw assembly can accurately identify the identification code on the medicine bottle through the liquid medicine barcode identifier on the first support. This ensures that only the correct medicine is clamped and taken, avoiding the possibility of drug confusion or error.

[0014] 2. The sliding fit of the first wedge in the first slide groove and the elastic action of the first spring together constitute the clamping force adjustment mechanism of the clamp. When the clamp is closed, the first wedge is squeezed by the medicine bottle and slides. Through the elastic force of the first spring, the clamp can tightly clamp the medicine bottle to prevent it from falling off during the process of sucking the medicine liquid or moving the medicine bottle.

[0015] 3. Through the coordinated action of the first telescopic tube and the first electric telescopic rod, the first support can be adapted to the access height of the medicine bottle, thereby increasing the flexibility and applicability of the first clamping jaw assembly.

[0016] Further, the second clamping jaw assembly includes a second telescopic tube fixedly connected to the bottom of the second limiting plate, a second support is fixedly connected to the bottom of the second telescopic tube, and a plurality of second electric telescopic rods are fixedly connected between the second support and the second telescopic tube; A plurality of second claws are hinged on the second support, a solid tablet barcode identifier is fixedly connected to the second support, a second slide groove is opened on the second claws, a second wedge block is slidably fitted in the second slide groove, a second spring is fixedly connected to the second wedge block, and one end of the second spring away from the second wedge block is fixedly connected to the second support.

[0017] Beneficial effects: The second clamping jaw assembly can accurately identify the identification code on the solid medicine bottle or medicine box through the solid tablet barcode identifier on the second support, especially when processing a variety of different solid medicines.

[0018] Furthermore, the driving components include a first servo motor fixedly connected to the bottom wall of the first medicine chamber and the third medicine chamber, and the output shaft of the first servo motor is coaxially fixedly connected to a transmission rod, and the transmission rod is respectively fixedly connected to the first medicine bottle rack and the second medicine bottle rack.

[0019] Beneficial effects: The first servo motor can realize precise rotation control of the transmission rod and the medicine bottle rack fixedly connected thereto, which ensures that the medicine bottle can be accurately rotated to a position that is easy for the clamping claw assembly to clamp when needed, thereby improving the accuracy and efficiency of medicine dispensing.

[0020] Furthermore, the pump assembly includes a medicine liquid chamber and a compensation chamber fixedly connected to the inner bottom wall of the medicine liquid tank, the side of the medicine liquid chamber away from the compensation chamber is connected to the piston chamber, the side of the piston chamber away from the medicine liquid chamber is provided with a second servo motor fixedly connected to the inner bottom wall of the medicine liquid tank, the output shaft of the second servo motor is coaxially fixedly connected to a rotating disk, a connecting rod is hinged on the surface of the rotating disk, and the end of the connecting rod away from the rotating disk is hinged to a first piston block located in the piston chamber, the top and bottom of the medicine liquid chamber are respectively provided with a liquid outlet and a liquid inlet, the liquid inlet is connected to a suction pipe, a duckbill one-way valve is fixedly connected to the connecting point between the liquid inlet and the suction pipe, the suction pipe passes through the first limit plate and is fixedly connected to the bottom of the first support, the liquid outlet is connected to a rubber tube, the inner wall of the rubber tube is provided with a spiral guide groove, and the rubber tube extends to the preparation table.

[0021] Beneficial effects: Through the precise control of the second servo motor, the linkage mechanism of the rotating disc and the connecting rod enables the precise movement of the first piston block within the piston cavity. When the first piston block moves within the piston cavity, the liquid medicine is sucked into the liquid medicine cavity, and the duckbill check valve prevents backflow. Subsequently, the liquid medicine is transported to the preparation table through the liquid outlet and the rubber tube, and the spiral diversion groove helps to reduce the turbulence and bubbles of the liquid medicine, improving the transportation efficiency.

[0022] Furthermore, a connecting rod is coaxially provided between the liquid medicine cavity and the compensation cavity. Third springs are respectively and coaxially fixedly connected to both ends of the connecting rod. The ends of the third springs away from the connecting rod are respectively fixedly connected to a second piston block located in the liquid medicine cavity and a third piston block located in the compensation cavity. A rack is fixedly connected to the side of the third piston block away from the third spring, and the rack meshes with the gear assembly.

[0023] Beneficial effects: According to the different viscosities of the extracted liquid medicine, the pressures exerted on the liquid medicine cavity are also different. When the viscosity of the liquid medicine is relatively high, the pressure within the liquid medicine cavity increases, thereby pushing the third piston block and the rack to move, achieving meshing with the gear assembly and adjusting the rotation speed of the gear assembly.

[0024] Furthermore, the gear assembly includes a planetary carrier, an outer gear ring, a sun gear, and a planetary gear set composed of a number of planetary gears. The bottom wall of the inner part of the liquid medicine tank is fixedly connected to a base. The outer gear ring is fixedly connected to the base. The sun gear is rotatably connected to the base. The planetary gears are respectively and rotatably meshed with the sun gear and the outer gear ring. Input shafts corresponding to the planetary gears one by one are provided on the planetary carrier. The planetary gears are coaxially and fixedly connected to the input shafts of the planetary carrier. The output shaft of the planetary carrier penetrates through the liquid medicine tank and extends into the fourth medicine cavity to be coaxially and fixedly connected to the screening assembly.

[0025] Beneficial effects: By the meshing of the rack and the sun gear, the rotation speeds of the planetary gears and the planetary carrier are further adjusted, achieving the effect of changing the amplitude of the screening assembly.

[0026] Furthermore, the screening assembly includes a rotating shaft and fixed frames symmetrically arranged and fixedly connected to the top of the second limiting plate. Vibration grooves are opened on the fixed frames. Fourth springs are fixedly connected to both the top and the bottom of the vibration grooves. The parts of the rotating shaft located within the vibration grooves are respectively sleeved with vibration blocks. The rotating shaft is rotatably connected to the vibration blocks. The top and the bottom of the vibration blocks are respectively fixedly connected to the fourth springs. A vibrating screen is also sleeved on the rotating shaft. A number of sieve holes are opened on the vibrating screen. A power shaft coaxially fixedly connected to the output shaft of the planetary carrier is provided within the rotating shaft. The power shaft is fixedly connected to the rotating shaft. A counterweight block with a one-third circumference is coaxially fixedly connected to the power shaft; A conveying channel is provided below the vibrating screen. One end of the conveying channel is fixedly connected to the fixed frame. The other end of the conveying channel penetrates through the fixed frame and the fourth medicine cavity and extends to the outside of the medicine preparation box.

[0027] Beneficial effects: The screening component can effectively screen and separate solid tablets through the sieve holes on the vibrating screen. When the planet carrier drives the power shaft to rotate, the uneven distribution of the counterweight blocks will generate periodic centrifugal force, which will in turn cause the vibration of the vibrating screen. This design ensures the stability and continuity of the screening process, avoiding poor screening effects or damage to the drugs caused by unstable vibration. By adjusting the rotational speed of the power shaft through the planet carrier, the vibration frequency and amplitude of the vibrating screen can be changed, preventing the accumulation and blockage of solid tablets caused by being under the same amplitude for a long time.

[0028] Furthermore, the adsorption component includes a power chamber fixedly connected to the top wall of the fourth drug chamber. A four-way valve is provided in the power chamber. The four-way valve is provided with a first liquid port and a second liquid port for connecting the rubber tube. The four-way valve is also provided with a first solid port and a second solid port. An adsorption tube is connected to the first solid port. The adsorption tube passes through the power chamber and the second limiting plate and extends into the third drug chamber and is fixedly connected to the bottom of the second support. A medicine spreading port is provided on the second solid port, and the medicine spreading port is located above the vibrating screen.

[0029] Beneficial effects: Through the design of the four-way valve, the adsorption component realizes the precise separation of the liquid medicine and solid drugs. The first liquid port and the second liquid port of the four-way valve can be respectively used to connect the rubber tube to suck in and discharge the liquid medicine from the power chamber. At the same time, the first solid port and the second solid port are respectively used to handle solid drugs. The first solid port is connected to the third drug chamber through the adsorption tube for adsorbing solid drugs. The medicine spreading port on the second solid port is located above the vibrating screen for precisely spreading the solid drugs on the vibrating screen for screening or mixing.

[0030] Furthermore, a solid medicine dispensing groove and a liquid medicine dispensing groove are respectively provided on the dispensing table. A solid tablet port is opened on the side wall of the dispensing box. The conveying channel passes through the solid tablet port and extends above the solid medicine dispensing groove; A solid tube holder is fixedly connected to the side wall of the dispensing box. The rubber tube passes through the dispensing box and the solid tube holder and extends above the liquid medicine dispensing groove.

[0031] Beneficial effects: The separate settings of the solid medicine dispensing groove and the liquid medicine dispensing groove enable different types of drugs (solid and liquid) to be clearly distinguished, avoiding confusion and misuse. The conveying channel passes through the solid tablet port and extends above the solid medicine dispensing groove, enabling the screened solid drugs to be directly and orderly conveyed into the solid medicine dispensing groove for subsequent processing. Similarly, the rubber tube passes through the dispensing box and the solid tube holder and extends above the liquid medicine dispensing groove, ensuring that the liquid medicine can be accurately and quickly conveyed into the liquid medicine dispensing groove. This design improves the efficiency and accuracy of drug conveyance.

[0032] The additional aspects and advantages of the present invention will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present invention. Description of the Drawings

[0033] Figure 1 Isometric schematic diagram of an embodiment of the portable medicine dispensing device based on clinical pharmacy of the present invention; Figure 2 Lateral sectional view schematic diagram of the liquid medicine tank of an embodiment of the portable medicine dispensing device based on clinical pharmacy of the present invention; Figure 3 Front sectional view schematic diagram of the fourth medicine chamber of an embodiment of the portable medicine dispensing device based on clinical pharmacy of the present invention; Figure 4 Of an embodiment of the portable medicine dispensing device based on clinical pharmacy of the present invention Figure 1 Enlarged schematic diagram of part A; Figure 5 Of an embodiment of the portable medicine dispensing device based on clinical pharmacy of the present invention Figure 1 Enlarged schematic diagram of part B.

[0034] The reference numerals in the accompanying drawings of the specification include: 1, medicine dispensing table; 2, preparation table; 3, solid medicine dispensing groove; 4, conveying channel; 5, liquid medicine dispensing groove; 6, rubber tube; 7, solid tube holder; 8, solid tablet opening; 9, medicine dispensing box; 10, sieve holes; 11, vibrating sieve; 12, power chamber; 13, adsorption tube; 14, fixing frame; 15, fourth medicine chamber; 16, liquid medicine tank; 17, second limiting plate; 18, first limiting plate; 19, first medicine bottle holder; 20, first medicine chamber; 21, first servo motor; 22, medicine bottle groove; 23, third medicine chamber; 24, second medicine bottle holder; 25, second medicine chamber; 26, base; 27, external gear ring; 28, planetary gear; 29, planet carrier; 30, sun gear; 31, rack; 32, compensation chamber; 33, third piston block; 34, third spring; 35, connecting rod; 36, second piston block; 37, liquid outlet; 38, liquid medicine chamber; 39, piston chamber; 40, first piston block; 41, connecting rod; 42, rotating disk; 43, liquid inlet; 44, vibrating groove; 45, fourth spring; 46, vibrating block; 47, power shaft; 48, rotating shaft; 49, counterweight block; 50, first telescopic tube; 51, medicine spreading opening; 52, second claw; 53, second wedge block; 54, second spring; 55, second electric telescopic rod; 56, second telescopic tube; 57, second support; 58, first claw; 59, first wedge block; 60, first spring; 61, liquid suction tube; 62, first support; 63, first electric telescopic rod. Detailed Embodiment

[0035] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] The following is further described in detail through specific implementation methods: Embodiment 1: As attached Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown: In the existing clinical pharmacy dispensing process, the use, identification and proportioning of drugs often rely on manual operation, which is not only inefficient but also prone to errors. Therefore, a convenient dispensing device based on clinical pharmacy is adopted, including a dispensing table 1 and a plurality of medicine bottles, and a dispensing box 9 and a preparation table 2 are installed on the dispensing table 1.

[0039] Traditional medicine dispensing devices lack orderly management when storing and retrieving medicines, which easily leads to medicine confusion. Therefore, the interior of the medicine dispensing box 9 is partitioned into a liquid medicine chamber and a solid tablet chamber. On the inner side walls of the liquid medicine chamber and the solid tablet chamber, a first limiting plate 18 and a second limiting plate 17 are respectively provided. The first limiting plate 18 and the second limiting plate 17 respectively partition the inner parts of the liquid medicine chamber and the solid tablet chamber into a first medicine chamber 20 and a second medicine chamber 25 from bottom to top, and a third medicine chamber 23 and a fourth medicine chamber 15. The design of separating solid tablets and liquid medicines enables the preparation of solid tablets and liquid medicines to be carried out separately, facilitating subsequent retrieval.

[0040] On the inner bottom walls of the first medicine chamber 20 and the third medicine chamber 23, a first medicine bottle rack 19 and a second medicine bottle rack 24 are respectively provided. At the bottoms of the first medicine bottle rack 19 and the second medicine bottle rack 24, a driving assembly for driving the rotation of the first medicine bottle rack 19 and the second medicine bottle rack 24 is fixedly connected. The driving assembly is signal-connected to a controller. By using the driving assembly to drive the first medicine bottle rack 19 and the second medicine bottle rack 24, when retrieving the prepared medicines, the driving assembly automatically rotates the first medicine bottle rack 19 and the second medicine bottle rack 24 to the designated position according to the instructions of the controller, facilitating subsequent retrieval. A number of medicine bottle slots 22 for placing medicine bottles are annularly formed in the first medicine bottle rack 19 and the second medicine bottle rack 24. Identification codes are pasted on the bottle bodies of the medicine bottles. At the bottoms of the first limiting plate 18 and the second limiting plate 17, a first jaw assembly and a second jaw assembly for sensing the medicine bottle identification codes and clamping the medicine bottles are respectively provided. The first jaw assembly and the second jaw assembly are both signal-connected to the controller.

[0041] The first jaw assembly includes a first telescopic tube 50 fixedly connected to the bottom of the first limiting plate 18. At the bottom of the first telescopic tube 50, a first support 62 is fixedly connected. Between the first support 62 and the first telescopic tube 50, a number of first electric telescopic rods 63 are fixedly connected.

[0042] A number of first supporting claws 58 are hinged on the first support 62, and a liquid medicine barcode identifier is fixedly connected to the first support 62. Since the traditional medicine dispensing device relies on manual scanning when identifying medicines, the efficiency is low. Therefore, by the synergistic effect of the first supporting claws 58 and the liquid medicine barcode identifier, the identification code on the medicine bottle can be automatically identified, and then it can be determined whether the medicine bottle with the identification code is the medicine to be taken. Taking the preparation of diabetes insulin as an example, when the insulin bottle rotates to the lower part of the first support 62 through the first medicine bottle rack 19, the controller starts the first electric telescopic rod 63 to drive the first support 62 to move downward, so that the first supporting claws 58 can stably hold the insulin bottle, and the identification code on the bottle body is scanned by the liquid medicine barcode identifier to confirm the medicine type. At the same time, since the traditional mechanical fixture only supports a single medicine bottle size, first sliding grooves are formed on the first supporting claws 58, first wedge blocks 59 are slidably matched in the first sliding grooves, first springs 60 are fixedly connected to the first wedge blocks 59, and one ends of the first springs 60 far away from the first wedge blocks 59 are fixedly connected to the first support 62. When the first supporting claws 58 hold the insulin bottle, the first supporting claws 58 are opened by the insulin bottle. At this time, the first wedge blocks 59 slide in the first sliding grooves along with the opening of the first supporting claws 58, thereby driving the first springs 60 to open. When the first supporting claws 58 hold the insulin bottle, due to the restoring force of the first springs 60, the first supporting claws 58 can stably hold the insulin bottle.

[0043] A liquid medicine tank 16 is fixedly connected to the top of the first limiting plate 18. A pump assembly for sucking liquid medicine is provided in the liquid medicine tank 16. The pump assembly is in signal connection with the controller. The pump assembly includes a liquid medicine chamber 38 and a compensation chamber 32 fixedly connected to the inner bottom wall of the liquid medicine tank 16. A piston chamber 39 is communicated with one side of the liquid medicine chamber 38 away from the compensation chamber 32. A second servo motor fixedly connected to the inner bottom wall of the liquid medicine tank 16 is provided on one side of the piston chamber 39 away from the liquid medicine chamber 38. The output shaft of the second servo motor is coaxially and fixedly connected with a rotating disc 42. A connecting rod 41 is hinged on the surface of the rotating disc 42. One end of the connecting rod 41 away from the rotating disc 42 is hinged with a first piston block 40 located in the piston chamber 39. Liquid outlets 37 and liquid inlets 43 are respectively formed at the top and bottom of the liquid medicine chamber 38. A liquid suction pipe 61 is communicated with the liquid inlet 43. A duckbill check valve is fixedly connected to the connection between the liquid inlet 43 and the liquid suction pipe 61. The duckbill check valve at the liquid inlet 43 ensures that no air is inhaled during the suction process. The liquid suction pipe 61 penetrates through the first limiting plate 18 and is fixedly connected to the bottom of the first support 62. When the first claw 58 clamps the medicine bottle, the liquid suction pipe 61 enters the medicine bottle and is immersed in the liquid medicine, facilitating the subsequent suction of the liquid medicine. A rubber tube 6 is communicated with the liquid outlet 37. A spiral flow guiding groove is formed on the inner wall of the rubber tube 6, which can reduce the resistance of the liquid medicine during transportation and improve the transportation efficiency. The rubber tube 6 extends to the preparation table 2. During the process of sucking the liquid medicine, the rotating disc 42 is driven by the second servo motor, and the connecting rod 41 pushes the first piston block 40 to reciprocate. Due to the pressure change in the liquid medicine chamber 38, the liquid medicine can be sucked into the liquid medicine chamber 38 through the liquid suction pipe 61 and enter the rubber tube 6 through the liquid outlet 37.

[0044] Due to the difference in viscosity between different liquid medicines, the pressures exerted on the inside of the liquid medicine chamber 38 after entering the liquid medicine chamber 38 are different. Therefore, a gear assembly is provided on one side of the compensation chamber 32 to change the rotation speed by absorbing liquid medicines with different viscosities in the liquid medicine chamber 38. Insulin with a viscosity of 1 cP and simulated syrup with a viscosity of 5000 cP are extracted for comparison. A connecting rod 35 is coaxially provided between the liquid medicine chamber 38 and the compensation chamber 32. Third springs 34 are coaxially and fixedly connected to both ends of the connecting rod 35 respectively. The ends of the third springs 34 away from the connecting rod 35 are fixedly connected to a second piston block 36 located in the liquid medicine chamber 38 and a third piston block 33 located in the compensation chamber 32 respectively. When extracting insulin, due to the low viscosity of insulin, insulin flows smoothly in the liquid medicine chamber 38. Therefore, the pressure in the liquid medicine chamber 38 is small at this time, the resistance on the second piston block 36 is small, and the third spring 34 is not compressed. A rack 31 is fixedly connected to the side of the third piston block 33 away from the third spring 34. The rack 31 meshes with the gear assembly, and at this time, the gear assembly has a default transmission ratio. When extracting syrup, the relatively viscous syrup flows slowly in the liquid medicine chamber 38, causing the pressure in the liquid medicine chamber 38 to increase. At this time, the second piston block 36 is pushed, and power is transmitted through the compression of the third spring 34, causing the third piston block 33 to slide to the right in the compensation chamber 32, thereby pushing the rack 31 to move to the right, and the rack 31 meshes with the gear assembly.

[0045] The gear assembly includes a planetary gear set composed of a planet carrier 29, an external gear ring 27, a sun gear 30, and a number of planetary gears 28. The bottom wall of the liquid medicine tank 16 is fixedly connected with a base 26. The external gear ring 27 is fixedly connected to the base 26. The sun gear 30 is rotatably connected to the base 26. The planetary gears 28 are respectively rotatably meshed with the sun gear 30 and the external gear ring 27. Input shafts corresponding to the planetary gears 28 one by one are provided on the planet carrier 29. The planetary gears 28 are coaxially and fixedly connected to the input shafts of the planet carrier 29. The output shaft of the planet carrier 29 penetrates through the liquid medicine tank 16 and extends into the fourth medicine chamber 15 and is coaxially fixedly connected with a screening assembly for vibrating and screening solid tablets according to the rotation speed of the gears.

[0046] The second jaw assembly includes a second telescopic tube 56 fixedly connected to the bottom of the second limiting plate 17. A second support 57 is provided below the second telescopic tube 56. A number of second electric telescopic rods 55 are fixedly connected between the second support 57 and the second telescopic tube 56.

[0047] A number of second jaws 52 are hinged on the second support 57. A solid tablet barcode identifier is fixedly connected to the second support 57. Second chutes are respectively opened on the second jaws 52. Second wedges 53 are slidably fitted in the second chutes. Second springs 54 are fixedly connected to the second wedges 53. The ends of the second springs 54 away from the second wedges 53 are fixedly connected to the second support 57 respectively.

[0048] At the top of the fourth medicine chamber 15, there is an adsorption component for negatively adsorbing solid tablets. The adsorption component includes a power chamber 12 fixedly connected to the inner top wall of the fourth medicine chamber 15. A four-way valve is provided in the power chamber 12. The four-way valve is provided with a first liquid port and a second liquid port for communicating with the rubber tube 6. The four-way valve is also provided with a first solid port and a second solid port. An adsorption tube 13 is connected to the first solid port. The adsorption tube 13 passes through the power chamber 12 and the second limiting plate 17 and extends into the third medicine chamber 23 and is fixedly connected to the bottom of the second support 57. A medicine dispensing port 51 is provided on the second solid port. When taking solid tablets, the medicine bottle located in the fixed medicine rack is clamped by the second jaw assembly, and the tablets are adsorbed to the four-way valve through the adsorption tube 13 and released from the medicine dispensing port 51.

[0049] The screening component includes a rotating shaft 48 and fixed frames 14 fixedly connected to the top of the second limiting plate 17 and symmetrically arranged. Vibration grooves 44 are formed in the fixed frames 14. At the top and bottom of the vibration grooves 44, fourth springs 45 are fixedly connected. The parts of the rotating shaft 48 located in the vibration grooves 44 are sleeved with vibration blocks 46. The rotating shaft 48 is rotatably connected to the vibration blocks 46. The top and bottom of the vibration blocks 46 are respectively fixedly connected to the fourth springs 45. A vibrating screen 11 is also sleeved on the rotating shaft 48. A number of screening holes 10 are formed in the vibrating screen 11. A power shaft 47 coaxially fixedly connected to the output shaft of the planet carrier 29 is provided in the rotating shaft 48. The power shaft 47 is fixedly connected to the rotating shaft 48. A counterweight block 49 with a one-third circumference is coaxially fixedly connected to the power shaft 47. The medicine dispensing port 51 is located above the vibrating screen 11. According to the different viscosities of the extracted liquid medicine, when extracting high-viscosity syrup, the rack 31 meshes with the sun gear 30, causing the sun gear 30 to rotate, and then driving the planet gear 28 to rotate. As the planet carrier 29 rotates with the rotation of the planet gear 28, the output shaft of the planet carrier 29 drives the power shaft 47 to axially rotate. At this time, the counterweight block 49 rotates with the rotation of the power shaft 47. Whenever the counterweight block 49 rotates to the vertical lower part of the power shaft 47, the center of gravity of the power shaft 47 and the rotating shaft 48 moves downward, thereby compressing the fourth spring 45 located in the lower part of the rotating shaft 48. When the counterweight block 49 rotates to the vertical upper part of the power shaft 47, the fourth spring 45 located below the rotating shaft 48 resets. Through the reciprocating rotation of the power shaft 47 and the rotating shaft 48, the vibrating screen 11 vibrates up and down accordingly. Since the rotation speed of the output shaft of the planet carrier 29 decreases when extracting high-viscosity liquid medicine, the rotation speed of the power shaft 47 slows down. Therefore, the gravity accumulated when the counterweight block 49 rotates to the vertical lower part of the power shaft 47 increases, and the force accumulated by the fourth spring 45 increases, causing the amplitude of the vibrating screen 11 to automatically increase. When solid tablets enter the vibrating screen 11 from the medicine dispensing port 51, due to the fixed amplitude of the traditional vibrating screen 11, tablets with a large diameter will get stuck in the screening holes 10. Therefore, by changing the amplitude of the vibrating screen 11 when extracting liquid medicines with different viscosities, the screening efficiency of the vibrating screen 11 is improved, and the residue rate of solid tablets in the screening holes 10 is reduced.

[0050] Below the vibrating screen 11, there is a conveying channel 4. One end of the conveying channel 4 is fixedly connected to the fixed frame 14, and the other end of the conveying channel 4 penetrates through the fixed frame 14 and the fourth medicine chamber 15 and extends to the outside of the medicine dispensing box 9. The solid tablets screened by the vibrating screen 11 enter the subsequent preparation through the conveying channel 4, and continue to extract other solid tablets through the second jaw assembly and the suction tube 13 for mixing of multiple solid tablets. For example, when configuring a combination of insulin and glimepiride tablets for diabetic patients, since the viscosity of insulin is between 1 and 10 cP, belonging to a type of liquid medicine with a relatively low viscosity, at this time, the low-viscosity liquid medicine does not compress the third spring 34, and the transmission ratio of the planetary gear set is 1:1.5, thereby making the amplitude of the vibrating screen 11 relatively low. And glimepiride tablets belong to small-sized tablets with a diameter of 1 - 3 mm, which are easy to pass through the sieve holes 10 on the vibrating screen 11, and can effectively prevent glimepiride tablets from splashing out of the conveying channel 4 during vibration, resulting in waste of glimepiride tablets. On the contrary, if you want to configure syrup for children's fever reduction and paracetamol effervescent tablets, the viscosity of the syrup is 3000 - 5000 cP, and the viscosity of the liquid medicine is large, which in turn triggers an increase in the amplitude of the vibrating screen 11, and can shake off the large-sized paracetamol effervescent tablets with a diameter of 8 mm that are easily stuck in the sieve holes 10 into the conveying channel 4, preventing the paracetamol effervescent tablets from blocking the sieve holes 10 and affecting the operation of automatic medicine dispensing.

[0051] Embodiment 2: As shown in the Figure 1 accompanying drawings, the difference from Embodiment 1 is that in order to achieve precise rotation and positioning of the medicine bottle racks, the driving components both include a first servo motor 21 fixedly connected to the bottom walls of the first medicine chamber and the third medicine chamber. The output shafts of the first servo motors 21 are coaxially and fixedly connected with transmission rods, and the transmission rods are respectively fixedly connected to the first medicine bottle rack 19 and the second medicine bottle rack 24. When the medicine dispensing device is started and receives a medicine dispensing instruction, the controller first calculates the position of the medicine bottle rack that needs to be rotated according to the medicine information in the instruction, and the controller sends a rotation instruction to the corresponding first servo motor 21. After receiving the instruction, the first servo motor 21 starts to rotate at a preset acceleration, and drives the first medicine bottle rack 19 and the second medicine bottle rack 24 to rotate below the first jaw assembly and the second jaw assembly to wait for picking up.

[0052] Embodiment 3: As shown in the Figure 1 accompanying drawings, the difference from Embodiment 2 is that on the preparation table 2, there are respectively provided a solid medicine dispensing groove 3 and a liquid medicine dispensing groove 5. A solid tablet opening 8 is opened on the side wall of the medicine dispensing box 9, and the conveying channel 4 penetrates through the solid tablet opening 8 and extends above the solid medicine dispensing groove 3.

[0053] A fixed pipe holder 7 is fixedly connected to the side wall of the medicine dispensing box 9. The rubber tube 6 passes through the medicine dispensing box 9 and the fixed pipe holder 7 and extends above the liquid medicine dispensing tank 5. Through the conveying channel 4 and the rubber tube 6, the sucked solid tablets and liquid medicine can be sent into the solid medicine dispensing tank 3 and the liquid medicine dispensing tank 5 respectively for subsequent preparation.

[0054] Obviously, the above embodiments are only examples given for clear illustration and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A convenient drug dispensing device based on clinical pharmacy, comprising a drug dispensing table (1) and a plurality of drug bottles, characterized in that: A medicine dispensing box (9) and a preparation table (2) are installed on the medicine dispensing table (1). The inside of the medicine dispensing box (9) is divided into a liquid medicine chamber and a solid tablet chamber. The inner side walls of the liquid medicine chamber and the solid tablet chamber are respectively provided with a first limiting plate (18) and a second limiting plate (17). The first limiting plate (18) and the second limiting plate (17) respectively separate the inside of the liquid medicine chamber and the solid tablet chamber into a first medicine chamber (20) and a second medicine chamber (25) from bottom to top, and a third medicine chamber (23) and a fourth medicine chamber (15). The inner bottom walls of the first medicine chamber (20) and the third medicine chamber (23) are respectively provided with a first medicine bottle rack (19) and a second medicine bottle rack (21). A medicine bottle rack (24), wherein the bottom of the first medicine bottle rack (19) and the second medicine bottle rack (24) are fixedly connected with a driving assembly for driving the first medicine bottle rack (19) and the second medicine bottle rack (24) to rotate, the driving assembly signal is connected to a controller, the first medicine bottle rack (19) and the second medicine bottle rack (24) are both annularly provided with a plurality of medicine bottle slots (22) for placing medicine bottles, the bodies of the medicine bottles are affixed with identification codes, the bottoms of the first limiting plate (18) and the second limiting plate (17) are respectively provided with a first clamping claw assembly and a second clamping claw assembly for sensing the medicine bottle identification code and clamping the medicine bottle, and the first clamping claw assembly and the second clamping claw assembly are both connected to the controller signal; A liquid medicine box (16) is fixedly connected to the top of the first limit plate (18), and a pump assembly for sucking liquid medicine is provided in the liquid medicine box (16). The pump assembly is connected to the controller signal, and one end of the pump assembly extends into the first medicine chamber (20) and is fixedly connected to the first clamping jaw assembly. A gear assembly is provided on one side of the pump assembly for changing the rotation speed according to the viscosity of the liquid medicine sucked by the pump assembly. A screening assembly for vibrating and screening solid tablets according to the gear rotation speed is coaxially fixedly connected to the gear assembly. An adsorption assembly for negative pressure adsorption of solid tablets is provided at the top of the fourth medicine chamber (15), and the adsorption assembly is connected to the screening assembly. The pump assembly is connected to the preparation table (2), and the bottom of the screening assembly is connected to the preparation table (2).

2. The portable drug dispensing device based on clinical pharmacy according to claim 1, characterized in that: The first clamping jaw assembly comprises a first telescopic tube (50) fixedly connected to the bottom of the first limit plate (18), a first support (62) fixedly connected to the bottom of the first telescopic tube (50), and a plurality of first electric telescopic rods (63) fixedly connected between the first support (62) and the first telescopic tube (50); A plurality of first claws (58) are hingedly connected to the first support (62), a liquid medicine barcode identifier is fixedly connected to the first support (62), a first slide groove is formed on each of the first claws (58), a first wedge block (59) is slidably fitted in each of the first slide grooves, a first spring (60) is fixedly connected to each of the first wedge blocks (59), and one end of the first spring (60) away from the first wedge block (59) is fixedly connected to the first support (62).

3. The portable drug dispensing device based on clinical pharmacy according to claim 2, characterized in that: The second clamping jaw assembly comprises a second telescopic tube (56) fixedly connected to the bottom of the second limiting plate (17); a second support (57) is fixedly connected to the bottom of the second telescopic tube (56); and a plurality of second electric telescopic rods (55) are fixedly connected between the second support (57) and the second telescopic tube (56); A plurality of second claws (52) are hinged on the second support (57), a solid tablet barcode identifier is fixedly connected to the second support (57), a second slide groove is formed on each of the second claws (52), a second wedge block (53) is slidably fitted in each of the second slide grooves, a second spring (54) is fixedly connected to each of the second wedge blocks (53), and an end of the second spring (54) away from the second wedge block (53) is fixedly connected to the second support (57).

4. The portable drug dispensing device based on clinical pharmacy according to claim 3, characterized in that: The driving components each comprise a first servo motor (21) fixedly connected to the bottom wall of the first medicine chamber and the third medicine chamber, the output shaft of the first servo motor (21) being coaxially fixedly connected to a transmission rod, and the transmission rod being fixedly connected to the first medicine bottle rack (19) and the second medicine bottle rack (24), respectively.

5. The portable drug dispensing device based on clinical pharmacy according to claim 4, characterized in that: The pump assembly comprises a liquid medicine chamber (38) and a compensation chamber (32) fixedly connected to the inner bottom wall of the liquid medicine box (16); a side of the liquid medicine chamber (38) away from the compensation chamber (32) is connected to a piston chamber (39); a side of the piston chamber (39) away from the liquid medicine chamber (38) is provided with a second servo motor fixedly connected to the inner bottom wall of the liquid medicine box (16); an output shaft of the second servo motor is coaxially fixedly connected to a rotating disk (42); a connecting rod (41) is hingedly connected to the surface of the rotating disk (42); an end of the connecting rod (41) away from the rotating disk (42) is hingedly connected to a piston chamber (39) located in the piston chamber (39); 9), a first piston block (40) in the liquid chamber (38), a liquid outlet (37) and a liquid inlet (43) are respectively formed at the top and bottom of the liquid chamber (38), a liquid inlet (43) is connected to the liquid inlet (43), a duckbill type one-way valve is fixedly connected to the connection between the liquid inlet (43) and the liquid inlet (61), the liquid inlet (61) passes through the first limit plate (18) and is fixedly connected to the bottom of the first support (62), a rubber tube (6) is connected to the liquid outlet (37), a spiral guide groove is formed on the inner wall of the rubber tube (6), and the rubber tube (6) extends to the preparation table (2).

6. The portable drug dispensing device based on clinical pharmacy according to claim 5, characterized in that: A connecting rod (35) is coaxially provided between the liquid medicine chamber (38) and the compensation chamber (32); both ends of the connecting rod (35) are coaxially fixedly connected to a third spring (34); one end of the third spring (34) away from the connecting rod (35) is fixedly connected to a second piston block (36) located in the liquid medicine chamber (38) and a third piston block (33) located in the compensation chamber (32); a side of the third piston block (33) away from the third spring (34) is fixedly connected to a rack (31); the rack (31) is meshed with the gear assembly.

7. The portable drug dispensing device based on clinical pharmacy according to claim 6, characterized in that: The gear assembly comprises a planetary gear set consisting of a planet carrier (29), an outer gear ring (27), a sun gear (30) and a plurality of planetary gears (28); the inner bottom wall of the liquid medicine tank (16) is fixedly connected to a base (26); the outer gear ring (27) is fixedly connected to the base (26); the sun gear (30) is rotatably connected to the base (26); the planetary gears (28) are rotatably meshed with the sun gear (30) and the outer gear ring (27); the planetary carrier (29) is provided with input shafts corresponding to the planetary gears (28) one by one; the planetary gears (28) are coaxially fixedly connected to the input shaft of the planet carrier (29); and the output shaft of the planet carrier (29) penetrates the liquid medicine tank (16) and extends into the fourth medicine chamber (15) to be coaxially fixedly connected to the screening assembly.

8. The portable drug dispensing device based on clinical pharmacy according to claim 7, characterized in that: The screening assembly comprises a rotating shaft (48) and a fixed frame (14) fixedly connected to the top of the second limit plate (17) and symmetrically arranged, the fixed frame (14) is provided with a vibration groove (44), the top and bottom of the vibration groove (44) are fixedly connected to a fourth spring (45), the portion of the rotating shaft (48) located in the vibration groove (44) is sleeved with a vibration block (46), the rotating shaft (48) is rotationally connected to the vibration block (46), the top and bottom of the vibration block (46) are respectively fixedly connected to the fourth spring (45), a vibration screen (11) is sleeved on the rotating shaft (48), the vibration screen (11) is provided with a plurality of sieve holes (10), a power shaft (47) coaxially fixedly connected to the output shaft of the planetary carrier (29) is provided in the rotating shaft (48), the power shaft (47) is fixedly connected to the rotating shaft (48), and a counterweight block (49) coaxially fixedly connected to the power shaft (47) is one-third of the circumference; A conveying path (4) is provided below the vibrating screen (11), one end of the conveying path (4) being fixedly connected to the fixing frame (14), and the other end of the conveying path (4) passing through the fixing frame (14) and the fourth medicine chamber (15) and extending to the outside of the medicine dispensing box (9).

9. The portable drug dispensing device based on clinical pharmacy according to claim 8, characterized in that: The adsorption assembly comprises a power chamber (12) fixedly connected to the top wall of the fourth drug chamber (15), wherein a four-way valve is provided in the power chamber (12), wherein the four-way valve is provided with a first liquid port and a second liquid port for connecting to the rubber tube (6), and the four-way valve is also provided with a first solid port and a second solid port, wherein the first solid port is connected to an adsorption tube (13), the adsorption tube (13) passes through the power chamber (12) and the second limit plate (17), extends into the third drug chamber (23) and is fixedly connected to the bottom of the second support (57), and the second solid port is provided with a drug dispensing port (51), and the drug dispensing port (51) is located above the vibrating screen (11).

10. The portable drug dispensing device based on clinical pharmacy according to claim 9, characterized in that: A solid medicine dispensing trough (3) and a liquid medicine dispensing trough (5) are respectively provided on the dispensing table (2); a solid tablet opening (8) is opened on the side wall of the medicine dispensing box (9); and a conveying path (4) passes through the solid tablet opening (8) and extends to the top of the solid medicine dispensing trough (3); A pipe fixing frame (7) is fixedly connected to the side wall of the medicine dispensing box (9), and the rubber tube (6) passes through the medicine dispensing box (9) and the pipe fixing frame (7) and extends to the top of the liquid medicine dispensing tank (5).

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