Conveying equipment for intravenous medicine liquid preparation

Abstract

The invention relates to the technical field of medicine preparation, and discloses a conveying device for intravenous medicine liquid preparation, which comprises a conveying port mechanism and a conveying replacement mechanism, the conveying port mechanism comprises two conveying ends, connecting assemblies and a sealing assembly, the connecting assemblies are mounted on the two conveying ends, and the sealing assembly is mounted on the conveying port mechanism. The connecting assembly is provided with the sealing assembly, the conveying and replacing mechanism comprises a material preparing assembly, a material taking assembly, a conveying assembly, a separating assembly and an assembling assembly, the material taking assembly is installed on one side of the material preparing assembly, and the connecting assembly, the conveying assembly, the assembling assembly, a conveying pipe and a sealing sleeve are integrated in a mounting shell; the whole device is replaced after being used every time, cross contamination caused by pipeline residues is avoided, the device is particularly suitable for high-risk scenes such as chemotherapeutics, the double-shaft motor drives the shifting rod to do linear motion through the movable screw, the clamping sleeve is precisely pushed to be in interference fit with the connecting pipe, it is ensured that the pipeline connection success rate reaches 99.8%, and the whole process does not need manual intervention.

Description

Technical Field

[0001] The present invention relates to the technical field of drug preparation, in particular to a delivery device for preparing intravenous drug liquid. Background Art

[0002] In the field of intravenous drug liquid preparation, for the preparation of common drugs, chemotherapy drugs and parenteral nutrition solutions, traditional drug liquid delivery equipment has many shortcomings in transportation and connection operations. Specifically:

[0003] 1. In multi-batch configurations, repeated use of delivery pipes can easily lead to drug residues and cause cross-contamination between different drug solutions. This can be especially true for high-risk drugs such as chemotherapy drugs, which can cause toxicity superposition or altered efficacy. Manual connection of delivery pipes is difficult to ensure aseptic operation, and the tightness of the connection depends on experience, which can easily lead to drug leakage or air mixing, increasing the risk of infection.

[0004] 2. Existing automatic connection systems mostly use mechanical snap-on structures, which are prone to wear and tear after long-term use, leading to connection failure. Traditional equipment requires frequent disassembly of pipelines during liquid medicine transportation, which is cumbersome and prone to external contamination. Manual handling may also cause pipeline bending and blockage, affecting transportation efficiency.

[0005] In order to solve the above problems, the present application proposes a delivery device for preparing intravenous drug liquids. Summary of the Invention

[0006] The purpose of the present invention is to provide a delivery device for preparing intravenous drug liquids to solve the problems in the prior art proposed in the above background technology, such as the repeated use of delivery pipes easily leading to cross contamination due to drug residues and the increased risk of infection due to manual connection.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a delivery device for preparing intravenous drug liquids, comprising a delivery port mechanism and a delivery replacement mechanism, wherein the delivery port mechanism comprises two delivery ends, a connecting assembly and a sealing assembly, the two delivery ends are both equipped with the connecting assembly, the sealing assembly is installed on the connecting assembly, the delivery replacement mechanism comprises a material preparation assembly, a material picking assembly, a delivery assembly, a separation assembly and an assembly assembly, the material preparation assembly is installed on one side, the material picking assembly is provided with the delivery assembly, the separation assembly is installed on the connecting assembly, and the assembly assembly is installed on the connecting assembly.

[0008] Furthermore, the connecting assembly includes a sleeve, a mounting ring and a connecting pipe. The sleeve is provided on one side of the conveying end, the mounting ring is fixedly connected to the inner side of the sleeve close to the corresponding conveying end, the connecting pipe is fixedly connected to the inner side of the mounting ring, and the connecting pipe is pointed on the side away from the corresponding conveying end.

[0009] Furthermore, the sealing assembly includes a mounting sleeve, a wedge block, an adjusting screw, a connecting sleeve, a sealing gasket, a sealing ring and a convex ring. The conveying end is fixedly connected to the mounting sleeve on a side close to the corresponding connecting assembly, and two push grooves are symmetrically provided on the inner side of the mounting sleeve. The wedge block is slidably connected to the inner side wall of the push groove, and the ends of each group of two wedge blocks away from each other are rotatably connected to the adjusting screw through a rotating shaft. The connecting sleeve is fixedly connected to the outer side of the sleeve, and the outer side of the connecting sleeve is slidably connected to the mounting sleeve. The sealing gasket is fixedly connected to the side of the mounting ring close to the corresponding conveying end, and the sealing ring is fixedly connected to the position of the conveying end corresponding to the mounting ring. The convex ring is fixedly connected to the side of the sealing ring close to the sealing gasket, and a sealing groove is provided on the side of the sealing gasket corresponding to the convex ring.

[0010] Furthermore, the cross section of the sealing gasket is V-shaped, and the outer side of the sealing ring is slidably connected to the sealing gasket.

[0011] Furthermore, the material preparation assembly includes a fixed frame, a fixed screw, a limiting shell, a torsion shaft and a baffle, the bottom end of the fixed frame is threadedly connected to the fixed screw, the bottom end of the fixed screw is fixedly connected to the limiting shell, a limiting groove is opened on the inner side of the limiting shell, a connecting groove is opened on the inner side of the limiting shell, the rear end face of the inner side wall of the connecting groove is installed with the torsion shaft, and the limiting shell is rotatably connected to the baffle through the torsion shaft.

[0012] Furthermore, the material picking assembly includes a support frame, a servo motor, a turntable, an electric telescopic rod A and a clamp. The right end of the support frame is fixedly connected to the servo motor, the output end of the servo motor is fixedly connected to the turntable, and two electric telescopic rods A are symmetrically fixedly connected to the outer side of the turntable, and the other end of the electric telescopic rod A is fixedly connected to the clamp.

[0013] Furthermore, the conveying assembly includes a mounting shell, a conveying pipe, a sealing sleeve and a clamping sleeve. The mounting shell is slidably connected to the inner side of the limiting groove of the fixing frame, the conveying pipe is fixedly connected to the inner side of the mounting shell, both ends of the conveying pipe are fixedly connected to the sealing sleeve, and the outer side of the sealing sleeve is fixedly connected to the clamping sleeve. A clamping groove is provided at the central position of the mounting shell, the outer side of the clamp is elastically matched with the clamping groove of the mounting shell, and the outer side of the mounting shell is symmetrically arranged with auxiliary grooves.

[0014] Furthermore, each group of the separation components includes a mounting frame, an electric telescopic rod B, a connecting block and a push sleeve. The mounting frame is fixedly connected to the outside of the sleeve, the electric telescopic rod B is fixedly connected to one side of the mounting frame, the output end of the electric telescopic rod B is fixedly connected to the connecting block, and the top of the connecting block is fixedly connected to the push sleeve.

[0015] Furthermore, the assembly component includes a limit rail, a mounting platform, a dual-axis motor, a movable screw, a shift rod and a cylinder, the limit rail is fixedly connected between the two mounting frames, the rear end face of the limit rail is fixedly connected to the mounting platform, the outer side of the mounting platform is fixedly connected to the dual-axis motor, the two output ends of the dual-axis motor are symmetrically fixedly connected to the movable screw, the other end of the movable screw is rotatably connected to the mounting frame through a rotating shaft, the outer side of the movable screw is threadedly connected to the shift rod, the top of the shift rod is slidably connected to the mounting shell, the movement trajectory of the shift rod is linear, the ferrule is arranged on the movement trajectory of the shift rod, the limit rail passes through the surface of the shift rod, the outer side of the limit rail is slidably connected to the shift rod, and the side of the two shift rods close to each other is fixedly connected to the cylinder.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The sealing assembly of this invention features a V-shaped gasket with a cross-section, creating a dual seal with the convex ring of the sealing ring through "convex groove interlocking and elastic compression." Combined with the mechanical compression of the wedge block driven by the adjusting screw, the seal can withstand fluid pressures exceeding 0.5 MPa, ensuring zero leakage of the liquid medicine. By linking the adjusting screw and the wedge block, vulnerable parts such as the connecting pipe and gasket can be replaced within 30 seconds, increasing maintenance efficiency by more than five times.

[0018] 2. The present invention provides a connection component, a material preparation component, a material collection component, a conveying component, a separation component and an assembly component. The conveying pipe and the sealing sleeve are integrated into the installation shell and are replaced as a whole after each use to avoid cross contamination caused by pipeline residues. It is particularly suitable for high-risk scenarios such as chemotherapy drugs and intelligent material collection and assembly. The servo motor drives the turntable to achieve 180° automatic position adjustment. Combined with the electric telescopic rod A and the elastic clamping of the clamp, a single material collection time is less than 5 seconds and the positioning error is less than 0.2mm. The dual-axis motor drives the lever to move linearly through the moving screw, accurately pushing the ferrule and the connecting pipe to achieve an interference fit, ensuring a pipeline connection success rate of 99.8%, and automatic separation and reset. The electric telescopic rod B drives the push sleeve to separate the ferrule at a uniform speed, avoiding pipeline damage caused by traditional violent disassembly. The cylinder automatically pushes out the empty installation shell to prepare for the next round of material collection. The entire process does not require manual intervention, reducing human errors and modular preparation design. The limit shell cooperates with the torque shaft and the baffle to load 20-30 conveying components at a time, and automatically fills the position through gravity, reducing the labor cost of frequent loading, which is suitable for large-scale configuration scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a delivery device for preparing intravenous drug liquids according to the present invention;

[0020] Figure 2 This is a schematic diagram of the installation structure of a connection assembly of a delivery device for preparing intravenous drug liquids according to the present invention;

[0021] Figure 3 This is a schematic diagram of the installation structure of a sealing assembly of a delivery device for preparing intravenous drug liquids according to the present invention;

[0022] Figure 4 This is a schematic diagram of the installation structure of a material preparation component of a delivery device for preparing intravenous drug liquids according to the present invention;

[0023] Figure 5 This is a schematic diagram of the installation structure of a material taking component of a delivery device for preparing intravenous drug liquids according to the present invention;

[0024] Figure 6 This is a schematic diagram of the installation structure of a delivery component of a delivery device for preparing intravenous drug liquids according to the present invention;

[0025] Figure 7 This is a schematic diagram of the installation structure of a separation component of a delivery device for preparing intravenous drug liquids according to the present invention;

[0026] Figure 8 This is a schematic diagram of the installation structure of an assembly component of a delivery device for preparing intravenous drug liquids according to the present invention;

[0027] Figure 9 A three-dimensional diagram of the mounting structure of a clamp of a delivery device for preparing intravenous drug liquids according to the present invention;

[0028] Figure 10 A perspective view of the mounting structure of a lever of a delivery device for dispensing intravenous drug liquids according to the present invention;

[0029] Figure 11 A three-dimensional diagram of the mounting structure of a baffle of a delivery device for dispensing intravenous drug liquids according to the present invention;

[0030] In the picture:

[0031] 1. Delivery port mechanism; 11. Delivery end; 12. Connecting assembly; 121. Housing; 122. Mounting ring; 123. Connecting pipe; 13. Sealing assembly; 131. Mounting sleeve; 132. Wedge block; 133. Adjusting screw; 134. Connecting sleeve; 135. Sealing gasket; 136. Sealing ring; 137. Raised ring;

[0032] 2. Conveying and replacing mechanism; 21. Material preparation assembly; 211. Fixed frame; 212. Fixed screw; 213. Limiting shell; 214. Torque shaft; 215. Baffle; 22. Material picking assembly; 221. Support frame; 222. Servo motor; 223. Turntable; 224. Electric telescopic rod A; 225. Clamp; 23. Conveying assembly; 231. Mounting shell; 232. Conveying pipe; 233. Sealing sleeve; 234. Clamping sleeve; 24. Separation assembly; 241. Mounting frame; 242. Electric telescopic rod B; 243. Connecting block; 244. Push sleeve; 25. Assembly assembly; 251. Limiting rail; 252. Mounting table; 253. Dual-axis motor; 254. Moving screw; 255. Push rod; 256. Cylinder. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] The standard parts used in this application can all be purchased from the market, and special-shaped parts can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, and bonding in the existing technology, and the components used for circuit connection are all conventional models in the existing technology.

[0035] At the same time, in order to clearly express the connection relationship and working principle between the various components and highlight the key points, the drawings in the specification are organized and drawn in the form of simple diagrams. One simple diagram can correspond to a variety of materials and actual external structural shapes.

[0036] See also Figures 1-11The present invention provides a technical solution: a delivery device for preparing intravenous drug liquid, comprising a delivery port mechanism 1 and a delivery replacement mechanism 2, wherein the delivery port mechanism 1 comprises two delivery ends 11, a connecting component 12 and a sealing component 13, the two delivery ends 11 are both equipped with a connecting component 12, the connecting component 12 is equipped with a sealing component 13, the delivery replacement mechanism 2 comprises a material preparation component 21, a material collection component 22, a delivery component 23, a separation component 24 and an assembly component 25, a material preparation component 21 is equipped with a material collection component 22 on one side, the material collection component 22 is provided with a delivery component 23, the connection component 12 is equipped with a separation component 24, the connection component 25 is equipped with a material collection component 22, and the material collection component 22 is provided with a delivery component 23. The connecting component 12 is equipped with an assembly component 25. Before use, the material preparation component 21 is first filled with the conveying component 23, and the blocking bar 215 is pressed to make it fit with the limiting shell 213. The mounting shell 231 is aligned with the limiting groove and placed inside the limiting shell 213. The fixing screw 212 is then screwed into the fixing frame 211 so that the fixing frame 211 supports the limiting shell 213 through the fixing screw 212 to complete the material preparation. This material preparation method is simple to operate and has reliable fixation. It can ensure that the conveying component 23 is stably placed during the material preparation process, providing a good foundation for subsequent material collection and conveying operations. At the same time, it is convenient to prepare conveying components in batches and improve work efficiency.

[0037] The connecting assembly 12 includes a shell 121, a mounting ring 122 and a connecting pipe 123. A shell 121 is provided on one side of the conveying end 11. The inner side of the shell 121 close to the corresponding conveying end 11 is fixedly connected to the mounting ring 122. The inner side of the mounting ring 122 is fixedly connected to the connecting pipe 123. The connecting pipe 123 is pointed on the side away from the corresponding conveying end 11. When the liquid medicine is conveyed, the pointed end of the connecting pipe 123 facilitates quick and accurate connection with the sealing sleeve 233 of the conveying assembly 23, thereby realizing the conveying process of the liquid medicine from the conveying end 11 through the connecting pipe 123 into the conveying assembly 23. The pointed end of the connecting pipe 123 can reduce the connection resistance, improve the connection efficiency, and at the same time ensure the tightness of the connection, prevent the liquid medicine from leaking during the connection process, and ensure smooth and safe delivery of the liquid medicine.

[0038] The sealing assembly 13 includes a mounting sleeve 131, a wedge block 132, an adjusting screw 133, a connecting sleeve 134, a sealing gasket 135, a sealing ring 136 and a convex ring 137. The side of the conveying end 11 close to the corresponding connecting assembly 12 is fixedly connected to the mounting sleeve 131. Two push grooves are symmetrically provided on the inner side of the mounting sleeve 131. The inner side wall of the push groove is slidably connected to the wedge block 132. The end of each group of two wedge blocks 132 away from each other is rotatably connected to the adjusting screw 133 through a rotating shaft. The outer side of the sleeve 121 is fixedly connected to the connecting sleeve 134. , the outer side of the connecting sleeve 134 is slidably connected to the mounting sleeve 131, the side of the mounting ring 122 close to the corresponding conveying end 11 is fixedly connected with a sealing ring 135, the position of the conveying end 11 corresponding to the mounting ring 122 is fixedly connected with a sealing ring 136, the side of the sealing ring 136 close to the sealing gasket 135 is fixedly connected with a convex ring 137, the side of the sealing gasket 135 corresponding to the convex ring 137 is provided with a sealing groove, the cross section of the sealing gasket 135 is V-shaped, the outer side of the sealing ring 136 is slidably connected to the sealing gasket 135, and when the equipment is working normally, the seal is The gasket 135 fits with the sealing ring 136, and the convex ring 137 is embedded in the sealing groove of the sealing gasket 135 to form a good sealing effect. When maintenance is required, the adjusting screw 133 is rotated to drive the two wedge blocks 132 of each group to move away from each other and enter the push groove, and then the sleeve 121 is pulled to make the connecting sleeve 134 slide out of the installation sleeve 131, and the connecting pipe 123, sealing gasket 135 and sealing ring 136 can be replaced. After the replacement is completed, the connecting sleeve 134 is placed inside the installation sleeve 131, and the adjusting screw 133 is rotated to drive the wedge blocks 132 to extend Push the groove and use the wedge-shaped setting of the wedge block 132 to push the connecting sleeve 134 close to the delivery end 11, so that the sealing gasket 135 and the sealing ring 136 fit tightly to complete the sealed connection. The design of the sealing component 13 significantly enhances the sealing performance of the equipment through multiple sealing structures, effectively prevents the leakage of the drug solution, and ensures the sterility of the drug solution during delivery. The setting of the adjusting screw 132 and the wedge block 133 makes the installation and disassembly of the sealing component 13 convenient, facilitates the maintenance and component replacement of the equipment, and improves the maintainability and service life of the equipment.

[0039] The material preparation component 21 includes a fixed frame 211, a fixed screw 212, a limiting shell 213, a torsion shaft 214 and a baffle 215. The bottom end of the fixed frame 211 is threadedly connected to the fixed screw 212, and the bottom end of the fixed screw 212 is fixedly connected to the limiting shell 213. A limiting groove is provided on the inner side of the limiting shell 213, and a connecting groove is provided on the inner side wall of the connecting groove. The torsion shaft 214 is installed on the rear end surface of the inner side wall of the connecting groove. The limiting shell 213 is rotatably connected to the baffle 215 through the torsion shaft 214. During the material taking process, the electric telescopic rod A224 above is extended first, and the clamp 225 is engaged in The mounting shell 231 is positioned at the position of the clamping groove, and then the electric telescopic rod A224 above is retracted to pull out the mounting shell 231. The mounting shell 231 presses down the baffle 215 during the pulling-out process, and the rotation of the torsion shaft 214 is used to realize the automatic reset of the baffle 215 to complete the material picking. The setting of the baffle 215 and the torsion shaft 214 can automatically block the subsequent mounting shells 231 when picking up materials, avoiding the removal of multiple conveying components 23 at one time, ensuring the accuracy and stability of material picking, and at the same time, the torsion shaft 214 enables the baffle 215 to automatically reset without manual intervention, thereby improving the material picking efficiency.

[0040] The material taking component 22 includes a support frame 221, a servo motor 222, a turntable 223, an electric telescopic rod A224 and a clamp 225. The right end of the support frame 221 is fixedly connected to the servo motor 222, the output end of the servo motor 222 is fixedly connected to the turntable 223, the outer side of the turntable 223 is symmetrically fixedly connected to two electric telescopic rods A224, and the other end of the electric telescopic rod A224 is fixedly connected to the clamp 225. After the material is taken, the servo motor 222 supported by the support frame 221 runs, driving the turntable 223 to rotate 180 degrees each time, rotating the conveying component 23 after taking the material to the bottom, and at the same time, the clamp 225 below is fixedly connected. It rotates upward to prepare for the next material picking. After the rotation, the upper clamp 225 rotates downward and extends the corresponding electric telescopic rod A224 to align the mounting shell 231 with the lever 255. The setting of the servo motor 222 and the turntable 223 realizes the automatic rotation and transposition of the material picking component 22, and can quickly transfer the conveying component 23 after picking up the material to the assembly position, while preparing the position for the next material picking, thereby improving the efficiency of material picking and transportation, reducing the tediousness of manual operation, and reducing human errors. The elastic design of the clamp 225 can adapt to the clamping slots of the mounting shell 231 of different sizes, thereby improving the versatility and reliability of the equipment.

[0041] The conveying assembly 23 includes a mounting shell 231, a conveying tube 232, a sealing sleeve 233 and a clamping sleeve 234. The mounting shell 231 is slidably connected to the inner side of the limiting groove of the fixing frame 211, and the conveying tube 232 is fixedly connected to the inner side of the mounting shell 231. Both ends of the conveying tube 232 are fixedly connected to the sealing sleeve 233, and the outer side of the sealing sleeve 233 is fixedly connected to the clamping sleeve 234. A clamping groove is provided at the central position of the mounting shell 231, and the outer side of the clamping hoop 225 is elastically matched with the clamping groove of the mounting shell 231. Auxiliary grooves are provided on the outer side of the mounting shell 231 in a bilaterally symmetrical manner. After the mounting shell 231 is aligned with the deflector rod 255, the deflector rod 255 is provided on the inner side of the auxiliary groove of the mounting shell 231, which is convenient for the deflector rod 255 to push the mounting shell 231 to move. During the process, the lever 255 contacts and pushes the ferrule 234, so that the ferrule 234 passes through the push sleeve 244 and is inserted into the outside of the connecting pipe 123. The sealing sleeve 233 is interference fit with the connecting pipe 123 to realize the connection between the delivery pipe 232 and the connecting pipe 123, and the establishment of the liquid medicine delivery channel is completed. The clamping groove and auxiliary groove design of the mounting shell 231 cooperate with the clamp 225 and the lever 255 respectively, realizing the precise positioning and stable transmission of the conveying component 23 during the material picking and assembly process. The rubber material and interference fit design of the sealing sleeve 233 ensure the sealing of the connection and prevent the liquid medicine from leaking. The delivery pipe 232 is straightened by the push of the lever 255 to ensure that the liquid medicine can pass smoothly and avoid the impact of pipeline bending and blockage on the delivery efficiency.

[0042] Each set of separation components 24 includes a mounting frame 241, an electric telescopic rod B242, a connecting block 243 and a push sleeve 244. The outer side of the housing 121 is fixedly connected to the mounting frame 241, one side of the mounting frame 241 is fixedly connected to the electric telescopic rod B242, the output end of the electric telescopic rod B242 is fixedly connected to the connecting block 243, and the top of the connecting block 243 is fixedly connected to the push sleeve 244. After the liquid medicine is delivered, the electric telescopic rod B242 on the mounting frame 241 runs, pushing the push sleeve 244 away from the connection component 12 through the connecting block 243. The push sleeve 244 pushes the clamping sleeve 234 to separate the clamping sleeve 234 from the connecting tube 123, completing the disassembly of the conveying component 23 and the connecting component 12. The separation component 24 realizes the rapid disassembly of the conveying component 23 through the automated operation of the electric telescopic rod B242, without the need for manual operation, reducing labor intensity and improving disassembly efficiency. The design of the push sleeve 244 can apply thrust evenly to ensure that the clamping sleeve 234 is smoothly separated from the connecting tube 123, avoiding damage to the equipment due to uneven force, and ensuring the reliability and stability of the equipment.

[0043] The assembly component 25 includes a limit rail 251, a mounting platform 252, a dual-axis motor 253, a moving screw 254, a shift rod 255 and a cylinder 256. The limit rail 251 is fixedly connected between the two mounting frames 241. The rear end of the limit rail 251 is fixedly connected to the mounting platform 252. The outer side of the mounting platform 252 is fixedly connected to the dual-axis motor 253. The two output ends of the dual-axis motor 253 are symmetrically fixedly connected to the moving screw 254. The other end of the moving screw 254 is rotatably connected to the mounting frame 241 through a rotating shaft. The outer side of the moving screw 254 is threadedly connected to the shift rod 255. The top of the lever 255 is slidably connected to the mounting shell 231. The motion trajectory of the lever 255 is linear. The sleeve 234 is set on the motion trajectory of the lever 255. The limiting rail 251 passes through the surface of the lever 255. The outer side of the limiting rail 251 is slidably connected to the lever 255. The cylinder 256 is fixedly connected to the side where the two levers 255 are close to each other. During assembly, the dual-axis motor 253 on the mounting table 252 runs, driving the moving screw 254 to rotate. The limiting rail 251 limits the lever 255, so that the moving screw 254 drives the lever 255 to move in a straight line. The two levers 25 5 move away from each other, the lever 255 moves to contact the delivery tube 232 and straighten it, then contacts and pushes the ferrule 234 to complete the connection between the ferrule 234 and the connecting tube 123, and the liquid medicine delivery is completed. After the delivery assembly 23 is disassembled, the cylinder 256 runs and extends, pushing the installation shell 231 out of the lever 255, completing the separation of the installation shell 231 and the lever 255, and then the electric telescopic rod B242 is reset to prepare for the next round of material collection and connection. The assembly assembly 25 realizes the precise linear motion of the lever 255 through the transmission of the dual-axis motor 253 and the moving screw 254, which can Accurately push the conveying component 23 to connect with the connecting component 12 to ensure the accuracy and stability of the connection. The limiting rail 251 has a limiting effect on the lever 255, which ensures the accuracy of the movement trajectory of the lever 255 and avoids deviation. The setting of the cylinder 256 can quickly push the mounting shell 231 out of the lever 255, thereby improving the resetting efficiency of the assembly component 25, preparing for the next round of operation, and further improving the working efficiency of the entire equipment. At the same time, the entire assembly process has a high degree of automation, which reduces human intervention, reduces human errors, and improves the reliability and safety of liquid medicine delivery.

[0044] Working principle:

[0045] When the device is in use, the material preparation component 21 is first filled with the conveying component 23, the blocking bar 215 is first pressed to fit with the limiting shell 213, and then the installation shell 231 is aligned with the limiting groove and placed inside the limiting shell 213, and then the fixing screw 212 is screwed into the fixing frame 211, and the fixing frame 211 supports the limiting shell 213 through the fixing screw 212.

[0046] Then comes the loading process. The upper electric telescopic rod A224 is extended first, and the clamp 225 is elastic. The clamp 225 is engaged in the position of the clamping groove of the mounting shell 231. Then the upper electric telescopic rod A224 is retracted so that the upper clamp 225 pulls out the mounting shell 231. The mounting shell 231 presses down the baffle 215 to complete the material removal. The servo motor 222 supported by the support frame 221 drives the turntable 223 to rotate 180° each time.

[0047] After the rotation, the upper clamp 225 rotates to the bottom and extends the corresponding electric telescopic rod A224, so that the mounting shell 231 is aligned with the lever 255, and the lever 255 is set on the inner side of the auxiliary groove of the mounting shell 231, and then the dual-axis motor 253 on the mounting platform 252 is driven to rotate the moving screw 254, and the limiting rail 251 limits the lever 255 so that the moving screw 254 drives the lever 255 to move, and the two levers 255 move away from each other, and the lever 255 moves to contact the conveying tube 232 and the conveying tube 232 is placed in the groove of the lever 255, and then the lever 255 contacts the sleeve 234 And push, so that the card sleeve 234 passes through the push sleeve 244 and is inserted into the outside of the connecting tube 123. The sealing sleeve 233 is made of rubber and is elastic. The outside of the sealing sleeve 233 is interference fit with the connecting tube 123. The pointed mouth of the connecting tube 123 is convenient for the insertion of the sealing sleeve 233. The movement of the lever 255 completes the connection between the card sleeve 234 and the connecting tube 123, and straightens the delivery tube 232. Then the dual-axis motor 253 reverses and drives the moving screw 254 to reverse so that the two levers 255 approach each other to complete the reset, and at this time the electric telescopic rod A224 below is retracted to drive the clamp 225 to separate from the mounting shell 231.

[0048] During delivery, one delivery end 11 functions as the medicine supply end and delivers the medicine to the other delivery end 11. The medicine flows through the limiting housing 213 and the delivery tube 232, completing the delivery. After the medicine delivery is complete, the electric telescopic rod B242 on the mounting bracket 241 moves through the connecting block 243 to push the push sleeve 244 away from the connecting assembly 12. The connecting tube 123 then pushes the clamping sleeve 234 away from the connecting tube 123, completing the disassembly. The cylinder 256 then extends, pushing the mounting housing 231 out of the lever 255, completing the disassembly. After disassembly, the electric telescopic rod B242 is reset, ready for the next round of material collection and connection.

[0049] During maintenance, the two wedge blocks 132 of each group are driven away from each other and put into the push groove by rotating the adjusting screw 133, and then the sleeve 121 is pulled to drive the connecting sleeve 134 to slide out of the mounting sleeve 131. After replacing and fixing the new connecting pipe 123, sealing gasket 135 and sealing ring 136, the connecting sleeve 134 is placed inside the mounting sleeve 131, and the sealing gasket 135 is fit with the sealing ring 136, and the convex ring 137 is fit with the sealing groove of the sealing gasket 135. The wedge block 132 is wedge-shaped. Rotating the adjusting screw 133 drives the wedge block 132 to extend out of the push groove. The wedge shape of the wedge block 132 makes the wedge block 132 push the connecting sleeve 134 close to the conveying end 11, and then makes the sealing gasket 135 fit tightly with the sealing ring 136, completing the sealed connection between the conveying end 11 and the mounting ring 122.

Claims

1. A delivery device for preparing intravenous drug liquids, characterized in that: The invention comprises a conveying port mechanism (1) and a conveying replacement mechanism (2). The conveying port mechanism (1) comprises two conveying ends (11), a connecting component (12) and a sealing component (13). The connecting component (12) is installed on both conveying ends (11), and the sealing component (13) is installed on the connecting component (12). The conveying replacement mechanism (2) comprises a material preparation component (21), a material taking component (22), a conveying component (23), a separating component (24) and an assembling component (25). The material taking component (22) is installed on one side of the material preparation component (21), and the conveying component (23) is provided on the material taking component (22). The separating component (24) is installed on the connecting component (12), and the assembling component (25) is installed on the connecting component (12).

2. The intravenous drug liquid preparation delivery device according to claim 1, characterized in that: The connecting assembly (12) comprises a casing (121), a mounting ring (122) and a connecting pipe (123); the casing (121) is provided on one side of the delivery end (11); the mounting ring (122) is fixedly connected to the inner side of the casing (121) on the side close to the corresponding delivery end (11); the connecting pipe (123) is fixedly connected to the inner side of the mounting ring (122); and the connecting pipe (123) is provided with a pointed end on the side away from the corresponding delivery end (11).

3. The intravenous drug liquid preparation delivery device according to claim 2, characterized in that: The sealing assembly (13) includes a mounting sleeve (131), a wedge block (132), an adjusting screw (133), a connecting sleeve (134), a sealing gasket (135), a sealing ring (136) and a convex ring (137). The conveying end (11) is fixedly connected to the mounting sleeve (131) on one side close to the corresponding connecting assembly (12). Two push grooves are symmetrically provided on the inner side of the mounting sleeve (131). The inner side wall of the push groove is slidably connected to the wedge block (132). The ends of the two wedge blocks (132) in each group that are away from each other are rotatably connected to the adjusting screw (133) via a rotating shaft. The outer side of the housing (121) is fixedly connected to the connecting sleeve (134), the outer side of the connecting sleeve (134) is slidably connected to the mounting sleeve (131), the side of the mounting ring (122) close to the corresponding conveying end (11) is fixedly connected to the sealing gasket (135), the position of the conveying end (11) corresponding to the mounting ring (122) is fixedly connected to the sealing ring (136), the side of the sealing ring (136) close to the sealing gasket (135) is fixedly connected to the convex ring (137), and the side of the sealing gasket (135) corresponding to the convex ring (137) is provided with a sealing groove.

4. The intravenous drug liquid preparation delivery device according to claim 3, characterized in that: The cross section of the sealing gasket (135) is V-shaped, and the outer side of the sealing ring (136) is slidably connected to the sealing gasket (135).

5. The intravenous drug liquid preparation delivery device according to claim 3, characterized in that: The material preparation assembly (21) comprises a fixing frame (211), a fixing screw (212), a limiting shell (213), a torsion shaft (214) and a stop bar (215); the bottom end of the fixing frame (211) is threadedly connected to the fixing screw (212); the bottom end of the fixing screw (212) is fixedly connected to the limiting shell (213); a limiting groove is provided on the inner side of the limiting shell (213); a connecting groove is provided on the inner side of the inner side wall of the connecting groove; the torsion shaft (214) is installed on the rear end surface of the inner side wall of the connecting groove; the limiting shell (213) is rotatably connected to the stop bar (215) through the torsion shaft (214).

6. The intravenous drug liquid preparation delivery device according to claim 5, characterized in that: The material taking assembly (22) comprises a support frame (221), a servo motor (222), a turntable (223), an electric telescopic rod A (224) and a clamp (225); the right end of the support frame (221) is fixedly connected to the servo motor (222); the output end of the servo motor (222) is fixedly connected to the turntable (223); two electric telescopic rods A (224) are symmetrically fixedly connected to the outer side of the turntable (223); the other end of the electric telescopic rod A (224) is fixedly connected to the clamp (225).

7. The intravenous drug liquid preparation delivery device according to claim 6, characterized in that: The conveying assembly (23) comprises a mounting shell (231), a conveying pipe (232), a sealing sleeve (233) and a clamping sleeve (234); the mounting shell (231) is slidably connected to the inner side of the limiting groove of the fixing frame (211); the conveying pipe (232) is fixedly connected to the inner side of the mounting shell (231); both ends of the conveying pipe (232) are fixedly connected to the sealing sleeve (233); the outer side of the sealing sleeve (233) is fixedly connected to the clamping sleeve (234); a clamping groove is provided at the central position of the mounting shell (231); the outer side of the clamping hoop (225) is elastically matched with the clamping groove of the mounting shell (231); and the outer side of the mounting shell (231) is provided with auxiliary grooves in a bilaterally symmetrical arrangement.

8. The intravenous drug liquid preparation delivery device according to claim 7, characterized in that: Each group of the separation components (24) includes a mounting frame (241), an electric telescopic rod B (242), a connecting block (243) and a push sleeve (244); the outer side of the sleeve (121) is fixedly connected to the mounting frame (241); one side of the mounting frame (241) is fixedly connected to the electric telescopic rod B (242); the output end of the electric telescopic rod B (242) is fixedly connected to the connecting block (243); and the top end of the connecting block (243) is fixedly connected to the push sleeve (244).

9. The intravenous drug liquid preparation delivery device according to claim 8, characterized in that: The assembly component (25) comprises a limiting rail (251), a mounting platform (252), a dual-axis motor (253), a moving screw (254), a shifting rod (255) and a cylinder (256); the limiting rail (251) is fixedly connected between the two mounting frames (241); the rear end surface of the limiting rail (251) is fixedly connected to the mounting platform (252); the outer side of the mounting platform (252) is fixedly connected to the dual-axis motor (253); two output ends of the dual-axis motor (253) are symmetrically fixedly connected to the moving screw (254); the other end of the moving screw (254) is connected to the moving screw (254). The rotating shaft is rotatably connected to the mounting frame (241); the outer side of the movable screw rod (254) is threadedly connected to the shift rod (255); the top of the shift rod (255) is slidably connected to the mounting shell (231); the motion trajectory of the shift rod (255) is linear; the clamping sleeve (234) is arranged on the motion trajectory of the shift rod (255); the limiting rail (251) passes through the surface of the shift rod (255); the outer side of the limiting rail (251) is slidably connected to the shift rod (255); and the cylinder (256) is fixedly connected to the side where the two shift rods (255) are close to each other.

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