Micro infusion pump with limiting function

Abstract

The utility model relates to the field of medical instruments, in particular to a micro infusion pump with a limiting function, which comprises a frame and the like. The rack is a bearing supporting carrier of the infusion pump, the micro pump is installed at the top of the rack, a containing groove for containing and clamping an injector is formed in the position, close to the left side, of the middle between the rack and the micro pump, a clamping groove matched with a finger holding rod is formed in the containing groove, a section of parallel groove is formed in one side of the containing groove, and the micro pump is installed in the containing groove. A guide rail is arranged at the right part of the upper middle part of the micro pump; and the movable block is arranged on the guide rail in a sliding manner. By arranging the adjustable clamping plate and the piston limiting piece, the micro infusion pump can adapt to syringes of different sizes and specifications, the use flexibility and the application range of equipment are improved, a round handle at the tail end of a piston rod of each syringe is fixed through the clamping plate clamped by the spring, the stability of the syringes in the injection process is improved, and the injection efficiency is improved. And errors caused by movement of the injector are reduced.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to a micro-infusion pump with a limiting function. Background Technology

[0002] A microinfusion pump is a medical device used to precisely control the rate at which fluids (such as medications, nutritional solutions, etc.) enter a patient's body. This device is particularly useful in situations where small doses of medication need to be administered over a long period of time, such as in intensive care, pediatric treatment, or chemotherapy. Microinfusion pumps are designed to improve drug delivery accuracy, reduce human error, and ensure patient safety.

[0003] Traditional micro-infusion pumps have certain limitations, mainly in that they are usually only compatible with syringes of a specific size. This design limitation reduces the adaptability and flexibility of micro-infusion pumps in different application scenarios, especially in cases where it is necessary to frequently change syringes of different volumes, such as certain special experiments or treatment procedures. In addition, existing micro-infusion pumps lack an effective positioning mechanism to fix the position of the syringe, which can easily lead to displacement of the syringe during operation. Therefore, we propose a micro-infusion pump with a limiting function to overcome the above defects. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model provides a micro-infusion pump with a limiting function.

[0005] The technical solution of this utility model is: a micro-infusion pump with a limiting function, including a frame and a micro-pump. The frame is the load-bearing support carrier of the infusion pump. The micro-pump is installed on the top of the frame. A placement groove for placing and holding a syringe is provided at the middle left of the frame and the micro-pump. The placement groove has a slot adapted for finger gripping. A parallel groove is provided on one side of the placement groove. A guide rail is provided at the upper right of the micro-pump. The pump also includes: a moving block, slidably mounted on the guide rail; and two electric push rods, each fixedly installed in the groove. The pump comprises: a push plate fixed to the telescopic rod of the electric push rod; a clamping plate consisting of a connecting rod and a plate, the clamping plate being slidably mounted on the push plate via the connecting rod, the clamping plate facing the placement slot and used to clamp and limit the syringe; a spring disposed between the clamping plate and the push rod; and a piston limiting component disposed on the moving block, the piston limiting component being used to adapt to and limit the piston rod of syringes of different sizes. Through the action of the spring on the clamping plate, the clamping plate can elastically limit and clamp syringes of different sizes, thereby improving the applicability of this infusion pump to syringes of different sizes.

[0006] Furthermore, the clamping plate is a "C"-shaped plate, and rubber blocks are provided on the clamping surface of the clamping plate. The rubber blocks are used to flexibly clamp the outer shell of the syringe, so as to avoid damage or deformation of the clamping plate when clamping different syringes.

[0007] Furthermore, the piston limiting component includes a retaining plate, a guide rod, and a second spring. A concave sliding groove is provided on the side wall of the moving block near the placement groove. Two guide rods are symmetrically slidably fixed in the sliding groove of the moving block. The retaining plate has upper and lower parts and is slidably set on the side of the moving block near the placement groove through the guide rods. There is a certain gap between the retaining plate and the moving block. A second spring is sleeved on the guide rod between the retaining plate and the moving block. Under the action of the second spring, the retaining plate is used to limit the round handle at the end of the piston rod of the syringe, thereby improving the stability of the syringe when it is pushed and injected on the infusion pump.

[0008] Furthermore, the ends of both clamping plates furthest from the micro-pump are relatively open and curved. The curved ends of the clamping plates facilitate the sliding of the syringe piston rod into the moving block. The clamping plates, in conjunction with the moving block, provide convenient limiting and clamping for the inserted syringe piston rod, saving the need for manual opening of the clamping plates.

[0009] Furthermore, a mounting plate is fixed on one outer wall of the frame and the micro-pump, and a storage box is installed at the lower position of the mounting plate. The storage box is used to store the infusion tubing connected to the syringe barrel, which facilitates the storage and handling of the infusion tubing connected to the syringe.

[0010] Furthermore, a guide rod is provided on the side of the placement slot away from the moving block. The guide rod is used to limit the infusion tube. Multiple limiting frames are provided at the upper position of the mounting plate. The multiple limiting frames and the guide rod form a rectangular limiting point for opening the infusion tube. The limiting frame is provided with a limiting arc clamp tube. A limiting plate is rotatably provided on the arc clamp tube of the limiting frame. The limiting plate is an arc plate adapted to the limiting frame. The limiting frame, together with the limiting plate on it, guides the infusion tube that is opened and limited, thereby improving the smoothness of infusion.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. This utility model, by setting an adjustable clamp and piston limiting component, enables the micro-infusion pump to adapt to syringes of different sizes and specifications, increasing the flexibility and applicability of the equipment. Furthermore, the use of a spring-loaded clamp to fix the end of the syringe piston rod improves the stability of the syringe during injection and reduces errors caused by syringe movement.

[0013] 2. The design of the rubber block on the clamping plate of this utility model can flexibly clamp the syringe, avoiding damage or deformation that may be caused by hard contact, thus ensuring the safe use of the syringe. The design of the curved end of the clamping plate allows the syringe piston rod to slide in easily without the need to manually adjust the position of the clamping plate, simplifying the installation process and saving operation time.

[0014] 3. This utility model can also effectively organize and restrict the position of the infusion tube through structures such as guide rods, limiting frames and storage boxes, which not only makes the arrangement of the infusion tube more neat and orderly, but also helps to maintain the smoothness of the infusion process and reduce the risk of blockage. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This diagram shows the connection relationships of the components of this utility model, including the frame, guide rail, micro pump, and moving block.

[0017] Figure 3 This is a three-dimensional structural diagram of the limiting frame and limiting plate of this utility model.

[0018] Figure 4 This is a schematic diagram showing the relationship between the electric push rod, push plate, clamping plate, and rubber block of this utility model.

[0019] Figure 5 This is a three-dimensional structural diagram of the movable block, card plate, guide rod, and spring II of this utility model.

[0020] In the attached diagram, the following labels are used: 1-frame, 101-guide rail, 2-micro pump, 3-placement slot, 4-slot, 5-moving block, 6-mounting plate, 7-storage box, 8-guide rod, 9-limiting frame, 10-limiting plate, 11-electric push rod, 12-push plate, 121-clamping plate, 13-rubber block, 14-spring one, 15-clamping plate, 16-guide rod, 17-spring two. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0022] A micro-infusion pump with a limiting function, such as Figures 1-5As shown, the device includes a frame 1 and a micro-pump 2. The frame 1 serves as the load-bearing support for the infusion pump. The micro-pump 2 is mounted on the top of the frame 1. A placement groove 3 for holding and clamping a syringe is provided at the center left of the frame 1 and the micro-pump 2. The placement groove 3 has a slot 4 inside that is adapted for gripping the syringe by fingers. A parallel groove is provided on one side of the placement groove 3. A guide rail 101 is provided at the center right of the micro-pump 2. The device also includes: a moving block 5, which is slidably mounted on the guide rail 101; two electric push rods 11, each fixedly mounted in the groove; a push plate 12, which is fixed to the telescopic rod of the electric push rod 11; and a clamping plate 121, which is composed of a connecting rod and a plate. The clamping plate 121 is slidably mounted via the connecting rod. On the push plate 12, the clamping plate 121 faces the placement groove 3 and is used to clamp and limit the syringe. The clamping plate 121 is a "C"-shaped plate. Rubber blocks 13 are provided on the clamping surface of the clamping plate 121. The rubber blocks 13 are used to flexibly clamp the outer shell of the syringe to avoid damage or deformation of the clamping plate 121 when clamping different syringes. Spring 14 is set between the clamping plate 121 and the push rod. Piston limiting component is set on the moving block 5. The piston limiting component is used to adapt to and limit the piston rod of syringes of different sizes. Through the action of spring 14 on the clamping plate 121, the clamping plate 121 can elastically limit and clamp syringes of different sizes, thereby improving the application range of this infusion pump to adapt to syringes of different sizes and specifications.

[0023] like Figure 1 , Figure 2 and Figure 5 As shown, the piston limiting component includes a clamping plate 15, a guide rod 16, and a second spring 17. A recessed sliding groove is formed on the side wall of the moving block 5 near the placement groove 3. Two guide rods 16 are symmetrically slidably fixed within the sliding groove of the moving block 5. The clamping plate 15 has upper and lower parts, which are slidably positioned on the side of the moving block 5 near the placement groove 3 via the guide rods 16. There is a certain gap between the clamping plate 15 and the moving block 5. A second spring 17 is sleeved on each of the guide rods 16 between the clamping plate 15 and the moving block 5. Under the action of the second spring 17, the clamping plate 15 limits the round handle at the end of the syringe piston rod, thereby improving the stability of the syringe when it is pushed and injected on the infusion pump. The ends of the two clamping plates 15 furthest from the micro-pump 2 are relatively open curved ends. The curved ends of the clamping plates 15 facilitate the sliding and locking of the syringe piston rod onto the moving block 5. The clamping plates 15, in conjunction with the moving block 5, conveniently limit and clamp the piston rod of the inserted syringe, saving the need for manual opening of the clamping plates 15.

[0024] like Figures 1-3As shown, a mounting plate 6 is fixed on one outer wall of the frame 1 and the micro-pump 2. A storage box 7 is installed at the lower position of the mounting plate 6. The storage box 7 is used to store the infusion tube connected to the syringe barrel, which facilitates the storage of the infusion tube connected to the syringe. A guide rod 8 is set on the side of the placement slot 3 away from the moving block 5. The guide rod is used to limit the infusion tube. Multiple limiting frames 9 are set at the upper position of the mounting plate 6. The multiple limiting frames 9 and the guide rod form a rectangular limiting point for opening the infusion tube. The limiting frame 9 is equipped with a limiting arc clamp tube. A limiting plate 10 is rotatably set on the arc clamp tube of the limiting frame 9. The limiting plate 10 is an arc plate adapted to the limiting frame 9. The limiting frame 9, together with the limiting plate 10 on it, guides the infusion tube that is opened and limited, improving the smoothness of the infusion tube during infusion.

[0025] When using the micro-infusion pump, first place the syringe in the placement slot 3 at the top of the frame 1. The placement slot 3 has a slot 4 inside, which can accommodate the finger grips of syringes of different sizes, ensuring the syringe is securely placed on the pump. Next, the electric push rod 11 pushes the clamping plate 121. The clamping plate 121 consists of a connecting rod and plates, and can slide along the push plate 12. Rubber blocks 13 are provided on the side of the clamping plate 121 facing the placement slot 3. These rubber blocks 13 can flexibly clamp the outer shell of the syringe, preventing damage or deformation during clamping. As the electric push rod 11 moves forward, the clamping plate 121 gradually approaches the syringe and applies a certain pressure. At this time, the spring 14 located between the clamping plate 121 and the push rod functions, allowing the clamping plate 121 to automatically adjust the clamping force according to the diameter of the syringe, thereby achieving effective clamping and limiting of syringes of different sizes. This ensures that the syringe can work stably under the action of the micro-infusion pump 2, without instability during injection due to improper clamping. When the syringe is placed in the placement slot 3, the end of the syringe piston rod contacts the clamping plate 15. Due to the curved ends between the clamping plates 15, the piston rod can easily slide between the two clamping plates 15. Under the action of the spring 17 on the guide rod 16, the clamping plate 15 can tightly clamp the end of the piston rod, thereby ensuring the stability of the syringe during the operation of the micro-pump 2 and avoiding inaccurate infusion volume due to unstable piston movement. Then, the micro-pump 2 controls the moving block 5 to push the syringe for micro-injection under the guidance of the guide rail 101. In addition, a storage box 7 is provided on one side of the frame 1 to store the infusion tubing connected to the syringe barrel, which is convenient for organizing and protecting the infusion tubing. The side of the placement slot 3 away from the moving block 5 is provided with a guide rod, which works together with the multiple limit brackets 9 on the mounting plate 6 and the limit arc clamp tube to ensure that the tubing maintains appropriate tension and straightness, promotes smooth liquid flow, and reduces resistance and torsion during the infusion process, thereby improving infusion efficiency and safety.

[0026] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A micro infusion pump with limiting function, comprising a rack (1) and a micro pump (2), the micro pump (2) is installed on the top of the rack (1), a placing groove (3) is arranged between the middle of the rack (1) and the micro pump (2) and close to the left, a clamping groove (4) is opened in the inside of the placing groove (3), a parallel groove is opened in one side of the placing groove (3), a guide rail (101) is arranged on the micro pump (2) and close to the right of the middle; characterized in that Further comprising: a moving block (5) is slidingly arranged on the guide rail (101); two electric push rods (11) are fixedly installed in the grooves; a push plate (12) is fixedly arranged on the telescopic rod of the electric push rod (11); a clamping plate (121) is composed of a connecting rod and a plate, the clamping plate (121) is slidingly arranged on the push plate (12) through the connecting rod; a spring (14) is arranged between the clamping plate (121) and the push rod; a piston limiting piece is arranged on the moving block (5), and is used for adapting and limiting the piston rod of an injector with different sizes.

2. The micro infusion pump with a limiting function according to claim 1, wherein, The clamping plate (121) is a "C" shaped plate body, and rubber blocks (13) are arranged on the clamping surfaces of the clamping plate (121).

3. The micro infusion pump with a limiting function according to claim 2, wherein, The piston limiting piece comprises a clamping plate (15), a guide rod (16) and a spring (17), an inner recessed sliding groove is opened in the side wall of the moving block (5) close to the placing groove (3), two guide rods (16) are symmetrically slidingly arranged in the sliding groove of the moving block (5), the clamping plate (15) is provided with two upper and lower plates and is slidingly arranged on the side of the moving block (5) close to the placing groove (3) through the guide rod (16), and the spring (17) is sleeved on the guide rod (16) between the clamping plate (15) and the moving block (5).

4. The micro infusion pump with a limiting function according to claim 3, wherein, The ends of the two clamping plates (15) away from the micro pump (2) are relatively open curved end portions.

5. The microinfusion pump with a limiting function as claimed in claim 4, wherein An installation plate (6) is fixedly arranged on the side outer wall of the rack (1) and the micro pump (2), and a storage box (7) is installed at the lower position of the installation plate (6).

6. The microinfusion pump with a limiting function as claimed in claim 5, wherein A wire guide rod (8) is arranged on the side of the placing groove (3) away from the moving block (5), and is used for limiting an infusion tube, a plurality of limiting racks (9) are arranged at the upper position of the installation plate (6), the limiting racks (9) and the guide rod constitute limiting points for expanding the infusion tube, a limiting arc pipe clamp is arranged on the limiting rack (9), and a limiting plate (10) is rotatably arranged on the limiting arc pipe clamp of the limiting rack (9).

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