A self-clamping infusion pump with a height-adjustable connector

Abstract

The application discloses a self-clamping infusion pump and infusion rod connector with convenient height adjustment, which comprises an L-shaped supporting plate for fixing an infusion pump, the supporting plate comprises a vertical part and a horizontal part formed to the right of the vertical part, the infusion pump is installed on the horizontal part and can be connected through a bolt, and in practice, the infusion pump is fixed through a bolt; a guide cylinder with a square cross section is arranged on one side of the supporting plate and is downwardly arranged, the lower end of the guide cylinder is bent in an arc to form a horizontal guide part, a fixed clamping plate for abutting against an infusion rod from the left side is connected to the front side of the guide part through an arc-shaped connecting rod, the connecting rod passes by the front side of the infusion rod, the lower pressing mechanism for installing the supporting plate in the guide cylinder and the clamping mechanism for clamping the infusion rod to the left in the guide part are further included, and the lower pressing mechanism and the clamping mechanism are connected through a transmission mechanism capable of transmitting force and providing initial extrusion force, so that the gravity of the infusion pump is converted into horizontal clamping force.

Description

Technical Field

[0001] This invention relates to the field of infusion pump and infusion rod connection, specifically a self-clamping infusion pump and infusion rod connector that is easy to adjust in height. Background Technology

[0002] Infusion pumps are commonly used auxiliary devices in medical infusion processes, enabling precise control of infusion rate and dosage. They are widely used in clinical settings such as intensive care, chemotherapy, anesthesia, and pediatrics. Infusion pumps typically need to be fixed to an infusion pole, and the height of the pole often requires frequent adjustments due to variations in patient position, bed height, and operational needs. Existing connectors mostly use manual tightening or clip-on fixing methods. Adjusting the height requires first loosening the locking mechanism, then manually moving the infusion pump to the appropriate position, and finally re-locking it. This cumbersome process is especially time-consuming in emergency situations or when frequently changing infusion bottles, and improper operation can easily lead to the infusion pump slipping. Therefore, this invention proposes a self-clamping connector for infusion pumps and infusion poles that facilitates height adjustment. The aim is to achieve rapid and stable height adjustment through structural optimization, improving the convenience and safety of clinical use. Summary of the Invention

[0003] The purpose of this invention is to provide a self-clamping infusion pump and infusion rod connector that is easy to adjust in height, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a self-clamping infusion pump and infusion rod connector with convenient height adjustment, comprising an "L"-shaped support plate for fixing the infusion pump, the support plate comprising a vertical part and a horizontal part formed to the right of the vertical part, the infusion pump being mounted on the horizontal part and connected by bolts, which is actually fixed by bolts. A guide cylinder with a square cross-section facing downward is provided on one side of the support plate, and the lower end of the guide cylinder is bent to the left in an arc to form a horizontal guide part. The front side of the guide part is connected to a fixing clamp plate that abuts against the infusion rod from the left side by an arc-shaped connecting rod. The connecting rod passes around the front side of the infusion rod. The fixing clamp plate is arc-shaped with the infusion rod coaxial with the diameter, which can be the same as the infusion rod or slightly larger. It also includes a pressing mechanism installed in the guide cylinder for mounting the support plate and a clamping mechanism installed in the guide part for clamping the infusion rod to the left. The pressing mechanism and the clamping mechanism are connected by a transmission mechanism that can transmit force and provide initial squeezing force to convert the gravity of the infusion pump into a horizontal clamping force. The transmission mechanism provides an initial force to the clamping mechanism, clamping the infusion rod to prevent it from sliding down and providing friction. The pressing mechanism moves downward under the weight of the infusion pump. Through the transmission mechanism, the gravity is converted from a vertical force into a horizontal clamping force, thus achieving better fixation. The heavier the infusion pump, the tighter the clamping. When the height needs to be adjusted upward, simply lift the infusion pump, and the transmission mechanism pulls back the clamping mechanism. With low friction, the position can be easily adjusted upward. After being released, it can be clamped again using gravity, which is more convenient.

[0005] Preferably, the pressing mechanism includes a vertical guide block that can move up and down along the guide cylinder, and the upper right side of the guide block is connected to the support plate. The vertical guide block has a vertical length and can move up and down along the guide cylinder.

[0006] Preferably, the clamping mechanism includes a transverse guide block installed in the guide section and a movable clamping plate installed at the left end of the transverse guide block. The movable clamping plate is also arc-shaped to fit the infusion rod, with a larger contact area. The rear ends of the fixed clamping plate and the movable clamping plate are bent outward in an arc to facilitate fitting onto the infusion rod, so that it can be fitted by direct squeezing.

[0007] Preferably, the transmission mechanism includes a spring disposed between the vertical guide block and the horizontal guide block, and the spring is located between the guide cylinder and the guide portion to transmit pressure.

[0008] Preferably, the spring is connected to a spring with an elastic rubber strip at its middle, and the two ends of the rubber strip are fixed to the inner wall of the guide cylinder. This ensures that the spring can move along the guide section while providing initial elastic force support and fixation. Under the action of the rubber strip, the movable clamping plate presses against the infusion rod, providing initial clamping force and friction. Without the rubber strip, the spring would slide inward, and the initial elastic force would be unstable and relatively small. When the vertical guide block is squeezed, the rubber strip can deform and stretch elastically, ensuring that the spring moves and compresses towards the infusion rod, providing the pressure required for clamping force. Therefore, the rubber strip is just right, ensuring the initial elastic force of the spring, allowing it to move under pressure to ensure subsequent clamping force, and preventing the vertical and horizontal guide blocks from slipping out.

[0009] Preferably, a sealed cavity is formed between the vertical guide block and the horizontal guide block inside the guide cylinder, and a sealing ring is provided at the end of both the vertical guide block and the horizontal guide block that is close to each other so as to drive the internal gas and assist the spring to increase the pressure. The dual force has a better conversion effect.

[0010] Preferably, the vertical guide block is divided into an upper rotating part and a lower fixed part, and the rotating part and the fixed part are rotatably connected. There is a rotational distance between the support plate and the guide cylinder. There is an anti-slip buffer distance between the upper end of the fixed part and the upper end of the guide cylinder for upward movement. When slowly lifted, the rotating part is located inside the guide cylinder, so the position can be adjusted upward. When lifted quickly, the rotating part can slide out of the guide cylinder and rotate horizontally to lock onto the upper end of the guide cylinder, so as to press down to adjust the height. If it is not locked on the top and is pressed down directly, although it can move down slowly, it is also easy to cause the spring to press against the horizontal guide block, increasing the clamping force of the movable clamping plate and making it difficult to slide down. Of course, if the infusion pump is released directly, it will be pressed down and clamped directly. After being locked on the guide cylinder, the clamping force is reduced, and pressing down on the infusion pump will not change the clamping force and friction.

[0011] Preferably, the lower end of the rotating part is provided with a rotating block with an inverted "T" shaped cross section, and the fixed part is provided with a corresponding rotating groove. The rotating block is two cylinders with a larger bottom diameter, making it less likely to slip upwards. The lower end of the rotating part is provided with a chamfer in the circumferential direction, which facilitates sliding into the guide cylinder after returning to its original position.

[0012] Preferably, the rotating block and the rotating groove are connected by an elastic return component, and the bottom of the rotating groove is provided with a receiving groove corresponding to the return component. The lower end of the return component is fixed to the bottom of the receiving groove, and the upper end of the return component is fixed to the rotating block to facilitate return after rotation.

[0013] Preferably, the return component is an annular rubber sleeve or torsion spring, which can sense the appropriate positive position through torque when returning to the correct position.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. In use, the fixed and movable clamps are secured to both sides of the infusion rod. The springs and rubber bands provide initial clamping force. Releasing the pump causes gravity to move the vertical guide block downwards, pushing the movable clamp towards the fixed clamp, thus clamping the infusion rod. The rubber band provides stable elasticity in the initial stage and, after being compressed, its elastic deformation ensures continuous pressure from the spring movement, while preventing the vertical and horizontal guide blocks from slipping. Here, the weight of the infusion pump is converted from a vertical direction into a horizontal clamping force, resulting in a stronger clamping force. When upward adjustment is needed, simply lift the infusion pump; it's simpler. Releasing the pump directly clamps it, saving time compared to the traditional method of repeatedly turning the knob.

[0016] 2. A sealed cavity is formed between the vertical guide block and the horizontal guide block, which, in conjunction with the sealing ring, utilizes internal gas to drive and assist the spring in pressurizing;

[0017] 3. When adjusting the position downwards, first lift the infusion pump to make the rotating part slide out of the guide cylinder, rotate it, and lock it on the upper side of the guide cylinder. At this time, the clamping force is reduced. Then press down the infusion pump to move it downwards easily. It is simple and convenient. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present invention;

[0019] Figure 2 This is an axonometric view of the first embodiment of the present invention;

[0020] Figure 3 This is an isometric view of the first embodiment of the present invention connected to an infusion pump;

[0021] Figure 4 This is a schematic diagram of the structure of the second embodiment of the present invention;

[0022] Figure 5 This is a first axonometric view of the second embodiment of the present invention;

[0023] Figure 6 This is a second axonometric view of a second embodiment of the present invention;

[0024] Figure 7 This is a third axonometric view of the second embodiment of the present invention.

[0025] In the diagram: 1. Support plate; 2. Guide cylinder; 21. Guide part; 22. Fixed clamping plate; 3. Vertical guide block; 31. Rotating part; 32. Fixed part; 4. Horizontal guide block; 41. Movable clamping plate; 5. Spring; 51. Rubber strip; 6. Rotating block; 61. Returning component. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Example 1

[0028] Please see Figures 1 to 3This invention provides a technical solution for a self-clamping infusion pump and infusion rod connector with convenient height adjustment: A self-clamping infusion pump and infusion rod connector with convenient height adjustment includes an "L"-shaped support plate 1 for fixing the infusion pump. The support plate 1 includes a vertical portion and a horizontal portion extending to the right from the vertical portion. The infusion pump is mounted on the horizontal portion and can be connected by bolts, which is actually used for bolt fixation. Currently, the infusion rod also has an annular protrusion, which is the lowest position. Adjusting upwards usually involves loosening and then tightening a knob. A guide cylinder 2 with a square cross-section pointing downwards is provided on one side of the support plate 1, and the lower end of the guide cylinder 2... A horizontal guide section 21 is formed by bending to the left in an arc. The front side of the guide section 21 is connected to a fixed clamping plate 22 that abuts against the infusion rod from the left side via an arc-shaped connecting rod. The connecting rod passes around the front side of the infusion rod. The fixed clamping plate 22 is arc-shaped and coaxial with the infusion rod. Its diameter can be the same as or slightly larger than that of the infusion rod. It also includes a pressing mechanism installed in the guide cylinder 2 for installing the support plate 1 and a clamping mechanism installed in the guide section 21 to clamp the infusion rod to the left. The pressing mechanism and the clamping mechanism are connected by a transmission mechanism that can transmit force and provide initial squeezing force to convert the gravity of the infusion pump into a horizontal clamping force. The transmission mechanism provides an initial force to the clamping mechanism, clamping the infusion rod to prevent it from sliding down and providing friction. The pressing mechanism moves downward under the weight of the infusion pump. Through the transmission mechanism, the gravity is converted from a vertical force into a horizontal clamping force, thus achieving better fixation. The heavier the infusion pump, the tighter the clamping. When the height needs to be adjusted upward, simply lift the infusion pump, and the transmission mechanism pulls back the clamping mechanism. With low friction, the position can be easily adjusted upward. After being released, it can be clamped again using gravity, which is more convenient.

[0029] The pressing mechanism includes a vertical guide block 3 that can move up and down along the guide cylinder 2, and the upper right side of the vertical guide block 3 is connected to the support plate 1. The vertical guide block 3 has a vertical length and can move up and down along the guide cylinder 2.

[0030] The clamping mechanism includes a transverse guide block 4 fitted inside the guide section 21 and a movable clamping plate 41 installed at the left end of the transverse guide block 4. The movable clamping plate 41 is also arc-shaped to fit the infusion rod, resulting in a larger contact area. The rear ends of the fixed clamping plate 22 and the movable clamping plate 41 are bent outwards in an arc to facilitate fitting onto the infusion rod, allowing for direct compression to secure it. A rubber pad can be provided at one of the opposite ends to increase friction.

[0031] The transmission mechanism includes a spring 5 disposed between the vertical guide block 3 and the horizontal guide block 4, and the spring 5 is located between the guide cylinder 2 and the guide section 21 to transmit pressure. An elastic rubber strip 51 is connected to the middle of the spring 5, and both ends of the rubber strip 51 are fixed to the inner wall of the guide cylinder 2. This ensures that the spring 5 can move along the guide section 21 while providing initial elastic support and fixation. Under the action of the rubber strip 51, the movable clamp 41 presses against the infusion rod, providing initial clamping force and friction. Without the rubber strip 51, the spring 5 would slide inward, and the initial elastic force would be unstable and relatively small. When the vertical guide block 3 is squeezed, the rubber strip 51 can deform and stretch elastically, ensuring that the spring 5 moves and compresses towards the infusion rod, providing the pressure required for clamping force. Therefore, the rubber strip 51 is just right, ensuring both the initial elastic force of the spring 5 and the subsequent clamping force through compression, while also preventing the vertical guide block 3 and the horizontal guide block 4 from slipping out.

[0032] A sealed cavity is formed between the vertical guide block 3 and the horizontal guide block 4 inside the guide cylinder 2. Both the vertical guide block 3 and the horizontal guide block 4 are equipped with sealing rings at their closest ends to drive the internal gas and assist the spring 5 in pressurizing. The dual force results in a better conversion effect.

[0033] Example 2

[0034] like Figures 4 to 7 Based on Embodiment 1, as a preferred embodiment, the vertical guide block 3 is divided into an upper rotating part 31 and a lower fixed part 32, and the rotating part 31 and the fixed part 32 are rotatably connected. There is a rotational distance between the support plate 1 and the guide cylinder 2. There is an anti-slip buffer distance between the upper end of the fixed part 32 and the upper end of the guide cylinder 2 for upward movement. When slowly lifted, the rotating part 31 is located inside the guide cylinder 2, so that the position can be adjusted upward. When quickly lifted, the rotating part 31 can slide out of the guide cylinder 2 and rotate horizontally to lock onto the upper end of the guide cylinder 2, so that it can be pressed down to adjust the height. If it is not locked on the top and is pressed down directly, although it can move down slowly, it is also easy to cause the spring 5 to press against the horizontal guide block 4, increasing the clamping force of the movable clamping plate 41, making it difficult to slide down. Of course, if the infusion pump is released directly, it will be pressed down and clamped directly. After being locked on the guide cylinder 2, the clamping force is reduced, and pressing down on the infusion pump will not change the clamping force and friction. The lower end of the rotating part 31 is provided with a rotating block 6 with an inverted "T" shaped cross section, and the fixed part 32 is provided with a corresponding rotating groove. The rotating block 6 consists of two cylinders with a larger bottom diameter, making it less likely to slip upwards. The lower end of the rotating part 31 is provided with a chamfer in the circumferential direction, which facilitates sliding into the guide cylinder 2 after returning to its original position.

[0035] In a preferred embodiment, the rotating block 6 is connected to the rotating groove via an elastic return component 61. The bottom of the rotating groove has a corresponding receiving groove for the return component 61. The lower end of the return component 61 is fixed to the bottom of the receiving groove, and the upper end of the return component 61 is fixed to the rotating block 6 to facilitate return after rotation. The return component 61 is an annular rubber sleeve or torsion spring, which, when returning to the correct position, allows the user to sense the appropriate positive position through torque.

[0036] In addition, the guide cylinder 2 can be vertical or inclined, with the upper end tilted to the right. It can also be tilted upward in conjunction with the connecting rod. In this way, the infusion pump not only generates downward gravity, but also drives the fixed clamp 22 to perform triangular support with the movable clamp 41 as the fulcrum, and rotates and clamps.

[0037] Working principle: In use, the fixed clamp 22 and the movable clamp 41 are clamped on both sides of the infusion rod. Under the action of the spring 5 and the rubber strip 51, an initial clamping force is provided. When the pump is released, the vertical guide block 3 moves downward under the action of gravity. The elastic force generated by the spring 5 pushes the movable clamp 41 towards the fixed clamp 22, thereby clamping the infusion rod. The rubber strip 51 provides stable elastic force in the initial stage and ensures that the spring 5 continues to apply pressure after being compressed through elastic deformation. At the same time, it prevents the vertical guide block 3 and the horizontal guide block 4 from slipping off. Here, the gravity of the infusion pump is converted from the vertical direction into a horizontal clamping force, resulting in a stronger clamping force. When the position needs to be adjusted upward, the infusion pump can be lifted directly, which is simpler. It can be clamped directly after being released. Compared with the traditional method that requires repeated rotation of the knob, this is more convenient.

[0038] A sealed cavity is formed between the vertical guide block 3 and the horizontal guide block 4. The sealing ring is driven by the internal gas and the auxiliary spring 5 is pressurized.

[0039] When adjusting the position downwards, first lift the infusion pump to make the rotating part 31 slide out of the guide cylinder 2, rotate it, and lock it on the upper side of the guide cylinder 2. At this time, the clamping force is reduced, and then press down the infusion pump to move it downwards easily. It is simple and convenient.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-clamping infusion pump and infusion rod connector with convenient height adjustment, comprising an "L"-shaped support plate (1) for fixing the infusion pump, characterized in that: The tray (1) has a guide cylinder (2) with a square cross-section facing downwards on one side, and the lower end of the guide cylinder (2) is bent to the left in an arc to form a horizontal guide part (21). The front side of the guide part (21) is connected to a fixed clamping plate (22) that abuts against the infusion rod from the left side by an arc-shaped connecting rod. It also includes a pressing mechanism installed in the guide cylinder (2) for installing the tray (1) and a clamping mechanism installed in the guide part (21) to clamp the infusion rod to the left. The pressing mechanism and the clamping mechanism are connected by a transmission mechanism that can transmit force and provide initial squeezing force to convert the gravity of the infusion pump into a horizontal clamping force.

2. The self-clamping infusion pump and infusion rod connector with convenient height adjustment according to claim 1, characterized in that: The pressing mechanism includes a vertical guide block (3) that can move up and down along the guide cylinder (2), and the upper right side of the vertical guide block (3) is connected to the support plate (1), and the left end of the support plate (1) abuts against the guide cylinder (2).

3. The self-clamping infusion pump and infusion rod connector with convenient height adjustment according to claim 2, characterized in that: The clamping mechanism includes a horizontal guide block (4) installed in the guide part (21) and a movable clamping plate (41) installed at the left end of the horizontal guide block (4). The rear ends of the fixed clamping plate (22) and the movable clamping plate (41) are bent outward in an arc to facilitate fitting onto the infusion rod.

4. The self-clamping infusion pump and infusion rod connector with convenient height adjustment according to claim 3, characterized in that: The transmission mechanism includes a spring (5) disposed between the vertical guide block (3) and the horizontal guide block (4), and the spring (5) is located between the guide cylinder (2) and the guide part (21) to transmit pressure.

5. The self-clamping infusion pump and infusion rod connector with convenient height adjustment according to claim 4, characterized in that: The spring (5) is connected to an elastic rubber strip (51) in the middle, and the two ends of the rubber strip (51) are fixed on the inner wall of the guide cylinder (2). While ensuring that the spring (5) can move along the guide (21), it provides support and fixation for the initial elastic force.

6. The self-clamping infusion pump and infusion rod connector with convenient height adjustment according to claim 5, characterized in that: A sealed cavity is formed between the vertical guide block (3) and the horizontal guide block (4) inside the guide cylinder (2), and a sealing ring is provided at the close end of both the vertical guide block (3) and the horizontal guide block (4) to be driven by internal gas.

7. The self-clamping infusion pump and infusion rod connector with convenient height adjustment according to claim 5, characterized in that: The vertical guide block (3) is divided into an upper rotating part (31) and a lower fixed part (32), and the rotating part (31) and the fixed part (32) are rotatably connected. The upper end of the fixed part (32) and the upper end of the guide cylinder (2) are left with a non-slip buffer distance for upward movement. When slowly lifted, the rotating part (31) is located inside the guide cylinder (2), and when quickly lifted, the rotating part (31) can slide out of the guide cylinder (2) and rotate horizontally to lock onto the upper end of the guide cylinder (2) so as to press down and adjust the height.

8. The self-clamping infusion pump and infusion rod connector with convenient height adjustment according to claim 7, characterized in that: The lower end of the rotating part (31) is provided with a rotating block (6) with an inverted "T" shaped cross section, and the fixed part (32) is provided with a corresponding rotating groove. The lower end of the rotating part (31) is provided with a chamfer in the circumferential direction.

9. The self-clamping infusion pump and infusion rod connector with convenient height adjustment according to claim 8, characterized in that: The rotating block (6) is connected to the rotating groove by an elastic return component (61), and the bottom of the rotating groove is provided with a receiving groove corresponding to the return component (61). The lower end of the return component (61) is fixed to the bottom of the receiving groove, and the upper end of the return component (61) is fixed to the rotating block (6) to facilitate return after rotation.

10. The self-clamping infusion pump and infusion rod connector with convenient height adjustment according to claim 9, characterized in that: The return component (61) is an annular rubber sleeve or a torsion spring.

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