A burette infusion set

Abstract

This utility model relates to a burette-type infusion set, including an infusion bottle and an infusion tubing. A connecting block is fixedly installed at the bottom of the infusion bottle, and a fixing component is threadedly connected to the surface of the connecting block. The fixing component includes an mounting block threadedly connected to the surface of the connecting block, a connecting cylinder fixedly installed at the bottom of the mounting block, and fixing blocks fixedly installed on the left and right inner walls of the connecting cylinder. Clamping plates are rotatably installed inside both fixing blocks via a rotating shaft. This burette-type infusion set achieves an adjustable and secure connection between the fixing component and the infusion bottle through the internal thread of the mounting block and the external thread of the connecting block. The elastic clamping structure, composed of the fixing block, clamping plates, and a return spring, utilizes an arc-shaped groove to conform to the surface of the infusion tubing, providing a stable clamping force. Furthermore, the magnetic attraction of the metal plate and the magnet reduces the risk of the infusion tubing detaching from the infusion bottle, effectively counteracting external pulling forces.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a burette-type infusion set. Background Technology

[0002] An infusion set is a common medical consumable. After sterilization, it establishes a channel between the vein and the medication for intravenous infusion. It is generally composed of eight parts: an intravenous needle or injection needle, a needle cap, an infusion tubing, a medication filter, a flow regulator, a drip chamber, a stopper puncture device, and an air filter. Some infusion sets also have an injection port and a medication dispensing port.

[0003] Currently, common burette-type infusion sets mainly rely on traditional puncture interfaces for connecting the infusion tubing and the infusion bottle. This involves directly inserting a puncture device from the tip of the infusion tubing into the rubber stopper of the infusion bottle to achieve the connection. The connection structure relies solely on the friction between the puncture device and the rubber stopper, resulting in limited fixation strength. When subjected to external force, it is prone to loosening. Therefore, a burette-type infusion set is proposed to solve the aforementioned problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a burette-type infusion set, which has the advantages of stable connection between the infusion bottle and the infusion tube. It solves the problem of connecting the infusion bottle by directly inserting a puncture device at the top of the infusion tube into the rubber stopper of the infusion bottle, where the connection structure relies solely on the friction between the puncture device and the rubber stopper, resulting in limited fixing strength and easy loosening when subjected to external force.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a burette infusion set, comprising an infusion bottle and an infusion tube, wherein a connecting block is fixedly installed at the bottom of the infusion bottle, and a fixing component is threadedly connected to the surface of the connecting block;

[0006] The fixing assembly includes a mounting block with a threaded connection to the surface of the connecting block. A connecting cylinder is fixedly installed at the bottom of the mounting block. Fixing blocks are fixedly installed on the left and right inner walls of the connecting cylinder. Clamping plates are rotatably installed inside the two fixing blocks via a rotating shaft. Two return springs are fixedly installed on the left and right inner walls of the connecting cylinder. An arc-shaped groove is opened on the opposite side of the two clamping plates. A threaded groove is opened inside the mounting block. The inner wall of the threaded groove is provided with internal threads. The surface of the connecting block is provided with external threads. A square block is fixedly installed at the end of the infusion tube near the infusion bottle. A metal plate is fixedly installed on the surface of the square block. A magnet block is fixedly installed at the bottom of the infusion bottle.

[0007] Preferably, elastic rubber pads are installed on the opposite sides of the two arc-shaped grooves, and both elastic rubber pads are in contact with the surface of the infusion tube.

[0008] Preferably, the top of the infusion tube passes through the connecting cylinder, the mounting block, and the connecting block and is connected to the infusion bottle.

[0009] Preferably, the external thread is adapted to the internal thread, and the metal plate is attracted to the magnet.

[0010] Preferably, the opposite sides of both sets of reset springs are fixedly connected to the surface of the clamping plate.

[0011] Preferably, the radius of the arc groove is 0.5-1.0 mm larger than the outer diameter of the infusion tube, and the minimum distance between the two clamping plates in the natural state of the return spring is 1.5-2.0 mm smaller than the outer diameter of the infusion tube.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] 1. This burette-type infusion set achieves an adjustable and secure connection between the fixing component and the infusion bottle through the internal thread of the mounting block and the external thread of the connecting block; in conjunction with the elastic clamping structure composed of the fixing block, clamping plate and return spring, the arc groove fits against the surface of the infusion tube to provide a stable clamping force; and with the help of the magnetic attraction of the metal plate and the magnet block, the multi-structure synergy reduces the risk of the infusion tube and infusion bottle detaching and effectively copes with external pulling force.

[0014] 2. This burette infusion set features a design with an arc groove radius larger than the outer diameter of the infusion tube, preventing rigid compression damage to the tubing. Combined with a reset spring where the clamping plate spacing is smaller than the outer diameter of the infusion tube in its natural state, stable clamping force is ensured. Simultaneously, the elastic rubber pad within the arc groove provides flexible contact with the infusion tube, preventing indentations and damage, further enhancing anti-slip properties, and extending the infusion tube's lifespan. Attached Figure Description

[0015] Figure 1 This is a three-dimensional view of the burette-type infusion set of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the burette-type infusion set of this utility model;

[0017] Figure 3 This is a schematic diagram showing the connection between the infusion bottle and the infusion tube of this utility model;

[0018] Figure 4 This is a cross-sectional view of the fixing component structure of this utility model;

[0019] Figure 5 This is a three-dimensional view of the clamping plate structure of this utility model.

[0020] In the diagram: 1. Infusion bottle; 2. Connecting block; 3. Fixing assembly; 301. Mounting block; 302. Connecting cylinder; 303. Fixing block; 304. Clamping plate; 305. Return spring; 306. Arc groove; 307. Internal thread; 308. External thread; 309. Connecting block; 310. Metal plate; 311. Magnet block; 4. Infusion tubing. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5 In this embodiment, a burette-type infusion set includes an infusion bottle 1 and an infusion tube 4. A connecting block 2 is fixedly installed at the bottom of the infusion bottle 1, and a fixing component 3 is threadedly connected to the surface of the connecting block 2.

[0023] In this embodiment, the infusion tube 4 is inserted into the infusion bottle 1, and the fixing component 3 is used to assist both. The infusion bottle 1 is hung at a high place, and the weight of the bottle causes the liquid inside to flow into the infusion tube 4, thereby being injected into the human body.

[0024] The fixing component 3 includes a mounting block 301 threadedly connected to the surface of the connecting block 2. A connecting cylinder 302 is fixedly mounted on the bottom of the mounting block 301. Fixing blocks 303 are fixedly mounted on the left and right inner walls of the connecting cylinder 302. Clamping plates 304 are rotatably mounted inside the two fixing blocks 303 via a rotating shaft. Two return springs 305 are fixedly mounted on the left and right inner walls of the connecting cylinder 302. An arc-shaped groove 306 is opened on the opposite side of the two clamping plates 304. A threaded groove is opened inside the mounting block 301. The inner wall of the threaded groove is provided with an internal thread 307. An external thread 308 is provided on the surface of the connecting block 2. A square block 309 is fixedly mounted on the end of the infusion tube 4 near the infusion bottle 1. A metal plate 310 is fixedly mounted on the surface of the square block 309. A magnet block 311 is fixedly mounted on the bottom of the infusion bottle 1.

[0025] In this embodiment, during installation, the mounting block 301 is first threadedly connected to the external thread 308 on the connecting block 2 via the internal thread 307, and the fixing component 3 is installed at the bottom of the infusion bottle 1. Inside the connecting cylinder 302, the return spring 305 is in a compressed state, generating an inward pulling force on the clamping plate 304. Then, the infusion tube 4 is inserted into the infusion bottle 1. When the infusion tube 4 passes through the connecting cylinder 302, it will squeeze the two clamping plates 304 to make them rotate around the pivot inside the fixing block 303, and the return spring 305 will be further compressed. When the infusion tube 4 reaches the appropriate position, under the elastic force of the return spring 305, the two clamping plates 304 tightly clamp the infusion tube 4 through the arc groove 306. At the same time, the metal plate 310 on the infusion tube 4 and the magnet block 311 at the bottom of the infusion bottle 1 attract each other, further enhancing the stability of the connection.

[0026] In this embodiment, the threaded connection structure (the internal thread 307 of the mounting block 301 and the external thread 308 of the connecting block 2) makes it easy to install and disassemble the fixing component 3, and the tightness can be adjusted as needed; at the same time, the clamping structure composed of the fixing block 303, the clamping plate 304 and the return spring 305, with the arc groove 306 fitting against the surface of the infusion tube 4, can provide a stable and uniform clamping force, preventing the infusion tube 4 from detaching from the infusion bottle 1; and the magnetic attraction design of the metal plate 310 and the magnet block 311, as an auxiliary fixing means, further improves the reliability of the overall connection, especially when subjected to external force pulling, which can effectively reduce the risk of the infusion tube 4 being pulled out of the infusion bottle 1.

[0027] Elastic rubber pads are installed on opposite sides of the two arc-shaped grooves 306, and both elastic rubber pads are in contact with the surface of the infusion tube 4.

[0028] In this embodiment, the elastic rubber pad is soft, which prevents the clamping plate 304 from directly and rigidly contacting and squeezing the infusion tube 4, preventing the infusion tube 4 from developing indentations, deformation or damage due to long-term clamping, extending the service life of the infusion tube 4, and also effectively preventing the infusion tube 4 from sliding or detaching.

[0029] The radius of the arc groove 306 is 0.5-1.0 mm larger than the outer diameter of the infusion tube 4, and the minimum distance between the two clamping plates 304 in the natural state of the return spring 305 is 1.5-2.0 mm smaller than the outer diameter of the infusion tube 4.

[0030] In this embodiment, the radius of the arc groove 306 is slightly larger than the outer diameter of the infusion tube 4, which can prevent rigid compression from damaging the pipeline. At the same time, in the natural state, the spacing between the clamping plates 304 of the return spring 305 is smaller than the outer diameter of the infusion tube 4, ensuring that sufficient pressure is generated during clamping to firmly fix the pipeline.

[0031] In summary, this burette-type infusion set achieves an adjustable and secure connection between the fixing component 3 and the infusion bottle 1 by setting the internal thread 307 of the mounting block 301 and the external thread 308 of the connecting block 2; in conjunction with the elastic clamping structure composed of the fixing block 303, the clamping plate 304 and the return spring 305, the arc groove 306 fits against the surface of the infusion tube 4 to provide a stable clamping force; and with the help of the magnetic attraction of the metal plate 310 and the magnet block 311, the multi-structure synergy reduces the risk of the infusion tube 4 detaching from the infusion bottle 1 and effectively copes with external pulling forces.

[0032] Furthermore, the design of the arc groove 306 having a radius larger than the outer diameter of the infusion tube 4 avoids rigid compression damage to the tubing; coupled with the setting that the spacing between the clamping plates 304 in the natural state of the return spring 305 is smaller than the outer diameter of the infusion tube 4, a stable clamping force is ensured. At the same time, the elastic rubber pad inside the arc groove 306 flexibly contacts and adheres to the infusion tube 4, which not only prevents indentation and damage to the tubing, but also further improves the anti-slip effect and extends the service life of the infusion tube 4.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A burette-type infusion set, comprising an infusion bottle (1) and an infusion tubing (4), characterized in that: A connecting block (2) is fixedly installed at the bottom of the infusion bottle (1), and a fixing component (3) is threadedly connected to the surface of the connecting block (2); The fixing component (3) includes a mounting block (301) threadedly connected to the surface of the connecting block (2). A connecting cylinder (302) is fixedly mounted on the bottom of the mounting block (301). Fixing blocks (303) are fixedly mounted on the left and right inner walls of the connecting cylinder (302). Clamping plates (304) are rotatably mounted inside the two fixing blocks (303) via a rotating shaft. Two return springs (305) are fixedly mounted on the left and right inner walls of the connecting cylinder (302). The two clamping plates (304) are... 04) An arc-shaped groove (306) is provided on each opposite side. A threaded groove is provided inside the mounting block (301). An internal thread (307) is provided on the inner wall of the threaded groove. An external thread (308) is provided on the surface of the connecting block (2). A block (309) is fixedly installed at one end of the infusion tube (4) near the infusion bottle (1). A metal plate (310) is fixedly installed on the surface of the block (309). A magnet block (311) is fixedly installed at the bottom of the infusion bottle (1).

2. The burette-type infusion set according to claim 1, characterized in that: Elastic rubber pads are installed on opposite sides of the two arc-shaped grooves (306), and both elastic rubber pads are in contact with the surface of the infusion tube (4).

3. The burette-type infusion set according to claim 1, characterized in that: The top of the infusion tube (4) passes through the connecting tube (302), the mounting block (301) and the connecting block (2) and is connected to the infusion bottle (1).

4. A burette-type infusion set according to claim 1, characterized in that: The external thread (308) is adapted to the internal thread (307), and the metal plate (310) is attracted to the magnet (311).

5. A burette-type infusion set according to claim 1, characterized in that: Both sets of return springs (305) are fixedly connected to the surface of the clamping plate (304) on opposite sides.

6. A burette-type infusion set according to claim 1, characterized in that: The radius of the arc groove (306) is 0.5-1.0 mm larger than the outer diameter of the infusion tube (4), and the minimum distance between the two clamping plates (304) in the natural state of the return spring (305) is 1.5-2.0 mm smaller than the outer diameter of the infusion tube (4).

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