Infusion set needle securing device

Abstract

The utility model provides a kind of infusion set puncture needle fixing device, including plug connector and puncture plug, the plug connector and puncture plug are detachably connected by fixed part, the fixed part includes buckle sleeve and two limit rods in buckle sleeve near top, the limit rod and buckle sleeve are penetrated screwing cooperation, and its axis is perpendicular and intersects with the axis of buckle sleeve, control structure for controlling the synchronous and reverse movement of two limit rods is slidably connected on the buckle sleeve.In the utility model, two limit rods are set on the buckle sleeve near top, by setting two limit rods into the structure of screwing connection with buckle sleeve, so that two limit rods spacing increases can easily insert and separate the plug connector on the infusion bottle and buckle sleeve, with the advantage of more labor-saving operation.

Description

Technical Field

[0001] This utility model relates to the field of infusion set technology, specifically to an infusion set puncture needle fixing device. Background Technology

[0002] Currently, in clinical intravenous infusion, the method of using an infusion set involves suspending the medication bottle at a high position, relying on gravity to allow the medication to flow into the vein through the infusion set. During the infusion process, external forces frequently cause the puncture needle to accidentally separate from the infusion bottle, and the main force currently used to hold them together is the friction between the bottle stopper and the puncture needle. This dislodging of the infusion set not only wastes medication and can easily contaminate the remaining medication, but the dislodged puncture needle can also cause injury.

[0003] Utility model patent CN219185251U discloses an infusion set fixing device, which consists of an infusion set and a fixing device. The infusion set includes a conventional infusion set such as a tubing, drip chamber, filter, and regulator. The fixing device is placed at the puncture needle, and a rotating nut can secure the puncture needle and the bottle stopper. This device can firmly connect the infusion bottle and the infusion set, effectively preventing the puncture needle from falling off, ensuring patient safety, and reducing potential risks.

[0004] However, the existing technology has some shortcomings in use: 1. The fixing device has a protrusion inside. When the fixing device and the bottle mouth of the infusion set are inserted, the fixing device will deform so that the protrusion wraps around to the back of the bottle mouth. That is to say, it is a snap-fit ​​mating structure. This structure increases the resistance to installation and disassembly, and is inconvenient for the subsequent classification and processing of infusion bottles and infusion lines; 2. The fixing device has threads and slits, with the slits located on the threads. Then, a nut is screwed on the threads. When the nut is screwed on, it will squeeze the slits and increase the squeezing force of the protrusion on the bottle mouth. However, this screwing method is prone to problems of thread stripping and misalignment, resulting in poor installation and disassembly convenience.

[0005] Therefore, this utility model provides a device for fixing the puncture needle of an infusion set. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an infusion set puncture needle fixing device to solve the problems mentioned in the background technology. This utility model has the advantages of unobstructed docking and disassembly of infusion bottle and puncture needle, making operation more labor-saving, and also has the advantages of more convenient and quick docking and disassembly of infusion bottle and puncture needle.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: an infusion set puncture needle fixing device, including a connector and a puncture plug, wherein the connector and the puncture plug are detachably connected by a fixing part, the fixing part including a buckle and two limiting rods located inside the buckle near the top, the limiting rods and the buckle are screwed together through each other and their axes are perpendicular to and intersect with the axis of the buckle, and a control structure for controlling the synchronous opposing and reverse movement of the two limiting rods is slidably connected on the buckle.

[0008] Furthermore, the buckle is a cylindrical structure with an open top and a clearance hole at its bottom. The piercing plug and the clearance hole are fitted with a clearance, and a limiting plate located above the clearance hole is fixedly sleeved on it.

[0009] Furthermore, the outer peripheral wall of the buckle is fixedly connected with two circumferentially evenly distributed threaded sleeves, which are screwed into the limiting rod.

[0010] Furthermore, the control structure includes a slotted frame, which is slidably fitted with a buckle, and two straight rods on the slotted frame are respectively engaged with the outer peripheral walls of two limiting rods.

[0011] Furthermore, the plane containing the slotted frame is perpendicular to the axis of the buckle, and the threads inside the two threaded sleeves rotate in opposite directions.

[0012] Furthermore, the outer peripheral wall of the buckle is fixedly connected with a guide sleeve that slides with the straight rod.

[0013] Furthermore, a handle is fixedly connected to one side of the crossbar on the slotted frame.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. In this utility model, two limiting rods are provided near the top of the buckle. By setting the two limiting rods to be screwed into the buckle, the buckle and the connector on the infusion bottle can be easily connected and disconnected when the distance between the two limiting rods is increased, which has the advantage of being more labor-saving in operation.

[0016] 2. In this utility model, a slotted frame is slidably connected to the buckle. By setting the slotted frame to engage with two limiting rods, the operator can control the axial movement of the limiting rods when sliding the slotted frame. This has the advantages of making the connection and disassembly of the plug and buckle more convenient and quick. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a puncture needle fixing device for an infusion set according to the present invention;

[0018] Figure 2 for Figure 1 A schematic diagram showing the unfolding after the explosion;

[0019] Figure 3 for Figure 2 The diagram at the bottom.

[0020] In the diagram: 1. Connector; 2. Piercing plug; 21. Limiting plate; 3. Fixing part; 31. Clip; 311. Threaded sleeve; 312. Guide sleeve; 32. Limiting bar; 33. Control structure; 331. Slotted frame; 3311. Straight rod; 3312. Horizontal bar; 33121. Handle. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Please see Figures 1 to 3 This utility model provides a technical solution: an infusion set puncture needle fixing device, including a connector 1 and a puncture plug 2. The connector 1 is located at one end of the infusion bottle, and a rubber plug is embedded in the connector 1. The tip of the puncture plug 2 is inserted through the rubber plug and connected to the infusion bottle. In the prior art, the connector 1 and the puncture plug 2 are detachably connected by a fixing part 3, such as the patent document mentioned in the background art of this application. This technical solution is different from the technical solution of the aforementioned patent document.

[0023] In this technical solution, the fixing part 3 includes a buckle 31 and two limiting rods 32 located inside the buckle 31 near the top. The limiting rods 32 and the buckle 31 are screwed together, and their axes are perpendicular to and intersect with the axis of the buckle 31. In a specific implementation, it is preferred that two circumferentially evenly distributed threaded sleeves 311 are fixedly connected to the outer peripheral wall of the buckle 31. These threaded sleeves 311 are screwed together with the limiting rods 32. By increasing the distance between the two limiting rods 32, the buckle 31 can be fastened to the outside of the connector 1 without resistance, and it can also be pulled out without resistance. When the buckle 31 is fastened to the outside of the connector 1, and then the two limiting rods 32 are controlled to move in opposite directions, the opposite ends of the two limiting rods 32 will be located on the back of the connector 1. At this time, the buckle 31 and the connector 1 are in a fixed connection state.

[0024] Furthermore, the buckle 31 is slidably connected to a control structure 33 for controlling the synchronous opposing and reverse movements of the two limit bars 32.

[0025] Specifically, the control structure 33 includes a slotted frame 331, which slides with the sleeve 31 and has two straight rods 3311 that mesh with the outer peripheral walls of the two limiting rods 32 respectively. Thus, by controlling the sliding of the slotted frame 331, the rotation of the two limiting rods 32 can be controlled. In specific implementation, a row of teeth can be opened on one side of the straight rod 3311, and then a toothed groove that meshes with the teeth can be opened on the outer peripheral wall of the limiting rod 32. The width of the toothed groove is greater than the width of the teeth to facilitate the sliding of the two.

[0026] Furthermore, the plane of the slotted frame 331 is perpendicular to the axis of the buckle 31, meaning that the slotted frame 331 slides laterally relative to the buckle 31. Preferably, the outer peripheral wall of the buckle 31 is fixedly connected to a guide sleeve 312 that slides with the straight rod 3311. The threads in the two threaded sleeves 311 are in opposite directions. At this time, the two straight rods 3311 are located on the same side of the two limiting rods 32. The limiting rods 32 have threads that match the corresponding threaded sleeves 311. Thus, manually controlling the lateral sliding of the slotted frame 331 controls the synchronous movement of the two limiting rods 32 in opposite directions. In use, a handle 33121 is fixedly connected to one side of the crossbar 3312 on the slotted frame 331 for convenient hand operation.

[0027] In this embodiment, the buckle 31 is a cylindrical structure with an open top and a clearance hole at its bottom. The piercing plug 2 and the clearance hole are fitted with a clearance, and a limiting plate 21 located above the clearance hole is fixedly sleeved on it. The buckle 31 fixes the piercing plug 2 and the connector 1 through the limiting plate 21.

[0028] In use, first insert the puncture plug 2 through the connector 1, then hold the buckle 31 and put it on the outside of the connector 1. Then manually push the slot frame 331 to slide through the handle 33121. At this time, the two limiting rods 32 will move axially in opposite directions. The opposite ends of the two limiting rods 32 are located on the back of the connector 1. At this time, the buckle 31 cannot be separated from the connector 1. Thus, under the action of the limiting plate 21, the puncture plug 2 and the infusion bottle are in a fixed connection state. When disassembly is required, manually pull outward through the handle 33121. The two straight rods 3311 will push the corresponding two limiting rods 32 to rotate. Under the screwing restriction of the threaded sleeve 311, the two limiting rods 32 move in opposite directions. At this time, the distance between the two limiting rods 32 increases, and then the buckle 31 and the connector 1 can be easily separated. Finally, the puncture plug 2 can be pulled out.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for fixing an infusion set puncture needle, comprising a connector (1) and a puncture plug (2), wherein the connector (1) and the puncture plug (2) are detachably connected via a fixing part (3), characterized in that, The fixing part (3) includes a buckle (31) and two limiting rods (32) located inside the buckle (31) near the top. The limiting rods (32) and the buckle (31) are screwed together and their axes are perpendicular to and intersect with the axis of the buckle (31). A control structure (33) for controlling the synchronous opposing and reverse movement of the two limiting rods (32) is slidably connected on the buckle (31).

2. The infusion set puncture needle fixation device according to claim 1, characterized in that: The buckle (31) is a cylindrical structure with an open top and a clearance hole at its bottom. The piercing plug (2) is fitted with the clearance hole with a clearance and a limiting plate (21) located above the clearance hole is fixedly sleeved on it.

3. The infusion set puncture needle fixation device according to claim 2, characterized in that: The outer peripheral wall of the buckle (31) is fixedly connected to two circumferentially evenly distributed threaded sleeves (311), which are screwed into the limiting rod (32).

4. The infusion set puncture needle fixation device according to claim 3, characterized in that: The control structure (33) includes a slotted frame (331), which is slidably fitted with a sleeve (31) and two straight rods (3311) thereon respectively engaging with the outer peripheral walls of two limiting rods (32).

5. The infusion set puncture needle fixation device according to claim 4, characterized in that: The plane of the slotted frame (331) is perpendicular to the axis of the sleeve (31), and the threads in the two threaded sleeves (311) are turned in opposite directions.

6. The infusion set puncture needle fixation device according to claim 5, characterized in that: The outer peripheral wall of the buckle (31) is fixedly connected to a guide sleeve (312) that slides with the straight rod (3311).

7. The infusion set puncture needle fixation device according to claim 5, characterized in that: A handle (33121) is fixedly connected to one side of the crossbar (3312) on the slotted frame (331).

Images