A disposable intravenous indwelling needle external interface with protection function

Abstract

The utility model discloses a disposable intravenous indwelling needle external interface with protection function belongs to indwelling needle technical field, and it includes indwining needle interface, and the bottom fixed connection of indwining needle interface has infusion pipe, and the sleeve of infusion pipe is equipped with sleeve, and the sleeve is equipped with knob, and the inside of knob is provided with second thread, and the top fixed connection of sleeve has two clamps, and two clamps are located the both sides of infusion pipe respectively, and the clamp is flexible material, and be provided with first thread on the clamp. This disposable intravenous indwelling needle external interface with protection function is through setting up clamp, first thread, knob and second thread, and two clamps will be close to each other because of the extrusion of knob, and two clamps extrude infusion pipe to make the liquid in the inside of infusion pipe no longer flow, and the indwelling needle external interface can carry out anti -backflow protection, prevents blood backflow to cause pipeline blockage in indwelling needle, and the subsequent infusion treatment work is convenient.

Description

Technical Field

[0001] This utility model belongs to the field of indwelling needle technology, specifically a disposable intravenous indwelling needle external interface with protective function. Background Technology

[0002] A disposable intravenous catheter is a medical device used for intravenous infusion or injection. It is primarily used to establish a temporary venous access within a patient for procedures such as intravenous infusion, blood transfusion, drug injection, or blood sample collection. It is a common medical supply widely used in hospitals, clinics, and other medical facilities. In existing technology, disposable intravenous catheters typically include a Y-shaped external interface with three interconnected ports: a first port for connecting a heparin cap, a second port for connecting a sterile cap, and a third port for connecting the infusion tubing.

[0003] If blood backflow prevention measures are not taken after the infusion is completed at the external interface of a disposable intravenous catheter, blood may flow back into the catheter and easily coagulate into a thrombus, causing blockage and affecting subsequent infusion therapy. Utility Model Content

[0004] To overcome the above-mentioned defects, this utility model provides a disposable intravenous indwelling needle external interface with protective function, which solves the problem that if blood backflow prevention treatment is not performed after the infusion is completed, the blood will flow back into the indwelling needle and easily coagulate into a thrombus inside the tube, causing the tube to become blocked and affecting subsequent infusion therapy.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a disposable intravenous indwelling needle external interface with protective function, including an indwelling needle interface, an infusion tube fixedly connected to the bottom of the indwelling needle interface, a sleeve fitted on the infusion tube, a knob fitted on the sleeve, a second thread provided inside the knob, two clamps fixedly connected to the top of the sleeve, the two clamps being located on both sides of the infusion tube respectively, the clamps being made of flexible material, and a first thread provided on the clamps, the first thread engaging with the second thread.

[0006] As a further embodiment of this utility model: the indwelling needle interface is connected to the infusion tube.

[0007] As a further embodiment of this utility model: the knob is provided with a number of grooves, which are evenly distributed on the knob.

[0008] As a further embodiment of this utility model: the bottom of the sleeve is fixedly connected to a cylinder body, and the knob is located at the top of the cylinder body.

[0009] As a further embodiment of this utility model: an anti-slip pad is fixedly connected to the outside of the cylinder, and the anti-slip pad is made of plastic.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This disposable intravenous catheter external interface with protective function is designed with a clamp, a first thread, a knob, and a second thread. In use, first, pinch the anti-slip pad to fix the cylinder. Slide the knob to move it upwards. When the knob is close to the clamp, rotate it. Because the second thread engages with the first thread, the knob moves upwards as it is rotated. Since the clamp is made of flexible material and can deform, the two clamps will move closer together due to the pressure of the knob as the knob moves upwards. The two clamps compress the infusion tubing, thus preventing the fluid inside the tubing from flowing out. This catheter external interface provides anti-backflow protection, preventing blood from flowing back into the catheter and causing blockage, facilitating subsequent infusion therapy.

[0012] 2. This disposable intravenous catheter external interface with protective function is designed with an anti-slip pad, a cylindrical body, a knob, and a groove. During use, first pinch the anti-slip pad to fix the cylindrical body, then slide the knob upwards. When the knob approaches the clamp, rotate it. Because the second thread engages with the first thread, the knob moves upwards as it is rotated. Since the clamp is made of flexible material, it can deform. Therefore, as the knob moves upwards, the two clamps will move closer together due to the pressure of the knob, compressing the infusion tube and preventing the fluid from flowing out. The groove increases friction, making it easier for personnel to rotate the knob and improving ease of operation. The plastic anti-slip pad prevents the cylindrical body from slipping out of the hand. By pinching the anti-slip pad to fix the cylindrical body, and because the clamp is fixed to the cylindrical body, the knob and clamp rotate relative to each other when the knob is rotated. This rotation, through the engagement of the first and second threads, moves the knob upwards, ensuring the normal operation of subsequent procedures. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A;

[0015] Figure 3 This is a three-dimensional structural diagram of the sleeve of this utility model;

[0016] Figure 4 This is a three-dimensional structural diagram of the knob of this utility model;

[0017] In the diagram: 1. Indwelling needle interface; 2. Infusion tube; 3. Sleeve; 4. Knob; 5. Cylinder body; 6. Anti-slip pad; 7. Clamping plate; 8. First thread; 9. Second thread; 10. Groove. Detailed Implementation

[0018] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0019] like Figure 1-4 As shown, this utility model provides a technical solution: a disposable intravenous indwelling needle external interface with protective function, including an indwelling needle interface 1, an infusion tube 2 fixedly connected to the bottom of the indwelling needle interface 1, a sleeve 3 sleeved on the infusion tube 2, and the indwelling needle interface 1 and the infusion tube 2 being connected.

[0020] A knob 4 is fitted onto the sleeve 3. Several grooves 10 are provided on the knob 4. The grooves 10 increase friction, making it easier for personnel to rotate the knob 4 and improving the ease of operation. Several grooves 10 are evenly distributed on the knob 4. The knob 4 has a second thread 9 inside. Because of the second thread 9, the meshing action between the second thread 9 and the first thread 8 allows the knob 4 to fit tightly against the two clamping plates 7, thereby improving the stability of the knob 4. Two clamping plates 7 are fixedly connected to the top of the sleeve 3.

[0021] Two clamps 7 are located on both sides of the infusion tube 2. The clamps 7 are made of flexible material. The bottom of the sleeve 3 is fixedly connected to the cylinder 5. Because of the cylinder 5, the cylinder 5 can block the knob 4, prevent the knob 4 from falling off the sleeve 3, and ensure the normal operation of the knob 4. The knob 4 is located at the top of the cylinder 5.

[0022] The clamping plate 7 is provided with a first thread 8, which meshes with a second thread 9. An anti-slip pad 6 is fixedly connected to the outside of the cylinder 5. The anti-slip pad 6 is made of plastic and can play an anti-slip role, preventing the cylinder 5 from slipping out of your hand. Moreover, the cylinder 5 is fixed by pinching the anti-slip pad 6. Since the clamping plate 7 is fixed to the cylinder 5, when the knob 4 is turned, the knob 4 and the clamping plate 7 can rotate relative to each other. When the knob 4 is turned, the engagement of the first thread 8 and the second thread 9 can move the knob 4 upward, ensuring the normal operation of subsequent work.

[0023] The working principle of this utility model is as follows:

[0024] When in use, first pinch the anti-slip pad 6 to fix the cylinder 5, slide the knob 4 to move the knob 4 upward, and turn the knob 4 when the knob 4 is close to the clamping plate 7. Since the second thread 9 is engaged with the first thread 8, the knob 4 will move upward when it is turned. Since the clamping plate 7 is a flexible material that can deform, the two clamping plates 7 will move closer to each other due to the squeezing of the knob 4 when the knob 4 moves upward. The two clamping plates 7 squeeze the infusion tube 2, thereby stopping the flow of liquid inside the infusion tube 2.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A disposable intravenous catheter external interface with protective function, comprising an indwelling needle interface (1), characterized in that: The indwelling needle interface (1) is fixedly connected to the bottom of the infusion tube (2), and a sleeve (3) is fitted on the infusion tube (2). A knob (4) is fitted on the sleeve (3). A second thread (9) is provided inside the knob (4). Two clamps (7) are fixedly connected to the top of the sleeve (3). The two clamps (7) are located on both sides of the infusion tube (2). The clamps (7) are made of flexible material. A first thread (8) is provided on the clamps (7). The first thread (8) and the second thread (9) mesh with each other.

2. The disposable intravenous catheter external interface with protective function according to claim 1, characterized in that: The indwelling needle interface (1) is connected to the infusion tube (2).

3. The disposable intravenous catheter external interface with protective function according to claim 1, characterized in that: The knob (4) has several grooves (10) evenly distributed on it.

4. The disposable intravenous indwelling needle external interface with protective function according to claim 1, characterized in that: The sleeve (3) is fixedly connected to the bottom of the cylinder (5), and the knob (4) is located on the top of the cylinder (5).

5. The disposable intravenous indwelling needle external interface with protective function according to claim 4, characterized in that: An anti-slip pad (6) is fixedly connected to the outside of the cylinder (5), and the anti-slip pad (6) is made of plastic.

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