CN205569435U - Remaining needle - Google Patents

Abstract

An indwelling needle, including a needle head with inner and outer needles, a catheter, a tee, a needle-free joint, and a liquid stop clip, the needle head and the tee joint are connected through a catheter, and the needle-free joint is connected to the tee joint, and the catheter is covered with an outer tube , the outer tube includes the same front and rear sections, and the bottoms of the two sections of the outer tube are connected by a connecting rod made of the same material as the outer tube, and a liquid stop clamp is installed on the connecting rod. The beneficial effect of the utility model is that the indwelling needle can be installed and used more conveniently and delicately. The most important thing is that the liquid stop clip part of the indwelling needle of the present invention can be operated with one hand, which provides great convenience for users.

Description

an indwelling needle

technical field

The utility model belongs to the technical field of medical infusion products, in particular to an indwelling needle.

Background technique

The use of indwelling needles can reduce the pain and fear of injections caused by repeated venipuncture in children, relieve the anxiety of parents, facilitate clinical medication, rescue medication for acute and critical patients, reduce the workload of nurses, and reduce the risk of children's anxiety. Pain, so intravenous indwelling needles are widely used clinically.

The indwelling needle generally includes a needle with an inner and outer needle, a catheter, a stop clip, a tee, and a needleless joint. The needle and the tee are connected by a catheter. There is a stop clip on the catheter. The liquid-stopping clip on the indwelling needle currently used needs to be placed on the surface of the human body for a long time, so all the accessories of the indwelling needle need to be simple and compact, so the liquid-stopping clip reduces some parts with weak functions, and two Only hold the flexible catheter with your hands to clamp the liquid stop clip.

Contents of the invention

The purpose of the utility model is to provide an indwelling needle with simple structure and simple operation, especially the catheter on the indwelling needle is provided with an outer tube which can be operated with one hand to stop the liquid clamp.

The technical scheme of the utility model is: an indwelling needle, including a needle head with inner and outer needles, a catheter, a tee, a needleless joint, and a liquid-stopping clip, the needle head and the tee joint are connected through the catheter, and the needleless joint is connected to the tee joint , the catheter is covered with an outer tube, the outer tube includes the same front and rear sections, the bottoms of the two sections of the outer tube are connected by a connecting rod made of the same material as the outer tube, and a liquid stop clip is installed at the connecting rod. The outer tube is made of ABS material. Compared with the original catheter, the outer tube of ABS material has rigid characteristics, and can be pushed to a specific direction by two force points, that is, two fingers, which is the opposite direction of the movement direction of the liquid stop clip. A connecting rod between the two outer tubes allows the catheter to be exposed to the rigid outer tube, allowing the stop clip to act on the catheter.

The liquid-stop clamp is provided with a draw-in groove with one end wide and the other end narrow. The wide end of the draw-in groove is provided with an accommodating groove allowing liquid circulation in the conduit. There are openings on the top to allow the catheter to enter and exit. The accommodating groove is matched with the conduit, and the width of the liquid stop groove is twice the thickness of the conduit wall. The catheter vertically passes through the slot of the liquid stop clip. When the catheter is located in the holding groove of the slot, the liquid in the catheter passes through the catheter smoothly; when the catheter moves to the liquid stop slot, the tube is closed under the extrusion of the liquid stop slot. , Prohibit the passage of liquid in the catheter.

The length of the connecting rod matches the width of the liquid stop clamp, the outer diameter of the conduit matches the inner diameter of the outer tube, and the total length of the outer tube and the connecting rod is 1/3-1/5 of the length of the conduit. The length of the connecting rod matches the width of the liquid stop clip so that the liquid stop clip and the catheter maintain a vertical relationship without shaking left and right, and the length of the connecting rod is too short to prevent the liquid stop clip from entering between the two sections of the outer tube. The outer diameter of the guide tube matches the inner diameter of the outer tube so that the guide tube will not slide easily inside the outer tube.

The width of the connecting rod is equal to the width of the liquid stop groove. The width of the connecting rod is equal to the width of the liquid stop groove, so that the connecting rod can pass through the liquid stop groove of the liquid stop clip smoothly, and the strength of the connecting rod is increased to the greatest extent, so that it is not easy to be broken.

The utility model has the advantages and positive effects that: due to the adoption of the above technical scheme, the indwelling needle can be installed and used more conveniently and delicately. The most important thing is that the liquid stop clip part of the indwelling needle of the present invention can be operated with one hand, which provides great convenience for users.

Description of drawings

Fig. 1 is the structural representation of indwelling needle of the present utility model

Figure 2 is a schematic diagram of the liquid stop clamp

Figure 3 is a left side view of the outer catheter

Figure 4 is a front view of the outer catheter

Figure 5 is a top view of the outer catheter

In the picture:

1. Needle 2. Catheter 3. Liquid stop clip

4. Tee 5. Needleless connector 21. Outer tube

22. Connecting rod 31. Accommodating tank 32. Liquid stop tank

detailed description

As shown in Figure 1, an indwelling needle provided by the utility model includes a needle head 1 with an inner and outer needle, a catheter 2, a tee 4, a needleless joint 5, and a liquid stop clip 3, and the needle head 1 and the tee 4 pass through the catheter 2 connection, the needleless joint 5 is connected with the tee 4, the catheter 2 is covered with an outer tube 21, the outer tube 21 includes the same front and rear sections, and the bottom of the two sections of the outer tube passes through a connecting rod 22 made of the same material as the outer tube 21 Connected, the connecting rod 22 is installed with a liquid stop clip 3 .

As shown in Figure 2, the liquid-stopping clip 3 is provided with a draw-in groove with one end wide and the other end narrow, the wide end of the draw-in groove is provided with an accommodating groove 31 that allows liquid circulation in the conduit, and the narrow end of the draw-in groove is provided with a groove that prohibits the flow of liquid in the conduit. There is a liquid stop groove 32, and an opening for allowing the conduit to enter and exit is provided on the accommodating groove 31.

As shown in Figures 1, 3, 4, and 5, the length of the connecting rod 22 matches the width of the liquid stop clip 3, and the liquid stop clip 3 can move perpendicular to the axial direction of the catheter 2 between the two sections of the outer tube. The outer diameter of the conduit 2 matches the inner diameter of the outer tube 21 , and the total length of the outer tube 21 and the connecting rod 22 is 1/3 of the length of the conduit 2 . The width of the connecting rod 22 is equal to the width of the liquid stop groove 32 .

The working process of this example: when in use, the operator puts the index finger and middle finger of one hand on the front and back sections of the outer tube 21 respectively, puts the thumb on the end of the liquid stop clip 3, and pushes the thumb in the direction of the index finger and middle finger , so that the soft conduit 2 moves in the slot of the liquid stop clamp 3 to realize the function of controlling the flow of liquid in the conduit 2 .

An embodiment of the present utility model has been described in detail above, but the content described is only a preferred embodiment of the present utility model, and cannot be considered as limiting the implementation scope of the present utility model. All equal changes and improvements made according to the application scope of the utility model should still belong to the scope covered by the patent of the utility model.

Claims (6)

1. An indwelling needle, comprising a needle head with an inner and outer needle, a catheter, a tee, a needle-free joint, and a liquid stop clip, the needle head and the tee joint are connected through a catheter, and the needle-free joint is connected with the tee joint, and it is characterized in that: The catheter is covered with an outer tube. The outer tube includes the same front and rear sections. The bottoms of the two sections of the outer tube are connected by a connecting rod made of the same material as the outer tube. A liquid stop clip is installed on the connecting rod. 2. An indwelling needle according to claim 1, characterized in that: the liquid-stopping clamp is provided with a slot with one end wide and the other narrow, and the wide end of the slot is provided with an accommodating slot that allows the liquid in the catheter to circulate. The narrow end of the groove is provided with a liquid-stop groove for prohibiting the circulation of the liquid in the conduit, and the accommodating groove is provided with an opening for allowing the conduit to enter and exit. 3. An indwelling needle according to claim 2, characterized in that: the accommodating groove is matched with the catheter, and the width of the liquid stop groove is twice the thickness of the catheter wall. 4. An indwelling needle according to claim 1, characterized in that: the length of the connecting rod matches the width of the liquid stop clamp, the outer diameter of the catheter matches the inner diameter of the outer tube, and the outer tube and the connecting rod The total length is 1/3-1/5 of the catheter length. 5. An indwelling needle according to claim 1, characterized in that: the outer tube is made of ABS material. 6. The indwelling needle according to claim 1, wherein the width of the connecting rod is equal to the width of the liquid stop groove.