CN218515971U - Novel three-way valve vein indwelling needle - Google Patents

Abstract

The utility model discloses a novel three-way valve vein indwelling needle in the field of indwelling needles, which comprises a catheter, one end of the catheter is fixedly connected with a steel needle, the other end of the catheter is connected with a transparent tee, and the surface of the catheter is There is a through hole, the inside of the through hole is fixedly connected with a baffle, the front of the baffle is fixedly connected with the valve body, the end of the transparent tee away from the catheter is connected with an extension tube, and the other end of the extension tube is It is connected with the infusion tee. In the utility model, through the catheter and the steel needle, it is convenient to infuse the patient, through the transparent tee, the effect of connecting the catheter and the extension tube is achieved, through the through hole, the baffle and the valve body, it is convenient to control the catheter, and it is also convenient to The blood return and infusion are controlled, and the infusion tee is convenient for infusion, thus solving the problem that the indwelling needle will return to blood, and if the time of blood return is too long, the needle will be blocked, resulting in the interruption of the infusion, and the problem of having to replace the infusion site.

Description

A new type of three-way valve venous indwelling needle

technical field

The utility model relates to the field of indwelling needles, in particular to a novel three-way valve vein 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. Facing the special group of children, the indwelling time of intravenous indwelling needles and the comfort of children have become the most concerned issues for nurses and parents, and they are also the symbol and promotion of the successful use of indwelling needles. premise.

In clinical practice, we often encounter such a situation—the indwelling needle returns to blood, and the indwelling needle returns to blood. Not only the family members are very nervous and worried, but it also brings a lot of trouble to the work of the nursing staff. If the blood return time is too long, the needle will be blocked. , resulting in the interruption of the infusion, and the infusion site has to be replaced again. In severe cases, small blood clots will form, causing immeasurable consequences. Therefore, those skilled in the art provide a novel three-way valve venous indwelling needle to solve the problems raised in the above-mentioned background technology.

Utility model content

The purpose of this utility model is to provide a novel three-way valve venous indwelling needle to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

A new type of three-way valve venous indwelling needle, including a catheter, one end of the catheter is fixedly connected with a steel needle, the other end of the catheter is connected with a transparent tee, the surface of the catheter is provided with a through hole, and the through hole The inside of the baffle is fixedly connected with a baffle, the front of the baffle is fixedly connected with the valve body, the end of the transparent tee away from the catheter is connected with an extension tube, the other end of the extension tube is connected with an infusion tee, and the transparent tee is connected with an extension tube. The surface of the tee is fixedly connected with a connecting plate, and the two sides of the connecting plate are respectively fixedly connected with a first strap and a second strap.

As a further solution of the present invention: the top of the transparent tee is fixedly connected to the needle-holding handle, and the surface of the needle-holding handle is provided with anti-skid lines.

As a further solution of the present utility model: a placement groove is provided on the surface of the catheter, and a sliding ball is arranged inside the placement groove, and the sliding ball is located inside the valve body.

As a further solution of the present utility model: one side of the first strap is fixedly connected with a first Velcro, and one side of the second strap is fixedly connected with a second Velcro used in conjunction with the first Velcro .

As a further solution of the present invention: the surface of the extension pipe is provided with a water-stop clip.

As a further solution of the utility model: the surface of the infusion tee is provided with a sheath.

Compared with the prior art, the beneficial effects of the utility model are:

1. In the utility model, through the catheter and the steel needle, it is convenient to infuse the patient, through the transparent tee, the effect of connecting the catheter and the extension tube is achieved, through the through hole, the baffle and the valve body, it is convenient to control the catheter, and also It is convenient to control the blood return infusion, through the infusion tee, it is convenient to carry out the infusion, and through the connecting plate, the first strap and the second strap, it is convenient to fix the indwelling needle, thus solving the problem of blood return in the indwelling needle, and the blood return time is too long , It will block the needle, cause the infusion to be interrupted, and the infusion site has to be replaced again.

2. In this utility model, the needle holder is convenient for people to take the transparent tee, and it is also convenient to use the indwelling needle. The fixing effect on the valve body can be increased by placing the groove and the sliding ball. Through the first Velcro and The second Velcro is convenient for connecting the first strap and the second strap, and it is convenient for controlling the extension tube through the water-stop clip.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a schematic side view of the structural baffle of the present invention;

Fig. 3 is a partial schematic diagram of the connection between the through hole and the valve body of the present invention;

Fig. 4 is a partial sectional view of the catheter of the present invention;

Fig. 5 is a three-dimensional schematic diagram of the catheter of the present invention.

In the figure: 1. catheter; 2. steel needle; 3. transparent tee; 4. through hole; 5. baffle; 6. valve body; 7. extension tube; 8. infusion tee; 9. connecting plate; 10 1, the first strap; 11, the second strap; 12, the needle handle; 13, the placement slot; 14, the slider; 15, the first Velcro; 16, the second Velcro;

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1 to 5. In the embodiment of the present utility model, a new type of three-way valve venous indwelling needle includes a catheter 1, one end of the catheter 1 is fixedly connected with a steel needle 2, and the other end of the catheter 1 is connected with a transparent tee 3 , the surface of the catheter 1 is provided with a through hole 4, the inside of the through hole 4 is fixedly connected with a baffle 5, the front of the baffle 5 is fixedly connected with a valve body 6, the valve body 6 is a strip structure, and the opening is arc-shaped, The end of the transparent tee 3 away from the conduit 1 is connected with an extension tube 7, and the other end of the extension tube 7 is connected with an infusion tee 8, and the surface of the transparent tee 3 is fixedly connected with a connecting plate 9, and the two sides of the connecting plate 9 are fixedly connected respectively. There is a first strap 10 and a second strap 11 .

Through the catheter 1 and the steel needle 2, it is convenient to infuse the patient; through the transparent tee 3, the effect of connecting the catheter 1 and the extension tube 7 is achieved; through the through hole 4, the baffle 5 and the valve body 6, it is convenient to control the catheter 1 , it is also convenient to control the blood return infusion, through the infusion tee 8, it is convenient to carry out the infusion, and through the connecting plate 9, the first strap 10 and the second strap 11, it is convenient to fix the indwelling needle, thus solving the problem that the indwelling needle will appear Blood return, if the blood return time is too long, the needle will be blocked, resulting in the interruption of the infusion, and the infusion site has to be replaced again.

In this embodiment, the top of the transparent tee 3 is fixedly connected to the needle-holding handle 12, and the surface of the needle-holding handle 12 is provided with anti-skid lines. Through the needle-holding handle 12, it is convenient for people to take the transparent three-way 3, and it is also convenient for indwelling Needle for use.

In this embodiment, the surface of the catheter 1 is provided with a placement groove 13, and the inside of the placement groove 13 is provided with a sliding ball 14, and the sliding ball 14 is located inside the valve body 6. By placing the groove 13 and the sliding ball 14, the The fixation effect on the valve body 6.

In this embodiment, a first Velcro 15 is fixedly connected to one side of the first strap 10, and a second Velcro 16 used in conjunction with the first Velcro 15 is fixedly connected to one side of the second strap 11. The first Velcro 15 and the second Velcro 16 are convenient for connecting the first strap 10 and the second strap 11 .

In this embodiment, the surface of the extension pipe 7 is provided with a water-stop clip 17 , and the extension pipe 7 is conveniently controlled through the water-stop clip 17 .

In this embodiment, the surface of the infusion tee 8 is provided with a sheath.

The working principle of the utility model is: take the needle-holding handle 12, insert the catheter 1 into the patient's vein through the steel needle 2, the catheter 1 forms a closed shape after pushing the needle, and the valve body 6 opens outwards when the pressure is positive. Infusion can be performed; under negative pressure, the valve body 6 opens inwards to draw back blood; when balanced, neither blood backflow nor air enters, and when the valve body 6 is in the through hole 4, it passes through the baffle 5 The valve body 6 is also supported by the sliding ball 14. After the indwelling needle is fixed, the first strap 10 and the second strap 11 are fixed on the patient's arm. The first strap 10 and the second strap 11 is fixed by the first Velcro 15 and the second Velcro 16, which is also convenient for fixing the indwelling needle.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. The equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (6)

1. A novel three-way valve venous indwelling needle, comprising a catheter (1), characterized in that: one end of the catheter (1) is fixedly connected with a steel needle (2), and the other end of the catheter (1) is connected with a Transparent tee (3), the surface of the conduit (1) is provided with a through hole (4), the inside of the through hole (4) is fixedly connected with a baffle (5), the front of the baffle (5) The valve body (6) is fixedly connected, the end of the transparent tee (3) away from the catheter (1) is connected with an extension tube (7), and the other end of the extension tube (7) is connected with an infusion tee (8) , the surface of the transparent tee (3) is fixedly connected with a connecting plate (9), and the two sides of the connecting plate (9) are respectively fixedly connected with a first strap (10) and a second strap (11). 2. A novel three-way valve venous indwelling needle according to claim 1, characterized in that: the top of the transparent tee (3) is fixedly connected to the needle-holding handle (12), and the needle-holding handle (12) The surface is provided with anti-skid lines. 3. A novel three-way valve venous indwelling needle according to claim 1, characterized in that: the surface of the catheter (1) is provided with a placement groove (13), and the inside of the placement groove (13) is provided with a sliding The ball (14), and the sliding ball (14) is located inside the valve body (6). 4. A novel three-way valve venous indwelling needle according to claim 1, characterized in that: one side of the first strap (10) is fixedly connected with a first Velcro (15), and the second One side of the strap (11) is fixedly connected with a second magic sticker (16) used in conjunction with the first magic sticker (15). 5. A novel three-way valve venous indwelling needle according to claim 1, characterized in that: a water-stop clip (17) is provided on the surface of the extension tube (7). 6. A novel three-way valve venous indwelling needle according to claim 1, characterized in that: the surface of the infusion tee (8) is provided with a sheath.

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