Newborn umbilical vein puncture needle

Abstract

The utility model discloses a neonatal umbilical vein puncture needle, which comprises a needle stem and a pintle, the rear end of the needle stem is connected with the pintle, the front end of the needle stem is provided with an anti-dropping small ball, the anti-dropping small ball is hollow, the rear end of the anti-dropping small ball is communicated with the needle stem, and the front end of the anti-dropping small ball is provided with a liquid outlet. The utility model can simultaneously solve the problems of easy blood vessel puncture, slow needle insertion, easy slippage, liquid leakage and the like in the prior art.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to a neonatal umbilical vein puncture needle. Background Art

[0002] Umbilical vein puncture is one of the common operations for neonatal rescue in the delivery room. During the rescue of neonates, whether the venous channel can be opened quickly and timely, and whether the drug can be administered in time and rapidly, is one of the keys to the success of the rescue. There are generally two umbilical arteries and one umbilical vein in the umbilical cord. The arterial lumen is smaller and the venous lumen is larger. At full-term pregnancy, the umbilical vein lumen is generally 7-8 mm. The umbilical vein is the first choice for opening the vein for neonatal rescue. At present, there is no special needle for the umbilical vein on the market. Clinically, an indwelling needle or a disposable epidural anesthesia catheter is used for puncture. The advantage of the indwelling needle is that the needle stem is hard and straight, and it is easy to insert, but the needle tip is sharp and it is easy to puncture the blood vessels and cause harm to the newborn. The advantage of the disposable epidural anesthesia catheter is that the puncture head is relatively smooth and will not puncture the umbilical cord. It has a scale, which is easy to observe the insertion depth. The disadvantage is that the catheter is not hard enough, and it is difficult to insert because the umbilical cord is very soft and slippery. Both of them need to trim the umbilical cord section before insertion to better expose the umbilical vein for easy insertion. After insertion, the umbilical cord is very soft and slippery, so the umbilical cord with the inserted puncture needle needs to be tied and fixed. The whole process requires two people to complete the operation together. Needle insertion and fixation take a long time, and the puncture needle is still easy to slip off and even leak. In the rescue process, time is life. From the doctor's order to open intravenous access to the nurse's completion, it takes an average of 3-4 minutes. The puncture technology is extremely demanding during the rescue of newborns, especially for severely asphyxiated newborns, also called dying babies, with extremely poor peripheral circulation. Even nursing staff with more than a few years of experience in neonatal work still need a certain amount of time to complete.

[0003] Chinese patent CN 204275169 U discloses a neonatal umbilical vein puncture needle, including a needle stem, a butterfly handle, a needle seat, and a screw cap. The tail end of the needle stem is fixedly connected to the front end of the butterfly handle, the tail of the butterfly handle is connected to the front end of the needle seat in a sealed rotation, and the screw cap is screwed with the tail of the needle seat; the centers of the needle stem, the butterfly handle, and the needle seat are interconnected, and the outer part of the needle stem is tightly covered with a soft protective sleeve, the end of the soft protective sleeve is connected or connected to the butterfly handle, and the front end of the soft protective sleeve extends 2 to 3 mm from the front end of the needle stem; the front end of the needle stem is a blunt puncture end. The patent adds a soft protective sleeve, which can prevent the puncture needle from slipping to a certain extent, but the soft material still has a certain influence on the needle insertion speed, and there is still a problem of leakage. Utility Model Content

[0004] The utility model aims to provide a neonatal umbilical vein puncture needle, which can solve the problems of easy puncture of blood vessels, slow needle insertion, easy slippage, and liquid leakage in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A newborn umbilical vein puncture needle comprises a needle stem and a needle plug. The rear end of the needle stem is connected to the needle plug, the front end of the needle stem is provided with an anti-dropping ball, the anti-dropping ball is hollow inside, the rear end is connected to the needle stem, and the front end is provided with a liquid outlet.

[0007] Preferably, the needle stem is bent at 80-100 degrees.

[0008] Preferably, the distance between the bend and the liquid outlet of the anti-falling ball is 2.5 cm.

[0009] Preferably, the diameter of the anti-shedding balls is 5 to 6 mm.

[0010] Preferably, the needle stem is provided with scales.

[0011] Preferably, a butterfly-shaped handle is provided on the outer side wall of the pintle.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model arranges an anti-falling ball at the front end of the needle stem to replace the original needle tip. On the one hand, it can prevent the original needle tip from being sharp and easy to puncture the blood vessel; on the other hand, it retains the hardness and straightness of the puncture needle, which is easy to insert and improves the efficiency of needle insertion; thirdly, a certain limiting relationship is formed between the anti-falling ball and the hemostatic forceps, so that the puncture needle will not fall off from the umbilical cord, and the fixing effect is good; fourthly, the anti-falling ball has a certain blocking effect on the umbilical vein, solving the leakage problem; fifthly, after the puncture needle enters the umbilical vein, the anti-falling ball can be used to timely confirm the needle position and judge the position of the hemostatic forceps, so as to quickly establish a drug release or blood draw channel.

[0014] 2. The needle stem of the utility model is designed as a bent structure, which can support the umbilical cord after the needle is inserted and fixed, ensuring that the umbilical vein channel is always open, so that medication can be used smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0016] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of the present utility model;

[0017] Figure 3 This is a schematic diagram of the structure of Embodiment 3 of the present utility model;

[0018] Figure 4 This is a state diagram of connecting a syringe to Embodiment 3 of the present utility model;

[0019] Figure 5 This is a usage status diagram of Example 3 of the utility model.

[0020] The serial numbers and names in the figure are as follows: 1-needle stem; 2-needle plug; 3-anti-drop ball; 4-butterfly handle. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1

[0023] A newborn umbilical vein puncture needle, such as Figure 1 As shown, it includes a needle stem 1 and a needle plug 2. The rear end of the needle stem 1 is connected to the needle plug 2, and the needle plug 2 is used to connect a syringe or a three-way tube or to seal it with a heparin cap; the front end of the needle stem 1 is provided with an anti-falling ball 3, the anti-falling ball 3 is hollow inside, the rear end is connected to the needle stem 1, and the front end is provided with a liquid outlet. The anti-falling ball 3 is used to replace the original needle tip. On the one hand, it can prevent the original needle tip from being sharp and easy to puncture the blood vessel; on the other hand, it retains the hardness and straightness of the puncture needle, which is easy to insert and improves the efficiency of needle insertion; thirdly, a certain limiting relationship is formed between the anti-falling and the hemostatic clamp, so that the puncture needle will not fall off from the umbilical cord, and the fixing effect is good; fourthly, after the puncture needle enters the umbilical vein, the anti-falling ball can timely confirm the needle position, and judge the position of the hemostatic clamp, so as to quickly establish a drug release or blood draw channel.

[0024] Since the width of the umbilical vein is generally 7 to 8 mm, in this embodiment, the diameter of the anti-dropout ball 3 is 6 mm, which can not only ensure needle insertion, but also the rear end of the anti-dropout ball 3 can play a certain blocking role on the umbilical vein, thus solving the leakage problem.

[0025] In this embodiment, the needle stem 1 is provided with a scale to facilitate the operator to judge the needle insertion depth more intuitively.

[0026] Example 2

[0027] A newborn umbilical vein puncture needle is basically the same as that of Example 1, except that Figure 2 As shown, in this embodiment, a butterfly handle 4 is provided on the outer side wall of the needle plug 2 to facilitate the operator to take the puncture needle.

[0028] Example 3

[0029] A newborn umbilical vein puncture needle is basically the same as that of Example 2, except that Figure 3 As shown, in this embodiment, the needle stem 1 is bent at 90°, and the length from the bending point to the liquid outlet of the anti-dropping ball 3 is 2.5 cm, which is consistent with the length of the umbilical cord reserved after umbilical cord cutting.

[0030] The working process of this embodiment is:

[0031] Clamp and cut the umbilical cord with a vascular clamp at a distance of 3 cm from the umbilical wheel; spread a small-hole towel, disinfect the cut surface of the umbilical cord and find the umbilical vein; insert the umbilical vein puncture needle into the umbilical vein through the anti-disconnection ball 3, observe the insertion scale, touch the position of the anti-disconnection ball from the outer wall of the umbilical cord, and the insertion depth should be to the bend of the needle stem 1; then clamp the umbilical cord between the anti-disconnection ball 3 and the bend with a hemostatic forceps, and the catheterization is completed. After the catheterization is completed, take the medicine immediately according to the doctor's instructions. The needle plug 2 can be directly connected to the syringe for intravenous push, such as Figure 4 As shown. The drug can also be dripped intravenously; when multiple drugs need to be used, the needle plug 2 can also be connected to a three-way tube; when the venous access needs to be kept open, the heparin cap can also be used to close the needle plug 2 in case of emergency. It only takes one minute from the doctor's order to the medication, and the channel can be quickly established, and medication or blood drawing operations can be performed. When withdrawing, first loosen the hemostatic forceps, clamp the umbilical cord under the anti-detachment ball 3, and then withdraw the puncture needle. The whole process does not damage the umbilical cord and can quickly establish the umbilical vein channel. Because the umbilical cord is very slippery and soft, ordinary puncture needles cannot guarantee that the umbilical vein channel is always open. With the puncture needle of the utility model, since the needle stem 1 is provided with a bending design, combined with the hemostatic forceps and the pad, such as Figure 5 As shown, it can support the umbilical cord and ensure that the umbilical vein channel is always open, so that medication can be used smoothly.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A neonatal umbilical vein puncture needle, comprising a needle stem (1) and a needle plug (2), wherein the rear end of the needle stem (1) is connected to the needle plug (2), characterized in that: The front end of the needle stem (1) is provided with an anti-dropping ball (3), the interior of the anti-dropping ball (3) is hollow, the rear end thereof is connected with the needle stem (1), and the front end is provided with a liquid outlet.

2. The neonatal umbilical vein puncture needle according to claim 1, characterized in that: The needle stem (1) is bent at an angle of 80 to 100 degrees.

3. The neonatal umbilical vein puncture needle according to claim 2, characterized in that: The length between the bending part and the liquid outlet of the anti-falling ball (3) is 2.5 cm.

4. The neonatal umbilical vein puncture needle according to claim 1, characterized in that: The diameter of the anti-falling ball (3) is 5 to 6 mm.

5. The neonatal umbilical vein puncture needle according to claim 1, characterized in that: The needle stem (1) is provided with scales.

6. The neonatal umbilical vein puncture needle according to claim 1, characterized in that: A butterfly-shaped handle (4) is provided on the outer side wall of the pintle (2).

Images