CN217067187U - Lumbar cisterna drainage puncture needle capable of establishing subcutaneous tunnel - Google Patents

Abstract

The lumbar cisterna magna drainage puncture needle capable of establishing the subcutaneous tunnel comprises a lumbar cisterna magna drainage tube and a puncture needle, wherein the two ends of the lumbar cisterna magna drainage tube are respectively the inner end and the outer end, and the inside of the lumbar cisterna magna drainage tube is a drainage cavity for leading out cerebrospinal fluid and/or hydrocephalus; the method is characterized in that: one end of the puncture needle is a puncture tip, the other end of the puncture needle is fixed with a connecting rod, the connecting rod is used for being inserted into a drainage cavity of the lumbar cisterna drainage tube, and the outer diameter of the connecting rod is larger than the inner diameter of the lumbar cisterna drainage tube; a thin film outer cover for wrapping the joint of the connecting rod and the lumbar cisterna magna drainage tube is fixed on the puncture needle at one end of the connecting rod. The lumbar cisterna magna drainage puncture needle of the utility model realizes the firm connection between the lumbar cisterna magna drainage tube and the puncture needle; the connection part is in smooth transition through the film outer cover, and other tissues cannot be scraped in the process that the puncture needle is inserted into the subcutaneous part of a patient to establish a subcutaneous tunnel, and the lumbar cisterna drainage tube and the puncture needle cannot fall off accidentally.

Description

Lumbar Drainage Needle for Subcutaneous Tunneling

technical field

The utility model relates to a lumbar cistern drainage puncture needle capable of establishing a subcutaneous tunnel, in particular to a lumbar cistern drainage puncture needle capable of establishing a subcutaneous tunnel.

Background technique

Lumbar cistern drainage is a method in which one end is inserted into the lumbar cistern through a thin drainage tube, and the other end continuously drains the cerebrospinal fluid to the outside of the body. It can relieve the symptoms of hydrocephalus, and has the characteristics of less trauma and fewer side effects. However, because the drainage tube is relatively thin and the drainage path is long, it is very easy to cause infection of the drainage tube from the puncture port, and even cause the infection to retrograde into the brain, resulting in central intracranial infection, which will cause very serious consequences.

SUMMARY OF THE INVENTION

In order to overcome the shortcomings of the above technical problems, the utility model provides a lumbar cistern drainage puncture needle capable of establishing a subcutaneous tunnel.

The lumbar cistern drainage puncture needle capable of establishing a subcutaneous tunnel of the utility model comprises a lumbar cistern drainage tube and a puncture needle. The two ends of the lumbar cistern drainage tube are respectively the inner end inserted into the patient's lumbar cistern and the outer end inserted into the drainage bag. The inside of the lumbar cistern drainage tube is a drainage cavity for drawing out cerebrospinal fluid and/or hydrocephalus; it is characterized in that: one end of the puncture needle is a puncture tip, and the other end is fixed with a connecting rod, and the connecting rod is used for inserting into the lumbar cistern for drainage In the drainage cavity at the outer end of the tube, the outer diameter of the connecting rod is larger than the inner diameter of the lumbar cistern drainage tube; the puncture needle at one end of the connecting rod is fixed with a film cover for wrapping the connection between the connecting rod and the lumbar cistern drainage tube .

The lumbar cistern drainage puncture needle of the utility model can establish a subcutaneous tunnel, the outer diameter of the puncture needle is larger than the outer diameter of the lumbar cistern drainage tube, the connecting rod and the puncture needle are coaxially arranged, and the film outer cover is made of plastic material.

In the lumbar cistern drainage puncture needle of the utility model capable of establishing a subcutaneous tunnel, the outer diameter of the lumbar cistern drainage tube is 1.6 mm, the inner diameter is 0.76 mm, and the diameter of the connecting rod is 0.8 mm.

The lumbar cistern drainage puncture needle of the utility model can establish a subcutaneous tunnel. The puncture needle and the connecting rod are solid, the diameter of the puncture needle is 2.4mm, the length of the puncture needle is 100mm, and the length of the connecting rod is 10mm.

In the lumbar cistern drainage puncture needle capable of establishing a subcutaneous tunnel of the utility model, the lumbar cistern drainage tube is provided with a plurality of drainage holes communicating with the drainage cavity at a position close to the inner end.

The lumbar cistern drainage puncture needle capable of establishing a subcutaneous tunnel of the utility model comprises a sealing bag for sealing and preserving the lumbar cistern drainage tube and the puncture needle.

The beneficial effects of the present utility model are: the lumbar cistern drainage puncture needle of the present utility model is provided with a puncture tip at one end of the puncture needle, and a connecting rod with a diameter larger than the inner diameter of the lumbar cistern drainage tube at the other end, so as to realize the connection between the connecting rod and the lumbar cistern. The interference fit of the drainage cavity of the drainage tube of the large pool can realize the firm connection between the drainage tube of the lumbar pool and the puncture needle after the connecting rod is inserted into the drainage cavity; The covering and wrapping of the connection between the connecting rod and the lumbar drainage tube makes the joint transition smoothly. During the process of inserting the puncture needle into the patient's skin to establish a subcutaneous tunnel, it will neither scrape other tissues nor make the lumbar drainage tube and the puncture needle. Accidentally fell off.

After the subcutaneous tunnel is established, the puncture port of the patient's lumbar spine can be sutured, and the suture site can be covered with gauze, while the puncture port of the lumbar cistern drainage tube is far away from the lumbar puncture port, which effectively avoids drainage along the lumbar cistern. tube to the occurrence of lumbar, spinal and intracranial infections in patients.

Description of drawings

Fig. 1 is the structural representation of the lumbar cistern drainage puncture needle of the present invention;

Fig. 2 is the structural representation after the puncture needle is connected with the lumbar cistern drainage tube;

Fig. 3 is the enlarged cross-sectional view of A area in Fig. 2;

Fig. 4, Fig. 5 are the principle schematic diagrams of utilizing the lumbar cistern drainage puncture needle of the present invention to puncture and establish a subcutaneous tunnel;

FIG. 6 is a schematic diagram of packaging of the lumbar cistern drainage puncture needle of the present invention.

In the picture: 1 lumbar drainage tube, 2 puncture needle, 3 inner end, 4 outer end, 5 drainage cavity, 6 puncture tip, 7 connecting rod, 8 film cover, 9 drainage hole, 10 protective cavity, 11 patient's back, 12 puncture ports, 13 distal piercing ports, 14 wound sutures, 15 gauze dressings, 16 packaging bags, and 17 subcutaneous tunnels.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in Figure 1, a schematic diagram of the structure of the lumbar cistern drainage puncture needle of the present invention is given; An enlarged cross-sectional view of the area, the lumbar drainage puncture needle that can establish a subcutaneous tunnel is composed of a lumbar cistern drainage tube 1 and a puncture needle 2. The two ends of the lumbar cistern drainage tube 1 are the pointed inner end 3 and the insertion into the drainage tube. The outer end 4 and the pointed inner end 3 of the bag are used to insert into the lumbar cistern of the patient, the interior of the lumbar cistern drainage tube 1 is a drainage cavity 5, and the inner end 3 of the lumbar cistern drainage tube 1 is inserted into the lumbar cistern of the patient. After that, the patient's cerebrospinal fluid and/or hydrocephalus can be drained. In order to increase the drainage effect, a plurality of drainage holes 9 communicated with the drainage cavity 5 are opened on the drainage tube 1 of the lumbar cistern near the inner end 3 .

One end of the shown puncture needle 2 is a puncture tip 6, and the other end is fixed with a connecting rod 7. Guided by the puncture tip 6, it is convenient for the puncture needle 2 to establish a subcutaneous tunnel 17 under the patient's skin. The diameter of the connecting rod 7 shown is larger than the inner diameter of the lumbar cistern drainage tube 1, so that when the connecting rod 7 is inserted into the drainage cavity 5 of the lumbar cistern drainage tube 1 at the outer end 4, the connecting rod 7 and the drainage cavity 5 are used. The lumbar cistern drainage tube 1 and the puncture needle 2 can be firmly connected, so that when the puncture needle 2 pulls the lumbar cistern drainage tube 1 through the subcutaneous tunnel 17, the lumbar cistern drainage tube 1 and the puncture needle 2 does not fall off.

A film cover 8 is provided on the periphery of the connection between the connecting rod 7 and the puncture needle 2 as shown, and the film cover 8 is used to wrap the connection part of the puncture needle 2 and the connecting rod 7, so that the connection between the puncture needle 2 and the connecting rod 7 is: In this way, in the process of pulling the lumbar cistern drainage tube 1 through the subcutaneous tunnel 17 by the puncture needle 2, the connection between the puncture needle 2 and the connecting rod 7 is not easy to scrape the skin and flesh tissue around the subcutaneous tunnel 17, which further ensures The lumbar drainage tube 1 and the puncture needle 2 do not fall off. The film cover 8 can be made of plastic film.

The lumbar cistern drainage tube 1 is of a general size, with an outer diameter of 1.6 mm and an inner diameter (ie, the diameter of the drainage cavity 5 ) of 0.76 mm. Both the puncture needle 2 and the connecting rod 7 are solid, and the length of the puncture needle 2 is 100 mm, so that a subcutaneous tunnel 17 of 5-6 cm can be established. The connecting rod 7 is coaxial with the puncture needle 2 , the length of the connecting rod 7 is 10 mm, and the diameter of the connecting rod 7 is 0.8 mm, so that the interference fit between the connecting rod 7 and the drainage tube 5 can be realized.

As shown in Figure 4 and Figure 5, both are schematic diagrams of the principle of using the lumbar cistern drainage puncture needle of the present invention to puncture and establish a subcutaneous tunnel. During the puncture process, the lumbar cistern is first drained through the puncture port 12 of the lumbar cistern puncture site. Insert the inner end 3 of the tube 1 into the lumbar cistern of the patient; then connect the lumbar cistern drainage tube 1 with the puncture needle 2, and then insert the puncture needle 2 into the subcutaneous tissue of the patient's back 11 through the puncture port 12 , establish a subcutaneous tunnel 17, the length of the subcutaneous tunnel 17 is usually between 5-6 cm, and pass the puncture needle 2 through the distal piercing port 13 away from the puncture port 12, and then take the lumbar drainage tube 1 through the subcutaneous tunnel 17 Afterwards, it is pierced through the distal piercing port 13 . Then, the puncture opening 12 is sutured and sterilized with wound sutures 14 , and can be bandaged with bandaging gauze 15 . In this way, since the piercing outlet (distal piercing outlet 13 ) of the lumbar drainage tube 1 is far away from the lumbar puncture port 12 , the occurrence of infection of the patient’s lumbar cistern, spine and intracranial along the lumbar drainage tube is effectively avoided.

As shown in FIG. 6 , a schematic diagram of the packaging of the lumbar cistern drainage puncture needle of the present invention is provided, and the lumbar cistern drainage tube 1 and the puncture needle 2 are sealed and packaged with the packaging bag 16 to ensure that the lumbar cistern drainage tube 1 and the puncture needle 2 are sealed and wrapped. Needle 2 is in a sterile environment.

Claims (6)

1. A lumbar cisterna drainage puncture needle capable of establishing a subcutaneous tunnel comprises a lumbar cisterna drainage tube (1) and a puncture needle (2), wherein the two ends of the lumbar cisterna drainage tube are respectively an inner end (3) inserted into a lumbar cisterna of a patient and an outer end (4) inserted into a drainage bag, and a drainage cavity (5) for leading out cerebrospinal fluid and/or hydrocephalus is arranged inside the lumbar cisterna drainage tube; the method is characterized in that: one end of the puncture needle is a puncture tip (6), the other end of the puncture needle is fixed with a connecting rod (7), the connecting rod is used for being inserted into a drainage cavity at the outer end of the lumbar cisterna drainage tube, and the outer diameter of the connecting rod is larger than the inner diameter of the lumbar cisterna drainage tube; a thin film outer cover (8) for wrapping the joint of the connecting rod and the lumbar cisterna magna drainage tube is fixed on the puncture needle at one end of the connecting rod.

2. The lumbar cisterna magna drainage puncture needle capable of establishing a subcutaneous tunnel according to claim 1, characterized in that: the outer diameter of the puncture needle (2) is larger than that of the lumbar cisterna drainage tube (1), the connecting rod (7) and the puncture needle are coaxially arranged, and the film outer cover (8) is made of plastic materials.

3. The lumbar cisterna magna drainage puncture needle capable of establishing a subcutaneous tunnel according to claim 1 or 2, characterized in that: the external diameter of the lumbar cisterna magna drainage tube (1) is 1.6mm, and the internal diameter is 0.76 mm; the diameter of the connecting rod (7) is 0.8 mm.

4. The lumbar cisterna magna drainage puncture needle capable of establishing a subcutaneous tunnel according to claim 3, characterized in that: the puncture needle (2) and the connecting rod (7) are both solid, the diameter of the puncture needle is 2.4mm, the length of the puncture needle is 100mm, and the length of the connecting rod is 10 mm.

5. The lumbar cisterna magna drainage puncture needle capable of establishing a subcutaneous tunnel according to claim 3, characterized in that: a plurality of drainage holes (9) communicated with the drainage cavity (5) are arranged on the lumbar cisterna drainage tube (1) near the inner end (3).

6. The lumbar cisterna magna drainage puncture needle capable of establishing a subcutaneous tunnel according to claim 3, characterized in that: comprises a packaging bag (16) for sealing and storing the lumbar cisterna drainage tube (1) and the puncture needle (2).

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