Continuous paravertebral nerve block puncture needle

Abstract

The utility model relates to a continuous paravertebral nerve block puncture needle, which aims at solving the technical problems that the current continuous paravertebral nerve block puncture needle can only puncture at one time, cannot be placed in a catheter and is not clear in medicine injection direction, and a catheter is inconvenient to seal and fix in the use process. A pipe inserting head is integrally formed on the installation head in a communicating mode, the angle between the pipe inserting head and the installation head is 90 degrees, a plurality of sealing sleeves are connected to the inner wall of the pipe inserting head in a sealed mode, soft sealing rings are connected to inner rings of the sealing sleeves in a sealed mode, a cover cap is installed in the pipe inserting head, and the pipe inserting head is connected with the cover cap in a sealed mode. According to the utility model, the intubation head and the mounting head are mounted at an angle of 90 degrees, so that one-time puncture can be realized, a B-ultrasonic lower catheter can be effectively arranged, continuous paravertebral nerve block can be developed, and the trend of injection medicine can be judged.

Description

Technical Field

[0001] The utility model relates to the field of puncture needles, in particular to a continuous paravertebral nerve blocking puncture needle. Background Art

[0002] Selective paravertebral nerve block technology blocks the dorsal root ganglia of the spinal cord, quickly controls inflammatory reactions and edema, and blocks the nerve conduction pathway of pain. It is suitable for the control of acute pain, the treatment of chronic pain, the treatment of postherpetic neuralgia, the treatment of cancer pain, postoperative analgesia, and combined anesthesia. It can play a huge role in clinical practice, providing multiple options for the treatment of different diseases. It is an important clinical treatment method. With the development of science and technology and medicine, puncture block is guided by musculoskeletal ultrasound, which is radiation-free, improves accuracy, improves patient comfort, and ensures the safety of treatment.

[0003] According to the published patent 202120490810.5, a paravertebral nerve blocking needle with a positioning function includes a shell, a control button is provided on the outer wall of the shell, a puncture needle is connected to the top of the shell, a scale line 1 is provided on the outer wall of the puncture needle, an injection needle is provided inside the shell and passes through the puncture needle, a guide rod and a screw are vertically connected between the two groups of support plates, a nut connecting block is connected between the guide rod and the screw, a motor is installed on one side of the top of the lower support plate, a jacket is provided at one end of the nut connecting block, the injection needle passes through the jacket, and a scale line 1 is provided on the outer wall of the injection needle There is a second scale line. In the process of realizing the utility model, the inventor found that at least the following problems in the prior art have not been solved. The puncture needle and the injection needle can be accurately positioned through the scale line one and the scale line two, and the injection needle uses a motor, a screw, a guide rod and a jacket to solve the problem of strong pain caused by the movement of the injection needle. During use, the traditional continuous paravertebral nerve block puncture needle can only be used for one-time puncture, and the catheter cannot be placed and the drug injection direction is unclear, and it is inconvenient to seal and fix the catheter. For this reason, a new technical solution needs to be designed to solve it. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, meet actual needs, and provide a continuous paravertebral nerve block puncture needle to solve the technical problems that the current continuous paravertebral nerve block puncture needle can only puncture once during use, cannot place a catheter, the direction of drug injection is unclear, and it is inconvenient to seal and fix the catheter.

[0005] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: to design a continuous paravertebral nerve block puncture needle, including a mounting head, a cannula head is connected and integrally formed on the mounting head, the cannula head is 90 degrees to the mounting head, the inner wall of the cannula head is sealed with multiple sealing sleeves, the inner rings of the multiple sealing sleeves are all sealed with soft sealing rings, and a cap is installed inside the cannula head.

[0006] Preferably, two small wings are fixedly connected to the outer surface of the mounting head.

[0007] Preferably, one end of the mounting head is fixedly connected to a needle, and the other end of the mounting head is threadedly connected to a sealing cover.

[0008] Preferably, the cannula head is sealingly connected to the catheter body via a sealing sleeve and a soft sealing ring.

[0009] Preferably, one side of the cover cap and the outside of the cannula head is connected with an anti-lost line through a hanging ring.

[0010] Preferably, one end of the two hanging rings is fixedly connected to the outer surface of the cover cap and the insertion head respectively, and the two ends of the anti-lost line are fixedly connected to the two hanging rings.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model can be used for single puncture by installing the cannula head and the mounting head at 90 degrees, and can also effectively place the catheter under B-ultrasound to develop continuous paravertebral nerve block and determine the direction of the injected drug;

[0013] When the catheter body is installed inside the cannula head, the soft sealing ring on the sealing sleeve will wrap around the outside of the catheter body, thereby sealing and fixing the catheter head, improving the convenience of installing the catheter body on the continuous paravertebral nerve block puncture needle;

[0014] When the catheter body is pulled out from the cannula head, one end of the cap is inserted into the cannula head to seal the cannula head, thereby preventing dust from entering the installation head and the cannula head during the placement of the continuous paravertebral nerve block puncture needle and causing internal contamination;

[0015] When the mounting head needs to be cleaned, the sealing cover can be directly unscrewed from one end of the mounting head, and then the inside of the mounting head can be rinsed with cleaning fluid, which improves the convenience of cleaning the mounting head and avoids the phenomenon that some parts of the mounting head cannot be cleaned during the cleaning process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is the installation diagram of the catheter body of the utility model;

[0018] Figure 3 It is a cross-sectional view of the cannula head of the utility model;

[0019] Figure 4 It is a top view of the sealing sleeve of the utility model;

[0020] In the figure: 1, mounting head; 11, cannula head; 12, sealing sleeve; 13, soft sealing ring; 14, cap; 15, small wings; 16, needle; 17, sealing cover;

[0021] 2. Hanging ring; 21. Anti-lost line;

[0022] 3. Catheter body. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0024] Example 1: A continuous paravertebral nerve block puncture needle, see Figures 1 to 4 The mounting head 1 comprises a mounting head 1, on which a cannula head 11 is integrally formed, the cannula head 11 is 90 degrees to the mounting head 1, the inner wall of the cannula head 11 is sealed with a plurality of sealing sleeves 12, the inner rings of the plurality of sealing sleeves 12 are all sealed with a soft sealing ring 13, a cap 14 is installed inside the cannula head 11, by installing the cannula head 11 at a 90-degree angle to the mounting head 1, a single puncture can be performed, and a catheter can be effectively placed under B-ultrasound to develop continuous paravertebral nerve block, and the direction of the injected drug can be determined.

[0025] For details, see Figure 1 Two small wings 15 are fixedly connected to the outer surface of the installation head 1. By adding two small wings 15 to the installation head 1, it is convenient for medical staff to connect the needle.

[0026] For further information, see Figure 1 One end of the mounting head 1 is fixedly connected with a needle 16, and the other end of the mounting head 1 is threadedly connected with a sealing cover 17. When the mounting head 1 needs to be cleaned, the sealing cover 17 can be directly unscrewed from one end of the mounting head 1, and then the inside of the mounting head 1 can be rinsed with a cleaning liquid, which improves the convenience of cleaning the mounting head 1 and avoids the phenomenon that some positions cannot be cleaned during the cleaning process of the mounting head 1.

[0027] It is worth noting that see Figure 3 and Figure 4The cannula head 11 is sealed and connected to the catheter body 3 through a sealing sleeve 12 and a soft sealing ring 13. When the catheter body 3 is installed inside the cannula head 11, the soft sealing ring 13 on the sealing sleeve 12 will be wrapped around the outside of the catheter body 3, thereby sealing and fixing the catheter head, thereby improving the convenience of installing the catheter body 3 on the continuous paravertebral nerve block puncture needle.

[0028] It is worth noting that see Figure 1 and Figure 2 One side of the outside of the cap 14 and the cannula head 11 is connected with an anti-lost line 21 through a hanging ring 2, one end of the two hanging rings 2 is fixedly connected to the outer surface of the cap 14 and the cannula head 11 respectively, and the two ends of the anti-lost line 21 are fixedly connected to the two hanging rings 2. When the catheter body 3 is pulled out from the cannula head 11, one end of the cap 14 is inserted into the cannula head 11, so as to seal the cannula head 11 and avoid dust entering the installation head 1 and the cannula head 11 during the placement of the continuous paravertebral nerve block puncture needle, causing the interior to be contaminated.

[0029] In addition, the components designed in the present invention are all universal standard parts or components known to technical personnel in the field. Their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods. They can be fully implemented by technical personnel in the field, and there is no need to elaborate. The content protected by the present invention does not involve improvements to internal structures and methods.

[0030] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A continuous paravertebral nerve block puncture needle, comprising a mounting head (1), characterized in that: The installation head (1) is integrally formed with a cannula head (11), the cannula head (11) and the installation head (1) are at 90 degrees, the inner wall of the cannula head (11) is sealed with a plurality of sealing sleeves (12), the inner rings of the plurality of sealing sleeves (12) are all sealed with soft sealing rings (13), and a cap (14) is installed inside the cannula head (11).

2. A continuous paravertebral nerve block puncture needle as claimed in claim 1, characterized in that: Two small wings (15) are fixedly connected to the outer surface of the mounting head (1).

3. A continuous paravertebral nerve block puncture needle as claimed in claim 1, characterized in that: One end of the mounting head (1) is fixedly connected to a needle head (16), and the other end of the mounting head (1) is threadedly connected to a sealing cover (17).

4. A continuous paravertebral nerve block puncture needle as claimed in claim 1, characterized in that: The cannula head (11) is sealedly connected to the catheter body (3) via a sealing sleeve (12) and a soft sealing ring (13).

5. A continuous paravertebral nerve block puncture needle as claimed in claim 1, characterized in that: One side of the outside of the cover cap (14) and the cannula head (11) is connected to an anti-lost line (21) via a hanging ring (2).

6. A continuous paravertebral nerve block puncture needle as claimed in claim 5, characterized in that: One end of the two hanging rings (2) is fixedly connected to the outer surface of the cover cap (14) and the insertion head (11), respectively, and the two ends of the anti-lost line (21) are fixedly connected to the two hanging rings (2).

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