Skin breaking protection injection needle

Abstract

The utility model relates to a broken skin protection syringe needle which comprises a sharp needle tube and a blunt needle, a check block is arranged on the outer side wall of a needle tube of the blunt needle, the sharp needle tube is slidably arranged on the needle tube of the blunt needle in a sleeved mode, when the sharp needle tube abuts against the check block, the front end of the needle tube of the blunt needle is located in the sharp needle tube, and an opening is vertically formed in the side wall of the sharp needle tube. The stopping block can be inserted into the opening by rotating the sharp needle tube, and when the stopping block is inserted into the opening, the front end of the needle tube of the blunt needle protrudes out of the sharp needle tube. According to the puncture protection injection needle, the needle tube of the sharp needle is arranged on the needle tube of the blunt needle in the sliding and sleeving mode, the combination of the sharp needle and the blunt needle in the prior art is replaced, one-time puncturing is achieved, the needle is not replaced in the midway, the blunt needle is arranged at the head, the problems of vascular embolism and the like cannot be caused, operation steps are reduced, and risks are reduced as well.

Description

Technical Field

[0001] This utility model belongs to the field of medical cosmetic surgery technology, and specifically relates to a needle for protecting the skin during injection. Background Technology

[0002] Currently, most injection needles used in cosmetic surgery or dermatology are "disposable blunt-tipped injection needles" (i.e., blunt needles). Commonly used blunt needle packages contain one blunt needle and one sharp needle. The blunt needle has no tip and cannot pierce the skin, while the sharp needle can. The method of use is to first pierce the skin with the sharp needle, then withdraw it and insert the blunt needle to inject the liquid. This injection method is used because directly using a sharp needle could potentially cause the needle to pierce a blood vessel, leading to embolism and other medical accidents. Furthermore, after withdrawing the blunt needle, the bleeding from the puncture site is often unclear and difficult to see. Re-inserting the sharp needle is not only difficult to perform but also more likely to cause secondary damage. Re-inserting the needle mid-treatment is cumbersome and increases the risk of infection. Utility Model Content

[0003] In view of this, the purpose of this utility model is to address the shortcomings of the existing technology by providing a skin-protecting injection needle that can be inserted in one go without needing to be replaced midway, thus reducing the number of operation steps and lowering the risk.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] The skin-piercing protection injection needle includes a sharp needle tube and a blunt needle. A stop is provided on the outer wall of the blunt needle tube. The sharp needle tube can be slidably sleeved on the blunt needle tube. When the sharp needle tube reaches the stop, the front end of the blunt needle tube is inside the sharp needle tube. An opening is vertically opened on the side wall of the sharp needle tube. Rotating the sharp needle tube can cause the stop to be inserted into the opening. When the stop is inserted into the opening, the front end of the blunt needle tube protrudes out of the sharp needle tube.

[0006] To better realize this utility model, the above structure is further optimized, with the opening vertically penetrating both ends of the sharp needle tube.

[0007] To better realize this utility model, the above structure is further optimized, and the stop block is a cylindrical protrusion.

[0008] To better realize this utility model, the above structure is further optimized by setting a stop block in the middle of the needle tube of the blunt needle.

[0009] To better realize this utility model, the above structure is further optimized, and the diameter of the blunt needle tube is 0.51mm.

[0010] To better realize this utility model, the above structure is further optimized, with the opening width being 0.2mm and the stop diameter being 0.2mm.

[0011] To better realize this utility model, the above structure is further optimized, and both the sharp needle tube and the blunt needle tube are made of stainless steel.

[0012] Compared with the prior art, this utility model has the following advantages:

[0013] The skin-protecting injection needle provided by this utility model slides a sharp needle tube onto a blunt needle tube, replacing the combination of a sharp needle and a blunt needle in the prior art. This allows for one-time insertion without changing the needle midway, and the blunt needle head will not cause problems such as vascular embolism. This reduces the number of operation steps and also reduces the risk. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of the puncture-protective injection needle of this utility model when it is inserted through puncture skin;

[0016] Figure 2 yes Figure 1 A magnified schematic diagram of the structure of part A in the diagram;

[0017] Figure 3 This is a schematic diagram of the structure of the new invention's skin-penetration protection injection needle during injection after skin rupture;

[0018] Figure 4 yes Figure 3 A magnified schematic diagram of part B.

[0019] In the picture:

[0020] 1-Sharp needle tube, 101-Opening, 2-Blunt needle, 201-Stop. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] Please refer to Figures 1-4 The present invention provides a puncture-protective injection needle, comprising a sharp needle tube 1 and a blunt needle 2, both made of stainless steel. A stop 201 is provided on the outer wall of the blunt needle 2 tube. The sharp needle tube 1 is slidably fitted onto the blunt needle 2 tube. The stop 201 is a cylindrical protrusion located in the middle of the blunt needle 2 tube. Compared to the combination of a sharp and a blunt needle in the prior art, this application achieves single-insertion without needing to change the needle mid-operation, effectively reducing the risks during surgery.

[0025] like Figure 1 and Figure 2 As shown, when the sharp needle tube 1 reaches the stop block 201, the front end of the blunt needle 2 is inside the sharp needle tube 1. At this time, the entire injection needle is used as a sharp needle in the prior art, and the function of breaking the skin and inserting the needle is achieved through the needle tip at the front end of the sharp needle tube 1.

[0026] To enable operation without changing the needle mid-treatment, an opening 101 is vertically formed on the side wall of the sharp needle tube 1. The opening 101 extends vertically through both ends of the sharp needle tube 1. Rotating the sharp needle tube 1 allows the stop block 201 to be inserted into the opening 101. Figure 3 and Figure 4As shown, when the stop block 201 is inserted into the opening 101, the tip of the blunt needle 2 protrudes beyond the sharp needle tube 1. The sharp needle tube 1 is then retracted, exposing the tip of the blunt needle 2 used for injection. At this point, the tip of the blunt needle 2 can directly enter the target skin layer to push the liquid in. This application reduces the number of operational steps and also lowers the risk. It is more convenient and safer than existing technologies, suitable for all doctors, and eliminates treatment accidents and differences in treatment effects caused by insufficient experience and limited medical skills of doctors.

[0027] In this embodiment, the injection needle is disassembled into two parts: a 25G blunt needle 2 with a tube diameter of 0.51mm, which is comparable to commercially available 25G blunt needles. A stop 201 with a diameter of 0.2mm is provided on the blunt needle 2, while the opening 101 on the sharp needle tube 1 has a width of 0.2mm. The opening 101 and the stop 201 are the same size, allowing them to fit together tightly.

[0028] In use, first place the sharp needle tube 1 against the stop block 201, so that the tip of the blunt needle 2 is inside the sharp needle tube 1. At this time, the entire injection needle is used as a sharp needle in the prior art. The needle tip at the front end of the sharp needle tube 1 is used to pierce the skin and insert the needle. Then rotate the sharp needle tube 1 so that the opening 101 is aligned with the stop block 201 and inserted. At the same time, the sharp needle tube 1 is retracted so that the tip of the blunt needle 2 is exposed. At this time, the tip of the blunt needle 2 can directly enter the target skin layer to push the liquid in and complete the injection, achieving one-time puncture without changing the needle in the middle.

[0029] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A skin-penetrating protective injection needle, characterized in that: The device includes a sharp needle tube (1) and a blunt needle (2). A stop (201) is provided on the outer wall of the blunt needle tube (2). The sharp needle tube (1) is slidably sleeved on the blunt needle tube (2). When the sharp needle tube (1) reaches the stop (201), the front end of the blunt needle tube (2) is inside the sharp needle tube (1). An opening (101) is vertically opened on the side wall of the sharp needle tube (1). Rotating the sharp needle tube (1) allows the stop (201) to be inserted into the opening (101). When the stop (201) is inserted into the opening (101), the front end of the blunt needle tube (2) protrudes from the sharp needle tube (1). The diameter of the blunt needle (2) is 0.51 mm; The opening (101) has a width of 0.2 mm, and the stop (201) has a diameter of 0.2 mm.

2. The skin-protecting injection needle according to claim 1, characterized in that: The opening (101) extends vertically through both ends of the sharp needle tube (1).

3. The skin-protecting injection needle according to claim 2, characterized in that: The stop (201) is a cylindrical protrusion.

4. The skin-protecting injection needle according to claim 3, characterized in that: The stop (201) is located in the middle of the needle tube of the blunt needle (2).

5. The skin-protecting injection needle according to any one of claims 1-4, characterized in that: Both the sharp needle tube (1) and the blunt needle tube (2) are made of stainless steel.

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