Skin biopsy sampling tool

Abstract

The utility model discloses a skin biopsy sampling tool, which relates to the technical field of medical treatment, and comprises a tool main body, two cutting plates fixedly connected to the lower end of the main body and symmetrically arranged, and sampling tweezers, the lower end of the main body is provided with a mounting groove, the upper end of the sampling tweezers is mounted in the mounting groove, and the lower end of the sampling tweezers extends out of the lower end of the main body. The extending end of the sampling tweezers and the two cutting plates are combined into an annular structure, a limiting column used for limiting the sampling tweezers is fixedly installed in the installation groove, the annular structure formed by the sampling tweezers and the cutting plates is rotatably inserted into the skin sampling position, the two sides of the sampling tweezers are pressed, the sampling tweezers clamp a skin sample, and then sampling tissue can be pulled out from the skin surface. According to the skin biopsy sampling tool, the combination of the punching sampler and the tweezers is completed, and the problems that when an existing skin biopsy sampling tool is used for sampling, the punching sampler and the tweezers need to be alternately used, the operation time is prolonged, and meanwhile the operation complexity is increased are solved.

Description

Technical Field

[0001] This utility model relates to the field of medical technology, specifically a skin biopsy sampling tool. Background Technology

[0002] Skin biopsy is a common clinical examination procedure used to obtain skin tissue samples for pathological examination. During the procedure, the doctor will disinfect the sampling site to minimize the risk of infection. If necessary, local anesthetic may be used to ensure the patient's comfort. The doctor will use specialized tools, such as a sampler, biopsy forceps, or scraper, to remove a small tissue sample from the skin surface. The depth and area of ​​the sample taken depend on the condition and the requirements of the examination. After sampling, the doctor will disinfect the sampling site to prevent infection and, if necessary, use hemostatic agents or apply pressure to stop the bleeding. The obtained skin tissue sample is placed in a special container and sent to a laboratory for pathological examination, which determines the type of lesion, its cause, and other relevant information.

[0003] The skin perforator is a medical device specifically designed for skin biopsies, also known as a skin bio-cutter. Refer to patent publication number CN114098839B for a dermatological sampler. It typically consists of a circular blade with a small hole and a handle. In use, the blade is aligned with the sampling site, and the handle is gently pressed to allow the blade to cut into the skin surface. By rotating the handle or pushing the sampler, the blade cuts a small annular hole in the skin surface. The skin tissue is then pulled out through the hole using tweezers, and a scalpel is used to cut the skin tissue to obtain a skin tissue sample.

[0004] However, existing skin biopsy sampling tools require the alternating use of a punch and forceps, increasing both operation time and complexity, and making them prone to errors (such as sample loss, damage to surrounding tissue, poor sample quality, and increased risk of infection). To address these issues, a new skin biopsy sampling tool is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a skin biopsy sampling tool to solve the problem mentioned in the background art that existing skin biopsy sampling tools require the alternating use of a punch sampler and tweezers during sampling, which increases the operation time and complexity.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a skin biopsy sampling tool, comprising a main body of the tool, with two cutting plates fixedly connected to the lower end of the main body, and the two cutting plates being symmetrically arranged;

[0007] The sampling tweezers have a mounting groove at the lower end of the main body, the upper end of the sampling tweezers is installed in the mounting groove, and the lower end of the sampling tweezers extends out from the lower end of the main body. The extended end of the sampling tweezers is combined with two cutting plates to form a ring structure.

[0008] The ring structure consisting of sampling forceps and a cutting plate is inserted into the skin sampling site by rotation. Pressing the two sides of the sampling forceps causes the sampling forceps to hold the skin sample.

[0009] As a preferred embodiment of this utility model, a limiting post for limiting sampling tweezers is fixedly installed in the mounting groove.

[0010] As a preferred technical solution of this utility model, a spring bar for increasing the elasticity of the sampling tweezers is installed on the inner side of the sampling tweezers.

[0011] As a preferred technical solution of this utility model, the main body has sliding holes on both sides that communicate with the mounting groove, and a pressing key for squeezing the side of the sampling tweezers is slidably inserted into the sliding holes.

[0012] As a preferred technical solution of this utility model, a limiting block for limiting the pressing key is fixedly connected to the inner side wall of the sliding hole of the main body, and a sliding groove matching the limiting block is opened on the side wall of the pressing key.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention utilizes a ring structure composed of sampling forceps and a cutting plate, which is rotated and inserted into the skin sampling site. By pressing the two sides of the sampling forceps, the skin sample is gripped and pulled out from the skin surface. This combines a punch sampler and forceps, solving the problem that existing skin biopsy sampling tools require alternating use of a punch sampler and forceps, which increases operation time and complexity. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the sampling tool according to an embodiment of the present utility model;

[0016] Figure 2 This is a cross-sectional view of the main body of an embodiment of the present utility model;

[0017] Figure 3 This is an embodiment of the present utility model. Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is an embodiment of the present utility model;

[0019] Figure 5 This is an embodiment of the present utility model.

[0020] In the diagram: 1. Main body; 11. Limiting post; 12. Limiting block; 2. Cutting plate; 3. Sampling tweezers; 31. Spring bar; 4. Press button. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5 This embodiment provides a skin biopsy sampling tool, including a main body 1 and a soft tissue sample puncture and collection punch (reference model BP-80F). Two cutting plates 2 are mounted on the lower end of the main body 1. Figure 1 As shown, the cutting plate 2 is set as an arc-shaped plate, and the two cutting plates 2 are arranged symmetrically. Figure 3 As shown, a mounting groove is provided at the lower end of the main body 1, and a sampling tweezers 3 is installed in the mounting groove. The lower end of the sampling tweezers 3 extends out from the bottom of the main body 1.

[0023] Both the sampling forceps 3 and the cutting plate 2 are made of stainless steel. Figure 1 As shown, the sampling forceps 3 extends from below the main body 1 at the gap between the two cutting plates 2, and is spliced ​​with the two cutting plates 2 to form a ring structure. Referring to the soft tissue sample puncture and collection punch of model BP-80F, the ring structure formed by the sampling forceps 3 extending from below the main body 1 and the two cutting plates 2 is the blade head of the ring cutter.

[0024] like Figure 3 As shown, a limiting post 11 is fixedly installed in the mounting groove of the main body 1. The limiting post 11 is located on the top inner side of the sampling tweezers 3. The limiting post 11 limits the sampling tweezers 3 and prevents the sampling tweezers 3 from leaving the mounting groove of the main body 1.

[0025] In use, the sampling forceps 3, extending from the lower part of the main body 1, is combined with the two cutting plates 2 to form a blade. The blade is then aligned with the skin sampling location and inserted into the skin. Alternatively, the main body 1 can be rotated to allow the combined blade to be inserted into the skin tissue. The skin tissue located between the two cutting plates 2 is the selected skin tissue sample. At this point, pressing the sides of the sampling forceps 3 with fingers causes deformation, bringing the lower ends of the forceps 3 closer together, allowing the skin tissue sample to be grasped. As the main body 1 moves, the cutting plates 2 disengage from the incision, pulling out the skin tissue sample. Most of the pulled-out sample will break due to the pulling force, thus completing the sampling. However, some samples may remain connected to the incision through the skin tissue. In this case, a scalpel can be used to cut the sample at the connection point between the sample and the incision, separating the sample from the incision.

[0026] After removing the sample, move the main body 1 above the detection container and release the sampling tweezers 3. The sampling tweezers 3 will return to its original position due to the elasticity of the metal itself, and the skin tissue sample located in the cutting plate 2 will fall into the detection container under its own gravity. To ensure the reset of the sampling tweezers 3, as follows: Figure 3 As shown, the sampling tweezers 3 are equipped with a spring bar 31 inside. The spring bar 31 is designed with a V-shaped structure and is also made of stainless steel. The metal elasticity of the spring bar 31 further drives the sampling tweezers 3 to reset.

[0027] like Figure 3 As shown, to facilitate pressing the sides of the sampling tweezers 3, pressing buttons 4 are slidably inserted into both sides of the main body 1. Each side of the main body 1 has sliding holes, both of which communicate with the mounting groove. The pressing buttons 4 are slidably inserted into these sliding holes. One end of the pressing button 4 is attached to the side of the sampling tweezers 3, and the other end extends from the side of the main body 1. By pressing the extended end of the pressing button 4 with a finger, the pressing button 4 slides towards the mounting groove, thus squeezing the side of the sampling tweezers 3.

[0028] like Figure 5 As shown, a limiting block 12 is fixedly installed in the sliding hole of the main body 1, and a sliding groove is provided on the side of the pressing key 4. When the pressing key 4 is installed in the sliding hole, the limiting block 12 is located in the limiting groove of the pressing key 4. The pressing key 4 can be limited by the limiting block 12 to prevent the pressing key 4 from dislodging from the sliding hole of the main body 1.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A skin biopsy sampling tool, characterized by, Include: The body (1) of the tool, the lower end of the body (1) is fixedly connected with two cutting plates (2), and the two cutting plates (2) are symmetrically arranged; The sampling forceps (3) are provided with a mounting groove in the lower end of the body (1), the upper end of the sampling forceps (3) is mounted in the mounting groove, the lower end of the sampling forceps (3) extends from the lower end of the body (1), and the end of the sampling forceps (3) extending out is combined with the two cutting plates (2) to form an annular structure, and the annular structure is the head of the annular cutter; The annular structure composed of the sampling forceps (3) and the cutting plate (2) is inserted into the skin sampling site in rotation, and the two sides of the sampling forceps (3) are pressed to make the sampling forceps (3) clamp the skin sample.

2. A skin biopsy sampling tool according to claim 1, wherein: The mounting groove is fixedly provided with a limiting column (11) for limiting the sampling forceps (3).

3. A skin biopsy sampling tool according to claim 2, wherein: The inner side of the sampling forceps (3) is provided with a spring strip (31) for increasing the elasticity of the sampling forceps (3).

4. A skin biopsy sampling tool according to claim 3, wherein: The body (1) is provided with sliding holes in the two sides and communicated with the mounting groove, the sliding holes are slidably provided with a pressing key (4) for pressing the side of the sampling forceps (3).

5. A skin biopsy sampling tool according to claim 4, wherein: The inner side wall of the sliding hole of the body (1) is fixedly connected with a limiting block (12) for limiting the pressing key (4), and the side wall of the pressing key (4) is provided with a sliding groove matched with the limiting block (12).

Images