Disposable pen type annular skin biopsy sampling device

Abstract

The utility model relates to the technical field of skin biopsy, in particular to a disposable pen type annular skin biopsy sampling device. The top of the pen-shaped main body is provided with a pressing groove, the top of the pen-shaped main body is slidably connected with a pressing rod, the pressing groove is internally slidably connected with a connecting rod, the top of the connecting rod is fixedly connected with the bottom of the pressing rod, the bottom of the connecting rod is provided with a long rod, the side wall of the long rod is sleeved with a spring, and the top of the spring is fixedly connected with the bottom of the connecting rod; by means of the pen-shaped body, the pen point and the drill bit, when the use length needs to be adjusted in a telescopic mode, the long rod can be pressed downwards by pressing the pressing rod, the drill bit is pressed downwards through the installation groove after long pressing, the length of the drill bit is adjusted, and material taking is conducted; the elasticity of the spring can facilitate resetting of the pressing rod and the long rod, so that different sampling ranges are realized, and a user can select proper length and width for sampling according to needs.

Description

Technical Field

[0001] The utility model relates to the technical field of skin biopsy, in particular to a disposable pen-type skin biopsy ring-shaped specimen collector. Background Art

[0002] Skin disease is a general term for diseases that occur on the skin and skin appendages. The skin is the largest organ in the human body. There are many types of skin diseases, and diseases of various internal organs can also manifest on the skin. There are many causes of skin diseases, and skin lesion examination and sampling is one of the routine tasks of dermatology.

[0003] Different skin lesions, such as squamous cell carcinoma, psoriasis, papular urticaria, etc., may require different sizes of sampling areas. For smaller lesions, using a sampler that is too large may result in too much normal tissue being sampled, increasing the patient's pain and recovery time. For larger lesions, using a sampler that is too small may not be able to obtain enough lesion tissue for pathological diagnosis.

[0004] For example, the Chinese patent number CN216962511U discloses a skin punch for pathological biopsy, which relates to the technical field of medical devices. The utility model includes a handle, a blade fixing shell and an annular blade. The lower end of the handle is fixed with a blade fixing shell, the lower end of the blade fixing shell is fixed with an annular blade, the interior of the handle is provided with a push rod assembly, and the interior of the blade fixing shell is provided with a cutting assembly. The utility model uses the structural coordination design of the cutting assembly and the push rod assembly so that the device can directly remove the assembly at the cutting end after cutting the skin assembly, without the need to use tweezers and scissors later, thus reducing the cutting process of the skin tissue and the pain of the patient. The protective cap is connected with the blade fixing shell to effectively ensure that the annular blade is protected by the protective cap before use, so as to avoid the annular blade being bumped before use, which makes the device unusable and then discarded.

[0005] The above scheme cannot adjust the sampling size. If the sampling is too large, too much normal tissue may be sampled, increasing the patient's pain and recovery time. For larger lesions, if the sampling is small, it may not be possible to obtain enough lesion tissue for pathological diagnosis. In view of this, we propose a disposable pen-type skin biopsy ring sampler. Utility Model Content

[0006] The purpose of the utility model is to provide a disposable pen-type skin biopsy ring sampler to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides a disposable pen-type skin biopsy ring sampler, including a pen-shaped body, a pressing groove is opened on the top of the pen-shaped body, a pressing rod is slidably connected to the top of the pen-shaped body, a connecting rod is slidably connected in the pressing groove, the top of the connecting rod is fixedly connected to the bottom of the pressing rod, a long rod is installed at the bottom of the connecting rod, a spring is sleeved on the side wall of the long rod, the top of the spring is fixedly connected to the bottom of the connecting rod, a fixing rod is installed in the pressing groove, the top of the fixing rod is fixedly connected to the bottom of the spring, an installation groove is opened on the top of the fixing rod, a pen tip is installed at the bottom of the pen-shaped body, and a drill bit is installed in the pen tip.

[0008] As a further improvement of the technical solution, a pressing block is installed on the top of the pressing rod.

[0009] As a further improvement of the technical solution, a rubber anti-slip layer is fixedly connected to the side wall of the pen-shaped body.

[0010] As a further improvement of the technical solution, a first thread groove is formed at the bottom of the long rod, and a second thread groove is formed at the side wall of the drill bit, and the second thread groove is threadedly connected to the first thread groove.

[0011] As a further improvement of the technical solution, a rubber anti-slip pad is fixedly connected to the side wall of the pressing block.

[0012] As a further improvement of the technical solution, the pen-shaped body, the pressing rod and the long rod are all made of medical PP plastic material.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the disposable pen-type skin biopsy ring sampler, the pen-shaped body, pen tip and drill bit are arranged. When the use length needs to be telescopically adjusted, the pressing rod can be pressed down to press the long rod, and the drill bit can be pressed down through the installation groove to adjust the length of the drill bit and sample. The elasticity of the spring can facilitate the resetting of the pressing rod and the long rod, thereby realizing different sampling ranges. The user can select the appropriate length and width for sampling as needed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a cross-sectional schematic diagram of the pen-shaped main structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the fixing rod structure of the utility model.

[0018] The meaning of each number in the figure is:

[0019] 1. Pen-shaped body; 2. Pressing groove; 3. Pressing rod; 4. Connecting rod; 5. Long rod; 6. Spring; 7. Fixing rod; 8. Mounting groove; 9. Pen tip; 10. Drill bit; 11. Pressing block; 12. Rubber anti-skid layer; 13. Second threaded groove; 14. Rubber anti-skid pad. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] See also Figure 1-Figure 3 As shown, the utility model provides a disposable pen-type skin biopsy ring sampler, including a pen-shaped body 1, a pressing groove 2 is opened on the top of the pen-shaped body 1, a pressing rod 3 is slidably connected to the top of the pen-shaped body 1, a connecting rod 4 is slidably connected in the pressing groove 2, the top of the connecting rod 4 is fixedly connected to the bottom of the pressing rod 3, a long rod 5 is installed at the bottom of the connecting rod 4, a spring 6 is sleeved on the side wall of the long rod 5, the top of the spring 6 is fixedly connected to the bottom of the connecting rod 4, a fixing rod 7 is installed in the pressing groove 2, the top of the fixing rod 7 is fixedly connected to the bottom of the spring 6, a mounting groove 8 is opened on the top of the fixing rod 7, a pen tip 9 is installed at the bottom of the pen-shaped body 1, and a drill bit 10 is installed in the pen tip 9.

[0022] In this embodiment, through the provision of the pen-shaped body 1, the pen tip 9 and the drill bit 10, when the use length needs to be telescopically adjusted, the pressing rod 3 can be pressed to press the long rod 5 downward, and the drill bit 10 can be pressed down through the installation groove 8 to adjust the length of the drill bit 10 and to collect materials. The elasticity of the spring 6 can facilitate the resetting of the pressing rod 3 and the long rod 5, thereby realizing different material collection ranges. The user can choose the appropriate length and width for collecting materials as needed.

[0023] In order to facilitate pressing the pressing rod 3 downward, a pressing block 11 is installed on the top of the pressing rod 3, and the pressing block 11 can facilitate pressing the pressing rod 3 downward.

[0024] In order to prevent the pen-shaped body 1 from slipping when being used for biopsy sampling, a rubber anti-skid layer 12 is fixedly connected to the side wall of the pen-shaped body 1. The rubber anti-skid layer 12 can prevent the pen-shaped body 1 from slipping when being used for biopsy sampling.

[0025] In addition, in order to facilitate the disassembly and resizing of the drill bit 10, a first thread groove is provided at the bottom of the long rod 5, and a second thread groove 13 is provided on the side wall of the drill bit 10. The second thread groove 13 is threadedly connected to the first thread groove. When the drill bit 10 needs to be disassembled and resized, the second thread groove 13 can be threadedly connected to the first thread groove to disassemble the drill bit 10 and replace it to adjust its size.

[0026] In addition, in order to prevent slipping when pressing the pressing rod 3 , a rubber anti-skid pad 14 is fixedly connected to the side wall of the pressing block 11 , and the rubber anti-skid pad 14 can prevent slipping when pressing the pressing rod 3 .

[0027] In addition, in order to improve the hygiene and safety of use, the pen-shaped body 1, the pressing rod 3 and the long rod 5 are all made of medical PP plastic material.

[0028] When the disposable pen-type skin biopsy ring sampler of this embodiment is used in practice, when it is necessary to adjust the use length by telescopic adjustment, the pressing block 11 can facilitate pressing the pressing rod 3, pressing the pressing rod 3 to press the long rod 5, and then pressing the drill bit 10 downward through the mounting groove 8 to adjust the length of the drill bit 10 and sample. The elasticity of the spring 6 can facilitate the resetting of the pressing rod 3 and the long rod 5. The rubber anti-skid layer 12 can prevent slipping when using the pen-shaped body 1 for biopsy sampling. When it is necessary to disassemble and adjust the size of the drill bit 10, the second thread groove 13 can be threadedly connected to the first thread groove, and the drill bit 10 can be disassembled and replaced to adjust the size. The pen-shaped body 1, the pressing rod 3 and the long rod 5 are all made of medical PP plastic material, which improves the hygiene and safety of use. The rubber anti-skid pad 14 can prevent slipping when pressing the pressing rod 3, thereby achieving different sampling ranges. The user can choose the appropriate length and width for sampling as needed.

Claims

1. A disposable pen-type skin biopsy ring sampler, characterized by: The invention comprises a pen-shaped body (1), the top of the pen-shaped body (1) is provided with a pressing groove (2), the top of the pen-shaped body (1) is slidably connected with a pressing rod (3), the inside of the pressing groove (2) is slidably connected with a connecting rod (4), the top of the connecting rod (4) is fixedly connected with the bottom of the pressing rod (3), the bottom of the connecting rod (4) is provided with a long rod (5), the side wall of the long rod (5) is sleeved with a spring (6), the top of the spring (6) is fixedly connected with the bottom of the connecting rod (4), a fixing rod (7) is installed in the pressing groove (2), the top of the fixing rod (7) is fixedly connected with the bottom of the spring (6), the top of the fixing rod (7) is provided with a mounting groove (8), the bottom of the pen-shaped body (1) is provided with a pen tip (9), and a drill bit (10) is installed in the pen tip (9); A first thread groove is formed at the bottom of the long rod (5), a second thread groove (13) is formed on the side wall of the drill bit (10), and the second thread groove (13) is threadably connected to the first thread groove.

2. The disposable pen-type skin biopsy ring sampler according to claim 1, characterized in that: A pressing block (11) is installed on the top of the pressing rod (3).

3. The disposable pen-type skin biopsy ring sampler according to claim 1, characterized in that: The side wall of the pen-shaped main body (1) is fixedly connected with a rubber anti-slip layer (12).

4. The disposable pen-type skin biopsy ring sampler according to claim 2, characterized in that: A rubber anti-slip pad (14) is fixedly connected to the side wall of the pressing block (11).

5. The disposable pen-type skin biopsy ring sampler according to claim 1, characterized in that: The pen-shaped body (1), the pressing rod (3) and the long rod (5) are all made of medical PP plastic material.

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