Sampling device for dermatological department

Abstract

The utility model discloses a sampling device for dermatological department, which belongs to the technical field of skin sampling and comprises a shell, a mounting cavity is arranged at one end of the shell, a moving groove communicated with the mounting cavity is arranged at the other end of the shell, the length of the mounting cavity is larger than that of the moving groove, and a connecting rod is coaxially arranged in the mounting cavity. A push rod connected with the connecting rod is slidably arranged in the moving groove, a flat plate is arranged at the other end of the push rod, the push rod is conveniently pressed and pushed, two limiting holes are formed in the outer circle face of the shell, and the connecting rod located in the mounting cavity is pushed out of the other end of the shell through pushing of the push rod; when the scalpel is used, the pushed connecting rod is locked and fixed, the scalpel is pushed out of the shell to facilitate sampling at the moment, when the scalpel is not used, the connecting rod is unlocked through the locking assembly, the connecting rod is pushed by the reset assembly to be stored in the shell again, meanwhile, the scalpel at one end of the connecting rod is stored, and accidental injury of the scalpel when the scalpel is not used is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of skin sampling, in particular to a sampling device for dermatology. Background Art

[0002] The skin is covered on the surface of the body and is in direct contact with the external environment. The skin is divided into two layers: the epidermis and the dermis. The epidermis is on the surface of the skin and can be divided into two parts: the stratum corneum and the stratum germinativum. The stratum corneum is composed of keratinized cells, which become dandruff after falling off. People need to go to the hospital for treatment when they have skin diseases. When treating skin diseases, it is often necessary to scrape and sample the patient's diseased skin to facilitate further diagnosis of skin diseases.

[0003] The existing sampling method is to scrape or cut with a scalpel. Each time a dermatologist scrapes skin tissue for a patient, he needs to replace the blade and disinfect it. When the sampling device is not in use, the blade can easily scratch the doctor or the patient, resulting in certain safety hazards.

[0004] Therefore, we propose a dermatological sampling device to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the problem of blade placement in the prior art and proposes a dermatology sampling device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A sampling device for dermatology comprises a shell, one end of which is provided with a mounting cavity, and the other end of which is provided with a movable groove communicated with the mounting cavity, a connecting rod is coaxially provided in the mounting cavity, a push rod connected to the connecting rod is slidably provided in the movable groove, two limiting holes are provided on the outer circumferential surface of the shell, a locking assembly which is adapted to the limiting holes and is used to lock the connecting rod is provided on the connecting rod, one end of the movable groove of the mounting cavity is provided with a reset assembly for resetting the connecting rod, and a scalpel for taking samples is installed at one end of the connecting rod close to the reset assembly, and one end of the connecting rod is threadedly connected to the outside of the scalpel with a compression sleeve for fixing the scalpel.

[0008] Preferably, the locking assembly includes a pressure rod and a push rod, the outer cylindrical surface of the shell is fixedly connected to a fixing block located on one side of the limiting hole, the pressure rod is obliquely fixedly connected to one side of the fixing block, the push rod is obliquely fixedly connected to the outer cylindrical surface of the connecting rod, and the push rod and the pressure rod are both provided with limiting blocks extending into the limiting hole at one end close to the shell, and each of the limiting blocks is adapted to the limiting hole.

[0009] Preferably, the reset assembly includes a spring, the outer cylindrical surface of the connecting rod is fixedly connected to a first fixing plate, the inner wall of the mounting cavity is fixedly connected to a second fixing plate, the connecting rod slides through the second fixing plate, and the spring is fixedly connected between the first fixing plate and the second fixing plate.

[0010] Preferably, one end of the connecting rod for mounting the scalpel is in the shape of a truncated cone, and a mounting groove for inserting the scalpel is provided at the top of the truncated cone, the end of the clamping sleeve away from the connecting rod is adapted to the truncated cone shape of the connecting rod, and one end of the clamping sleeve is provided with a fixing groove for the scalpel to pass through.

[0011] Preferably, a collecting cover is mounted on the outer side of the shell at one end of the shell away from the push rod.

[0012] Preferably, the inner diameter of the installation cavity is larger than the inner diameter of the movable groove, and a baffle abutting against the inner wall of the installation cavity is fixedly connected to one end of the connecting rod facing the push rod.

[0013] To sum up, the technical effects and advantages of the utility model are as follows: through the setting of the connecting rod, the push rod, the scalpel, the reset assembly and the locking assembly, the push rod pushes the connecting rod located in the installation cavity out of the other end of the shell, and the locking assembly on the connecting rod locks and fixes the pushed-out connecting rod. At this time, the scalpel is pushed out of the shell for convenient sampling. When not in use, the connecting rod is unlocked by the locking assembly, and the connecting rod will be retracted into the shell again under the push of the reset assembly, and the scalpel at one end of the connecting rod will be retracted to prevent accidental injury by the scalpel when not in use, reducing the possibility of safety hazards; through the setting of the compression sleeve, the scalpel is installed at one end of the connecting rod, and then the compression sleeve is threadedly installed on the outside of the scalpel, so that the scalpel is convenient to replace, while improving the stability of the scalpel installation, making it easier to sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of a sampling device for dermatology;

[0015] Figure 2 It is a cross-sectional view of the interior of a sampling device for dermatology;

[0016] Figure 3 for Figure 2 A schematic diagram of the structure enlargement in the middle;

[0017] Figure 4 The present invention is a schematic diagram of the installation structure of a scalpel in a dermatology sampling device.

[0018] In the figure: 1. outer shell; 2. push rod; 3. fixed block; 4. pressure rod; 5. limit hole; 6. collecting cover; 7. movable groove; 8. connecting rod; 9. installation cavity; 10. first fixed plate; 11. spring; 12. second fixed plate; 13. clamping sleeve; 14. scalpel; 15. baffle; 16. push rod; 17. fixed groove; 18. installation groove. DETAILED DESCRIPTION

[0019] 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.

[0020] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] Reference Figure 1-Figure 2 A sampling device for dermatology comprises a shell 1, a mounting cavity 9 is provided at one end of the shell 1, and a movable groove 7 communicating with the mounting cavity 9 is provided at the other end, the length of the mounting cavity 9 is greater than the length of the movable groove 7, a connecting rod 8 is coaxially provided in the mounting cavity 9, a push rod 2 connected to the connecting rod 8 is slidably provided in the movable groove 7, a flat plate is provided at the other end of the push rod 2, which is convenient for pressing and pushing the push rod 2, two limiting holes 5 are provided on the outer circumferential surface of the shell 1, the distance between the two limiting holes 5 is smaller than the distance between the flat plate and one end of the shell 1, a locking assembly adapted to the limiting holes 5 and used to lock the connecting rod 8 is provided on the connecting rod 8, a resetting assembly for resetting the connecting rod 8 is provided at one end of the movable groove 7 of the mounting cavity 9, and a locking assembly for sampling is provided at one end of the connecting rod 8 close to the resetting assembly A scalpel 14 for taking samples, when the scalpel 14 is not in use, one end of the connecting rod 8 is threadedly connected to the compression sleeve 13 on the outside of the scalpel 14 for fixing the scalpel 14 in the installation cavity 9 of the shell 1, and the scalpel 14 is fixed by the compression sleeve 13. The connecting rod 8 located in the installation cavity 9 is pushed out from the other end of the shell 1 by the push of the push rod 2, and the locking assembly on the connecting rod 8 locks and fixes the pushed-out connecting rod 8. At this time, the scalpel 14 is pushed out of the shell 1 for convenient sampling. When not in use, the connecting rod 8 is unlocked by the locking assembly, and the connecting rod 8 will be retracted into the shell 1 under the push of the reset assembly, and the scalpel 14 at one end of the connecting rod 8 will be retracted to prevent the scalpel 14 from being accidentally injured when not in use.

[0022] Reference Figure 3The locking assembly includes a pressure rod 4 and a push rod 16, both of which are made of elastic materials. The outer cylindrical surface of the shell 1 is fixedly connected with a fixing block 3 located on one side of the limiting hole 5. The pressure rod 4 is fixedly connected to one side of the fixing block 3 at an angle, and the push rod 16 is fixedly connected to the outer cylindrical surface of the connecting rod 8 at an angle. The push rod 16 and the pressure rod 4 are both provided with a limiting block extending into the limiting hole 5 at one end close to the shell 1, and each limiting block is adapted to the limiting hole 5. When the scalpel 14 is in the installation cavity 9, the limiting block of the push rod 16 is in the limiting block close to the side of the moving groove 7. When the scalpel 14 is used, the push rod 2 is pushed to move the connecting rod 8 out of the installation cavity 9, and the push rod 16 will be separated from the limiting hole 5 and move to another limiting hole 5. At this time, the scalpel 14 extends into the shell 1, and the limiting block of the push rod 16 is embedded in the limiting block, so that the connecting rod 8 is locked and fixed, which is convenient for the use of the scalpel 14.

[0023] Reference Figure 2 The reset assembly includes a spring 11, a first fixed plate 10 is fixedly connected to the outer cylindrical surface of the connecting rod 8, and a second fixed plate 12 is fixedly connected to the inner wall of the mounting cavity 9. The connecting rod 8 slides through the second fixed plate 12, and the spring 11 is fixedly connected between the first fixed plate 10 and the second fixed plate 12. As the connecting rod 8 moves, the first fixed plate 10 compresses the spring 11, making the spring 11 shorter. When the limit block of the push rod 16 is embedded in the limit hole 5, the spring 11 is in a compressed state. After the scalpel 14 is used, the limit block at the top of the pressure rod 4 pushes out the limit block of the push rod 16 in the limit hole 5. The spring 11 will push the first fixed plate 10 to move the connecting rod 8 up and reset. The push rod 16 on the connecting rod 8 enters the limit hole 5 on the other side from the limit hole 5 on one side, and the scalpel 14 is retracted into the mounting cavity 9 of the shell 1.

[0024] Reference Figure 4 The end of the connecting rod 8 for mounting the scalpel 14 is truncated cone-shaped. The truncated cone-shaped connecting rod 8 is from small to large end face, and a mounting groove 18 for inserting the scalpel 14 is provided at the top of the truncated cone. The mounting groove 18 is provided at the position of the small end face, and a thread is provided on the side wall of the truncated cone. The end of the compression sleeve 13 away from the connecting rod 8 is adapted to the truncated cone of the connecting rod 8. The small end of the compression sleeve 13 is communicated with the small end of the connecting rod 8, and the compression sleeve 13 is also provided with a thread matching the truncated cone thread. One end of the tight sleeve 13 is provided with a fixing groove 17 for the scalpel 14 to pass through. The scalpel 14 is first inserted into the mounting groove 18, and then the scalpel 14 passes through the mounting groove 18 on one side of the compression sleeve 13. Since the small end and the large end of the compression sleeve 13 are rotatably connected, the large end of the compression sleeve 13 is threadedly connected to the connecting rod 8, and the internal thread cooperates with the thread at the front end of the connecting rod 8, the connecting rods 8 on both sides of the mounting groove 18 are squeezed toward the scalpel 14, and the scalpel 14 is installed and fixed.

[0025] Reference Figure 1-Figure 2A collecting cover 6 is installed on the outer side of the housing 1 at one end of the housing 1 away from the push rod 2. By unscrewing the collecting cover 6, the sample can be collected on the one hand, and the scalpel 14 can be protected on the other hand.

[0026] Reference Figure 2 The inner diameter of the mounting cavity 9 is larger than the inner diameter of the movable groove 7. The end of the connecting rod 8 facing the push rod 2 is fixedly connected with a baffle 15 that is in contact with the inner wall of the mounting cavity 9. When the connecting rod 8 is reset, the baffle 15 at one end of the connecting rod 8 abuts against the inner wall of the mounting cavity 9 to prevent the connecting rod 8 from being pushed out of the mounting cavity 9 as a whole.

[0027] Working principle:

[0028] First, by pressing the push rod 2, the movement of the push rod 2 pushes the connecting rod 8 to push the scalpel 14 out of the housing 1, and the push rod 16 on the connecting rod 8 moves from the limiting hole 5 on one side to the limiting hole 5 on the other side, and the connecting rod 8 is locked and fixed. At the same time, the first fixed plate 10 compresses the spring 11. When the scalpel 14 is retracted, the push rod 16 in the limiting hole 5 is pushed out by the pressure rod 4, and the spring 11 pushes the first fixed plate 10 to move to one side. At the same time, the push rod 16 on the connecting rod 8 moves from the limiting hole 5 on one side to the limiting hole 5 on the other side again, so that the scalpel 14 is retracted to prevent accidental injury.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A dermatological sampling device, comprising a housing (1), characterized in that: The housing (1) is provided with a mounting cavity (9) at one end and a movable groove (7) communicating with the mounting cavity (9) at the other end. A connecting rod (8) is coaxially arranged in the mounting cavity (9). A push rod (2) connected to the connecting rod (8) is slidably arranged in the movable groove (7). Two limiting holes (5) are arranged on the outer circumferential surface of the housing (1). A locking assembly matching the limiting holes (5) and used for locking the connecting rod (8) is provided on the connecting rod (8). A reset assembly for resetting the connecting rod (8) is provided at one end of the movable groove (7) of the mounting cavity (9). A scalpel (14) for taking samples is installed at one end of the connecting rod (8) close to the reset assembly. One end of the connecting rod (8) is threadedly connected to a compression sleeve (13) for fixing the scalpel (14) on the outside of the scalpel (14).

2. A dermatological sampling device according to claim 1, characterized in that: The locking assembly comprises a pressure rod (4) and a push rod (16); the outer circumferential surface of the housing (1) is fixedly connected to a fixing block (3) located on one side of the limiting hole (5); the pressure rod (4) is fixedly connected to one side of the fixing block (3) at an angle; the push rod (16) is fixedly connected to the outer circumferential surface of the connecting rod (8) at an angle; and the push rod (16) and the pressure rod (4) are both provided with a limiting block extending into the limiting hole (5) at one end close to the housing (1); each limiting block is matched with the limiting hole (5).

3. A dermatological sampling device according to claim 1, characterized in that: The reset assembly comprises a spring (11), the outer cylindrical surface of the connecting rod (8) is fixedly connected to a first fixing plate (10), the inner wall of the mounting cavity (9) is fixedly connected to a second fixing plate (12), the connecting rod (8) slides through the second fixing plate (12), and the spring (11) is fixedly connected between the first fixing plate (10) and the second fixing plate (12).

4. A dermatological sampling device according to claim 1, characterized in that: One end of the connecting rod (8) on which the scalpel (14) is mounted is truncated cone-shaped, and a mounting groove (18) for inserting the scalpel (14) is provided at the top of the truncated cone. The end of the compression sleeve (13) away from the connecting rod (8) is adapted to the truncated cone shape of the connecting rod (8), and one end of the compression sleeve (13) is provided with a fixing groove (17) for the scalpel (14) to pass through.

5. A dermatological sampling device according to claim 1, characterized in that: A collecting cover (6) sleeved on the outside of the shell (1) is installed at one end of the shell (1) away from the push rod (2).

6. A dermatological sampling device according to claim 1, characterized in that: The inner diameter of the installation cavity (9) is greater than the inner diameter of the movable groove (7), and one end of the connecting rod (8) facing the push rod (2) is fixedly connected to a baffle (15) that abuts against the inner wall of the installation cavity (9).

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