Area-controllable liquid nitrogen freezing auxiliary pen for skin warts treatment

Abstract

This utility model relates to the field of filiform wart treatment technology, specifically a liquid nitrogen cryotherapy pen for treating skin warts with controllable area. It includes a pen body with an insertion interface at the top, into which a control cylinder is inserted. The outer wall of the control cylinder has a stepped structure and a locking groove for positioning and sealing. Moving plates are slidably connected to both sides of the pen body, with an elastic sheet for resetting and compression fixedly connected to the top of each moving plate. The elastic sheet has an arc-shaped structure. Pressing plates are located on both sides of the pen body, each with a rotating component at its top. The rotating component applies force to the moving plates, changing their position. A placement opening is located on the upper side wall of the pen body, with a filter screen between the placement opening and the insertion interface. A compression plate is slidably connected inside the placement opening. This utility model allows for the selection of different control cylinders according to the size of the wart and provides heat preservation during treatment to ensure therapeutic effectiveness.

Description

Technical Field

[0001] This utility model relates to the field of filiform wart treatment technology, specifically to a liquid nitrogen cryotherapy pen with controllable area for treating skin warts. Background Technology

[0002] Filiform warts are benign growths caused by the human papillomavirus (HPV), most commonly found on the face, especially the eyelids, and also frequently occurring on the neck and chin. They are primarily transmitted through direct contact or sharing personal items with an infected person. Injuries or broken skin greatly increase the risk of infection. A common treatment involves applying liquid nitrogen at temperatures below -100 degrees Celsius to the warts using a cotton swab. However, the size of the warts varies, making precise application difficult. Furthermore, the rapid evaporation of the liquid nitrogen during application can lead to less effective treatment. Utility Model Content

[0003] The purpose of this invention is to provide a liquid nitrogen cryotherapy pen with controllable area for the treatment of skin warts, in order to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an area-controllable liquid nitrogen cryotherapy pen for treating skin warts, comprising a pen body, an insertion interface at the top of the pen body, a control cylinder inserted into the insertion interface, the outer side wall of the control cylinder having a stepped structure, and a snap-fit ​​groove for positioning and compression sealing on the outer side wall of the control cylinder.

[0005] The pen body has sliding plates slidably connected to the inside of both sides, and the top of the sliding plates is fixedly connected to an elastic sheet for resetting and pressing. The elastic sheet has an arc-shaped structure.

[0006] Both sides of the pen body are provided with pressing plates, and the pressing plates have a rotating part at the top. The rotating part applies a force to the moving plate and changes the position of the moving plate.

[0007] The upper side wall of the pen body is provided with a placement opening, and a filter screen is provided between the placement opening and the insertion interface. A squeezing plate is slidably connected inside the placement opening, and a telescopic rod is fixedly connected to the top and bottom of the squeezing plate. Both sides of the telescopic rod are provided with drive plates for controlling the up and down movement of the telescopic rod.

[0008] Preferably, a telescopic spring is provided between the lower end of the telescopic rod and the pen body, and guide blocks are fixedly connected to both sides of the telescopic rod, with the side ends of the guide blocks having an inclined structure.

[0009] Preferably, the drive plate has a fan-shaped structure, with the corner of the drive plate rotatably connected to the pen body, one end of the drive plate protruding from the pen body, and the other end of the drive plate located inside the pen body.

[0010] Preferably, the upper end of the movable plate is fixedly connected to a snap-fit ​​connector, the upper and lower ends of the snap-fit ​​connector are both inclined, the lower inner wall of the snap-fit ​​groove is inclined, and the snap-fit ​​connector is snapped into the snap-fit ​​groove.

[0011] Preferably, the lower end of the movable plate has a U-shaped structure, the rotating component has a V-shaped structure, the middle of the rotating component is rotatably connected to the pen body, one end of the rotating component abuts against the inner wall of the lower end of the movable plate, and the other end of the rotating component abuts against the pressing plate.

[0012] Preferably, the control tube has cotton glued inside, a guide slope is provided at the lower end of the control tube, a positioning tube is provided at the lower end of the control tube, the positioning tube is fixedly connected to the pen body, and the upper end of the positioning tube is an inclined surface.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: Different sized control cylinders are selected according to the size of the wart, ensuring the wart is completely enclosed within the control cylinder. Then, cotton soaked in liquid nitrogen is placed into the placement opening, and the liquid nitrogen is squeezed out by the extrusion plate, allowing it to flow into the control cylinder for treatment. To enhance the treatment effect, cotton is adhered to the inner wall of the control cylinder to ensure effective application. Simultaneously, the control cylinder has a heat-insulating effect, preventing rapid evaporation of the liquid nitrogen and ensuring the therapeutic effect. Attached Figure Description

[0014] Figure 1 This is a schematic diagram illustrating the internal connections of the pen.

[0015] Figure 2 This is an enlarged view of point A.

[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the control cylinder and the positioning cylinder.

[0017] In the diagram: 1. Pen body, 2. Placement port, 3. Squeezing plate, 4. Telescopic rod, 5. Guide block, 6. Drive plate, 7. Telescopic spring, 8. Control cylinder, 9. Moving plate, 10. Snap connector, 11. Elastic sheet, 12. Pressing plate, 13. Filter screen, 14. Positioning cylinder, 15. Snap slot, 16. Guide slope, 17. Rotating component. Detailed Implementation

[0018] To enhance understanding of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described and introduced below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this utility model, not all embodiments, and are not intended to limit the embodiments in any way. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0019] Please see Figure 1-3 This utility model provides a technical solution: a liquid nitrogen cryotherapy pen for treating skin warts with controllable area, comprising a pen body 1, an insertion interface at the top of the pen body 1, a control cylinder 8 inserted into the insertion interface, the outer wall of the control cylinder 8 having a stepped structure, and a snap-fit ​​groove 15 for positioning and compression sealing on the outer wall of the control cylinder 8, movable plates 9 slidably connected to the inside of both sides of the pen body 1, and elastic sheets 11 for resetting and compression fixedly connected to the top of the movable plates 9, the elastic sheets 11 having an arc-shaped structure, and pressing plates on both sides of the pen body 1. 12. The pressing plate 12 has a rotating part 17 at its top. The rotating part 17 applies force to the moving plate 9 to change the position of the moving plate 9. The upper side wall of the pen body 1 has a placement port 2. A filter screen 13 is provided between the placement port 2 and the insertion interface. A squeezing plate 3 is slidably connected in the placement port 2. A telescopic rod 4 is fixedly connected to the top and bottom of the squeezing plate 3. Both sides of the telescopic rod 4 are provided with drive plates 6 for controlling the up and down movement of the telescopic rod 4. Before treatment, different sizes of control cylinders 8 are selected according to the size of the wart and the control cylinders 8 are inserted into the insertion interface.

[0020] A telescopic spring 7 is provided between the lower end of the telescopic rod 4 and the pen body 1. Guide blocks 5 are fixedly connected to both sides of the telescopic rod 4. The side ends of the guide blocks 5 are inclined structures. The drive plate 6 is a fan-shaped structure. The corner of the drive plate 6 is rotatably connected to the pen body 1. One end of the drive plate 6 protrudes from the pen body 1, and the other end of the drive plate 6 is located inside the pen body 1. Place the cotton soaked in liquid nitrogen into the placement port 2, and then press the drive plate 6. The drive plate 6 squeezes the guide block 5, thereby pushing the telescopic rod 4 and the squeezing plate 3 to move. The squeezing plate 3 squeezes the cotton, causing the liquid nitrogen in the cotton to flow into the control cylinder 8 to treat the warts in the control cylinder 8.

[0021] The upper end of the movable plate 9 is fixedly connected to a snap-fit ​​connector 10. The upper and lower ends of the snap-fit ​​connector 10 are both inclined. The lower inner wall of the snap-fit ​​groove 15 is also inclined. The snap-fit ​​connector 10 snaps into the snap-fit ​​groove 15. When the control cylinder 8 is inserted, the control cylinder 8 pushes the snap-fit ​​connector 10 open. When the snap-fit ​​connector 10 reaches the snap-fit ​​groove 15, the snap-fit ​​connector 10 snaps into the snap-fit ​​groove 15. The snap-fit ​​connector 10 presses against the inner wall of the snap-fit ​​groove 15, so that the control cylinder 8 and the positioning cylinder 14 are tightly connected to ensure sealing.

[0022] The lower end of the movable plate 9 has a U-shaped structure, and the rotating part 17 has a V-shaped structure. The middle of the rotating part 17 is rotatably connected to the pen body 1. One end of the rotating part 17 abuts against the inner wall of the lower end of the movable plate 9, and the other end of the rotating part 17 abuts against the pressing plate 12. When the control cylinder 8 is replaced, the drive plate 6 is pressed, and the drive plate 6 drives the rotating part 17 to rotate, thereby disengaging the snap connector 10 from the snap slot 15 and removing the control cylinder 8.

[0023] The inside of the control cylinder 8 is lined with cotton to ensure a cooling effect on the wart. The lower end of the control cylinder 8 is provided with a guide slope 16 and a positioning cylinder 14. The positioning cylinder 14 is fixedly connected to the pen body 1. The upper end of the positioning cylinder 14 is an inclined surface, so that the positioning cylinder 14 and the control cylinder 8 are tightly connected.

[0024] Before treating the warts, select a control cylinder 8 of different sizes according to the size of the warts, and insert the control cylinder 8 into the insertion interface. The control cylinder 8 pushes open the locking connector 10, so that the locking connector 10 and the locking groove 15 are locked together, and the control cylinder 8 is fixed in place. At this time, cotton soaked in liquid nitrogen is placed into the placement port 2. By pressing the drive plate 6, the squeezing plate 3 is moved. The squeezing plate 3 squeezes the cotton, so that the liquid nitrogen in the cotton flows into the control cylinder 8, and the wart in the control cylinder 8 is cryotreated.

[0025] Although embodiments of the present invention have been shown and described, it should be emphasized that the above description is merely an introduction and description of the usage of the embodiments of the present invention, and is not intended to limit the present invention in any way. Those skilled in the art will understand 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. An area-controllable liquid nitrogen cryotherapy assisted pen for skin warts treatment, comprising a pen body (1), characterized in that: The pen body (1) has an insertion interface at the top, and a control cylinder (8) is inserted into the insertion interface. The outer wall of the control cylinder (8) has a stepped structure, and the outer wall of the control cylinder (8) has a snap-fit ​​groove (15) for positioning and compression sealing. The pen body (1) has sliding plates (9) on both sides inside. The top of the sliding plate (9) is fixedly connected to an elastic sheet (11) for resetting and pressing. The elastic sheet (11) has an arc-shaped structure. The pen body (1) is provided with pressing plates (12) on both sides. The pressing plate (12) has a rotating part (17) at the top. The rotating part (17) applies force to the moving plate (9) to change the position of the moving plate (9). The upper side wall of the pen body (1) is provided with a placement opening (2), and a filter screen (13) is provided between the placement opening (2) and the insertion interface. A pressing plate (3) is slidably connected inside the placement opening (2), and a telescopic rod (4) is fixedly connected to the top and bottom of the pressing plate (3). Both sides of the telescopic rod (4) are provided with drive plates (6) for controlling the up and down movement of the telescopic rod (4).

2. The area-controllable liquid nitrogen cryotherapy auxiliary pen for skin warts treatment according to claim 1, characterized in that: A telescopic spring (7) is provided between the lower end of the telescopic rod (4) and the pen body (1). Guide blocks (5) are fixedly connected to both sides of the telescopic rod (4), and the side ends of the guide blocks (5) are inclined.

3. The area-controllable liquid nitrogen cryotherapy auxiliary pen for skin warts treatment according to claim 1, characterized in that: The drive plate (6) has a fan-shaped structure. The corner of the drive plate (6) is rotatably connected to the pen body (1). One end of the drive plate (6) protrudes from the pen body (1), and the other end of the drive plate (6) is located inside the pen body (1).

4. The area-controllable liquid nitrogen cryotherapy auxiliary pen for skin warts treatment according to claim 1, characterized in that: The upper end of the movable plate (9) is fixedly connected to a snap-fit ​​connector (10). The upper and lower ends of the snap-fit ​​connector (10) are inclined. The lower inner wall of the snap-fit ​​groove (15) is inclined. The snap-fit ​​connector (10) is snapped into the snap-fit ​​groove (15).

5. The area-controllable liquid nitrogen cryotherapy pen for treating skin warts according to claim 1, characterized in that: The lower end of the movable plate (9) is a U-shaped structure, and the rotating part (17) is a V-shaped structure. The middle of the rotating part (17) is rotatably connected to the pen body (1). One end of the rotating part (17) abuts against the inner wall of the lower end of the movable plate (9), and the other end of the rotating part (17) abuts against the pressing plate (12).

6. The area-controllable liquid nitrogen cryopencil for skin warts treatment according to claim 1, characterized in that: The control cylinder (8) has cotton stuck inside. The lower end of the control cylinder (8) is provided with a guide slope (16). The lower end of the control cylinder (8) is provided with a positioning cylinder (14). The positioning cylinder (14) is fixedly connected to the pen body (1). The upper end of the positioning cylinder (14) is an inclined surface.

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