Waterproof device for preventing nail channel infection

Abstract

The invention relates to the technical field of scoliosis nursing instruments, and discloses a waterproof device for preventing nail channel infection, the waterproof device comprises a water retaining cover and a limiter, the water retaining cover is U-shaped with a downward opening, the water retaining cover is used for sleeving a bolt, the water retaining cover is provided with a connecting end and a limiting end which are opposite to each other, the connecting end is arranged towards a patient, and the limiting end is arranged towards the limiting end. The limiting end is inclined downwards; the limiter is detachably connected with the bolt and used for making contact with the limiting end so that the connecting end can abut against the skin of the patient. By arranging the water retaining cover arranged on the bolt in a sleeving mode, water deviating from the opening direction can be guided in the direction away from the bolt, and the probability that water and shampoo make contact with a wound is reduced; pressure is applied to the water retaining cover towards the skin of the patient through the limiting stopper, the connecting end of the water retaining cover can make close contact with the skin of the patient, the water retaining cover is fixed to the skin of the patient through the pressure, the waterproof effect is improved, and meanwhile the defect that the viscosity is reduced after waterproof dressing makes contact with water is overcome.

Description

Technical Field

[0001] The present application relates to the technical field of scoliosis care equipment, and in particular to a waterproof device for preventing nail tract infection. Background Art

[0002] In clinical treatment, head ring traction is one of the commonly used correction methods for patients with scoliosis. This treatment usually needs to last for 3 to 6 months in order to stabilize the spine and improve scoliosis. However, long-term traction may bring some complications, among which nail site infection is a common problem. Nail site infection not only increases the patient's pain, but may also lead to a prolonged treatment cycle and hinder the recovery process. Once an infection occurs, the patient's daily life and personal hygiene management will also be challenged. Infected wounds require special attention to prevent the spread or deterioration of the infection.

[0003] In order to avoid worsening of the infected area, patients with infected wounds are traditionally advised to avoid washing the infected area, especially washing their hair, because moisture and shampoo may enter the wound, increasing the risk of bacterial growth and infection. To solve this problem, medical staff usually recommend that patients wash their hair with their heads down, or use waterproof dressings to cover the infected area to reduce the probability of moisture and shampoo contacting the wound. However, due to the bolts fixed on the nail opening, the waterproof dressing cannot cover the gap between the patient's skin and the bolts well, and the part of the waterproof dressing that is bonded to the skin may cause a decrease in viscosity after contact with water, resulting in poor waterproof effect and an increased probability of infection in patients. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present application provides a water-retaining cover mounted on the bolt, which can guide water away from the outlet in the direction away from the bolt, so as to reduce the probability of contact between moisture and shampoo and the wound; and applies pressure toward the patient's skin through a limiter to bring the connecting end of the water-retaining cover into close contact with the patient's skin, and fix the water-retaining cover on the patient's skin by pressure, thereby increasing the waterproof effect while avoiding the disadvantage of decreased viscosity of the waterproof dressing after contact with water.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows: a waterproof device for preventing nail tract infection, comprising: a water shield, the shape of the water shield is a "U" shape with an opening downward, the water shield is used to be sleeved on the bolt, the water shield has a connecting end and a limiting end opposite to each other, the connecting end is arranged toward the patient, and the connecting end is used to connect with the patient's skin, and the limiting end is arranged to be tilted downward;

[0006] A stopper is detachably connected to the bolt, and is used to contact the limiting end to bring the connecting end into contact with the patient's skin.

[0007] Furthermore, the waterproof device further comprises: a water guiding portion, the water shield gradually expands along the opening direction to form the water guiding portion, and the water guiding portion is used to guide the falling liquid in a direction away from the bolt.

[0008] Furthermore, the connecting end includes: a sealing groove, which is arranged on the water shield in a direction parallel to the axis of the bolt, and both ends of the sealing groove are respectively located on the water guide part, and the sealing groove is used to be pressed on the patient's skin to reduce the gap.

[0009] Furthermore, a waterproof groove is formed on the surface of the water shield facing the bolt, and the openings of the waterproof groove facing the connecting end and the limiting end are respectively a connecting port and a limiting port, and the patient's skin covers the connecting port;

[0010] The waterproof device also includes: a baffle, which covers the limit opening and is provided with a first half-through groove opening downwardly penetrating the baffle along the axial direction of the bolt, wherein the inner diameter of the first half-through groove is not less than the outer diameter of the bolt, and the first half-through groove is used to be sleeved on the bolt.

[0011] Furthermore, the waterproof device further comprises: a rotating plate, the rotating plate is rotatably arranged on the baffle plate, the rotating plate is provided with a second half-through groove with an opening perpendicular to the bolt along the axial direction of the bolt, the inner diameter of the second half-through groove is not less than the outer diameter of the bolt, the second half-through groove is used to be sleeved on the bolt, and the rotating plate is driven to rotate and has an open state and a closed state:

[0012] In an open state, the opening direction of the second half-through groove is the same as the opening direction of the first half-through groove;

[0013] In a closed state, the opening direction of the second half-through slot is opposite to the opening direction of the first half-through slot, and the baffle plate and the rotating plate are used to form an annular waterproof structure sleeved on the bolt.

[0014] Furthermore, a receiving groove is provided in the first half-through groove, and the rotating plate is provided in the receiving groove.

[0015] Furthermore, the water shield is a transparent water shield;

[0016] The waterproof device further comprises: a block that changes color when in contact with water, and the block that changes color when in contact with water is arranged in the connection port.

[0017] Furthermore, the water-changing color block is provided with a third half-through groove opening downward along the axial direction of the bolt, the inner diameter of the third half-through groove is not less than the outer diameter of the bolt, and the water-changing color block is used to be sleeved on the bolt.

[0018] Further, the stopper comprises: two arc-shaped members;

[0019] The two arc-shaped members are hinged at one end and detachably connected at the other end through the locking pin. The two arc-shaped members form an annular structure that can be detachably sleeved on the bolt.

[0020] Furthermore, threads are arranged on the surfaces of the two arc-shaped members facing the bolt, and the two arc-shaped members form an annular structure which is threadedly connected to the bolt.

[0021] Beneficial effects: The present application provides a water-retaining cover sleeved on the bolt, which can guide water away from the outlet in the direction away from the bolt to reduce the probability of contact between moisture and shampoo and the wound; and through a limiter, the water-retaining cover applies pressure toward the patient's skin, so that the connecting end of the water-retaining cover can be in close contact with the patient's skin, and the water-retaining cover can be fixed on the patient's skin by pressure, thereby increasing the waterproof effect while avoiding the disadvantage of reduced viscosity of the waterproof dressing after contact with water. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic structural diagram of the waterproof device for preventing nail tract infection provided by the present invention (when in use);

[0023] Figure 2 A schematic diagram of the structure of a waterproof device for preventing nail tract infection from a viewing angle provided by the present invention;

[0024] Figure 3 For the present invention Figure 2 A partial cross-sectional view of

[0025] Figure 4 A schematic structural diagram of a waterproof device for preventing nail tract infection from another perspective provided by the present invention;

[0026] Figure 5 A schematic structural diagram of a waterproof device for preventing nail tract infection from yet another perspective provided by the present invention.

[0027] The marks in the accompanying drawings are: 100, water shield; 110, connecting end; 111, sealing groove; 120, limiting end; 130, water guide part; 140, waterproof groove; 141, connecting port; 142, limiting port; 200, baffle; 210, first half groove; 211, accommodating groove; 300, rotating plate; 310, second half groove; 400, water-changing block; 410, third half groove; 500, limiter; 510, arc-shaped member; 520, locking pin; 600, bolt; 700, head ring. DETAILED DESCRIPTION

[0028] The present invention provides a waterproof device for preventing nail duct infection. To make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0029] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component.

[0030] It should also be noted that the same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] The invention is further described below by describing embodiments in conjunction with the accompanying drawings.

[0033] This embodiment provides a waterproof device for preventing nail tract infection. Figures 1 to 5 As shown in the figure, in order to solve the above technical problems, the technical solution adopted by the present invention is as follows: it includes a water shield 100 and a limiter 500, the water shield 100 is used to guide water away from the outlet direction in the direction away from the bolt 600, and the limiter 500 is used to fix the water shield 100 on the patient's skin to reduce the gap between the water shield 100 and the skin, while increasing the waterproof effect, it also avoids the disadvantage of reduced viscosity of the waterproof dressing after contact with water.

[0034] The water shield 100 is in a "U" shape with an opening facing downward, and is used to be sleeved on the bolt 600. In actual use, the opening of the water shield 100 can be aligned with the bolt 600, and the water shield 100 can be moved downward from above the bolt 600. Since the water shield 100 has a downward opening, the water shield 100 can be conveniently sleeved and covered on the bolt 600. Specifically, the opening size of the water shield 100 is larger than the bolt 600.

[0035] The water shield 100 has a connecting end 110 and a limiting end 120 that are opposite to each other. The connecting end 110 is arranged toward the patient, and the connecting end 110 is used to connect with the patient's skin. The limiting end 120 is arranged to be tilted downward. Specifically, the top surface of the water shield 100 is arranged to be tilted downward in the direction toward the limiting end 120. When the patient washes his hair, the sewage will slide down along the top surface of the limiting end 120. Since the height of the limiting end 120 is lower than the height of the connecting end 110, the sewage will move in a direction away from the nail passage opening, reducing the probability of the sewage contacting the nail passage opening, so as to reduce the probability of infection at the nail passage opening. The limiter 500 is detachably connected to the bolt 600, and the limiter 500 is used to contact the limiting end 120 to abut the connecting end 110 against the patient's skin. Specifically, the water shield 100 is fixed to the bolt 600 by the limiter 500 so that the connecting end 110 of the water shield 100 abuts against the patient's skin. The limiter 500 can apply pressure to the water shield 100 in the direction of the patient's skin. The water shield 100 can be fixed on the patient's skin by the pressure so that the connecting end 110 is in close contact with the patient's skin, thereby increasing the waterproof effect and avoiding the disadvantage of reduced viscosity of the waterproof dressing after contact with water.

[0036] In actual use, the opening of the water shield 100 can be aligned with the bolt 600, and the water shield 100 can be moved downward from the top of the bolt 600. Since the water shield 100 has a downward opening, the water shield 100 can be easily set and covered on the bolt 600. Then the stopper 500 is fixed to the bolt 600 so that the water shield 100 is located between the stopper 500 and the patient's skin. By adjusting the position of the stopper 500, the stopper 500 can apply a force toward the patient's skin to the water shield 100. At this time, the water shield 100 can be connected to the patient's skin. Since the gap between the water shield 100 and the skin is small, it has a better waterproof effect. At the same time, since the water shield 100 and the skin do not need to be connected by glue or other bonding methods, even if it comes into contact with water, it will not affect the stability of the water shield 100 and the skin, avoiding the disadvantage of the waterproof dressing causing a decrease in viscosity after contact with water. Furthermore, since the water shield 100 does not completely cover the nail opening, it has good air permeability and is more comfortable to use than a waterproof method of directly sticking a waterproof dressing to the skin.

[0037] In one embodiment, Figures 1 to 5 As shown in , the waterproof device further includes: a water guide 130, the water shield 100 gradually expands along the opening direction to form the water guide 130, and the water guide 130 is used to guide the falling liquid in a direction away from the bolt 600. When the patient washes his hair, the sewage will slide down along the top surface of the limiting end 120. Due to the action of the water guide 130, the sewage will move in a direction away from the nail channel opening, reducing the probability of the sewage contacting the nail channel opening, so as to reduce the probability of infection at the nail channel opening.

[0038] In one embodiment, Figures 1 to 5 As shown in , the connection end 110 includes: a sealing groove 111, and the sealing groove 111 is arranged on the water shield 100 in a direction parallel to the axis of the bolt 600. In actual use, since the limiter 500 is arranged on the bolt 600, the limiter 500 can apply pressure to the connection end 110 in the direction of the patient's skin (in the direction parallel to the axis of the bolt 600). Therefore, the sealing groove 111 is arranged in a direction parallel to the axis of the bolt 600, so that the patient's skin located at the opening of the sealing groove 111 can be better squeezed into the sealing groove 111 when pressure is applied, so that the contact area between the patient's skin and the water shield 100 is larger and the connection is tighter, so as to enhance the waterproof effect. And the two ends of the sealing groove 111 are respectively located on the water guide part 130, and the sealing groove 111 is used to press on the patient's skin to reduce the gap. Specifically, since the patient's skin is squeezed into the sealing groove 111, the air pressure in the sealing groove 111 will increase. The other air inside the sealing groove 111 can be discharged through the openings at both ends of the sealing groove 111 to increase the contact area between the patient's skin and the water shield 100. The two ends of the sealing groove 111 are respectively located on the water guide 130, and the openings at both ends of the sealing groove 111 are preferably set downward to prevent sewage from entering the sealing groove 111 when washing hair. Preferably, the cross-section of the sealing groove 111 is half-moon-shaped, which can make it easier for the patient's skin to fit the inner wall of the sealing groove 111 when entering the sealing groove 111, so as to increase the contact area between the patient's skin and the water shield 100, and also reduce the patient's discomfort.

[0039] In one embodiment, Figures 1 to 3 , Figure 5 As shown in the figure, a waterproof groove 140 is formed on the surface of the water shield 100 facing the bolt 600, and the openings of the waterproof groove 140 facing the connection end 110 and the limit end 120 are respectively a connection port 141 and a limit port 142, and the patient's skin covers the connection port 141. In actual use, part of the bolt 600 is located in the waterproof groove 140, and the nail channel opening is located in the connection port 141;

[0040] The waterproof device also includes: a baffle 200, which is arranged to cover the limit opening 142, and the baffle 200 is provided with a first half-through groove 210 opening downward along the axial direction of the bolt 600, and the inner diameter of the first half-through groove 210 is not less than the outer diameter of the bolt 600, and the first half-through groove 210 is used to be sleeved on the bolt 600.

[0041] Preferably, the bottom end of the baffle 200 is arranged vertically downward or away from the nail passage, so that when the patient washes his hair, the sewage moves in the direction away from the nail passage, reducing the probability of sewage contacting the nail passage, and reducing the probability of infection at the nail passage. The baffle 200 may be provided with an elastic coating such as a rubber layer on the edge of the first half-through groove 210 to reduce the gap between the baffle 200 and the bolt 600. A thread may also be provided in the first half-through groove 210, so that the baffle 200 can be threadedly connected with the bolt 600, and the waterproof performance can be enhanced when the first half-through groove 210 is sleeved on the bolt 600.

[0042] In one embodiment, Figure 2 , Figure 3 As shown in , the waterproof device also includes: a rotating plate 300, which is rotatably arranged on the baffle 200, and the rotating plate 300 is provided with a second half-through groove 310 with an opening perpendicular to the bolt 600 along the axial direction of the bolt 600, and the inner diameter of the second half-through groove 310 is not less than the outer diameter of the bolt 600, and the second half-through groove 310 is used to be sleeved on the bolt 600, and the rotating plate 300 is driven to rotate and has an open state and a closed state:

[0043] In the open state, the opening direction of the second half through-slot 310 is the same as the opening direction of the first half through-slot 210;

[0044] In the closed state, the opening direction of the second half-through groove 310 is opposite to the opening direction of the first half-through groove 210 , and the baffle 200 and the rotating plate 300 are used to form an annular waterproof structure that is sleeved on the bolt 600 .

[0045] In actual use, the rotating plate 300 can be adjusted to an open state first. At this time, the opening direction of the second half-through groove 310 is the same as the opening direction of the first half-through groove 210. Therefore, the first half-through groove 210 and the second half-through groove 310 can be easily mounted on the bolt 600. Then, the stopper 500 is fixed to the bolt 600 so that the water shield 100 is located between the stopper 500 and the patient's skin. By adjusting the position of the stopper 500, the stopper 500 can apply a force toward the patient's skin to the water shield 100. Finally, the rotating plate 300 is rotated so that the rotating plate 300 is in a closed state. At this time, the baffle 200 and the rotating plate 300 form an annular waterproof structure mounted on the bolt 600 to reduce the gap between the water shield 100 and the bolt 600, enhance the waterproof performance, and prevent sewage from flowing into the nail channel through the end of the bolt 600 away from the nail channel.

[0046] In one embodiment, Figures 1 to 3 , Figure 5 As shown in FIG. 1 , a receiving groove 211 is provided in the first half-through groove 210, and the rotating plate 300 is provided in the receiving groove 211. When the rotating plate 300 is in a closed state, two surfaces of the rotating plate 300 are respectively in contact with the baffle 200, which can greatly reduce the gap between the baffle 200 and the rotating plate 300 to enhance the waterproof performance.

[0047] In one embodiment, Figure 3 , Figure 5 As shown in , the water shield 100 is a transparent water shield 100;

[0048] The waterproof device further includes a water-changing color block 400 , which is disposed in the connection port 141 .

[0049] Specifically, the water-chromic block 400 can be made by applying water-chromic ink to a block-shaped object. When sewage flows into the waterproof groove 140 through the connecting port 141 or the limiting port 142, it can come into contact with the water-chromic block 400. The water-chromic block 400 will change color or pattern when it comes into contact with water. The water shield 100 is transparent, and medical staff or patients can simply observe the state of the water-chromic block 400 through the water shield 100, thereby simply judging whether there is water in the bolt 600 in the waterproof groove 140 and taking timely measures.

[0050] In one embodiment, Figure 3 , Figure 5 As shown in the figure, the water-changing color block 400 is provided with a third half-through groove 410 opening downward along the axial direction of the bolt 600, and the inner diameter of the third half-through groove 410 is not less than the outer diameter of the bolt 600, and the water-changing color block 400 is used to be sleeved on the bolt 600.

[0051] Specifically, when the sewage contacts the part of the bolt 600 in the waterproof groove 140, it is easy to flow along the bolt 600 into the nail channel opening. When the sewage flows along the bolt 600, it first contacts the water-changing color block 400 before contacting the nail channel opening. The water-changing color block 400 will change color or pattern when it contacts water, and the water shield 100 is transparent. Medical staff or patients can simply observe the state of the water-changing color block 400 through the water shield 100, thereby simply judging whether there is water in the bolt 600 in the waterproof groove 140 and taking timely measures.

[0052] Specifically, the water-chromatic block 400 is made of a water-absorbing sponge and water-chromatic ink. When the sewage flows along the bolt 600, it first contacts the water-chromatic block 400. At this time, the water-chromatic block 400 can absorb the sewage to prevent the sewage from directly contacting the nail opening after passing through the water-chromatic block 400, so as to be processed in time.

[0053] In one embodiment, Figure 1 , Figure 2 , Figure 4 As shown in , the stopper 500 includes: two arc-shaped members 510;

[0054] The locking pin 520 , one end of the two arc-shaped members 510 are hinged to each other, and the other end is detachably connected through the locking pin 520 , and the two arc-shaped members 510 form an annular structure that can be detachably sleeved on the bolt 600 .

[0055] Communicative, the locking pin 520 is a screw.

[0056] In one embodiment, Figure 1 As shown in FIG. 5 , threads are arranged on the surfaces of the two arc-shaped members 510 facing the bolt 600 , and the two arc-shaped members 510 form an annular structure that is threadedly connected to the bolt 600 .

[0057] In summary, the present application relates to the technical field of scoliosis care equipment, and discloses a waterproof device for preventing nail tract infection, which includes a water shield and a stopper. The water shield is in the shape of a "U" with an opening downward, and is used to be sleeved on a bolt. The water shield has a relatively opposite connecting end and a limiting end, and the connecting end is arranged toward the patient, and the limiting end is arranged to be tilted downward; the limiter is detachably connected to the bolt, and the limiter is used to contact the limiting end to abut the connecting end against the patient's skin. The present application, by providing a water shield sleeved on the bolt, can guide water away from the outlet direction toward the direction away from the bolt to reduce the probability of contact between moisture and shampoo and the wound; and by applying pressure to the water shield toward the patient's skin through the stopper, the connecting end of the water shield can be in close contact with the patient's skin, and the water shield can be fixed on the patient's skin by pressure, thereby increasing the waterproof effect while also avoiding the disadvantage of decreased viscosity of the waterproof dressing after contact with water.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A waterproof device for preventing nail duct infection, characterized in that: include: A water shield, the shape of which is a "U" shape with an opening downward, the water shield is used to be sleeved on the bolt, the water shield has a connecting end and a limiting end opposite to each other, the connecting end is arranged toward the patient, and the connecting end is used to connect with the patient's skin, and the limiting end is arranged to be tilted downward; A stopper is detachably connected to the bolt, and is used to contact the limiting end to bring the connecting end into contact with the patient's skin.

2. The waterproof device for preventing nail tract infection according to claim 1, characterized in that: The waterproof device further comprises: a water guide portion, the water shield is gradually expanded along the opening direction to form the water guide portion, and the water guide portion is used to guide the falling liquid in a direction away from the bolt.

3. The waterproof device for preventing nail tract infection according to claim 2, characterized in that: The connecting end includes: a sealing groove, which is arranged on the water shield in a direction parallel to the axis of the bolt, and both ends of the sealing groove are respectively located on the water guide part, and the sealing groove is used to be pressed on the patient's skin to reduce the gap.

4. The waterproof device for preventing nail tract infection according to claim 1, characterized in that: The surface of the water shield facing the bolt forms a waterproof through groove, and the openings of the waterproof through groove facing the connecting end and the limiting end are respectively a connecting port and a limiting port, and the patient's skin covers the connecting port; The waterproof device also includes: a baffle, which covers the limit opening and is provided with a first half-through groove opening downwardly penetrating the baffle along the axial direction of the bolt, wherein the inner diameter of the first half-through groove is not less than the outer diameter of the bolt, and the first half-through groove is used to be sleeved on the bolt.

5. The waterproof device for preventing nail tract infection according to claim 4, characterized in that: The waterproof device further comprises: a rotating plate, which is rotatably arranged on the baffle plate, and the rotating plate is provided with a second half-through groove with an opening perpendicular to the bolt along the axial direction of the bolt, the inner diameter of the second half-through groove is not less than the outer diameter of the bolt, and the second half-through groove is used to be sleeved on the bolt, and the rotating plate is driven to rotate and has an open state and a closed state: In an open state, the opening direction of the second half-through groove is the same as the opening direction of the first half-through groove; In a closed state, the opening direction of the second half-through slot is opposite to the opening direction of the first half-through slot, and the baffle plate and the rotating plate are used to form an annular waterproof structure sleeved on the bolt.

6. The waterproof device for preventing nail tract infection according to claim 5, characterized in that: A receiving groove is arranged in the first half-through groove, and the rotating plate is arranged in the receiving groove.

7. The waterproof device for preventing nail tract infection according to claim 4, characterized in that: The water shield is a transparent water shield; The waterproof device further comprises: a block that changes color when in contact with water, and the block that changes color when in contact with water is arranged in the connection port.

8. The waterproof device for preventing nail tract infection according to claim 7, characterized in that: The water-discoloring block is provided with a third half-through groove opening downwardly along the axial direction of the bolt, the inner diameter of the third half-through groove is not less than the outer diameter of the bolt, and the water-discoloring block is used to be sleeved on the bolt.

9. The waterproof device for preventing nail tract infection according to claim 1, characterized in that: The limiter comprises: two arc-shaped members; The two arc-shaped members are hinged at one end and detachably connected at the other end through the locking pin. The two arc-shaped members form an annular structure that can be detachably sleeved on the bolt.

10. The waterproof device for preventing nail tract infection according to claim 9, characterized in that: Threads are arranged on the surfaces of the two arc-shaped members facing the bolts, and the two arc-shaped members form an annular structure which is threadably connected to the bolts.

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