Skin preparation knife for perianal skin preparation

By designing a thin, flat structure for the perianal skin preparation knife and integrating a soap-dispensing function, the problems of difficult perianal skin preparation and cumbersome materials have been solved, achieving a convenient and efficient perianal skin preparation operation.

CN223734935UActive Publication Date: 2025-12-30WEST CHINA FOURTH HOSPITAL OF SICHUAN UNIV
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Patent Information

Application Number
CN202520187279.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-07
Publication Date
2025-12-30
Estimated Expiration
2035-02-07

AI Technical Summary

Technical Problem

Existing shaving knives are difficult to insert and operate when shaving the perianal area, and require additional soap and lotion for application, making them inconvenient to use.

Method used

A perianal skin preparation knife was designed, which adopts a rectangular base plate, blade, cover plate and hand plate structure. The whole is thin and flat, integrating an application plate and a soap sac. The application plate is connected to the cover plate, and the soap sac is threadedly connected to the connecting sleeve through a rigid connector. The blade is curved into an arc shape, which is suitable for perianal skin preparation.

Benefits of technology

It achieves convenience and integration in perianal skin preparation, reduces the required items, and improves the convenience and efficiency of perianal skin preparation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a skin preparation knife for perianal skin preparation, and relates to the field of medical tools. The skin preparation knife for perianal skin preparation comprises a bottom plate, a blade, a cover plate and a handheld plate, the bottom plate, the blade and the cover plate are rectangular and arranged in the same direction, comb tooth structures are arranged at the two ends or any end of the bottom plate in the width direction, the blade is placed on the bottom plate, the cutting edge of the blade corresponds to the comb tooth structures in position, the cover plate covers the blade, and the cover plate is detachably connected with the bottom plate and presses the blade. The handheld plate is parallel to the cover plate and connected with one end of the cover plate in the length direction. According to the skin preparation knife, an existing mode that the handle is perpendicular to the blade is improved into a mode that the handheld plate is parallel to the cover plate, and therefore the whole skin preparation knife is in a sheet shape. Due to the fact that the whole skin preparation knife is in a sheet shape, the skin preparation knife can easily stretch into the position between the two buttocks of a patient during perianal skin preparation, then the skin preparation knife is translated leftwards or rightwards, and perianal hair can be shaved off.
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Description

TECHNICAL FIELD

[0001] The utility model relates to medical tool field especially, a skin preparation knife for perianal skin preparation. BACKGROUND

[0002] Skin preparation refers to the surgical preparation of shaving hair and body surface cleaning in the corresponding part of operation, which is the work of cleaning the operation area of the patient before operation.

[0003] The common skin preparation is similar to the shaving razor used in daily life, including the bottom plate, the blade, the cover plate and the handle, the bottom plate and the cover plate clamp the blade, the handle is perpendicular to the bottom plate and is connected, the handle is also perpendicular to the blade, the bottom plate has the comb tooth structure, and the blade edge and the comb tooth structure have about 0.5mm distance. The skin preparation process is also like daily life shaving, and the skin preparation area is lubricated with soap solution to soften the hair, and then the skin preparation knife is used to remove the hair.

[0004] The above-mentioned skin preparation knife has no inconvenience in many parts of the human body, but when performing hemorrhoid surgery and other operations near the anus, skin preparation is needed around the anus. Figure 1 As shown in the figure, due to the block of the human buttocks, the perianal part is narrow, and it is difficult to extend the skin preparation knife into the human body between the buttocks for skin preparation, especially for obese patients, the muscles are more and closer, and it is more difficult to use the common skin preparation knife for perianal skin preparation.

[0005] In addition, as described above, skin preparation often also needs to apply soap solution to the skin preparation site, so in addition to preparing the skin preparation knife, soap solution and soap solution application articles are also needed, and more articles are needed. UTILITY MODEL CONTENT

[0006] The utility model solves the technical problem that a skin preparation knife suitable for skin preparation around the anus is provided.

[0007] The technical scheme adopted to solve the above-mentioned problem is that the skin preparation knife for perianal skin preparation includes a bottom plate, a blade, a cover plate and a hand plate, the shapes of the bottom plate, the blade and the cover plate are all rectangular and are arranged in the same direction, the two ends or any end of the bottom plate in the width direction is provided with a comb tooth structure, the blade is placed on the bottom plate, the blade edge of the blade corresponds to the position of the comb tooth structure, the cover plate covers the blade, and the cover plate and the bottom plate are detachably connected and press the blade; the hand plate is parallel to the cover plate, and one end of the hand plate and the cover plate in the length direction is connected.

[0008] Furthermore, the top surface of the base plate is a convex arc, and the bottom surface of the cover plate is a concave arc that matches the convex arc. The blade bends into an arc shape under the action of the convex and concave arcs.

[0009] Furthermore, the distance between the blade and the bottom surface of the base plate and the end face of the base plate in the width direction are both 0.5mm.

[0010] Furthermore, the base plate has a connecting post, and the connecting post has a deformation groove extending downward from the top of the connecting post. The deformation groove divides the connecting post into two connecting post halves, and the top of the connecting post halves is provided with a triangular hook. The cover plate has a connecting hole, and the blade has a blade hole. The connecting post passes through the blade hole and the connecting hole, and the triangular hook hooks onto the cover plate.

[0011] Furthermore, the connecting hole is a countersunk hole, and the triangular hook does not extend beyond the upper surface of the cover plate.

[0012] Furthermore, the perianal skin preparation knife includes a smear, which is connected to the upper surface of the cover plate, and the smear and the hand-held plate are respectively connected to both ends of the cover plate.

[0013] Furthermore, the smear is made of foam.

[0014] Furthermore, the perianal skin preparation knife includes a soap sac, and a connecting sleeve is provided on the end of the handpiece that is not connected to the cover plate. The soap sac includes a flexible sac body and a rigid connector. The rigid connector is inserted into the connecting sleeve and threadedly connected to the connecting sleeve. The end face of the rigid connector is in close contact with the bottom surface of the inner hole of the connecting sleeve. The rigid connector has a soap output hole, and the soap sac is filled with soap.

[0015] Furthermore, the angle between the centerline of the handheld plate along its length and the centerline of the cover plate along its length is α, where 30°≤α≤45°.

[0016] The beneficial effects of this utility model are: This utility model improves upon the existing design where the handle is perpendicular to the blade by making the hand grip and cover plate parallel, thus giving the leather-preparing knife a thin, flat shape. For example... Figure 9 As shown, because the shaving blade is thin and flat, it can be easily inserted between the patient's buttocks during perianal shaving. The blade can then be moved left or right to shave the perianal hair. Therefore, this invention has the beneficial effect of facilitating perianal shaving. Attached Figure Description

[0017] Figure 1 A diagram illustrating perianal skin preparation using an existing skin preparation razor;

[0018] Figure 2 This is a front view of a perianal skin preparation razor;

[0019] Figure 3 yes Figure 2 Enlarged view on the left;

[0020] Figure 4 This is a top view of a skin preparation razor used for perianal skin preparation;

[0021] Figure 5 yes Figure 4 Enlarged view on the left;

[0022] Figure 6 yes Figure 3 AA section view;

[0023] Figure 7 This is a diagram showing the disassembled state of the base plate, blade, and cover plate;

[0024] Figure 8 This is a diagram of the soap liquid capsule structure;

[0025] Figure 9 This is a schematic diagram of the perianal skin preparation knife of this utility model;

[0026] Figure 10 This is a structural diagram of another type of perianal skin preparation knife;

[0027] The following are labeled in the diagram: base plate 1, comb structure 11, connecting post 12, deformation groove 121, connecting post half 122, triangular hook 123, arc-shaped convex surface 13, blade 2, blade hole 21, cover plate 3, connecting hole 31, arc-shaped concave surface 32, application sheet 4, handheld plate 5, connecting sleeve 6, soap liquid bladder 7, flexible bladder 72, rigid connector 71. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0029] like Figures 1 to 8 As shown, the perianal skin preparation knife includes a base plate 1, a blade 2, a cover plate 3, and a hand-held plate 5. The base plate 1, blade 2, and cover plate 3 are all rectangular in shape and arranged in the same direction. The base plate 1 has a comb structure 11 at both ends or either end in the width direction. The blade 2 is placed on the base plate 1, and the blade edge of the blade 2 corresponds to the position of the comb structure 11. The cover plate 3 covers the blade 2 and is detachably connected to the base plate 1 to press the blade 2. The hand-held plate 5 is parallel to the cover plate 3 and is connected to one end of the cover plate 3 in the length direction.

[0030] This invention improves upon the existing design where the handle is perpendicular to the blade by making the hand grip 5 parallel to the cover plate 3, thus giving the leather-preparing knife a thin, sheet-like shape. Figure 9 As shown, because the shaving blade is thin, it can be easily inserted between the patient's buttocks during perianal shaving. The blade can then be moved left or right to shave the perianal hair. During shaving, the base plate 1 can be flush with the skin or at a small angle to the skin.

[0031] The comb tooth structure 11 is a structure like a comb, having a plurality of grooves close to each other and arranged in a row.

[0032] The blade 2 can be basically the same as the blade of an existing razor. Preferably, the top surface of the bottom plate 1 is an arc-shaped convex surface 13, the bottom surface of the cover plate 3 is an arc-shaped concave surface 32 matched with the arc-shaped convex surface 13, and the blade 2 is bent into an arc shape under the action of the arc-shaped convex surface 13 and the arc-shaped concave surface 32. In this way, the cutting edge of the blade 2 is arranged obliquely downward, which is more conducive to removing hair.

[0033] Specifically, the distance between the cutting edge and the bottom surface of the bottom plate 1 and the distance between the cutting edge and the end surface in the width direction of the bottom plate 1 are both 0.5 mm. The requirement has the significance that the cutting edge of the blade 2 is prevented from being too close to the skin to damage the skin during shaving, and the cutting edge of the blade 2 is prevented from being too far away from the skin to cause difficulty in removing hair or cause the remaining hair to be too long after removal.

[0034] The cover plate 3 and the bottom plate 1 are detachably connected and press the blade 2, and the cover plate 3 and the bottom plate 1 are detached, so that the blade 2 can be detached and discarded, which is conducive to subsequent classification and treatment of medical waste. The cover plate 3 and the bottom plate 1 can be detachably connected in the following specific manner: the bottom plate 1 has a connecting column 12, the connecting column 12 has a deformation groove 121 extending downward from the top end of the connecting column 12, the deformation groove 121 divides the connecting column 12 into two connecting column halves 122, and the top of the connecting column half 122 is provided with a triangular hook 123; the cover plate 3 has a connecting hole 31, the blade 2 has a blade hole 21, the connecting column 12 passes through the blade hole 21 and the connecting hole 31, and the triangular hook 123 hooks the cover plate 3.

[0035] When connected, the connecting hole 31 is aligned with the connecting column 12, the cover plate 3 is pressed down, the hole wall of the connecting hole 31 presses the triangular hook 123, and the connecting column half 122 swings inward; then, the triangular hook 123 can pass through the connecting hole 31; after passing through, the connecting column half 122 rebounds, and the triangular hook 123 hooks the cover plate 3.

[0036] In order to avoid the connecting column 12 from contacting the skin of the patient and causing damage to the skin, the connecting hole 31 is preferably a countersunk hole, and the triangular hook 123 does not protrude above the upper surface of the cover plate 3.

[0037] Further, the razor for perianal skin preparation of the utility model preferably comprises an applicator 4, the applicator 4 is connected to the upper surface of the cover plate 3, and the applicator 4 and a hand-held plate 5 are respectively connected to the two ends of the cover plate 3. In this way, the razor integrates the soap liquid applicator, i.e., the applicator 4, which can be made of foam. The soap liquid is squeezed on the applicator 4, and the razor can be used to apply the soap liquid, without the need to prepare other soap liquid applicators.

[0038] In order to further facilitate the skin preparation, the skin preparation knife for perianal skin preparation preferably comprises a soap capsule 7, the end of the hand-held plate 5 not connected with the cover plate 3 is provided with a connecting sleeve 6, the soap capsule 7 comprises a flexible capsule body 72 and a hard joint 71, the hard joint 71 is inserted into the connecting sleeve 6 and is threadedly connected with the connecting sleeve 6, the end surface of the hard joint 71 is tightly attached to the bottom surface of the inner hole of the connecting sleeve 6, the hard joint 71 is provided with a soap output hole, and the soap capsule 7 is filled with soap.

[0039] The hand-held hard joint 71 is rotated, and the soap capsule 7 can be removed. The flexible capsule body 72 is squeezed, and the soap can be squeezed out. In this way, the skin preparation knife also integrates the soap, and the soap does not need to be prepared again during the skin preparation, and the skin preparation is more convenient. The end surface of the hard joint 71 is tightly attached to the bottom surface of the inner hole of the connecting sleeve 6, and the sealing of the soap is realized. In order to be more reliable in sealing, a sealing gasket can also be connected to the end surface of the hard joint 71.

[0040] The skin preparation knife for perianal skin preparation described above is mainly suitable for the skin preparation of perianal surgery, and although it can also be used for the skin preparation of other parts of the human body, it is not convenient. In order to expand the use range of the utility model, the utility model can be as shown in Figure 10 The angle between the center line of the length direction of the hand-held plate 5 and the center line of the length direction of the cover plate 3 is a, and 30°≤a≤45°. In this way, the skin preparation knife is still in the form of a sheet as a whole, and is still suitable for the skin preparation of the perianal part. And as shown in Figure 10 The skin preparation knife is vertically placed or is at a large angle with the skin, the tail end of the hand-held plate 5 is raised, the hand-held operation is facilitated, and in this way, the skin preparation knife can be suitable for the skin preparation of other parts of the human body.

Claims

1. A skin preparation knife for perianal skin preparation, characterized by: The utility model relates to a kind of soap cutting device, including bottom plate (1), blade (2), cover plate (3) and hand-held plate (5);Bottom plate (1), blade (2) and cover plate (3) are all rectangular and set in the same direction, and the both ends or either end of the width direction of bottom plate (1) is provided with comb structure (11), blade (2) is placed on bottom plate (1), and the cutting edge of blade (2) is positionally corresponding with comb structure (11), cover plate (3) is covered on blade (2), and cover plate (3) is detachably connected with bottom plate (1) and compresses tightly blade (2);Hand-held plate (5) is parallel with cover plate (3), and one end of the length direction of hand-held plate (5) is connected with cover plate (3).

2. The skin-preparation knife for perianal skin preparation according to claim 1, characterized by: The top surface of bottom plate (1) is arc convex surface (13), and the bottom surface of cover plate (3) is arc concave surface (32) matched with arc convex surface (13), and blade (2) is curved into arc shape under the action of arc convex surface (13) and arc concave surface (32).

3. The skin-preparation knife for perianal skin preparation according to claim 2, characterized by: The distance between cutting edge and the bottom surface of bottom plate (1) and the end surface of the width direction of bottom plate (1) is 0.5mm.

4. The skin-preparation knife for perianal skin preparation according to claim 1, characterized by: Bottom plate (1) is provided with connecting column (12), connecting column (12) is provided with deformation groove (121) extending downward from the top end of connecting column (12), deformation groove (121) divides connecting column (12) into two connecting column halves (122), and the top of connecting column half (122) is provided with triangular hook (123);Cover plate (3) is provided with connecting hole (31), and blade (2) is provided with blade hole (21), connecting column (12) passes through blade hole (21) and connecting hole (31), and triangular hook (123) hooks cover plate (3).

5. The skin-preparation knife for perianal skin preparation according to claim 4, characterized by: Connecting hole (31) is countersunk hole, and triangular hook (123) does not exceed the upper surface of cover plate (3).

6. The skin-preparation razor for perianal skin preparation according to any one of claims 1 to 5, characterized in that: The utility model relates to a kind of soap cutting device, including bottom plate (1), blade (2), cover plate (3) and hand-held plate (5);Bottom plate (1), blade (2) and cover plate (3) are all rectangular and set in the same direction, and the both ends or either end of the width direction of bottom plate (1) is provided with comb structure (11), blade (2) is placed on bottom plate (1), and the cutting edge of blade (2) is positionally corresponding with comb structure (11), cover plate (3) is covered on blade (2), and cover plate (3) is detachably connected with bottom plate (1) and compresses tightly blade (2);Hand-held plate (5) is parallel with cover plate (3), and one end of the length direction of hand-held plate (5) is connected with cover plate (3).

7. The skin-preparation knife for perianal skin preparation according to claim 6, characterized by: The utility model relates to a kind of soap cutting device, including bottom plate (1), blade (2), cover plate (3) and hand-held plate (5);Bottom plate (1), blade (2) and cover plate (3) are all rectangular and set in the same direction, and the both ends or either end of the width direction of bottom plate (1) is provided with comb structure (11), blade (2) is placed on bottom plate (1), and the cutting edge of blade (2) is positionally corresponding with comb structure (11), cover plate (3) is covered on blade (2), and cover plate (3) is detachably connected with bottom plate (1) and compresses tightly blade (2);Hand-held plate (5) is parallel with cover plate (3), and one end of the length direction of hand-held plate (5) is connected with cover plate (3).

8. The skin-preparation knife for perianal skin preparation according to claim 7, characterized by: The utility model relates to a kind of soap cutting device, including bottom plate (1), blade (2), cover plate (3) and hand-held plate (5);Bottom plate (1), blade (2) and cover plate (3) are all rectangular and set in the same direction, and the both ends or either end of the width direction of bottom plate (1) is provided with comb structure (11), blade (2) is placed on bottom plate (1), and the cutting edge of blade (2) is positionally corresponding with comb structure (11), cover plate (3) is covered on blade (2), and cover plate (3) is detachably connected with bottom plate (1) and compresses tightly blade (2);Hand-held plate (5) is parallel with cover plate (3), and one end of the length direction of hand-held plate (5) is connected with cover plate (3).

9. The skin-preparation knife for perianal skin preparation according to any one of claims 1 to 5, characterized by: The utility model relates to a kind of soap cutting device, including bottom plate (1), blade (2), cover plate (3) and hand-held plate (5);Bottom plate (1), blade (2) and cover plate (3) are all rectangular and set in the same direction, and the both ends or either end of the width direction of bottom plate (1) is provided with comb structure (11), blade (2) is placed on bottom plate (1), and the cutting edge of blade (2) is positionally corresponding with comb structure (11), cover plate (3) is covered on blade (2), and cover plate (3) is detachably connected with bottom plate (1) and compresses tightly blade (2);Hand-held plate (5) is parallel with cover plate (3), and one end of the length direction of hand-held plate (5) is connected with cover plate (3). The angle between the center line of the length direction of hand-held plate (5) and the center line of the length direction of cover plate (3) is a, and 30°≤a≤45°.