Scratch-proof newborn skin-preparing knife
By incorporating a brush handle and toothed groove design into the newborn shaving knife, the problem of difficult-to-clean hair adhesion is solved, achieving safe and efficient hair removal and avoiding finger scratches and bacterial infections.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE SIXTH AFFILIATED HOSPITAL OF SUN YAT SEN UNIV
- Filing Date
- 2025-08-07
- Publication Date
- 2026-06-26
AI Technical Summary
During use, existing neonatal skin-shaving razors are prone to hair getting stuck between the blade and the blade holder, which is difficult to clean and reduces their sharpness. Furthermore, medical staff may scratch their fingers when wiping the razor, leading to bacterial infections.
A newborn skin-preparing knife designed to prevent scratches uses a brush handle that rotates within a hair-removing groove to clean hair. Combined with a toothed groove design, the hair is discharged from outside the groove. The blade is secured by a limiting block and a spring to prevent wiping with fingers.
It effectively removes hair, prevents blades from scratching fingers, reduces the risk of bacterial infection, and improves safety and convenience of use.
Smart Images
Figure CN224407679U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical tool technology, specifically a newborn skin preparation knife that prevents scratches. Background Technology
[0002] Newborns' skin is only one-third the thickness of an adult's, and their immune system is not fully developed. Newborns' hair or pubic hair needs to be removed to prevent bacterial infection. Therefore, a newborn shaving razor is needed to remove hair from the surface of a newborn's skin.
[0003] In the process of realizing this utility model, the inventors discovered that the prior art has at least the following problems:
[0004] When using existing neonatal shaving razors, as hair is continuously scraped off by the blade, the hair adheres to the space between the blade and the blade holder and is difficult to clean. Since the adhered hair affects the sharpness of the blade, medical staff need to clean the hair adhering to the blade and blade holder. However, currently, cleaning the hair by wiping with fingers can easily scratch the fingers and cause bacterial infection.
[0005] Therefore, the aforementioned technical problems need to be solved. Utility Model Content
[0006] To address the shortcomings of existing technologies, this utility model provides a scratch-resistant newborn shaving knife, which solves the problem that hair is difficult to remove when it adheres to the inside of the blade body and hair removal groove during newborn hair removal, and that the blade body may scratch the fingers of medical staff when they wipe with their fingers, causing bacterial infection of the finger wounds.
[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0008] A newborn skin-prepping knife designed to prevent scratches includes a handle body, a blade mounting bracket body fixed to the front end of the handle body, and a blade body and a fixing plate movably mounted to the front end of the blade mounting bracket body. The top and bottom of the blade mounting bracket body are provided with hair-removing grooves, and the rear ends of the hair-removing grooves are provided with toothed grooves. A brush rod is rotatably mounted inside the hair-removing groove, and a rotating block located on one side of the blade mounting bracket body is fixedly mounted at one end of the brush rod.
[0009] Preferably, the blade body has a first through groove on both sides, and the blade mounting bracket body has a second through groove on both sides.
[0010] Preferably, the front end of the fixing plate is an arc surface, and the top and bottom of the fixing plate are provided with first grooves.
[0011] Preferably, a fixing rod is fixedly installed on both sides of the rear end of the fixing plate, passing through the first through groove and the second through groove. A rotating rod is movably installed inside the fixing rod. A limiting block located at the rear end of the blade mounting bracket body is fixedly installed at the rear end of the rotating rod. A spring located inside the fixing rod is sleeved on the outer side of the rotating rod.
[0012] Preferably, a protective sleeve is fitted onto the outer side of the blade mounting bracket body, and a second groove is provided on the through side of the rear end of the protective sleeve.
[0013] Preferably, the bottom of the grip body is provided with an arc-shaped finger groove, and the number of the arc-shaped finger grooves is four.
[0014] Compared with the prior art, this utility model provides a scratch-resistant neonatal shaving knife with the following beneficial effects: When a large amount of newborn hair is shaved off by the hair removal groove, the hair falls inside the groove and adheres to the inner wall of the blade body and the groove. Medical staff can rotate the brush handle by pinching the rotating block, so that the brush handle rotates inside the groove to clean the hair on the surface of the blade body and the groove, thereby expelling the hair from the groove to the outside. This makes it convenient for medical staff to clean the hair and avoids the situation where hair adheres to the inside of the blade body and the groove when shaving newborns and is difficult to clean. It also avoids the situation where the blade body may scratch the staff's fingers when the staff wipes with their fingers, causing bacterial infection of the finger wound. Attached Figure Description
[0015] Figure 1 This is a front view structural diagram of the present utility model;
[0016] Figure 2 This is a schematic diagram of the rear view structure of this utility model;
[0017] Figure 3 This is a top view of the main body of the blade mounting bracket of this utility model.
[0018] Figure 4 This is a frontal view of the disassembled structure of the blade mounting bracket main body of this utility model;
[0019] Figure 5 This is a side view sectional structural diagram of the protective sleeve of this utility model;
[0020] Figure 6 For the present utility model Figure 5 A magnified schematic diagram of the structure at point A in the middle.
[0021] In the diagram: 1. Handle body; 101. Blade mounting bracket body; 102. Hair removal groove; 103. Brush rod; 104. Rotating block; 105. Blade body; 106. Fixing plate; 107. First through groove; 108. Second through groove; 109. First groove; 2. Fixing rod; 201. Rotating rod; 202. Limiting block; 203. Spring; 3. Protective sleeve; 301. Second groove; 4. Arc-shaped finger groove. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] As described in the background section, there are shortcomings in the existing technology. In order to solve the above-mentioned technical problems, this application proposes a scratch-resistant newborn skin preparation knife.
[0024] Please see Figures 1-6 A newborn skin-prepping knife designed to prevent scratches includes a handle body, a blade mounting bracket body fixed to the front end of the handle body, and a blade body and a fixing plate movably mounted to the front end of the blade mounting bracket body. The top and bottom of the blade mounting bracket body are provided with hair-removing grooves, and the rear ends of the hair-removing grooves are provided with toothed grooves. A brush rod is rotatably mounted inside the hair-removing groove, and a rotating block located on one side of the blade mounting bracket body is fixedly mounted at one end of the brush rod.
[0025] With the above-described structural design, when using this anti-scratch neonatal shaving razor to shave newborns, if the shaved hair adheres to the inside of the hair removal groove and the inner surface of the blade body, in order to prevent the hair adhesion from affecting the sharpness of the blade body, medical staff can pinch the rotating block and rotate the brush handle to clean the hair adhering to the hair removal groove and the surface of the blade body. This allows the hair to be discharged to the outside of the hair removal groove. Furthermore, because the rear end of the hair removal groove is provided with a toothed groove, when the blade body removes hair from the surface of the newborn's skin, the hair is first discharged to the outside through the toothed groove, thereby reducing the amount of hair adhering to the inside of the hair removal groove. This facilitates the cleaning of the hair inside the hair removal groove and avoids the situation where hair adheres to the inside of the blade body and the hair removal groove when shaving newborns, making it difficult to clean. This also prevents the blade body from scratching the staff's fingers when they wipe with their fingers, causing bacterial infection of the finger wounds.
[0026] Furthermore, the blade body has a first through slot on both sides, and the blade mounting bracket body has a second through slot on both sides. Fixing rods passing through the first and second through slots are fixedly installed on both sides of the rear end of the fixing plate. A rotating rod is movably installed inside the fixing rod, and a limiting block located at the rear end of the rotating rod is fixedly installed at the rear end of the blade mounting bracket body. A spring located inside the fixing rod is sleeved on the outer side of the rotating rod. First, the limiting block is rotated to a vertical position. Then, the fixing rod passes through the first and second through slots. Next, the limiting block is rotated to a horizontal position. Under the elastic force of the spring, the limiting block fits tightly against the rear end of the blade mounting bracket body. Due to the large elastic coefficient of the spring, the limiting block effectively limits and fixes the fixing plate, thus fixing the blade body between the fixing plate and the blade mounting bracket body. This replaces the traditional screw and nut fixing method, making installation and disassembly more convenient for medical personnel.
[0027] Furthermore, the front end of the fixing plate is an arc surface, and the top and bottom of the fixing plate are provided with first grooves. Because the front end of the fixing plate is an arc surface, when medical personnel use the device to shave, the arc surface of the fixing plate comes into contact with the newborn's skin. The blade body removes hair from the skin surface through the portion extending into the inner side of the first groove. The smooth arc surface of the fixing plate makes it easier for medical personnel to adjust the angle of the blade body, avoiding scratching the newborn's skin and causing bacterial infection.
[0028] Furthermore, a protective sleeve is fitted onto the outer side of the blade mounting bracket body, and a second groove is provided on the rear end of the protective sleeve. By fitting the protective sleeve onto the outer side of the blade mounting bracket body and the fixing plate, the protective sleeve protects the blade mounting bracket body, the blade body, and the fixing plate. At this time, a limiting block slides into the second groove, allowing the protective sleeve to completely cover the outer side of the blade mounting bracket body, preventing the device from falling to the ground and causing damage.
[0029] Furthermore, the bottom of the handle body is provided with an arc-shaped finger groove, and the number of the arc-shaped finger groove is four. When medical staff use the neonatal shaving razor, they can put four fingers into the arc-shaped finger groove, which is ergonomic and makes it more convenient for medical staff to hold the handle body to perform shaving operations.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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. A scratch-resistant neonatal shaving knife, comprising a handle body (1), a blade mounting bracket body (101) fixed to the front end of the handle body (1), and a blade body (105) and a fixing plate (106) movably mounted to the front end of the blade mounting bracket body (101), characterized in that: The blade mounting bracket body (101) has a bristle removal groove (102) at the top and bottom. The rear ends of the bristle removal groove (102) are provided with toothed grooves. A brush rod (103) is rotatably installed inside the bristle removal groove (102). A rotating block (104) located on one side of the blade mounting bracket body (101) is fixedly installed at one end of the brush rod (103).
2. The newborn skin preparation knife for preventing scratches according to claim 1, characterized in that: The blade body (105) has a first through groove (107) on both sides, and the blade mounting bracket body (101) has a second through groove (108) on both sides.
3. The newborn skin preparation knife for preventing scratches according to claim 1, characterized in that: The front end of the fixing plate (106) is an arc surface, and the top and bottom of the fixing plate (106) are provided with a first groove (109).
4. A newborn skin preparation knife to prevent scratches according to claim 2, characterized in that: Fixed rods (2) are fixedly installed on both sides of the rear end of the fixed plate (106) through the first through groove (107) and the second through groove (108). A rotating rod (201) is movably installed inside the fixed rod (2). A limiting block (202) located at the rear end of the blade mounting frame body (101) is fixedly installed at the rear end of the rotating rod (201). A spring (203) located inside the fixed rod (2) is sleeved on the outer side of the rotating rod (201).
5. A newborn skin preparation knife to prevent scratches according to claim 1, characterized in that: A protective sleeve (3) is fitted onto the outer side of the blade mounting bracket body (101), and a second groove (301) is provided on the rear end through side of the protective sleeve (3).
6. A newborn skin preparation knife to prevent scratches according to claim 1, characterized in that: The bottom of the grip body (1) is provided with an arc-shaped finger groove (4), and the number of the arc-shaped finger groove (4) is four sets.