Skin preparation knife

Abstract

The utility model relates to the technical field of skin preparation knives, in particular to a skin preparation knife which comprises a handle and a skin preparation knife body, the skin preparation knife body comprises a base, the base is fixedly connected to the top end of the handle, a cover plate is arranged above the base, a blade is arranged between the cover plate and the base, a liquid homogenizing cavity is formed in the cover plate, and the liquid homogenizing cavity is communicated with the handle. A foam liquid cavity and an air bag are formed in the handle and communicate with each other, when the air bag is extruded, foam liquid in the foam liquid cavity can be guided into the liquid homogenizing cavity through a liquid guide pipe, a plurality of through holes communicating with the liquid homogenizing cavity are formed in the surface wall of the cover plate, and the foam liquid is further uniformly permeated on the cotton cushion through the through holes. In this way, during skin preparation operation, the foam liquid on the surface wall of the cotton cushion makes contact with the skin of a patient and the blade, the skin is lubricated, hair is softened, comfort is improved, introduction of the foam liquid is controlled by pressing the air bag, control is easy and convenient, and more cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of skin preparation knives, in particular to a skin preparation knife. Background Art

[0002] Skin preparation is to remove the hair from the corresponding parts of the patient and prepare for body surface cleaning before surgery. In addition to cleaning the body hair, the skin also needs to be cleaned and treated to reduce the number of bacteria on the skin and reduce the chance of infection after surgery. For the treatment of body hair, a skin preparation knife is needed, which can overcome the problem that ordinary knives are easy to cut the skin due to the physiological curvature of various parts of the body and the sharp corners of the blade;

[0003] However, the skin preparation knife in the prior art is less comfortable when in use, and is easy to damage the skin, bringing risks to the operation. In order to ensure the cleanliness of the blade and improve the comfort, the blade is generally cleaned by using medical cotton dipped in alcohol. This method can be better disinfected, but the medical cotton is easy to absorb too much alcohol when absorbing alcohol. After wiping is completed, as the medical cotton is discarded, the alcohol on the medical cotton will be discarded, which will cause a waste of alcohol resources. In addition, wiping the blade with medical cotton is also easy to scratch the fingers of medical staff, causing harm to medical staff. Utility Model Content

[0004] The utility model aims to provide a skin preparation knife, which has the characteristics of convenient disinfection, high comfort, and controlling the introduction of foam liquid by pressing an air bag, which is simple and convenient to control and more cost-saving.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a skin preparation knife, comprising a handle and a skin preparation knife body, the skin preparation knife body comprising a base, the base is fixedly connected to the top end of the handle, a cover plate is arranged above the base, a blade is arranged between the cover plate and the base, a liquid distribution chamber is provided inside the cover plate, a foam liquid chamber and an air bag are provided inside the handle, the foam liquid chamber and the air bag are connected, the top end of the foam liquid chamber is connected to a liquid guide tube, the other end of the liquid guide tube is connected to the inside of the liquid distribution chamber, a plurality of through holes connected to the liquid distribution chamber are provided on the surface wall of the cover plate, a cotton pad is fixedly connected to the surface wall of the cover plate, a first one-way valve is provided at the end of the air bag, and a second one-way valve is provided at the connection between the foam liquid chamber and the air bag.

[0006] In order to facilitate the addition of foam liquid, as a preferred skin preparation knife of the utility model, the outer wall of the foam liquid chamber is connected to a liquid injection tube extending to the outside of the handle, and the other end of the liquid injection tube is threadedly connected to a screw cap.

[0007] In order to facilitate the installation of a fixed blade, as a preferred skin preparation knife of the utility model, the upper end surface of the base is fixedly connected with a plurality of positioning rods, the bottom of the cover plate is provided with a plurality of positioning grooves matching the positioning rods, the outer walls of the plurality of positioning rods are fixedly connected with limiting blocks, the blade is sleeved on the outer walls of the plurality of positioning rods and the lower end surface abuts against the plurality of limiting blocks.

[0008] In order to fix the cover plate, as a preferred skin preparation knife of the utility model, the left and right sides of the cover plate are fixedly connected with hooks, and the left and right sides of the base are fixedly connected with elastic ropes.

[0009] In order to facilitate the passing of hair, as a preferred skin preparation knife of the utility model, the front and rear sides of the base are fixedly connected with a plurality of evenly distributed comb teeth.

[0010] In order to extend the outer wall of the airbag to the outside of the handle, as a preferred skin preparation knife of the utility model, the outer wall of the handle is provided with an elliptical hole matching the airbag.

[0011] In order to facilitate the hanging of the equipment, as a preferred skin preparation knife of the utility model, the end of the handle away from the base is fixedly connected with a hook.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The foam liquid cavity is connected to the air bag. When the air bag is squeezed, the foam liquid in the foam liquid cavity can be introduced into the liquid distribution cavity through the liquid guide tube. A plurality of through holes connected to the liquid distribution cavity are provided on the surface wall of the cover plate. The foam liquid further penetrates evenly onto the cotton pad through the plurality of through holes. In this way, when performing skin preparation operation, the foam liquid on the surface wall of the cotton pad contacts the patient's skin and the blade, lubricates the skin and softens the beard, and improves comfort. The introduction of the foam liquid is controlled by pressing the air bag. The control is simple and convenient, and cost-saving. At the same time, there is no need to manually wipe the blade edge, and the safety is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the overall external main view structure diagram of the utility model;

[0015] Figure 2 This is the overall external left view of the utility model;

[0016] Figure 3 It is a partial cross-sectional structural diagram of the utility model.

[0017] In the figure: 1. handle; 2. skin preparation knife body; 3. base; 4. positioning rod; 5. cover plate; 6. blade; 7. foam liquid chamber; 8. air bag; 9. liquid guide tube; 10. liquid equalization chamber; 11. through hole; 12. first one-way valve; 13. second one-way valve; 14. liquid injection tube; 15. screw cap; 16. positioning groove; 17. limit block; 18. hook; 19. elastic rope; 20. comb teeth; 21. elliptical hole; 22. cotton pad; 23. hook. DETAILED DESCRIPTION

[0018] See also Figures 1 to 3 A skin preparation knife comprises a handle 1 and a skin preparation knife body 2, the skin preparation knife body 2 comprises a base 3, the base 3 is fixedly connected to the top of the handle 1, a cover plate 5 is arranged above the base 3, a blade 6 is arranged between the cover plate 5 and the base 3, a liquid distribution chamber 10 is opened inside the cover plate 5, a foam liquid chamber 7 and an air bag 8 are opened inside the handle 1, the foam liquid chamber 7 and the air bag 8 are connected, the top of the foam liquid chamber 7 is connected with a liquid guide tube 9, the other end of the liquid guide tube 9 is connected with the inside of the liquid distribution chamber 10, a plurality of through holes 11 connected with the liquid distribution chamber 10 are opened on the surface wall of the cover plate 5, a cotton pad 22 is fixedly connected to the surface wall of the cover plate 5, a first one-way valve 12 is arranged at the end of the air bag 8, and a second one-way valve 13 is arranged at the connection between the foam liquid chamber 7 and the air bag 8.

[0019] In this embodiment, the foam liquid chamber 7 is connected to the air bag 8. When the air bag 8 is squeezed, the foam liquid in the foam liquid chamber 7 can be introduced into the liquid distribution chamber 10 through the liquid guide tube 9. The volume of the air bag 8 is larger than the volume of the foam liquid chamber 7, ensuring that the foam liquid can be smoothly guided out. The surface wall of the cover plate 5 is provided with a plurality of through holes 11 connected to the liquid distribution chamber 10. Further, the foam liquid is evenly infiltrated on the cotton pad 22 through the plurality of through holes 11. The cotton pad 22 is a microporous structure with good air permeability and water permeability, which is convenient for absorbing the foam liquid. In this way, skin preparation is performed During operation, the foam liquid on the surface of the cotton pad 22 contacts the patient's skin and the blade 6, lubricating the skin and softening the beard hair to improve comfort. The introduction of the foam liquid is controlled by pressing the airbag 8, which is simple and convenient to control and more cost-effective. At the same time, there is no need to manually wipe the blade edge, which is highly safe. A first one-way valve 12 is provided at the end of the airbag 8, so that air can only enter from the end of the airbag 8 but cannot be discharged, and the second one-way valve 13 allows air to only enter the foam liquid cavity 7, while the foam liquid does not enter the inside of the airbag 8.

[0020] As a technical optimization solution of the utility model, the outer wall of the foam liquid chamber 7 is connected to a liquid injection tube 14 extending to the outside of the handle 1 , and the other end of the liquid injection tube 14 is threadedly connected to a screw cap 15 .

[0021] In this embodiment: the injection tube 14 is used to conveniently add foam liquid into the foam liquid cavity 7, and the screw cap 15 is used to conveniently close the injection tube 14. The main components of the foam liquid are fatty acids, alkali metal hydroxides, surfactants and thickeners. Fatty acids are used to increase the amount of foam, alkali metal hydroxides are convenient for forming soap bases, and surfactants and thickeners increase the stability of the foam liquid.

[0022] As a technical optimization solution of the utility model, the upper end surface of the base 3 is fixedly connected to a plurality of positioning rods 4, the bottom of the cover plate 5 is provided with a plurality of positioning grooves 16 matching the positioning rods 4, the outer walls of the plurality of positioning rods 4 are fixedly connected to limiting blocks 17, the blade 6 is sleeved on the outer walls of the plurality of positioning rods 4 and the lower end surface is abutted against the plurality of limiting blocks 17.

[0023] In this embodiment: when installing the blade 6, the blade 6 is inserted into the outer walls of the multiple positioning rods 4. After the blade 6 is installed, the lower end surface abuts against the multiple limit blocks 17, and then the cover plate 5 is inserted into the outer walls of the multiple positioning rods 4 through the multiple positioning grooves 16 to achieve the installation of the cover plate 5, so that the blade 6 is installed between the cover plate 5 and the multiple limit blocks 17, and the installation is stable and firm.

[0024] As a technical optimization solution of the utility model, hooks 18 are fixedly connected to the left and right sides of the cover plate 5 , and elastic ropes 19 are fixedly connected to the left and right sides of the base 3 .

[0025] In this embodiment, after the cover plate 5 is installed, the elastic ropes 19 on both sides are hung on the outer walls of the hooks 18 on both sides respectively, so as to pull and fix the cover plate 5.

[0026] As a technical optimization solution of the present invention, a plurality of evenly distributed comb teeth 20 are fixedly connected to both the front and rear sides of the base 3 .

[0027] In this embodiment, the comb teeth 20 are provided to facilitate the passing of hair when using the skin preparation knife.

[0028] As a technical optimization solution of the present utility model, an elliptical hole 21 matching the airbag 8 is opened on the outer wall of the handle 1 .

[0029] In this embodiment, an elliptical hole 21 matching the airbag 8 is provided on the outer wall of the handle 1 , so as to facilitate pressing the airbag 8 when holding the handle 1 .

[0030] As a technical optimization solution of the present invention, one end of the handle 1 away from the base 3 is fixedly connected with a hook 23 .

[0031] In this embodiment, a hook 23 is fixedly connected to one end of the handle 1 away from the base 3, so that a dermatome can be hung on the hook 23 for easy access.

[0032] Working principle: when installing the blade 6, the blade 6 is inserted into the outer wall of the plurality of positioning rods 4. After the blade 6 is installed, the lower end surface is abutted against the plurality of limit blocks 17. Then, the cover plate 5 is inserted into the outer wall of the plurality of positioning rods 4 through the plurality of positioning grooves 16 to realize the installation of the cover plate 5, so that the blade 6 is installed between the cover plate 5 and the plurality of limit blocks 17. The installation is stable and firm. The foam liquid cavity 7 is connected with the air bag 8. When the air bag 8 is squeezed, the foam liquid in the foam liquid cavity 7 can be introduced into the liquid equalization cavity 10 through the liquid guide tube 9. The surface wall of the cover plate 5 is provided with a plurality of through holes 11 connected with the liquid equalization cavity 10. Further, the foam liquid is evenly infiltrated into the cotton pad 22 through the plurality of through holes 11. In this way, when performing the skin preparation operation, the foam liquid on the surface wall of the cotton pad 22 contacts the patient's skin and the blade 6, lubricates the skin and softens the beard, and improves the comfort. The introduction of the foam liquid is controlled by pressing the air bag 8, and the control is simple and convenient.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A skin preparation knife, comprising a handle (1) and a skin preparation knife body (2), characterized in that: The skin preparation knife body (2) comprises a base (3), wherein the base (3) is fixedly connected to the top end of the handle (1), a cover plate (5) is arranged above the base (3), a blade (6) is arranged between the cover plate (5) and the base (3), a liquid distribution chamber (10) is provided inside the cover plate (5), a foam liquid chamber (7) and an air bag (8) are provided inside the handle (1), the foam liquid chamber (7) and the air bag (8) are connected, the top end of the foam liquid chamber (7) is connected to a liquid guide tube (9), the other end of the liquid guide tube (9) is connected to the inside of the liquid distribution chamber (10), a plurality of through holes (11) connected to the liquid distribution chamber (10) are arranged on the surface wall of the cover plate (5), a cotton pad (22) is fixedly connected to the surface wall of the cover plate (5), a first one-way valve (12) is provided at the end of the air bag (8), and a second one-way valve (13) is provided at the connection between the foam liquid chamber (7) and the air bag (8).

2. A skin preparation knife according to claim 1, characterized in that: The outer wall of the foam liquid chamber (7) is connected to a liquid injection tube (14) extending to the outside of the handle (1), and the other end of the liquid injection tube (14) is threadedly connected to a screw cap (15).

3. The skin preparation knife according to claim 1, characterized in that: The upper end surface of the base (3) is fixedly connected to a plurality of positioning rods (4); the bottom of the cover plate (5) is provided with a plurality of positioning grooves (16) matching the positioning rods (4); the outer walls of the plurality of positioning rods (4) are fixedly connected to limiting blocks (17); the blade (6) is sleeved on the outer walls of the plurality of positioning rods (4) and the lower end surface is in contact with the plurality of limiting blocks (17).

4. The skin preparation knife according to claim 1, characterized in that: The left and right sides of the cover plate (5) are both fixedly connected with hooks (18), and the left and right sides of the base (3) are both fixedly connected with elastic ropes (19).

5. The skin preparation knife according to claim 1, characterized in that: A plurality of evenly distributed comb teeth (20) are fixedly connected to both the front and rear sides of the base (3).

6. The skin preparation knife according to claim 1, characterized in that: The outer wall of the handle (1) is provided with an elliptical hole (21) matching the air bag (8).

7. The skin preparation knife according to claim 1, characterized in that: One end of the handle (1) away from the base (3) is fixedly connected with a hook (23).

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