Multifunctional medical skin preparation knife
By designing a mesh cover on the medical skin preparation knife to prevent skin abrasions, and integrating a lubrication device and hair collection system, the safety and cumbersome operation problems of existing skin preparation knives have been solved, achieving improvements in both safety and convenience.
Patent Information
- Application Number
- CN202520291901.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-02-24
AI Technical Summary
Existing medical skin preparation knives have a simple structure and limited function. They may cut the skin and require manual application of lubricant, making operation cumbersome.
A multifunctional medical skin preparation knife was designed. It uses a mesh cover to prevent the blade from directly contacting the skin, integrates a lubrication device to automatically provide lubricant, and uses an electric motor and fan to collect hair, generating an adsorption force using Bernoulli's principle.
It improves the safety of skin preparation, reduces the risk of skin abrasions, simplifies the operation process, and automatically provides lubricant and collects hair.
Smart Images

Figure CN223802629U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical equipment technical field, especially a kind of multifunctional medical skin-preparing knife. BACKGROUND
[0002] Skin-preparing knife is the tool needed when patient is prepared for skin before operation, and skin-preparing is to remove the hair of the part of patient needing operation before operation, and the removed hair needs to be cleaned, which is to help doctors to obtain better vision during operation, and to reduce the probability of infection, skin-preparing knife is similar to shaving razor in appearance, with upper and lower decks, a blade in the middle of deck, and a handle connected with deck, to facilitate medical staff to hold and prepare skin, the existing medical skin-preparing knife has simple structure and single function, and the blade on skin-preparing knife can scratch skin during use, with certain safety hazard, and it is usually necessary to manually apply lubricating liquid to lubricate skin during skin-preparing operation, with more cumbersome operation and poor practicability, therefore, the multifunctional medical skin-preparing knife is proposed to solve the above-mentioned problems. SUMMARY
[0003] In view of the above problems, the utility model provides a kind of multifunctional medical skin-preparing knife, with good practicability, can avoid that blade directly contacts with skin surface, to avoid scratching skin, improve the safety when preparing skin, without manually applying lubricating liquid, reduce the cumbersome degree of doctor operation, also have the function of collecting hair.
[0004] The technical scheme of the utility model is:
[0005] A kind of multifunctional medical skin-preparing knife, including handle, the output end of the handle is fixedly connected with hair collection cover shell, the inner surface of the hair collection cover shell is fixedly connected with fixed cover shell, the inner surface of the fixed cover shell is fixedly connected with driving motor, the output end of the driving motor is fixedly connected with rotating shaft, the output end of the rotating shaft is fixedly connected with connecting column, the outer surface of the connecting column is fixedly connected with blade, the number of the blade is several, the inside of the fixed cover shell is fixedly connected with lubricating device, the lubricating device is arranged above connecting column, the bottom of the fixed cover shell is provided with mesh cover.
[0006] In further technical scheme, the outer surface of the handle is fixedly connected with anti-skid sleeve and control key, the end, away from rotating shaft, of the connecting column is rotatably connected to the inner wall of fixed cover shell.
[0007] The anti-skid sleeve can increase the friction between hand and handle during use, to avoid hand slipping during skin-preparing operation.
[0008] In a further technical solution, the lower surface of the fixed sleeve shell is provided with a clamping groove, the upper surface of the mesh cover is fixedly connected with a clamping block, and the mesh cover is clamped with the fixed sleeve shell through the clamping block.
[0009] Through the clamping block, the detachable mounting mode is used, and the mesh cover is convenient to disassemble for cleaning after use.
[0010] In a further technical solution, the upper surface of the lint collecting sleeve shell is fixedly connected with an electric motor, the output end of the electric motor penetrates the lint collecting sleeve shell and extends to the inner cavity, and the output end of the electric motor is fixedly connected with a fan.
[0011] Through the fan, the electric motor is started to make the fan run, so that air flow is generated in the inside of the lint collecting sleeve shell, according to Bernoulli's principle, the pressure is small in the place with large flow rate, so that the air pressure in the lint collecting sleeve shell is smaller than the outside, and then the adsorption force is generated.
[0012] In a further technical solution, the lubricating device comprises a sealing cylinder, the outer surface of the sealing cylinder is fixedly connected in the inside of the fixed sleeve shell, the end of the sealing cylinder is fixedly connected with a liquid inlet pipe, the outer surface of the liquid inlet pipe penetrates the fixed sleeve shell and extends to the outside, and the output end of the liquid inlet pipe is threadedly connected with a cover.
[0013] Through the cover, the cover is first screwed off, the lubricating liquid is injected into the inside of the sealing cylinder through the liquid inlet pipe, and then the cover is tightened, so as to ensure the sealing property of the sealing cylinder.
[0014] In a further technical solution, the bottom of the sealing cylinder is fixedly connected with a liquid outlet pipe, the liquid outlet pipe is linearly arranged along the outer surface of the sealing cylinder, and the outer surface of the liquid outlet pipe is fixedly connected with a solenoid valve.
[0015] Through the solenoid valve, the solenoid valve is energized to be opened, and the lubricating oil in the sealing cylinder flows out to the blade along the liquid outlet pipe, so as to conveniently control the opening and closing of the liquid outlet pipe.
[0016] The beneficial effects of the utility model are:
[0017] 1. Through the mesh cover, the blade can be prevented from directly contacting the skin surface, so as to avoid scratching the skin, improve the safety during skin preparation, and the mesh cover is detachably mounted, so as to be convenient to disassemble for cleaning after use.
[0018] 2. Through the lubricating device, the liquid outlet pipe can continuously provide lubricating liquid for the blade during scraping, and the lubricating liquid flows down to the skin surface of the operation site along the blade, without manual smearing, and the degree of complexity of the doctor during operation is reduced.
[0019] 3. By coordinating the electric motor, fan, and hair collection casing, and utilizing Bernoulli's principle, an adsorption force is generated inside the hair collection casing to draw hair remaining on the skin surface into the inner cavity of the casing, thereby achieving the purpose of hair collection. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure as described in the embodiment of this utility model;
[0021] Figure 2 This is a schematic cross-sectional view of the overall structure as described in the embodiment of this utility model;
[0022] Figure 3 This is a partial cross-sectional structural schematic diagram of an embodiment of the present utility model;
[0023] Figure 4 This is a schematic diagram of the lubrication device described in an embodiment of the present invention.
[0024] Explanation of reference numerals in the attached figures:
[0025] 1. Handle; 2. Hair collection sleeve; 3. Fixing sleeve; 4. Drive motor; 5. Rotating shaft; 6. Connecting column; 7. Blade; 8. Slot; 9. Mesh cover; 10. Locking block; 11. Lubrication device; 111. Sealing cylinder; 112. Inlet pipe; 113. Cap; 114. Outlet pipe; 115. Solenoid valve; 12. Electric motor; 13. Fan; 14. Anti-slip sleeve; 15. Control key. Detailed Implementation
[0026] The embodiments of this utility model will be further described below with reference to the accompanying drawings.
[0027] Example 1:
[0028] like Figures 1-4 As shown, a multifunctional medical skin preparation knife includes a handle 1. A hair collection shell 2 is fixedly connected to the output end of the handle 1. A fixing shell 3 is fixedly connected to the inner surface of the hair collection shell 2. A drive motor 4 is fixedly connected to the inner surface of the fixing shell 3. A rotating shaft 5 is fixedly connected to the output end of the drive motor 4. A connecting post 6 is fixedly connected to the output end of the rotating shaft 5. A blade 7 is fixedly connected to the outer surface of the connecting post 6. The number of blades 7 is several. A lubrication device 11 is fixedly connected inside the fixing shell 3. The lubrication device 11 is located directly above the connecting post 6. A mesh cover 9 is provided at the bottom of the fixing shell 3.
[0029] In a further technical solution, the outer surface of the handle 1 is fixedly connected with an anti-skid sleeve 14 and a control key 15, the end of the connecting column 6 away from the rotating shaft 5 is rotatably connected to the inner wall of the fixed sleeve shell 3, the lower surface of the fixed sleeve shell 3 is provided with a clamping groove 8, the upper surface of the mesh cover 9 is fixedly connected with a clamping block 10, the mesh cover 9 is clamped with the fixed sleeve shell 3 through the clamping block 10, the upper surface of the hair collecting sleeve shell 2 is fixedly connected with an electric motor 12, the output end of the electric motor 12 penetrates through the hair collecting sleeve shell 2 and extends into the inner cavity, the output end of the electric motor 12 is fixedly connected with a fan 13, the lubricating device 11 comprises a sealing cylinder 111, the outer surface of the sealing cylinder 111 is fixedly connected to the inside of the fixed sleeve shell 3, the end of the sealing cylinder 111 is fixedly connected with a liquid inlet pipe 112, the outer surface of the liquid inlet pipe 112 penetrates through the fixed sleeve shell 3 and extends to the outside, the output end of the liquid inlet pipe 112 is threadedly connected with a cover 113, the bottom of the sealing cylinder 111 is fixedly connected with a liquid outlet pipe 114, the outer surface of the liquid outlet pipe 114 is linearly arranged along the outer surface of the sealing cylinder 111, and the outer surface of the liquid outlet pipe 114 is fixedly connected with an electromagnetic valve 115.
[0030] The working principle of the above technical solution is as follows:
[0031] In use, first, the cover 113 is unscrewed, lubricating liquid is injected into the inside of the sealing cylinder 111 through the liquid inlet pipe 112, and then the cover 113 is tightened. When the skin preparation operation starts, the electromagnetic valve 115 is energized to be opened, the lubricating oil in the sealing cylinder 111 flows out to the blade 7 along the liquid outlet pipe 114. The handle 1 is held, the mesh cover 9 is directed towards the skin surface, the driving motor 4 is started, the rotating shaft 5 drives the connecting column 6 to rotate, and then the blade 7 rotates at high speed. The hair passes through the through hole on the mesh cover 9 and extends into the inner cavity of the fixed sleeve shell 3. The blade 7 rotating at high speed cuts the hair, thereby realizing the function of shaving and scraping. When the hair is scraped, the liquid outlet pipe 114 continuously provides lubricating liquid for the blade 7 and flows down to the skin surface of the operation site along the blade 7, without the need for manual application, thereby reducing the complexity of the operation of the doctor. During the scraping process, part of the cut hair enters the mesh cover 9 and the fixed sleeve shell 3 along with the blade 7, and the other part of the cut hair remains on the skin surface. The electric motor 12 is started to drive the fan 13 to operate, so that an airflow is generated in the inside of the hair collecting sleeve shell 2. According to Bernoulli's principle, the place with a large flow rate has a small pressure, so that the air pressure in the inside of the hair collecting sleeve shell 2 is smaller than that outside, thereby generating a suction force to suck the hair remaining on the skin surface into the inner cavity of the hair collecting sleeve shell 2, thereby achieving the purpose of collecting the hair. Through the mesh cover 9, the blade 7 can avoid direct contact with the skin surface, thereby avoiding scratching the skin and improving the safety during skin preparation. Moreover, the mesh cover 9 is detachably installed, which facilitates the disassembly and cleaning after use.
[0032] The above-described embodiments only express the specific implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application.
Claims
1. A multifunctional medical skin-preparing knife comprising a handle, characterized in that, The output end of the handle is fixedly connected with a lint collecting sleeve shell, the inner surface of the lint collecting sleeve shell is fixedly connected with a fixed sleeve shell, the inner surface of the fixed sleeve shell is fixedly connected with a driving motor, the output end of the driving motor is fixedly connected with a rotating shaft, the output end of the rotating shaft is fixedly connected with a connecting column, the outer surface of the connecting column is fixedly connected with a blade, the number of the blade is several, the inside of the fixed sleeve shell is fixedly connected with a lubricating device, the lubricating device is arranged directly above the connecting column, and the bottom of the fixed sleeve shell is provided with a mesh cover.
2. The multifunctional medical skin-preparing knife according to claim 1, characterized in that: The outer surface of the handle is fixedly connected with an anti-skid sleeve and a control key, and one end of the connecting column away from the rotating shaft is rotationally connected to the inner wall of the fixed sleeve shell.
3. The multifunctional medical skin-preparing knife according to claim 1, characterized in that: The lower surface of the fixed sleeve shell is provided with a clamping groove, the upper surface of the mesh cover is fixedly connected with a clamping block, and the mesh cover is clamped with the fixed sleeve shell through the clamping block.
4. The multifunctional medical skin-preparing knife according to claim 1, characterized in that: The upper surface of the lint collecting sleeve shell is fixedly connected with an electric motor, the output end of the electric motor penetrates through the lint collecting sleeve shell and extends to the inner cavity, and the output end of the electric motor is fixedly connected with a fan.
5. The multifunctional medical skin-preparing knife according to claim 1, characterized in that: The lubricating device comprises a sealing cylinder, the outer surface of the sealing cylinder is fixedly connected in the fixed sleeve shell, the end of the sealing cylinder is fixedly connected with a liquid inlet pipe, the outer surface of the liquid inlet pipe penetrates through the fixed sleeve shell and extends to the outside, and the output end of the liquid inlet pipe is threadedly connected with a cover.
6. The multifunctional medical skin-preparing knife according to claim 5, characterized in that: The bottom of the sealing cylinder is fixedly connected with a liquid outlet pipe, the liquid outlet pipe is linearly arranged along the outer surface of the sealing cylinder, and the outer surface of the liquid outlet pipe is fixedly connected with a solenoid valve.