Wireless electric dermatome
Patent Information
- Application Number
- CN202521069061.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-28
- Publication Date
- 2026-10-16
- Estimated Expiration
- 2035-05-28
AI Technical Summary
[0003]目前市场上的电动取皮刀为网电源有线供电,手术过程中使用者对患者在多体位方向变换取皮时受限于网电源插口位置等因素极其不便;电动取皮刀使用后要进行及时的清洗消毒,但有线电动取皮刀手持件部分有电路系统不能直接用水清洗,清洗时依赖于用纱布等擦拭,不能彻底清洗手持件刀头部分的血渍等污染物,长期使用容易沉积,清洗消毒不彻底容易造成设备损坏,使用不方便,因此,现提供一种无线电动取皮刀
通过在取皮刀机体的内部内置充电电池,摆脱了网电源插口位置的限制,避免了有线电动取皮刀因手持件部分有电路系统不能直接用水清洗的问题,无线设计使得设备整体可更方便地进行清洗消毒,能彻底清洗刀头部分的血渍等污染物,减少污染物长期沉积的可能,降低设备损坏风险,保障设备的卫生和正常使用。
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Figure CN224853468U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical instrument technical field especially relates to a wireless electric skin knife. BACKGROUND
[0002] The electric skin knife is driven by electricity, uses the mechanical transmission device of the equipment, drives the high-speed reciprocating motion of the skin knife blade, and is used for the medical equipment during the skin transplantation of human body. It is convenient to operate, avoids the cumbersome operation steps in the traditional skin grafting, and the whole skinning process can be completed within dozens of seconds, so that the skinning time is greatly shortened. The skinning width and thickness are adjustable, the skinning is continuous and not easy to interrupt, the skin is flat, the edge is neat, the thickness is uniform, and the skinning use rate, the skin graft survival rate, the success rate of the eschar operation, the cure rate and the satisfaction of the patient are effectively improved.
[0003] The electric skin knife on the market is powered by a wired network power supply, and the user is limited by the network power supply socket position and other factors when changing the skinning direction of the patient in multiple body positions during the operation. The electric skin knife needs to be cleaned and disinfected in time after use, but the circuit system of the handheld part of the wired electric skin knife cannot be directly cleaned with water, and the blood stains and other pollutants on the handheld part of the knife head cannot be completely cleaned during cleaning. Long-term use can easily deposit, incomplete cleaning and disinfection can easily cause damage to the equipment, and use is not convenient, therefore, the wireless electric skin knife is provided. UTILIZY MODEL CONTENT
[0004] In view of the defects of the prior art, the utility model provides a wireless electric skin knife, which is internally provided with a charging battery, so as to avoid the limitation of the network power supply socket position, avoid the problem that the circuit system of the handheld part of the wired electric skin knife cannot be directly cleaned with water, and make the whole equipment more convenient to clean and disinfect, so as to completely clean the blood stains and other pollutants on the handheld part of the knife head, reduce the possibility of long-term deposition of pollutants, reduce the risk of equipment damage, ensure the hygiene and normal use of the equipment, and overcome the defects of the prior art.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: A wireless electric skin knife, comprising a skin knife body, a battery compartment is arranged in the rear end of the skin knife body, a rear cover sleeve is connected to the rear end of the battery compartment, a rear cover is screwed to the inner side of the rear cover sleeve, a charging battery is arranged in the battery compartment, the charging battery is provided with an auxiliary installed battery steel hook, a supporting structure is fixed to the rear end outer wall of the skin knife body, and a buffer structure is connected to the supporting structure.
[0006] As a further scheme of the utility model: the supporting structure comprises a fixing sleeve fixed to the rear end outer wall of the skin knife body, and a clamping protruding edge is arranged at one end of the fixing sleeve.
[0007] As a further embodiment of this utility model: the buffer structure includes a connecting ring that is sleeved on a fixed sleeve, and buffer rods perpendicular to the connecting ring are provided at equal intervals on the sides of the connecting ring.
[0008] As a further improvement of this utility model: a screw connection hole is provided on the outer wall of the rear end of the skin-removing knife body, and the fixing sleeve is connected to the screw connection hole through a first screw.
[0009] As a further improvement of this utility model, the buffer rod is connected to the connecting ring by a second screw.
[0010] As a further embodiment of this utility model: a first magnet block is equidistantly embedded on the side of the snap-fit protrusion facing the connecting ring, and a second magnet block, the same number as the first magnet block, is equidistantly embedded on the side of the connecting ring facing the snap-fit protrusion.
[0011] As a further improvement of this utility model, the length of the buffer rod is greater than the length of the dermabrasion machine body.
[0012] As a further improvement of this utility model: the skin-removing knife body is provided with a control switch and a charging port, a sealing plug is provided at the charging port, and a sealing ring is provided at the connection between the side of the back cover and the back cover sleeve.
[0013] The beneficial effects of this utility model are as follows: By incorporating a rechargeable battery inside the dermabrasion scalpel, the limitation of the power outlet location is eliminated, avoiding the problem of wired electric dermabrasion scalpels being unable to be directly cleaned with water due to the circuitry in the handpiece. The wireless design makes the entire device easier to clean and disinfect, thoroughly removing bloodstains and other contaminants from the scalpel head, reducing the possibility of long-term contaminant buildup, lowering the risk of equipment damage, and ensuring the hygiene and normal use of the device. Attached Figure Description
[0014] Figure 1 This is a partial disassembled structural diagram of a wireless electric dermabrasion knife proposed in this utility model.
[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of a wireless electric dermabrasion knife proposed in this utility model.
[0016] Figure 3 This is a schematic cross-sectional view of the buffer structure of a wireless electric dermabrasion knife proposed in this utility model.
[0017] Figure 4 This utility model proposes a wireless electric dermabrasion knife. Figure 2 Enlarged structural diagram at point A in the middle.
[0018] In the diagram: 1. Leather knife body; 2. Battery compartment; 3. Back cover; 4. Back cover; 5. Battery hook; 6. Rechargeable battery; 7. Screw connection hole; 8. First screw; 9. Connecting ring; 10. Fixing sleeve; 11. Buffer rod; 12. Second magnet; 13. Second screw; 14. Snap-fit protrusion; 15. First magnet; 16. Charging port; 17. Control switch. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0020] Example 1, referring to Figures 1-4 A wireless electric dermabrasion knife includes a dermabrasion knife body 1, a battery compartment 2 located inside the rear end of the dermabrasion knife body 1, a rear cover 3 connected to the rear end of the battery compartment 2, a rear cover 4 screwed to the inner side of the rear cover 3, a rechargeable battery 6 located inside the battery compartment 2, the rechargeable battery 6 being equipped with a battery steel hook 5 for auxiliary installation, a support structure fixed to the outer wall of the rear end of the dermabrasion knife body 1, a buffer structure connected to the support structure, a control switch 17 and a charging port 16 located on the dermabrasion knife body 1, a sealing plug located at the charging port 16, and a sealing ring located at the connection between the side of the rear cover 4 and the rear cover 3.
[0021] The support structure includes a fixed sleeve 10 that is fixedly sleeved on the outer rear end of the skin-removing knife body 1, and one end of the fixed sleeve 10 is provided with a snap-fit protrusion 14.
[0022] The buffer structure includes a connecting ring 9 that is sleeved on the fixed sleeve 10, and buffer rods 11 perpendicular to the connecting ring 9 are provided at equal intervals on the sides of the connecting ring 9. The buffer rods 11 are connected to the connecting ring 9 by a second screw 13, and the length of the buffer rods 11 is greater than the length of the skin-removing knife body 1.
[0023] The outer wall of the rear end of the skin removal knife body 1 is provided with a screw connection hole 7. The fixing sleeve 10 is connected to the screw connection hole 7 through the first screw 8, which facilitates the fixing and disassembly of the fixing sleeve 10.
[0024] By directly integrating a rechargeable battery 6 inside the dermabrasion scalpel body 1, the limitation of the power outlet location is eliminated. Users can perform skin harvesting in multiple positions on patients with greater flexibility and freedom, no longer constrained by power cords. This improves the convenience and flexibility of surgical operations and avoids the problem of wired electric dermabrasion scalpels being unable to be directly cleaned with water due to the circuitry in the handpiece. The wireless design also makes the entire device easier to clean and disinfect, thoroughly removing blood stains and other contaminants from the scalpel head, reducing the possibility of long-term contaminant accumulation, lowering the risk of device damage, and ensuring the hygiene and normal use of the device. Furthermore, the built-in rechargeable battery 6 provides stable power, ensuring continuous operation of the dermabrasion scalpel body 1 and preventing surgical interruptions due to power cord issues, thus improving surgical efficiency. At the same time, a stable power supply and excellent device performance also enhance surgical safety.
[0025] Since the skin removal knife body 1 does not carry a rechargeable battery 6 when it is sterilized, it is only necessary to install the rechargeable battery 6 when it is in use. In order to maintain a sterile channel when installing the rechargeable battery 6, the rechargeable battery 6 needs to be placed into the battery compartment 2 using the battery hook 5 and the back cover 4 is closed to achieve sterile operation.
[0026] By providing buffer rods 11 arranged in a ring on the side of the connecting ring 9, when the dermabrasion scalpel body 1 is dropped, the buffer rods 11 will contact the ground before the body, forming a "ground-first support" structure. This design ensures that the impact force acts on the buffer rods 11 first, rather than directly impacting the precision components inside the dermabrasion scalpel body 1 (such as the motor and battery). The physical deformation of the buffer rods 11 (such as slight bending and elastic compression) dissipates part of the impact force, reducing the instantaneous impact force transmitted to the dermabrasion scalpel body 1. This significantly reduces the damage to the equipment caused by the impact force during a drop, especially protecting critical components such as internal circuits and batteries, extending the service life of the equipment, and ensuring the reliability of the equipment during medical operations.
[0027] Example 2 is an optimization based on Example 1, specifically: The first magnet blocks 15 are equidistantly embedded on the side of the snap-fit protrusion 14 facing the connecting ring 9, and the connecting ring 9 is equidistantly embedded with the same number of second magnet blocks 12 as the first magnet blocks 15.
[0028] The connecting ring 9 is firmly fixed to the fixing sleeve 10 by the mutual attraction of multiple first magnet blocks 15 and second magnet blocks 12. When the skin-removing knife body 1 needs to be used, simply twist the connecting ring 9 to make the connecting ring 9 and the skin-removing knife body 1 rotate relative to each other, thereby causing the first magnet blocks 15 and the second magnet blocks 12 to be misaligned. By utilizing the mutual repulsion between the first magnet blocks 15 and the second magnet blocks 12, the connecting ring 9 and the buffer rod 11 can be removed from the skin-removing knife body 1. After use and cleaning, the connecting ring 9 and the buffer rod 11 can be put back on.
[0029] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. A wireless electric dermabrasion knife, comprising a dermabrasion knife body (1), characterized in that, The rear end of the dermabrasion machine body (1) is provided with a battery compartment (2), and the rear end of the battery compartment (2) is connected to a rear cover (3). A rear cover (4) is screwed onto the inner side of the rear cover (3). The battery compartment (2) is provided with a rechargeable battery (6), and the rechargeable battery (6) is equipped with a battery steel hook (5) for auxiliary installation. The rear end of the dermabrasion machine body (1) is fixed with a support structure, and a buffer structure is connected to the support structure.
2. The wireless electric dermabrasion knife according to claim 1, characterized in that, The support structure includes a fixed sleeve (10) that is fixedly sleeved on the outer wall of the rear end of the skin-removing knife body (1), and one end of the fixed sleeve (10) is provided with a snap-fit protrusion (14).
3. The wireless electric dermabrasion knife according to claim 2, characterized in that, The buffer structure includes a connecting ring (9) that is sleeved on a fixed sleeve (10), and buffer rods (11) perpendicular to the connecting ring (9) are provided at equal intervals on the sides of the connecting ring (9).
4. The wireless electric dermabrasion knife according to claim 2, characterized in that, The outer wall of the rear end of the skin-removing knife body (1) is provided with a screw connection hole (7), and the fixing sleeve (10) is connected to the screw connection hole (7) by a first screw (8).
5. The wireless electric dermabrasion knife according to claim 3, characterized in that, The buffer rod (11) is connected to the connecting ring (9) by the second screw (13).
6. A wireless electric dermabrasion knife according to claim 2, characterized in that, The first magnet block (15) is equidistantly embedded on the side of the snap-fit protrusion (14) facing the connecting ring (9), and the second magnet block (12) is equidistantly embedded on the side of the connecting ring (9) facing the snap-fit protrusion (14) in the same number as the first magnet block (15).
7. The wireless electric dermabrasion knife according to claim 3, characterized in that, The length of the buffer rod (11) is greater than the length of the skin-removing knife body (1).
8. The wireless electric dermabrasion knife according to claim 1, characterized in that, The skin-removing knife body (1) is equipped with a control switch (17) and a charging port (16). A sealing plug is provided at the charging port (16). A sealing ring is provided at the connection between the side of the back cover (4) and the back cover sleeve (3).