A skin-preparing knife convenient for clinical use

Abstract

The utility model belongs to the technical field of medical apparatus and instruments, concretely relates to a skin preparation knife convenient to clinical application, the skin preparation knife convenient to clinical application of the utility model sets up the limit comb tooth at the front end of handle, sets up the cutter head at the front end of the handle; Because the handle can be set up on the handle and slide back and forth along the handle axis, and the cutter head is located above the limit comb tooth, therefore can adjust the relative position relation of limit comb tooth and blade, when not using the skin preparation knife, can use the limit comb tooth to stop the blade, avoid accidentally contacting the blade, scratch the skin. The utility model fixes the handle and handle together by the locking member, guarantees that the cutter head does not move relatively with the handle during the skin preparation process.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a skin preparation knife that is convenient for clinical application. Background Technology

[0002] Skin preparation refers to the process of shaving hair and cleaning the surgical area before surgery. It involves cleaning the surgical area for patients scheduled for surgery, including not only hair removal but also skin washing, and sometimes iodine rinsing. Currently, common skin preparation razors have a relatively simple structure, usually consisting of a disposable plastic handle and blade. These razors are not very comfortable to hold, and prolonged use can easily lead to hand fatigue for medical staff, affecting the efficiency and quality of skin preparation.

[0003] The exposed blade of the skin preparation razor lacks effective protective devices, making it prone to accidental injury during opening and use, posing a safety hazard to both medical staff and patients. Currently used skin preparation razors are quite sharp, and even slight carelessness in handling can easily cut the patient's skin.

[0004] Chinese patent document CN217414099U (202221204176.5) discloses an easy-to-clean skin-preparing knife with lubricant. It has a protective cover on the blade holder to prevent the blade from scratching the skin. However, the protective cover and the blade are separate, which makes it inconvenient to use. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a skin preparation knife that is convenient for clinical application. Since the handle can slide back and forth along the handle axis and the blade head is located above the limiting comb teeth, the blade can be protected by adjusting the relative position between the blade head and the limiting comb teeth, so as to avoid scratching the skin when not in use. At the same time, the blade head can be quickly switched to the use state.

[0006] The technical problem to be solved by this utility model is achieved by the following technical solution: a skin preparation knife that is easy to use in clinical practice, including a handle, a blade head, a handle, limiting comb teeth and a locking component;

[0007] The limiting comb teeth are located at the front end of the handle, and the cutter head is located at the front end of the handle;

[0008] The handle is slidably mounted on the handle along the handle axis, the blade head is located above the limiting comb teeth, and the blade head is provided with a blade.

[0009] The locking component is provided on the handle and is used to fix the handle and the handle together.

[0010] Preferably, the handle is provided with a sliding groove along the handle axis;

[0011] The handle is slidably inserted into the sliding groove. The locking component includes a fastening bolt on the handle. The handle is provided with a limiting rail communicating with the sliding groove. The fastening bolt passes through the limiting rail and is connected to the handle.

[0012] Preferably, this invention also includes a protective ring disposed at the front end of the handle, with the blade and limiting comb teeth located inside the protective ring. Enclosing the blade and limiting comb teeth with the protective ring enhances safety.

[0013] In a preferred embodiment of this invention, the protective ring includes a fixing ring connected to the handle and a detachable sealing ring disposed on the fixing ring. Designing the protective ring as two parts, a fixing ring and a sealing ring, facilitates the installation of the knife handle and the grip.

[0014] Preferably, this invention also includes a brush pivotally connected to the rear end of the handle, and the handle has a receiving groove that matches the brush. By providing a brush at the rear end of the handle, the shaved hair can be swept away, facilitating subsequent cleaning.

[0015] Preferably, the blade of this invention has a textured cutting edge. The textured design of the cutting edge makes the blade sharp yet gentle, reducing the likelihood of scratching the skin.

[0016] In a preferred embodiment of this invention, the blade head includes a first fixing plate fixed to the blade handle and a second fixing plate detachably disposed on the first fixing plate, with the blade located between the first and second fixing plates. The first and second fixing plates are used to fix the blade, facilitating its installation and removal.

[0017] Preferably, this invention also includes a silicone wrapping layer on the outside of the handle. This silicone wrapping layer on the outside of the handle provides good anti-slip properties and reduces hand pressure, alleviating fatigue during prolonged use.

[0018] Preferably, the silicone coating layer of this invention has anti-slip textures. These textures improve stability during the skin preparation and shaving process, making the operation easier.

[0019] In a preferred embodiment of this invention, the middle and rear ends of the handle are provided with an arc-shaped protrusion, and the handle adopts an ergonomic design, the shape of which is based on the natural gripping state of the human hand, reducing hand fatigue.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: The prep knife of this utility model, which is convenient for clinical application, has the limiting comb teeth set at the front end of the handle and the blade head set at the front end of the handle. Since the handle can be slidably mounted on the handle along the handle axis and the blade head is located above the limiting comb teeth, the relative positional relationship between the limiting comb teeth and the blade can be adjusted. When the prep knife is not in use, the limiting comb teeth can be used to block the blade and avoid accidental contact with the blade, which could scratch the skin.

[0021] This invention utilizes a locking component to fix the handle and the blade together, ensuring that the blade will not move relative to the handle during the skin preparation process, thus guaranteeing safety and stability during the skin preparation process.

[0022] Because of its specially designed handle, which is thicker than the knife handle, it is more comfortable to hold. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the skin preparation knife that is convenient for clinical application according to this utility model;

[0024] Figure 2 This is a perspective view of the skin preparation knife that is convenient for clinical application according to this utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the blade described in this utility model;

[0026] Figure 4 This is a structural schematic diagram of the cutter head in the retracted state in an embodiment of this utility model;

[0027] Figure 5 This is a structural schematic diagram of the cutter head in use in an embodiment of this utility model.

[0028] In the diagram, 1 is the handle, 2 is the blade head, 3 is the handle, 4 is the limiting comb teeth, 5 is the blade, and 51 is the mesh-patterned blade edge;

[0029] 11 Sliding groove, 12 Limiting rail, 13 Receiving groove;

[0030] 6 Fastening bolts, 7 Protective rings, 71 Fixing rings, 72 Sealing rings, 8 Brushes;

[0031] 21 First fixing plate, 22 Second fixing plate. Detailed Implementation

[0032] The technical solutions in the embodiments of this utility model will now be clearly and completely described in conjunction with the accompanying drawings.

[0033] like Figure 1 and Figure 2 As shown, a skin preparation knife that is convenient for clinical application includes a handle 1, a blade head 2, a handle 3, limiting comb teeth 4, and a locking component.

[0034] The limiting comb teeth 4 are located at the front end of the handle 1, and the blade head 2 is located at the front end of the handle 3. The limiting comb teeth 4 are used to comb the hair in advance to prevent hair from getting stuck.

[0035] The handle 3 is slidably mounted on the handle 1 along its axial direction. The blade head 2 is positioned above the limiting comb teeth 4, and a blade 5 is mounted on the blade head 2. In this embodiment, the blade 5 is arc-shaped, which allows for better skin contact and easier hair removal. When the patient's skin is uneven or has rashes, the arc-shaped blade 5 of the shaving razor, combined with the limiting comb teeth 4, allows for gentle gliding across the skin surface while removing hair, avoiding deep skin damage.

[0036] The locking component is provided on the handle 3 and is used to fix the handle 3 and the handle 1 together.

[0037] The handle 1 has a sliding groove 11 in the middle along the axial direction of the handle 1, that is, the handle 1 is hollow.

[0038] The handle 3 is slidably inserted into the sliding groove 11. The locking component includes a fastening bolt 6 provided on the handle 3. The handle 1 is provided with a limiting rail 12 communicating with the sliding groove 11. The fastening bolt 6 passes through the limiting rail 12 and is threadedly connected to the handle 3. When the blade head 2 moves to a predetermined position, the handle 1 and the handle 3 can be fixed together by rotating the fastening bolt 6.

[0039] The clinically applicable skin preparation knife also includes a protective ring 7 located at the front end of the handle 1, with the blade 2 and the limiting comb teeth 4 located inside the protective ring 7. The edge of the protective ring 7 is rounded to prevent skin abrasion.

[0040] The protective ring 7 includes a fixing ring 71 connected to the handle 1 and a detachable sealing ring 72 disposed on the fixing ring 71. The sealing ring 72 and the fixing ring 71 are snapped together or fixedly connected with bolts.

[0041] The skin preparation knife, which is convenient for clinical application, also includes a brush 8 that is pivotally connected to the rear end of the handle 1 via a rotating shaft. The handle 1 is provided with a receiving groove 13 that matches the brush 8. When the brush 8 is not in use, it can be stored in the receiving groove 13. Since the brush 8 is pivotally connected to the handle 1, the loss of the brush 8 can be avoided, making it convenient to use.

[0042] like Figure 3 As shown, the blade 5 is provided with a textured cutting edge 51.

[0043] The blade head 2 includes a first fixing plate 21 fixed on the handle 3 and a second fixing plate 22 detachably disposed on the first fixing plate 21. The blade 5 is located between the first fixing plate 21 and the second fixing plate 22. The first fixing plate 21 and the second fixing plate 22 are fixedly connected by bolts.

[0044] The aforementioned prep knife, which is convenient for clinical use, also includes a silicone wrapping layer (not shown in the figure) disposed on the outside of the handle 1.

[0045] The silicone coating layer has anti-slip textures (not shown in the figure).

[0046] The handle 1 is curved in the axial direction, which makes it convenient for the hand to apply force to the handle 1 during the shaving process. The middle and rear ends of the handle 1 are arc-shaped protrusions.

[0047] In this embodiment, as Figure 4 As shown, when not in use, the blade head 2 can be moved to the rear end of the handle 1, so that the limiting comb teeth 4 block the cutting edge of the blade 5, thus preventing accidental contact with the cutting edge of the blade 5 and scratching the skin.

[0048] In this embodiment, as Figure 5 As shown, when a shaving knife is needed for shaving, the blade head 2 can be moved towards the front end of the handle 1 so that the cutting edge of the blade 5 protrudes from above the limiting comb teeth 4 to clean the hair.

Claims

1. A skin-preparation knife for facilitating clinical application, characterized by: It includes a handle (1), a blade head (2), a handle (3), a limiting comb tooth (4), and a locking component; The limiting comb teeth (4) are located at the front end of the handle (1), and the blade head (2) is located at the front end of the handle (3); The handle (3) is slidably mounted on the handle (1) along the axial direction of the handle (1), the blade (2) is located above the limiting comb teeth (4), and the blade (5) is mounted on the blade (2); The locking member is provided on the handle (3) and is used to fix the handle (3) and the handle (1) together.

2. The prep knife for clinical application according to claim 1, characterized in that: The handle (1) is provided with a sliding groove (11) along the axial direction of the handle (1); The handle (3) is slidably inserted into the sliding groove (11). The locking component includes a fastening bolt (6) provided on the handle (3). The handle (1) is provided with a limiting rail (12) communicating with the sliding groove (11). The fastening bolt (6) passes through the limiting rail (12) and is connected to the handle (3).

3. The prep knife for clinical application according to claim 1, characterized in that: It also includes a protective ring (7) set at the front end of the handle (1), and the blade (2) and the limiting comb teeth (4) are located inside the protective ring (7).

4. The prep knife for clinical application according to claim 3, characterized in that: The protective ring (7) includes a fixing ring (71) connected to the handle (1) and a detachable sealing ring (72) disposed on the fixing ring (71).

5. The prep knife for clinical application according to claim 1, characterized in that: It also includes a brush (8) pivotally connected to the rear end of the handle (1), and the handle (1) is provided with a receiving groove (13) that matches the brush (8).

6. The prep knife for clinical application according to claim 1, characterized in that: The blade (5) is provided with a textured cutting edge (51).

7. The prep knife for clinical application according to claim 1, characterized in that: The blade (2) includes a first fixing plate (21) fixed on the handle (3) and a second fixing plate (22) detachably disposed on the first fixing plate (21), and the blade (5) is located between the first fixing plate (21) and the second fixing plate (22).

8. The prep knife for clinical application according to claim 1, characterized in that: It also includes a silicone wrapping layer on the outside of the handle (1).

9. The prep knife for clinical application according to claim 8, characterized in that: The silicone coating layer has anti-slip textures.

10. The prep knife for clinical application according to claim 1, characterized in that: The middle and rear ends of the handle (1) are provided with an arc-shaped protrusion.

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