Electric skin preparation knife

Abstract

The utility model provides an electric skin preparation knife, and belongs to the technical field of medical instruments. Comprising a cutter handle, a cutter head installed at the end of the cutter handle and locking structures embedded in the two sides of the cutter handle, and the locking structures penetrate through the cutter handle to be matched with the cutter head and lock the cutter handle and the cutter head. The tool bit comprises a lower shell and an upper shell, and the lower shell and the upper shell are spliced, embedded into the tool handle and locked through a locking structure. A cutting structure is arranged in the lower shell, and the upper shell and the lower shell are spliced to limit the cutting structure. The cutter head and the locking structure are arranged, the cutter head is formed by splicing and clamping the lower shell and the upper shell which are detachable and is locked through the locking structure, the stability of the cutter head is enhanced, and when the cutter head is detached, the cutter head can be effectively and rapidly detached from the cutter handle only by pushing the locking structure, so that the cutter head is convenient to use. And meanwhile, the tool bit is completely detached, so that the tool bit is conveniently and thoroughly cleaned and disinfected, and the cleaning efficiency, sanitation and safety are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to an electric skin preparation knife. Background Art

[0002] Skin preparation is a series of cleaning preparations performed on the patient's surgical area before surgery. The main purpose is to reduce the number of bacteria on the skin and reduce the risk of surgical incision infection. Skin preparation includes steps such as hair removal, skin cleaning and disinfection. When preparing skin, the integrity of the skin should be maintained as much as possible to avoid damage to reduce the possibility of infection. Traditionally, skin preparation knives are commonly used skin preparation tools, and they are usually disposable knives, one knife for each patient to avoid cross infection, which is more convenient, safe and hygienic.

[0003] The currently commonly used disposable skin preparation knife consists of a blade, a knife holder and a protective cover. When in use, the cutting surface of the blade needs to be kept parallel to the patient's skin to avoid scratching the patient. However, in actual operation, inexperienced operators cannot grasp the position of the blade well, which can easily scratch the patient, resulting in low safety.

[0004] There is an electric skin preparation knife in the prior art. It is driven by electricity and can efficiently and accurately remove hair and dirt on the skin, reduce the risk of infection, and improve surgical efficiency. Compared with the traditional manual skin preparation knife, the electric skin preparation knife has higher safety and convenience. However, the electric skin preparation knife is expensive and needs to be reused. After the previous patient uses it, the blade part needs to be disassembled for cleaning and disinfection. The existing electric skin preparation knife head is difficult to completely disassemble, resulting in dead corners for cleaning, poor cleaning and disinfection effects, and low efficiency. Therefore, the present application provides an electric skin preparation knife to meet the needs. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an electric skin preparation knife to solve the problem that the knife head of the existing electric skin preparation knife is difficult to completely disassemble, resulting in low efficiency in cleaning and disinfection.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] An electric skin preparation knife comprises a knife handle, a knife head mounted at the end of the knife handle, and a locking structure embedded in both sides of the knife handle, wherein the locking structure penetrates the knife handle and cooperates with the knife head to lock the knife handle and the knife head; the knife head comprises a lower shell and an upper shell, wherein the lower shell is assembled with the upper shell, embedded in the knife handle and locked by the locking structure; a cutting structure is arranged inside the lower shell, and the upper shell is assembled with the lower shell to limit the cutting structure;

[0008] A driving structure is provided inside the knife handle, a connecting piece rotatably connected to the knife handle is provided on one side of the driving structure, and an output end of the driving structure passes through one end of the connecting piece and drives it to swing;

[0009] The cutting structure is clamped with the other end of the connecting piece, and the cutting structure and the connecting piece swing synchronously.

[0010] Optionally, locking grooves are respectively provided on two symmetrical side surfaces of the rear portion of the lower shell body, and the locking groove is composed of a Z-shaped portion connected to a single-shaped portion. The end opening of the Z-shaped portion is called an inlet slot, and the end of the single-shaped portion is called a locking port, and it has a V-shaped structure.

[0011] Optionally, movable grooves are respectively provided on two symmetrical side surfaces of the rear portion of the upper shell, and an elastic buckle plate with a V-shaped structure is provided inside the movable groove. One end of the elastic buckle plate is fixedly connected to an inner wall of one side of the movable groove, and the other end of the elastic buckle plate is a free end and has a gap with the inner wall of the other side of the movable groove.

[0012] Optionally, a pressure plate is provided inside the rear portion of the upper shell body, the pressure plate is fixedly connected to the inner wall side wall of the upper shell body, and a U-shaped avoidance groove is provided at the bottom of the pressure plate.

[0013] Optionally, locking holes are respectively opened on two symmetrical side surfaces of the knife handle, and a baffle is fixedly connected inside the locking hole, and the baffle is located on the inner wall of the knife handle.

[0014] Optionally, the locking structure includes a slider, a locking block is fixedly connected to one side of the slider, a blocking piece is fixedly connected to the other side of the slider, and an outer side wall of the blocking piece is provided with anti-slip grooves.

[0015] Optionally, one end of the slider away from the locking block is fixedly connected with a spring, and when the locking structure is installed inside the locking hole, the spring is located outside the baffle and the other end of the spring abuts against the end of the locking hole.

[0016] Optionally, the cutting structure includes a mounting plate, which is composed of a horizontal plate and an inclined plate. A plurality of mounting spring clips are fixedly connected to one side of the horizontal plate of the mounting plate. A groove corresponding to the mounting spring clip is provided on the connecting piece. The mounting plate is embedded in the groove on the connecting piece through the mounting spring clip and is detachably connected to the connecting piece.

[0017] Optionally, the bottom of the inclined plate of the mounting plate is located at the head end opening of the cutter head, and a clamping block is fixedly connected to the top of the inclined plate of the mounting plate.

[0018] Optionally, the cutting structure further comprises a blade, the blade is provided with a slot adapted to a clamping block on the mounting plate, and the blade and the mounting plate can be fixed by the clamping block and the slot.

[0019] Compared with the prior art, the utility model has at least the following beneficial effects:

[0020] In the above scheme, by setting a cutter head and a locking structure, the cutter head is composed of a detachable lower shell and an upper shell that are spliced ​​and snap-connected. The locking structure can lock the lower shell, and after the upper shell is snap-connected with the locked lower shell, the locking structure is also locked at the same time, which can effectively enhance the fixing effect of the cutter head and enhance the stability of the cutter head. When disassembling the cutter head, it is only necessary to push the locking structure. During the movement of the locking structure, the lock between the lower shell and the upper shell is first released, and at the same time, the lock of the lower shell is also released, so the cutter head can be effectively and quickly removed from the handle, and the cutter head itself can be completely disassembled, which is convenient for thorough cleaning and disinfection of the cutter head, thereby improving cleaning efficiency and hygiene and safety.

[0021] By setting a mounting plate, which is arranged between the lower shell and the upper shell and is clamped and limited by the lower shell and the upper shell, the blade can be quickly fixed and installed. At the same time, the blade can be quickly removed after the lower shell and the upper shell are disassembled, further improving the efficiency of cleaning and disinfecting the blade head. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the present invention and, together with the description, further serve to explain the principles of the present invention and enable those skilled in the relevant art to make and use the present invention.

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of an electric skin preparation knife;

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the blade head and the cutting structure;

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the lower shell;

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the upper shell;

[0027] Figure 5 for Figure 4 The enlarged structural diagram at A in the middle;

[0028] Figure 6 It is a schematic diagram of a partial three-dimensional enlarged structure of the handle;

[0029] Figure 7 It is a three-dimensional enlarged structural schematic diagram of the locking structure;

[0030] Figure 8 It is a partial three-dimensional enlarged structural diagram of the upper shell and the lower shell;

[0031] Fig. 9 for Figure 8 The enlarged structural diagram at B in the middle;

[0032] Fig.10 It is a three-dimensional enlarged structural diagram of the cutting structure and the connecting parts.

[0033] [reference numerals]

[0034] 1. Knife handle; 2. Knife head; 3. Locking structure; 4. Cutting structure; 5. Connector; 6. Driving structure; 7. Lower shell; 8. Upper shell; 9. Locking slot; 10. Inlet slot; 11. Locking port; 12. Press plate; 13. Avoidance slot; 14. Elastic buckle plate; 15. Movable slot; 16. Locking hole; 17. Baffle; 18. Slider; 19. Baffle; 20. Locking block; 21. Spring; 22. Mounting plate; 23. Mounting spring; 24. Blade.

[0035] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0036] The following is a detailed description of an electric skin preparation knife provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0037] It should be noted that the references to "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when describing specific features, structures or characteristics in conjunction with an embodiment, it should be within the knowledge of technicians in the relevant field to implement such features, structures or characteristics in conjunction with other embodiments.

[0038] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0039] It is to be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0040] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0041] like Figures 1 to 10As shown, an embodiment of the utility model provides an electric skin preparation knife, comprising a handle 1, a blade head 2 installed at the end of the handle 1, and a locking structure 3 embedded in both sides of the handle 1, the locking structure 3 passes through the handle 1 and cooperates with the blade head 2 to lock the handle 1 and the blade head 2, locking holes 16 are respectively opened on the symmetrical sides of the handle 1, and a baffle 17 is fixedly connected inside the locking hole 16, and the baffle 17 is located on the inner side wall of the handle 1. The locking hole 16 is a through hole structure with arc shapes at both ends. The baffle 17 closes the end portion of the locking hole 16 close to the inner side wall of the handle 1, so that the cross section of the locking hole 16 is an L-shaped structure, and the locking structure 3 passes through the handle 1 through the locking hole 16 to cooperate with the blade head 2, and the locking structure 3 can be The locking hole 16 slides inside to realize that the locking structure 3 releases the locking state of the cutter head 2, which makes it convenient for the cutter head 2 to be quickly disassembled from the handle 1, and then facilitates the cleaning and disinfection of the locking structure 3. The cutter head 2 includes a lower shell 7 and an upper shell 8. The lower shell 7 and the upper shell 8 are assembled and embedded in the handle 1 and locked by the locking structure 3. A cutting structure 4 is provided inside the lower shell 7. The upper shell 8 and the lower shell 7 are assembled to limit the cutting structure 4. A driving structure 6 is provided inside the handle 1. A connecting member 5 rotatably connected to the handle 1 is provided on one side of the driving structure 6. The output end of the driving structure 6 passes through one end of the connecting member 5 and drives it to swing. The cutting structure 4 is clamped with the other end of the connecting member 5, and the cutting structure 4 and the connecting member 5 swing synchronously.

[0042] like Figures 2 to 5 As shown, the lower shell 7 has locking grooves 9 on two symmetrical sides at the rear end, and the locking groove 9 is composed of a Z-shaped part and a one-shaped part connected. The end opening of the Z-shaped part is called an inlet groove 10, and the end of the one-shaped part is called a locking port 11, and it is a V-shaped structure, which is convenient for the lower shell 7 to cooperate with the upper shell 8. The upper shell 8 has movable grooves 15 on two symmetrical sides at the rear end, and an elastic buckle plate 14 with a V-shaped structure is arranged inside the movable groove 15. One end of the elastic buckle plate 14 is fixedly connected to the inner wall of one side of the movable groove 15, and the other end of the elastic buckle plate 14 is a free end. There is a gap with the inner wall on the other side of the movable groove 15, and a pressure plate 12 is provided inside the tail of the upper shell body 8. The pressure plate 12 is fixedly connected to the inner wall of the upper shell body 8, and a U-shaped avoidance groove 13 is opened at the bottom of the pressure plate 12. By setting the pressure plate 12, when the lower shell body 7 and the upper shell body 8 are assembled and installed on the handle 1, the pressure plate 12 is located above the cutting structure 4, and the cutting structure 4 is connected to the connecting member 5 through the avoidance groove 13. The pressure plate 12 can limit the up and down movement of the cutting structure 4 to avoid the up and down movement of the cutting structure 4 resulting in poor cutting effect.

[0043] like Figures 7 to 9As shown, the locking structure 3 includes a slider 18, a protrusion is provided on the side wall of the slider 18, and a groove is provided on the inner wall of the locking hole 16 to match the protrusion of the slider 18. When the slider 18 is installed in the locking hole 16, the protrusion is embedded in the groove to prevent the slider 18 from falling off the locking hole 16, and the cooperation between the protrusion and the groove does not affect the sliding of the slider 18 in the locking hole 16. A locking block 20 is fixedly connected to one side of the slider 18, and a baffle 19 is fixedly connected to the other side of the slider 18. The outer wall of the baffle 19 is provided with anti-slip grooves to facilitate pushing the baffle 19 to move. A spring 21 is fixedly connected to one end of the slider 18 away from the locking block 20. When the locking structure 3 is installed in the locking hole 16, the spring 21 is located on the outside of the baffle 17 and the other end of the spring 21 abuts against the end of the locking hole 16. When the locking structure 3 is installed in the locking hole 16, the slider 18 is embedded in the locking hole 16 and is located on the outside of the baffle 17, and can slide along the length direction of the locking hole 16. The locking hole 16 squeezes the spring to shrink during the sliding process.

[0044] Among them, when the external force pushing the slider 18 disappears, the spring extension will push the slider 18 to return to its original position, and at the same time, the locking block 20 passes through the locking hole 16 and is embedded in the locking groove 9 to lock the lower shell 7 inside the knife handle 1. After the upper shell 8 is installed inside the knife handle 1 and assembled with the lower shell 7, the elastic buckle plate 14 is embedded in the locking groove 9 from the locking port 11 and abuts against the locking block 20 to restrict the locking block 20 and prevent the locking block 20 from moving inside the locking groove 9, thereby achieving the purpose of locking the lower shell 7 inside the knife handle 1. At the same time, when the elastic buckle plate 14 is embedded in the locking groove 9, there is a large friction force between the inner side wall of the locking groove 9, so that the lower shell 7 and the upper shell 8 are fixedly connected, thereby achieving the purpose of fixing the cutter head 2 as a whole inside the knife handle 1. The force pushes the baffle 19 to drive the locking block 20 to slide along the locking hole 16 to overcome the spring resistance, and pushes the elastic buckle plate 14 to gradually change from a V-shape to a straight shape and enter the movable groove 15, and then the locking state between the lower shell 7 and the upper shell 8 is released. At this time, the upper shell 8 can be removed from the handle 1 by pushing it horizontally. Then, the lower shell 7 is pulled horizontally to make the locking block 20 move along the locking groove 9 until the locking block 20 disengages from the locking groove 9 at the slot 10, and the lower shell 7 can be removed from the handle 1. At the same time, since the lower shell 7 is separated from the upper shell 8, the cutting structure 4 can be disengaged from the lower shell 7, thereby completing the complete disassembly of the knife head 2, facilitating the thorough cleaning and disinfection of the knife head 2, and making the use of the electric skin preparation knife safer and more hygienic.

[0045] like Figure 2 and Fig.10As shown, the cutting structure 4 includes a mounting plate 22, which is composed of a horizontal plate and an inclined plate. A plurality of mounting spring buckles 23 are fixedly connected to one side of the horizontal plate of the mounting plate 22. A groove corresponding to the mounting spring buckle 23 is provided on the connecting member 5. The mounting plate 22 is embedded in the groove on the connecting member 5 through the mounting spring buckle 23 and is detachably connected to it. The bottom of the inclined plate of the mounting plate 22 is located at the opening at the head end of the cutter head 2. A clamping block is fixedly connected to the top of the inclined plate of the mounting plate 22. The cutting structure 4 also includes a blade 24. A clamping slot is provided on the blade 24 and is compatible with the clamping block on the mounting plate 22. The blade 24 and the mounting plate 22 can be fixed by the clamping block and the clamping slot.

[0046] The working principle provided by the utility model is that when the cutter head is installed, the lower shell body 7 is first installed at the open end of the knife handle 1 and matched with the locking structure 3. When the lower shell body 7 enters the open end of the knife handle 1, it is necessary to make the locking block 20 enter the locking groove 9 from the entry slot 10 and slide along the locking groove 9 to its lowermost position. At this time, the tail end section of the lower shell body 7 is in close contact with the open end surface of the knife handle 1; then the cutting structure 4 is installed inside the lower shell body 7. When installing the cutting structure 4, first the mounting spring buckle 23 on the mounting plate 22 is clamped and fixed with the connecting piece 5, and then the blade 24 is fixedly installed on the mounting plate 22; finally, the upper shell body 8 is smoothly inserted into the port of the knife handle 1 along the upper end surface of the lower shell body 7. During this process, the pressure plate 12 is located above the mounting plate 22, and the mounting plate 22 is embedded in the avoidance groove. 13 and fits tightly against its top wall, and at the same time, the upper end of the lower shell 7 generates pressure on the elastic buckle plate 14 to deform it and enter the movable groove 15, until the elastic buckle plate 14 moves to the locking port 11, and the pressure on the elastic buckle plate 14 disappears, the elastic buckle plate 14 recovers its deformation and embeds into the locking port 11, so that the lower shell 7 and the upper shell 8 are clamped and fixed. Since the lower shell 7 is restricted by the locking block 20 and cannot move forward and backward, the lower shell 7 and the upper shell 8 are clamped and fixed, thereby realizing the function of completely fixing the cutter head 2 inside the handle 1 through the locking structure 3, and at this time, the lower shell 7 and the upper shell 8 are completely fitted to form a cavity structure with openings at both ends, and the cutting structure 4 is limited so that it can only swing left and right but cannot move up and down, thereby achieving the limiting effect on the blade 24.

[0047] When disassembling the cutter head, the operator needs to push the baffle 19 to overcome the spring resistance and move it, and after moving to a certain position, push the bottom of the elastic buckle plate 14 to deform it and enter the movable groove 15, so that the fixed state between the upper shell 8 and the lower shell 7 is released, and the upper shell 8 can be smoothly moved out of the end of the handle 1, and then the lower shell 7 obtains the movable space for upward movement, and then the locking block 20 slides along the locking groove 9 and leaves the entrance groove 10, thereby moving the lower shell 7 out of the end of the handle 1, and then remove the mounting plate 22 from the connecting member 5, and finally remove the blade 24 from the mounting plate 22 to thoroughly clean and disinfect all parts of the cutter head.

[0048] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0049] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An electric skin preparation knife, characterized in that: It comprises a knife handle, a knife head mounted on the end of the knife handle, and a locking structure embedded on both sides of the knife handle, wherein the locking structure penetrates the knife handle and cooperates with the knife head to lock the knife handle and the knife head; The cutter head comprises a lower shell and an upper shell, wherein the lower shell is assembled with the upper shell and embedded in the handle and locked by the locking structure; A cutting structure is provided inside the lower shell, and the upper shell and the lower shell are assembled to limit the cutting structure; A driving structure is provided inside the knife handle, a connecting piece rotatably connected to the knife handle is provided on one side of the driving structure, and an output end of the driving structure passes through one end of the connecting piece and drives it to swing; The cutting structure is clamped with the other end of the connecting piece, and the cutting structure and the connecting piece swing synchronously.

2. The electric skin preparation knife according to claim 1, characterized in that: The lower shell body has two symmetrical sides at the rear end thereof respectively provided with locking grooves, the locking grooves are composed of a Z-shaped portion connected with a first-shaped portion, the end opening of the Z-shaped portion is called the slot inlet, the end of the first-shaped portion is called the locking port, and it is a V-shaped structure.

3. The electric skin preparation knife according to claim 1, characterized in that: The upper shell has two symmetrical sides at the rear end thereof respectively provided with movable grooves, and an elastic buckle plate with a V-shaped structure is provided inside the movable groove. One end of the elastic buckle plate is fixedly connected to an inner wall of one side of the movable groove, and the other end of the elastic buckle plate is a free end and has a gap with the inner wall of the other side of the movable groove.

4. The electric skin preparation knife according to claim 1, characterized in that: A pressure plate is provided inside the tail portion of the upper shell body, the pressure plate is fixedly connected to the inner wall and side wall of the upper shell body, and a U-shaped avoidance groove is provided at the bottom of the pressure plate.

5. The electric skin preparation knife according to claim 1, characterized in that: The symmetrical sides of the knife handle are respectively provided with locking holes, and a baffle is fixedly connected inside the locking hole, and the baffle is located on the inner side wall of the knife handle.

6. The electric skin preparation knife according to claim 5, characterized in that: The locking structure comprises a slider, a locking block is fixedly connected to one side of the slider, a blocking piece is fixedly connected to the other side of the slider, and an outer side wall of the blocking piece is provided with anti-slip grooves.

7. The electric skin preparation knife according to claim 6, characterized in that: One end of the slider away from the locking block is fixedly connected with a spring. When the locking structure is installed inside the locking hole, the spring is located outside the baffle and the other end of the spring abuts against the end of the locking hole.

8. The electric skin preparation knife according to claim 1, characterized in that: The cutting structure includes a mounting plate, which is composed of a horizontal plate and an inclined plate. A plurality of mounting spring buckles are fixedly connected to one side of the horizontal plate of the mounting plate. A groove corresponding to the mounting spring buckle is provided on the connecting piece. The mounting plate is embedded in the groove on the connecting piece through the mounting spring buckle and is detachably connected to the connecting piece.

9. The electric skin preparation knife according to claim 8, characterized in that: The bottom of the inclined plate of the mounting plate is located at the opening of the head end of the cutter head, and a clamping block is fixedly connected to the top of the inclined plate of the mounting plate.

10. The electric skin preparation knife according to claim 8, characterized in that: The cutting structure also includes a blade, and a slot is provided on the blade to match the clamping block on the mounting plate. The blade and the mounting plate can be fixed by the clamping block and the slot.

Images