Skin preparation knife with lubricating function

Abstract

The utility model discloses a skin preparation knife with a lubricating function, which comprises a knife head and a knife handle, the knife head is detachably connected with the lower end of the knife handle, the knife handle comprises an upper handle and a lower handle, the upper handle is in threaded connection with the lower handle, a storage part for storing lubricating liquid is arranged in the lower handle, and a driving part for pushing and extruding the lubricating liquid is arranged in the upper handle. A guide column used for guiding lubricating liquid is arranged at the joint of the tool bit and the tool handle and attached to the lower end of the storage part. The scalpel has the advantages that the scalpel handle is divided into the upper handle and the lower handle, the liquid storage cavity used for storing lubricating liquid is arranged in the lower handle, the push rod used for pushing and extruding the lubricating liquid is arranged in the upper handle, the blade and the skin of a patient can be lubricated conveniently, and operation is easy and convenient; meanwhile, the lubricating liquid flows through the cutting edge of the blade after being guided and drips at the operation position, the blade can be lubricated, the skin of a patient can also be lubricated, and the pain feeling during skin preparation is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a skin preparation knife with a lubricating function. Background Art

[0002] A dermatome is a tool used to prepare the patient's skin before surgery. Before surgery, the hair in the area to be operated on is removed, and proper cleaning is required after removal. This operation is to help the doctor obtain a better view during the operation and also reduce the chance of infection.

[0003] To prevent the patient's skin from being scratched by the dermaplaning knife, lubricant is applied to the pre-operative site before hair removal. This protects the skin from being scratched by the dermaplaning knife while also cleaning the skin. Usually, soapy liquid is applied with sterile gauze, which takes a long time, prolonging the preoperative preparation time and hindering the surgical procedure. Utility Model Content

[0004] The technical problem to be solved by the present utility model is that the existing skin preparation knife needs to lubricate the pre-operative position in advance before use, which is relatively cumbersome to operate; in order to solve the problem, a skin preparation knife with a lubricating function is proposed, comprising a knife head and a knife handle, the lower ends of the knife head and the knife handle are detachably connected, the knife handle comprises an upper handle and a lower handle, the upper handle and the lower handle are threadedly connected, a storage part for storing lubricating liquid is provided in the lower handle, a driving part for pushing and squeezing out the lubricating liquid is provided in the upper handle, a guide column for guiding the lubricating liquid is provided at the connection between the knife head and the knife handle, and the guide column is in contact with the lower end of the storage part.

[0005] The technical solution of the present invention is to provide a knife handle structure in which the knife handle is divided into an upper handle and a lower handle, wherein a liquid storage cavity for storing lubricating liquid is provided in the lower handle, and a push rod for pushing out the lubricating liquid is provided in the upper handle, thereby facilitating lubrication of the blade and the patient's skin, and the operation is simple and convenient; by providing a guide groove structure, the lubricating liquid is guided so that the lubricating liquid flows through the cutting edge of the blade and then drips onto the surgical site, thereby lubricating both the blade and the patient's skin, and reducing pain during skin preparation.

[0006] The preferred technical solution of the utility model is that the cutter head includes a shell, a blade and a cutter seat, the shell is located at the lower end, the blade is located between the shell and the cutter seat, and a fixing stud is provided at the upper end of the shell. The fixing stud passes through the blade and the cutter seat in turn and is connected to the fixing nut. Through the threaded connection of the fixing nut and the fixing stud, the shell, the blade and the cutter seat are tightly fitted to complete the fixation.

[0007] In the preferred technical solution of the present invention, a fixed seat is provided in the middle of the upper end of the tool holder, the fixed seat is hollow and a thread is provided on the inner wall, the guide column is provided at the upper end of the outer shell, the guide column is located in the middle of the fixed seat, the fixed seat is used to connect with the tool handle, and the guide column is used to guide the lubricating fluid.

[0008] In the preferred technical solution of the present invention, the middle part of the guide column is hollow, the leakage hole is located at the lower end of the guide column, there are two leakage holes, and the connecting line of the two leakage holes is perpendicular to the blade of the blade. The lubricating liquid flows down through the guide column, and then flows from the leakage holes to the blades on both sides and then drips onto the patient's skin, thereby achieving the purpose of lubricating the blade and the patient's skin at the same time.

[0009] In a preferred embodiment of the technical solution of the present invention, the lower end of the leakage hole is flush with the upper surface of the blade, and the lubricating liquid can only flow out from between the blade and the knife seat.

[0010] In the preferred technical solution of the present invention, a guide groove is provided on the lower surface of the knife seat, one end of the guide groove is connected to the leakage hole, and the other end is flush with the outer wall of the knife seat. The guide groove is used to guide the lubricating liquid so that the lubricating liquid can lubricate the blade edge and the patient's skin.

[0011] In a preferred embodiment of the technical solution of the present invention, the interior of the upper handle is hollow, and slide grooves are provided on both sides of the upper handle. The slide grooves are connected to the hollow of the upper handle, and the slide grooves facilitate sliding of the driving part to push the lubricating liquid out.

[0012] The preferred technical solution of the utility model is that the driving part includes a push rod and a pressure spring. The push rod is arranged in the middle of the upper handle. The top end of the push rod extends outward with a protrusion, and the protrusion is located in the slide groove. The pressure spring is sleeved on the push rod. The pressure spring is respectively in contact with the protrusion and the inner wall of the upper handle. The push rod is used to push out the lubricating liquid, and the pressure spring is used to reset the push rod after completing its work.

[0013] In the preferred technical solution of the present invention, the lower handle is threadedly connected to the fixing seat, and after the lower handle is connected, it fits tightly with the guide column. When the lubricating liquid is pushed out, it is guided by the guide column and then flows through the guide groove for lubrication.

[0014] According to the preferred technical solution of the present invention, the storage portion includes a liquid storage chamber and a piston block. The piston block is arranged in the liquid storage chamber and is located at the upper end of the liquid storage chamber. The lower end of the liquid storage chamber is in contact with the guide column. The push rod pushes the piston downward to push out the lubricating liquid in the liquid storage chamber.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The technical solution of the present invention is to provide a knife handle structure in which the knife handle is divided into an upper handle and a lower handle, wherein a liquid storage cavity for storing lubricating liquid is provided in the lower handle, and a push rod for pushing out the lubricating liquid is provided in the upper handle, thereby facilitating lubrication of the blade and the patient's skin, and the operation is simple and convenient; by providing a guide groove structure, the lubricating liquid is guided so that the lubricating liquid flows through the cutting edge of the blade and then drips onto the surgical site, thereby lubricating both the blade and the patient's skin, and reducing pain during skin preparation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of a skin preparation knife with lubrication function;

[0018] Figure 2 This is an exploded schematic diagram of the structure of a skin preparation knife head with lubrication function;

[0019] Figure 3 It is a schematic diagram of a skin preparation knife holder with lubrication function from a bottom view;

[0020] Figure 4 This is a schematic cross-sectional view of a skin preparation knife handle with a lubricating function;

[0021] Among them: 1-cutter head, 11-housing, 12-blade, 13-cutter seat, 14-fixing nut, 15-fixing stud, 16-fixing seat, 17-guide column, 18-leak hole, 19-guide groove, 2-handle, 21-upper handle, 22-slide groove, 23-push rod, 24-pressure spring, 25-lower handle, 26-liquid storage chamber, 27-piston block. DETAILED DESCRIPTION

[0022] The following is a combination of the appended examples of the present invention Figure 1-4 , the technical solutions in the embodiments of the present utility model are described in detail. Example 1

[0023] like Figure 1-4 As shown, the utility model is a skin preparation knife with a lubricating function, comprising a knife head 1 and a knife handle 2.

[0024] The cutter head 1 includes a shell 11, a blade 12 and a cutter seat 13 from bottom to top. The shell 11 is located at the lower end, and the blade 12 is located between the shell 11 and the cutter seat 13. The upper surface of the shell 11 is fixedly connected to a fixing stud 15, which passes through the blade 12 and the cutter seat 13 in turn and extends out of the upper surface of the cutter seat 13. The fixing nut 14 is threadedly connected to the fixing stud 15, squeezing the three together tightly.

[0025] The middle of the upper surface of the knife seat 13 is fixedly connected to the fixing seat 16 . The middle of the fixing seat 16 is hollow and passes through the knife seat 13 . The hollow inner wall of the fixing seat 16 is provided with threads for connecting with the lower handle of the knife handle 2 .

[0026] The guide post 17 is fixedly connected to the upper surface of the housing 11 and is located in the hollow portion of the fixing seat 16 .

[0027] The middle part of the guide column 17 is hollow and is used to pass the lubricating liquid. A leakage hole 18 is provided at the lower end of the guide column 17. The leakage hole 18 is connected to the hollow of the guide portion 17. There are two leakage holes 18. The connecting line of the two leakage holes 18 is perpendicular to the blade 12. The lubricating liquid passes through the guide column 17, flows out of the leakage hole 18, passes through the blade 12, and flows onto the patient's skin surface, thereby lubricating the blade 12 and the patient's skin.

[0028] The lower end of the leakage hole 18 is flush with the upper surface of the blade 12, so the lubricating liquid can only flow out from between the blade 12 and the knife seat 13, and the lower surface of the knife seat 13 is provided with a guide groove 19 for guiding the lubricating liquid. One end of the guide groove 19 is connected to the leakage hole 18, and the other end is connected to a transverse groove. The transverse groove is connected to the outer wall of the knife seat 13 through multiple short grooves, so that the lubricating liquid can fully lubricate the cutting edge of the blade.

[0029] The cutter head 1 has a simple structure and is easy to install. The cutter head 1 and the lower end of the handle 2 are threadedly connected, which is easy to operate.

[0030] The handle 2 includes an upper handle 21 and a lower handle 25 , which are fixedly connected by threads. A storage portion for storing lubricating liquid is installed in the lower handle 25 , and a driving portion for pushing and squeezing the lubricating liquid is installed in the upper handle 21 .

[0031] The interior of the upper handle 21 is hollow, and slide grooves 22 are provided on both sides of the upper handle 21. The slide grooves 22 are connected to the hollow of the upper handle 21. The driving part includes a push rod 23 and a pressure spring 24. The push rod 23 is installed in the middle part of the upper handle 21. The top of the push rod 23 has protrusions extending outward on both sides. The protrusions are located in the slide grooves 22 and can slide up and down along the slide grooves 22. The pressure spring 24 is sleeved on the push rod 23, and the pressure spring 24 is respectively in contact with the protrusions and the inner wall of the upper handle 21.

[0032] The push rod 23 can be pushed downward by the projection to push out the lubricating liquid. At this time, the pressure spring 24 is compressed. When the lubricating liquid is pushed out, the projection is released and the pressure spring 24 causes the push rod 23 to reset.

[0033] The lower end of the lower handle 25 is threadedly connected to the fixed seat 16. The storage part inside the lower handle 25 includes a liquid storage chamber 26 and a piston block 27. The piston block 27 is slidably connected in the liquid storage chamber 26 and is located at the upper end of the liquid storage chamber 26. The lower end of the liquid storage chamber 26 is in contact with the guide column 17.

[0034] The upper handle 21 and the lower handle 25 are separated. The upper handle 21 does not contact the lubricant and can be recycled, saving resources and reducing medical costs. The lower handle 25 can have a variety of specifications. The appropriate specification can be selected according to the area of ​​the patient's skin preparation position to ensure that the amount of lubricant is sufficient to lubricate the blade 12 and the patient's skin.

[0035] The method of using a skin preparation knife with a lubricating function in this embodiment is as follows:

[0036] According to the area of ​​the patient's skin preparation position, a lower handle 25 of appropriate specifications is selected, the upper handle 21 and the lower handle 25 are connected by threads, the blade 12 and the knife seat 13 are passed through the fixing stud 15 in sequence, and then the fixing nut 14 is threadedly connected to the fixing stud 15, so that the shell 11, the blade 12 and the knife seat 13 are tightly fitted to complete the fixation of the cutter head 1, and then the lower handle 25 of the knife handle 2 is connected to the fixing seat 16 of the cutter head 1 by threads so that the two are tightly fixed. By pushing the protrusion downward, the pressure spring 24 is compressed, and the push rod 23 moves downward, pushing the piston block 27 to move downward, squeezing the lubricating fluid from the liquid storage chamber 26, flowing through the guide column 17, and out of the leakage hole 18 at its bottom. It is guided by the guide groove 19 to flow through the blade of the blade 12 and then drips onto the position where the patient needs skin preparation, completing lubrication for subsequent skin preparation operations. Example 2

[0037] Compared with Example 1, the structure of the cutter head 1 in this embodiment is the same, the upper handle 21 and the lower handle 25 of the handle 2 are an integrated structure, the lower end of the push rod 23 and the piston block 27 are connected to each other, and the pressure spring 24 is eliminated.

[0038] The structure of the tool handle 2 is simpler. In the initial state, the piston block 27 is located at the lower end of the liquid storage chamber 26. By pushing the protrusion upward, the piston block 27 moves upward, the liquid storage chamber 26 sucks in the lubricating liquid, and then connects to the tool head 1.

[0039] Compared with Example 1, the device in this embodiment is a disposable item as a whole and is easier to use. However, medical personnel need to determine the amount of lubricating liquid to be introduced based on their own experience to fully lubricate the cutting edge of the blade 12 and the patient's skin.

[0040] The method of using a skin preparation knife with a lubricating function in this embodiment is as follows:

[0041] The blade 12 and the knife seat 13 are then threadedly connected to each other through the fixing nut 14 so that the shell 11, the blade 12 and the knife seat 13 are tightly fitted together to complete the fixation of the knife head 1. Then, the knife handle 2 is connected to the fixing seat 16 of the knife head 1 through threads so that the two are tightly fixed. By pushing the protrusion downward, the push rod 23 pushes the piston block 27 downward, squeezing the lubricating fluid out of the liquid storage chamber 26, flowing through the guide column 17, and out of the leakage hole 18 at its bottom. It is guided by the guide groove 19 to flow through the cutting edge of the blade 12 and then drips onto the position where the patient needs skin preparation. The amount of lubricating fluid flowing out is controlled according to experience, and lubrication is completed for subsequent skin preparation operations.

[0042] The above embodiments are only for illustrating the technical idea of ​​the present invention and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention shall fall within the protection scope of the present invention.

Claims

1. A skin preparation knife with a lubricating function, comprising a knife head (1) and a knife handle (2), wherein the lower ends of the knife head (1) and the knife handle (2) are detachably connected, and characterized in that: The knife handle (2) comprises an upper handle (21) and a lower handle (25), the upper handle (21) and the lower handle (25) being threadedly connected, a storage portion for storing lubricating liquid being provided in the lower handle (25), a driving portion for pushing and squeezing out the lubricating liquid being provided in the upper handle (21), a guide column (17) for guiding the lubricating liquid being provided at the connection between the cutter head (1) and the knife handle (2), and the guide column (17) being in contact with the lower end of the storage portion.

2. The skin preparation knife with lubrication function according to claim 1, characterized in that: The cutter head (1) comprises a housing (11), a blade (12) and a cutter seat (13), wherein the housing (11) is located at the lower end, and the blade (12) is located between the housing (11) and the cutter seat (13). A fixing stud (15) is provided at the upper end of the housing (11), and the fixing stud (15) passes through the blade (12) and the cutter seat (13) in sequence and is connected to the fixing nut (14).

3. The skin preparation knife with lubrication function according to claim 2, characterized in that: A fixing seat (16) is provided in the middle of the upper end of the knife seat (13), the fixing seat (16) is hollow and has a thread provided on the inner wall, and the guide column (17) is provided at the upper end of the housing (11), and the guide column (17) is located in the middle of the fixing seat (16).

4. The skin preparation knife with lubrication function according to claim 2, characterized in that: The middle of the guide column (17) is hollow, and the leakage hole (18) is located at the lower end of the guide column (17). There are two leakage holes (18), and the connecting line of the two leakage holes (18) is perpendicular to the blade of the blade (12).

5. The skin preparation knife with lubrication function according to claim 4, characterized in that: The lower end of the leakage hole (18) is flush with the upper surface of the blade (12).

6. The skin preparation knife with lubrication function according to claim 4, characterized in that: A guide groove (19) is provided on the lower surface of the knife seat (13), one end of the guide groove (19) is communicated with the leak hole (18), and the other end is flush with the outer wall of the knife seat (13).

7. The skin preparation knife with lubrication function according to claim 1, characterized in that: The interior of the upper handle (21) is hollow, and chute grooves (22) are provided on both sides of the upper handle (21), and the chute grooves (22) are communicated with the hollow interior of the upper handle (21).

8. The skin preparation knife with lubrication function according to claim 7, characterized in that: The driving part includes a push rod (23) and a pressure spring (24). The push rod (23) is arranged in the middle of the upper handle (21). The top end of the push rod (23) extends outward to form a protrusion, which is located in the slide groove (22). The pressure spring (24) is sleeved on the push rod (23). The pressure spring (24) is respectively in contact with the protrusion and the inner wall of the upper handle (21).

9. The skin preparation knife with lubrication function according to claim 3, characterized in that: The lower handle (25) is threadedly connected to the fixing seat (16).

10. The skin preparation knife with lubrication function according to claim 1, characterized in that: The storage portion comprises a liquid storage cavity (26) and a piston block (27). The piston block (27) is arranged in the liquid storage cavity (26) and located at the upper end of the liquid storage cavity (26). The lower end of the liquid storage cavity (26) is in contact with the guide column (17).

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