Cutting tool for skin doubling technology in skin grafting operation
By designing a cutting tool for skin grafting surgery, the problems of single function of existing tools and uneven size of the skin are solved, efficient and uniform skin cutting is achieved, and surgical efficiency and effect are improved.
Patent Information
- Application Number
- CN202510115393.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2025-04-25
AI Technical Summary
The existing skin grafting surgical cutting tools have a single function, and it is impossible to cut multiple skin pieces at the same time. The surgical efficiency is low, and it is difficult to ensure the uniform size of the skin pieces, which affects the skin grafting effect.
A cutting tool for skin grafting surgery is designed, including a cutting knife holder, a knife handle, a blade mounting rod and multiple hobs. The hob can adjust the number and clearance as needed to ensure that the cut skin is the same size.
The cutting tool can cut multiple skin pieces at the same time in one operation, improving surgical efficiency, ensuring uniformity of skin pieces quality, strong adaptability, and is suitable for a variety of skin grafting surgery needs.
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Figure CN119867888A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of skin grafting surgery, in particular to a cutting tool used for skin grafting surgery using a double skin technique. Background Art
[0002] In the field of modern medicine, skin grafting is one of the important means of treating severe burns, trauma and skin diseases. MEEK skin grafting technology, as an advanced skin grafting method, has the advantages of improving skin grafting efficiency and skin grafting effect. However, the cutting tools used in MEEK skin grafting are expensive, which brings a heavy economic burden to patients. For patients who need MEEK skin grafting, the high price undoubtedly increases their treatment costs; therefore, the research on cutting tools in the skin grafting process is particularly important.
[0003] There are some shortcomings in the existing skin graft surgery cutting tools. Previous skin graft surgery cutting tools often have a single function and cannot cut multiple skin flaps at the same time, resulting in low surgical efficiency and prolonging the patient's operation time and pain. Moreover, when these tools cut skin flaps, it is difficult to ensure that the size of the skin flaps is uniform, which affects the effect of the skin graft surgery. In addition, the existing cutting tools may not be convenient to operate, and the existing skin graft surgery cutting tools have poor adaptability. They cannot flexibly adjust the number of rollers and the size of the cut skin flaps according to different surgical needs, which limits their application in various skin graft surgeries. Therefore, we have made improvements to this and proposed a cutting tool for double skin technology in skin graft surgery. Summary of the invention
[0004] The purpose of the present invention is to address the problems raised by the existing background technology. In order to achieve the above invention purpose, the present invention provides the following technical solutions: a cutting tool for double skin technology in skin grafting surgery, including a cutting tool holder, a handle is provided on the cutting tool holder, a blade mounting rod is provided on the tool holder, a roller is provided on the blade mounting rod, a battery slot is provided in the handle, a battery is provided in the battery slot, the battery is connected to one end of the power transmission line, the other end of the power transmission line is connected to the cutting motor through a wire connector, the cutting motor is provided with a motor switch button, and the power transmission line passes through the interior of the cutting tool holder.
[0005] As a preferred technical solution of the present invention, a plurality of rolling cutters are provided according to the number of leather pieces to be cut, and the gap between each rolling cutter is 3 mm.
[0006] As a preferred technical solution of the present invention, the blade mounting rod and the tool holder are detachably matched, and a motor housing is provided on the outer surface of the cutting motor, and the motor housing is connected to the cutting tool holder through a connecting annular plate.
[0007] As a preferred technical solution of the present invention, a knife groove is provided on the blade mounting rod, and the hob is embedded in the knife groove.
[0008] As a preferred technical solution of the present invention, the rolling cutter cooperates with the cutting leather cover plate.
[0009] As a preferred technical solution of the present invention, the gap between the cutting groove of the rolling cutter and the cutting leather cover plate is 3 mm.
[0010] A method for using a cutting tool for double skin technology in skin grafting surgery, step 1. Preparation: ensure that the surgical environment meets the requirements of aseptic operation; check the integrity of the cutting tool, confirm that the handle, blade mounting rod, and hob parts are not damaged;
[0011] Step 2. Install the roller: Remove the blade mounting rod from the blade holder; select the corresponding number of rollers according to the number of leather pieces to be cut; insert the roller into the knife groove on the blade mounting rod to ensure that the roller is firmly installed;
[0012] Step 3. Assemble the tool: Reinstall the blade mounting rod of the installed hob onto the tool holder, making sure it is firmly installed;
[0013] Step 4. Adjust the cutter: Make sure the gap between each roller is 3mm to ensure that the cut leather meets the requirements;
[0014] Step 5. Cutting: Prepare the skin area to be cut and ensure that the skin surface is flat;
[0015] Hold the knife handle and match the rolling knife with the cutting leather cover plate, so that the rolling knife rolls along the cutting groove of the cutting leather cover plate to cut; during the cutting process, maintain a uniform force and speed to ensure that the thickness of the cut leather is uniform;
[0016] As a preferred technical solution of the present invention, step 6. completing the cutting: after the cutting is completed, carefully remove the cutting knife from the skin; perform subsequent processing and transplantation operations on the cut skin piece;
[0017] As a preferred technical solution of the present invention, step 7. Cleaning and disinfection: after the operation, the cutting tool is disassembled, and the handle, blade mounting rod, and hob parts are cleaned and disinfected respectively for next use;
[0018] As a preferred technical solution of the present invention, the cleaning in step 7 uses an enzyme-containing cleaning agent at a temperature of 30-40°C to ultrasonically clean each component for 10-15 minutes to remove blood stains, tissues and dirt on the surface;
[0019] Disinfection is carried out by high temperature and high pressure sterilization, with a sterilization temperature of 132-134°C, a sterilization time of 10-15 minutes, and a pressure of 205.8kPa; or by ethylene oxide sterilization, with an ethylene oxide concentration of 600-1000mg / L, a sterilization time of 4-6 hours, and a humidity of 40%-60%; the sterilized parts should be sterilely packaged for next use.
[0020] Compared with the prior art, the present invention has the following beneficial effects:
[0021] 1. Improve surgical efficiency: The cutting tool is equipped with multiple rollers, which can be adjusted according to the number of skin flaps to be cut. It can cut multiple skin flaps at the same time in one operation, saving surgical time and improving surgical efficiency. It is powered by a battery to drive the cutting motor, reducing the doctor's operating burden and improving surgical efficiency.
[0022] 2. Ensure the quality of the skin graft: The gap between the rollers and the gap between the rollers and the cutting groove of the cutting skin graft cover are both 3mm, which can ensure the consistency of the size of the cut skin graft, improve the quality of the skin graft, and facilitate the successful implementation of the skin grafting operation.
[0023] 3. Easy to operate: The design of the knife takes ergonomics into consideration, and it is convenient to operate by holding the knife handle. At the same time, the blade mounting rod and the knife holder are disassembled for easy replacement and maintenance, which improves the flexibility of the operation.
[0024] 4. Aseptic operation guarantee: After the operation, all parts of the tool can be thoroughly cleaned and disinfected. A variety of disinfection methods, such as high temperature and high pressure sterilization or ethylene oxide sterilization, can effectively kill germs and ensure the sterile state when used next time, reducing the risk of surgical infection.
[0025] 5. Strong adaptability: The number of rollers and the size of the cut skin flap can be adjusted according to different surgical needs. It has strong adaptability and can meet the requirements of various skin grafting surgeries. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 A schematic diagram of the structure provided by the present invention;
[0027] Figure 2 A schematic diagram of a local structure provided by the present invention;
[0028] Figure 3 A schematic diagram of a local structure provided by the present invention;
[0029] Figure 4 A schematic diagram of the local structure provided by the present invention.
[0030] 1. Cutting knife holder; 2. Knife handle; 3. Blade mounting rod; 301. Hob; 4. Battery; 5. Transmission line; 6. Wire connector; 7. Cutting motor; 8. Motor housing; 9. Motor switch button; 10. Connecting ring plate; DETAILED DESCRIPTION
[0031] To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.
[0032] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. It should be noted that the embodiments of the present invention and the features and technical solutions in the embodiments can be combined with each other without conflict. It should be noted that similar numbers and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0033] Example 1: Please refer to Figure 1-Figure 4 A cutting tool for skin grafting surgery using double skin technology includes a cutting tool holder 1, a tool handle 2 is provided on the cutting tool holder 1, a blade mounting rod 3 is provided on the tool holder, and a roller 301 is provided on the blade mounting rod 3. A battery slot is provided in the tool handle 2, a battery 4 is provided in the battery slot, the battery 4 is connected to one end of a power line 5, the other end of the power line 5 is connected to a cutting motor 7 through a wire connector 6, a motor switch button 9 is provided on the cutting motor 7, a motor housing 8 is provided on the outer surface of the cutting motor 7, and the motor housing 8 is connected to the cutting tool holder 1 through a connecting annular plate 10.
[0034] The number of the rolling cutters 301 is set according to the number of skin pieces to be cut, and the gap between each rolling cutter 301 is 3 mm.
[0035] The blade mounting rod 3 is disassembled and matched with the blade holder. The blade mounting rod 3 is provided with a knife groove, and the roller 301 is embedded in the inside of the knife groove. The roller 301 is matched with the cutting leather cover plate. The gap between the cutting groove of the roller 301 and the cutting leather cover plate is 3mm.
[0036] When performing skin grafting surgery, the doctor holds the knife handle 2 and performs cutting work by operating the cutting knife holder 1. The blade mounting rod 3 on the knife holder is detachably mounted on the knife holder, which is convenient for replacement and maintenance.
[0037] A knife groove is provided on the blade mounting rod 3, and a plurality of rollers 301 are embedded in the knife groove. A corresponding number of rollers 301 are provided according to the number of skin flaps to be cut, and a gap of 3 mm is maintained between each roller 301. Such a design can cut multiple skin flaps at the same time in one operation, thereby improving the efficiency of the operation.
[0038] When cutting, place the cutting skin flap cover plate on the skin part that needs to be cut. The cutting skin flap cover plate is provided with a cutting groove, and the roller 301 cooperates with the cutting skin flap cover plate. The gap between the cutting groove of the roller 301 and the cutting skin flap cover plate is 3mm. The doctor holds the knife handle 2 and installs the battery 4 in the battery slot in the knife handle 2. The battery 4 transmits electricity to the wire connector 6 through the transmission line 5, thereby providing energy for the cutting motor 7. When the motor switch button 9 is pressed, the cutting motor 7 starts to work. The rotation of the cutting motor 7 will drive the roller 301 on the blade mounting rod 3 connected thereto to rotate. In the skin grafting operation, the user holds the knife handle 2 and contacts the rotating roller 301 with the skin grafting part that needs to be cut. The skin is cut by the rotation of the roller 301 to complete the cutting operation in the double skin technology.
[0039] During the operation, the doctor pushes the cutting blade holder 1 to make the roller blade 301 roll along the cutting groove of the cutting skin flap cover plate, thereby cutting the skin into the required skin flap. Since the gap between the roller blades 301 and the gap between the roller blade 301 and the cutting groove of the cutting skin flap cover plate are both 3 mm, the size and thickness of the cut skin flap can be guaranteed to meet the surgical requirements, providing suitable skin materials for skin grafting surgery.
[0040] Workflow of the cutting tool for skin grafting surgery: Preparation: Determine the number of skin slices to be cut according to the needs of the surgery, and select a cutting tool with a corresponding number of rollers 301. Check whether the various parts of the cutting tool are intact, ensure that the blade mounting rod 3 is firmly connected to the tool holder, and the roller 301 is embedded in the tool groove without looseness.
[0041] Install the blade mounting rod 3: disassemble and mate the blade mounting rod 3 with the blade holder, and firmly install the blade mounting rod 3 on the blade holder.
[0042] Place the cut skin cover: Place the cut skin cover at the site where the skin needs to be cut, and ensure that the cover is positioned accurately.
[0043] Perform cutting operation: the doctor holds the knife handle 2 and installs the battery 4 in the battery slot in the knife handle 2. The battery 4 transmits electricity to the wire connector 6 through the transmission line 5, thereby providing energy for the cutting motor 7. When the motor switch button 9 is pressed, the cutting motor 7 starts to work. The rotation of the cutting motor 7 will drive the roller 301 on the blade mounting rod 3 connected to it to rotate. In the skin grafting operation, the user holds the knife handle 2 and contacts the rotating roller 301 with the skin grafting part to be cut. The skin is cut by the rotation of the roller 301 to complete the cutting operation in the double skin technology. Since the gap between each roller 301 is 3mm, the gap between the roller 301 and the cutting groove of the cutting skin flap cover is also 3mm. During the rolling process of the roller 301, the skin will be cut into skin flaps of uniform thickness and size.
[0044] Finish cutting: When the cutting is finished, stop pushing the cutting blade holder 1 and move the cutting blade away from the cutting part; remove the used blade mounting rod 3, clean and disinfect it for next use. Clean up the cutting site and organize the surgical instruments
[0045] Example 2: A method for using a cutting tool for double skin technique in skin grafting surgery, step 1. Preparation: ensure that the surgical environment meets the requirements of aseptic operation; check the integrity of the cutting tool, confirm that the handle 2, the blade mounting rod 3, and the hob 301 are not damaged;
[0046] Step 2. Install the roller cutter 301: remove the blade mounting rod 3 from the cutter holder; select a corresponding number of roller cutters 301 according to the number of leather pieces to be cut; insert the roller cutter 301 into the cutter groove on the blade mounting rod 3 to ensure that the roller cutter 301 is firmly installed;
[0047] Step 3. Assemble the tool: reinstall the blade mounting rod 3 with the hob 301 installed on the tool holder to ensure that it is firmly installed;
[0048] Step 4. Adjust the cutter: confirm that the gap between each rolling cutter 301 is 3 mm to ensure that the cut leather piece meets the requirements;
[0049] Step 5. Perform cutting: prepare the skin area to be cut and ensure that the skin surface is flat; the doctor holds the knife handle 2 and installs the battery 4 in the battery slot in the knife handle 2. The battery 4 transmits electricity to the wire connector 6 through the transmission line 5, thereby providing energy for the cutting motor 7. When the motor switch button 9 is pressed, the cutting motor 7 starts to work. The rotation of the cutting motor 7 will drive the roller 301 on the blade mounting rod 3 connected thereto to rotate. In the skin grafting operation, the user holds the knife handle 2 and brings the rotating roller 301 into contact with the skin grafting area to be cut. The skin is cut by the rotation of the roller 301 to complete the cutting operation in the double skin technique;
[0050] Step 6. Complete the cutting: After the cutting is completed, carefully remove the cutting knife from the skin; perform subsequent processing and transplantation operations on the cut skin piece;
[0051] Step 7. Cleaning and disinfection: After the operation, the cutting tool is disassembled, and the handle 2, the blade mounting rod 3, and the hob 301 are cleaned and disinfected respectively for next use;
[0052] Cleaning in step 7 uses an enzyme-containing cleaning agent at a temperature of 30-40°C to ultrasonically clean each component for 10-15 minutes to remove blood, tissue and dirt on the surface;
[0053] Disinfection is carried out by high temperature and high pressure sterilization, with a sterilization temperature of 132-134°C, a sterilization time of 10-15 minutes, and a pressure of 205.8kPa; or by ethylene oxide sterilization, with an ethylene oxide concentration of 600-1000mg / L, a sterilization time of 4-6 hours, and a humidity of 40%-60%; the sterilized parts should be sterilely packaged for next use.
[0054] When performing skin grafting surgery, the first thing to do is to ensure that the surgical environment meets the requirements of aseptic operation to ensure the successful implementation of the surgery. During the preparation work, the cutting tool is checked to ensure that its various parts are not damaged to ensure the normal use of the tool.
[0055] Next, the blade mounting rod 3 is removed from the knife holder, and a suitable number of roller cutters 301 are selected according to the number of leather pieces to be cut, and are firmly embedded in the knife grooves of the blade mounting rod 3. Then, the blade mounting rod 3 with the roller cutters 301 installed is reinstalled on the knife holder.
[0056] After the cutter is assembled, the gap between the rolling cutters 301 is adjusted to 3 mm, so as to ensure that the cut leather piece meets the requirements.
[0057] When cutting, first prepare the skin part to be cut and make its surface flat. Hold the knife handle 2, match the rolling knife 301 with the cutting skin cover plate, and roll the rolling knife 301 along the cutting groove of the cover plate. During the cutting process, maintain a uniform force and speed, so that the thickness of the cut skin can be uniform.
[0058] After the incision is completed, the knife is carefully removed from the skin and the cut skin graft is subsequently processed and transplanted.
[0059] After the operation, the cutting tool is cleaned and disinfected. First, use an enzyme-containing cleaning agent at a temperature of 30-40°C to ultrasonically clean each component for 10-15 minutes to effectively remove blood, tissue and dirt on the surface. Disinfection can be carried out by high temperature and high pressure sterilization at a sterilization temperature of 132-134°C, a sterilization time of 10-15 minutes, and a pressure of 205.8kPa; or by ethylene oxide sterilization, with an ethylene oxide concentration of 600-1000mg / L, a sterilization time of 4-6 hours, and a humidity of 40%-60%. The disinfected components are sterile packaged for next use.
[0060] Example 3: In a strictly disinfected operating room, a skin grafting operation is prepared. The surgical team ensures that the surgical environment meets the aseptic operation standards, including thorough cleaning and disinfection of the operating room, and the surgical staff wears sterile surgical gowns and gloves. Carefully check the cutting tool used for the skin grafting operation to confirm that the handle 2, blade mounting rod 3, and hob 301 components are not damaged in any way to ensure the integrity and normal function of the tool.
[0061] Install the roller blade 301: Carefully remove the blade mounting rod 3 from the blade holder. Select the corresponding number of roller blades 301 according to the number of skin flaps to be cut in this operation. Firmly insert the roller blade 301 into the blade groove on the blade mounting rod 3, and check to ensure that the roller blade 301 is firmly installed and will not loosen during use.
[0062] Assemble the tool: accurately reinstall the blade mounting rod 3 with the installed hob 301 onto the tool holder, and tighten the fixing screws firmly to ensure that the installation is firm without shaking or looseness. The gap between each hob 301 is 3mm, and this gap setting can ensure that the cut skin piece meets the specifications and quality required by the operation.
[0063] Prepare the skin area to be incised thoroughly, clean the skin surface with disinfectant, remove dirt and impurities, and ensure that the skin surface is flat without wrinkles or bulges.
[0064] The doctor holds the knife handle 2 and installs the battery 4 in the battery slot in the knife handle 2. The battery 4 transmits power to the wire connector 6 through the transmission line 5, thereby providing energy for the cutting motor 7. When the motor switch button 9 is pressed, the cutting motor 7 starts to work. The rotation of the cutting motor 7 drives the roller 301 on the blade mounting rod 3 connected thereto to rotate. In the skin grafting operation, the user holds the knife handle 2 and brings the rotating roller 301 into contact with the skin grafting part to be cut. The skin is cut by the rotation of the roller 301 to complete the cutting operation in the double skin technique.
[0065] During the cutting process, the doctor maintains a uniform force and speed and operates carefully to ensure that the thickness of the cut skin graft is uniform and avoid inconsistent thickness.
[0066] When the cutting is completed, the doctor carefully removes the cutting knife from the skin to avoid causing additional damage to the skin.
[0067] The cut skin grafts are immediately processed and transplanted to ensure their activity and quality.
[0068] After the operation is completed, the cutting tool is disassembled and the handle 2, the blade mounting rod 3 and the hob 301 are placed separately.
[0069] Each component was ultrasonically cleaned using an enzyme-containing cleaning agent at a temperature of 35°C for 12 minutes to effectively remove blood, tissue and dirt on the surface.
[0070] In the sterilization phase, high temperature and high pressure sterilization method is selected, and the parts are placed in the sterilization equipment, and the sterilization temperature is set to 133°C, the sterilization time is set to 12 minutes, and the pressure is set to 205.8 kPa. After the sterilization is completed, the sterilized parts are sterile packaged and properly stored for the next use.
[0071] During the entire skin grafting operation, strictly follow the above-mentioned instructions for using the cutting tool to ensure the smooth progress of the operation and the safety of the patient.
[0072] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.
Claims
1. A cutting tool for skin grafting surgery using double skin technology, comprising a cutting tool holder (1), characterized in that: The cutting blade holder (1) is provided with a blade handle (2), the blade holder is provided with a blade mounting rod (3), the blade mounting rod (3) is provided with a roller blade (301), the blade handle (2) is provided with a battery slot, a battery (4) is provided in the battery slot, the battery (4) is connected to one end of a power transmission line (5), the other end of the power transmission line (5) is connected to a cutting motor (7) via a wire connector (6), and the cutting motor (7) is provided with a motor switch button (9).
2. A cutting tool for skin grafting surgery using double skin technique according to claim 1, characterized in that: The number of the rolling cutters (301) is set to a plurality of rolling cutters (301) according to the number of skin pieces to be cut, and the gap between each rolling cutter (301) is 3 mm.
3. A cutting tool for skin grafting surgery using double skin technique according to claim 2, characterized in that: The blade mounting rod (3) is detachably matched with the blade holder, and a motor housing (8) is provided on the outer surface of the cutting motor (7). The motor housing (8) is connected to the cutting blade holder (1) via a connecting annular plate (10).
4. A cutting tool for skin grafting surgery according to claim 3, characterized in that: The blade mounting rod (3) is provided with a knife groove, and the rolling cutter (301) is embedded in the knife groove.
5. A cutting tool for skin grafting surgery using double skin technique according to claim 4, characterized in that: The rolling cutter (301) cooperates with the cutting leather cover plate.
6. A cutting tool for skin grafting surgery using double skin technique according to claim 5, characterized in that: The gap between the cutting groove of the rolling cutter (301) and the cutting leather cover plate is 3 mm.
7. The method for using a cutting tool for skin grafting surgery according to claim 6, characterized in that: Step 1. Preparation: Ensure that the surgical environment meets the requirements of aseptic operation; check the integrity of the cutting tool and confirm that the handle (2), blade mounting rod (3), and hob (301) are not damaged; Step 2. Install the rolling cutter (301): remove the blade mounting rod (3) from the cutter holder; select a corresponding number of rolling cutters (301) according to the number of leather pieces to be cut; insert the rolling cutter (301) into the cutter groove on the blade mounting rod (3) to ensure that the rolling cutter (301) is firmly installed; Step 3. Assemble the tool: reinstall the blade mounting rod (3) with the installed hob (301) onto the tool holder, ensuring that it is firmly installed; Step 4. Adjust the cutter: confirm that the gap between each rolling cutter (301) is 3 mm to ensure that the cut leather piece meets the requirements; Step 5. Cutting: Prepare the skin area to be cut and ensure that the skin surface is flat; The knife handle (2) is held in the hand, and the rolling knife (301) is matched with the cutting leather cover plate, so that the rolling knife (301) rolls and cuts along the cutting groove of the cutting leather cover plate; during the cutting process, the force and speed are maintained at a constant speed to ensure that the thickness of the cut leather is uniform.
8. The method for using a cutting tool for skin grafting surgery according to claim 7, characterized in that: Step 6. Complete the cutting: After the cutting is completed, carefully remove the cutting knife from the skin; perform subsequent processing and transplantation operations on the cut skin piece.
9. The method for using a cutting tool for skin grafting surgery according to claim 8, characterized in that: Step 7. Cleaning and disinfection: After the operation is completed, the cutting tool is disassembled, and the handle (2), the blade mounting rod (3), and the hob (301) are cleaned and disinfected respectively for next use.
10. The method for using a cutting tool for skin grafting surgery according to claim 9, characterized in that: The cleaning in step 7 is to ultrasonically clean each component using an enzyme-containing cleaning agent at a temperature of 30-40° C. for 10-15 minutes to remove blood, tissue and dirt on the surface; Disinfection is carried out by high temperature and high pressure sterilization, with a sterilization temperature of 132-134°C, a sterilization time of 10-15 minutes, and a pressure of 205.8kPa; or by ethylene oxide sterilization, with an ethylene oxide concentration of 600-1000mg / L, a sterilization time of 4-6 hours, and a humidity of 40%-60%; the sterilized parts should be sterilely packaged for next use.