Slicer for assisting Mohs surgery

Abstract

The invention discloses a slicer for assisting a Morse operation, and relates to the technical field of Morse operation assistance. The slicer comprises a connecting mechanism, a placing mechanism is slidably arranged at the front end of the connecting mechanism, control mechanisms are hinged to the two sides of the connecting mechanism, a cutting mechanism is fixedly arranged on the surfaces of the two control mechanisms, the cutting mechanism comprises a top plate, and a plurality of cutter grooves are formed in the bottom surface of the top plate; two mounting shells are slidably arranged in each cutter groove, mounting grooves are formed in the surfaces of the opposite sides of the mounting shells in pairs, and a plurality of mounting columns are fixedly arranged on the surfaces of the opposite sides of the mounting grooves in pairs; and cutter bodies are clamped on the surfaces of the opposite sides of the multiple mounting grooves in pairs through mounting columns. A structure that ten cutting edges are combined side by side is arranged in the cutting mechanism, so that slice tissues cut in a Mohs operation can be divided into a plurality of pieces or even dozens of pieces of tissues at a time, and the slicing process is uniformly and efficiently completed in batches.

Description

Technical Field

[0001] The invention relates to the technical field of surgical assistance, in particular to a slicer for assisting Mohs surgery. Background Art

[0002] Mohs surgery, also known as Mohs micrographic surgery (MMS), is a surgical method invented by American doctor Frederid Mohs. It is a surgical method that completely traces and observes the cut tissue under a microscope, thereby ensuring the complete removal of tumor tissue and accurately resecting the margin, thereby maximizing the preservation of normal tissue. It is the gold standard for the treatment of single-foci continuous invasive skin malignancies and has become the standard treatment for many skin malignancies (such as squamous cell carcinoma and basal cell carcinoma). This surgical process can be divided into the following steps: 1. Removal of most of the tumor tissue visible to the naked eye; 2. Then further use a scalpel to remove a thin layer of normal tissue, and cut it into 2*2cm small pieces of tissue, map it, and perform a microscopic examination (this is the microscopic tracing process) 3. Removal of thin layers of tissue layer by layer in the area of ​​residual cancer tissue until it is completely removed.

[0003] Since the maximum size of tumor tissue that can be observed by a microscope at a time is about 2*2cm, Mohs surgery was often used to remove smaller surface tumors in the past. During the microscopic tracing process, it is often necessary to manually divide the cut thin layer of tissue with a scalpel into 4 to 8 pieces of 2*2cm tissue for observation under a microscope. However, this technology is currently further used for the removal of larger surface tumors, such as dermatofibrosarcoma protuberans, where the tumor diameter can be as large as 10-20cm. At this time, the tissue often needs to be cut into 25-100 pieces before it can be observed under a microscope. If the scalpel is used for cutting again, it is often time-consuming and laborious, resulting in the extension of the surgical process, and the size of the cut small tissue may be uneven due to differences in manual operation, which is not conducive to later observation and positioning. Therefore, there is an urgent need for a Mohs surgery auxiliary slicer to process the tissue cut in Mohs surgery in a standardized and batched manner to improve efficiency and reduce patient waiting time. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides a slicer for assisting Mohs surgery, which can divide the thin slices of tissue cut by Mohs surgery into several or even dozens of pieces of tissue at one time, and complete the slicing process in batches in a unified and efficient manner.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a slicer for assisting Mohs surgery, comprising a connecting mechanism, a placing mechanism is slidably arranged at the front end of the connecting mechanism, control mechanisms are hingedly arranged on both sides of the connecting mechanism, and cutting mechanisms are fixedly arranged on the surfaces of two control mechanisms;

[0006] The cutting mechanism includes a top plate, a bottom surface of the top plate is provided with a plurality of knife grooves, two mounting shells are slidably arranged inside the plurality of knife grooves, the plurality of mounting shells are grouped in pairs and have mounting grooves on opposite side surfaces, the plurality of mounting grooves are grouped in pairs and have a plurality of mounting columns fixedly arranged on opposite side surfaces, and the plurality of mounting grooves are grouped in pairs and have a knife body clamped on the opposite side surfaces by the mounting columns.

[0007] Preferably, blades are fixedly provided at the bottom ends of the multiple blade bodies, multiple mounting holes are opened at equal intervals on the surfaces of the multiple blade bodies, the multiple mounting holes are snap-connected with the mounting columns, connecting blocks are fixedly provided on both sides of the top plate, and connecting holes are opened in the middle of the two connecting blocks.

[0008] Preferably, hinges are fixedly provided on the upper ends of the plurality of installation grooves, the plurality of installation grooves are hingedly connected in groups of two by hinges, fixing rings are fixedly provided on one end of both sides of the plurality of installation grooves, and fixing hooks are fixedly provided on the other end of both sides of the plurality of installation grooves.

[0009] Preferably, two fixing bolts are threadedly provided on both sides of the front end of the top plate, a fixing block is fixedly provided at the front end of the top plate by the two fixing bolts, and a first handle is fixedly provided at the middle position of the front end of the fixing block.

[0010] Preferably, the connecting mechanism includes a connecting seat, connecting shafts are rotatably provided on the upper ends of both sides of the connecting seat, adjusting rods are fixedly provided on both sides of the bottom end of the front side of the connecting seat, and first limit blocks are fixedly provided at the middle position of the two side surfaces of the connecting seat.

[0011] Preferably, the control mechanism comprises a handle, a fixed rod is fixedly provided on the upper side of the rear end of the handle, a movable rod is fixedly provided on the lower side of the rear end of the handle, and a second limit block is fixedly provided on the rear end of the movable rod.

[0012] Preferably, a slide groove is provided in the middle position of the upper surface of the handle, a limit button is slidably arranged inside the slide groove, a connecting rod is fixedly arranged at the bottom end of the limit button, the lower end of the connecting rod is fixedly connected to the movable rod, a limit spring is fixedly arranged at the tail end of the movable rod, and the other end of the limit spring is fixed to the inner wall of the handle.

[0013] Preferably, the placement mechanism comprises a supporting platform, a placement platform is rotatably provided on the upper surface of the supporting platform, and a plurality of positioning grooves are provided on the upper surface of the placement platform.

[0014] Preferably, two positioning plates are slidably arranged inside the plurality of positioning grooves, anti-slip pads are fixedly arranged on one side surface of the plurality of positioning plates, and a second handle is fixedly arranged at the middle position of the front side of the support platform.

[0015] A slicer for assisting Mohs surgery specifically includes the following steps:

[0016] S1. Specimen processing

[0017] The tumor is removed in a disc-shaped manner, and the removed tumor specimen is frozen and fixed. After the fixation is completed, hold the handle with both hands, slide the limit button backward with the thumb, drive the movable rod to move the second limit block backward, and after the second limit block and the first limit block are separated, lift the cutting mechanism as a whole through the handle, release the thumb, and the limit spring drives the second limit block to reset. The front end of the second limit block presses the first limit block to lock the position of the cutting mechanism and cannot be lowered. At this time, place the tumor specimen on the surface of the placement table and wait for subsequent operations;

[0018] S2. Specimen Fixation

[0019] After placing the specimen on the surface of the placement table, adjust the position of the specimen so that it is located in the center of the placement table. After the position is determined, adjust the position of each positioning plate in the positioning groove, and tighten the specimen along the edge of the specimen through the protective pad to achieve the fixation of the specimen;

[0020] S3. One-time cutting

[0021] Hold the handle with both hands, use the thumbs to drive the two limit buttons to slide backwards, and then drive the second limit block to retract, so that its front end is separated from the first limit block, and the cutting mechanism is pressed downward as a whole, and the fixed specimen is cut once by the blade;

[0022] S4. Direction adjustment

[0023] After the slitting is completed, lift the cutting mechanism to the highest position, release the thumb to reset the second limit block, lock the highest position of the cutting mechanism, slide the entire connecting mechanism backward through the adjustment rod, rotate the entire placing table 90 degrees through the second handle, and reset the connecting mechanism after the rotation is completed;

[0024] S5. Secondary cutting

[0025] Repeat the operation in S3, press down the cutting mechanism, and cut the specimen on the surface of the placement table by the blade. After the cutting is completed, lift the cutting mechanism and lock it, remove the cut specimen from the surface of the placement table for subsequent observation, and disinfect and clean the surface of the placement table;

[0026] S6. Device Lock

[0027] After cleaning, hold the handle with both hands and press the cutting mechanism as a whole down to the lowest position. After pressing it down to the position, release the thumbs of both hands, and the second limit block will be reset under the action of the limit spring. The front end of the second limit block will be stuck by the bottom surface of the first limit block, locking the cutting mechanism as a whole at the lowest position.

[0028] S7. Blade replacement

[0029] After the blade becomes blunt after long-term use, the user can loosen the two fixing bolts, remove the fixing block through the first handle, pull the mounting shell together with the blade body out of the blade groove, loosen the connection between the fixing ring and the fixing hook, separate the two mounting shells, take the blade body out of the mounting groove, connect the new blade body to the mounting column through the mounting holes on its surface, close the two mounting shells, connect and fix the fixing ring and the fixing hook to complete the assembly of the blade and the mounting shell, push the assembled mounting shell back into the blade groove, re-fix the fixing block with the fixing bolts, and complete the replacement of the blade.

[0030] The present invention provides a slicer for assisting Mohs surgery, which has the following beneficial effects:

[0031] 1. The present invention provides a slicer for assisting Mohs surgery. Compared with the existing surgical auxiliary slicer, the surgical auxiliary slicer is provided with a structure in which ten blades are arranged side by side in its cutting mechanism, and the spacing between each blade is 2 cm. The handle combination can simultaneously operate the ten blades for cutting operations. At the same time, the placement table for placing thin slices of tissue is designed to be rotatable by 90 degrees. After the first specimen cutting, the base is rotated 90 degrees for a second cutting, thereby achieving the effect of quickly dividing large tissues into 2*2 cm small tissues in batches. In addition, the blade is designed as a replaceable structure. After being blunted after long-term use, the user can replace the blade, so that the device has the advantages of high efficiency, simple structure, uniform slice size, and easy use.

[0032] 2. The present invention provides a slicer for assisting Mohs surgery. Compared with the existing surgical auxiliary slicer, the surgical auxiliary slicer is provided with two control mechanisms. When using it, the user needs to use both hands to operate the two handles of the control mechanism at the same time to achieve the function of slicing the specimen. At the same time, combined with the first limit block and the second limit block, the user can lock the entire cutting mechanism at the highest point and the lowest point respectively, avoiding the traditional device being operated with one hand and the other hand being placed on the surface of the placement plate due to misoperation and then lowering the cutting mechanism to cause injury to the user. The locked position is convenient for the user to operate the specimen safely, thereby improving the safety of the entire device when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is an axonometric schematic diagram of the present invention;

[0034] Figure 2 It is a schematic diagram of the expansion axonometric view of the present invention;

[0035] Figure 3 It is a schematic diagram of the axonometric state of the present invention;

[0036] Figure 4 It is a schematic diagram of the axonometric measurement of the blade of the present invention;

[0037] Figure 5 It is an axonometric schematic diagram of the installation housing of the present invention;

[0038] Figure 6 This is an axonometric schematic diagram of the installation housing of the present invention in use;

[0039] Figure 7 It is an enlarged schematic diagram of point A of the present invention;

[0040] Figure 8 It is a cross-sectional schematic diagram of the control mechanism of the present invention;

[0041] Fig. 9 It is an enlarged schematic diagram of point B of the present invention.

[0042] Among them, 1. cutting mechanism; 2. connecting mechanism; 3. control mechanism; 4. placing mechanism; 101. first handle; 102. fixing bolt; 103. fixing block; 104. connecting hole; 105. connecting block; 106. top plate; 107. blade; 108. mounting hole; 109. blade; 110. mounting shell; 111. mounting column; 112. mounting groove; 113. hinge; 114. fixing ring; 115. fixing hook; 11 6. Knife groove; 201. Connecting shaft; 202. First limit block; 203. Connecting seat; 204. Adjusting rod; 301. Second limit block; 302. Movable rod; 303. Fixed rod; 304. Limit spring; 305. Handle; 306. Limit button; 307. Connecting rod; 308. Slide groove; 401. Placement table; 402. Positioning groove; 403. Anti-slip pad; 404. Positioning plate; 405. Support platform; 406. Second handle. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0044] like Figure 1-9As shown, an embodiment of the present invention provides a slicer for assisting Mohs surgery, including a connecting mechanism 2, which is convenient for realizing the connection and use function between various structures when the device is used, a placing mechanism 4 is slidably provided at the front end of the connecting mechanism 2, which is convenient for the user to place the specimen to be sliced, and control mechanisms 3 are hingedly provided on both sides of the connecting mechanism 2, which is convenient for the user to control the state of the device, and cutting mechanisms 1 are fixedly provided on the surfaces of the two control mechanisms 3, which is conducive to realizing the function of cutting the specimen when the device is used;

[0045] The cutting mechanism 1 includes a top plate 106, and a plurality of knife grooves 116 are provided on the bottom surface of the top plate 106, so that the user can place the blade 109 needed for the device. Two mounting shells 110 are slidably arranged inside the plurality of knife grooves 116. The plurality of mounting shells 110 are arranged in pairs and have mounting grooves 112 on the opposite side surfaces. The plurality of mounting grooves 112 are arranged in pairs and have a plurality of mounting columns 111 fixedly arranged on the opposite side surfaces, so that the user can fix and install the blade 109 when using the device. The plurality of mounting grooves 112 are arranged in pairs and have a plurality of mounting columns 111 fixedly arranged on the opposite side surfaces. The blade body 107 is clamped with the mounting column 111, and the bottom ends of the multiple blade bodies 107 are fixedly provided with blades 109, which is conducive to realizing the cutting function when the device is used. The surfaces of the multiple blade bodies 107 are provided with multiple mounting holes 108 at equal intervals, and the multiple mounting holes 108 are clamped with the mounting column 111, which is convenient for the user to fix the position of the blade 109. Connection blocks 105 are fixedly provided on both sides of the top plate 106, and connection holes 104 are provided in the middle of the two connection blocks 105, which is convenient for realizing the connection and use function between the cutting mechanism 1 and the control mechanism 3.

[0046] A hinge 113 is fixedly provided on the upper ends of the multiple installation grooves 112, and the multiple installation grooves 112 are hingedly connected to each other in groups of two by the hinge 113, so as to realize the opening and closing function between the two installation grooves 112, a fixing ring 114 is fixedly provided on one end of both sides of the multiple installation grooves 112, and a fixing hook 115 is fixedly provided on the other end of both sides of the multiple installation grooves 112, so as to facilitate the user to fix the positions of the two installation grooves 112, two fixing bolts 102 are threadedly provided on both sides of the front end of the top plate 106, and a fixing block 103 is fixedly provided on the front end of the top plate 106 by the two fixing bolts 102, and a first handle 101 is fixedly provided at the middle position of the front end of the fixing block 103, so as to facilitate the user to take and place the fixing block 103 to replace the blade 109.

[0047] The connecting mechanism 2 includes a connecting seat 203, and the upper ends of both sides of the connecting seat 203 are rotatably provided with connecting shafts 201, and the two sides of the bottom end of the front side of the connecting seat 203 are fixedly provided with adjusting rods 204, and the middle positions of the surfaces of both sides of the connecting seat 203 are fixedly provided with first limit blocks 202, which is conducive to providing a basis for the combination of various structures of the device, and the control mechanism 3 includes a handle 305, and the upper side of the rear end of the handle 305 is fixedly provided with a fixed rod 303, and the lower side of the rear end of the handle 305 is fixedly provided with a movable rod 302, and the rear end of the movable rod 302 is fixedly provided with a second limit block 301, which is conducive to passing through the first limit block 20 2 is combined with the second limit block 301 to lock the overall position of the cutting mechanism 1. A sliding groove 308 is opened in the middle position of the upper surface of the handle 305. A limit button 306 is slidably set inside the sliding groove 308. A connecting rod 307 is fixedly set at the bottom end of the limit button 306, so that the position of the second limit block 301 can be adjusted by the limit button 306. The lower end of the connecting rod 307 is fixedly connected to the movable rod 302, and a limit spring 304 is fixedly set at the tail end of the movable rod 302. The other end of the limit spring 304 is fixed to the inner wall of the handle 305, so that the second limit block 301 can be reset after the user lets go.

[0048] The placement mechanism 4 includes a support platform 405, and a placement platform 401 is rotatably arranged on the upper surface of the support platform 405. A plurality of positioning grooves 402 are provided on the upper surface of the placement platform 401, so that the user can place and fix the specimens to be cut. Two positioning plates 404 are slidably arranged inside the plurality of positioning grooves 402, and anti-slip pads 403 are fixedly arranged on one side surface of the plurality of positioning plates 404. A second handle 406 is fixedly arranged in the middle position of the front side of the support platform 405, so that the user can fix the position of the specimen on the placement platform 401 through the device.

[0049] A slicer for assisting Mohs surgery specifically includes the following steps:

[0050] S1. Specimen processing

[0051] The tumor is removed in a disc-shaped manner, and the removed tumor specimen is frozen and fixed. After the fixation is completed, the handle 305 is held with both hands, and the limit button 306 is slid backward with the thumb, driving the movable rod 302 to move the second limit block 301 backward. After the second limit block 301 and the first limit block 202 are separated, the cutting mechanism 1 is lifted as a whole through the handle 305, and the thumb is released. The limit spring 304 drives the second limit block 301 to reset, and the front end of the second limit block 301 presses the first limit block 202 to lock the position of the cutting mechanism 1, and the cutting mechanism 1 cannot be lowered. At this time, the tumor specimen is placed on the surface of the placement table 401, waiting for subsequent operations;

[0052] S2. Specimen Fixation

[0053] After placing the specimen on the surface of the placement table 401, adjust the position of the specimen so that it is located at the center of the placement table 401. After the position is determined, adjust the position of each positioning plate 404 in the positioning groove 402, and tighten the specimen along the edge of the specimen through the protective pad 403 to achieve the fixation of the specimen;

[0054] S3. One-time cutting

[0055] Hold the handle 305 with both hands, and use the thumbs to drive the two limit buttons 306 to slide backwards, thereby driving the second limit block 301 to retract backwards, so that its front end is separated from the first limit block 202, and the cutting mechanism 1 is pressed downward as a whole, and the fixed specimen is cut once by the blade 109;

[0056] S4. Direction adjustment

[0057] After the slitting is completed, lift the cutting mechanism 1 to the highest position, release the thumb to reset the second limit block 301, lock the highest position of the cutting mechanism 1, slide the connecting mechanism 2 backward as a whole through the adjusting rod 204, rotate the placing table 401 as a whole 90 degrees through the second handle 406, and reset the connecting mechanism 2 after the rotation is completed;

[0058] S5. Secondary cutting

[0059] Repeat the operation in S3, press down the cutting mechanism 1, and cut the specimen on the surface of the placement table 401 by the blade. After the cutting is completed, lift the cutting mechanism 1 and lock it, remove the cut specimen from the surface of the placement table 401 for subsequent observation, and disinfect and clean the surface of the placement table 401;

[0060] S6. Device Lock

[0061] After cleaning is completed, hold the handle 305 with both hands and press the cutting mechanism 1 as a whole to the lowest position. After pressing it to the position, release the thumbs of both hands, and the second limit block 301 will be reset under the action of the limit spring 304. The front end of the second limit block 301 will be stuck by the bottom surface of the first limit block 202, and the cutting mechanism 1 will be locked in the lowest position as a whole.

[0062] S7. Blade replacement

[0063] After the blade 109 becomes blunt after long-term use, the user can loosen the two fixing bolts 102, remove the fixing block 103 through the first handle 101, pull the mounting shell 110 together with the blade 107 out of the blade groove 116, loosen the connection between the fixing ring 114 and the fixing hook 115, separate the two mounting shells 110, take out the blade 107 from the mounting groove 112, and clamp the new blade 107 to the mounting column 111 through the mounting hole 108 on its surface, close the two mounting shells 110, clamp and fix the fixing ring 114 and the fixing hook 115 to complete the assembly of the blade 107 and the mounting shell 110, push the assembled mounting shell 110 back into the blade groove 116, re-fix the fixing block 103 through the fixing bolts 102, and complete the replacement of the blade 109.

[0064] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A slicer for assisting Mohs surgery, comprising a connecting mechanism (2), characterized in that: The front end of the connecting mechanism (2) is slidably provided with a placing mechanism (4), both sides of the connecting mechanism (2) are hingedly provided with control mechanisms (3), and the surfaces of the two control mechanisms (3) are fixedly provided with cutting mechanisms (1); The cutting mechanism (1) comprises a top plate (106), a plurality of knife grooves (116) are provided on the bottom surface of the top plate (106), two mounting shells (110) are slidably arranged inside the plurality of knife grooves (116), a plurality of mounting shells (110) are provided with mounting grooves (112) on opposite side surfaces in groups of two, a plurality of mounting grooves (112) are fixedly provided with a plurality of mounting columns (111) on opposite side surfaces in groups of two, and a knife body (107) is clamped and arranged on opposite side surfaces in groups of two via the mounting columns (111).

2. A slicer for assisting Mohs surgery according to claim 1, characterized in that: A blade (109) is fixedly arranged at the bottom of each of the plurality of blade bodies (107); a plurality of mounting holes (108) are opened at equal intervals on the surface of each of the plurality of blade bodies (107); the plurality of mounting holes (108) and mounting columns (111) are snap-connected; connecting blocks (105) are fixedly arranged on both sides of the top plate (106); and a connecting hole (104) is opened in the middle of each of the two connecting blocks (105).

3. The slicer for assisting Mohs surgery according to claim 1, characterized in that: A hinge (113) is fixedly provided at the upper end of the plurality of installation grooves (112), and the plurality of installation grooves (112) are hingedly connected in pairs through the hinge (113), a fixing ring (114) is fixedly provided at one end of both sides of the plurality of installation grooves (112), and a fixing hook (115) is fixedly provided at the other end of both sides of the plurality of installation grooves (112).

4. The slicer for assisting Mohs surgery according to claim 1, characterized in that: Two fixing bolts (102) are threadedly arranged on both sides of the front end of the top plate (106); a fixing block (103) is fixedly arranged at the front end of the top plate (106) via the two fixing bolts (102); and a first handle (101) is fixedly arranged at the middle position of the front end of the fixing block (103).

5. The slicer for assisting Mohs surgery according to claim 1, characterized in that: The connection mechanism (2) comprises a connection seat (203), the upper ends of both sides of the connection seat (203) are rotatably provided with connection shafts (201), the bottom ends of the front sides of the connection seat (203) are fixedly provided with adjustment rods (204), and the middle positions of the surfaces of both sides of the connection seat (203) are fixedly provided with first limit blocks (202).

6. The slicer for assisting Mohs surgery according to claim 1, characterized in that: The control mechanism (3) comprises a handle (305), a fixed rod (303) is fixedly arranged on the upper side of the rear end of the handle (305), a movable rod (302) is fixedly arranged on the lower side of the rear end of the handle (305), and a second limit block (301) is fixedly arranged on the rear end of the movable rod (302).

7. The slicer for assisting Mohs surgery according to claim 6, characterized in that: A slide groove (308) is provided in the middle of the upper surface of the handle (305), a limit button (306) is slidably arranged inside the slide groove (308), a connecting rod (307) is fixedly arranged at the bottom end of the limit button (306), the lower end of the connecting rod (307) is fixedly connected to the movable rod (302), a limit spring (304) is fixedly arranged at the tail end of the movable rod (302), and the other end of the limit spring (304) is fixed to the inner wall of the handle (305).

8. The slicer for assisting Mohs surgery according to claim 1, characterized in that: The placement mechanism (4) comprises a support platform (405), a placement platform (401) is rotatably provided on the upper surface of the support platform (405), and a plurality of positioning grooves (402) are provided on the upper surface of the placement platform (401).

9. The slicer for assisting Mohs surgery according to claim 8, characterized in that: Two positioning plates (404) are slidably arranged inside the plurality of positioning grooves (402), a non-slip pad (403) is fixedly arranged on one side surface of the plurality of positioning plates (404), and a second handle (406) is fixedly arranged at the middle position of the front side of the support platform (405).

10. A slicer for assisting Mohs surgery according to claims 1-9, characterized in that: The specific usage steps are as follows: S1. Specimen processing The tumor is removed in a disc-shaped manner, and the removed tumor specimen is frozen and fixed. After the fixation is completed, the handle (305) is held with both hands, and the limit button (306) is slid backward with the thumb, driving the movable rod (302) to move the second limit block (301) backward. After the second limit block (301) and the first limit block (202) are separated, the cutting mechanism (1) is lifted as a whole by the handle (305), and the thumb is released. The limit spring (304) drives the second limit block (301) to reset. The front end of the second limit block (301) pushes the first limit block (202) to lock the position of the cutting mechanism (1) and prevent it from descending. At this time, the tumor specimen is placed on the surface of the placement table (401) and waits for subsequent operations. S2. Specimen Fixation After placing the specimen on the surface of the placement table (401), the position of the specimen is adjusted so that it is located at the center of the placement table (401). After the position is determined, the position of each positioning plate (404) in the positioning groove (402) is adjusted, and the specimen is pressed tightly along the edge of the specimen by the protective pad (403) to achieve fixation of the specimen; S3. One-time cutting Holding the handle (305) with both hands, the two limit buttons (306) are driven to slide backwards by the thumbs, thereby driving the second limit block (301) to retract backwards, so that its front end is separated from the first limit block (202), and the cutting mechanism (1) is pressed downward as a whole, and the fixed specimen is cut once by the blade (109); S4. Direction adjustment After the slitting is completed, the cutting mechanism (1) is lifted to the highest position, the thumb is released to reset the second limit block (301), the highest position of the cutting mechanism (1) is locked, the connecting mechanism (2) is slid backward as a whole through the adjusting rod (204), the placing table (401) is rotated 90 degrees as a whole through the second handle (406), and after the rotation is completed, the connecting mechanism (2) is reset; S5. Secondary cutting Repeat the operation in S3, press the cutting mechanism (1) downward, and cut the specimen on the surface of the placement table (401) with the blade. After the cutting is completed, lift the cutting mechanism (1) and lock it, remove the cut specimen from the surface of the placement table (401) for subsequent observation, and disinfect and clean the surface of the placement table (401); S6. Device Lock After cleaning is completed, hold the handle (305) with both hands and press the cutting mechanism (1) as a whole down to the lowest position. After pressing it down to the position, release the thumbs of both hands, and the second limit block (301) will be reset under the action of the limit spring (304). The front end of the second limit block (301) will be stuck by the bottom surface of the first limit block (202), and the cutting mechanism (1) will be locked in the lowest position as a whole. S7. Blade replacement After the blade (109) becomes blunt due to long-term use, the user can loosen the two fixing bolts (102), remove the fixing block (103) through the first handle (101), pull out the installation shell (110) together with the blade (107) from the blade groove (116), loosen the connection between the fixing ring (114) and the fixing hook (115), separate the two installation shells (110), remove the blade (107) from the installation groove (112), and replace the new blade (107). 07) is snapped onto the mounting column (111) through the mounting hole (108) on its surface, the two mounting shells (110) are closed, the fixing ring (114) and the fixing hook (115) are snapped and fixed, the assembly of the blade (107) and the mounting shell (110) is completed, the assembled mounting shell (110) is pushed back into the blade groove (116), the fixing block (103) is re-fixed by the fixing bolt (102), and the replacement of the blade (109) is completed.

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