Tractor for pediatric tumor operation

Abstract

The invention discloses a retractor for pediatric tumor surgery, and belongs to the technical field of tumor surgery, the retractor comprises a top rod and supporting legs mounted on the top rod, a connecting assembly is arranged at the top of the top rod, a motor is mounted on the connecting assembly, a third rotating rod is arranged at the output end of the motor, and a first transmission assembly is mounted on the third rotating rod; a lighting block is installed on the third rotating rod, a lighting lamp is installed on the lighting block, a plurality of supporting plates are installed on the top rod, the first transmission assembly is connected with the supporting plates, and an opening assembly is installed at the bottoms of the supporting plates. According to the device, the motor is arranged, the motor is started to drive an illuminating lamp to rotate, the illuminating lamp can rotate, an illuminating opening of the illuminating lamp faces downwards, then the wound of a patient can be illuminated, and medical staff can conveniently conduct surgical operation; when the first gear rotates, the first rack and the second rack can be driven to move reversely, and then the two supporting plates are driven to move reversely.

Description

Technical Field

[0001] The invention relates to a traction device, in particular to a traction device for pediatric tumor surgery, belonging to the technical field of tumor surgery. Background Art

[0002] Tumors are new growths formed by the proliferation of local tissue cells. The acidity of tumors is slightly stronger than that of healthy body tissues. Tumors can form an "acid wall" to protect themselves from attacks by the immune system. During pediatric tumor surgery, a traction device is required to open and expand the wound.

[0003] However, the existing traction device for pediatric tumor surgery cannot be used to pull the paddle to expand the wound during actual use. It usually requires manual operation by staff, which is inconvenient to operate. In addition, it cannot be used to illuminate the wound during use, making it inconvenient for medical staff to perform surgery. Summary of the invention

[0004] The main purpose of the present invention is to provide a traction device for pediatric tumor surgery in order to solve the problem that it is not convenient to pull the paddle to open and expand the wound and it is not convenient to illuminate the wound during use.

[0005] The purpose of the present invention can be achieved by adopting the following technical solutions:

[0006] A traction device for pediatric tumor surgery comprises a push rod and a supporting leg mounted on the push rod, a connecting assembly is provided on the top of the push rod, a motor is mounted on the connecting assembly, a third rotating rod is mounted on the output end of the motor, a first transmission assembly is mounted on the third rotating rod, a lighting block is mounted on the third rotating rod, a lighting lamp is mounted on the lighting block, a plurality of supporting plates are mounted on the push rod, the first transmission assembly is connected to the supporting plate, an opening assembly is mounted on the bottom of the supporting plate, a positioning assembly is mounted inside the supporting leg, and the output end of the motor is connected to the positioning assembly via a second transmission assembly.

[0007] Preferably, the connecting assembly includes a connecting column and a connecting plate, a plurality of connecting columns are installed on the top of the top rod, one end of the connecting column is connected to the connecting plate, and the motor is installed on the connecting plate.

[0008] Preferably, the first transmission assembly includes a first gear, a first rack, a first connecting rod, a second rack and a second connecting rod, the first gear is mounted on the third rotating rod, the second connecting rod is mounted on one of the support plates, the first connecting rod is mounted on the other support plate, a first rack meshingly connected to the first gear is mounted at one end of the first connecting rod, and a second rack meshingly connected to the first gear is mounted on the second connecting rod.

[0009] Preferably, a guide rod is installed on the push rod, and a guide hole that cooperates with the guide rod is opened on the support plate.

[0010] Preferably, a main contact switch is installed on the lighting lamp, and an auxiliary contact switch cooperating with the main contact switch is installed on the top rod.

[0011] Preferably, a rotating block is installed on the third rotating rod, a rotating groove cooperating with the rotating block is provided on the top rod, a plurality of rotating cavities are provided on the rotating block, and balls are rotatably installed inside the rotating cavities.

[0012] Preferably, the opening assembly includes a support rod, a top plate and a paddle, a plurality of support rods are installed at the bottom of the support plate, one end of the support rod is connected to the top plate, and a paddle is installed at the bottom of the top plate.

[0013] Preferably, the second transmission assembly includes a first main pulley, a first belt, a first auxiliary pulley, a first rotating rod, a second auxiliary pulley, a second main pulley, a second belt, a second rotating rod, a second gear and a third rack, a plurality of first main pulleys are installed on the third rotating rod, the first rotating rod is rotatably installed on the top rod, the first auxiliary pulley is installed on the first rotating rod, the first main pulley is connected to the first auxiliary pulley through the first belt, the second rotating rod is rotatably installed on the support leg, the second main pulley is installed on the second rotating rod, the second auxiliary pulley is installed on the first rotating rod, the second auxiliary pulley is connected to the second main pulley through the second belt, the second gear is installed on the second rotating rod, and a third rack meshing with the second gear is installed on the top of the positioning assembly.

[0014] Preferably, the positioning assembly includes a positioning leg, a base plate and a suction cup, the positioning leg is slidably mounted on the support leg, the bottom of the positioning leg is mounted with a base plate, a plurality of suction cups are mounted at the bottom of the base plate, the third rack is mounted on the top of the positioning leg, the first rotating rod is rotatably connected to the top rod via a first bearing, and the second rotating rod is rotatably connected to the support leg via a second bearing.

[0015] Preferably, a torque spring is installed inside the lighting block, a reel is installed on the torque spring, a connecting strip is installed on the reel, one end of the connecting strip is connected to the lighting lamp, an insert block is installed on the lighting lamp, a connecting groove that cooperates with the insert block is opened on the lighting block, and a baffle is installed on the reel.

[0016] Beneficial technical effects of the present invention:

[0017] 1. According to the tractor for pediatric tumor surgery of the present invention, a motor is provided, and the motor is started to drive the lighting lamp to rotate, so that the lighting lamp can be rotated, and the lighting port of the lighting lamp is directed downward, so that the patient's wound can be illuminated, which can facilitate medical staff to perform surgical operations.

[0018] 2. By setting a motor, the motor starts and drives the first gear to rotate. When the first gear rotates, it can drive the first rack and the second rack to move in the opposite direction, and then drive the two support plates to move in the opposite direction, so as to open the lighting cavity and enable the lighting lamp to illuminate the patient's wound. When the support plate moves, it can drive the paddle to move, so as to open the patient's wound for surgical operation, and the paddle and the lighting lamp can be operated in conjunction, without turning on the lighting lamp separately or moving the paddle separately to open the wound. The operation steps are short and the use is more convenient. Only one motor is needed to drive the paddle, which can effectively reduce the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 is a schematic diagram of the first gear structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the structure of the plectrum of the present invention;

[0022] Figure 4 It is a schematic diagram of the structure of the lighting lamp of the present invention;

[0023] Figure 5 It is a schematic diagram of the rotating block structure of the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of the first rack and the second rack of the present invention;

[0025] Figure 7 is a schematic diagram of the second gear structure of the present invention;

[0026] Figure 8 It is a schematic diagram of the suction cup structure of the present invention;

[0027] Fig. 9 It is a schematic diagram of the torque spring structure of the present invention;

[0028] Fig.10 It is a schematic diagram of the connecting strip structure of the present invention;

[0029] Fig.11 It is a schematic diagram of the plug block structure of the present invention.

[0030] In the figure: 1, top rod; 2, connecting column; 3, guide rod; 4, supporting leg; 5, supporting plate; 6, supporting rod; 7, top plate; 8, paddle; 9, connecting plate; 10, motor; 11, first rack; 12, first connecting rod; 13, second connecting rod; 14, second rack; 15, first rotating rod; 16, second rotating rod; 17, second main pulley; 18, second auxiliary pulley; 19, second belt; 20, first auxiliary pulley ; 21. first belt; 22. first main pulley; 23. third rotating rod; 24. first gear; 25. bottom plate; 26. suction cup; 27. second gear; 28. third rack; 29. ​​positioning leg; 30. lighting lamp; 31. main contact switch; 32. rotating block; 33. ball bearing; 34. auxiliary contact switch; 35. lighting block; 36. torque spring; 37. reel; 38. connecting strip; 39. plug-in block; 40. baffle. DETAILED DESCRIPTION

[0031] In order to make the technical solution of the present invention more clear and specific to those skilled in the art, the present invention is further described in detail below in conjunction with embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0032] like Figure 1-Figure 11As shown, the tractor for pediatric tumor surgery provided in this embodiment includes a mandrel 1 and a supporting leg 4 installed on the mandrel 1, a connecting assembly is provided on the top of the mandrel 1, a motor 10 is installed on the connecting assembly, a third rotating rod 23 is provided at the output end of the motor 10, a first transmission assembly is provided on the third rotating rod 23, a lighting block 35 is provided on the third rotating rod 23, a lighting lamp 30 is provided on the lighting block 35, a plurality of supporting plates 5 are provided on the mandrel 1, the first transmission assembly is connected to the supporting plate 5, an opening assembly is provided at the bottom of the supporting plate 5, a positioning assembly is provided inside the supporting leg 4, the output end of the motor 10 is connected to the positioning assembly via the second transmission assembly, and by providing the motor 10, the motor 10 is started to drive the lighting lamp 30 to rotate, so that the lighting lamp 30 can rotate , the lighting port of the lighting lamp 30 is facing downward, so that the patient's wound can be illuminated, which can facilitate medical staff to perform surgical operations. The connecting component includes a connecting column 2 and a connecting plate 9. A plurality of connecting columns 2 are installed on the top of the top rod 1. One end of the connecting column 2 is connected to the connecting plate 9. A motor 10 is installed on the connecting plate 9. The first transmission component includes a first gear 24, a first rack 11, a first connecting rod 12, a second rack 14 and a second connecting rod 13. The first gear 24 is installed on the third rotating rod 23. The second connecting rod 13 is installed on one of the support plates 5, and the first connecting rod 12 is installed on the other support plate 5. One end of the first connecting rod 12 is installed with the first rack 11 meshing with the first gear 24, and the second connecting rod 13 is installed There is a second rack 14 meshing with the first gear 24, a guide rod 3 is installed on the top rod 1, and a guide hole that cooperates with the guide rod 3 is opened on the support plate 5. The opening component includes a support rod 6, a top plate 7 and a paddle 8. A plurality of support rods 6 are installed at the bottom of the support plate 5, one end of the support rod 6 is connected to the top plate 7, and a paddle 8 is installed at the bottom of the top plate 7. By setting a motor 10, the motor 10 starts to drive the first gear 24 to rotate. When the first gear 24 rotates, it can drive the first rack 11 and the second rack 14 to move in the opposite direction, thereby driving the two support plates 5 to move in the opposite direction, so as to open the lighting cavity, enable the lighting lamp 30 to illuminate the patient's wound, and when the support plate 5 moves, it can drive the paddle 8 to move, thereby opening the patient's wound. The surgical operation can be performed, and the paddle 8 can be linked with the illuminating lamp 30 for operation. There is no need to turn on the illuminating lamp 30 separately or move the paddle 8 separately to open the wound. The operation steps are short, the use is convenient, and only one motor 10 is needed to drive it, which can effectively reduce the cost. The motor 10 can be supported by setting the connecting column 2 and the connecting plate 9. The support plate 5 can be guided and limited by setting the guide rod 3 and the guide hole. A torque spring 36 is installed inside the illuminating block 35, and a reel 37 is installed on the torque spring 36. A connecting strip 38 is installed on the reel 37. One end of the connecting strip 38 is connected to the illuminating lamp 30. An insert block 39 is installed on the illuminating lamp 30. A connecting groove that cooperates with the insert block 39 is provided on the illuminating block 35.The baffle 40 is installed on the reel 37. By setting the torque spring 36, the illuminating lamp 30 is pulled, and the torque spring 36 rotates to drive the reel 37 to rotate, and the connecting strip 38 is extended, which can facilitate the doctor to pull the illuminating lamp 30 out of the top rod 1, and can adjust the lighting position of the illuminating lamp 30, which is more convenient to use and has a wider lighting range.

[0033] In this embodiment, if Figure 1 and Figure 5 As shown, a main contact switch 31 is installed on the lighting lamp 30, an auxiliary contact switch 34 that cooperates with the main contact switch 31 is installed on the top rod 1, a rotating block 32 is installed on the third rotating rod 23, a rotating groove that cooperates with the rotating block 32 is opened on the top rod 1, a plurality of rotating cavities are opened on the rotating block 32, and a ball 33 is rotatably installed inside the rotating cavity. By arranging the rotating block 32 and the rotating groove to be rotatably connected, the lighting lamp 30 can be rotated in the lighting cavity. By arranging the ball 33, the friction force of the rotation of the rotating block 32 can be reduced. When the third rotating rod 23 rotates, it drives the lighting lamp 30 to rotate. The main contact switch 31 is separated from the auxiliary contact switch 34, so that the lighting lamp 30 can be turned on for lighting. When the main contact switch 31 is fitted with the auxiliary contact switch 34, the lighting lamp 30 can be turned off.

[0034] In this embodiment, if Figure 1 , Figure 4 , Figure 7 and Figure 8As shown, the second transmission assembly includes a first main pulley 22, a first belt 21, a first auxiliary pulley 20, a first rotating rod 15, a second auxiliary pulley 18, a second main pulley 17, a second belt 19, a second rotating rod 16, a second gear 27 and a third rack 28. A plurality of first main pulleys 22 are mounted on the third rotating rod 23. The first rotating rod 15 is rotatably mounted on the top rod 1. The first auxiliary pulley 20 is mounted on the first rotating rod 15. The first main pulley 22 is connected to the first auxiliary pulley 18 through the first belt 21. The support leg 4 is provided with a pulley 20, a second rotating rod 16 is rotatably mounted on the support leg 4, a second main pulley 17 is mounted on the second rotating rod 16, a second auxiliary pulley 18 is mounted on the first rotating rod 15, the second auxiliary pulley 18 is connected to the second main pulley 17 through a second belt 19, a second gear 27 is mounted on the second rotating rod 16, a third rack 28 meshing with the second gear 27 is mounted on the top of the positioning assembly, the positioning assembly includes a positioning leg 29, a bottom plate 25 and a suction cup 26, and a positioning leg 4 is slidably mounted on the support leg 4. Leg 29, a bottom plate 25 is installed at the bottom of the positioning leg 29, a plurality of suction cups 26 are installed at the bottom of the bottom plate 25, a third rack 28 is installed at the top of the positioning leg 29, the first rotating rod 15 is rotatably connected to the top rod 1 through the first bearing, and the second rotating rod 16 is rotatably connected to the supporting leg 4 through the second bearing. When the motor 10 is started, it drives the third rotating rod 23 to rotate and then drives the first main pulley 22 to rotate, and drives the first auxiliary pulley 20 to rotate through the first belt 21. When the first auxiliary pulley 20 rotates, it can drive the second auxiliary pulley 18 to rotate, and through the second belt 19, it can drive the second main pulley 17 to rotate, and then drive the second gear 27 to rotate. When the second gear 27 rotates, it can drive the third rack 28 to move, so that the positioning leg 29 can slide on the supporting leg 4, and the suction cup 26 can be adsorbed on the bedside, so that the tractor can be stabilized, and the tractor can be less likely to shake when in use. It can be adjusted simultaneously with the paddle 8 and the lighting lamp 30, and no separate adjustment is required. The use steps are relatively simple and the use is relatively convenient.

[0035] In this embodiment, if Figure 1-Figure 11 As shown, the working process of a tractor for pediatric tumor surgery provided in this embodiment is as follows:

[0036] Step 1: The medical staff holds the support leg 4, the motor 10 starts to drive the third rotating rod 23 to rotate, the third rotating rod 23 drives the first gear 24 to rotate when rotating, the first gear 24 drives the first rack 11 and the second rack 14 to move in opposite directions when rotating, and then drives the support plate 5 to move, and the lighting cavity is opened when the support plate 5 moves, and when the third rotating rod 23 rotates on the top rod 1, the lighting lamp 30 rotates the main contact switch 31 and the auxiliary contact switch 34 to separate, and the lighting lamp 30 illuminates the wound;

[0037] Step 2: When the support plate 5 moves, the paddle 8 is driven to move, thereby opening the wound;

[0038] Step 3: When the motor 10 is started, it drives the third rotating rod 23 to rotate, and then drives the first main pulley 22 to rotate, and drives the first auxiliary pulley 20 to rotate through the first belt 21. When the first auxiliary pulley 20 rotates, it drives the second auxiliary pulley 18 to rotate, and through the second belt 19, drives the second main pulley 17 to rotate, and then drives the second gear 27 to rotate. When the second gear 27 rotates, it drives the third rack 28 to move, so that the positioning leg 29 slides on the supporting leg 4, and the suction cup 26 is adsorbed on the bedside to position the traction device.

[0039] In summary, in the present embodiment, according to the tractor for pediatric tumor surgery of the present embodiment, by setting the motor 10, the motor 10 is started to drive the illuminating lamp 30 to rotate, so that the illuminating lamp 30 can be rotated, and the illuminating port of the illuminating lamp 30 is directed downward, so that the patient's wound can be illuminated, which can facilitate the medical staff to perform the surgery. By setting the motor 10, the motor 10 is started to drive the first gear 24 to rotate, and when the first gear 24 rotates, it can drive the first rack 11 and the second rack 14 to move in the opposite direction, and then drive the two support plates 5 to move in the opposite direction, so that the illuminating cavity can be opened, and the illuminating lamp 30 can illuminate the patient's wound, and when the support plate 5 moves, It can drive the paddle 8 to move, and then the patient's wound can be opened for surgical operation, and the paddle 8 can be linked with the illuminating lamp 30 for operation, without turning on the illuminating lamp 30 separately or moving the paddle 8 separately to open the wound, the operation steps are short, the use is relatively convenient, and only one motor 10 is required for driving, which can effectively reduce the cost, and the motor 10 can be supported by setting the connecting column 2 and the connecting plate 9, and the support plate 5 can be guided and limited by setting the guide rod 3 and the guide hole to cooperate with each other, and the illuminating lamp 30 can be rotated in the illuminating cavity by setting the rotating block 32 and the rotating groove to be rotatably connected, and the ball 33 can be provided to facilitate The friction of the rotating block 32 is reduced. When the third rotating rod 23 rotates, the lighting lamp 30 is driven to rotate. The main contact switch 31 and the auxiliary contact switch 34 are separated, so that the lighting lamp 30 can be turned on for lighting. When the main contact switch 31 and the auxiliary contact switch 34 are attached, the lighting lamp 30 can be easily turned off. When the motor 10 is started, the third rotating rod 23 is driven to rotate, and then the first main pulley 22 is driven to rotate through the first belt 21 to drive the first auxiliary pulley 20 to rotate. When the first auxiliary pulley 20 rotates, the second auxiliary pulley 18 can be driven to rotate. Through the second belt 19, the second main pulley 17 can be driven to rotate, and then the second gear 27 can be driven to rotate. When the second gear 27 rotates, it can drive the third rack 28 to move, so that the positioning leg 29 can slide on the supporting leg 4, and the suction cup 26 can be adsorbed on the bedside, so that the traction device can be stabilized, and the traction device can be less likely to shake during use. It can be adjusted simultaneously with the paddle 8 and the lighting lamp 30 without separate adjustment. The use steps are relatively simple and convenient. By setting a torque spring 36, the lighting lamp 30 is pulled, and the rotation of the torque spring 36 drives the reel 37 to rotate, and the connecting strip 38 is extended, which can facilitate the doctor to pull the lighting lamp 30 out of the top rod 1, and the lighting position of the lighting lamp 30 can be adjusted. It is convenient to use and has a wider lighting range.

[0040] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0041] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0042] The above description shows and describes several preferred embodiments of the present invention, but as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. Changes and variations made by those skilled in the art do not depart from the spirit and scope of the present invention, and should be within the scope of protection of the claims attached to the present invention.

Claims

1. A traction device for pediatric tumor surgery, characterized in that: The invention comprises a top rod (1) and a support leg (4) mounted on the top rod (1); a connecting assembly is arranged at the top of the top rod (1); a motor (10) is mounted on the connecting assembly; a third rotating rod (23) is mounted at the output end of the motor (10); a first transmission assembly is mounted on the third rotating rod (23); a lighting block (35) is mounted on the third rotating rod (23); a lighting lamp (30) is mounted on the lighting block (35); a plurality of support plates (5) are mounted on the top rod (1); the first transmission assembly is connected to the support plates (5); an opening assembly is mounted at the bottom of the support plates (5); a positioning assembly is mounted inside the support leg (4); and the output end of the motor (10) is connected to the positioning assembly via a second transmission assembly.

2. A traction device for pediatric tumor surgery according to claim 1, characterized in that: The connection assembly comprises a connection column (2) and a connection plate (9); a plurality of connection columns (2) are installed on the top of the top rod (1); one end of the connection column (2) is connected to the connection plate (9); and the motor (10) is installed on the connection plate (9).

3. A traction device for pediatric tumor surgery according to claim 1, characterized in that: The first transmission assembly comprises a first gear (24), a first rack (11), a first connecting rod (12), a second rack (14) and a second connecting rod (13); the first gear (24) is mounted on the third rotating rod (23); the second connecting rod (13) is mounted on one of the support plates (5); the first connecting rod (12) is mounted on the other support plate (5); a first rack (11) meshingly connected to the first gear (24) is mounted on one end of the first connecting rod (12); and a second rack (14) meshingly connected to the first gear (24) is mounted on the second connecting rod (13).

4. A traction device for pediatric tumor surgery according to claim 3, characterized in that: A guide rod (3) is mounted on the top rod (1), and a guide hole cooperating with the guide rod (3) is provided on the support plate (5).

5. The traction device for pediatric tumor surgery according to claim 1, characterized in that: A main contact switch (31) is installed on the lighting lamp (30), and an auxiliary contact switch (34) that cooperates with the main contact switch (31) is installed on the top rod (1).

6. A traction device for pediatric tumor surgery according to claim 5, characterized in that: A rotating block (32) is installed on the third rotating rod (23), a rotating groove cooperating with the rotating block (32) is provided on the top rod (1), a plurality of rotating cavities are provided on the rotating block (32), and a ball (33) is rotatably installed inside the rotating cavity.

7. The traction device for pediatric tumor surgery according to claim 3, characterized in that: The opening assembly comprises a support rod (6), a top plate (7) and a paddle (8); a plurality of support rods (6) are installed at the bottom of the support plate (5); one end of the support rod (6) is connected to the top plate (7); and a paddle (8) is installed at the bottom of the top plate (7).

8. The traction device for pediatric tumor surgery according to claim 1, characterized in that: The second transmission assembly comprises a first main pulley (22), a first belt (21), a first auxiliary pulley (20), a first rotating rod (15), a second auxiliary pulley (18), a second main pulley (17), a second belt (19), a second rotating rod (16), a second gear (27) and a third rack (28); a plurality of first main pulleys (22) are mounted on the third rotating rod (23); a first rotating rod (15) is rotatably mounted on the top rod (1); a first auxiliary pulley (20) is mounted on the first rotating rod (15); and the first main pulley (22) is The first auxiliary pulley (20) is connected via a first belt (21); a second rotating rod (16) is rotatably mounted on the support leg (4); a second main pulley (17) is mounted on the second rotating rod (16); a second auxiliary pulley (18) is mounted on the first rotating rod (15); the second auxiliary pulley (18) is connected to the second main pulley (17) via a second belt (19); a second gear (27) is mounted on the second rotating rod (16); and a third rack (28) meshingly connected to the second gear (27) is mounted on the top of the positioning assembly.

9. A traction device for pediatric tumor surgery according to claim 8, characterized in that: The positioning assembly comprises a positioning leg (29), a base plate (25) and a suction cup (26); the positioning leg (29) is slidably mounted on the support leg (4); the bottom of the positioning leg (29) is mounted with a base plate (25); the bottom of the base plate (25) is mounted with a plurality of suction cups (26); the top of the positioning leg (29) is mounted with the third rack (28); the first rotating rod (15) is rotatably connected to the top rod (1) via a first bearing; and the second rotating rod (16) is rotatably connected to the support leg (4) via a second bearing.

10. The traction device for pediatric tumor surgery according to claim 1, characterized in that: A torque spring (36) is installed inside the lighting block (35), a reel (37) is installed on the torque spring (36), a connecting strip (38) is installed on the reel (37), one end of the connecting strip (38) is connected to the lighting lamp (30), an insert block (39) is installed on the lighting lamp (30), a connecting groove that cooperates with the insert block (39) is opened on the lighting block (35), and a baffle (40) is installed on the reel (37).

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