Adjustable traction device for surgical incision

Abstract

The invention relates to the technical field of medical auxiliary instruments, and provides an adjustable traction device for a surgical incision, which comprises an annular disc, through a mode of arranging a moving mechanism, an extruding mechanism and an adjustable limiting mechanism which are matched with each other, when the surgical incision is pulled, the moving mechanism drives the skin to be pulled to the outer side, and the annular disc is driven by the extruding mechanism; when a surgical incision is pulled to a proper position, the pulled skin compression and extrusion mechanism is driven, the rotating speed of a first gear is controlled through a speed reducer, the first gear adjusts the rotating angle of a connecting rod and a first rotating shaft through a second gear, and the first rotating shaft drives a second rotating shaft, a movable rod and a semicircular gear to rotate through a transmission belt; the semicircular gear rotates to be meshed with the second rectangular rack, the position of the mounting frame is limited, inward pushing force is formed on the skin around the surgical incision, the stability of the pulled surgical incision is guaranteed, the surgical incision is prevented from being further expanded, the safety of the device is improved, and follow-up rehabilitation is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of medical auxiliary equipment, and in particular to an adjustable traction device for surgical incisions. Background Art

[0002] Retractors, also known as retractors, are used to retract tissues to reveal the surgical scope and facilitate medical staff to explore and operate. There are various shapes and sizes, and you can choose the appropriate retractor according to the needs of the operation.

[0003] For example, the publication number CN113749701A discloses an adjustable traction device for surgical incision, which includes: a base, two traction components arranged at one end of the base and a gripping component arranged at the other end; it also includes: an adjustable component, which is symmetrically arranged at the left and right ends of the base; it includes an adjustment knob, a transmission shaft arranged at both sides and a transmission component used in conjunction with it; the traction component includes a retractor body and a connecting plate; the tail end of the connecting plate penetrates from the groove body on the rear side wall of the base and is movably connected to the transmission plate of the transmission component; a locking component, one end of which is arranged on the connecting plate and the other end can be snapped to the rear wall of the base. An adjustable traction device for surgical incision is provided, which can quickly adjust the distance between the retractors at both ends by setting an adjustable component, and can achieve the purpose of rapid traction by using double retractors, thereby effectively exposing the surgical field of view and shortening the surgical time.

[0004] However, in actual use, there are still the following problems:

[0005] 1. When the traction device is used to pull the surgical incision, since the periphery of the incision skin is not squeezed, the surgical incision will be further enlarged as the pulling force increases, which may cause damage to the surrounding tissues. Such damage may increase surgical complications and affect the patient's recovery;

[0006] 2. The position of the incision of the current traction device is relatively fixed, and the position and angle of the traction device cannot be adjusted in real time according to the range and angle of the surgical incision, which is limited in practicality and not conducive to subsequent operations;

[0007] 3. The height of the surgical hook cannot be adjusted, which may require the surgeon to over-twist or adjust the patient's position to adapt to the height of the surgical hook during the operation, thereby increasing the patient's risk and discomfort. The flexibility of the device is limited, and the surgeon may not be able to operate at the optimal angle and strength, affecting the surgical effect. Summary of the invention

[0008] The purpose of the present invention is to solve the problem that the periphery of the incision skin is not squeezed in the prior art. As the pulling force increases, the surgical incision will be further enlarged, which may cause damage to the surrounding tissues. Such damage may lead to an increase in surgical complications and affect the patient's recovery.

[0009] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an adjustable traction device for surgical incision, comprising an annular disk, the surface of the annular disk is movably provided with three groups of mounting shells, a moving mechanism is provided at the upper position of the inner cavity of the mounting shell, a driving mechanism is provided on one side of the outer surface of the mounting shell, an adjustable limiting mechanism used in conjunction with the driving mechanism is provided on the other side of the outer surface of the mounting shell, squeezing mechanisms are symmetrically provided on both sides of the moving mechanism, a lifting mechanism is provided at the inner end of the moving mechanism, a rotating moving mechanism is provided in the inner cavity of the mounting shell, and the lower surface of the mounting shell is connected to the mounting plate by a quick release mechanism;

[0010] The adjustable limiting mechanism includes a reducer, which is arranged on the other side of the outer surface of the mounting shell, and the outer end of the reducer is provided with a first gear for transmission, and a connecting rod is movably provided on the other side of the outer surface of the mounting shell and located below the reducer. The surface of the connecting rod is sequentially provided with a first rotating shaft and a second gear from the inside to the outside, and the second gear is meshed with the first gear. The surface of the first rotating shaft is connected to the second rotating shaft through a transmission belt, and a movable rod is provided at the axis center of the second rotating shaft, and semicircular gears are symmetrically provided on both sides of the surface of the movable rod.

[0011] As a preferred embodiment, the rotating movement mechanism includes a first motor, which is fixedly arranged on the inner top wall of the mounting shell, and the output end transmission of the first motor is provided with a planetary gear, and the outer surface of the annular disk is fixedly provided with a circular rack for matching and meshing with the planetary gear. A plurality of ball bearings are arranged on the inner side wall of the mounting shell, and a slide groove for matching with the ball bearings is opened on the inner side wall of the annular disk.

[0012] As a preferred embodiment, the moving mechanism includes a moving cavity, which is opened on the outer surface of the mounting shell and is located above the rotating moving mechanism. The inner top and bottom walls of the moving cavity are symmetrically provided with card grooves. A moving plate is slidably arranged inside the moving cavity. The upper and lower surfaces of the moving plate are fixedly provided with connecting blocks for sliding connection with the card grooves. An L-shaped block is fixedly arranged at the inner end of the moving plate, and a first rectangular rack is arranged at the center of the upper surface of the moving plate.

[0013] As a preferred embodiment, the driving mechanism includes a second motor, which is fixedly arranged at an upper position of the outer wall of the mounting shell, and the output end of the second motor is transmitted with a driving gear, and the driving gear is meshed with the first rectangular rack, and the output end of the second motor is directly connected to the input shaft of the reducer.

[0014] As a preferred embodiment, fixing plates are symmetrically fixed on both sides of the outer surface of the mounting shell, a T-block is slidably provided in the inner cavity of the fixing plate, a second rectangular rack is provided on the upper surface of the T-block, and the second rectangular rack is meshed with the semicircular gear, a mounting frame is fixedly provided at the inner end of the second rectangular rack, a telescopic rod is fixedly provided in the inner cavity of the mounting frame, a second extrusion block is fixedly provided at the end of the telescopic rod, second mounting blocks are symmetrically fixedly provided on both sides of the second extrusion block, a fixing frame is fixedly provided on the outer surface of the fixing plate, and the inner side wall of the fixing frame is movably connected to the movable rod.

[0015] As a preferred embodiment, the extrusion mechanism includes a support plate, which is fixedly arranged at the edge of the lower surface of the fixed plate, and a third guide rod is movably arranged in the inner cavity of the support plate, and the inner end of the third guide rod is fixedly connected to the outer surface of the mounting frame, and a third spring is fixedly arranged between the mounting frame and the support plate.

[0016] As a preferred embodiment, the lifting mechanism includes an installation cavity, which is symmetrically opened on the inner wall of the L-shaped block, and a screw is transmitted in the inner cavity of the installation cavity. The top end of the screw passes through the upper surface of the L-shaped block and is also transmitted with a turntable. A movable block is threadedly arranged on the surface of the screw, and a surgical retractor is fixedly arranged between the two groups of turntables. A first extrusion block is fixedly arranged on the bottom end of the surgical retractor, and first installation blocks are symmetrically fixedly arranged on both sides of the first extrusion block.

[0017] As a preferred embodiment, a second guide rod is slidably provided in the inner cavity of the first mounting block, and the second guide rod is slidably connected to the second mounting block, the two ends of the second guide rod are fixedly connected by a connecting frame, and the first mounting block and the second mounting block are fixedly connected by a second spring.

[0018] As a preferred embodiment, the quick-release mechanism includes a plug-in plate, which is symmetrically fixed on both sides of the upper surface of the mounting plate, and two groups of first guide rods are fixedly arranged in the inner cavity of the plug-in plate, and guide blocks are symmetrically and slidingly arranged on the surfaces of the two groups of the first guide rods, and the two groups of guide blocks are fixedly connected by a first spring, and a positioning rod is fixedly arranged on the outer surface of the guide block, and the positioning rod is connected to the plug-in plate, and the lower surface of the mounting shell is symmetrically provided with positioning holes for plugging and connecting with the positioning rods.

[0019] The parts of this device are all made of aluminum and titanium alloy. The retractors made of this material are lightweight, corrosion-resistant, and resistant to high-temperature and high-pressure disinfection. They are suitable for multiple uses. The device weighs 4-5KG. These heavier retractors are suitable for surgeries that require greater traction or more stable traction.

[0020] Compared with the prior art, the advantages and positive effects of the present invention are:

[0021] The present invention arranges a moving mechanism, a squeezing mechanism and an adjustable limiting mechanism in coordination. When the surgical incision is pulled, the moving mechanism drives the skin to be pulled outward, which drives the pulled skin to compress the squeezing mechanism, and controls the rotation speed of the first gear through the reducer. The first gear adjusts the rotation angle of the connecting rod and the first rotating shaft through the second gear. The first rotating shaft drives the second rotating shaft, the movable rod and the semicircular gear to rotate through the transmission belt. When the surgical incision is pulled to a suitable position, the semicircular gear rotates to mesh with the second rectangular rack, thereby limiting the position of the mounting frame and forming an inward pushing force on the skin around the surgical incision, thereby ensuring the stability of the surgical incision after traction, avoiding further expansion of the surgical incision, improving the safety of the device, and facilitating subsequent rehabilitation.

[0022] The present invention is provided with a rotating movement mechanism. When in use, the first motor drives the planetary gear to rotate, and the planetary gear moves in a circle along the circular rack, so that the position of the traction device is adjusted according to the position and angle of the surgical incision. The application range is wider and subsequent surgical operations are convenient.

[0023] The present invention is provided with a lifting mechanism. When in use, the turntable is turned to drive the screw to rotate, and the screw drives the movable block and the surgical retractor to slide up and down along the installation cavity. The surgical retractor drives the second extrusion block to stretch the telescopic rod downward through the first installation block, the second guide rod, the connecting frame and the second installation block, so that the first extrusion block and the second extrusion block can adjust their heights according to actual conditions, thereby improving the flexibility of the traction device, facilitating operation at the optimal angle and strength, and ensuring the subsequent safe and stable operation.

[0024] The present invention is achieved by BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the three-dimensional structure of an adjustable traction device for surgical incision provided by the present invention;

[0026] Figure 2 A schematic diagram of the structure of an annular disk of an adjustable traction device for surgical incision provided by the present invention;

[0027] Figure 3 A schematic diagram of the structure of a rotating movement mechanism of an adjustable traction device for surgical incision provided by the present invention;

[0028] Figure 4 A schematic diagram of the structure of a quick-release mechanism of an adjustable traction device for surgical incision provided by the present invention;

[0029] Figure 5 The present invention provides an adjustable traction device for surgical incision Figure 4 A schematic diagram of the structure enlargement in the middle;

[0030] Figure 6 A schematic diagram of the structure of an adjustable limiting mechanism of an adjustable traction device for surgical incision provided by the present invention;

[0031] Figure 7 The present invention provides an adjustable traction device for surgical incision Figure 6 A magnified schematic diagram of the structure at B in the middle;

[0032] Figure 8 The present invention provides an adjustable traction device for surgical incision Figure 6 A magnified schematic diagram of the structure at C in the middle;

[0033] Fig. 9 The present invention provides an adjustable traction device for surgical incision Figure 6 Enlarged schematic diagram of the structure at point D in the middle.

[0034] Legend:

[0035] 1. Annular plate; 2. Circular rack; 3. Slide; 4. Mounting shell; 5. First motor; 6. Planetary gear; 7. Mounting plate; 8. Plug-in plate; 9. First guide rod; 10. Guide block; 11. First spring; 12. Positioning rod; 13. Positioning hole; 14. Moving cavity; 15. Slot; 16. Second motor; 17. Driving gear; 18. Moving plate; 19. First rectangular rack; 20. Connecting block; 21. L-shaped block; 22. Mounting cavity; 23. Screw; 24. Turntable; 25. Movable block; 26. Surgical retractor; 261. First extrusion Block; 27, the first mounting block; 28, the mounting frame; 29, the telescopic rod; 30, the second extrusion block; 31, the second mounting block; 32, the connecting frame; 33, the second guide rod; 34, the second spring; 35, the fixing plate; 36, the T-block; 37, the second rectangular rack; 38, the fixing frame; 39, the reducer; 40, the first gear; 41, the connecting rod; 42, the first rotating shaft; 43, the second gear; 44, the transmission belt; 45, the second rotating shaft; 46, the movable rod; 47, the semicircular gear; 48, the support plate; 49, the third guide rod; 50, the third spring. DETAILED DESCRIPTION

[0036] 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.

[0037] See also Figure 1-9 The present invention provides a technical solution: an adjustable traction device for surgical incision, comprising an annular disk 1, three groups of mounting shells 4 are movably arranged on the surface of the annular disk 1, a moving mechanism is arranged above the inner cavity of the mounting shell 4, a driving mechanism is arranged on one side of the outer surface of the mounting shell 4, an adjustable limiting mechanism used in conjunction with the driving mechanism is arranged on the other side of the outer surface of the mounting shell 4, squeezing mechanisms are symmetrically arranged on both sides of the moving mechanism, a lifting mechanism is arranged at the inner end of the moving mechanism, a rotating moving mechanism is arranged in the inner cavity of the mounting shell 4, and the lower surface of the mounting shell 4 is connected to the mounting plate 7 by a quick release mechanism;

[0038] The adjustable limit mechanism includes a reducer 39, which is arranged on the other side of the outer surface of the mounting shell 4, and the outer end of the reducer 39 is provided with a first gear 40 for transmission. A connecting rod 41 is movably provided at the other side of the outer surface of the mounting shell 4 below the reducer 39. The surface of the connecting rod 41 is sequentially provided with a first rotating shaft 42 and a second gear 43 from the inside to the outside, and the second gear 43 is meshed with the first gear 40. The surface of the first rotating shaft 42 is connected to the second rotating shaft 45 through a transmission belt 44. A movable rod 46 is provided at the axis of the second rotating shaft 45, and semi-rotating rods 46 are symmetrically provided on both sides of the surface of the movable rod 46. The circular gear 47 and the reducer 39 control the rotation speed of the first gear 40. The first gear 40 adjusts the rotation angle of the connecting rod 41 and the first rotating shaft 42 through the second gear 43. The first rotating shaft 42 drives the second rotating shaft 45, the movable rod 46 and the semicircular gear 47 to rotate through the transmission belt 44. When the surgical incision is pulled to a suitable position, the semicircular gear 47 rotates to mesh with the second rectangular rack 37, limiting the position of the mounting frame 28, forming an inward pushing force on the skin around the surgical incision, ensuring the stability of the surgical incision after traction, avoiding further expansion of the surgical incision, improving the safety of the device, and facilitating subsequent rehabilitation.

[0039] like Figure 1-9As shown, the rotating movement mechanism includes a first motor 5, which is fixedly arranged on the inner top wall of the mounting shell 4, and a planetary gear 6 is arranged on the output end transmission of the first motor 5. A circular rack 2 for matching and meshing with the planetary gear 6 is fixedly arranged on the outer surface of the annular disk 1, and a plurality of balls are arranged on the inner side wall of the mounting shell 4. A slide groove 3 for matching with the ball is opened on the inner side wall of the annular disk 1. The first motor 5 drives the planetary gear 6 to rotate, and the planetary gear 6 moves in a circle along the circular rack 2, and the mounting shell 4 slides along the slide groove 3 through the ball, so as to adjust the position of the traction device according to the position and angle of the surgical incision, which has a wider range of applications and is convenient for subsequent surgical operations.

[0040] like Figure 1-9 As shown, the moving mechanism includes a moving cavity 14, which is opened on the outer surface of the mounting shell 4 and is located above the rotating moving mechanism. The inner top and bottom walls of the moving cavity 14 are symmetrically provided with card slots 15. A moving plate 18 is slidably arranged inside the moving cavity 14. The upper and lower surfaces of the moving plate 18 are fixedly provided with a connecting block 20 for sliding connection with the card slot 15. An L-shaped block 21 is fixedly arranged at the inner end of the moving plate 18. A first rectangular rack 19 is arranged at the center of the upper surface of the moving plate 18. The driving mechanism includes a second motor 16, which is fixedly arranged on the outer surface of the mounting shell 4. At the upper position of the side wall, the output end of the second motor 16 is provided with a driving gear 17, and the driving gear 17 is meshed with the first rectangular rack 19, and the output end of the second motor 16 is directly connected to the input shaft of the reducer 39, and the output end of the second motor 16 drives the driving gear 17 and the first rectangular rack 19 to rotate, and the driving gear 17 drives the movable plate 18 to move along the movable cavity 14 through the first rectangular rack 19, and the movable plate 18 slides in the slot 15 through the connecting block 20, and the movable plate 18 drives the L-shaped block 21 to move horizontally and stably to ensure the stability of the surgical incision traction.

[0041] like Figure 1-9As shown, a fixing plate 35 is symmetrically fixedly provided on both sides of the outer surface of the mounting shell 4, a T-block 36 is slidably provided in the inner cavity of the fixing plate 35, a second rectangular rack 37 is provided on the upper surface of the T-block 36, and the second rectangular rack 37 is meshed with the semicircular gear 47, a mounting frame 28 is fixedly provided at the inner end of the second rectangular rack 37, a telescopic rod 29 is fixedly provided in the inner cavity of the mounting frame 28, a second extrusion block 30 is fixedly provided at the end of the telescopic rod 29, and a second mounting block 31 is symmetrically fixedly provided on both sides of the second extrusion block 30, a fixing frame 38 is fixedly provided on the outer surface of the fixing plate 35, and the inner side wall of the fixing frame 38 is movably connected to the movable rod 46, The squeezing mechanism includes a support plate 48, which is fixedly arranged at the edge of the lower surface of the fixed plate 35. A third guide rod 49 is movably arranged in the inner cavity of the support plate 48, and the inner end of the third guide rod 49 is fixedly connected to the outer surface of the mounting frame 28, and a third spring 50 is fixedly arranged between the mounting frame 28 and the support plate 48. When the mounting frame 28 moves, it will synchronously drive the T-block 36 to slide along the inner cavity of the fixed plate 35, and the mounting frame 28 will synchronously drive the third guide rod 49 to slide along the support plate 48 and compress the third spring 50, thereby squeezing the pulled surgical incision inward to avoid further expansion of the surgical incision during the operation and further damage to the skin tissue.

[0042] like Figure 1-9 As shown, the lifting mechanism includes an installation cavity 22, which is symmetrically arranged on the inner side wall of the L-shaped block 21. A screw 23 is provided in the inner cavity of the installation cavity 22. The top of the screw 23 passes through the upper surface of the L-shaped block 21 and is provided with a turntable 24. A movable block 25 is provided on the surface of the screw 23. A surgical retractor 26 is fixedly provided between the two sets of turntables 24. A first extrusion block 261 is fixedly provided at the bottom end of the surgical retractor 26. First installation blocks 27 are symmetrically fixedly provided on both sides of the first extrusion block 261. The screw 23 is rotated by turning the turntable 24. The screw 23 drives the movable block 25 and the surgical retractor 26 to slide up and down along the installation cavity 22. The surgical retractor 26 drives the second extrusion block 30 to stretch the telescopic rod 29 downward through the first installation block 27, the second guide rod 33, the connecting frame 32 and the second installation block 31, so that the first extrusion block 261 and the second extrusion block 30 can adjust the height according to the actual situation, thereby improving the flexibility of the pulling device and facilitating the operation at the optimal angle and strength.

[0043] like Figure 1-9As shown, the inner cavity of the first mounting block 27 is slidably provided with a second guide rod 33, and the second guide rod 33 is slidably connected with the second mounting block 31, and the two ends of the second guide rod 33 are fixedly connected by a connecting frame 32, and the first mounting block 27 and the second mounting block 31 are fixedly connected by a second spring 34. When the surgical retractor 26 is raised or lowered, the second extrusion block 30 will be driven by the first mounting block 27, the second guide rod 33, the connecting frame 32 and the second mounting block 31 to stretch the telescopic rod 29 downward, so that the first extrusion block 261 and the second extrusion block 30 can adjust the height according to the actual situation, which is more convenient to use.

[0044] like Figure 1-9 As shown, the quick-release mechanism includes a plug-in board 8, which is symmetrically fixed on both sides of the upper surface of the mounting plate 7. Two groups of first guide rods 9 are fixedly arranged in the inner cavity of the plug-in board 8. Guide blocks 10 are symmetrically and slidably arranged on the surfaces of the two groups of first guide rods 9. The two groups of guide blocks 10 are fixedly connected by first springs 11. Positioning rods 12 are fixedly arranged on the outer surfaces of the guide blocks 10, and the positioning rods 12 are connected to the plug-in board 8. Positioning holes 13 for being plugged and connected with the positioning rods 12 are symmetrically opened on the lower surface of the mounting shell 4. The guide blocks 10 are pushed inward, and the guide blocks 10 slide toward each other in the first guide rods 9 and compress the first springs 11, so that the positioning rods 12 move into the inner cavity of the plug-in board 8. Subsequently, the plug-in board 8 is inserted into the lower surface of the mounting shell 4, and the guide blocks 10 are released. The first springs 11 drive the guide blocks 10 to reset, and the positioning rods 12 enter the positioning holes 13 for fixing. The disassembly and assembly are convenient, and subsequent maintenance is convenient.

[0045] Working principle: When assembling the device, firstly, the mounting shell 4 is sleeved on the surface of the annular disk 1, and the ball is located in the slide groove 3, and the planetary gear 6 is meshed with the surface of the slide groove 3. At this time, the mounting plate 7 is placed at the lower position of the mounting shell 4, and the guide block 10 is pushed inward. The guide block 10 slides toward each other in the first guide rod 9 and compresses the first spring 11, so that the positioning rod 12 moves to the inner cavity of the plug-in board 8, and then the plug-in board 8 is inserted into the lower surface of the mounting shell 4, and the guide block 10 is released. The first spring 11 drives the guide block 10 to reset, and the positioning rod 12 enters the positioning hole 13 for fixing. The assembly method is adopted, which is convenient for subsequent maintenance and ensures the stable operation of the pulling device.

[0046] When in use, the device is first installed on the shelf of the operating table, and then the surgical operation is performed; before the operation, the device is disinfected by a plasma disinfection cabinet, and then the device is powered by a plug. When the position of the first mounting block 27 is adjusted according to the surgical incision, the turntable 24 is turned to drive the screw 23 to rotate, and the screw 23 drives the movable block 25 and the surgical retractor 26 to slide up and down along the mounting cavity 22. The surgical retractor 26 drives the second extrusion block 30 to stretch the telescopic rod 29 downward through the first mounting block 27, the second guide rod 33, the connecting frame 32 and the second mounting block 31, so that the first extrusion block 261 and the second extrusion block 30 can adjust their heights according to actual conditions, thereby improving the flexibility of the traction device and facilitating the operation at the best angle and strength;

[0047] During traction, the first mounting block 27 is placed on the inner side of the incision skin, and the output end of the second motor 16 drives the driving gear 17 and the first rectangular rack 19 to rotate. The driving gear 17 drives the moving plate 18 to move along the moving cavity 14 through the first rectangular rack 19, and the moving plate 18 slides in the slot 15 through the connecting block 20. The moving plate 18 drives the L-shaped block 21 to move horizontally and stably to ensure the stability of the surgical incision traction. When the mounting frame 28 moves outward, it will drive the third guide rod 49 to slide in the support plate 48 and compress the third spring 50. When the first mounting block 27 drives the skin incision to be pulled outward, it will be subject to the inward pushing force of the mounting frame 28 on the skin. The reducer 39 controls the first gear 40 The first gear 40 adjusts the rotation angle of the connecting rod 41 and the first rotating shaft 42 through the second gear 43. The first rotating shaft 42 drives the second rotating shaft 45, the movable rod 46 and the semicircular gear 47 to rotate through the transmission belt 44. When the surgical incision is pulled to a suitable position, the semicircular gear 47 rotates to engage with the second rectangular rack 37, thereby limiting the position of the mounting frame 28 and forming an inward pushing force on the skin around the surgical incision, thereby ensuring the stability of the surgical incision after traction, avoiding further expansion of the surgical incision, ensuring the safe and stable progress of subsequent operations, and accelerating the subsequent recovery time of the patient. The device pulls the surgical incision in an artificially assisted electric manner, and is very convenient to use.

[0048] It should be noted that the material of the device is aluminum and titanium alloy. The retractor made of this material is lightweight, corrosion-resistant, and resistant to high-temperature and high-pressure sterilization. It is suitable for multiple uses. These heavier retractors are suitable for surgeries that require greater traction or more stable traction.

[0049] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An adjustable traction device for surgical incision, comprising an annular disk (1), characterized in that: The surface of the annular disk (1) is movably provided with three groups of mounting shells (4); a moving mechanism is provided above the inner cavity of the mounting shell (4); a driving mechanism is provided on one side of the outer surface of the mounting shell (4); an adjustable limiting mechanism used in conjunction with the driving mechanism is provided on the other side of the outer surface of the mounting shell (4); extrusion mechanisms are symmetrically provided on both sides of the moving mechanism; a lifting mechanism is provided at the inner end of the moving mechanism; a rotating moving mechanism is provided in the inner cavity of the mounting shell (4); and the lower surface of the mounting shell (4) is connected to the mounting plate (7) by a quick release mechanism; The adjustable limiting mechanism comprises a reducer (39), wherein the reducer (39) is arranged on the other side of the outer surface of the mounting shell (4), and the outer end of the reducer (39) is provided with a first gear (40) for transmission. A connecting rod (41) is movably provided on the other side of the outer surface of the mounting shell (4) below the reducer (39). The surface of the connecting rod (41) is provided with a first rotating shaft (42) and a second gear (43) in sequence from the inside to the outside, and the second gear (43) is meshed with the first gear (40). The surface of the first rotating shaft (42) is connected to the second rotating shaft (45) through a transmission belt (44). A movable rod (46) is provided at the axis of the second rotating shaft (45), and semicircular gears (47) are symmetrically provided on both sides of the surface of the movable rod (46).

2. The adjustable traction device for surgical incision according to claim 1, characterized in that: The rotary movement mechanism comprises a first motor (5), the first motor (5) being fixedly arranged on the inner top wall of the mounting housing (4), the output end of the first motor (5) being provided with a planetary gear (6), the outer surface of the annular disk (1) being fixedly provided with a circular rack (2) for matching and meshing with the planetary gear (6), the inner side wall of the mounting housing (4) being provided with a plurality of ball bearings, and the inner side wall of the annular disk (1) being provided with a slide groove (3) for matching with the ball bearings.

3. The adjustable traction device for surgical incision according to claim 1, characterized in that: The moving mechanism comprises a moving cavity (14), the moving cavity (14) being opened on the outer surface of the mounting shell (4) and located above the rotating moving mechanism, the inner top and bottom walls of the moving cavity (14) being symmetrically provided with card slots (15), a moving plate (18) being slidably arranged inside the moving cavity (14), a connecting block (20) being fixedly arranged on the upper and lower surfaces of the moving plate (18) for being slidably connected to the card slot (15), an L-shaped block (21) being fixedly arranged at the inner end of the moving plate (18), and a first rectangular rack (19) being arranged at the center of the upper surface of the moving plate (18).

4. The adjustable traction device for surgical incision according to claim 1, characterized in that: The driving mechanism comprises a second motor (16), the second motor (16) being fixedly arranged at an upper position of an outer side wall of the mounting housing (4), the output end of the second motor (16) being provided with a driving gear (17), and the driving gear (17) being meshed with a first rectangular rack (19), and the output end of the second motor (16) being directly connected to an input shaft of a reducer (39).

5. The adjustable traction device for surgical incision according to claim 1, characterized in that: A fixing plate (35) is symmetrically fixedly arranged on both sides of the outer surface of the mounting shell (4); a T-shaped block (36) is slidably arranged in the inner cavity of the fixing plate (35); a second rectangular rack (37) is arranged on the upper surface of the T-shaped block (36), and the second rectangular rack (37) is meshed with a semicircular gear (47); a mounting frame (28) is fixedly arranged at the inner end of the second rectangular rack (37); a telescopic rod (29) is fixedly arranged in the inner cavity of the mounting frame (28); a second extrusion block (30) is fixedly arranged at the end of the telescopic rod (29); second mounting blocks (31) are symmetrically fixedly arranged on both sides of the second extrusion block (30); a fixing frame (38) is fixedly arranged on the outer surface of the fixing plate (35), and the inner side wall of the fixing frame (38) is movably connected to the movable rod (46).

6. The adjustable traction device for surgical incision according to claim 1, characterized in that: The extrusion mechanism comprises a support plate (48), wherein the support plate (48) is fixedly arranged at the edge of the lower surface of the fixed plate (35), a third guide rod (49) is movably arranged in the inner cavity of the support plate (48), and the inner end of the third guide rod (49) is fixedly connected to the outer surface of the mounting frame (28), and a third spring (50) is fixedly arranged between the mounting frame (28) and the support plate (48).

7. The adjustable traction device for surgical incision according to claim 1, characterized in that: The lifting mechanism comprises an installation cavity (22), wherein the installation cavity (22) is symmetrically arranged on the inner side wall of the L-shaped block (21), a screw rod (23) is arranged in the inner cavity of the installation cavity (22), the top end of the screw rod (23) passes through the upper surface of the L-shaped block (21), and a rotating disk (24) is arranged in a transmission manner, a movable block (25) is arranged on the surface of the screw rod (23) in a threaded manner, a surgical retractor (26) is fixedly arranged between two groups of rotating disks (24), a first extrusion block (261) is fixedly arranged at the bottom end of the surgical retractor (26), and first installation blocks (27) are symmetrically fixedly arranged on both sides of the first extrusion block (261).

8. The adjustable traction device for surgical incision according to claim 7, characterized in that: A second guide rod (33) is slidably disposed in the inner cavity of the first mounting block (27), and the second guide rod (33) is slidably connected to the second mounting block (31), the two ends of the second guide rod (33) are fixedly connected via a connecting frame (32), and the first mounting block (27) and the second mounting block (31) are fixedly connected via a second spring (34).

9. The adjustable traction device for surgical incision according to claim 1, characterized in that: The quick-release mechanism comprises a plug-in plate (8), wherein the plug-in plate (8) is symmetrically fixedly arranged on both sides of the upper surface of the mounting plate (7), two groups of first guide rods (9) are fixedly arranged in the inner cavity of the plug-in plate (8), and guide blocks (10) are symmetrically and slidably arranged on the surfaces of the two groups of the first guide rods (9), and the two groups of the guide blocks (10) are fixedly connected by a first spring (11), and a positioning rod (12) is fixedly arranged on the outer surface of the guide block (10), and the positioning rod (12) is connected to the plug-in plate (8), and the lower surface of the mounting shell (4) is symmetrically provided with positioning holes (13) for plugging and connecting with the positioning rods (12).

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