Surgical retractor for colorectal cancer operation

Abstract

The invention provides a surgical retractor for colorectal cancer operation, and belongs to the technical field of surgical retractors. Comprising a damping shaft, and first connecting blocks are fixedly installed at the two ends of the damping shaft. Through the arranged adjusting structure, before the retractor is used, a push button is pushed to push the push button and a push rod from a convex groove of a limiting groove to a straight groove, after a straight-face wound supporting piece is moved to a proper position of a wound, the push button and the push rod are pushed to the corresponding convex groove, and at the moment, a clamping plate can be clamped on a first clamping groove in the lower portion of a connecting strip; the position of the push rod and the position of the straight-face wound supporting piece are fixed, so that the retractor is more convenient to adjust, one side of the straight-face wound supporting piece is arranged to be a plane, and the curved-face wound supporting piece is directly pulled down to rotate on one side of the connecting sleeve block through a hinge block so that the curved-face wound supporting piece can be perpendicular. The side, making contact with the wound, of the curved-surface wound supporting piece is a curved surface, and a proper curved surface can be selected according to the state of the wound.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of surgical retractors, in particular to a surgical retractor for colorectal cancer surgery. BACKGROUND

[0002] Surgical retractors, also known as retractor hooks, are essential basic instruments in surgical operations. In colorectal cancer surgery, their main function is to retract, pull apart or support the abdominal wall tissue at the incision edge and the organs inside the abdominal cavity, fully exposing the deep surgical field, so that the surgeon can safely and accurately operate.

[0003] In colorectal cancer surgery, surgical retractors are indispensable key equipment, whose main role is to fully expose the surgical field to provide a clear operating space for the surgeon to accurately perform lesion resection and anastomosis. Traditional or existing most retractors need to use tools such as screws and knobs or complex multi-step operations to adjust the position and angle of the support pieces (such as blades, retractor hooks). In the surgical environment, it is very time-consuming and inconvenient. The existing locking mechanism may loosen or shift due to tissue tension or accidental touch during the operation, resulting in unstable support effect, interfering with the surgical process. In addition, the incision position in colorectal cancer surgery is deep, the space is limited and the shape is various. The shape of the support pieces of the existing retractor is mostly single plane or fixed curve, which is difficult to flexibly and accurately adapt to different sizes, shapes and depths of the incision edge. It cannot provide the best and uniform exposure effect for complex anatomical regions. Moreover, many retractors need to be held by an assistant throughout the operation to maintain the position. Long-time holding can easily cause fatigue, which in turn can cause accidental displacement of the retractor, damaging the stability of the surgical field. Therefore, the present application provides a surgical retractor for colorectal cancer surgery to meet the needs. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a surgical retractor for colorectal cancer surgery to solve the problems of complex position adjustment, fatigue caused by full-time hand holding leading to displacement and single shape of support pieces of existing retractors, which cannot meet the needs of different types of incisions.

[0005] To solve the above technical problems, the present application provides the following technical solutions: A surgical retractor for colorectal cancer surgery, comprising a damping shaft, the two ends of the damping shaft are fixedly installed with first connecting blocks, the outer surface of the first connecting block is fixedly provided with a bracket with a clamp hand, the outer surface of the damping shaft is movably sleeved with a lifting rod in the middle, the top of the lifting rod is fixedly installed with a receiving block, one side of the receiving block is fixedly installed with an extension rod, one side of the extension rod is fixedly installed with an adjusting structure, and the two sides of the adjusting structure are provided with translation structures. The adjusting structure comprises an adjusting box, a limiting groove, a push rod, a push button, a clamping plate and a bearing plate, the adjusting box is fixedly installed at one end of the telescopic rod, a limiting groove is formed in the top of the adjusting box, the inner cavity of the limiting groove movably clamps the push rod, the top of the push rod is fixedly installed with a push button, the bottom of the push rod is fixedly installed with a push button, the bottom of the push button is fixedly installed with a clamping plate, the clamping plate is arranged on the top of the bearing plate, and the bearing plate is fixedly installed on the inside of the adjusting box.

[0006] The adjusting structure further comprises a vertical rod, a second connecting block and a receiving plate, the vertical rod is fixedly installed at the bottom of the clamping plate, the second connecting block is fixedly installed at the bottom of the vertical rod, and the receiving plate is fixedly installed at the bottom of the second connecting block.

[0007] The adjusting structure further comprises a bottom frame, a connecting strip and a first clamping groove, the bottom frame is fixedly installed at the bottom of the adjusting box, the connecting strip is fixedly installed in the middle of the inner cavity of the adjusting box, and the top and bottom of the connecting strip are provided with a first clamping groove.

[0008] The adjusting structure further comprises a fixed sleeve block, a first connecting sleeve rod, a translation sleeve block and a straight surface wound support piece, the fixed sleeve block is fixedly installed at the bottom of both sides of the receiving plate, the first connecting sleeve rod is movably hinged at the bottom of the fixed sleeve block, the translation sleeve block is movably hinged at the bottom of the first connecting sleeve rod, and the straight surface wound support piece is fixedly installed at the bottom of the translation sleeve block.

[0009] The adjusting structure further comprises a fixed plate, a connecting sleeve block, a hinge block and a curved surface wound support piece, the fixed plate is fixedly installed at the bottom of the straight surface wound support piece, the connecting sleeve block is fixedly installed on both sides of the fixed plate, the hinge block is movably sleeved in the inner cavity of the connecting sleeve block, and the curved surface wound support piece is fixedly installed on one side of the hinge block.

[0010] The translation structure comprises a horizontal rod, a connecting shaft and a second connecting sleeve rod, the horizontal rod is fixedly sleeved in the middle of the outer surface of the first connecting sleeve rod, the connecting shaft is fixedly installed in the inner cavity of the horizontal rod, and the second connecting sleeve rod is movably sleeved on one side of the outer surface of the connecting shaft.

[0011] The translation structure further comprises a connecting column, a clamping block and a second clamping groove, the connecting column is movably sleeved at one end of the second connecting sleeve rod, the clamping block is fixedly installed at one end of the connecting column, and the second clamping groove is movably clamped on the outer surface of the clamping block.

[0012] The translation structure further comprises a telescopic cylinder, a connecting plate and a vertical rod, one end of the telescopic cylinder is fixedly installed on one side of the second clamping groove, the connecting plate is fixedly installed on one side of the telescopic cylinder, and the vertical rod is fixedly installed on the top of the connecting plate.

[0013] The translation structure also includes a fixed sleeve, a limiting sleeve, a plug, a pull column, and a spring. The limiting sleeve is fixedly installed on both sides of the adjustment box. The pull column is movably sleeved on the upper part of the upright. A plug is fixedly installed at one end of the pull column. The fixed sleeve is movably engaged with the outer surface of the plug. A spring is fixedly connected to one side of the plug. Both the spring and the fixed sleeve are fixedly connected to one side of the outer surface of the upright.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects: 1. In the above solution, through the set adjustment structure, before using the retractor, push the push button to push it and the push rod from the protrusion of the limiting groove to the straight groove. After the straight wound support piece is moved to the appropriate position of the wound, push the push button and the push rod to the corresponding protrusion. At this time, the locking plate will lock in the first locking groove of the lower part of the connecting strip, thereby fixing the position of the push rod and the straight wound support piece, making the adjustment of the retractor more convenient. Furthermore, one side of the straight wound support piece is set as a plane, and through the set curved wound support piece, it can be directly pulled down and rotated on one side of the connecting sleeve block through the hinge block to make the curved wound support piece vertical. The side of the curved wound support piece that contacts the wound is curved, and the appropriate curved surface can be selected according to the state of the wound. 2. In the above scheme, through the set translation structure, when adjusting the retractor, according to the size of the wound, the pull column is pulled to make the insert block disengage from the limiting shell, and then the upright rod is lowered, thereby lowering the connecting plate and the connecting column. At this time, the upper ends of the two second connecting sleeve rods are squeezed, and the lower ends of the second connecting sleeve rods will move outward with the two crossbars, thereby adjusting the position of the straight wound support plate. After the adjustment is completed, the pull column is released, and through the elasticity of the spring, the insert block is inserted into the limiting shell for fixation, so that the retractor can support the wound in multiple directions.

[0015] 3. In the above solution, the retractor is held in place by the clamps on the operating table railing. The damping material of the connecting part of the damping shaft and the lifting rod, as well as the damping and telescopic adjustment function of the lifting rod and the telescopic rod, allow the entire retractor to be moved in all directions. The doctor does not need to hold the retractor at all times during surgery. Furthermore, thanks to its damping material, after the position of the retractor is adjusted, the lifting rod and the telescopic rod will not cause the retractor to move accidentally due to accidental operation. Attached Figure Description

[0016] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present disclosure and, together with the specification, further serve to explain the principles of the present disclosure and enable those skilled in the art to implement and use the present disclosure.

[0017] Figure 1 A three-dimensional structural diagram of a surgical retractor used in colorectal cancer surgery; Figure 2 It is a schematic view of a local structure of a surgical retractor for colorectal cancer surgery; Figure 3 It is a schematic view of an adjusting structure of a surgical retractor for colorectal cancer surgery; Figure 4 It is a schematic view of an adjusting structure of a surgical retractor for colorectal cancer surgery; Figure 5 It is a schematic view of a local structure of an adjusting structure of a surgical retractor for colorectal cancer surgery; Figure 6 It is a schematic view of a translation structure of a surgical retractor for colorectal cancer surgery; Figure 7 It is a schematic view of a local structure of a translation structure of a surgical retractor for colorectal cancer surgery; Figure 8 It is a schematic view of a sectional structure of a translation structure of a surgical retractor for colorectal cancer surgery.

[0018] [Reference signs] 1, damping shaft; 2, first connecting block; 3, clamping hand; 4, lifting rod; 5, receiving block; 6, telescopic rod; 7, adjusting structure; 8, translation structure; 71, adjusting box; 72, limiting groove; 73, push rod; 74, push button; 75, clamping plate; 76, bearing plate; 77, bottom frame; 78, vertical rod; 79, second connecting block; 710, receiving plate; 711, connecting strip; 712, first clamping groove; 713, fixed sleeve block; 714, first connecting sleeve rod; 715, translation sleeve block; 716, straight surface wound support piece; 717, fixed plate; 718, connecting sleeve block; 719, hinged block; 720, curved surface wound support piece; 81, horizontal rod; 82, connecting shaft; 83, second connecting sleeve rod; 84, connecting column; 85, clamping block; 86, second clamping groove; 87, telescopic cylinder; 88, connecting plate; 89, vertical rod; 810, fixed sleeve shell; 811, limiting shell; 812, insertion block; 813, pulling column; 814, spring.

[0019] As shown in the drawings, in order to clearly realize the structure of the embodiments of the present application, specific structures and devices are marked in the drawings, but this is only for the need of illustration, and is not intended to limit the present application in the specific structures, devices and environments, and those skilled in the art can adjust or modify these devices and environments according to specific needs, and the adjustment or modification still includes in the scope of the appended claims. DETAILED DESCRIPTION

[0020] The surgical retractor for colorectal cancer surgery provided by the present application will be described in detail below in combination with the drawings and specific embodiments. It should be noted that the following embodiments are the best, preferred embodiments, and other alternative embodiments can also be implemented by those skilled in the art for some known technologies; and the drawings are only used to more specifically describe the embodiments, and are not intended to specifically limit the present application.

[0021] It should be noted that in the specification, "one embodiment", "embodiment", "exemplary embodiment", "some embodiments" and the like indicate that the described embodiment can include a specific feature, structure or property, but not necessarily every embodiment includes this specific feature, structure or property. In addition, when a specific feature, structure or property is described in combination with an embodiment, it should be within the knowledge of those skilled in the related art to implement such a feature, structure or property in combination with other embodiments, whether or not it is explicitly described.

[0022] Generally, the terms can be understood at least in part from the context in which they are used. For example, depending on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular or can be used to describe combinations of features, structures, or characteristics, in the plural, without necessarily dictating whether the feature, structure, or characteristic is only one or more than one. In addition, the term "based on" can be understood as not necessarily intended to convey exclusivity in a set of factors, but can instead, at least in part, allow for the existence of other factors not explicitly described.

[0023] In addition, spatially relative terms such as "under", "below", "lower", "on", "upper" and the like can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the drawings. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the drawings. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein can be interpreted accordingly.

[0024] Embodiment 1 As shown in Figure 1 , Figure 2 and Figure 3 An embodiment of the present application provides a surgical retractor for colorectal cancer surgery, which comprises a damping shaft 1, first connecting blocks 2 are fixedly installed at both ends of the damping shaft 1, clamping hands 3 are fixedly installed on the outer surface of the first connecting blocks 2, a lifting rod 4 is movably sleeved in the middle of the outer surface of the damping shaft 1, a receiving block 5 is fixedly installed at the top of the lifting rod 4, an extension rod 6 is fixedly installed on one side of the receiving block 5, an adjusting structure 7 is fixedly installed on one side of the extension rod 6, and translation structures 8 are arranged on both sides of the adjusting structure 7; The adjusting structure 7 comprises an adjusting box 71, a limiting groove 72, a push rod 73, a push button 74, a clamping plate 75 and a bearing plate 76. The adjusting box 71 is fixedly installed at one end of the telescopic rod 6. The top of the adjusting box 71 is provided with the limiting groove 72. The inner cavity of the limiting groove 72 movably clamps the push rod 73. The top of the push rod 73 is fixedly installed with the push button 74. The bottom of the push rod 73 is fixedly installed with the push button 74. The bottom of the push button 74 is fixedly installed with the clamping plate 75. The clamping plate 75 is arranged at the top of the bearing plate 76. The bearing plate 76 is fixedly installed at the inner sides of the adjusting box 71.

[0025] Embodiment 2 As shown in Figure 4 and Figure 5 , the adjusting structure 7 further comprises a vertical rod 78, a second connecting block 79 and a receiving plate 710. The vertical rod 78 is fixedly installed at the bottom of the clamping plate 75. The bottom of the vertical rod 78 is fixedly installed with the second connecting block 79. The bottom of the second connecting block 79 is fixedly installed with the receiving plate 710. The adjusting structure 7 further comprises a bottom frame 77, a connecting strip 711 and a first clamping groove 712. The bottom frame 77 is fixedly installed at the bottom of the adjusting box 71. The connecting strip 711 is fixedly installed in the middle of the inner cavity of the adjusting box 71. The top and bottom of the connecting strip 711 are both provided with the first clamping groove 712. The adjusting structure 7 further comprises a fixed sleeve block 713, a first connecting sleeve rod 714, a translation sleeve block 715 and a straight surface wound support piece 716. The fixed sleeve block 713 is fixedly installed at the bottom of both sides of the receiving plate 710. The bottom of the fixed sleeve block 713 movably hingedly connects with the first connecting sleeve rod 714. The bottom of the first connecting sleeve rod 714 movably hingedly connects with the translation sleeve block 715. The bottom of the translation sleeve block 715 is fixedly installed with the straight surface wound support piece 716. The adjusting structure 7 further comprises a fixed plate 717, a connecting sleeve block 718, a hinged block 719 and a curved surface wound support piece 720. The fixed plate 717 is fixedly installed at the bottom of the straight surface wound support piece 716. The two sides of the fixed plate 717 are both fixedly installed with the connecting sleeve block 718. The inner cavity of the connecting sleeve block 718 movably sleeves the hinged block 719. One side of the hinged block 719 is fixedly installed with the curved surface wound support piece 720.

[0026] The push button 74 and the push rod 73 are pushed from the convex groove to the straight groove of the limiting groove 72. After the straight surface wound support piece 716 moves to the appropriate part of the wound, the push button 74 and the push rod 73 are pushed to the corresponding convex groove. At this time, the clamping plate 75 will be clamped on the first clamping groove 712 of the lower part of the connecting strip 711, so as to fix the position of the push rod 73 and the straight surface wound support piece 716, thereby making the adjustment of the retractor more convenient.

[0027] Embodiment 3 As shown in Figure 6 , Figure 7 and Figure 8As shown, the translation structure 8 comprises a cross rod 81, a connecting shaft 82 and a second connecting sleeve rod 83, the cross rod 81 is fixedly sleeved in the middle of the outer surface of the first connecting sleeve rod 714, the inner cavity of the cross rod 81 is fixedly installed with the connecting shaft 82, one side of the outer surface of the connecting shaft 82 movably sleeved with the second connecting sleeve rod 83, the translation structure 8 further comprises a connecting column 84, a clamping block 85 and a second clamping groove 86, the connecting column 84 movably sleeved at one end of the second connecting sleeve rod 83, one end of the connecting column 84 is fixedly installed with the clamping block 85, the outer surface of the clamping block 85 movably clamped with the second clamping groove 86, the translation structure 8 further comprises a telescopic cylinder 87, a connecting plate 88 and a vertical rod 89, one end of the telescopic cylinder 87 is fixedly installed on one side of the second clamping groove 86, one side of the telescopic cylinder 87 is fixedly installed with the connecting plate 88, the top of the connecting plate 88 is fixedly installed with the vertical rod 89, the translation structure 8 further comprises a fixed sleeve shell 810, a limiting shell 811, an insertion block 812, a pull column 813 and a spring 814, the limiting shell 811 is fixedly installed on both sides of the adjusting box 71, the pull column 813 movably sleeved on the upper part of the vertical rod 89, one end of the pull column 813 is fixedly installed with the insertion block 812, the outer surface of the insertion block 812 movably clamped with the fixed sleeve shell 810, one side of the insertion block 812 is fixedly connected with the spring 814, the spring 814 and the fixed sleeve shell 810 are both fixedly connected on one side of the outer surface of the vertical rod 89.

[0028] By pulling the pull column 813, the insertion block 812 is separated from the limiting shell 811, and then the vertical rod 89 is lowered, thereby the connecting plate 88 and the connecting column 84 are lowered, at this time, the upper ends of the two second connecting sleeve rods 83 are extruded, the lower ends of the second connecting sleeve rods 83 will take the two cross rods 81 to translate outward, thereby the position of the straight surface wound support piece 716 is adjusted, after the adjustment is completed, the pull column 813 is loosened, through the resilience of the spring 814, the insertion block 812 is inserted into the limiting shell 811 for fixation, so that the retractor can be multi-directional wound support.

[0029] The technical scheme provided by the present application firstly clamps the retractor on the guardrail of the operating bed through the clamping hand 3, and the whole retractor can be moved in all directions through the damping material of the damping shaft 1 and the lifting rod 4 sleeve part and the damping telescopic adjustment function of the lifting rod 4 and the telescopic rod 6, so that the doctor does not need to hold the retractor during the operation, and through the damping material, after the position of the retractor is adjusted, the lifting rod 4 and the telescopic rod 6 will not be moved due to accidental touch and the like, then before the retractor is used, the push button 74 is pushed to push the push rod 73 from the convex groove of the limiting groove 72 to the straight groove, after the straight wound support piece 716 is moved to the appropriate position of the wound, the push button 74 and the push rod 73 are pushed to the corresponding convex groove, at this time, the clamping plate 75 is clamped on the first clamping groove 712 of the lower part of the connecting strip 711, so that the position of the push rod 73 and the straight wound support piece 716 is fixed, so that the adjustment of the retractor is more convenient, and one side of the straight wound support piece 716 is provided as a plane, and through the curved wound support piece 720, the curved wound support piece 720 is vertically rotated by pulling down through the hinge block 719 on one side of the connecting sleeve block 718, and the side of the curved wound support piece 720 contacting the wound is curved, so that the appropriate curve can be selected according to the state of the wound, finally, when the retractor is adjusted, according to the size of the wound, the pull column 813 is pulled to make the plug block 812 separate from the limiting shell 811, then the vertical rod 89 is lowered, so that the connecting plate 88 and the connecting column 84 are lowered, at this time, the upper ends of the two second connecting sleeve rods 83 are extruded, the lower ends of the second connecting sleeve rods 83 are brought outwards with the two horizontal rods 81, so that the position of the straight wound support piece 716 is adjusted, after the adjustment is completed, the pull column 813 is loosened, through the resilience of the spring 814, so that the plug block 812 is inserted into the limiting shell 811 to be fixed, so that the retractor can be used to support the wound in multiple directions.

[0030] The present application encompasses any alternatives, modifications, equivalent methods and schemes made on the essence and scope of the present application. In order to make the public have a thorough understanding of the present application, specific details are described in the following preferred embodiments of the present application, and the present application can also be completely understood without the description of these details for those skilled in the art. In addition, in order to avoid unnecessary confusion to the essence of the present application, well-known methods, processes, procedures, elements and circuits are not described in detail.

[0031] Those skilled in the art can understand that all or part of the steps in the above-mentioned embodiment methods can be completed by programs instructing related hardware, and the programs can be stored in computer readable storage medium, such as ROM / RAM, magnetic disc, optical disc and the like.

[0032] The above merely describes the preferred embodiments of the present application, and it should be pointed out that, for those skilled in the art, some improvements and refinements can be made without departing from the principles of the present application, and these improvements and refinements should also be considered as falling within the protection scope of the present application.

Claims

1. A surgical retractor for colorectal cancer surgery, characterized by, The utility model provides a damping shaft (1), first connecting block (2) is fixedly installed to both ends of damping shaft (1), the outer surface of first connecting block (2) is fixedly provided with the clamp hand (3), the outer surface middle part of damping shaft (1) is movably sleeved with the lifting rod (4), the top of lifting rod (4) is fixedly installed with the bearing block (5), the side of bearing block (5) is fixedly installed with telescopic rod (6), the side of telescopic rod (6) is fixedly installed with the adjusting structure (7), both sides of adjusting structure (7) are provided with the translation structure (8); The adjusting structure (7) includes an adjusting box (71), a limiting groove (72), a push rod (73), a push button (74), a clamping plate (75), and a bearing plate (76), the adjusting box (71) is fixedly installed on one end of the telescopic rod (6), the top of the adjusting box (71) is provided with the limiting groove (72), the inner cavity of the limiting groove (72) is movably connected with the push rod (73), the top of the push rod (73) is fixedly installed with the push button (74), the bottom end of the push rod (73) is fixedly installed with the push button (74), the bottom of the push button (74) is fixedly installed with the clamping plate (75), the clamping plate (75) is arranged on the top of the bearing plate (76), and the bearing plate (76) is fixedly installed on both sides of the inside of the adjusting box (71).

2. A surgical retractor for colorectal surgery according to claim 1, wherein, The adjusting structure (7) further includes a vertical rod (78), a second connecting block (79), and a receiving plate (710), the vertical rod (78) is fixedly installed at the bottom of the clamping plate (75), the bottom of the vertical rod (78) is fixedly installed with the second connecting block (79), and the bottom of the second connecting block (79) is fixedly installed with the receiving plate (710).

3. A surgical retractor for colorectal surgery as claimed in claim 1, wherein, The adjusting structure (7) further includes a bottom frame (77), a connecting strip (711), and a first clamping groove (712), the bottom frame (77) is fixedly installed at the bottom of the adjusting box (71), the connecting strip (711) is fixedly installed in the middle of the inner cavity of the adjusting box (71), and the top and bottom of the connecting strip (711) are provided with the first clamping groove (712).

4. A surgical retractor for colorectal surgery as claimed in claim 1, wherein, The adjusting structure (7) further includes a fixed sleeve block (713), a first connecting sleeve rod (714), a translation sleeve block (715), and a straight surface wound support piece (716), the fixed sleeve block (713) is fixedly installed on both sides of the bottom of the receiving plate (710), the bottom of the fixed sleeve block (713) is movably connected with the first connecting sleeve rod (714), the bottom of the first connecting sleeve rod (714) is movably connected with the translation sleeve block (715), and the bottom of the translation sleeve block (715) is fixedly installed with the straight surface wound support piece (716).

5. A surgical retractor for colorectal surgery as claimed in claim 1, wherein, The adjusting structure (7) further includes a fixed plate (717), a connecting sleeve block (718), a hinged block (719) and a curved wound support sheet (720), the fixed plate (717) is fixedly installed at the bottom of the straight wound support sheet (716), the connecting sleeve block (718) is fixedly installed on both sides of the fixed plate (717), the hinged block (719) is movably sleeved in the inner cavity of the connecting sleeve block (718), and the curved wound support sheet (720) is fixedly installed on one side of the hinged block (719).

6. A surgical retractor for colorectal surgery according to claim 1, wherein, The translation structure (8) includes a cross rod (81), a connecting shaft (82) and a second connecting sleeve rod (83), the cross rod (81) is fixedly sleeved at the middle of the outer surface of the first connecting sleeve rod (714), the connecting shaft (82) is fixedly installed in the inner cavity of the cross rod (81), and the second connecting sleeve rod (83) is movably sleeved on one side of the outer surface of the connecting shaft (82).

7. A surgical retractor for colorectal surgery according to claim 1, wherein, The translation structure (8) further includes a connecting column (84), a clamping block (85) and a second clamping groove (86), the connecting column (84) is movably sleeved at one end of the second connecting sleeve rod (83), the clamping block (85) is fixedly installed at one end of the connecting column (84), and the second clamping groove (86) is movably clamped on the outer surface of the clamping block (85).

8. A surgical retractor for colorectal surgery according to claim 1, wherein, The translation structure (8) further includes a telescopic cylinder (87), a connecting plate (88) and a vertical rod (89), one end of the telescopic cylinder (87) is fixedly installed on one side of the second clamping groove (86), the connecting plate (88) is fixedly installed on one side of the telescopic cylinder (87), and the vertical rod (89) is fixedly installed at the top of the connecting plate (88).

9. A surgical retractor for colorectal surgery according to claim 1, wherein, The translation structure (8) further includes a fixed sleeve shell (810), a limiting shell (811), an insertion block (812), a pulling column (813) and a spring (814), the limiting shell (811) is fixedly installed on both sides of the adjusting box (71), the pulling column (813) is movably sleeved at the upper portion of the vertical rod (89), the insertion block (812) is fixedly installed at one end of the pulling column (813), the fixed sleeve shell (810) is movably clamped on the outer surface of the insertion block (812), the spring (814) is fixedly connected on one side of the insertion block (812), and the spring (814) and the fixed sleeve shell (810) are fixedly connected on one side of the outer surface of the vertical rod (89).

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