Anorectal surgery retractor

Abstract

The present invention discloses a retractor for anorectal surgery, comprising: a frame, a left suction cup seat, a right suction cup seat, a left pulling assembly and a right pulling assembly; the frame is a hollow annular or semi-annular structure; the left suction cup seat and the right suction cup seat are installed on the lower side of the frame opposite to each other; the bottoms of the left suction cup seat and the right suction cup seat are both provided with a plurality of flexible suction cups; the left pulling assembly and the right pulling assembly are installed on the lower side of the frame opposite to each other, and the left pulling assembly is located above the left suction cup seat, and the right pulling assembly is located above the right suction cup seat; the left pulling assembly and the right pulling assembly are respectively used to pull and spread the buttocks on the left and right sides of the anus of a person to the sides. The retractor can be stably fixed on the buttocks of anorectal surgery patients, spread the buttocks and keep them fixed, so that the surgical field is fully exposed and the operation is convenient; at the same time, it can liberate manpower and reduce surgical assistants, and some small anorectal surgeries can be completed by the surgeon alone.

Description

Technical Field

[0001] The invention belongs to the technical field of medical instruments, and in particular relates to a retractor for anorectal surgery. Background Art

[0002] During anorectal surgery, the buttocks on both sides need to be pulled apart to expose the anus and anal canal. At present, the traditional clinical practice is for specialized medical personnel to pull the patient's buttocks apart. In some operations, in order to better expose the anal canal, more than two assistants are even required to work together. This type of surgery usually adopts the lithotomy position, and the surgical operation area is limited to between the patient's legs, which can generally only accommodate one operator. It is difficult for assistants to have a comfortable standing position. In addition, some anorectal operations may take more than 1 hour, during which the buttocks need to be kept apart. This requires medical personnel to maintain the same action for a long time, which will inevitably result in hand fatigue. It is not only labor-intensive, but also the surgical field exposure often does not achieve satisfactory results. The operator's own operating space is also occupied by assistants, affecting the surgical effect. Summary of the invention

[0003] In order to solve the above technical problems, the present invention discloses a retractor for anorectal surgery, which can assist medical personnel in performing anorectal surgery.

[0004] The present invention is achieved through the following technical scheme: an anorectal surgery retractor, comprising: a frame, a left suction cup seat, a right suction cup seat, a left pulling assembly and a right pulling assembly; the frame is a hollow ring-shaped or semi-ring-shaped structure; the left suction cup seat and the right suction cup seat are installed on the lower side of the frame opposite to each other; the bottom of the left suction cup seat and the right suction cup seat are both provided with a plurality of flexible suction cups; the left pulling assembly and the right pulling assembly are installed on the lower side of the frame opposite to each other, and the left pulling assembly is located above the left suction cup seat, and the right pulling assembly is located above the right suction cup seat; the left pulling assembly and the right pulling assembly are respectively used to pull and spread the buttocks on the left and right sides of the anus of a person to both sides.

[0005] On the basis of the above technical solutions, the present invention may also have the following further optimization solutions.

[0006] Furthermore, the frame is a left-right symmetrical structure; the left suction cup seat is installed on the left side below the frame through the left upright pole, and the top of the left upright pole is fixedly connected to the bottom of the frame, and the bottom of the left upright pole is rotatably connected to the top of the left suction cup seat, and the rotation axis is a longitudinal horizontal line; the right suction cup seat is installed on the right side below the frame through the right upright pole, and the top of the right upright pole is fixedly connected to the bottom of the frame, and the bottom of the right upright pole is rotatably connected to the top of the right suction cup seat, and the rotation axis is a longitudinal horizontal line.

[0007] Furthermore, the left suction cup seat and the right suction cup seat are arc-shaped plate structures with left-right symmetrical structures, and the center of curvature of the arc is located in the center of the frame; the flexible suction cup is made of silicone material.

[0008] Furthermore, the anorectal surgery retractor also includes a front suction cup seat installed on the lower front side of the frame; a plurality of flexible suction cups are provided at the bottom of the front suction cup seat.

[0009] Further, the front suction cup seat is installed below the frame through a height adjustment assembly;

[0010] The distance between the front suction cup seat and the frame can be adjusted by the adjustment component.

[0011] Further, the height adjustment assembly includes a front upright rod, a front adjustment screw rod and a front cross rod;

[0012] There are two front upright poles, which are arranged vertically on the upper part of the front suction cup seat at intervals on the left and right sides. The frame is provided with two first guide holes adapted to the front upright poles, and the front upright poles can slide up and down along the first guide holes;

[0013] The bottom of the front upright pole is rotatably connected to the top of the front suction cup seat, and the rotation axis is parallel to the horizontal line;

[0014] The front cross bar is horizontally arranged and fixedly connected between the two front vertical bars;

[0015] The upper part of the front adjusting screw is threadedly connected to the frame, and the lower part is limited and rotationally connected to the front cross bar. By rotating the front adjusting screw, the front suction cup seat can be driven to move up and down.

[0016] Furthermore, the left pulling assembly and the right pulling assembly each include a contoured claw, a pulling rod, a transverse adjustment screw, a fixing block, a longitudinal adjustment screw and a transverse adjustment hand wheel;

[0017] The longitudinal adjustment screw is arranged vertically and is threadedly connected to the frame;

[0018] The lower part of the longitudinal adjustment screw is limited and rotatably connected to the top of the fixing block;

[0019] A transverse guide hole adapted to the pulling rod is provided at the lower part of the fixing block, one end of the pulling rod passes through the transverse guide hole, and the other end is fixedly connected to the contour claw;

[0020] The profiling claw has a plurality of rake teeth extending downward, and a flexible suction cup is provided on one side of each rake tooth;

[0021] The transverse adjustment screw and the pulling rod are arranged horizontally and parallel to each other;

[0022] One end of the lateral adjustment screw rod away from the center of the frame is fixedly connected to the lateral adjustment hand wheel, and the other end is limited and rotatably connected to the side of the pulling rod. At the same time, the lateral adjustment screw rod passes through the fixing block and is threadedly connected to the fixing block.

[0023] By rotating the lateral adjustment hand wheel, the pulling rod can be driven to move left and right;

[0024] By rotating the longitudinal adjustment screw, the fixing block can be driven to move up and down.

[0025] Further, the anorectal surgery retractor also includes a pressing component;

[0026] The pressing assembly is arranged above the frame and is used to fix the anorectal scope and drive it to move up and down.

[0027] Further, the pressing assembly includes a crossbeam, a transverse slider, a pressing adjustment screw and a fixing ring;

[0028] The crossbeam is placed horizontally on the frame, and its two ends are slidably connected to the slide grooves arranged on the left and right sides of the frame respectively, and the crossbeam can move forward and backward along the slide grooves;

[0029] The transverse sliding block is provided with a transverse sliding hole, and the transverse sliding hole is sleeved on the transverse beam and can move left and right along the transverse beam;

[0030] The depression adjustment screw is arranged vertically and passes through the transverse slider and is threadedly connected thereto;

[0031] The bottom of the depressed adjusting screw is position-limited and rotationally connected to the fixing ring.

[0032] Furthermore, the fixing ring includes a fixing part, a guide column and a clamping ring; the bottom of the push-down adjusting screw is limited and rotatably connected to the fixing part; the guide column is vertically arranged, and its bottom is fixed to the upper side of the fixing part, and the transverse sliding block is provided with a longitudinal sliding hole adapted to the guide column, and the upper part of the guide column passes through the longitudinal sliding hole; the clamping ring is a two-petal structure formed by two semi-annular rod bodies, the ends of the two rod bodies are connected together by a spring, and the two rod bodies are always kept clamped inward by the action of the spring; the inner sides of the two rod bodies are provided with a gap extending along the circumference of the rod body, and when working, the upper periphery of the anorectal scope can be stuck in the surgical gap.

[0033] The anorectal surgery retractor provided by the present invention has the following beneficial technical effects compared with the prior art:

[0034] 1. It can be stably fixed on the buttocks of patients undergoing anorectal surgery, and the buttocks can be spread apart and kept fixed, so that the surgical field is fully exposed and the operation is convenient;

[0035] 2. Free up manpower and reduce the number of surgical assistants. Some minor anorectal surgeries can be completed by the surgeon alone. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a three-dimensional structural schematic diagram of a specific embodiment of an anorectal surgery retractor disclosed in the present invention;

[0037] Figure 2 for Figure 1 A schematic structural diagram of another angle of a specific embodiment of a retractor for anorectal surgery is shown;

[0038] Figure 3 for Figure 1 A schematic diagram of a partially disassembled structure of a specific embodiment of a retractor for anorectal surgery is shown;

[0039] Figure 4 for Figure 3 A schematic structural diagram of the disassembled structure from another angle;

[0040] Figure 5 for Figure 1 Another partially disassembled structural schematic diagram of a specific embodiment of a retractor for anorectal surgery is shown;

[0041] Figure 6 for Figure 1 A schematic diagram of another partially disassembled structure of a specific embodiment of a retractor for anorectal surgery is shown;

[0042] Among them, the part numbers in the figure are represented as follows:

[0043] 1. Frame, 2. Left suction cup seat, 3. Right suction cup seat, 4. Left pulling assembly, 5. Right pulling assembly, 6. Flexible suction cup, 71. Left vertical pole, 72. Right vertical pole, 8. Front suction cup seat, 9. Height adjustment assembly, 91. Front vertical pole, 92. Front adjustment screw, 93. Front cross bar, 451. Profiling claw, 452. Pulling rod, 453. Lateral adjustment screw, 454. Fixed block, 455. Longitudinal adjustment screw, 456. Lateral adjustment hand wheel , 457, transverse guide hole, 458, rake teeth, 10, pressing down assembly, 101, crossbeam, 102, transverse slider, 103, pressing down adjusting screw, 104, fixing ring, 1011, limiting column, 1012, slide groove, 1013, first guide hole, 1021, transverse slide hole, 1022, longitudinal slide hole, 1041, fixing part, 1042, guide column, 1043, clamping ring, 1044, gap, 100, anorectal endoscope. DETAILED DESCRIPTION

[0044] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. The principles and features of the present invention are described below in combination with the accompanying drawings. It should be noted that the accompanying drawings are only schematic diagrams for illustrating the present invention, rather than real physical projection diagrams; in addition, the embodiments and features in the embodiments of the present application can be combined with each other without conflict. The examples cited are only used to explain the present invention and are not used to limit the scope of the present invention.

[0045] Please refer to Figures 1 to 6 , Figure 1 It is a three-dimensional structural schematic diagram of a specific embodiment of an anorectal surgery retractor disclosed in the present invention, showing the installation and arrangement of the overall structure; Figure 2 for Figure 1 A schematic structural diagram of another angle of a specific embodiment of a retractor for anorectal surgery is shown; Figure 3 for Figure 1 The schematic diagram of a partial disassembled structure of a specific embodiment of a retractor for anorectal surgery is shown, mainly showing the structural design of a left suction cup seat, a right suction cup seat and a front suction cup seat; Figure 4 for Figure 3 A schematic structural diagram of the disassembled structure from another angle; Figure 5 for Figure 1 Another partial disassembled structural schematic diagram of a specific embodiment of an anorectal surgery retractor is shown, mainly showing the structural design of the left retracting component and the right retracting component; Figure 6 for Figure 1 Another partially disassembled structural schematic diagram of a specific embodiment of an anorectal surgery retractor is shown, mainly showing the structural design of the pressing component.

[0046] It should be noted that the "front", "back", "left" and "right" indicated in the accompanying drawings refer to the patient being in a prone position during surgery, with the head at the "front" and the buttocks at the "back", the left hand direction being "left" and the right hand direction being "right". In addition, the "longitudinal" mentioned in this article refers to the front-back direction, and the transverse direction refers to the left-right direction.

[0047] like Figures 1 to 6 As shown, the present invention provides a structural schematic diagram of a specific embodiment of an anorectal surgical retractor, including: a frame 1, a left suction cup seat 2, a right suction cup seat 3, a left pulling assembly 4 and a right pulling assembly 5; the frame 1 is mainly used to be placed above the patient's buttocks and support other components, and needs to have a certain strength. It can be made of metal, but as light as possible, such as aluminum alloy or plastic with sufficient strength. The frame 1 can be a hollow annular or semi-annular structure. In this embodiment, the annular structure is preferred. The hollow annular or semi-annular structure mentioned here can be an irregular shape structure. The purpose of the hollow structure is to use this space as a surgical operation space. During the operation, the patient's anus should be in the hollow part of the frame 1.

[0048] The left suction cup seat 2 and the right suction cup seat 3 are installed opposite to each other on the lower side of the frame 1; a plurality of flexible suction cups 6 are provided at the bottom of the left suction cup seat 2 and the right suction cup seat 3; the left pulling component 4 and the right pulling component 5 are installed opposite to each other under the frame 1, and the left pulling component 4 is located above the left suction cup seat 2, and the right pulling component 5 is located above the right suction cup seat 3.

[0049] When in use, after adjusting the position of the left suction cup seat 2 and the right suction cup seat 3, press and place them on both sides of the patient's anus, use the adsorption force of the flexible suction cup 6 to keep the entire retractor fixed, and then use the left traction component 4 and the right traction component 5 to pull the buttocks on the left and right sides of the person's anus to both sides. In this way, the traction action in anorectal surgery can be completed instead of medical staff, which solves the various problems caused by manually maintaining the same traction action for a long time in the prior art. At the same time, since the number of auxiliary personnel is reduced, the corresponding operating space is freed up for the surgeon, which is more conducive to the smooth progress of the operation and improves the quality of the operation.

[0050] Specifically, in order to facilitate processing and subsequent installation, the frame 1 is a left-right symmetrical structure, and the left suction cup seat 2 and the right suction cup seat 3, the left pulling component 4 and the right pulling component 5 are also designed to be a left-right symmetrical structure.

[0051] The left suction cup seat 2 is installed on the left side below the frame 1 through the left vertical rod 71, and the top of the left vertical rod 71 is fixedly connected to the bottom of the frame 1, and the bottom of the left vertical rod 71 is rotatably connected to the top of the left suction cup seat 2, and its rotation axis is a longitudinal horizontal line; the right suction cup seat 3 is installed on the right side below the frame 1 through the right vertical rod 72, and the top of the right vertical rod 72 is fixedly connected to the bottom of the frame 1, and the bottom of the right vertical rod 72 is rotatably connected to the top of the right suction cup seat 3, and its rotation axis is a longitudinal horizontal line. Among them, there are two left vertical rods 71 ​​and right vertical rods 72, respectively, which are arranged vertically. Through the two-point connection method, the left suction cup seat 2 and the right suction cup seat 3 can be kept more stable. At the same time, since the buttocks surface is not a plane in the human body structure, when the retractor is fixed to the buttocks, the surfaces where the two areas of the left suction cup seat 2 and the right suction cup seat 3 are located will have different angles due to the different fat and thin patients. Therefore, by rotating the left suction cup seat 2 and the right suction cup seat 3 respectively with the left vertical rod 71 and the right vertical rod 72, the angles required by the two suction cup seats during installation can be freely adjusted so that both suction cup seats can be pressed positively on the skin surface for greater stability. At the same time, when in use, when the retractor is not directly facing the anus but offset to the left or right, it can also be stably adsorbed to ensure normal use.

[0052] In order to better fit the human body, the left suction cup seat 2 and the right suction cup seat 3 are arc-shaped plate structures with left-right symmetrical structures, which can be rigid plates or flexible plates, and the center of curvature of the arc is located in the center of the frame 1.

[0053] There are multiple flexible suction cups 6, evenly distributed under the left suction cup seat 2 and the right suction cup seat 3. The material can be silicone. To further improve the adsorption force, each flexible suction cup 6 can also be connected to a negative pressure system to be adsorbed and fixed by negative pressure attraction.

[0054] To further ensure that the instrument is firmly fixed, the anorectal surgery retractor provided by the present invention also includes a front suction cup seat 8 installed on the lower front side of the frame 1; the bottom of the front suction cup seat 8 is provided with a plurality of flexible suction cups 6. In this way, the entire instrument can be fixed to the left and right sides of the patient's buttocks and waist in three areas through the left suction cup seat 2, the right suction cup seat 3 and the front suction cup seat 8, and the structure is more stable, which can avoid slipping to the greatest extent.

[0055] A height adjustment component 9 is also provided between the front suction cup seat 8 and the frame 1. The front suction cup seat 8 is installed under the frame 1 through the height adjustment component 9; the distance between the front suction cup seat 8 and the frame 1 can be adjusted through the adjustment component.

[0056] The height adjustment assembly 9 has various structural forms, and a preferred implementation is: Figure 3 , Figure 4As shown, the height adjustment assembly 9 includes a front upright pole 91, a front adjusting screw rod 92 and a front cross rod 93; there are two front upright poles 91, which are arranged vertically on the upper part of the front suction cup seat 8 at intervals on the left and right, and two first guide holes 1013 adapted to the front upright poles 91 are provided on the frame 1, and the front upright poles 91 can slide up and down along the first guide holes 1013; the bottom of the front upright pole 91 is rotatably connected to the top of the front suction cup seat 8, and the rotation axis is parallel to the horizontal line; the front cross rod 93 is horizontally arranged and fixedly connected between the two front upright poles 91; the upper part of the front adjusting screw rod 92 is threadedly connected to the frame 1, and the lower part is limited and rotatably connected to the front cross rod 93, and the front suction cup seat 8 can be driven to move up and down by rotating the front adjusting screw rod 92. It should be noted that the "upper part of the front adjusting screw 92 is threadedly connected to the frame 1" mentioned here means that the shaft of the front adjusting screw 92 is threadedly connected to the frame 1 to form a threaded transmission mechanism. In addition, the "limited and rotational connection" means that the two are relatively fixed in the front-to-back, left-to-right, and up-and-down directions, but the two can rotate relative to each other. It can be understood that in the present invention, it is necessary to rotate the front adjusting screw 92 to drive the front cross bar 93 and the front suction cup seat 8 to move up and down, so the rotation axis between the front adjusting screw 92 and the front cross bar 93 is in the vertical direction, and the two can rotate relative to each other, but the relative position remains unchanged. The "limited and rotational connection" that appears in other descriptions of this article has the same meaning.

[0057] In the above structure, the two front uprights 91 are connected to the frame 1 to form a guide for the front uprights 91 to ensure its vertical up and down movement; and the two front uprights 91 can prevent the front suction cup seat 8 from twisting, thereby ensuring the position of the front suction cup seat 8; the threaded connection between the front adjusting screw 92 and the frame 1 forms a threaded transmission, and the height of the front suction cup seat 8 can be adjusted to be suitable for patients of different body types; the bottom of the front upright 91 is rotatably connected to the top of the front suction cup seat 8, and the rotation axis is parallel to the horizontal line, so the angle of the front suction cup seat 8 can be adjusted to adapt to the patient's body shape needs, making the entire instrument more stable and reliable.

[0058] Since the normal human body structure is a bilaterally symmetrical structure, in the present invention, the left pulling component 4 and the right pulling component 5 are designed to be bilaterally symmetrical structures, and their structural forms are the same. Figure 5As shown, the left pulling assembly 4 and the right pulling assembly 5 both include a profiling claw 451, a pulling rod 452, a lateral adjustment screw 453, a fixed block 454, a longitudinal adjustment screw 455 and a lateral adjustment hand wheel 456; the longitudinal adjustment screw 455 is arranged vertically and is threadedly connected to the frame 1; the lower part of the longitudinal adjustment screw 455 is limited and rotatably connected to the top of the fixed block 454; the lower part of the fixed block 454 is provided with a transverse guide hole 457 adapted to the pulling rod 452, one end of the pulling rod 452 passes through the transverse guide hole 457, and the other end is fixedly connected to the profiling claw 451; the profiling claw 451 is a plurality of rake teeth 458 extending downward, that is, the rake teeth 458 have a certain angle with the pulling rod, which may not be vertical, and a flexible suction cup 6 is provided on one side of each of the rake teeth 458; the flexible suction cup 6 here can be made of the same material as the suction cups under the aforementioned suction cup seats, and the sizes can be different. The flexible suction cups 6 on the rake teeth 458 can be better adsorbed on the skin on both sides of the anus without hurting the skin. The rake teeth 458 are similar to human fingers and can have a similar prying effect as human hands, and can better apply force.

[0059] The transverse adjustment screw 453 and the pulling rod 452 are arranged horizontally and parallel to each other; the end of the transverse adjustment screw 453 away from the center of the frame 1 is fixedly connected to the transverse adjustment hand wheel 456, and the other end is limited and rotatably connected to the side of the pulling rod 452. At the same time, the transverse adjustment screw 453 passes through the fixed block 454 and is threadedly connected to the fixed block 454; by rotating the transverse adjustment hand wheel 456, the pulling rod 452 can be driven to move left and right; by rotating the longitudinal adjustment screw 455, the fixed block 454 can be driven to move up and down.

[0060] Under the above structure, during surgery, the bionic claws can be close to the inner side of the skin on both sides of the anus by cooperating with the longitudinal adjustment screw 455 and the transverse adjustment screw 453. After adjusting the position, the two bionic claws can be driven to pull to both sides by rotating the transverse adjustment screw 453 to expose the surgical field. The longitudinal adjustment screw 455 and the frame 1 and the transverse adjustment screw 453 and the fixed block 454 are all threadedly connected and have a self-locking function. When the position is adjusted in place, it can be kept fixed and no rotation will occur. In order to improve efficiency and facilitate operation, a transverse adjustment handwheel 456 is installed at the end of the transverse adjustment screw 453. Of course, the upper end of the longitudinal adjustment screw 455 can also adopt this form, or it can be in the form of a knob.

[0061] In the present invention, the anorectal surgery retractor further comprises a pressing component 10. A preferred specific implementation is as follows: Figure 6As shown, the pressing assembly 10 is arranged above the frame 1, and is used to fix the anorectoscope 100 and drive it to move up and down. Specifically, the pressing assembly 10 includes a crossbeam 101, a transverse slider 102, a pressing adjustment screw 103 and a fixing ring 104; the crossbeam 101 is placed horizontally on the frame 1, and the frame 1 is provided with a long strip slide 1013 extending in the front-to-back direction, and the lower sides of both ends of the crossbeam 101 are provided with limit posts 1011 corresponding to the position of the slide 1013, and the two limit posts 1011 are respectively inserted into the slide 1013 on both sides to form a sliding connection, and the crossbeam 101 It can move forward and backward along the slide groove 1013, and the slide groove 1013 can guide the movement of the cross beam 101; the transverse slider 102 is provided with a transverse slide hole 1021, and the transverse slide hole 1021 is sleeved on the cross beam 101 and can move left and right along the cross beam 101; to prevent torsion, the cross beam 101 can be set to a non-cylindrical shape, such as a rectangular rod, an elliptical rod, etc., and accordingly, the transverse slide hole 1021 should be adapted to the shape of the cross beam 101. The depressing adjustment screw 103 is arranged vertically and passes through the transverse slider 102 and is threadedly connected thereto; the bottom of the depressing adjustment screw 103 is limited and rotatably connected to the fixing ring 104.

[0062] When in use, after fixing the anorectal scope 100 to the fixing ring 104, the horizontal slider 102 is slid left and right to make the anorectal scope 100 reach the anus, and then the height of the fixing ring 104 is adjusted by pressing the adjusting screw 103 to slowly implant it into the anus. To improve efficiency and facilitate operation, a rotating hand wheel can also be set at the upper end of the adjusting screw 103. Through this structure, the hands of medical personnel can be completely freed, and the retractor provided by the present invention can realize the functions of pulling, implanting, and holding required in anorectal surgery, which is easy to operate, safe and reliable.

[0063] As for the fixing ring 104, as a preferred embodiment, it includes a fixing part 1041, a guide post 1042 and a clamping ring 1043; the bottom of the pressing down adjusting screw 103 is limited and rotatably connected with the fixing part 1041; the guide post 1042 is arranged vertically, and its bottom is fixed to the upper side of the fixing part 1041; the transverse slider 102 is provided with a longitudinal sliding hole 1022 adapted to the guide post 1042, and the upper part of the guide post 1042 passes through the longitudinal sliding hole 1022. Through the arrangement of the pressing down adjusting screw 103 and the guide post 1042, firstly, a threaded transmission can be formed and has a self-locking function to prevent rotation after implantation; secondly, the guidance of the guide post 1042 can ensure that the anorectoscope 100 can move vertically up and down; thirdly, through the joint action of the pressing down adjusting screw 103 and the guide post 1042, the fixing part 1041 can be prevented from twisting when the pressing down adjusting screw 103 is rotated.

[0064] The clamp ring 1043 is a two-petal structure formed by two semi-circular rods. The ends of the two rods are connected together by a spring, which can be a torsion spring, and the two rods are always clamped inward by the force of the spring to ensure that the anorectoscope 100 is firmly fixed. The inner sides of the two rods are provided with a slit 1044 extending along the circumference of the rods. When working, the upper periphery of the anorectoscope 100 can be inserted into the surgical slit 1044. The slit 1044 here is an arc-shaped narrow groove starting from the inner sides of the two semi-circular rods. When in use, the two rods are spread apart and the upper periphery of the anorectoscope 100 is inserted into the narrow groove.

[0065] In summary, the anorectal surgery retractor provided in this application has the following beneficial technical effects:

[0066] 1. The left suction cup seat, the right suction cup seat and the front suction cup seat form three areas of fixation. The structure is reasonable and adjustable. It can be stably and firmly adsorbed on the human body and can also adapt to patients of various body shapes.

[0067] 2. The left pulling component and the right pulling component can be used to pull the skin on both sides of the anus, and the left pulling component and the right pulling component are height-adjustable, with better adaptability, and can replace the medical staff's pulling action to free their hands.

[0068] 3. It is equipped with a push-down component to assist the surgeon in implanting the anorectal scope. It can also keep the anorectal scope in a fixed position after implantation, further freeing the hands of medical staff.

[0069] 4. The whole device has a reasonable structure, and various adjustments are simple and convenient to operate. The threaded connection method is used to achieve a self-locking effect, achieving the necessary long-term maintenance effect during the operation, greatly improving the quality of the operation and work efficiency.

[0070] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "circumferential", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0071] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0072] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0073] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not limited to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0074] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A retractor for anorectal surgery, characterized in that: include: Frame, left suction cup seat, right suction cup seat, left pulling assembly and right pulling assembly; The frame is a hollow annular or semi-annular structure; The left suction cup seat and the right suction cup seat are installed on the lower side of the frame opposite to each other. A plurality of flexible suction cups are provided at the bottom of the left suction cup seat and the right suction cup seat; The left pulling assembly and the right pulling assembly are installed opposite to each other at the bottom of the frame, and the left pulling assembly is located above the left suction cup seat, and the right pulling assembly is located above the right suction cup seat; The left pulling assembly and the right pulling assembly are used to pull the buttocks on the left and right sides of the anus of a person to the sides respectively; The left pulling assembly and the right pulling assembly both include a contour claw, a pulling rod, a transverse adjustment screw, a fixing block, a longitudinal adjustment screw and a transverse adjustment hand wheel; The longitudinal adjustment screw is arranged vertically and is threadedly connected to the frame; The lower part of the longitudinal adjustment screw is limited and rotatably connected to the top of the fixing block; A transverse guide hole adapted to the pulling rod is provided at the lower part of the fixing block, one end of the pulling rod passes through the transverse guide hole, and the other end is fixedly connected to the contour claw; The profiling claw has a plurality of rake teeth extending downward, and a flexible suction cup is provided on one side of each rake tooth; The transverse adjustment screw and the pulling rod are arranged horizontally and parallel to each other; One end of the lateral adjustment screw rod away from the center of the frame is fixedly connected to the lateral adjustment hand wheel, and the other end is limited and rotatably connected to the side of the pulling rod. At the same time, the lateral adjustment screw rod passes through the fixing block and is threadedly connected to the fixing block. By rotating the lateral adjustment hand wheel, the pulling rod can be driven to move left and right; By rotating the longitudinal adjustment screw, the fixed block can be driven to move up and down; The anorectal surgery retractor also includes a pressing component; The pressing assembly is arranged above the frame and is used to fix the anorectal scope and drive it to move up and down.

2. The anorectal surgery retractor according to claim 1, characterized in that: The frame is a bilaterally symmetrical structure; The left suction cup seat is installed on the left side below the frame through the left vertical rod, and the top of the left vertical rod is fixedly connected to the bottom of the frame, and the bottom of the left vertical rod is rotatably connected to the top of the left suction cup seat, and the rotation axis is a longitudinal horizontal line; The right suction cup seat is installed on the right side below the frame through the right vertical rod, and the top of the right vertical rod is fixedly connected to the bottom of the frame, and the bottom of the right vertical rod is rotatably connected to the top of the right suction cup seat, and the rotation axis is a longitudinal horizontal line.

3. The anorectal surgery retractor according to claim 1, characterized in that: The left suction cup seat and the right suction cup seat are arc-shaped plate-like structures with left-right symmetry, and the center of curvature of the arc is located in the center of the frame; The flexible suction cup is made of silicone material.

4. The anorectal surgery retractor according to claim 1, characterized in that: The anorectal surgery retractor also includes a front suction cup seat mounted on the lower front side of the frame; A plurality of flexible suction cups are arranged at the bottom of the front suction cup seat.

5. The anorectal surgery retractor according to claim 4, characterized in that: The front suction cup seat is installed below the frame through a height adjustment assembly; The distance between the front suction cup seat and the frame can be adjusted by the adjustment component.

6. The anorectal surgery retractor according to claim 5, characterized in that: The height adjustment assembly includes a front upright rod, a front adjustment screw rod and a front cross rod; There are two front upright poles, which are arranged on the upper part of the front suction cup seat at intervals on the left and right sides. The frame is provided with two first guide holes adapted to the front upright poles, and the front upright poles can slide up and down along the first guide holes; The bottom of the front upright pole is rotatably connected to the top of the front suction cup seat, and the rotation axis is parallel to the horizontal line; The front cross bar is horizontally arranged and fixedly connected between the two front vertical bars; The upper part of the front adjusting screw is threadedly connected to the frame, and the lower part is limited and rotationally connected to the front cross bar. By rotating the front adjusting screw, the front suction cup seat can be driven to move up and down.

7. The anorectal surgery retractor according to claim 1, characterized in that: The pressing assembly includes a crossbeam, a transverse slider, a pressing adjustment screw and a fixing ring; The crossbeam is placed horizontally on the frame, and its two ends are slidably connected to the slide grooves arranged on the left and right sides of the frame respectively, and the crossbeam can move forward and backward along the slide grooves; The transverse sliding block is provided with a transverse sliding hole, and the transverse sliding hole is sleeved on the transverse beam and can move left and right along the transverse beam; The depression adjustment screw is arranged vertically and passes through the transverse slider and is threadedly connected thereto; The bottom of the depressed adjusting screw is position-limited and rotationally connected to the fixing ring.

8. The anorectal surgery retractor according to claim 7, characterized in that: The fixing ring includes a fixing portion, a guide column and a clamping ring; The bottom of the depressed adjustment screw is position-limited and rotationally connected to the fixing portion; The guide column is arranged vertically, and its bottom is fixed to the upper side of the fixing portion, the transverse sliding block is provided with a longitudinal sliding hole adapted to the guide column, and the upper part of the guide column passes through the longitudinal sliding hole; The clamping ring is a two-petal structure formed by two semi-circular rods, the ends of the two rods are connected together by a spring, and the two rods are always clamped inwards by the action of the spring; The inner sides of the two rod bodies are provided with gaps extending along the circumference of the rod bodies. When working, the upper peripheral edge of the anorectal scope can be stuck into the surgical gap.

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