Surgical retractor for single-port laparoscope

Abstract

The invention provides a surgical retractor for a single-port laparoscope, and relates to the technical field of laparoscopic surgery retractors, the surgical retractor comprises a retractor body and a placement assembly, an adjusting assembly is arranged below the placement assembly, the placement assembly comprises a fixing plate, the fixing plate is installed on the adjusting assembly, and the adjusting assembly is arranged on the fixing plate. Two fixing blocks are fixedly connected to one side of the fixing plate, arc-shaped recesses are formed in the fixing blocks, and arc-shaped plates are rotationally connected to the two sides of the fixing blocks. According to the medical traction device, the placement assembly is arranged, medical staff hold the traction device body by hand, the organ is dragged, clamping of the organ is maintained through a mechanical lock of the medical staff, the placement assembly moves to one side of the traction device body for dragging the organ, and the traction device body is placed on the placement assembly, so that the medical staff are liberated, and the medical staff can conveniently assist a surgeon; meanwhile, the situation that medical staff hold the tractor body by hand, space around an operating table is occupied, and interference is caused to a surgeon is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of laparoscopic surgical retractors, and in particular relates to a surgical retractor used for a single-port laparoscope. Background Art

[0002] The main functions of the retractor for single-port laparoscopic surgery are to expose the surgical field, fix tissues and organs, and assist in surgical operations. The operating space of single-port laparoscopic surgery is limited. The retractor can pull the surrounding tissues and organs apart to fully expose the surgical site, allowing the doctor to clearly see the anatomical structure of the surgical area. It is often used in gynecological related surgeries, such as myomectomy and hysterectomy. It can help doctors pull the uterus to the appropriate position, expose the surgical field, facilitate operations on the uterus, such as separating tissues, removing lesions, etc., reduce shadows and blind spots, and allow doctors to observe the details of the surgical area more clearly.

[0003] When using a retractor, it is mostly operated by medical staff, who insert the laparoscope into the human body to clamp and retract the internal organs, exposing the surgical area for the surgeon to perform the operation. However, most existing retractors are held by medical staff to maintain stability and make corresponding fine adjustments. The weight of the entire retractor is on the arms of the medical staff, and holding the retractor for a long time can easily lead to muscle fatigue. At the same time, if the medical staff stands on the side of the surgeon for a long time, it is easy to interfere with the surgeon's operation, which is inconvenient. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a surgical retractor for a single-port laparoscope to more accurately solve the above problems.

[0005] The present invention is achieved through the following technical solutions:

[0006] The present invention proposes a surgical retractor for a single-port laparoscope, comprising a retractor body and a placement assembly, wherein an adjustment assembly is provided below the placement assembly, wherein the placement assembly comprises a fixing plate, wherein the fixing plate is mounted on the adjustment assembly, wherein one side of the fixing plate is fixedly connected to two fixing blocks, wherein the fixing blocks are provided with an arc-shaped recess, wherein both sides of the fixing blocks are rotatably connected to the arc-shaped plate, wherein the inner arc surface of the arc-shaped plate is opposite to the arc-shaped recess, and a torsion spring is provided at the connection between the arc-shaped plate and the fixing block.

[0007] In one example, a toggle rod is fixedly connected between the two arc-shaped plates, and an inner arc surface of the arc-shaped plate and an inner wall of the arc-shaped recess on the fixed block are both fixedly connected to an elastic pad.

[0008] In one example, a mounting part is provided on one side of the adjustment component, and the mounting part includes a mounting frame, the lower surface of the mounting frame is threadedly connected to a threaded rod, the threaded rod passes through the mounting frame, the upper end of the threaded rod is rotatably connected to an extrusion plate, the lower surface of the extrusion plate is fixedly connected to two guide rods, the guide rods pass through the mounting frame and are slidably connected to the mounting frame.

[0009] In one example, the adjustment assembly includes a sliding seat, a square through groove is provided on the upper surface of the mounting frame, the sliding seat is located in the square through groove, the sliding seat is slidably connected to the mounting frame, the upper surface of the sliding seat is rotatably connected to the first lifting rod, one end of the first lifting rod is hinged to the second lifting rod, one end of the second lifting rod is hinged to the connecting column, one end of the connecting column is hinged to the support plate, all hinges are installed with fastening bolts, one side of the support plate is fixedly connected to the fixed column, one side of the fixed column is provided with an adjustment plate, the adjustment plate is provided with a square through groove, the square through groove is slidably connected to the slider, and the slider is fixedly connected to the fixed plate.

[0010] In one example, the first lifting rod and the second lifting rod both include a fixed cylinder and a round rod, the round rod can slide and rotate in the fixed cylinder, the round rod of the first lifting rod is hinged to the fixed cylinder of the second lifting rod, and the round rod in the second lifting rod is hinged to the connecting column.

[0011] In one example, the side walls of the fixing tubes of the first lifting rod and the second lifting rod are both provided with threaded through holes, and the threaded through holes are internally threadedly connected with fastening screws.

[0012] In one example, an arc-shaped through groove is provided on the support plate, a sliding block is slidably connected in the arc-shaped through groove, two support plates are fixedly connected between the sliding block and the adjustment plate, one side of the support plate is fixedly connected to the arc block, an arc-shaped through groove is provided on the arc block, one side of the sliding block is threadedly connected to a fastening screw, one end of the fastening screw is fixedly connected to an extrusion block, and the center of the fixed column and the center of the arc-shaped through groove are on the same axis.

[0013] In one example, a first vertical plate is fixedly connected between the two support plates, one side of the support plate is fixedly connected to the second vertical plate, a threaded control rod is rotatably connected between the first vertical plate and the second vertical plate, one side of the slider is fixedly connected to a fixing seat, the threaded control rod passes through the fixing seat and is threadedly connected to the fixing seat, and one end of the threaded control rod is fixedly connected to a toggle block.

[0014] The surgical retractor for single-port laparoscopy proposed by the present invention can bring the following beneficial effects:

[0015] First, by setting a placement component, the medical staff holds the retractor body, extends it into the patient's body through the laparoscope, manipulates and clamps the patient's organs, and pulls the organs. The retractor body has a maintenance function. After clamping the organ, the clamping of the organ can be maintained by its own mechanical lock. The placement component is moved by the adjustment component to move the placement component to the side of the retractor body that pulls the organ, and the arc plate is moved to move the placement component so that the arc groove of the fixed block contacts the clamp rod on the retractor body. The arc plate is released, and the arc plate reverses under the action of the torsion spring and presses on the clamp rod to fix the retractor body. The state of the retractor body placed on the placement component is the same as the state of clamping and pulling the organ in the hands of the medical staff, which liberates the medical staff, saves more effort, and is more convenient for the medical staff to assist the surgeon. At the same time, it is avoided that the medical staff holds the retractor body, occupies the space around the operating table, and interferes with the surgeon.

[0016] Secondly, by setting a fixed column and a sliding block, the fixed column is located close to the laparoscope on the patient's body and on one side of the laparoscope. When the angle of the retractor body needs to be fine-tuned, the sliding block slides in the arc-shaped through groove. At this time, the retractor body and the adjustment plate rotate around the fixed column as the center of the circle, and the fixed column is located on one side of the laparoscope. When the retractor body rotates to fine-tune the tilt angle, the laparoscope is located near the center of the circle, so that the influence of the retractor body on the laparoscope is reduced, and the laparoscope is prevented from being moved when the retractor body and the adjustment plate are rotated, resulting in large deformation and skew of the laparoscope. At the same time, when the angle of the retractor body is fine-tuned, the retractor body does not need to be removed from the adjustment plate, and the retractor body and the adjustment plate are directly rotated and adjusted together, which is simpler and more convenient to operate.

[0017] Thirdly, by setting a threaded control rod, when it is necessary to adjust the distance that the retractor body pulls the organ, the threaded control rod is rotated, the threaded control rod drives the fixed seat, and the fixed seat drives the fixed plate to slide on the adjustment plate, so that the retractor body maintains the original inclined state to slide, and only the length inserted into the body is adjusted. Similarly, there is no need to remove the retractor body, which does not affect the clamping state of the retractor body on the organ, and the impact on the retractor body is relatively low. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0019] In the attached picture:

[0020] Figure 1 It is a schematic diagram of the structure of the present invention.

[0021] Figure 2 It is a schematic structural diagram of the fixing block and the arc plate of the present invention.

[0022] Figure 3 It is a schematic structural diagram of the mounting member of the present invention.

[0023] Figure 4 It is a schematic diagram of the structure of the regulating component of the present invention.

[0024] Figure 5 It is a structural schematic diagram of the support plate and the adjustment plate of the present invention.

[0025] Figure 6 It is a structural schematic diagram of the threaded control rod of the present invention.

[0026] Figure 7 It is a structural schematic diagram of the sliding block of the present invention.

[0027] In the figure: 1. Placement component; 101. Fixed plate; 102. Fixed block; 103. Arc plate; 2. Adjustment component; 21. Sliding seat; 22. First lifting rod; 23. Second lifting rod; 221. Fixed cylinder; 222. Round rod; 24. Connecting column; 25. Support plate; 26. Fastening bolt; 27. Fixed column; 28. Adjustment plate; 29. ​​Slider; 3. Toggle rod; 4. Mounting piece; 41. Mounting frame; 42. Threaded rod; 43. Extrusion plate; 44. Guide rod; 5. Fastening screw; 6. Sliding block; 7. Support plate; 8. Arc block; 9. Fastening screw; 10. Extrusion block; 11. First vertical plate; 12. Second vertical plate; 13. Threaded control rod; 14. Fixed seat; 15. Toggle block. DETAILED DESCRIPTION

[0028] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in an exemplary manner in conjunction with the accompanying drawings.

[0029] like Figure 1 to Figure 7As shown, an embodiment of the present invention proposes a surgical retractor for a single-port laparoscope, comprising a retractor body and a placement component 1, an adjusting component 2 is arranged below the placement component 1, the placement component 1 comprises a fixing plate 101, the fixing plate 101 is mounted on the adjusting component 2, one side of the fixing plate 101 is fixedly connected to two fixing blocks 102, the fixing blocks 102 are provided with an arc-shaped recess, the two sides of the fixing blocks 102 are rotatably connected to an arc plate 103, the inner arc surface of the arc plate 103 is opposite to the arc-shaped recess, a torsion spring is arranged at the connection between the arc plate 103 and the fixing block 102, when in use, the medical staff holds the retractor body, extends it into the patient's body through the laparoscope, controls and clamps the patient's organs, and pulls the organs, the retractor body has a maintaining function, after clamping the organs, the clamping of the organs can be maintained by its own mechanical lock, when the medical staff pulls into place, at this time, through the adjusting component Part 2 moves the placement component 1, so that the placement component 1 moves to the side of the retractor body that retracts the organ, and the arc plate 103 is moved to move the placement component 1, so that the arc groove of the fixing block 102 contacts the clamp rod on the retractor body, and the arc plate 103 is released. The arc plate 103 reverses under the action of the torsion spring and presses on the clamp rod to fix the retractor body. At this time, the retractor body is located on the placement component 1, and the retractor body is supported by the placement component 1 and the adjustment component 2. The state of the retractor body placed on the placement component 1 is the same as the state of clamping the retractor organ in the hands of the medical staff. The placement component 1 replaces the medical staff to support the retractor body, which liberates the medical staff, saves more effort, and better facilitates the medical staff to assist the surgeon. At the same time, it avoids the medical staff holding the retractor body, occupying the space around the operating table, and interfering with the surgeon.

[0030] like Figure 2 As shown, a toggle rod 3 is fixedly connected between the two arc plates 103, and the inner arc surface of the arc plate 103 and the inner wall of the arc-shaped recess on the fixed block 102 are fixedly connected to the elastic pad. When the retractor body is placed on the fixed block 102, the toggle rod 3 is directly toggled, and the toggle rod 3 drives the two arc plates 103 to rotate, and the torsion spring accumulates force. When the clamp rod of the retractor body is placed on the fixed block 102, the toggle rod 3 is released, and the arc plate 103 and the fixed block 102 squeeze and fix the retractor body through the elastic pad. The elastic pad increases the friction between the clamp rod on the retractor body to prevent the retractor body from sliding between the arc plate 103 and the fixed block 102, so that the pulling force of the retractor body on the organ is reduced, resulting in displacement of the organ and affecting the operation.

[0031] like Figure 3 and Figure 4As shown, a mounting member 4 is provided on one side of the adjustment component 2, and the mounting member 4 includes a mounting frame 41, and the lower surface of the mounting frame 41 is threadedly connected to a threaded rod 42, and the threaded rod 42 penetrates the mounting frame 41, and the upper end of the threaded rod 42 is rotatably connected to an extrusion plate 43, and the lower surface of the extrusion plate 43 is fixedly connected to two guide rods 44, and the guide rods 44 penetrate the mounting frame 41 and are slidably connected to the mounting frame 41. The adjustment component 2 includes a sliding seat 21, and the upper surface of the mounting frame 41 is provided with a square through groove, and the sliding seat 21 is located in the square through groove, and the sliding seat 21 is slidably connected to the mounting frame 41, and the sliding seat 21 The upper surface of the first lifting rod 22 is rotatably connected to the first lifting rod 22, one end of the first lifting rod 22 is hinged to the second lifting rod 23, one end of the second lifting rod 23 is hinged to the connecting column 24, one end of the connecting column 24 is hinged to the support plate 25, all hinges are installed with fastening bolts 26, one side of the support plate 25 is fixedly connected to the fixing column 27, one side of the fixing column 27 is provided with an adjustment plate 28, a square through groove is provided on the adjustment plate 28, a slider 29 is slidably connected in the square through groove, and the slider 29 is fixedly connected to the fixing plate 101. Before use, the adjustment component 2 is installed on one side of the operating bed to make the bed board of the operating bed The pressing plate 43 is stuck between the pressing plate 43 and the sliding seat 21, and the threaded rod 42 is rotated. The threaded rod 42 pushes the pressing plate 43 to rise, and the pressing plate 43 and the sliding seat 21 press the bed board to fix the position of the mounting frame 41. However, at this time, the pressing plate 43 does not completely hold the bed board, so that the bed board does not hold the sliding seat 21, and the sliding seat 21 can still slide on the mounting frame 41. Then, the position of the first lifting rod 22 is moved, and the position of the placement component 1 is moved by the first lifting rod 22 and the second lifting rod 23. When the placement component 1 is close to the retractor body in the hands of the medical staff, Tighten the fastening bolts 26 at the hinges among the first lifting rod 22, the second lifting rod 23, the connecting column 24 and the support plate 25 to fix the loosened first lifting rod 22, the second lifting rod 23, the connecting column 24 and the support plate 25 to support the retractor body. At the same time, rotate the threaded rod 42 to squeeze and fix the bed board through the squeezing plate 43. The bed board squeezes and fixes the sliding seat 21 to prevent the sliding seat 21 from moving, causing the placement component 1 to be displaced, causing the retractor body on the placement component 1 to pull the organ to move, causing deviation in the traction of the organ, affecting the operation.

[0032] like Figure 3As shown, the first lifting rod 22 and the second lifting rod 23 both include a fixed cylinder 221 and a round rod 222, and the round rod 222 can slide and rotate in the fixed cylinder 221, the round rod 222 of the first lifting rod 22 is hinged to the fixed cylinder 221 of the second lifting rod 23, and the round rod 222 in the second lifting rod 23 is hinged to the connecting column 24, and the side walls of the fixed cylinder 221 of the first lifting rod 22 and the second lifting rod 23 are both provided with threaded through holes, and the threaded through holes are connected with fastening screws 5. When adjusting the placement component 1, the round rod 222 on the first lifting rod 22 and the second lifting rod 23 can both slide and extend out in the fixed cylinder 221 to adjust the distance, and can also rotate in the fixed cylinder 221 to adjust the angle. When the placement component 1 is close to the retractor body, the fastening screws 5 on the side wall of the fixed cylinder 221 are rotated to fix the round rod 222, which is more flexible for adjusting the position of the placement component 1.

[0033] like Figure 5 , Figure 6 and Figure 7 As shown, the support plate 25 is provided with an arc-shaped through groove, and the sliding block 6 is slidably connected in the arc-shaped through groove. Two support plates 7 are fixedly connected between the sliding block 6 and the adjusting plate 28. One side of the support plate 25 is fixedly connected to the arc block 8. The arc-shaped through groove is provided on the arc-shaped block 8. One side of the sliding block 6 is threadedly connected to the fastening screw 9, and one end of the fastening screw 9 is fixedly connected to the extrusion block 10. The center of the fixed column 27 and the center of the arc-shaped through groove are on the same axis. When adjusting the position of the placement component 1, the position of the fixed column 27 is close to the laparoscope on the patient's body, located on one side of the laparoscope. When it is necessary to fine-tune the angle of the retractor body, the fastening screw 9 is rotated at this time so that the extrusion block 10 no longer squeezes the arc block 8. At this time, the sliding block 6 can slide in the arc-shaped through groove. When the sliding block 6 When sliding in the arc-shaped through groove, the retractor body and the adjustment plate 28 rotate around the fixed column 27 as the center of the circle, and the fixed column 27 is located on one side of the laparoscope, and the retractor body passes through the laparoscope. Therefore, when the retractor body rotates to fine-tune the tilt angle, the laparoscope is located near the center of the circle, so that the influence of the retractor body on the laparoscope is reduced, and it is avoided that when the retractor body and the adjustment plate 28 are rotated, the laparoscope is not moved, resulting in a large deformation and skewness of the laparoscope. At the same time, when fine-tuning the angle of the retractor body, there is no need to remove the retractor body from the adjustment plate 28. The retractor body and the adjustment plate 28 can be directly rotated and adjusted together. After adjustment, the fastening screw 9 is rotated to squeeze the arc block 8 through the squeezing block 10, which is simpler and more convenient to operate.

[0034] like Figure 5 , Figure 6 and Figure 7As shown, the first vertical plate 11 is fixedly connected between the two support plates 7, one side of the support plate 25 is fixedly connected to the second vertical plate 12, the threaded control rod 13 is rotatably connected between the first vertical plate 11 and the second vertical plate 12, one side of the slider 29 is fixedly connected to the fixing seat 14, the threaded control rod 13 penetrates the fixing seat 14 and is threadedly connected to the fixing seat 14, one end of the threaded control rod 13 is fixedly connected to the toggle block 15, when it is necessary to adjust the distance of the retractor body to pull the organ, that is, the distance of the retractor body extending into the patient's body, the retractor body is installed on the adjustment plate 28 at this time, and the threaded control rod 13 is directly rotated, the threaded control rod 13 drives the fixing seat 14, and the fixing seat 14 drives the fixing plate 101 to slide on the adjustment plate 28, so that the retractor body maintains the original inclined state to slide, and only the length of extending into the body is adjusted. There is also no need to remove the retractor body, and only the threaded control rod 13 needs to be rotated for control, which does not affect the clamping state of the retractor body on the organ, and has a low impact on the retractor body.

[0035] Working principle: the bed board of the operating bed is stuck between the squeezing plate 43 and the sliding seat 21, the threaded rod 42 is rotated, the threaded rod 42 pushes the squeezing plate 43 up, the squeezing plate 43 and the sliding seat 21 squeeze the bed board, and fix the position of the mounting frame 41, but at this time the squeezing plate 43 does not completely hold the bed board, so that the bed board does not hold the sliding seat 21, and the sliding seat 21 can still slide on the mounting frame 41, and then the position of the first lifting rod 22 is moved, and the position of the placement component 1 is moved by the first lifting rod 22 and the second lifting rod 23. When the part 1 is close to the retractor body in the hands of the medical staff, the fastening bolts 26 at the hinges between the first lifting rod 22, the second lifting rod 23, the connecting column 24 and the support plate 25 are tightened to fix the loosened first lifting rod 22, the second lifting rod 23, the connecting column 24 and the support plate 25. The medical staff holds the retractor body and extends it into the patient's body through the laparoscope to control the clamping of the patient's organs and pull the organs. The retractor body has a maintaining function. After clamping the organs, it can maintain the clamping of the organs through its own mechanical lock. When the medical staff After the staff has pulled the retractor into place, they push the toggle lever 3, which drives the two arc plates 103 to rotate, and the torsion spring stores force. When the clamp rod of the retractor body is placed on the fixed block 102, the toggle lever 3 is released, and the arc plate 103 and the fixed block 102 squeeze and fix the retractor body through the elastic pad. The state of the retractor body placed on the placement component 1 is the same as the state of clamping the retracted organ in the hands of the medical staff. When it is necessary to fine-tune the angle of the retractor body, the tightening screw 9 is turned at this time so that the squeezing block 10 no longer squeezes the arc block 8. The sliding block 6 can slide in the arc-shaped groove. When the sliding block 6 slides in the arc-shaped groove, the retractor body and the adjustment plate 28 rotate around the fixed column 27 as the center of the circle. After adjustment, the fastening screw 9 is rotated to squeeze the arc block 8 through the squeezing block 10. When it is necessary to adjust the distance of the retractor body to pull the organ, the threaded control rod 13 is rotated, and the threaded control rod 13 drives the fixed seat 14. The fixed seat 14 drives the fixed plate 101 to slide on the adjustment plate 28, so that the retractor body maintains the original inclined state to slide, and only the length inserted into the body is adjusted.

[0036] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0037] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A retractor for single-port laparoscope surgery, characterized in that: The invention comprises a retractor body and a placement component (1), wherein an adjustment component (2) is arranged below the placement component (1), wherein the placement component (1) comprises a fixing plate (101), wherein the fixing plate (101) is mounted on the adjustment component (2), wherein one side of the fixing plate (101) is fixedly connected to two fixing blocks (102), wherein the fixing blocks (102) are provided with arc-shaped recesses, wherein both sides of the fixing blocks (102) are rotatably connected to an arc-shaped plate (103), wherein an inner arc surface of the arc-shaped plate (103) is opposite to the arc-shaped recesses, and a torsion spring is arranged at the connection between the arc-shaped plate (103) and the fixing blocks (102).

2. A retractor for single-port laparoscope surgery according to claim 1, characterized in that: The toggle rod (3) is fixedly connected between the two arc-shaped plates (103), and the inner arc surface of the arc-shaped plate (103) and the inner wall of the arc-shaped recess on the fixed block (102) are both fixedly connected to the elastic pad.

3. The surgical retractor for single-port laparoscope according to claim 1, characterized in that: A mounting member (4) is provided on one side of the adjustment component (2), and the mounting member (4) comprises a mounting frame (41), the lower surface of the mounting frame (41) is threadedly connected to a threaded rod (42), the threaded rod (42) passes through the mounting frame (41), the upper end of the threaded rod (42) is rotatably connected to an extrusion plate (43), the lower surface of the extrusion plate (43) is fixedly connected to two guide rods (44), the guide rods (44) pass through the mounting frame (41) and are slidably connected to the mounting frame (41).

4. The surgical retractor for single-port laparoscope according to claim 3, characterized in that: The adjustment assembly (2) comprises a sliding seat (21), the upper surface of the mounting frame (41) is provided with a square through groove, the sliding seat (21) is located in the square through groove, the sliding seat (21) is slidably connected to the mounting frame (41), the upper surface of the sliding seat (21) is rotatably connected to the first lifting rod (22), one end of the first lifting rod (22) is hinged to the second lifting rod (23), one end of the second lifting rod (23) is hinged to the connecting column (24), one end of the connecting column (24) is hinged to the support plate (25), all hinged locations are installed with fastening bolts (26), one side of the support plate (25) is fixedly connected to the fixing column (27), one side of the fixing column (27) is provided with an adjustment plate (28), a square through groove is provided on the adjustment plate (28), a sliding block (29) is slidably connected in the square through groove, and the sliding block (29) is fixedly connected to the fixing plate (101).

5. The surgical retractor for single-port laparoscope according to claim 4, characterized in that: The first lifting rod (22) and the second lifting rod (23) both comprise a fixed cylinder (221) and a round rod (222); the round rod (222) can slide and rotate in the fixed cylinder (221); the round rod (222) of the first lifting rod (22) is hinged to the fixed cylinder (221) of the second lifting rod (23); and the round rod (222) in the second lifting rod (23) is hinged to the connecting column (24).

6. The surgical retractor for single-port laparoscope according to claim 5, characterized in that: The side walls of the fixing tubes (221) of the first lifting rod (22) and the second lifting rod (23) are both provided with threaded through holes, and the threaded through holes are internally threadedly connected with fastening screws (5).

7. The surgical retractor for single-port laparoscope according to claim 4, characterized in that: The support plate (25) is provided with an arc-shaped through groove, a sliding block (6) is slidably connected in the arc-shaped through groove, two support plates (7) are fixedly connected between the sliding block (6) and the adjustment plate (28), one side of the support plate (25) is fixedly connected to the arc-shaped block (8), the arc-shaped through groove is provided on the arc-shaped block (8), one side of the sliding block (6) is threadedly connected to a fastening screw (9), one end of the fastening screw (9) is fixedly connected to an extrusion block (10), and the center of the fixed column (27) and the center of the arc-shaped through groove are on the same axis.

8. The retractor for single-port laparoscope surgery according to claim 7, characterized in that: A first vertical plate (11) is fixedly connected between the two support plates (7), one side of the support plate (25) is fixedly connected to the second vertical plate (12), a threaded control rod (13) is rotatably connected between the first vertical plate (11) and the second vertical plate (12), one side of the slider (29) is fixedly connected to the fixing seat (14), the threaded control rod (13) penetrates the fixing seat (14) and is threadedly connected to the fixing seat (14), and one end of the threaded control rod (13) is fixedly connected to the toggle block (15).

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