Multi-dimensionally adjustable endoscope thyroid surgery drag hook

Abstract

This invention discloses a multi-dimensional adjustable endoscopic thyroid surgery retractor, comprising a column, a crossbar, and a retractor. The retractor includes a rotatably connected connecting piece and a hook body. An angle adjustment mechanism is provided between the connecting piece and the hook body. The angle adjustment mechanism adjusts the angle at which the retractor pulls the patient's skin tissue by adjusting the relative angle between the hook body and the connecting piece. The crossbar includes a connecting rod body, a turntable, and a supporting rod body. The turntable is located between the connecting rod body and the supporting rod body, and a deflection adjustment mechanism is provided inside the turntable. This invention allows for adjustment of the deflection state, height, and angle of the thyroid retractor through the deflection adjustment mechanism, height adjustment mechanism, and angle adjustment mechanism. By adjusting these three parameters of the thyroid retractor separately, its state can be adjusted to a greater extent, allowing it to pull the patient's skin tissue in different ways, thereby facilitating a more complete exposure of the surgical field and ensuring a smooth surgical procedure.

Description

Technical Field

[0001] This utility model relates to the field of thyroid retractor technology, and in particular to a retractor for endoscopic thyroid surgery that can be adjusted in multiple dimensions. Background Technology

[0002] A thyroid retractor is a surgical instrument used in thyroid surgery to retract and fix thyroid tissue to expose the surgical field, allowing the surgeon to observe the surgical site with the aid of an endoscope, thus facilitating the successful completion of the thyroid surgery.

[0003] Thyroid retractors play a crucial role in thyroid surgery, helping surgeons obtain a clear surgical field, improving the accuracy and safety of the procedure, and reducing surgical complications. However, existing thyroid retractors are simple in design and have a limited range of adjustment methods, making it difficult to adapt to the different degrees and methods of traction in different patients, thus failing to guarantee sufficient exposure. Furthermore, the traction strength that different patients' skin tissues can withstand varies, and the existing adjustment methods of thyroid retractors cannot meet this need. Therefore, the use of thyroid retractors still presents some inconveniences.

[0004] A search revealed that Chinese utility model patent CN217592939U discloses a multifunctional thyroid retractor, including a fixing mechanism comprising a clamping plate, an adjusting mechanism comprising an adjusting plate disposed above the clamping plate and a rotating mechanism disposed on one side of the adjusting plate, the rotating mechanism being used to adjust the angle of the device, and a retractor mechanism comprising a support rod disposed inside the rotating mechanism, a movable block disposed on one side of the clamping plate, a threaded ring disposed inside the movable block, a through hole disposed on the upper surface of the movable block, the threaded ring being connected to the through hole, a threaded rod disposed inside the threaded ring, the threaded rod being movably connected to the threaded ring, and an assist ring disposed at one end of the threaded rod. While this application allows for adjustment of the height and position of the thyroid retractor through the adjusting mechanism and the retractor mechanism respectively, it is difficult to achieve changes in its angle and deflection state. Therefore, the adjustment method of this device remains relatively simple and cannot provide different traction methods to fully expose the surgical field. Utility Model Content

[0005] In view of the above-mentioned prior art, the present invention provides a retractor for endoscopic thyroid surgery that can be adjusted in multiple dimensions. The main technical problem to be solved is how to provide different traction methods for the thyroid retractor to fully expose the surgical field.

[0006] To achieve the above objectives, the technical solution of this utility model embodiment is implemented as follows: A multi-dimensional adjustable retractor for endoscopic thyroid surgery includes a column, a crossbar, and a retractor. The retractor includes a rotatably connected connecting piece and a hook body. An angle adjustment mechanism is provided between the connecting piece and the hook body. The angle adjustment mechanism adjusts the angle at which the retractor pulls the patient's skin tissue by adjusting the relative angle between the hook body and the connecting piece. The crossbar includes a connecting rod body, a turntable, and a support rod body. The turntable is located between the connecting rod body and the support rod body. A deflection adjustment mechanism is provided inside the turntable. A movable block is sleeved on the outside of the support rod body. A height adjustment mechanism is provided inside the movable block. The retractor is located at the bottom of the movable block. The height adjustment mechanism is used to adjust the height of the retractor. The deflection adjustment mechanism adjusts the deflection of the retractor by driving the support rod body to rotate.

[0007] Furthermore, the connecting rod is rotatably connected to the top of the column. The turntable includes a cylinder and a disc. The cylinder is fixedly connected to one end of the connecting rod. A connecting shaft is rotatably connected to one side of the inner wall of the cylinder. The disc is fixedly connected to one end of the connecting shaft. An angle ruler is fixedly connected to the top of the cylinder near the disc. An arrow is fixedly connected to the top of the disc, and the arrow is compatible with the angle ruler.

[0008] Furthermore, the support rod is fixedly connected to the other side of the disc body. The deflection adjustment mechanism includes a worm gear and a worm. The worm gear meshes with the worm. The worm gear is connected to the outside of the connecting shaft by a key. The worm is rotatably connected to the bottom end of one side of the cylinder. A first through hole is opened at the bottom end of the other side of the cylinder. One end of the worm extends to the outside of the cylinder at the first through hole. A first knob is fixedly connected to the end of the worm outside the cylinder.

[0009] Furthermore, the movable block has a regular hexagonal prism-shaped cavity inside, and a second through hole is opened at the top of the movable block at the axis of the cavity. The height adjustment mechanism includes a stud, which is rotatably connected to the movable block at the second through hole. A second knob is fixedly connected to the top of the stud, and a first threaded sleeve is threadedly connected to the outside of the rod body in the cavity. The first threaded sleeve is a regular hexagonal prism shape that matches the cavity.

[0010] Furthermore, a through groove is provided on the side of the movable block away from the crossbar, and a scale is fixedly connected to the movable block at the through groove. The scale is transparent in color. A protrusion is fixedly connected to one side of the first threaded sleeve. The protrusion is conical and its tip extends into the through groove. Several guide rods are fixedly connected at equal intervals to the outer side of the bottom end of the first threaded sleeve.

[0011] Furthermore, the bottom end of the movable block has several guide holes on the outside of the stud, the bottom end of the guide rod extends to the outside of the movable block at the guide holes, the bottom ends of several guide rods are fixedly connected to the same nut, the top end of the connecting piece has a third through hole on one side, the hook is fixedly connected to the bearing at the third through hole, the bearing has a bolt on the inside, and the nut is threadedly connected to the outside of the bolt.

[0012] Furthermore, the connecting plate is flat, the hook body is L-shaped, and the hook body is rotatably connected to the bottom end of the connecting plate. The angle adjustment mechanism includes a threaded rod, which is rotatably connected to one side of the bottom end of the connecting plate. A second threaded sleeve is threadedly connected to the bottom end of the threaded rod. The second threaded sleeve is rotatably connected to the inner wall of one side of the hook body via a universal joint. A pointer is fixedly connected to the top of one side of the hook body, and an angle disc is fixedly connected to the bottom end of the connecting plate near the pointer.

[0013] Furthermore, the hook is externally fixed with an air extraction pipe, which is Y-shaped and has several air extraction holes at its bottom end.

[0014] The beneficial effects of this utility model are as follows: 1. This application can adjust the deflection state, height and angle of the thyroid retractor through the deflection adjustment mechanism, height adjustment mechanism and angle adjustment mechanism respectively. By adjusting the above three parameters of the thyroid retractor respectively, its state can be adjusted to a greater extent, so that it has different traction methods on the patient's skin tissue, so as to expose the surgical field more fully and facilitate the smooth operation of the surgery. 2. By setting an angle ruler, a scale ruler, and an angle dial, the scales on these three can be used as a reference for adjusting the deflection state, height, and angle of the thyroid retractor, respectively. This not only facilitates precise control during surgical operations, but also allows for the recording of the three adjustment data to guide the retractor adjustment in other similar endoscopic thyroid surgeries. 3. Recording the degree of adjustment of the thyroid retractor in the form of data can intuitively reflect its status and make it easy to control the force with which it pulls on the patient's skin tissue. Therefore, based on the recorded data, the device can be used to quickly adjust the thyroid retractor so that it pulls on the patient's skin tissue in the best state of exposure, which is more patient-friendly. Attached Figure Description

[0015] Figure 1 This is a three-dimensional view of a retractor for laparoscopic thyroid surgery that can be adjusted in multiple dimensions, as described in Embodiment 1 of this application. Figure 2 This is a perspective view of a deflection adjustment mechanism for a retractor in laparoscopic thyroid surgery that is adjustable in multiple dimensions, as described in Embodiment 1 of this application. Figure 3 This is a perspective view of a height adjustment mechanism for a multi-dimensional adjustable retractor in endoscopic thyroid surgery according to Embodiment 1 of this application; Figure 4 This is a perspective view of an angle adjustment mechanism for a retractor in laparoscopic thyroid surgery that can be adjusted in multiple dimensions, as described in Embodiment 1 of this application. Figure 5This is a side view of an angle adjustment mechanism for a retractor in laparoscopic thyroid surgery that can be adjusted in multiple dimensions, according to Embodiment 1 of this application. Figure 6 This is a three-dimensional view of the retractor of a multi-dimensional adjustable endoscopic thyroid surgery retractor according to Embodiment 2 of this application.

[0016] Explanation of icon numbers: Column 1, Horizontal bar 2, Connecting rod 201, Turntable 202, Cylinder 2021, Disc 2022, Support rod 203, Movable block 3, Hook 4, Connecting piece 401, Hook 402, Air extraction pipe 403, Air extraction hole 404, Worm gear 5, Angle ruler 6, Arrow 7, Connecting shaft 8, Worm 9, First knob 10, Second knob 11, Protrusion 12, First threaded sleeve 13, Scale 14, Stud 15, Guide rod 16, Bearing 17, Nut 18, Bolt 19, Pointer 20, Angle disc 21, Threaded rod 22, Second threaded sleeve 23. Detailed Implementation

[0017] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the utility model.

[0018] Example 1 See attached document Figure 1-4 This application provides a multi-dimensional adjustable retractor for endoscopic thyroid surgery, including a column 1, a crossbar 2, and a retractor 4. The retractor 4 includes a connecting piece 401 and a hook body 402 that are rotatably connected. An angle adjustment mechanism is provided between the connecting piece 401 and the hook body 402. The angle adjustment mechanism adjusts the angle at which the retractor 4 pulls the patient's skin tissue by adjusting the relative angle between the hook body 402 and the connecting piece 401. The crossbar 2 includes a connecting rod body 201, a turntable 202, and a support rod body 203. The turntable 202 is disposed between the connecting rod body 201 and the support rod body 203. Between the bodies 203, the turntable 202 is equipped with a deflection adjustment mechanism inside. The support rod body 203 is fitted with a movable block 3. A threaded through hole is opened on one side of the movable block 3. A fixing bolt is threadedly connected to the movable block 3 at the threaded through hole. The fixing bolt is used to fix the movable block 3 and the support rod body 203. The movable block 3 is equipped with a height adjustment mechanism inside. A hook 4 is set at the bottom of the movable block 3. The height adjustment mechanism is used to adjust the height of the hook 4. The deflection adjustment mechanism adjusts the deflection of the hook 4 by driving the support rod body 203 to rotate.

[0019] When using this device, the column 1 can be installed on the operating table, and then the crossbar 2 can be moved to a position perpendicular to the column 1. Then, the bolt 19 is threaded through the bearing 17 and connected to the nut 18 to complete the installation of the hook 4. After that, the position of the hook 4 can be adjusted by moving the movable block 3 on the crossbar 2. In addition, the relative angle between the hook 4 and the crossbar 2 can be adjusted by rotating the hook 4. By adjusting the deflection, height, and angle of the retractor 4, the degree to which the retractor 4 pulls on the patient's skin can be adjusted, so as to more fully expose the field of vision of the patient's surgical site.

[0020] Preferably, the connecting rod 201 is rotatably connected to the top of the column 1. The turntable 202 includes a cylindrical body 2021 and a disc body 2022. The cylindrical body 2021 is fixedly connected to one end of the connecting rod 201. A connecting shaft 8 is rotatably connected to one side of the inner wall of the cylindrical body 2021. The disc body 2022 is fixedly connected to one end of the connecting shaft 8. An angle ruler 6 is fixedly connected to the top of the outer side of the cylindrical body 2021 near the disc body 2022. An arrow 7 is fixedly connected to the top of the disc body 2022. The arrow 7 is adapted to the angle ruler 6. A rubber sealing ring is provided on the outer side of the disc body 2022 to ensure the sealing degree between it and the cylindrical body 2021 and to prevent dirt and grime from accumulating on the turntable 202, which could lead to hygiene problems with this medical device.

[0021] Preferably, the support rod 203 is fixedly connected to the other side of the disc 2022. The deflection adjustment mechanism includes a worm gear 5 and a worm 9. The worm gear 5 meshes with the worm 9. The worm gear 5 is connected to the outside of the connecting shaft 8 by a key. The worm 9 is rotatably connected to the bottom end of one side of the cylinder 2021. A first through hole is opened at the bottom end of the other side of the cylinder 2021. One end of the worm 9 extends to the outside of the cylinder 2021 through the first through hole. A first knob 10 is fixedly connected to the end of the worm 9 outside the cylinder 2021. The transmission between the worm gear 5 and the worm 9 has a reverse self-locking effect. Therefore, after adjusting the deflection of the hook 4, the hook 4 can be kept in a stable state, thereby ensuring the stable traction effect it provides to the patient's skin tissue.

[0022] If it is necessary to adjust the deflection of hook 4, the first knob 10 can be turned. The first knob 10 drives the worm wheel 5 to rotate through the worm 9. The worm wheel 5 drives the disc 2022 to rotate through the connecting shaft 8. The disc 2022 drives the movable block 3 to deflect through the support rod 203, thus adjusting the deflection of hook 4. During this process, the rotation of the disc 2022 can also drive the arrow 7 to deflect. By observing the value indicated by the arrow 7 on the angle ruler 6, the parameter data for adjusting the deflection of hook 4 can be obtained.

[0023] Preferably, the movable block 3 has a regular hexagonal prism-shaped cavity inside. The top of the movable block 3 has a second through hole at the axis of the cavity. The height adjustment mechanism includes a stud 15, which is rotatably connected to the movable block 3 at the second through hole. A second knob 11 is fixedly connected to the top of the stud 15. A first threaded sleeve 13 is threadedly connected to the outside of the rod in the cavity of the stud 15. The first threaded sleeve 13 is a regular hexagonal prism shape that fits the cavity. When the first threaded sleeve 13 moves in the cavity of the regular hexagonal prism, the first threaded sleeve 13 cannot rotate. Instead, it can only move vertically under the rotation drive of the stud 15. Since the transmission between the stud 15 and the first threaded sleeve 13 has a directional self-locking effect, it can maintain the stability of the hook 4 after height adjustment, thereby further ensuring the stable traction effect it provides to the patient's skin tissue.

[0024] Preferably, a through groove is provided on the side of the movable block 3 away from the crossbar 2. A scale 14 is fixedly connected to the movable block 3 at the through groove. The scale 14 is transparent. A protrusion 12 is fixedly connected to one side of the first threaded sleeve 13. The protrusion 12 is conical and its tip extends into the through groove. Several guide rods 16 are fixedly connected at equal intervals on the outer side of the bottom end of the first threaded sleeve 13. In addition to providing scale values, the scale 14 can also close the through groove. The stud 15 is rotated and sealed with the movable block 3 at the third through hole. A sealing gasket can also be set at the guide hole. This can ensure that the cavity is isolated from the outside world, thus preventing dirt from accumulating in the cavity. Since the first threaded sleeve 13 can be made into a regular hexagonal prism with a cross-sectional area slightly smaller than that of the cavity, it can move smoothly in the cavity without being obstructed by air pressure.

[0025] Preferably, the bottom end of the movable block 3 has several guide holes on the outside of the stud 15, and the bottom end of the guide rod 16 extends to the outside of the movable block 3 through the guide holes. The bottom ends of several guide rods 16 are fixedly connected to the same nut 18. A third through hole is opened on one side of the top of the connecting piece 401. A bearing 17 is fixedly connected to the hook 4 through the third through hole. A bolt 19 is provided on the inner side of the bearing 17, and the nut 18 is threadedly connected to the outside of the bolt 19. Through the threaded connection between the bolt 19 and the nut 18, the hook 4 can be installed on the movable block 3. However, the presence of the bearing 17 allows the hook 4 to rotate relative to the movable block 3, thus facilitating the adjustment of the rotation of the movable block 3 itself. A tension sensor is provided in the guide rod 16, specifically a MEAS tension sensor (ELFF series). An LED display screen is provided on the movable block 3. The LED display screen is electrically connected to the pressure sensor and can display the tension on the guide rod 16, so as to intuitively display the tension generated by the hook 4 on the patient's skin in the form of data.

[0026] If the height of the hook 4 needs to be adjusted, the second knob 11 can be turned. The second knob 11 drives the stud 15 to rotate, which allows the first threaded sleeve 13 to move in the vertical direction. The first threaded sleeve 13 drives the nut 18 to move through the guide rod 16, thereby causing the hook 4 to rise and fall to achieve its height adjustment. In this process, the first threaded sleeve 13 can also drive the protrusion 12 to move. By observing the value indicated by the protrusion 12 on the scale 14, the parameter data for adjusting the height of the hook 4 can be obtained.

[0027] Preferably, the connecting piece 401 is flat, and the hook body 402 is L-shaped. The hook body 402 is rotatably connected to the bottom end of the connecting piece 401. The angle adjustment mechanism includes a threaded rod 22, which is rotatably connected to one side of the bottom end of the connecting piece 401. A second threaded sleeve 23 is threadedly connected to the outer side of the bottom end of the threaded rod 22. The second threaded sleeve 23 is rotatably connected to the inner wall of one side of the hook body 402 via a universal joint. A pointer 20 is fixedly connected to the top end of one side of the hook body 402, and a [missing information - likely a component or part] is fixedly connected to the bottom end of the connecting piece 401 near the pointer 20. Angle disc 21 and threaded rod 22 are rotatably connected to angle disc 21 via a rotating shaft, so they can only rotate clockwise or counterclockwise. The second threaded sleeve 23 is rotatably connected to hook body 402 via a universal joint, so the second threaded sleeve 23 can not only rotate clockwise or counterclockwise, but also rotate around its axis, thereby adjusting the total length of threaded rod 22 and second threaded sleeve 23. Furthermore, since the transmission between the two has a reverse self-locking effect, the stability of the relative angle between connecting piece 401 and hook body 402 can be guaranteed.

[0028] If it is necessary to adjust the angle of the hook 4, the second threaded sleeve 23 can be rotated to adjust the total length of the second threaded sleeve 23 and the threaded rod 22, thereby adjusting the relative angle between the hook body 402 and the connecting piece 401 to achieve the angle adjustment of the hook 4. During this process, the deflection of the hook body 402 can drive the pointer 20 to deflect. By observing the value indicated by the pointer 20 on the angle dial 21, the parameter data for adjusting the angle of the hook 4 can be obtained.

[0029] The existence of the above-mentioned adjustment parameters not only allows for more precise adjustment of the deflection state, height, and angle of the retractor 4, but also makes it easier to refer to data to control the force applied to the patient's skin. Furthermore, it helps to find the optimal position for the retractor 4 to pull the patient's skin more quickly during the next surgery on the same patient, thus facilitating the smooth progress of the surgery.

[0030] Example 2 See attached document Figure 5This application provides a retractor for laparoscopic thyroid surgery that can be adjusted in multiple dimensions. In order to enhance the suction effect, the retractor 4 is externally fixedly connected to a suction tube 403. The suction tube 403 is Y-shaped and has several suction holes 404 at the bottom end. The short bottom end of the retractor 4 is curved and is thin and wide plate-shaped, which facilitates the lifting of tissue over a larger area. The retractor 4 has three hollows at the curved head.

[0031] Preferably, the number of air extraction holes 404 is several.

[0032] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. The protection scope of this utility model should be determined by the protection scope of the stated claims.

Claims

1. A retractor for laparoscopic thyroid surgery that is adjustable in multiple dimensions, comprising a column (1), a crossbar (2), and a retractor (4), characterized in that, The hook (4) includes a rotatably connected connecting piece (401) and a hook body (402). An angle adjustment mechanism is provided between the connecting piece (401) and the hook body (402). The angle adjustment mechanism adjusts the angle of the hook (4) when it pulls the patient's skin tissue by adjusting the relative angle between the hook body (402) and the connecting piece (401). The crossbar (2) includes a connecting rod body (201), a turntable (202), and a support rod body (203). The turntable (202) is located between the connecting rod body (201) and the support rod body (203). The turntable (202) is provided with a deflection adjustment mechanism inside. The support rod body (203) is fitted with a movable block (3). The movable block (3) is provided with a height adjustment mechanism inside. The hook (4) is located at the bottom of the movable block (3). The height adjustment mechanism is used to adjust the height of the hook (4). The deflection adjustment mechanism adjusts the deflection of the hook (4) by driving the support rod body (203) to rotate.

2. The retractor for endoscopic thyroid surgery that is adjustable in multiple dimensions according to claim 1, characterized in that, The connecting rod (201) is rotatably connected to the top of the column (1). The turntable (202) includes a cylindrical body (2021) and a disc (2022). The cylindrical body (2021) is fixedly connected to one end of the connecting rod (201). A connecting shaft (8) is rotatably connected to one side of the inner wall of the cylindrical body (2021). The disc (2022) is fixedly connected to one end of the connecting shaft (8). An angle ruler (6) is fixedly connected to the top of the cylindrical body (2021) near the disc (2022). An arrow (7) is fixedly connected to the top of the disc (2022). The arrow (7) is compatible with the angle ruler (6).

3. The retractor for endoscopic thyroid surgery that is adjustable in multiple dimensions according to claim 2, characterized in that, The support rod (203) is fixedly connected to the other side of the disc (2022). The deflection adjustment mechanism includes a worm wheel (5) and a worm (9). The worm wheel (5) meshes with the worm (9). The worm wheel (5) is connected to the outside of the connecting shaft (8) by a key. The worm (9) is rotatably connected to the bottom of one side of the cylinder (2021). The bottom of the other side of the cylinder (2021) is provided with a first through hole. One end of the worm (9) extends to the outside of the cylinder (2021) at the first through hole. The end of the worm (9) outside the cylinder (2021) is fixedly connected with a first knob (10).

4. The retractor for endoscopic thyroid surgery that is adjustable in multiple dimensions according to claim 1, characterized in that, The movable block (3) has a regular hexagonal prism-shaped cavity inside. The top of the movable block (3) has a second through hole at the axis of the cavity. The height adjustment mechanism includes a stud (15). The stud (15) is rotatably connected to the movable block (3) at the second through hole. The top of the stud (15) is fixedly connected to a second knob (11). The stud (15) is threaded to the outside of the rod in the cavity and has a first threaded sleeve (13). The first threaded sleeve (13) is a regular hexagonal prism shape that matches the cavity.

5. The retractor for endoscopic thyroid surgery that is adjustable in multiple dimensions according to claim 4, characterized in that, The movable block (3) has a through groove on the side away from the crossbar (2). A scale (14) is fixedly connected to the movable block (3) at the through groove. The scale (14) is transparent. A protrusion (12) is fixedly connected to one side of the first threaded sleeve (13). The protrusion (12) is conical and its tip extends into the through groove. Several guide rods (16) are fixedly connected at equal intervals on the outer side of the bottom end of the first threaded sleeve (13).

6. The retractor for endoscopic thyroid surgery that is adjustable in multiple dimensions according to claim 5, characterized in that, The bottom end of the movable block (3) has several guide holes on the outside of the stud (15). The bottom end of the guide rod (16) extends to the outside of the movable block (3) at the guide holes. The bottom ends of several guide rods (16) are fixedly connected to the same nut (18). The top end of the connecting piece (401) has a third through hole on one side. The hook (4) is fixedly connected to a bearing (17) at the third through hole. The bearing (17) has a bolt (19) on its inner side. The nut (18) is threaded to the outside of the bolt (19).

7. The retractor for endoscopic thyroid surgery that is adjustable in multiple dimensions according to claim 1, characterized in that, The connecting piece (401) is flat, the hook body (402) is L-shaped, the hook body (402) is rotatably connected to the bottom end of the connecting piece (401), the angle adjustment mechanism includes a threaded rod (22), the threaded rod (22) is rotatably connected to one side of the bottom end of the connecting piece (401), the bottom end of the threaded rod (22) is externally threaded with a second threaded sleeve (23), the second threaded sleeve (23) is rotatably connected to the inner wall of one side of the hook body (402) through a universal joint, a pointer (20) is fixedly connected to the top of one side of the hook body (402), and an angle plate (21) is fixedly connected to the bottom end of the connecting piece (401) near the pointer (20).

8. The retractor for endoscopic thyroid surgery that is adjustable in multiple dimensions according to claim 1, characterized in that, The hook (4) is fixedly connected to an air extraction pipe (403). The air extraction pipe (403) is Y-shaped and has several air extraction holes (404) at its bottom end.

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