Muscle traction device for thyroid surgery

Abstract

The invention relates to the technical field of medical equipment, in particular to a muscle traction device for thyroid surgery, which comprises a mounting plate placed on a bed body, a pillow, a plurality of head supports and a plurality of shoulder brackets are arranged on the mounting plate, the head supports are positioned above the pillow, and the shoulder brackets are hinged to the head supports. A plurality of clamping mechanisms for mounting the drag hook body are arranged on the mounting plate; the bottom of the head support is fixedly connected with a first telescopic rod fixedly connected with the mounting plate, and the bottom of the shoulder bracket is fixedly connected with a second telescopic rod and a third telescopic rod which are fixedly connected with the mounting plate. An arc-shaped frame for adjusting the backward leaning degree of the head is arranged between the head support and the shoulder bracket, the two ends of the arc-shaped frame are hinged to the second telescopic rod and the third telescopic rod respectively, and the clamping mechanisms are located on the two sides of the arc-shaped frame. The thyroid traction device is used for guaranteeing the stability in muscle traction, the thyroid superior region can be conveniently exposed, and the operation difficulty in an operation is reduced.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically to a muscle traction device for thyroid surgery. Background Technology

[0002] For thyroid diseases such as benign thyroid nodules, thyroid adenomas, and thyroid cancer, surgical removal of the diseased thyroid tissue is an important means of preventing the condition from worsening or becoming cancerous. Adequate exposure of the surgical field and clear visualization of the operating area are key factors in ensuring the success of thyroid surgery.

[0003] In traditional open thyroid surgery, muscle traction is crucial for expanding the surgical field and exposing the operative area. Traditional muscle traction relies on manual retractors to maintain the surgical field. Because the thyroid gland is located deep in the neck, significant traction force is required. However, it is difficult for surgeons to precisely control the traction force, increasing the risk of tissue damage. Furthermore, prolonged manual traction can lead to staff fatigue, thus affecting surgical outcomes. While some automatic retractors can replace manual traction, the surgical location is close to the head, resulting in a limited operative area, which restricts the device's installation and use, affects its stability, and increases the difficulty of the procedure. Therefore, this invention provides a muscle traction device for thyroid surgery that ensures stability during muscle traction, facilitates exposure of the upper pole of the thyroid gland, and reduces the difficulty of intraoperative procedures. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a muscle traction device for thyroid surgery, which ensures stability during muscle traction, facilitates exposure of the upper pole region of the thyroid gland, and reduces the difficulty of intraoperative procedures.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows: A muscle traction device for thyroid surgery includes a mounting plate placed on a bed. The mounting plate is provided with a pillow, several head supports, and several shoulder supports. The head supports are located above the pillow, and the shoulder supports are hinged to the head supports. The mounting plate is provided with several clamping mechanisms for mounting the hook body. A first telescopic rod is fixedly connected to the bottom of the head support and fixedly connected to the mounting plate. A second telescopic rod and a third telescopic rod are fixedly connected to the bottom of the shoulder supports and fixedly connected to the mounting plate.

[0006] An arc-shaped frame is provided between the head support and the shoulder support to adjust the degree of head tilt. The two ends of the arc-shaped frame are hinged to the second telescopic rod and the third telescopic rod, respectively, and the clamping mechanism is located on both sides of the arc-shaped frame.

[0007] Furthermore, the hook body is an arc-shaped hook.

[0008] Furthermore, the head support is symmetrically arranged with the pillow as the center. The end of the head support near the second telescopic rod is rotatably fitted with a first shaft. A first collar is provided between the first shaft and the first telescopic rod. The first collar is rotatably fitted with the first shaft. The second telescopic rod is hinged to the first collar. The first collar is fixedly connected to one end of the arc-shaped frame.

[0009] A restraint strap is provided at one end of the head support near the first telescopic rod. The restraint strap is located between adjacent head supports. Both ends of the restraint strap are fixedly connected to collars, which slide in conjunction with the head supports.

[0010] The mounting plate has a first groove, and a first slider slides within the first groove. The first slider is fixedly connected to the end of the first telescopic rod furthest from the head bracket.

[0011] Furthermore, the arc-shaped frame includes a first piece and a second piece, with a central shaft rotatably fitted at the center of the first piece and the center of the second piece, and a support telescopic rod fixedly connected at the center of the central shaft, with the end of the support telescopic rod away from the central shaft fixedly connected to the mounting plate;

[0012] The first piece is fixedly connected to the first collar at the end furthest from the central axis. The top of the third telescopic rod is rotatably fitted with the second collar. The second collar is rotatably fitted with the second shaft. The second shaft is rotatably fitted with the end of the shoulder bracket near the third telescopic rod. The second collar is fixedly connected to the end of the second piece furthest from the central axis.

[0013] The mounting plate has a second slide groove and a third slide groove. The second slide groove is located between the first slide groove and the third slide groove. A second slider is slidably fitted in the second slide groove. The second slider is fixedly connected to the end of the second telescopic rod away from the first axis. The third slider is fixedly connected to the end of the third telescopic rod away from the second axis.

[0014] Furthermore, the clamping mechanism includes an arc-shaped reference plate, with an electric push rod hinged to the bottom of the reference plate. A locking block is fixedly connected to the end of the electric push rod away from the reference plate. Several mounting holes are opened on the mounting plate, and the mounting holes are symmetrically arranged around the arc-shaped frame. The locking block is interference-fitted with the mounting holes.

[0015] An angle adjustment groove is provided on the reference plate. A sleeve is slidably fitted inside the angle adjustment groove. A pulling block is slidably fitted inside the sleeve. Several grippers are hinged to one end of the pulling block near the arc frame. A rotating shaft is slidably fitted between the grippers and the rotating part of the pulling block. A spring is connected between adjacent grippers. Positioning holes are provided on both the pulling block and the sleeve. The positioning holes on the sleeve are evenly arranged along the straight direction of the sleeve. A pin is slidably fitted inside the positioning holes.

[0016] When adjacent grippers are in a parallel and engaged state, both ends of the grippers abut against the sleeve, the spring is in a compressed state, and the ends of the adjacent grippers away from the rotating shaft abut against each other; when adjacent grippers are at their maximum opening angle, both ends of the grippers separate from the sleeve, the spring is in a naturally extended state, and the ends of the adjacent grippers away from the rotating shaft separate from each other.

[0017] Furthermore, it also includes a display panel for inputting a three-dimensional model of the neck. The three-dimensional model of the neck is established based on the support height of the electric actuator. The three-dimensional model of the neck includes a neck reference model with different degrees of head tilt and the thyroid simulated position corresponding to the neck reference model, the recommended installation orientation corresponding to the current mounting hole position, the clamping orientation and the clamping muscles, as well as the maximum traction block movement length corresponding to the clamping muscles in different clamping orientations. The display panel is electrically connected to the electric actuator.

[0018] The display panel is electrically connected to a controller, several indicator lights, and several pressure sensors. The indicator lights are located on both sides of the reference plate, and the straight-line illumination direction of adjacent indicator lights is located at the point where the adjacent grippers firmly clamp the hook body. The pressure sensors are located on the upper and lower sides of the angle adjustment groove. The pressure sensors are used to detect the real-time pressure data and pressure position when the sleeve applies pressure to the pressure sensor in the angle adjustment groove.

[0019] The controller is used to obtain the execution height at the current time based on the electric actuator, and to record the head tilt degree and mounting hole position at the current time. Based on the execution height, head tilt degree and mounting hole position, it outputs the recommended installation position, clamping position, clamping muscle and maximum traction movement length corresponding to the current time. Based on the recommended installation position, clamping position, clamping muscle and maximum traction movement length, it sends them to the display panel for display processing.

[0020] The controller is also used by physicians to select the clamping orientation and the execution parameters of the clamping muscles to recommend the installation orientation. It outputs the sleeve installation position corresponding to the clamping orientation, compares the sleeve installation position with the pressure position, and if they match, sends an irradiation command to the indicator light. If they do not match, it generates a color guidance command for the indicator light based on the orientation of the sleeve installation position and the pressure position.

[0021] Furthermore, the controller is also used to compare the real-time pressure data with the starting value when the sleeve installation position is consistent with the pressure position. If the real-time pressure data is less than the starting value, a standby command is sent to the indicator light; if the real-time pressure data is greater than the starting value, a lighting command is sent to the indicator light. Then, the controller obtains the fluctuation curve of the real-time pressure data after the current time. When the fluctuation curve continues to fluctuate, a maintenance command is sent to the indicator light.

[0022] When the fluctuation curve stabilizes, a standby command is sent to the indicator light, and the duration is recorded. The duration is compared with the set reminder value. If the duration is greater than the reminder value, a reminder command is sent to the indicator light; if the duration is less than the reminder value, a standby command is sent to the indicator light.

[0023] Furthermore, the indicator light is used to emit a focused visible light beam and a white diffused light beam.

[0024] Furthermore, an arc-shaped guide plate is fixedly connected to the side of the mounting plate near the shoulder bracket, with the top side of the guide plate being smaller than the bottom side.

[0025] Furthermore, a fabric layer is fixedly connected to the side of the arc-shaped frame away from the second and third telescopic rods.

[0026] The above approach has the following beneficial effects:

[0027] 1. This solution uses a pillow to support the head and provide cushioning space. The height of the first telescopic rod is adjustable to ensure that the head support restrains both sides of the head, reducing interference caused by head movement during subsequent muscle traction using the hook body. The shoulder support supports both sides of the shoulders, reducing changes in the distance between the shoulders and head. By ensuring the stability of the neck support, the stability of muscle traction is ensured.

[0028] 2. This approach ensures the stability of the head and neck by using a head support and shoulder brace. It also utilizes the height adjustment of the second and third telescopic rods to accommodate the different cervical spine mobility, thyroid position, and surgical location of different patients. It allows for the advance selection of the patient's head tilt adjustment needs, facilitating the exposure of the upper pole of the thyroid gland during subsequent muscle traction and reducing the difficulty of intraoperative operation.

[0029] 3. This method uses a clamping mechanism to adjust the installation position of the mounting plate, so as to select a suitable installation position for clamping and fixing according to different patients' body shapes. The clamping mechanism also adjusts the traction muscle orientation of the hook body to maintain an appropriate traction orientation and traction force, replacing manual traction, maintaining stability during muscle traction, facilitating exposure of the upper pole of the thyroid gland, and reducing the difficulty of intraoperative operation. Attached Figure Description

[0030] Figure 1 This is an isometric view of an embodiment of the muscle traction device for thyroid surgery according to the present invention;

[0031] Figure 2 This is a top view of an embodiment of the muscle traction device for thyroid surgery according to the present invention;

[0032] Figure 3 This is a side view of an embodiment of the muscle traction device for thyroid surgery according to the present invention;

[0033] Figure 4 for Figure 3 A schematic cross-sectional view along the AA direction.

[0034] The reference numerals in the accompanying drawings of the instruction manual include: 1. Mounting plate; 11. Guide plate; 12. Mounting hole; 2. Head support; 21. First telescopic rod; 22. First slider; 23. Restraint strap; 3. Shoulder support; 31. Second telescopic rod; 32. Third telescopic rod; 33. Second slider; 34. Third slider; 4. Arc frame; 41. First block; 42. Second block; 43. Central shaft; 5. Reference plate; 51. Sleeve; 52. Pulling block; 53. Gripper; 54. Indicator light. Detailed Implementation

[0035] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0038] The following detailed description illustrates the specific implementation method:

[0039] Example 1:

[0040] As attached Figures 1 to 4The image shows a muscle traction device for thyroid surgery, comprising a mounting plate 1 placed on a bed. The mounting plate 1 has a pillow (not shown), several head supports 2, and several shoulder supports 3. The head supports 2 are located above the pillow, and the shoulder supports 3 are hinged to the head supports 2. The mounting plate 1 has several clamping mechanisms for mounting hook bodies. In this embodiment, the hook body is an arc-shaped hook (not shown). An arc-shaped guide plate 11 is fixedly connected to the side of the mounting plate 1 near the shoulder supports 3. The top side of the guide plate 11 is smaller than the bottom side. By conforming the arc-shaped guide plate 11 to the shoulder shape, the placement stability of the guide plate 11 during the fitting process is improved. The pressure exerted on the guide plate 11 by the patient's body weight ensures the stability of the guide plate 11 during placement.

[0041] In this embodiment, compared with the straight-line shape of the traditional retractor, the traditional retractor has a small contact area between the hook head and the muscle, resulting in a small force-bearing area and making it prone to compression injury. Furthermore, the extension of the straight wall of the traditional retractor may obstruct the view after entering the surgical field. In contrast, the bow-shaped retractor increases the contact area with the muscle, reduces the obstruction of the surgical field by the straight wall of the traditional retractor, and opens the surgical field vertically, reducing the need for surgical wound exposure.

[0042] The head support 2 is fixedly connected to the bottom of the first telescopic rod 21, which is fixedly connected to the mounting plate 1. The shoulder support 3 is fixedly connected to the bottom of the second telescopic rod 31 and the third telescopic rod 32, which are fixedly connected to the mounting plate 1. An arc-shaped frame 4 for adjusting the degree of head tilt is provided between the head support 2 and the shoulder support 3. The two ends of the arc-shaped frame 4 are respectively hinged to the second telescopic rod 31 and the third telescopic rod 32. The clamping mechanism is located on both sides of the arc-shaped frame 4.

[0043] The head support 2 is symmetrically arranged around the pillow. The head support 2 has a first shaft rotatably connected to one end near the second telescopic rod 31. A first collar is provided between the first shaft and the first telescopic rod 21. The first collar is rotatably connected to the first shaft. The second telescopic rod 31 is hinged to the first collar. The first collar is fixedly connected to one end of the arc frame 4.

[0044] The head support 2 is provided with a restraint strap 23 at one end near the first telescopic rod 21. The restraint strap 23 is located between adjacent head supports 2. Both ends of the restraint strap 23 are fixedly connected to collars, which slide in cooperation with the head support 2. The mounting plate 1 has a first sliding groove, in which a first slider 22 slides in cooperation. The first slider 22 is fixedly connected to the end of the first telescopic rod 21 away from the head support 2.

[0045] The arc-shaped frame 4 has a cloth layer fixedly connected to the side away from the second telescopic rod 31 and the third telescopic rod 32. The cloth layer covers the surface of the arc-shaped frame 4 to reduce the possible damage caused by direct contact between the patient's neck and the arc-shaped frame 4. At the same time, the replaceable cloth layer makes it easy to replace and clean it as needed, meeting the needs of infection prevention and convenient replacement in actual use.

[0046] The arc-shaped frame 4 includes a first block 41 and a second block 42. A central shaft 43 is rotatably fitted at the center of the first block 41 and the center of the second block 42. A support telescopic rod is fixedly connected at the center of the central shaft 43. The end of the support telescopic rod away from the central shaft 43 is fixedly connected to the mounting plate 1. The end of the first block 41 away from the central shaft 43 is fixedly connected to a first collar. The top of the third telescopic rod 32 is rotatably fitted with a second collar. The second collar is rotatably fitted with a second shaft. The second shaft is rotatably fitted with the end of the shoulder bracket 3 near the third telescopic rod 32. The second collar is fixedly connected to the end of the second block 42 away from the central shaft 43.

[0047] The mounting plate 1 has a second slide groove and a third slide groove. The second slide groove is located between the first slide groove and the third slide groove. A second slider 33 is slidably fitted in the second slide groove. The second slider 33 is fixedly connected to the end of the second telescopic rod 31 away from the first axis. The third slider 34 is fixedly connected to the end of the third telescopic rod 32 away from the second axis.

[0048] The clamping mechanism includes an arc-shaped reference plate 5, with an electric push rod hinged to the bottom of the reference plate 5. A locking block is fixedly connected to the end of the electric push rod away from the reference plate 5. Several mounting holes 12 are opened on the mounting plate 1, which are symmetrically arranged around the arc frame 4. The locking block is interference-fitted with the mounting hole 12. An angle adjustment groove is opened on the reference plate 5, and a sleeve 51 is slidably fitted in the angle adjustment groove. A pulling block 52 is slidably fitted in the sleeve 51. Several grippers 53 are hinged to the end of the pulling block 52 near the arc frame 4. A rotating shaft is rotatably fitted between the grippers 53 and the rotating part of the pulling block 52. A spring is connected between adjacent grippers 53. Positioning holes are opened on both the pulling block 52 and the sleeve 51. The positioning holes on the sleeve 51 are evenly arranged along the straight direction of the sleeve 51, and a pin is slidably fitted in the positioning hole.

[0049] When adjacent grippers 53 are in a parallel and fitted state, both ends of grippers 53 abut against sleeves 51, the spring is in a compressed state, and the ends of adjacent grippers 53 away from the rotating shaft abut against each other; when adjacent grippers 53 are at their maximum opening angle, both ends of grippers 53 separate from sleeves 51, the spring is in a naturally extended state, and the ends of adjacent grippers 53 away from the rotating shaft separate from each other.

[0050] The specific implementation process is as follows:

[0051] First, during the fixation of the patient's head, the first slider 22 slides within the first groove on the mounting plate 1 to adjust the width between the adjacent first telescopic rods 21 and the head support 2, adapting to the support needs of different patient head sizes. A pillow provides head support and cushioning space, and the support height of the first telescopic rods 21 is adjusted, causing the elastic restraint straps 23 on the head support 2 to press firmly against the patient's forehead, adapting to the length support needs after the adjacent head support 2 moves. Based on the head support 2 blocking and fixing the sides of the patient's head, and further secured by the restraint straps 23, movement of the patient's head during muscle traction is reduced, ensuring stability during muscle traction.

[0052] When adjusting the degree of head tilt, the second slider 33 is first slid in the second groove, so that the width between the adjacent second telescopic rod 31 is adjusted. At the same time, the third slider 34 is slid in the third groove, so that the width between the adjacent third telescopic rod 32 is adjusted, so that the first block 41 and the second block 42 are on the same horizontal line, so as to adapt to the neck diameter of different patients for support adjustment.

[0053] The support length of the second telescopic rod 31 is then adjusted to support the first shaft, the first block 41, and the end of the head support 2 near the second telescopic rod 31, thereby adjusting the height of the patient's neck near the back of the head. The support height of the second shaft, the second block 42, and the shoulder support 3 are then adjusted by the support height of the third telescopic rod 32, thereby adjusting the support of the end of the patient's neck near the torso.

[0054] The height of the central axis 43 at the center of the first block 41 and the second block 42 is adjusted by the support height adjustment of the telescopic rod, so that the first block 41 and the second block 42 can rotate around the central axis 43. With the second telescopic rod 31 supporting the height adjustment of the first block 41 and the third telescopic rod 32 supporting the height adjustment of the second block 42, the degree of head tilt of the patient can be adjusted, which facilitates the exposure of the upper pole of the thyroid gland during subsequent muscle traction and reduces the difficulty of intraoperative operation.

[0055] The clamping mechanism is adjusted to the mounting position of the mounting plate 1. Based on the mounting hole 12 on the mounting plate 1, the traction mechanism can be arranged in a suitable position according to the muscle traction needs. Then, the sleeve 51 is arranged by the angle adjustment groove on the reference plate 5 so that it can be adjusted at a small angle along the arrangement direction of the angle adjustment groove to provide a suitable muscle traction orientation.

[0056] After selecting a suitable muscle traction position, the clamp 53 is moved by the traction block 52. When the two ends of the clamp 53 make contact with the inner wall of the sleeve 51, the sleeve 51 pushes the clamp 53 to close towards the center of the sleeve 51, so that the clamp 53 rotates around the axis to close, so that the clamp 53 clamps the hook body placed at the center. Then, the clamp 53 is slid within the sleeve 51 by the traction block 52 to adjust the force of the hook body clamped by the clamp 53 on the muscle traction. The positioning holes on the sleeve 51 and the traction block 52 are then aligned and locked in place by a pin to ensure the long-term maintenance of the muscle traction force, maintain the stability during the muscle traction process, facilitate the exposure of the upper pole of the thyroid gland, and reduce the difficulty of the operation during the operation.

[0057] Example 2:

[0058] The difference from Embodiment 1 is that it also includes a display panel for inputting a three-dimensional model of the neck. The three-dimensional model of the neck is established based on the support height of the electric actuator. The three-dimensional model of the neck includes a neck reference model with different degrees of head tilting back, as well as the thyroid simulated position corresponding to the neck reference model, the recommended installation orientation corresponding to the current mounting hole 12 position, the clamping orientation and the clamping muscles, and the maximum traction block 52 movement length corresponding to different clamping orientations. The display panel is electrically connected to the electric actuator. The establishment of three-dimensional images of the neck bones and muscles based on neck ultrasound images is existing technology and will not be described in detail in this embodiment.

[0059] The display panel is electrically connected to a controller, several indicator lights 54, and several pressure sensors. The indicator lights 54 are located on both sides of the reference plate 5 and are used to emit focused visible light and white diffused light. The focused visible light is used for marking to determine the installation status of the gripper 53 on the hook body, while the white diffused light illuminates the surgical wound to provide a bright field of vision during muscle traction, facilitating clamping.

[0060] The straight-line illumination direction of the adjacent indicator lights 54 is located at the point where the adjacent grippers 53 firmly clamp the hook body; the pressure sensor is located on the upper and lower sides of the angle adjustment groove. The pressure sensor is used to detect the real-time pressure data and pressure position when the sleeve 51 applies pressure to the pressure sensor in the angle adjustment groove.

[0061] The controller is used to obtain the execution height at the current time based on the electric actuator, and to record the head tilt degree and the position of the mounting hole 12 at the current time. Based on the execution height, head tilt degree and the position of the mounting hole 12, it outputs the recommended installation position, clamping position, clamping muscle and maximum traction movement length corresponding to the current time. Based on the recommended installation position, clamping position, clamping muscle and maximum traction movement length, it sends them to the display panel for display processing.

[0062] The controller is also used by physicians to select the clamping orientation and clamping muscle execution parameters to recommend the installation orientation. The output of the clamping orientation corresponds to the installation position of the sleeve 51. The sleeve 51 installation position is compared with the pressure position. If they match, an irradiation command is sent to the indicator light 54. If they do not match, a color guidance command is generated for the indicator light 54 based on the orientation of the sleeve 51 installation position and the pressure position. The color guidance command is generated with the center of the angle adjustment groove as the reference point. The indicator light 54 corresponding to the sleeve 51 installation position to the left of the reference point is yellow, and the indicator light 54 corresponding to the sleeve 51 installation position to the right of the reference point is green.

[0063] For example, by displaying the three-dimensional model of the neck on the display panel, the recommended clamping position under the current support height of the electric push rod and different degrees of head tilt can be determined. This provides a reference for the physician to determine the direction of muscle traction, and allows the physician to choose the appropriate muscle traction position during the installation of the retractor body. This reduces the interference of the retractor body on the surgical field of vision, thereby reducing the physician's reliance on surgical experience and ensuring that muscle traction is maintained under the appropriate traction position and traction force, thus reducing the difficulty of intraoperative operation.

[0064] During the process of clamping and stabilizing the hook body with the gripper 53, the overlapping points of the gripper 53 clamping the hook body are marked by the indicator light 54. This is to determine whether the installation position of the hook body and the gripper 53 is consistent based on the size of the illumination points on both sides of the gripper 53, thereby ensuring the stability of the gripper 53 in installing the hook body. At the same time, the indication of the indicator light 54 makes it easy to determine the moving length of the gripper 53.

[0065] The current pressure position is then compared with the installation position of the sleeve 51, and the indicator light 54 provides reminders according to the color guidance instructions. This helps to keep the hook body and the clamping position consistent, providing a reference for exposing the upper pole of the thyroid gland and reducing the difficulty of intraoperative operation.

[0066] Example 3:

[0067] The difference from Embodiment 2 is that the controller is also used to compare the real-time pressure data with the start value when the sleeve 51 is installed at the same pressure position. If the real-time pressure data is less than the start value, a standby command is sent to the indicator light 54; if the real-time pressure data is greater than the start value, a lighting command is sent to the indicator light 54. Then, the fluctuation curve of the real-time pressure data after the current time is obtained. When the fluctuation curve continues to fluctuate, a maintenance command is sent to the indicator light 54.

[0068] When the fluctuation curve stabilizes, a standby command is sent to indicator light 54, and the duration is recorded. The duration is compared with the set reminder value. If the duration is greater than the reminder value, a reminder command is sent to indicator light 54; if the duration is less than the reminder value, a standby command is sent to indicator light 54.

[0069] For example, during the installation of the retractor body, the pressure applied to the pressure sensor by moving the traction block 52 determines whether the retractor body is installed successfully. The indicator light 54 is then automatically activated to provide illumination, facilitating the installation of the retractor body by the physician. When the retractor body maintains traction on the muscle (i.e., when the fluctuation curve tends to stabilize), the duration is recorded. Within a set time range, the indicator light 54 switches its light according to the reminder instruction to provide a reminder, thereby reducing the pressure damage that may occur during prolonged traction of the muscle by the retractor body and thus reducing the difficulty of the operation during surgery.

[0070] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A muscle traction device for thyroid surgery, comprising a mounting plate (1) placed on a bed, the mounting plate (1) having a pillow, several head supports (2) and several shoulder supports (3) mounted on it, the head supports (2) being located above the pillow, the shoulder supports (3) being hinged to the head supports (2), and the mounting plate (1) having several clamping mechanisms for mounting the hook body; characterized in that, The head support (2) has a first telescopic rod (21) fixedly connected to the mounting plate (1) at the bottom, and the shoulder support (3) has a second telescopic rod (31) and a third telescopic rod (32) fixedly connected to the mounting plate (1) at the bottom. An arc-shaped frame (4) for adjusting the degree of head tilt is provided between the head support (2) and the shoulder support (3). The two ends of the arc-shaped frame (4) are respectively hinged to the second telescopic rod (31) and the third telescopic rod (32). The clamping mechanism is located on both sides of the arc-shaped frame (4).

2. The muscle traction device for thyroid surgery according to claim 1, characterized in that, The hook body is an arc-shaped hook.

3. The muscle traction device for thyroid surgery according to claim 2, characterized in that, The head support (2) is symmetrically arranged around the pillow. The head support (2) is rotatably fitted with a first shaft at one end near the second telescopic rod (31). A first collar is provided between the first shaft and the first telescopic rod (21). The first collar is rotatably fitted with the first shaft. The second telescopic rod (31) is hinged to the first collar. The first collar is fixedly connected to one end of the arc frame (4). The head support (2) is provided with a restraint strap (23) at one end near the first telescopic rod (21). The restraint strap (23) is located between adjacent head supports (2). Both ends of the restraint strap (23) are fixedly connected with collars, and the collars slide with the head support (2). The mounting plate (1) has a first groove, and a first slider (22) is slidably fitted in the first groove. The first slider (22) is fixedly connected to the end of the first telescopic rod (21) away from the head bracket (2).

4. The muscle traction device for thyroid surgery according to claim 3, characterized in that, The arc frame (4) includes a first block (41) and a second block (42). A central shaft (43) is rotatably fitted at the center of the first block (41) and the second block (42). A support telescopic rod is fixedly connected at the center of the central shaft (43). The end of the support telescopic rod away from the central shaft (43) is fixedly connected to the mounting plate (1). The first piece (41) is fixedly connected to the first collar at the end away from the central axis (43). The top of the third telescopic rod (32) is rotatably fitted with the second collar. The second collar is rotatably fitted with the second shaft. The second shaft is rotatably fitted with the end of the shoulder bracket (3) near the third telescopic rod (32). The second collar is fixedly connected to the end of the second piece (42) away from the central axis (43). The mounting plate (1) has a second slide groove and a third slide groove. The second slide groove is located between the first slide groove and the third slide groove. A second slider (33) is slidably fitted in the second slide groove. A third slider (34) is located in the third slide groove. The second slider (33) is fixedly connected to the end of the second telescopic rod (31) away from the first axis. The third slider (34) is fixedly connected to the end of the third telescopic rod (32) away from the second axis.

5. The muscle traction device for thyroid surgery according to claim 4, characterized in that, The clamping mechanism includes an arc-shaped reference plate (5), with an electric push rod hinged to the bottom of the reference plate (5). A locking block is fixedly connected to the end of the electric push rod away from the reference plate (5). Several mounting holes (12) are opened on the mounting plate (1). The mounting holes (12) are symmetrically arranged around the arc frame (4). The locking block is interference-fitted with the mounting holes (12). An angle adjustment groove is provided on the reference plate (5), and a sleeve (51) is slidably fitted in the angle adjustment groove. A pulling block (52) is slidably fitted in the sleeve (51). Several grippers (53) are hinged to one end of the pulling block (52) near the arc frame (4). A rotating shaft is rotatably fitted between the grippers (53) and the rotating part of the pulling block (52). A spring is connected between adjacent grippers (53). Both the pulling block (52) and the sleeve (51) have positioning holes. The positioning holes on the sleeve (51) are evenly arranged along the straight direction of the sleeve (51). A pin is slidably fitted in the positioning hole. When the adjacent jaws (53) are in a parallel contact state, the two ends of the jaws (53) abut against the sleeve (51) respectively, the spring is in a compressed state, and the ends of the adjacent jaws (53) away from the rotating shaft abut against each other; when the adjacent jaws (53) are at the maximum opening angle, the two ends of the jaws (53) separate from the sleeve (51) respectively, the spring is in a naturally extended state, and the ends of the adjacent jaws (53) away from the rotating shaft separate from each other.

6. The muscle traction device for thyroid surgery according to claim 5, characterized in that, It also includes a display panel for inputting a three-dimensional model of the neck. The three-dimensional model of the neck is established based on the support height of the electric push rod. The three-dimensional model of the neck includes a neck reference model with different degrees of head tilt and the thyroid simulation position corresponding to the neck reference model, the recommended installation position corresponding to the current mounting hole (12) position, the clamping position and the clamping muscle, and the maximum traction block (52) movement length of the clamping muscle corresponding to different clamping positions. The display panel is electrically connected to the electric push rod. The display panel is electrically connected to a controller, several indicator lights (54) and several pressure sensors. The indicator lights (54) are located on both sides of the reference plate (5). The straight-line illumination direction of adjacent indicator lights (54) is located at the point where adjacent grippers (53) firmly clamp the hook body. The pressure sensors are located on the upper and lower sides of the angle adjustment groove. The pressure sensors are used to detect the real-time pressure data and pressure position of the sleeve (51) when it applies pressure to the pressure sensor in the angle adjustment groove. The controller is used to obtain the execution height at the current time based on the electric actuator, and to record the head tilt degree and the position of the mounting hole (12) at the current time. Based on the execution height, head tilt degree and the position of the mounting hole (12), it outputs the recommended installation position, clamping position, clamping muscle and maximum traction movement length corresponding to the current time. Based on the recommended installation position, clamping position, clamping muscle and maximum traction movement length, it sends them to the display panel for display processing. The controller is also used by physicians to select the clamping orientation and clamping muscle execution parameters to recommend the installation orientation. The output of the clamping orientation corresponds to the sleeve (51) installation position. The sleeve (51) installation position is compared with the pressure position. If they match, an irradiation command is sent to the indicator light (54). If they do not match, a color guidance command corresponding to the indicator light (54) is generated based on the orientation of the sleeve (51) installation position and the pressure position.

7. The muscle traction device for thyroid surgery according to claim 6, characterized in that, The controller is also used to compare the real-time pressure data with the starting value when the sleeve (51) is installed at the same position as the pressure position. If the real-time pressure data is less than the starting value, a standby command is sent to the indicator light (54). If the real-time pressure data is greater than the starting value, a lighting command is sent to the indicator light (54). Then, the fluctuation curve of the real-time pressure data after the current time is obtained. When the fluctuation curve continues to fluctuate, a maintenance command is sent to the indicator light (54). When the fluctuation curve stabilizes, a standby command is sent to the indicator light (54), and the duration is recorded. The duration is compared with the set reminder value. If the duration is greater than the reminder value, a reminder command is sent to the indicator light (54); if the duration is less than the reminder value, a standby command is sent to the indicator light (54).

8. The muscle traction device for thyroid surgery according to claim 7, characterized in that, The indicator light (54) is used to emit a focused visible light and a white diffused light.

9. The muscle traction device for thyroid surgery according to claim 8, characterized in that, The mounting plate (1) is fixedly connected to an arc-shaped guide plate (11) on one side near the shoulder bracket (3), with the top side of the guide plate (11) being smaller than the bottom side of the guide plate (11).

10. The muscle traction device for thyroid surgery according to claim 9, characterized in that, A fabric layer is fixedly connected to the side of the arc frame (4) away from the second telescopic rod (31) and the third telescopic rod (32).

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