Thyroid surgery retractor adjustment device

Abstract

The present application relates to the technical field of medical apparatus and instruments, in order to solve the problems of the existing retractor distraction device, such as unstable fixation, insufficient exposure of the surgical field, etc., a thyroid surgery retractor adjusting device is provided, which comprises a base detachably connected with a bed body, further comprising a lifting mechanism movably installed on the base, a transverse adjusting rod at the top of the lifting mechanism, and a retractor adjusting mechanism at the end of the transverse adjusting rod, the retractor adjusting mechanism comprising an adjusting bolt, an L-shaped adjusting cylinder, a traction rope and a retractor assembly, the adjusting bolt being connected with the transverse adjusting rod through a mounting seat, the L-shaped adjusting cylinder being arranged below the mounting seat, one end of the traction rope being connected with the adjusting bolt and the other end of the traction rope being connected with the retractor assembly after passing through the L-shaped adjusting cylinder, the retractor assembly being adjusted by pulling the traction rope through the adjusting bolt. The present application can ensure the effective distraction depth and stability of the surgical incision, fully expose the surgical field, and greatly improve the clinical application range.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a thyroid surgery retractor adjustment device. Background Technology

[0002] Thyroidectomy is a surgical procedure for treating thyroid diseases, mainly divided into total resection and partial resection. Total resection involves removing all tissue from one side of the thyroid gland, usually preserving the contralateral side to maintain physiological function, and is suitable for malignant lesions such as thyroid cancer. Partial resection is suitable for benign tumors, goiter, and hyperthyroidism. Indications for this surgery include malignant thyroid tumors, goiter compressing the trachea, and hyperthyroidism unresponsive to drug treatment. Contraindications include diffuse goiter in young people, postoperative recurrence, and patients with severe complications. The surgery is performed under cervical plexus anesthesia or general anesthesia, and is completed through steps such as separating the blood vessels around the thyroid gland, managing the isthmus, and removing the diseased tissue. Care must be taken to protect the recurrent laryngeal nerve and parathyroid glands during the operation. Postoperative recurrence or complications such as exophthalmos may occur. Surgery during pregnancy requires careful consideration.

[0003] There are three main types of thyroid surgery: First, traditional open thyroid surgery, commonly known as neck surgery, involves making a transverse incision in the neck, with a length controlled to approximately 2-5 cm. Second, endoscopic-assisted thyroid surgery. Third, completely endoscopic thyroid surgery, which can be further divided into sternal approach, oral approach, and axillary approach. The choice of surgical method should be determined based on individual preferences and the specific characteristics of the patient's condition. With the advancement of endoscopic techniques, thyroid surgery is becoming increasingly minimally invasive, ensuring aesthetic outcomes while treating the underlying condition.

[0004] However, existing surgical retractors for thyroid tumors often have the following drawbacks: 1) Common retractor structures pull the skin flap at the incision site away from the incision site. However, the retractors in traditional retractor structures are relatively long and need to be extended outwards for hand-holding or fixation. Since the thyroid surgery area is located in the patient's neck or armpit, the space for retractor fixation is not ideal, making it difficult to effectively fix the retractors. In addition, some retractor devices use elastic toothed clips for traction. When greater traction is required, traction may loosen or the surgical field may not be fully exposed. Furthermore, the fixation of the entire retractor frame may not be stable enough, which is not conducive to the stability of the surgical field exposure. 2) Some retractor devices do not provide adequate exposure of the superior thyroid gland, which is a key area that needs to be exposed during surgery. Insufficient exposure may lead to difficulties in surgical operation and increase surgical risks. 3) The design of some retractor devices restricts the surgeon's operating space, making the surgical operation less flexible and increasing the difficulty and risk of the operation.

[0005] Therefore, there is an urgent need to set up a thyroid surgery retractor adjustment device that is convenient for flexibly adjusting the pulling angle and the撑开 stability. Summary of the Invention

[0006] In view of the deficiencies existing in the above-mentioned prior art, the present invention aims to provide a thyroid surgery retractor adjustment device. By setting up a lifting mechanism, a horizontal adjustment rod, a retractor adjustment mechanism and an angle adjustment mechanism, it can flexibly adjust the height, horizontal position and撑开 strength of the retractor according to the surgical needs, avoiding the problems of unsatisfactory fixed space and easy loosening of the traditional retractor, ensuring the stable exposure of the surgical field, and using the angle adjustment mechanism to adjust the angle of the retractor assembly, greatly expanding the clinical application range and practicality.

[0007] In order to achieve the above technical objectives, the technical solutions adopted by the present invention are as follows: A thyroid surgery retractor adjustment device includes a base detachably connected to the bed body, and further includes: A lifting mechanism, movably installed on the base; A horizontal adjustment rod, arranged at the top of the lifting mechanism, and a retractor adjustment mechanism is arranged at the end of the horizontal adjustment rod. The retractor adjustment mechanism includes an adjustment bolt, an L-shaped adjustment cylinder, a pulling rope and a retractor assembly, where: The adjustment bolt is connected to the horizontal adjustment rod through a mounting seat; The L-shaped adjustment cylinder is arranged below the mounting seat; One end of the pulling rope is connected to the adjustment bolt, and after passing through the L-shaped adjustment cylinder, the other end is connected to the retractor assembly. The retractor assembly is adjusted by pulling the traction rope with the adjustment bolt.

[0008] As a further preferred solution of the above technical solution, the retractor assembly includes: An outer frame, connected to the end of the L-shaped adjustment cylinder, and a silica gel protective sleeve is sleeved on the outer frame; An inner support rod, arranged in the L-shaped adjustment cylinder and one end extending to the middle of the outer frame, and the pulling rope is穿设于 the inner support rod; [[ID=?]]

[0009] Further preferably, the outer frame includes: An outer shaping frame, symmetrically arranged in a bent shape on both sides of the inner support rod; A deformable bent rod, in a "factory" shape structure, and there are two of them, respectively corresponding to and connected to the two outer shaping frames; [[ID=3?]] A bottom stop rod, in a U-shaped structure and its two ends are respectively connected to the two deformable bent rods.

[0010] As a preferred implementation manner, the撑开 structure includes: It should be noted that the Chinese character "撑开" in the original text seems to be an incorrect or unclear expression. It may need to be further clarified or corrected in the original content for a more accurate translation. The above translation is based on the existing text as much as possible. Two threaded rods, each threaded rod having its end connected to the opposite sidewall of a deformable bent rod; The sleeve shaft has threads in opposite directions inside. The sleeve shaft is sleeved on two threaded rods and is threadedly engaged with the two threaded rods.

[0011] A further preferred embodiment is as follows: a compensation baffle is also provided at the bottom of the outer frame, and the ends of the traction rope are divided into a main traction head and two lateral traction heads. The two lateral traction heads are respectively connected to the lower end of the corresponding deformable curved rod. The main traction head is connected to the compensation baffle after passing around the bottom baffle. The compensation baffle rotates at an angle as the outer frame unfolds, thereby compensating for the height of the outer frame.

[0012] As a preferred embodiment of the above solution, the bottom stop bar is internally provided with: The first winding wheel is movably installed in the bottom stop bar, and the main traction head is wound around the first winding wheel; Two torsion springs are provided at both ends of the first winding wheel, with the end of the torsion spring away from the first winding wheel fixedly connected to the bottom stop.

[0013] A further preferred embodiment is that the end of the lateral adjustment rod is also provided with an angle adjustment mechanism, including: The mounting rod is fixedly connected to the horizontal adjusting rod; The adjusting component is threaded to the lower end of the mounting rod, and the end of the adjusting component is connected to the outer wall of the L-shaped adjusting cylinder.

[0014] As a preferred embodiment, the base is also provided with a position adjustment mechanism, including: The upright plate is fixedly installed on the base, and threaded holes are provided on the upright plate; The adjustment handle has a "Z" shaped structure, with its distal end passing through a threaded hole and engaging with the threaded part of the vertical plate. The distal end of the adjustment handle is movably connected to the lifting mechanism.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. By setting up a hook adjustment mechanism, the rotation of the adjusting bolt drives the traction rope to move. Then, the traction rope, in conjunction with the spreading structure and the compensating baffle, drives the sleeve shaft during movement, causing the two threaded rods to move to opposite sides, pushing open the deformable bent rod. At the same time, it rotates the bottom compensating baffle from a horizontal state to an inclined or even vertical state to compensate for the change in spreading height caused by the expansion of the spread area due to the deformation of the deformable bent rod. This maintains the effective spreading depth of the surgical incision, fully exposes the surgical field, and ensures the stability of the surgical incision spreading, avoiding interference with the surgical operation.

[0016] 2. By setting an angle adjustment mechanism at the end of the horizontal adjustment rod, the tilt angle of the L-shaped adjustment cylinder and the hook assembly can be easily changed, which can meet the needs of both cervical incision surgery (bilateral opening) and axillary approach surgery (unilateral opening), greatly improving the clinical applicability.

[0017] 3. Through the cooperation of the lifting mechanism, the horizontal adjustment rod and the retractor adjustment mechanism, the height, horizontal position and opening force of the retractor can be flexibly adjusted according to the needs of the surgery, avoiding the problems of the traditional retractor's unsatisfactory fixation space and easy loosening, and ensuring stable exposure of the surgical field.

[0018] 4. By installing a silicone protective sleeve on the outer frame, the silicone protective sleeve can expand and contract with the area of ​​the outer frame, effectively buffering the compression of the incision flap by the hook assembly and reducing the risk of tissue damage. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0020] Figure 1 This is a schematic diagram of the overall structure of a thyroid surgery retractor adjustment device according to the present invention; Figure 2 This is a side view of the thyroid surgery retractor adjustment device of the present invention; Figure 3 This is a schematic diagram of the structure of the lateral adjusting rod of the present invention; Figure 4 This is a schematic diagram of the position adjustment mechanism of the present invention; Figure 5 This is a schematic diagram of the hook adjustment mechanism of the present invention; Figure 6 This is a longitudinal sectional view of the hook adjustment mechanism of the present invention; Figure 7 This is a partially enlarged longitudinal section view of the hook adjustment mechanism of the present invention; Figure 8 This is a schematic diagram of the hook assembly of the present invention; Figure 9 This is a schematic diagram of the structure of the hook assembly (with silicone protective sleeve removed) of the present invention; Figure 10 This diagram shows the relationship between the end of the traction rope, the deformable bending rod, and the compensating baffle of the present invention. Figure 11 This is an internal sectional view of the bottom stop bar of the present invention; Figure 12 This is an internal cross-sectional view of the expandable structure of the present invention; Figure 13 This is a schematic diagram of the structure of the sleeve shaft of the present invention; Figure 14 This is a schematic diagram of the angle adjustment mechanism of the present invention; Figure 15 This is a diagram showing the thyroid surgery retractor adjustment device of the present invention installed on the bed.

[0021] In the diagram: 1. Base; 2. Lifting mechanism; 3. Lateral adjustment rod; 4. Hook adjustment mechanism; 41. Adjusting bolt; 42. L-shaped adjusting cylinder; 43. Pull rope; 431. Main traction head; 432. Lateral traction head; 44. Hook assembly; 441. Outer frame; 4411. Outer shaping frame; 4412. Deformable bent rod; 4413. Bottom stop bar; 442. Internal support rod; 443. Spreading structure; 4431. Threaded rod; 4432. Sleeve shaft; 4433. Second winding wheel; 444. Compensating baffle; 445. Collar; 45. Mounting seat; 5. Angle adjustment mechanism; 51. Mounting rod; 52. Adjusting component; 6. Position adjustment mechanism; 61. Vertical plate; 62. Adjusting handle; 7. First winding wheel; 8. Torsion spring. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments.

[0023] It should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and 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 present invention.

[0024] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0025] 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 also 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.

[0026] Example 1: Reference Figures 1-15 This invention provides a thyroid surgery retractor adjustment device, including a base 1 with an opening on one side. The base 1 is detachably connected to the bed, and a fixing bolt is connected to the bottom of the base 1. After connecting the base 1 to the bed, the base 1 is secured by tightening the fixing bolt. It also includes a position adjustment mechanism 6, a lifting mechanism 2, and a lateral adjustment rod 3 (e.g., Figure 3 As shown) and the hook adjustment mechanism 4, the position adjustment mechanism 6 is connected to the top of the base 1. The top of the base 1 is provided with a guide groove. The lifting mechanism 2 is movably installed in the guide groove and connected to the position adjustment mechanism 6. The position adjustment mechanism 6 can be used to adjust the position of the lifting mechanism 2 on the base 1 in the horizontal direction. The horizontal adjustment rod 3 is set at the top of the lifting mechanism 2. The end of the horizontal adjustment rod 3 is provided with a hook adjustment mechanism 4 for opening the surgical incision of the thyroid patient.

[0027] Specifically, such as Figure 4 As shown, the position adjustment mechanism 6 includes a vertical plate 61 and an adjustment handle 62. The vertical plate 61 is fixedly installed on the base 1 and has a threaded hole. The adjustment handle 62 has a "Z" shaped structure. The distal end of the adjustment handle 62 passes through the threaded hole and is threadedly engaged with the vertical plate 61. The distal end of the adjustment handle 62 is movably connected to the lifting mechanism 2. After the base 1 is connected to the bed and clamped in place, medical staff can manually crank the adjustment handle 62. The adjustment handle 62 engages with the threaded hole on the vertical plate 61 to adjust the lifting mechanism 2 to a suitable position in the horizontal direction.

[0028] Preferably, the lifting mechanism 2 in this embodiment adopts an electric push rod or hydraulic rod structure, and uses the lifting mechanism 2 to adjust the horizontal adjustment rod 3 vertically to a suitable height for surgical operation, so that the hook adjustment mechanism 4 can adapt to the patient's thyroid surgery.

[0029] like Figures 5-8As shown in the figure, the hook adjusting mechanism 4 includes an adjusting bolt 41, an L-shaped adjusting cylinder 42, a pulling rope 43 and a hook assembly 44. The adjusting bolt 41 is connected to the lateral adjusting rod 3 through a mounting seat 45. The L-shaped adjusting cylinder 42 is arranged below the mounting seat 45. One end of the pulling rope 43 is connected to the adjusting bolt 41. After the pulling rope 43 passes through the L-shaped adjusting cylinder 42, the other end thereof is connected to the hook assembly 44. In this embodiment, the mounting seat 45 has a U-shaped structure and is fixedly connected to the lateral adjusting rod 3. The mounting seat 45 is vertically penetrated with a bolt hole, and the adjusting bolt 41 is inserted into the bolt hole and is in threaded cooperation with the mounting seat 45. The pulling rope is pulled by the adjusting bolt 41 to adjust the hook assembly 44.

[0030] More specifically, the hook assembly 44 includes an outer frame 441, an inner support rod 442 and a撑开 structure 443. As Figure 9 shown in the figure, the outer frame 441 is fixedly connected to the end of the L-shaped adjusting cylinder 42. A silica gel protective sleeve is sleeved on the outer frame 441. The silica gel protective sleeve is made of medical material and has appropriate elasticity, and can expand and contract as the area of the outer frame 441 changes. The inner support rod 442 is arranged in the L-shaped adjusting cylinder 42, and one end of the inner support rod 442 extends to the middle of the outer frame 441. The pulling rope 43 is penetrated in the inner support rod 442. The撑开 structure 443 is perpendicularly connected to the inner support rod 442, and both ends of the撑开 structure 443 are connected to the outer frame 441. One end of the traction rope extends out of the inner support rod 442, bypasses the撑开 structure 443 and is connected to the outer frame 441.

[0031] Furthermore, the outer frame 441 includes an outer shaping frame 4411, a deformable bent rod 4412 and a bottom blocking rod 4413. The outer shaping frame 4411 is made of rigid material and is bent. There are two outer shaping frames 4411, which are symmetrically distributed on both sides of the inner support rod 442. The deformable bent rod 4412 has a "factory" - shaped structure. There are two deformable bent rods 4412, which are respectively connected to the two outer shaping frames 4411 correspondingly. The bottom blocking rod 4413 has a U-shaped structure, and both ends of the bottom blocking rod 4413 are fixedly connected to the two deformable bent rods 4412.

[0032] As Figure 9 、 Figures 12-13As shown, the spreading structure 443 includes two threaded rods 4431 and a sleeve shaft 4432. The two threaded rods 4431 are provided with opposite threads, and the ends of the two threaded rods 4431 are respectively connected to the opposite side walls of the deformable bent rod 4412. The sleeve shaft 4432 is provided with threads in opposite directions inside, and the sleeve shaft 4432 is sleeved on the two threaded rods 4431 and threadedly engaged with the two threaded rods 4431. In this embodiment, a second winding wheel 4433 is fixedly sleeved in the middle of the sleeve shaft 4432. The two ends of the second winding wheel 4433 are higher than the middle. After the pulling rope 43 extends out of the inner support rod 442, it winds at least two turns in the middle of the second winding wheel 4433 and then extends downward to connect to the outer frame 441.

[0033] In this embodiment, when the two threaded rods 4431 expand the two deformable bent rods 4412 to both sides, the overall height of the deformable bent rods 4412 decreases after deformation, which affects the degree of opening of the surgical incision for the patient. Therefore, the present invention also provides a compensating baffle 444 at the bottom of the outer frame 441. Figure 10 As shown, the compensation baffle 444 is rotatably connected to the bottom stop bar 4413 via a collar 445. The ends of the traction rope are separated into a main traction head 431 and two lateral traction heads 432. The two lateral traction heads 432 are respectively connected to the lower ends of the corresponding deformable bent bars 4412. The main traction head 431 passes around the bottom stop bar 4413 and is connected to the compensation baffle 444. The compensation baffle 444 rotates at an angle with the unfolded area of ​​the outer frame 441, thus compensating for the height of the outer frame 441. Specifically, during the adjustment of the pulling rope 43 by adjusting the bolt 41, the friction between the pulling rope 43 and the second winding wheel 4433 causes it to rotate with the sleeve shaft 4432. The rotation of the sleeve shaft 4432 causes... The two threaded rods 4431 move in opposite directions, pushing the deformable bent rod 4412 to deform to both sides. At this time, due to the change in shape of the deformable bent rod 4412, the bottom stop 4413 moves upward, reducing the original expansion range of the deformable bent rod 4412 at the surgical wound. At the same time, under the action of the traction rope 43, the compensation baffle 444 is pulled and rotated at an angle (the initial position of the compensation baffle 444 is horizontal). The change of the compensation baffle 444 from horizontal to vertical compensates for the upward movement of the bottom stop 4413, thereby avoiding the influence on the expansion depth of the surgical wound caused by the change in the expansion area of ​​the outer frame 441.

[0034] like Figure 11As shown, the bottom stop 4413 is equipped with a first winding wheel 7 and a torsion spring 8. The first winding wheel 7 is movably installed in the bottom stop 4413. The main traction head 431 passes through the collar 445 and is wound around the first winding wheel 7 (at least two turns). There are two torsion springs 8, which are located at the two ends of the first winding wheel 7 respectively. The end of the torsion spring 8 away from the first winding wheel 7 is fixedly connected to the bottom stop 4413. When the main traction head 431 of the traction rope is pulled upward, it rotates due to the friction between it and the first winding wheel 7. When the first winding wheel 7 rotates, the torsion spring 8 deforms. Therefore, after the traction rope 43 is released, the torsion spring 8 drives the first winding wheel 7 to automatically reset.

[0035] Example 2: To further enhance the practicality of this device in clinical thyroid surgery, based on the above-described embodiment 1, an angle adjustment mechanism 5 is also provided at the end of the horizontal adjustment rod 3, as detailed below: Reference Figure 5 , Figure 14 The angle adjustment mechanism 5 includes a mounting rod 51 and an adjusting component 52. The mounting rod 51 is fixedly connected to the end of the transverse adjusting rod 3. The adjusting component 52 is a bolt, which is threadedly connected to the lower end of the mounting rod 51. The end of the adjusting component 52 is fixedly connected to the outer wall of the L-shaped adjusting cylinder 42.

[0036] In this embodiment, the upper end of the L-shaped adjusting cylinder 42 is connected to the lower end of the mounting base 45 via a rotating shaft. The traction rope passes around the rotating shaft and then enters the L-shaped adjusting cylinder 42. A guide rope sleeve is also provided inside the L-shaped adjusting cylinder 42. The traction rope is threaded through the guide rope sleeve to ensure that the traction rope will not get tangled or knotted during the adjustment of the hook assembly 44. A certain length is reserved at one end of the traction rope located on the adjusting bolt 41. The reserved length can meet the needs of adjusting the angle of the L-shaped adjusting cylinder 42. Before using the hook assembly 44 to open the thyroid surgical incision of the patient, the end angle of the hook assembly 44 is adjusted according to the angle of the surgical operation. At this time, the tilt of the L-shaped adjusting cylinder 42 is changed by rotating the adjusting rod to push or pull it. The angle of the hook assembly 44 located at the end of the L-shaped adjusting cylinder 42 also changes accordingly.

[0037] Example 3: The general procedure for thyroid surgery is as follows: First, the patient is given general anesthesia and positioned with their head tilted back to fully expose the thyroid gland. After local disinfection and draping, once the anesthesia takes effect, the skin, subcutaneous tissue, and anterior neck muscles are incised to expose the thyroid tissue. The mass is located and locally excised. A rapid frozen section is then performed for pathological examination. If the result is benign, the surgery is complete, and the incision is sutured. If the result is malignant, a unilateral lobectomy with central lymph node dissection in zone 6 is performed, followed by suturing. The surgery is then complete. Clinically, the surgery is usually performed through the neck or armpit. This invention provides a thyroid surgery retractor adjustment device that can simultaneously meet the practical needs of both types of surgery. In actual operation: 1. Secure the base 1 to the appropriate position on the bed with fixing bolts. After anesthetizing the patient, keep the patient's head tilted back to fully expose the neck, or raise the arm on the operated side diagonally upward to fully expose the armpit. 2. Medical staff rotate the adjustment handle 62, so that the far end of the adjustment handle 62 drives the lifting mechanism 2 to move back and forth in the horizontal direction along the base 1. Then rotate the horizontal adjustment rod 3, so that the horizontal adjustment rod 3 moves laterally at the upper end of the lifting mechanism 2, driving the hook assembly 44 at its end to move to the appropriate position. 3. Depending on the surgical incision of the patient, selectively adjust the angle at which the hook assembly 44 on one side (through the axillary incision) or both sides (through the cervical incision) is inserted into the incision. Rotate the adjusting component 52 to push or pull the mounting rod 51, causing the L-shaped adjusting cylinder 42 to rotate clockwise or counterclockwise. The tilt angle of the L-shaped adjusting cylinder changes, thereby allowing the hook assembly 44 at the end of the L-shaped adjusting cylinder to enter the surgical incision at a suitable angle. IV. After adjusting the angle of the hook assembly 44 appropriately, the patient undergoes thyroid surgery. Simultaneously, medical staff rotate the adjusting bolt 41, which moves the traction rope. During this movement, the traction rope generates friction with the second winding wheel 4433, causing the second winding wheel 4433 to rotate the sleeve shaft 4432. As the sleeve shaft 4432 rotates, it moves the two threaded rods 4431 at both ends in a direction away from each other, thus spreading the middle of the two deformable bent rods 4412 outwards. At this time, the deformable bent rods 441... The lower end of 2 and the bottom stop bar 4413 move upward, which reduces the overall height of the outer frame 441. During the process of the pulling rope 43 pulling upward, the end of the main traction head 431 passes around the bottom stop bar and pulls the compensation baffle 444 to rotate. According to the need of the expansion area of ​​the outer frame 441, the compensation baffle 444 is rotated to a suitable angle. When the compensation baffle 444 rotates from a horizontal state to an inclined state or even a vertical state, the compensation baffle 444 effectively compensates for the drawback of the height reduction caused by the expansion of the area of ​​the outer frame 441. 5. After adjusting the angle and opening area of ​​the retractor assembly 44 appropriately, the medical staff inserts the retractor assembly 44 into the surgical incision. The retractor assembly 44 on one side is used to open the surgical incision in the patient's armpit, or the retractor assembly 44 on both sides is used to pull the surgical incision in the patient's neck to both sides to perform surgical removal of the tumor. Finally, the surgical incision is sutured according to the routine clinical procedure.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A thyroid surgery retractor adjustment device, comprising a base (1) detachably connected to a bed, characterized in that, It further includes: A lifting mechanism (2), which is movably installed on the base (1); A lateral adjustment rod (3), which is arranged at the top of the lifting mechanism (2). A hook adjustment mechanism (4) is arranged at the end of the lateral adjustment rod (3). The hook adjustment mechanism (4) includes an adjustment bolt (41), an L-shaped adjustment cylinder (42), a pulling rope (43) and a hook assembly (44). Among them: The adjustment bolt (41) is connected to the lateral adjustment rod (3) through a mounting seat (45); The L-shaped adjustment cylinder (42) is arranged below the mounting seat (45); One end of the pulling rope (43) is connected to the adjustment bolt (41), and after passing through the L-shaped adjustment cylinder (42), the other end thereof is connected to the hook assembly (44). The hook assembly (44) is adjusted by pulling the pulling rope through the adjustment bolt (41).

2. The thyroid surgery retractor adjustment device according to claim 1, characterized in that, The hook assembly (44) includes: An outer peripheral frame (441), which is connected to the end of the L-shaped adjustment cylinder (42). A silica gel protective sleeve is sleeved on the outer peripheral frame (441); An inner support rod (442), which is arranged inside the L-shaped adjustment cylinder (42) and one end thereof extends to the middle of the outer peripheral frame (441). The pulling rope (43) is穿设于内部支撑杆(442)中; A撑开结构(443), which is perpendicularly connected to the inner support rod (442), and both ends of the撑开结构(443) are connected to the outer peripheral frame (441). The end of the traction rope bypasses the撑开结构(443) and is connected to the outer peripheral frame (441).

3. The thyroid surgery retractor adjustment device according to claim 2, characterized in that, The outer peripheral frame (441) includes: An outer shaping frame (4411), which is symmetrically arranged in a bent shape on both sides of the inner support rod (442); Deformable bent rods (4412), which are in a "factory" - shaped structure. There are two of them and they are respectively connected to the two outer shaping frames (4411) correspondingly; A bottom stop rod (4413), which is in a U-shaped structure. Both ends of the bottom stop rod (4413) are respectively connected to the two deformable bent rods (4412).

4. The thyroid surgery retractor adjustment device according to claim 3, characterized in that, The撑开结构(443) includes: Two threaded rods (4431), and the end of each threaded rod (4431) is respectively connected to the opposite side walls of the deformable bent rod (4412); A sleeve shaft (4432), which has threads in opposite directions inside. The sleeve shaft (4432) is sleeved on the two threaded rods (4431) and is in threaded cooperation with the two threaded rods (4431).

5. The thyroid surgery retractor adjustment device according to claim 3, characterized in that, A compensation baffle (444) is further arranged at the bottom of the outer peripheral frame (441). The end of the traction rope is separately arranged as a main traction head (431) and two lateral traction heads (432). The two lateral traction heads (432) are respectively connected to the lower ends of the corresponding deformable bent rods (4412). The main traction head (431) bypasses the bottom stop rod (4413) and is connected to the compensation baffle (444). The compensation baffle (444) rotates at an angle as the unfolded area of the outer peripheral frame (441) changes, and performs height compensation on the outer peripheral frame (441).

6. The thyroid surgery retractor adjustment device according to claim 5, characterized in that, Inside the bottom stop rod (4413) is provided with: A first winding wheel (7), which is movably installed in the bottom stop rod (4413). The main traction head (431) is wound around the first winding wheel (7); It should be noted that there seems to be some incorrect or unclear expressions in the original text, such as "穿设于内部支撑杆(442)中" and "撑开结构(443)", which are directly translated as they are in the context but may need to be further clarified in the original Chinese text for a more accurate translation. Two torsion springs (8) are provided and located at both ends of the first winding wheel (7). The end of the torsion spring (8) away from the first winding wheel (7) is fixedly connected to the bottom stop bar (4413).

7. The thyroid surgery retractor adjustment device according to claim 1, characterized in that, The end of the lateral adjustment rod (3) is also provided with an angle adjustment mechanism (5), including: Mounting rod (51) is fixedly connected to horizontal adjusting rod (3); The adjusting element (52) is threaded to the lower end of the mounting rod (51), and the end of the adjusting element (52) is connected to the outer wall of the L-shaped adjusting cylinder (42).

8. The thyroid surgery retractor adjustment device according to claim 1, characterized in that, The base (1) is also provided with a position adjustment mechanism (6), including: The upright plate (61) is fixedly installed on the base (1), and the upright plate (61) is provided with threaded holes; The adjusting handle (62) has a "Z" shaped structure. Its distal end is inserted into a threaded hole and threaded into the vertical plate (61). The distal end of the adjusting handle (62) is movably connected to the lifting mechanism (2).

Images