Retractor for endoscopic thyroid surgery through armpit approach

Abstract

The utility model belongs to the field of medical instruments, and particularly relates to an armpit approach endoscopic thyroid surgery retractor which comprises a supporting column, a guide rod is fixedly installed at the top end of the supporting column, scales are arranged at the front end of the guide rod, a position adjusting assembly is arranged on the surface of the guide rod, and the position adjusting assembly is connected with the supporting column. A limiting assembly is arranged at the bottom end of the position adjusting assembly, a drag hook body is arranged at the bottom of the limiting assembly, a clamping groove is formed in the top end of the drag hook body, and a rotating rod is rotationally connected into the clamping groove; in the sliding process of the sliding block, the rotating roller rolls on the surface of the guide rod, so that the sliding block stably and smoothly slides, the phenomenon of blocking in the sliding process of the sliding block is avoided, and the sliding block adjusting process is stable and accurate; and after adjustment is completed, the clamping blocks are clamped in the corresponding clamping grooves, the clamping blocks are further limited through the rotating rods, and therefore the drag hook body is kept stable in the using process.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, specifically a retractor for transaxillary endoscopic thyroid surgery. Background Technology

[0002] In thyroid surgery, special retractors are needed to pull tissues in order to better expose the surgical field. The retractors for transaxillary endoscopic thyroid surgery are designed to meet the surgical needs of the axillary approach. Through their reasonable shape and structure, they help doctors to better pull tissues around the thyroid gland during surgery in order to perform surgical operations.

[0003] Currently, during the process of retracting tissue using surgical retractors, the position of the retractor needs to be adjusted. After adjustment, it is usually limited by the friction between components. However, during the operation, the retractor may swing. In this case, the unstable position of the retractor may lead to insufficient exposure of the surgical field, affecting the doctor's operation and increasing the difficulty and time of the operation. Therefore, a retractor for endoscopic thyroid surgery via the axillary approach is proposed to address the above problems. Utility Model Content

[0004] To overcome the shortcomings of existing technologies and avoid the problem of retractor wobbling affecting surgical procedures, this utility model proposes a retractor for transaxillary endoscopic thyroid surgery.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a retractor for endoscopic thyroid surgery via the axillary approach, including a support column, a guide rod fixedly installed at the top of the support column, a scale provided at the front end of the guide rod, a position adjustment component provided on the surface of the guide rod, a limiting component provided at the bottom end of the position adjustment component, a retractor body provided at the bottom of the limiting component, a slot provided at the top of the retractor body, and a rotating rod rotatably connected inside the slot;

[0006] The position adjustment assembly includes a slider slidably connected to the surface of a guide rod. A threaded rod is internally threaded to the top of the slider, and a connecting plate is rotatably connected to the bottom of the threaded rod. An abutment plate is fixedly installed at the bottom end of the connecting plate, and a friction strip is fixedly installed on the bottom wall of the abutment plate. A rotating roller is rotatably connected inside the slider, and an annular groove is formed in the middle of the rotating roller. Support rods are fixedly installed on both the left and right sides of the bottom end of the slider, and a bottom groove is formed at the bottom end of the guide rod.

[0007] Preferably, the connecting plate is slidably connected inside the slider, and the friction strip and the annular groove are adapted to each other and make contact. The rotatable threaded rod drives the abutment plate to move upward. At this time, the abutment plate drives the friction strip to abut against the surface of the annular groove. At this time, the friction between the friction strip and the annular groove limits the rotation of the roller.

[0008] Preferably, the rotating roller rolls on the top of the guide rod, and the top of the support rod slides inside the bottom groove. When the slider is pushed to move, the slider drives the rotating roller to roll on the surface of the guide rod, so that the slider slides smoothly on the surface of the guide rod.

[0009] Preferably, the limiting component includes a connecting hook fixedly installed at the bottom of the position adjusting component, a telescopic rod rotatably connected to the left side of the top of the connecting hook, a limiting groove being opened at the top of the telescopic rod, an insert rod being inserted into the top of the telescopic rod, and a locking block being rotatably connected to the bottom of the telescopic rod.

[0010] Preferably, the slots are distributed at equal intervals on the top of the hook body, and the locking blocks and slots are matched and engaged, so that the locking blocks are engaged inside the corresponding slots, thereby stably limiting the hook body.

[0011] Preferably, the insertion rod and the limiting groove are fitted and engaged, the locking block and the rotating rod are fitted and contacted, and the insertion rod is inserted into the inside of the limiting groove, thereby limiting the length of the telescopic rod.

[0012] The advantages of this utility model are:

[0013] This invention utilizes the sliding slider, where a rotating roller rolls on the surface of a guide rod, ensuring a stable and smooth slider movement and preventing jamming. This results in stable and accurate slider adjustment. After adjustment, a locking block engages in the corresponding slot, and the rotating rod further restricts the locking block, ensuring the hook body remains stable during use. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic cross-sectional view of the slider structure of this utility model;

[0017] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0018] Figure 4 For the present utility model Figure 1Enlarged structural diagram at point B;

[0019] Figure 5 This is a cross-sectional structural diagram of the card slot of this utility model.

[0020] In the diagram: 1. Support column; 21. Guide rod; 22. Scale; 3. Position adjustment component; 31. Slider; 32. Threaded rod; 33. Connecting plate; 34. Abutment plate; 35. Friction strip; 36. Rotating roller; 37. Annular groove; 38. Support rod; 39. Bottom groove; 4. Limiting component; 41. Connecting hook; 42. Telescopic rod; 43. Limiting groove; 44. Insert rod; 45. Locking block; 5. Hook body; 51. Slot; 52. Rotating rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] The following is in conjunction with the appendix Figure 1 —5 provides further detailed information about this application.

[0023] This application discloses a retractor for transaxillary endoscopic thyroid surgery. (See also...) Figure 1 , Figure 4 and Figure 5 A retractor for laparoscopic thyroid surgery via the axillary approach includes a support column 1, a guide rod 21 fixedly installed at the top of the support column 1, a scale 22 provided at the front end of the guide rod 21, a position adjustment component 3 provided on the surface of the guide rod 21, a limiting component 4 provided at the bottom end of the position adjustment component 3, a retractor body 5 provided at the bottom of the limiting component 4, a slot 51 provided at the top of the retractor body 5, and a rotating rod 52 rotatably connected inside the slot 51.

[0024] Reference Figure 2 - Figure 3The position adjustment assembly 3 includes a slider 31 slidably connected to the surface of the guide rod 21. A threaded rod 32 is threadedly connected to the top of the slider 31. A connecting plate 33 is rotatably connected to the bottom of the threaded rod 32. An abutment plate 34 is fixedly installed at the bottom of the connecting plate 33. A friction strip 35 is fixedly installed at the bottom of the abutment plate 34. A rotating roller 36 is rotatably connected inside the slider 31. An annular groove 37 is formed in the middle of the rotating roller 36. The connecting plate 33 is slidably connected inside the slider 31. The friction strip 35 and the annular groove 37 are in contact and adapted to each other. The rotatable threaded rod 32 drives the abutment plate 34 upward. When the slider moves, the abutment plate 34 drives the friction strip 35 to abut against the surface of the annular groove 37. At this time, the friction between the friction strip 35 and the annular groove 37 limits the rotation of the roller 36. Support rods 38 are fixedly installed on both the left and right sides of the bottom end of the slider 31. The bottom end of the guide rod 21 has a bottom groove 39. The roller 36 rolls on the top of the guide rod 21, and the top of the support rod 38 slides inside the bottom groove 39. When the slider 31 is pushed to move, the slider 31 drives the roller 36 to roll on the surface of the guide rod 21, so that the slider 31 slides smoothly on the surface of the guide rod 21.

[0025] Reference Figure 1 and Figure 4 The limiting component 4 includes a connecting hook 41 fixedly installed at the bottom of the position adjusting component 3. A telescopic rod 42 is rotatably connected to the top left side of the connecting hook 41. A limiting groove 43 is opened at the top of the telescopic rod 42. A plug rod 44 is inserted into the top of the telescopic rod 42. A locking block 45 is rotatably connected to the bottom of the telescopic rod 42. Multiple locking grooves 51 are distributed at equal intervals on the top of the hook body 5. The locking block 45 and the locking groove 51 are adapted to engage. The locking block 45 is engaged in the corresponding locking groove 51, thereby stably limiting the hook body 5. The plug rod 44 is adapted to engage with the limiting groove 43. The locking block 45 and the rotating rod 52 are adapted to contact each other. The plug rod 44 is inserted into the limiting groove 43, thereby limiting the length of the telescopic rod 42.

[0026] Working principle: During use, medical staff first push the slider 31 to slide on the surface of the guide rod 21. By observing the position of the scale 22, the position of the slider 31 is precisely adjusted. During the sliding of the slider 31, the internal roller 36 rolls on the top of the guide rod 21, making the movement of the slider 31 smoother. After the position of the slider 31 is adjusted, the threaded rod 32 can be rotated. The threaded rod 32 drives the connecting plate 33 to move upward. The connecting plate 33 then drives the abutment plate 34 and the friction strip 35 to move upward, so that the friction strip 35 abuts against the surface of the annular groove 37. At this time, the friction between the friction strip 35 and the annular groove 37 limits the roller 36, preventing the roller 36 from rolling on the top of the guide rod 21 and thus preventing the slider 31 from moving.

[0027] Next, the medical staff adjusts the angle of the retractor body 5 so that the bottom of the retractor body 5 pulls the tissue. Then, the operator inserts the locking block 45 into the corresponding locking slot 51. At this time, the locking block 45 pushes the bottom of the rotating rod 52, causing the rotating rod 52 to rotate and its top to abut against the top of the locking block 45, so that the locking block 45 is stably locked inside the locking slot 51. Then, the operator pushes the insertion rod 44, which is inserted into the limiting slot 43, thus limiting the length of the telescopic rod 42. At this time, the telescopic rod 42 and the locking block 45 support the retractor body 5 to keep it stable.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A retractor for laparoscopic thyroid surgery via the axillary approach, characterized in that: Includes a support column (1), a guide rod (21) is fixedly installed at the top of the support column (1), a scale (22) is provided at the front end of the guide rod (21), a position adjustment component (3) is provided on the surface of the guide rod (21), a limiting component (4) is provided at the bottom end of the position adjustment component (3), a hook body (5) is provided at the bottom of the limiting component (4), a slot (51) is provided at the top of the hook body (5), and a rotating rod (52) is rotatably connected inside the slot (51); The position adjustment assembly (3) includes a slider (31) slidably connected to the surface of the guide rod (21). The top of the slider (31) is internally threaded with a threaded rod (32). The bottom of the threaded rod (32) is rotatably connected with a connecting plate (33). The bottom end of the connecting plate (33) is fixedly installed with an abutment plate (34). The bottom wall of the abutment plate (34) is fixedly installed with a friction strip (35). The inside of the slider (31) is rotatably connected with a rotating roller (36). The middle part of the rotating roller (36) is provided with an annular groove (37). Support rods (38) are fixedly installed on both the left and right sides of the bottom end of the slider (31). The bottom end of the guide rod (21) is provided with a bottom groove (39).

2. The retractor for transaxillary endoscopic thyroid surgery according to claim 1, characterized in that: The connecting plate (33) is slidably connected inside the slider (31), and the friction strip (35) and the annular groove (37) are adapted to contact each other.

3. The retractor for transaxillary endoscopic thyroid surgery according to claim 1, characterized in that: The roller (36) rolls on top of the guide rod (21), and the top of the support rod (38) slides inside the bottom groove (39).

4. The retractor for transaxillary endoscopic thyroid surgery according to claim 1, characterized in that: The limiting component (4) includes a connecting hook (41) fixedly installed at the bottom of the position adjusting component (3). A telescopic rod (42) is rotatably connected to the left side of the top of the connecting hook (41). A limiting groove (43) is opened at the top of the telescopic rod (42). A plug rod (44) is inserted into the top of the telescopic rod (42). A locking block (45) is rotatably connected to the bottom of the telescopic rod (42).

5. A retractor for transaxillary endoscopic thyroid surgery according to claim 4, characterized in that: The slots (51) are multiple and evenly spaced on the top of the hook body (5), and the locking blocks (45) and the slots (51) are matched and engaged.

6. A retractor for laparoscopic thyroid surgery via an axillary approach according to claim 4, characterized in that: The insertion rod (44) and the limiting groove (43) are adapted to be engaged, and the locking block (45) and the rotating rod (52) are adapted to be in contact.

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