Drag hook device for thyroid endoscopic surgery

Abstract

The utility model provides a draw hook device for thyroid endoscopic surgery, which comprises an upper draw hook and a fixing frame, the upper draw hook comprises a draw hook arm and a sliding plate, the draw hook arm is of a Z-shaped structure, a through hole is arranged on a transverse plate at the upper end, the transverse plate at the lower end is a sliding sleeve, a window is arranged at the outer end of the top surface of the sliding sleeve, a pawl assembly is correspondingly arranged above the window, and the pawl assembly is arranged above the sliding sleeve. A through groove is formed in the bottom face of the sliding sleeve, the sliding plate is slidably arranged in the sliding sleeve and is of a hollow structure, a rack is arranged on the top face of the sliding plate, the pawl assembly movably abuts against the rack, a plurality of suction holes are formed in the bottom face of the sliding plate, and a suction connector is arranged at the outer end of the sliding plate. The fixing frame comprises a U-shaped support and a threaded rod, an elastic piece is fixed to the lower end of the threaded rod, and a hook is arranged at the lower end of the elastic piece. The drag hook device for the thyroid endoscope operation is simple in structure and convenient to operate, the depth of the sliding plate can be freely adjusted, and a doctor can conveniently and rapidly finish fine adjustment in all directions.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field especially, relate to a thyroid mirror operation with drag hook device. BACKGROUND

[0002] Endoscopic thyroid surgery is the main progress in the field of thyroid surgery in the past 20 years. With the update of endoscopic equipment, energy instruments and the improvement of surgical techniques, this technology is increasingly widely used. Endoscopic thyroid surgery realizes the minimization and beautification of thyroid surgery incision, meets the beauty needs of patients and reduces the psychological pressure of patients. At the same time, by using the magnification effect of endoscope and the fine operation under endoscope, important structures such as recurrent laryngeal nerve, superior laryngeal nerve and parathyroid gland can be better identified and protected, surgical complications can be reduced and the quality of life can be improved. According to whether CO2 inflation is used, the surgical method can be classified into inflation method and inflation-free method. According to the incision position, the main surgical methods at present include subclavian approach, chest and breast approach, axillary approach, transoral approach and double breast halo and double axillary approach (BABA), etc. Each surgical method has its advantages and disadvantages.

[0003] The inflation-free method mainly relies on the drag hook to assist in establishing the channel and exposing the visual field. Since the units currently carrying out the subclavian endoscopic surgery are relatively few, there is a significant lack of related instruments specifically for this surgery, especially instruments for assisting in establishing the channel and exposing the visual field, which to some extent increases the difficulty of the surgery, increases the operation time and the risk of complications. Therefore, it is a key problem to be solved to design and improve the subclavian endoscopic surgery instruments. The drag hooks used in the current surgery include upper drag hooks and side drag hooks. The upper drag hook is fixed on the operating table by a fixed frame, the position of the upper drag hook is adjusted left and right by adjusting the sliding block, and the drag hook is adjusted up and down by rotating the screw rod. However, when the doctor needs to make fine adjustments forward and backward or left and right, the drag hook needs to be removed by rotating the screw rod, and then fine adjustments left and right or forward and backward are made. This adjustment method is not convenient for the doctor to quickly complete the fine adjustment. Because of the different body sizes of each person, the depth length of the upper drag hook required is different, and different lengths of the upper drag hook need to be selected according to the needs of the surgery. The length of the upper drag hook cannot be freely adjusted according to the needs. At present, many drag hooks on the market need to be purchased in three types of long, medium and short, which increases the difficulty of the surgery and the cost of the surgical department. The existing side drag hook is manually pulled apart from the side by medical staff to increase the surgical exposure field. However, most of the existing side drag hook handles are integrally formed with the drag hook end, the handle and the drag hook end are the same size, which affects the surgical field of view of the doctor during surgery, and is not conducive to the implementation of the surgery. SUMMARY

[0004] The technical problem to be solved by this utility model is to provide a retractor device for thyroid endoscopic surgery that is simple in structure, easy to operate, has an adjustable sliding plate depth and an elastic component, which facilitates doctors to quickly complete fine adjustments in all directions.

[0005] This invention is achieved as follows: a retractor device for thyroid endoscopic surgery, comprising...

[0006] A pull hook includes a pull hook arm and a sliding plate. The pull hook arm has a "Z" shaped structure. The upper horizontal plate has a through hole, and the lower horizontal plate is a sliding sleeve. The outer end of the top surface of the sliding sleeve has a window. A pawl assembly is provided above the window. The bottom surface of the sliding sleeve has a through groove. The sliding plate slides inside the sliding sleeve. The sliding plate has a hollow structure. A rack is provided on the top surface. The rack corresponds to the position of the window. The pawl assembly is movably abutted against the rack. The bottom surface of the sliding plate has several suction holes that connect to the hollow structure inside the sliding plate. The suction holes correspond to the positions of the through groove. A suction connector is provided at the outer end of the sliding plate.

[0007] A fixed frame includes a U-shaped bracket and a threaded rod. A slider is slidably mounted on the U-shaped bracket. The threaded rod is longitudinally screwed onto the slider. An elastic element is fixed at the lower end of the threaded rod. A hook is provided at the lower end of the elastic element. The upper horizontal plate of the hook arm is hung on the hook through the through hole.

[0008] Furthermore, the elastic element is a spring.

[0009] Furthermore, the pawl assembly includes a pawl, a fixed seat, and a torsion spring. The fixed seat is disposed on the sliding sleeve, and the middle part of the pawl is movably disposed on the fixed seat via a fixed shaft. The torsion spring is sleeved on the fixed shaft so that the end of the pawl abuts against the rack.

[0010] Furthermore, an illumination device is provided at the inner end of the sliding plate to facilitate illumination of the surgical area during the operation.

[0011] Furthermore, the hook device also includes a side hook, which includes a U-shaped handle and two paddles. The two paddles are symmetrically arranged at both ends of the handle. The handle of the side hook is strip-shaped, and the paddles are fixed below both ends of the handle.

[0012] The advantages of this invention are as follows: By setting a sliding plate that slides within the sleeve of the hook arm, the depth of the sliding plate within the surgical area can be freely extended or retracted as needed; one hook can meet the needs of patients with different physical conditions, eliminating the need to change to different models; a pawl assembly can be used to fix the sliding plate; suction holes and suction connectors on the sliding plate facilitate the connection of a suction device to remove smoke; an elastic element on the threaded rod of the fixing frame allows medical staff to quickly perform fine-tuning of the upper hook during surgery without removing and reinstalling it; a side hook can be used to extend into the surgical area to pull tissue laterally, increasing the surgical exposure field. This invention provides a simple, easy-to-operate hook device for thyroid endoscopic surgery with a freely adjustable sliding plate depth and an elastic component, facilitating rapid fine-tuning in all directions by the surgeon. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a schematic diagram of the retractor device for thyroid endoscopic surgery according to the present invention.

[0015] Figure 2 This is a schematic diagram of the hook arm of this utility model.

[0016] Figure 3 This is a schematic diagram of the structure of the sliding plate of this utility model.

[0017] Figure 4 This utility model Figure 1 Schematic diagram of the structure at point A in the middle.

[0018] Figure 5 This is a schematic diagram of the bottom structure of the sliding sleeve and sliding plate of this utility model.

[0019] Figure 6 This is a schematic diagram of the side pull hook of this utility model.

[0020] Reference numerals in the attached figures: hook device 100, hook arm 11, sliding plate 12, rack 121, suction hole 122, through hole 13, sliding sleeve 14, window 141, through groove 142, pawl assembly 15, pawl 151, fixed seat 152, torsion spring 153, fixed shaft 154, suction connector 16, lighting device 17, fixed frame 2, U-shaped bracket 21, slider 211, threaded rod 22, elastic element 221, hook 222, side hook 3, handle 31, paddle 32. 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0022] like Figures 1 to 6 As shown, the present invention relates to a retractor device 100 for thyroid endoscopic surgery, comprising an upper retractor 1, a fixing frame 2, and a side retractor 3.

[0023] The upper pull hook 1 includes a pull hook arm 11 and a sliding plate 12. The pull hook arm 11 has a "Z"-shaped structure, with a through hole 13 on the upper horizontal plate and a sliding sleeve 14 on the lower horizontal plate. A window 141 is opened at the outer end of the top surface of the sliding sleeve 14, and a pawl assembly 15 is provided above the window 141. A through groove 142 is opened on the bottom surface of the sliding sleeve 14. The sliding plate 12 is slidably disposed in the sliding sleeve 14. The sliding plate 12 has a hollow structure and a rack 121 is provided on its top surface. The rack 121 corresponds to the position of the window 141. The pawl assembly 15... The sliding plate 12 is abutted against the rack 121. The bottom surface of the sliding plate 12 has a plurality of suction holes 122 that connect to the hollow structure inside the sliding plate 12. The suction holes 122 correspond to the positions of the through slots 142. When the sliding plate 12 slides in and out, the through slots 142 do not affect the suction of the suction holes 122 for the smoke. The outer end of the sliding plate 12 is provided with a suction connector 16 for connecting a suction device. The inner end of the sliding plate 12 is provided with a lighting device 17 for facilitating the illumination of the surgical area during the operation. The pawl assembly 15 includes a pawl 151, a fixed seat 152, and a torsion spring 153. The fixed seat 152 is disposed on the sliding sleeve 14. The middle part of the pawl 151 is movably disposed on the fixed seat 152 via a fixed shaft 154. The torsion spring 153 is sleeved on the fixed shaft 154 so that the end of the pawl 151 abuts against the rack 121. By providing the torsion spring 153, the pawl 151 can be moved by pressing.

[0024] The fixing frame 2 includes a U-shaped bracket 21 and a threaded rod 22. A slider 211 is slidably mounted on the U-shaped bracket 21. The threaded rod 22 is longitudinally screwed onto the slider 211. An elastic element 221 is fixed at the lower end of the threaded rod 22. Preferably, the elastic element 221 is a spring. A hook 222 is provided at the lower end of the elastic element 221. The upper horizontal plate of the hook arm 11 is hung on the hook 222 through the through hole 13.

[0025] The side pull hook 3 includes a U-shaped handle 31 and two paddles 32. The two paddles 32 are symmetrically arranged at both ends of the handle 31. The handle 31 of the side pull hook 3 is thin and strip-shaped. The paddles 32 are fixed below both ends of the handle 31. The thin and strip-shaped handle can reduce the impact of the handle 31 on the field of vision of the surgical area. The paddles 31 are provided at both ends of the handle 31, which can be pulled to the left or right as needed.

[0026] Working principle: The fixation frame 2 is fixed across both sides of the operating table, corresponding to the area above the patient's neck. The upper horizontal plate of the hook arm 11 is then fixed by hanging it on the hook 222 through the through hole 13. The suction device is then connected to the suction connector 16 to remove smoke from the surgical area. By pressing the pawl 151, the end of the pawl 151 is disengaged from the rack 121. The depth of the sliding plate 12 entering the surgical area is controlled by manually sliding it inwards and outwards. After setting the position of the sliding plate 12, releasing the pawl 151 allows the end of the pawl 151 to abut against the rack 121, fixing the position of the sliding plate 12. By adjusting the position of the slider 211 on the fixation frame 2, the... The upper retractor 1 is located directly above the patient's surgical area, and the height of the retractor arm 11 can be adjusted up and down by spiraling the threaded rod 22 to retract the thyroid gland, ensuring adequate exposure of the deep surgical area and facilitating surgery. When fine adjustment of the upper retractor 1 is required, simply pull the retractor arm 11 downwards manually to stretch the elastic element 221 for fine adjustment. After adjustment, release the hand, and the elastic element 221 will contract to complete the traction. It is simple and convenient. The lighting device 17 at the inner end of the sliding plate 12 can further illuminate the inside of the surgical area during surgery. Finally, the pry bar 32 of the side retractor 3 is inserted into the surgical area to push the internal gland to the side, expanding the field of vision and exposure.

[0027] This invention provides a simple, easy-to-operate retractor device for thyroid endoscopic surgery, eliminating the need for manual traction and reducing labor costs. A sliding plate 12, slidably positioned within the sleeve 14 of the retractor arm 11, allows for flexible adjustment of its depth within the surgical area. A pawl assembly 15 secures the sliding plate 12. Suction holes 122 and a suction connector 16 on the sliding plate 12 facilitate connection to a suction device to draw away smoke. An elastic element 221 on the threaded rod 22 of the fixation frame 2 allows for quick and easy adjustments to the upper retractor 1. A side retractor 3 can be inserted into the surgical area to pull tissue laterally, increasing the surgical field of view. This invention provides a simple, easy-to-operate retractor device for thyroid endoscopic surgery with an adjustable sliding plate depth. The elastic element allows surgeons to quickly adjust the depth and lateral position without removing the retractor.

[0028] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A retractor device for thyroid endoscopic surgery, characterized in that: include A pull hook includes a pull hook arm and a sliding plate. The pull hook arm has a "Z" shaped structure. The upper horizontal plate has a through hole, and the lower horizontal plate is a sliding sleeve. The outer end of the top surface of the sliding sleeve has a window. A pawl assembly is provided above the window. The bottom surface of the sliding sleeve has a through groove. The sliding plate slides inside the sliding sleeve. The sliding plate has a hollow structure. A rack is provided on the top surface. The rack corresponds to the window position. The pawl assembly is movably abutted against the rack. The bottom surface of the sliding plate has several suction holes that connect to the hollow structure inside the sliding plate. The suction holes correspond to the through groove position. A suction connector is provided at the outer end of the sliding plate. A fixed frame includes a U-shaped bracket and a threaded rod. A slider is slidably mounted on the U-shaped bracket. The threaded rod is longitudinally screwed onto the slider. An elastic element is fixed at the lower end of the threaded rod. A hook is provided at the lower end of the elastic element. The upper horizontal plate of the hook arm is hung on the hook through the through hole.

2. The retractor device for thyroid endoscopic surgery according to claim 1, characterized in that: The elastic element is a spring.

3. The retractor device for thyroid endoscopic surgery according to claim 1, characterized in that: The pawl assembly includes a pawl, a fixed base, and a torsion spring. The fixed base is mounted on a sliding sleeve. The middle part of the pawl is movably mounted on the fixed base via a fixed shaft. The torsion spring is sleeved on the fixed shaft so that the end of the pawl abuts against the rack.

4. The retractor device for thyroid endoscopic surgery according to claim 1, characterized in that: A lighting device is provided at the inner end of the sliding plate.

5. The retractor device for thyroid endoscopic surgery according to claim 1, characterized in that: The hook device also includes a side hook, a U-shaped handle, and two paddles, with the two paddles symmetrically arranged at both ends of the handle; the handle of the side hook is strip-shaped, and the paddles are fixed below both ends of the handle.

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