Dilator for anorectal surgical operation

Abstract

The invention discloses a dilator for anorectal surgery, and belongs to the technical field of medical instruments, the dilator comprises two dilation plates, the opposite sides of the two dilation plates are integrally provided with check blocks, and an adjusting box is arranged below the two dilation plates; after the two dilation plates of the dilator dilate to proper positions, a doctor can press an arranged pressing plate to enable an inserting rod to be inserted into an inserting hole of a rotating disc, so that rotation of the rotating disc can be effectively limited, rotation of a two-way screw is prevented, and the situation that the dilation plates are loosened due to accidental factors is avoided; the problem that an existing anorectal dilator is difficult to fix better when being inserted into the anus for dilation is solved, it is ensured that the dilator can be stably maintained in the set dilation state in the whole operation process, a reliable and stable operation view is provided for operation operation, and it is ensured that the operation is conducted smoothly.

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment, and in particular to a dilator used for anorectal surgery. Background Art

[0002] Anorectal surgery mainly involves the treatment of lesions in the rectum, anal canal and other parts. The anatomical structure of these parts is relatively complex, and the surgical field of view is narrow and deep. For example, during hemorrhoidectomy and anal fistula surgery, doctors need to clearly observe the lesion tissue and its surroundings. Due to the particularity of the anorectal area, its internal space is relatively closed, which is not conducive to surgical operations in a natural state. Therefore, dilators are generally used during surgery or examination;

[0003] When the existing anorectal dilator is inserted into the anus for dilation, it is generally not possible to obtain better fixation, and the anorectal dilator is prone to loosening, thereby affecting the operation and reducing the efficiency of the operation. Summary of the invention

[0004] Purpose of the invention: The purpose of the present invention is to provide a solution to the problem that the existing anorectal dilator cannot be better fixed when inserted into the anus for dilation.

[0005] Technical solution: A dilator for anorectal surgery, comprising two dilating plates, the number of which is two, the back sides of the two dilating plates are integrally formed with stoppers, and an adjustment box is arranged below the two dilating plates;

[0006] A through-type adjustment groove is provided on the inner upper surface of the adjustment box, a rotating disk is provided on the front surface of the adjustment box, an operating handle is fixedly connected to the center of the front surface of the rotating disk, a bidirectional screw is fixedly connected to the center of the rear surface of the rotating disk, the rear end of the bidirectional screw is rotatably connected to the inner rear surface of the adjustment box via a rotating shaft, sliding blocks are symmetrically threaded on the outer side walls of the bidirectional screw, the upper surfaces of the two sliding blocks are both penetrated by the adjusting grooves, and are both fixedly connected to connecting plates, and the upper surfaces of the two connecting plates are respectively fixedly connected to the lower surfaces of the two stoppers.

[0007] Furthermore, a handle bar is fixedly connected to the lower surface of the adjustment box, and an anti-slip sleeve is sleeved below the outer side wall of the handle bar.

[0008] Furthermore, the inner front surface and the inner rear surface of the adjustment groove are fixedly connected with a guide rod, and the outer side walls of the guide rod are slidably connected to the two sliding blocks.

[0009] Furthermore, a locking box is fixedly connected to the front of the upper surface of the regulating box, a plurality of plug holes are integrally formed on the outer side wall of the rotating disk, an extrusion chamber is integrally formed inside the locking box, a piston plate 1 is slidably connected inside the extrusion chamber, a connecting rod is fixedly connected at the center of the rear surface of the piston plate 1, the rear end of the connecting rod extends to the rear of the locking box and is fixedly connected to a pressing plate, a sliding chamber is integrally formed inside the locking box and located in front of the extrusion chamber, an air delivery groove is provided between the interior of the sliding chamber and the interior of the extrusion chamber, a piston plate 2 is slidably connected inside the sliding chamber, a plug rod is fixedly connected to the lower surface of the piston plate 2, and the bottom end of the plug rod extends to the bottom of the locking box.

[0010] Furthermore, the outer side wall of the operating handle is integrally formed with anti-slip grooves.

[0011] Furthermore, the front surface and the rear surface of the piston plate 1 are both fixedly connected with a magnetic strip 1, and the inner front surface and the inner rear surface of the extrusion chamber are both fixedly connected with a magnetic strip 2.

[0012] Furthermore, the left sides of the two stoppers are movably connected with a rotating plate, and the opposite sides of the two rotating plates are provided with fill lights.

[0013] Beneficial effects: After the two expansion plates of the expander are expanded to the appropriate position, the doctor can press the set pressing plate to insert the plug rod into the plug hole of the rotating disc, which can effectively limit the rotation of the rotating disc, thereby preventing the rotation of the bidirectional screw, avoiding the loosening of the expansion plate due to unexpected factors, and solving the problem that the existing anorectal expander is difficult to be better fixed when inserted into the anus for expansion, ensuring that the expander can stably maintain the set expansion state during the entire operation, providing a reliable and stable surgical field of view for the surgical operation, and ensuring the smooth progress of the operation;

[0014] When the rotating disc and the bidirectional screw are driven to rotate by the operating handle, the two sliding blocks will make linear movements toward or away from each other along the bidirectional screw. Due to the thread characteristics of the bidirectional screw, the movement of the two sliding blocks can be accurate and synchronous, so that the two expansion plates connected to the sliding blocks through the connecting plate can be expanded or retracted smoothly and symmetrically, allowing the doctor to accurately control the expansion degree according to the actual needs of the operation. At the same time, the guide rod is set to make the expansion movement of the two expansion plates more stable and accurate, which helps to improve the accuracy of the surgical operation and reduce unnecessary damage to the patient's anorectal tissue caused by unstable expansion.

[0015] The two fill lights can provide flexible and effective lighting supplement for the surgical field. The two rotating plates can adjust the irradiation direction of the two fill lights according to the actual surgical needs, so that the light emitted by the two fill lights can illuminate some darker detail areas of the surgical site, helping doctors to more clearly observe the diseased tissues, blood vessels, nerves and other structures inside the anorectal area, facilitating more precise and accurate surgical operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a side view structural schematic diagram of the cross section of the adjustment box and the clamping box of the present invention;

[0018] Figure 3 is a schematic side view of the expansion plate of the present invention;

[0019] Figure 4 The present invention Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0020] Figure 5 The present invention Figure 2 Schematic diagram of the enlarged structure at point B in the middle.

[0021] In the figure: 1. expansion plate; 2. block; 3. adjustment box; 4. adjustment slot; 5. rotating disk; 6. operating handle; 7. bidirectional screw; 8. sliding block; 9. connecting plate; 10. hand-held rod; 11. anti-slip sleeve; 12. guide rod; 13. engaging box; 14. plug-in hole; 15. extrusion cavity; 16. connecting rod; 17. pressing plate; 18. sliding cavity; 19. gas delivery groove; 20. piston plate one; 21. piston plate two; 22. plug-in rod; 23. anti-slip pattern; 24. magnetic strip one; 25. magnetic strip two; 26. rotating plate; 27. fill light. DETAILED DESCRIPTION

[0022] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] Example 1

[0024] like Figure 1 As shown, a handle bar 10 is fixedly connected to the lower surface of the regulating box 3, and an anti-slip sleeve 11 is sleeved below the outer side wall of the handle bar 10;

[0025] The hand-held rod 10 provides a convenient position for the doctor to hold and manipulate the expander during the operation, preventing the expander from shaking during the operation. At the same time, the anti-slip sleeve 11 can increase the friction between the hand-held rod 10 and the doctor's hand, thereby improving the safety of the operation.

[0026] like Figure 1 and Figure 2 As shown, a dilator for anorectal surgery is provided, comprising a dilating plate 1, the number of the dilating plates 1 is two, the opposite sides of the two dilating plates 1 are integrally formed with a stopper 2, an adjustment box 3 is arranged below the two dilating plates 1, the inner upper surface of the adjustment box 3 is provided with a through-type adjustment slot 4, a rotating disc 5 is arranged on the front surface of the adjustment box 3, an operating handle 6 is fixedly connected at the center of the front surface of the rotating disc 5, a bidirectional screw 7 is fixedly connected at the center of the rear surface of the rotating disc 5, the rear end of the bidirectional screw 7 is rotatably connected to the inner rear surface of the adjustment box 3 through a rotating shaft, the outer side wall of the bidirectional screw 7 is symmetrically threadedly connected with a sliding block 8, the upper surfaces of the two sliding blocks 8 are both penetrated with multiple adjustment slots 4, and are both fixedly connected with a connecting plate 9, and the upper surfaces of the two connecting plates 9 are respectively fixedly connected to the lower surfaces of the two stoppers 2;

[0027] First, the medical staff strictly disinfects the dilator to ensure that it meets the requirements of aseptic surgery. Then, the two dilating plates 1 are slowly and gently inserted into the patient's anorectal area through the provided hand-held rod 10 until the two dilating plates 1 reach a suitable depth position. Then, the rotating disc 5 is controlled to rotate by holding the provided operating handle 6. The rotating disc 5 causes the two sliding blocks 8 to slide back to back through the provided bidirectional screw 7, so that the two connecting plates 9 move back to back together through the movement of the two sliding blocks 8, and the two dilating plates 1 can be gradually expanded to both sides through the two connecting plates 9. The doctor accurately controls the operating handle 6 to achieve accurate adjustment of the expansion degree of the two dilating plates 1 according to the requirements of the surgical field of view and the actual anatomical structure and condition of the patient, so that the surgical site can be fully exposed for subsequent surgical operations. When the operation is completed, the doctor slowly rotates the operating handle 6 in the opposite direction to gradually close the two dilating plates 1, and then carefully removes the dilator from the patient's anorectum. Finally, the dilator is cleaned, disinfected and properly stored for subsequent use.

[0028] like Figure 4 As shown, the outer side wall of the operating handle 6 is integrally formed with anti-slip grooves 23;

[0029] The anti-slip grooves 23 can effectively prevent the operating handle 6 from accidentally slipping out of the doctor's hand, thereby ensuring the continuity and safety of the surgical operation.

[0030] like Figure 2As shown, the inner front surface and the inner rear surface of the adjustment slot 4 are fixedly connected with a guide rod 12, and the outer side walls of the guide rod 12 are slidably connected with the two sliding blocks 8;

[0031] The sliding cooperation between the guide rod 12 and the two sliding blocks 8 ensures that the two expansion plates 1 can be opened or closed symmetrically and smoothly to both sides, so that the expansion process of the surgical site is uniform and stable, providing doctors with a stable and reliable surgical field of view.

[0032] like Figure 2 and Figure 5 As shown, a snap-fit ​​box 13 is fixedly connected to the front of the upper surface of the regulating box 3, a plurality of plug holes 14 are integrally formed on the outer side wall of the rotating disk 5, an extrusion chamber 15 is integrally formed inside the snap-fit ​​box 13, a piston plate 20 is slidably connected inside the extrusion chamber 15, a connecting rod 16 is fixedly connected at the center of the rear surface of the piston plate 20, the rear end of the connecting rod 16 extends to the rear of the snap-fit ​​box 13, and a pressing plate 17 is fixedly connected, a sliding chamber 18 is integrally formed inside the snap-fit ​​box 13 and located in front of the extrusion chamber 15, an air delivery groove 19 is provided between the inside of the sliding chamber 18 and the inside of the extrusion chamber 15, a piston plate 21 is slidably connected inside the sliding chamber 18, a plug rod 22 is fixedly connected to the lower surface of the piston plate 21, and the bottom end of the plug rod 22 extends to the bottom of the snap-fit ​​box 13;

[0033] When the two expansion plates 1 are expanded to a certain extent, the doctor drives the connecting rod 16 to slide by pressing the set pressing plate 17. The sliding of the connecting rod 16 can drive the piston plate 1 20 to slide into the inside of the extrusion chamber 15, so that the airflow inside the extrusion chamber 15 is transported to the inside of the sliding chamber 18 through the set air delivery groove 19, so that the piston plate 21 slides downward inside the sliding chamber 18, so that the plug-in rod 22 moves downward until the plug-in rod 22 is plugged into the inside of the plug-in hole 14, thereby achieving fixed limitation of the rotating disc 5, thereby effectively preventing the two expansion plates 1 from loosening during the operation, ensuring the stability of the expander during the operation, and allowing the doctor to concentrate on the operation. When the operation is over, the doctor pulls the pressing plate 17 outward to release the lock on the rotating disc 5.

[0034] like Figure 5 As shown, the front surface and the rear surface of the piston plate 1 20 are both fixedly connected with a magnetic strip 1 24, and the inner front surface and the inner rear surface of the extrusion cavity 15 are both fixedly connected with a magnetic strip 2 25;

[0035] By setting two magnetic strips 1 24 and two magnetic strips 25, the piston plate 1 20 can be fixed at the front and rear of the extrusion chamber 15, so that the doctor can easily control the extension of the plug rod 22, and prevent the expansion plate 1 from loosening without complicated operations, thereby further ensuring the safety of the operation.

[0036] like Figure 3 As shown, the left sides of the two stoppers 2 are movably connected with a rotating plate 26, and the opposite sides of the two rotating plates 26 are provided with fill lights 27;

[0037] Due to the special anatomical structure of the anorectal area, the surgical field of view is relatively deep and narrow. Even under the illumination of a surgical shadowless lamp, there may still be some corners and details that are difficult to fully cover with light. The set fill light 27 can emit bright and uniform light to ensure that the surgical site can be clearly illuminated, helping doctors to more accurately identify key structures such as diseased tissues, blood vessels, and nerves, thereby improving the accuracy and safety of surgical operations. At the same time, the two fill lights 27 can easily adjust their illumination directions through the two rotating plates 26, further improving the convenience and visualization of surgical operations.

[0038] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A dilator for anorectal surgery, comprising a dilator plate (1), characterized in that: There are two expansion plates (1), and the opposite sides of the two expansion plates (1) are integrally formed with stoppers (2), and an adjustment box (3) is arranged below the two expansion plates (1); The inner upper surface of the adjustment box (3) is provided with a through adjustment groove (4); the front surface of the adjustment box (3) is provided with a rotating disk (5); the center of the front surface of the rotating disk (5) is fixedly connected with an operating handle (6); the center of the rear surface of the rotating disk (5) is fixedly connected with a bidirectional screw (7); the rear end of the bidirectional screw (7) is rotationally connected to the inner rear surface of the adjustment box (3) via a rotating shaft; the outer side wall of the bidirectional screw (7) is symmetrically threadedly connected with a sliding block (8); the upper surfaces of the two sliding blocks (8) are both penetrated by the adjustment grooves (4) and are both fixedly connected with a connecting plate (9); the upper surfaces of the two connecting plates (9) are respectively fixedly connected to the lower surfaces of the two stoppers (2).

2. A dilator for anorectal surgery according to claim 1, characterized in that: A hand-held rod (10) is fixedly connected to the lower surface of the regulating box (3), and an anti-slip sleeve (11) is sleeved below the outer side wall of the hand-held rod (10).

3. A dilator for anorectal surgery according to claim 1, characterized in that: The inner front surface and the inner rear surface of the adjustment groove (4) are fixedly connected to a guide rod (12), and the outer side walls of the guide rod (12) are slidably connected to the two sliding blocks (8).

4. A dilator for anorectal surgery according to claim 1, characterized in that: A snap-fit ​​box (13) is fixedly connected to the front of the upper surface of the regulating box (3); a plurality of plug holes (14) are integrally formed on the outer wall of the rotating disc (5); an extrusion chamber (15) is integrally formed inside the snap-fit ​​box (13); a piston plate (20) is slidably connected inside the extrusion chamber (15); a connecting rod (16) is fixedly connected to the center of the rear surface of the piston plate (20); the rear end of the connecting rod (16) extends to the rear of the snap-fit ​​box (13) and is fixedly connected to the piston plate (20). A pressing plate (17) is connected, a sliding chamber (18) is integrally formed inside the locking box (13) and in front of the extrusion chamber (15), an air delivery groove (19) is provided between the inside of the sliding chamber (18) and the inside of the extrusion chamber (15), a piston plate 2 (21) is slidably connected inside the sliding chamber (18), a plug rod (22) is fixedly connected to the lower surface of the piston plate 2 (21), and the bottom end of the plug rod (22) extends to the bottom of the locking box (13).

5. The dilator for anorectal surgery according to claim 1, characterized in that: The outer side wall of the operating handle (6) is integrally formed with anti-slip grooves (23).

6. A dilator for anorectal surgery according to claim 4, characterized in that: The front surface and the rear surface of the piston plate 1 (20) are both fixedly connected with a magnetic strip 1 (24), and the inner front surface and the inner rear surface of the extrusion chamber (15) are both fixedly connected with a magnetic strip 2 (25).

7. The dilator for anorectal surgery according to claim 1, characterized in that: The left sides of the two stoppers (2) are movably connected with a rotating plate (26), and the opposite sides of the two rotating plates (26) are provided with a fill light (27).

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