Universal anterior cervical minimally invasive distraction channel system

Abstract

The utility model relates to the technical field of surgical auxiliary tools, in particular to a universal anterior cervical minimally invasive distraction channel system which comprises a rack, an adjusting frame is arranged on the rack, an adjusting shaft and a drag hook limiting piece are arranged on the adjusting frame, a gear is arranged between the adjusting shaft and the rack, and a hook is arranged on the gear. The rack and the adjusting frame are both provided with supporting arms, the rack is provided with an external connection mechanism, the supporting arms are provided with drag hook arms, pin shafts are arranged between the drag hook arms and the supporting arms, the drag hook arms are provided with sleeves, and assembling mechanisms are arranged between the sleeves and the drag hook arms. According to the structure, the distance between the supporting arms is adjusted by pressing the drag hook limiting piece and rotating the adjusting shaft, the sleeve distance is rapidly and accurately adjusted according to the operation requirement, the adaptability in the operation is improved, the definition of the operation view and the operation accuracy are improved accordingly, stable positioning of the sleeve in the operation process is ensured through the universal ball head, and the operation efficiency is improved. And efficient operation is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of surgical auxiliary tools, in particular to a universal minimally invasive expandable channel system for anterior cervical approach. Background Art

[0002] As is well known, in the field of minimally invasive surgery, traditional surgical auxiliary tools often have deficiencies in terms of flexibility, precise regulation, and rapid assembly. Especially when performing surgeries in areas with complex anatomical structures, the requirements for the operating space are more stringent. Traditional retractors or catheter fixation devices often struggle to achieve rapid and precise adjustment, and it is difficult to achieve a good balance between maintaining the stability of the cannula and the operating flexibility. When expanding, if the vertebral bone nails are not on the same plane; when the retractor is applied to the position of the bone nails, the bone nails are unevenly stressed, and there are situations where the contact between the retractor and the bone nails cannot be fully matched, resulting in the bone nails being pulled out or the retractor tipping up. Therefore, it is necessary to propose a solution to this technical problem. Content of the Utility Model

[0003] (1) Technical Problem to be Solved

[0004] In view of the deficiencies of the prior art, the utility model provides a universal minimally invasive expandable channel system for anterior cervical approach.

[0005] (2) Technical Solution

[0006] To achieve the above object, the utility model provides the following technical solution: A universal minimally invasive expandable channel system for anterior cervical approach, including a rack, an adjustment frame is provided on the rack, an adjustment shaft and a hook limiting member are provided on the adjustment frame, a gear is provided between the adjustment shaft and the rack, support arms are provided on both the rack and the adjustment frame, an external connection mechanism is provided on the rack, a hook arm is provided on the support arm, a pin shaft is provided between the hook arm and the support arm, a cannula is provided on the hook arm, an assembly mechanism is provided between the cannula and the hook arm, the assembly mechanism includes an assembly box and an adjustment groove, the adjustment groove is opened at the bottom end of the hook arm, a universal ball head and a locking button are provided on the adjustment groove, the assembly box is installed on the cannula, an assembly hole is opened on the assembly box, an assembly groove is opened on the assembly hole, a return spring is provided on the assembly groove, a limit card member is provided on the return spring, a clamping post is provided on the universal ball head, a clamping groove is opened on the clamping post, the limit card member abuts against the clamping groove, a quick installation button is provided on one side of the assembly groove, an opening is opened on the cannula, a bone nail is provided on the opening, and retaining pieces are provided on both sides of the cannula.

[0007] Furthermore, the utility model is improved in that the external connection mechanism includes a fixed arm connecting piece, the fixed arm connecting piece is provided with an opening, a screw hole is provided between the opening and a side of the fixed arm connecting piece, a screw rod is provided on the screw hole, and the rack passes through the opening.

[0008] Furthermore, the utility model is improved in that handles are provided on both sides of the sleeve.

[0009] Furthermore, the utility model is improved in that the sleeve is a conical structure.

[0010] Furthermore, the utility model is improved in that the bone screw has a cone structure.

[0011] Furthermore, the utility model is improved in that a handle is provided at the top end of the adjusting shaft.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the utility model provides a universal anterior cervical minimally invasive expandable channel system, which has the following beneficial effects:

[0014] The universal anterior cervical minimally invasive expandable channel system adjusts the support arm spacing by pressing the retractor limiter and rotating the adjustment shaft, realizing the rapid and precise adjustment of the sleeve spacing according to the surgical needs. This design not only improves the adaptability during surgery, but also ensures that there is enough space for the endoscope and surgical instruments during operation, thereby improving the clarity of the surgical field and the accuracy of the operation. The universal ball head design, combined with the quick locking mechanism of the clamping column and the assembly slot, realizes the rapid assembly and universal adjustment of the sleeve. This innovation greatly simplifies the surgical preparation process and shortens the surgical preparation time. At the same time, it ensures the stable positioning of the sleeve during the operation, which is conducive to the efficient operation.

[0015] The cooperation of the reset spring and the limit clamp ensures the firm locking of the clamp column. Even in the complex operating environment encountered in minimally invasive surgery, the sleeve can be kept stable and not shifted, thereby enhancing the safety of the operation. The design of the rotary locking button further strengthens the fixed state of the universal ball head to prevent accidental movement, providing a more reliable support platform for surgical operations. The quick-release button makes the operation extremely simple and quick when the clamp column needs to be replaced or removed, reducing the interruption time of the operation, while also reducing the workload of the surgical team, improving the smoothness of the surgical process, and solving the common problem of the retractor being unable to open in parallel in clinical practice. Through its unique structural design, it can effectively offset the lateral force and ensure the parallel opening of the retractor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0017] Figure 2 Structural schematic of the present utility model Figure 2 ;

[0018] Figure 3 Front half-sectional view of the structure of the present utility model;

[0019] Figure 4 For the present utility model Figure 1 Enlarged structural schematic diagram of the middle sleeve in the present utility model.

[0020] In the figure: 1, rack; 2, adjustment frame; 3, adjustment shaft; 4, hook limiting member; 5, support arm; 6, hook arm; 7, pin shaft; 8, sleeve; 9, assembly box; 10, universal ball head; 11, return spring; 12, limit clamping member; 13, clamping post; 14, quick-installation button; 15, bone nail; 16, fixed arm connecting member; 17, screw; 18, handle; 19, locking button. Specific implementation manners

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-4, the present utility model is a universal anterior cervical minimally invasive expandable channel system, including a rack 1, an adjustment frame 2 is provided on the rack 1, an adjustment shaft 3 and a hook limiting member 4 are provided on the adjustment frame 2, a gear is provided between the adjustment shaft 3 and the rack 1, support arms 5 are provided on both the rack 1 and the adjustment frame 2, an external connection mechanism is provided on the rack 1, a hook arm 6 is provided on the support arm 5, a pin shaft 7 is provided between the hook arm 6 and the support arm 5, a sleeve 8 is provided on the hook arm 6, an assembly mechanism is provided between the sleeve 8 and the hook arm 6, the assembly mechanism includes an assembly box 9 and an adjustment groove, the adjustment groove is opened at the bottom end of the hook arm 6, a universal ball head 10 and a locking button 19 are provided on the adjustment groove, the assembly box 9 is installed on the sleeve 8, an assembly hole is opened on the assembly box 9, an assembly groove is opened on the assembly hole, a return spring 11 is provided on the assembly groove, a limit card member 12 is provided on the return spring 11, a clamping post 13 is provided on the universal ball head 10, a clamping groove is opened on the clamping post 13, the limit card member 12 abuts against the clamping groove, a quick installation button 14 is provided on one side of the assembly groove, an opening is opened on the sleeve 8, a bone screw 15 is provided on the opening, and retaining pieces are provided on both sides of the sleeve 8. In this embodiment, by pressing the hook limiting member 4 and holding and rotating the adjustment shaft 3, the adjustment shaft 3 drives the gear to move, facilitating the adjustment of the position of the adjustment frame 2 on the rack 1, thereby adjusting the distance between the two support arms 5 and facilitating the adjustment of the distance between the two sleeves 8 according to requirements. Then, the hook limiting member 4 is released, facilitating the use of the sleeve 8. The sleeve 8 is the channel for the endoscope and surgical instruments, ensuring the operating space for the endoscope and surgical instruments. The clamping post 13 of the universal ball head 10 abuts against the assembly groove, and the return spring 11 supports the limit card member 12, so that the limit card member 12 is fixed on the clamping groove and the clamping post 13 is fixed, realizing the quick assembly of the sleeve 8 on the clamping post 13. The universal ball head 10 facilitates the universal adjustment of the sleeve 8, facilitating minimally invasive operation. By rotating the locking button 19, the universal ball head 10 is fixed. When it is necessary to remove the clamping post 13, pressing the quick installation button 14 can cause the return spring 11 to drive the limit card member 12 to reset, so that the clamping post 13 can be taken out. By using this structural universal adjustment device, partial forces in other directions can be offset, realizing the parallel expansion of the hook and solving the problem that the hook cannot be expanded in parallel that may occur clinically. If the direction of nailing the bone screw is not parallel and the horizontal expansion force is applied, a parallel force application effect can be achieved.

[0023] In this solution, the external connection mechanism includes a fixed arm connector 16. An opening is provided on the fixed arm connector 16, and a threaded hole is provided between the opening and one side of the fixed arm connector 16. A screw rod 17 is provided on the threaded hole. The rack 1 passes through the opening. The opening facilitates the assembly of the fixed arm connector 16 on the rack 1. Then, by rotating the screw rod 17 in the threaded hole, the fixed arm connector 16 can be fixed on the rack 1, which is convenient for fixedly assembling the fixed arm connector 16.

[0024] In this solution, handles 18 are provided on both sides of the sleeve 8, which facilitates personnel to hold and use the sleeve 8 through the handles 18.

[0025] In this solution, the sleeve 8 is of a conical structure. Due to the conical structure of the sleeve 8, the lower end is narrower to ensure a smaller surgical incision, and the upper end has a larger size to ensure the operation space for the endoscope and surgical instruments, enabling better application in minimally invasive surgery.

[0026] In this solution, the bone nail 15 is of a conical structure. Due to the conical structure of the bone nail 15, it is convenient to use the bone nail 15.

[0027] In this solution, a handle is provided at the top of the adjusting shaft 3, which facilitates the use of the sleeve 8 by holding the handle.

[0028] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A universal anterior cervical minimally invasive expandable channel system, comprising a rack (1), characterized in that: The rack (1) is provided with an adjustment frame (2), the adjustment frame (2) is provided with an adjustment shaft (3) and a hook stopper (4), a gear is provided between the adjustment shaft (3) and the rack (1), the rack (1) and the adjustment frame (2) are both provided with a support arm (5), the rack (1) is provided with an external mechanism, the support arm (5) is provided with a hook arm (6), a pin shaft (7) is provided between the hook arm (6) and the support arm (5), a sleeve (8) is provided on the hook arm (6), an assembly mechanism is provided between the sleeve (8) and the hook arm (6), the assembly mechanism comprises an assembly box (9) and an adjustment slot, the adjustment slot is provided on the hook arm (6) The bottom end of the adjusting groove is provided with a universal ball head (10) and a locking button (19), the assembly box (9) is installed on the sleeve (8), the assembly box (9) is provided with an assembly hole, the assembly hole is provided with an assembly slot, the assembly slot is provided with a reset spring (11), the reset spring (11) is provided with a limit clamp (12), the universal ball head (10) is provided with a clamping column (13), the clamping column (13) is provided with a clamping slot, the limit clamp (12) is against the clamping slot, a quick-release button (14) is provided on one side of the assembly slot, the sleeve (8) is provided with an opening, the opening is provided with a bone screw (15), and baffles are provided on both sides of the sleeve (8).

2. The universal anterior cervical minimally invasive expandable channel system according to claim 1, characterized in that: The external connection mechanism comprises a fixed arm connecting piece (16), an opening is provided on the fixed arm connecting piece (16), a screw hole is provided between the opening and one side of the fixed arm connecting piece (16), a screw rod (17) is provided on the screw hole, and the rack (1) passes through the opening.

3. The universal anterior cervical minimally invasive expandable channel system according to claim 2, characterized in that: Handles (18) are provided on both sides of the sleeve (8).

4. The universal anterior cervical minimally invasive expandable channel system according to claim 3, characterized in that: The sleeve (8) is a conical structure.

5. The universal anterior cervical minimally invasive expandable channel system according to claim 4, characterized in that: The bone screw (15) has a pyramidal structure.

6. The universal anterior cervical minimally invasive expandable channel system according to claim 5, characterized in that: A handle is provided at the top end of the adjusting shaft (3).

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