Device for connecting nerve drag hook and endoscopic sheath in UBE operation

Abstract

The utility model belongs to the technical field of medical apparatus and instruments, and particularly relates to a device for linking a nerve retractor and a sheath in a UBE operation, the device comprises a holding piece, a limiting ring and a limiting arc piece, two ends of the holding piece are respectively connected with the limiting ring and the limiting arc piece so as to realize stable fixation and flexible adjustment of the endoscope sheath and the nerve retractor in the operation; the inner side of the limiting ring is provided with an arc-shaped strip adaptive to different sheath diameters, rapid fixation of the sheath is achieved through a threaded hole and a screw, and shaking in the surgical operation is avoided; an arc-shaped notch and a containing cavity of the limiting arc piece are designed for stably supporting the nerve drag hook, and the safety of surgical operation is guaranteed; the holding piece is composed of the first corrugated pipe and the second corrugated pipe, the multi-direction adjusting function is achieved, medical staff can conveniently and accurately adjust the positions of the endoscope sheath and the nerve drag hook, and therefore the convenience and accuracy of surgical operation are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical apparatus and instruments, and particularly relates to a device for linking a nerve retractor and a scope sheath during UBE operation. BACKGROUND

[0002] With the rapid development of minimally invasive surgery, UBE (unilateral double-channel endoscopic surgery) technology has been widely used in the field of spinal surgery. The implementation of UBE technology requires the establishment of a double channel on the patient's body, which is used to place an endoscope and surgical instruments respectively, so as to observe and perform fine operations in real time during the operation process. However, when dealing with the intervertebral space during the operation, the assistant needs to help pull open the nerve, and the operator needs to perform the operation. However, due to the poor cooperation of the assistant and the high degree of operation precision, it is difficult to meet the requirements of the operator for pulling open the nerve. Therefore, a device for linking a nerve retractor and a spinal endoscope scope is designed to meet the requirements of the operator for pulling open the nerve while holding the endoscope.

[0003] At present, there is no connecting device that can link a spinal endoscope and a nerve retractor. The pneumatic arm that fixes the lens or the retractor in conventional surgery cannot meet the requirements of the operation under the endoscope. CONTENT OF THE UTILITY MODEL

[0004] In view of the problems in the prior art, the purpose of the utility model is to provide a device for linking a nerve retractor and a scope sheath during UBE operation, which can realize flexible adaptation to scope sheaths of different diameters and accurate adjustment of the positions of the nerve retractor and the endoscope.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A device for linking a nerve retractor and a scope sheath during UBE operation, comprising a holding piece, the two ends of the holding piece are connected with a limiting ring and a limiting arc piece respectively;

[0007] The limiting ring is used for fixing the scope sheath on the surgical endoscope;

[0008] The limiting arc piece is used for fixing the nerve retractor;

[0009] One end of the limiting ring is provided with a threaded hole, and a screw is arranged in the threaded hole;

[0010] The upper and lower parts of the limiting arc piece are both open structures, and an arc-shaped notch is formed in the inner side of the limiting arc piece, and an arc-shaped limiting plate is arranged on the outer side of the limiting arc piece, and a through hole is formed in the arc-shaped limiting plate.

[0011] Further, an arc-shaped strip is arranged on the inner side wall of the limiting ring, and the arc-shaped strips are distributed at equal intervals around the central axis of the limiting ring.

[0012] Furthermore, the gripping component includes a first bellows, with a second bellows connected to both ends of the first bellows.

[0013] Furthermore, both ends of the first bellows are fixedly connected with first threaded posts;

[0014] One end of the second bellows has a first threaded groove that mates with the first threaded post.

[0015] Furthermore, a second threaded post is fixedly connected to the other end of the second bellows, and a second connector is fixedly connected to one end of the limiting arc member, with a third threaded groove provided at one end of the second connector.

[0016] The outer side of the limiting ring is fixedly connected to a first connector, and one end of the first connector is provided with a second threaded groove;

[0017] Both the second and third threaded grooves mate with the second threaded post.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] First, the multiple arc-shaped strips within the limiting ring allow the device to accommodate endoscope sheaths of different diameters, ensuring stability in applications with endoscopes of various sizes. The threaded hole and screw design at one end of the limiting ring enable quick and secure fixation of the endoscope sheath, preventing displacement or movement during surgery and improving endoscope stability and visual clarity. Simultaneously, the limiting ring's structural design also allows for rapid disassembly and reassembly for different surgical needs, enhancing the device's applicability and the smoothness of the surgical procedure.

[0020] Secondly, the limiting arc component features an open structure at both the top and bottom. Its inner arc-shaped notch and outer arc-shaped limiting plate provide stable support for the placement and fixation of the nerve retractor. The position of the arc-shaped notch and the upper and lower opening structures allow the nerve retractor to effectively avoid important structures such as nerves or blood vessels during surgery after fixation, ensuring the safety and precision of the procedure. The arc-shaped limiting plate has through holes, allowing for secure connection of the device via fastening screws, further reinforcing the overall structure and improving stability during surgery.

[0021] Furthermore, the design of the first and second bellows in the grip allows for multi-directional adjustment, supporting flexibility during surgical procedures. The grip, connected by bellows, enables the limiting ring and limiting arc to be adjusted within a specific range, thereby achieving precise positioning of the endoscope sheath and nerve retractor. This allows medical personnel to more easily adjust the position during surgery, effectively improving the convenience and accuracy of the surgical procedure.

[0022] Furthermore, the threaded column and threaded groove structure design of the device ensures reliable connection and fixation between device components. This allows the gripping parts, limiting rings, and limiting arc parts to maintain stability while being adjusted in multiple directions, preventing structural loosening. This threaded connection method ensures the safety and long-term durability of the overall device during use, providing a more reliable auxiliary device for surgery. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the gripping component of this utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the limiting ring of this utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the limiting arc component of this utility model. Figure 1 ;

[0027] Figure 5 This is a schematic diagram of the structure of the limiting arc component of this utility model. Figure 2 .

[0028] The attached diagram lists the components represented by each number as follows:

[0029] 1. Grip element;

[0030] 11. First bellows; 111. First threaded post;

[0031] 12. Second bellows; 121. First threaded groove; 122. Second threaded post;

[0032] 2. Limiting ring;

[0033] 21. Arc-shaped strip; 22. First connector; 221. Second threaded groove; 23. Threaded hole; 24. Screw;

[0034] 3. Limiting arc component; 31. Arc-shaped notch; 32. Through hole; 33. Second connector; 331. Third threaded groove; 34. Arc-shaped limiting plate. Detailed Implementation

[0035] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0036] See Figures 1-5A device for connecting nerve retractors and endoscope sheaths during UBE surgery includes a grip 1, with a limiting ring 2 and a limiting arc 3 connected to its two ends, respectively. The grip 1 is designed as an adjustable component, which can be flexibly adjusted through a combination of a first corrugated tube 11 and a second corrugated tube 12. The positions of the limiting ring 2 and the limiting arc 3 can be finely adjusted according to the surgical needs to adapt to the anatomical structure of different patients. The limiting ring 2 is used to fix the endoscope sheath on the surgical endoscope. Its internal arc strip 21 adapts to endoscope sheaths of different diameters, ensuring that the endoscope sheath remains stable during the operation. The limiting arc 3 is used to position the nerve retractor, which allows for adjustment of the angle and position of the nerve retractor at any time during the operation, effectively avoiding nerves or important blood vessel structures, and improving the safety and accuracy of the operation.

[0037] One end of the limiting ring 2 has a threaded hole 23, and a screw 24 is installed in the threaded hole 23. By tightening or loosening the screw 24, the endoscope sheath can be locked in the limiting ring 2, so that the endoscope sheath is stable during operation and avoids position displacement. The design of the threaded hole 23 makes it easy to quickly lock or release the endoscope sheath in different surgical steps, which is convenient for medical staff to make immediate adjustments according to actual operation needs.

[0038] The limiting arc member 3 has an open structure at the top and bottom, and an arc-shaped notch 31 is provided on its inner side. The arc-shaped notch 31 is used to facilitate the placement and support of the nerve retractor, and provides a stable fixing structure through the notch. An arc-shaped limiting plate 34 is provided on the outer side of the limiting arc member 3. The arc-shaped limiting plate 34 has a through hole 32, which is used to fix the nerve retractor in the limiting arc member 3 with a fastening screw, thereby improving the overall stability.

[0039] See Figure 3 Multiple arc-shaped strips 21 are provided on the inner wall of the limiting ring 2. The arc-shaped strips 21 are evenly distributed around the central axis of the limiting ring 2 to ensure that the limiting ring 2 can be adapted to endoscope sheaths of different diameters when used. The design of each arc-shaped strip 21 is intended to increase the adaptability of the limiting ring 2, ensure the compatibility and stability of the device, and avoid shaking or loosening under different endoscope sheath diameter conditions, so that the endoscope can always maintain a clear and stable field of vision during the operation.

[0040] See Figure 2 The gripper 1 includes a first corrugated tube 11, and both ends of the first corrugated tube 11 are connected to second corrugated tubes 12. The combination design of the first corrugated tube 11 and the second corrugated tube 12 enables the gripper 1 to have multi-directional adjustment function, which facilitates the adjustment of the direction and position of the endoscope sheath and nerve retractor during the operation. The first corrugated tube 11 provides the core of flexible adjustment, which can be bent and extended within a certain range, making medical staff more flexible during operation.

[0041] See Figure 2Both ends of the first corrugated tube 11 are fixedly connected to the first threaded post 111, and one end of the second corrugated tube 12 is provided with the first threaded groove 121 that mates with the first threaded post 111. Through the cooperation of the first threaded post 111 and the first threaded groove 121, the connection between the first corrugated tube 11 and the second corrugated tube 12 is firm and adjustable. In the overall structure of the device, the firmness and flexibility of the grip 1 are ensured, and the convenience and precision of the surgical operation are enhanced.

[0042] See Figures 2-4 The other end of the second corrugated tube 12 is fixedly connected to a second threaded post 122, and one end of the limiting arc member 3 is fixedly connected to a second connector 33. One end of the second connector 33 has a third threaded groove 331. Through the cooperation of the second threaded post 122 and the third threaded groove 331, a firm connection can be achieved between the limiting arc member 3 and the second corrugated tube 12, thus making the connection structure between the nerve retractor positioning device and the endoscope sheath more stable. The outer side of the limiting ring 2 is fixedly connected to a first connector 22. One end of the first connector 22 has a second threaded groove 221. The second threaded groove 221 cooperates with the second threaded post 122 to achieve a stable connection between the limiting ring 2 and the gripper 1, giving the overall structure of the device high stability and safety. Simultaneously, it allows for precise adjustment during surgery to meet different surgical needs.

[0043] The working principle of this utility model is as follows:

[0044] After the dual channels are established on the patient, the sheath limiting ring 2 is passed through it. The inner lining strip 21 inside the limiting ring 2 allows the limiting ring 2 to be adapted to sheaths of different diameters. The sheath inserted into the limiting ring 2 can be locked by the screw 24.

[0045] The nerve retractor is placed on the limiting arc 3 and fixed to the limiting arc 3 by screws;

[0046] By holding the gripper 1 with your hand and coordinating the bending of the first corrugated tube 11 and the second corrugated tube 12, you can adjust the limiting ring 2 and the limiting arc 3 to the appropriate positions, thereby adjusting the position of the endoscope sheath and the nerve retractor; making the surgical procedure more convenient and precise.

[0047] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A device for linking nerve retractors and endoscope sheaths during UBE surgery, characterized in that: It includes a grip (1), and the two ends of the grip (1) are respectively connected to a limiting ring (2) and a limiting arc (3); The limiting ring (2) is used to fix the sheath of the surgical endoscope; The limiting arc member (3) is used to fix the nerve retractor; One end of the limiting ring (2) has a threaded hole (23) through it, and a screw (24) is provided in the threaded hole (23). The limiting arc member (3) has an open structure at both the top and bottom, and an arc-shaped notch (31) is provided on its inner side. An arc-shaped limiting plate (34) is provided on the outer side of the limiting arc member (3), and a through hole (32) is provided on the arc-shaped limiting plate (34).

2. The device for linking nerve retractors and endoscope sheaths during UBE surgery according to claim 1, characterized in that: The inner wall of the limiting ring (2) is provided with an arc-shaped strip (21), which is evenly distributed around the central axis of the limiting ring (2).

3. The device for linking nerve retractors and endoscope sheaths during UBE surgery according to claim 1, characterized in that: The grip (1) includes a first bellows (11), and both ends of the first bellows (11) are connected to a second bellows (12).

4. The device for linking nerve retractors and endoscope sheaths during UBE surgery according to claim 3, characterized in that: Both ends of the first bellows (11) are fixedly connected with first threaded posts (111). One end of the second bellows (12) is provided with a first threaded groove (121) that mates with the first threaded post (111).

5. The device for linking nerve retractors and endoscope sheaths during UBE surgery according to claim 4, characterized in that: The other end of the second corrugated pipe (12) is fixedly connected to a second threaded post (122), and one end of the limiting arc member (3) is fixedly connected to a second connector (33). One end of the second connector (33) is provided with a third threaded groove (331). The outer side of the limiting ring (2) is fixedly connected to a first connector (22), and one end of the first connector (22) is provided with a second threaded groove (221). The second threaded groove (221) and the third threaded groove (331) both mate with the second threaded post (122).

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