Lumbar vertebra ULIF surgical nerve root protection tool

Abstract

The utility model provides a nerve root protection tool for a lumbar vertebra ULIF operation, and relates to the technical field of orthopedic operation auxiliary instruments. According to the technical scheme, the nerve root protection tool for the lumbar ULIF surgery comprises a fixing cylinder, a first supporting plate is fixed to one end of the fixing cylinder, a communicating opening is formed in the end, close to the first supporting plate, of the fixing cylinder, a rotating rod is arranged in the fixing cylinder, and a second supporting plate penetrating through the communicating opening is fixed to the rotating rod. The nerve root protection tool has the advantages that the angle of the supporting plate can be accurately adjusted according to the specific condition of a patient, it is ensured that the first supporting plate and the second supporting plate can effectively support and fix a walking root and an outlet root respectively, and therefore personalized nerve root protection is achieved, and the safety and the effect of an operation are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of orthopedic surgical auxiliary instruments, in particular to a nerve root protection tool for lumbar ULIF surgery. Background Art

[0002] As the current mainstream minimally invasive surgery for lumbar fusion, the lumbar ULIF surgery has extremely high requirements for the accuracy and safety of surgical operations. During the process of implanting the intervertebral fusion cage during the operation, the protection of the nerve root is particularly important. As an important part of the nervous system, the nerve root may cause serious complications once damaged, affecting the postoperative recovery and quality of life of patients. The nerve root protection tool can precisely and safely expand the surrounding tissues, expose the nerve root, enabling the doctor to clearly see and avoid nerve tissues, thus effectively reducing the risk of nerve root injury during the operation. At the same time, the design and application of the nerve root protection tool also reflect the continuous progress and innovation of modern medical device technology, providing a strong guarantee for the safety and effectiveness of lumbar fusion surgery. Therefore, in the lumbar ULIF surgery, the importance of the nerve root protection tool cannot be ignored.

[0003] Since the nerve root is divided into the traveling root and the exiting root, the existing nerve root protection tools include two support plates that are angled with each other and have a fixed angle. The two support plates can respectively provide effective support and protection for the traveling root and the exiting root.

[0004] However, in actual clinical applications, due to individual differences in the physiological structure of each patient, the relative positions of the traveling root and the exiting root will also deviate. Therefore, the nerve root protection tool with a fixed angle is often difficult to fully adapt to the specific conditions of different patients, which to a certain extent limits the use effect and applicability of the nerve root protection tool. Summary of the Invention

[0005] Aiming at the problem that the nerve root protection tool cannot adjust the angle and is difficult to adapt to different patients, the utility model provides a nerve root protection tool for lumbar ULIF surgery with an adjustable angle and capable of adapting to different patients.

[0006] To solve the above problems, the technical solution adopted by the present utility model is a nerve root protection tool for lumbar ULIF surgery, which includes a fixed cylinder. One end of the fixed cylinder is fixedly connected with a first support plate. A communication port is provided at one end of the fixed cylinder close to the first support plate. A rotating rod is arranged inside the fixed cylinder, and a second support plate passing through the communication port is fixedly connected to the rotating rod. When the rotating rod rotates, it will rotate synchronously with the second support plate, while the fixed cylinder and the first support plate remain stationary, thereby allowing the angle between the first support plate and the second support plate to be adjusted flexibly. Therefore, this tool can accurately adjust the angle between the first support plate and the second support plate according to the specific situation of the patient, ensure that the two can effectively support and fix the walking root and the exiting root respectively, and thus achieve personalized nerve root protection.

[0007] Preferably, one side edge of the first support plate is fixedly connected to the outer wall of the fixed cylinder. One side edge of the first support plate is fixedly connected to the outer wall of the fixed cylinder to ensure that the contact surface between the first support plate and the nerve root is maximized, so as to provide a more stable support for the nerve root.

[0008] Preferably, one side edge of the second support plate passes through the communication port and is fixedly connected to the outer wall of the rotating rod, and the second support plate can rotate synchronously with the rotating rod. One side edge of the second support plate passes through the communication port and is fixedly connected to the outer wall of the rotating rod to ensure that the communication hole can limit the rotation of the second support plate.

[0009] Preferably, the cross-section of one end of the fixed cylinder close to the first support plate is a three-quarter circle ring. The cross-section is set as a three-quarter circle ring, which can limit the rotation angle of the second support plate between 0° and 90°, effectively preventing potential damage to the nerve root caused by the excessive rotation angle of the second support plate, thereby ensuring the safety during the operation and the effectiveness of nerve root protection.

[0010] Preferably, the other side edge of the first support plate is arc-shaped, and the other side edge of the second support plate is also arc-shaped. The arc-shaped design can significantly reduce the potential damage of the first support plate and the second support plate to other tissues during the operation, ensuring the safety of the operation and the effectiveness of nerve root protection.

[0011] Preferably, a knob is fixedly connected to the end of the rotating rod far from the second support plate. The setting of the knob makes the rotation operation of the rotating rod more convenient.

[0012] Preferably, a connecting plate is fixedly connected to the end of the fixed cylinder far from the first support plate, and a handle is fixedly connected to the connecting plate. The handle makes the position adjustment of the fixed cylinder more convenient.

[0013] As can be seen from the above technical solutions, the advantages of the present utility model are as follows: With the help of the handle, the fixing cylinder and the first support plate can be accurately sent to the position of the nerve root. Subsequently, by operating the knob, the rotating rod and the second support plate can rotate synchronously, and then the included angle between the first support plate and the second support plate can be flexibly adjusted. To sum up, this tool can accurately adjust the angle of the support plate according to the specific conditions of the patient, ensure that the first support plate and the second support plate can effectively support and fix the walking root and the exit root respectively, so as to achieve personalized nerve root protection and improve the safety and effect of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the present utility model, the drawings required to be used in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0015] Figure 1 Structural schematic diagram of the specific embodiment of the present utility model Figure 1 。

[0016] Figure 2 Structural schematic diagram of the specific embodiment of the present utility model Figure 2 。

[0017] Figure 3 Cross-sectional schematic diagram of the fixing cylinder in the specific embodiment of the present utility model.

[0018] Figure 4 For Figure 3 Local enlarged view of part A in

[0019] Main reference numeral description

[0020] In the figure: 1. Fixing cylinder, 2. Rotating rod, 3. First support plate, 4. Second support plate, 5. Communication port, 6. Connecting plate, 7. Handle, 8. Knob, 9. Arc shape. SPECIFIC EMBODIMENTS

[0021] In order to make the purpose, features, and advantages of the present utility model more obvious and understandable, the technical solutions in the present utility model will be clearly and completely described below in conjunction with the drawings in the specific embodiments of the present utility model. Obviously, the embodiments described below are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments in this patent, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of this patent.

[0022] A nerve root protection tool for lumbar ULIF surgery, comprising a fixing cylinder 1. One end of the fixing cylinder 1 is fixedly provided with a first support plate 3. A rotating rod 2 is arranged inside the fixing cylinder 1, and the rotating rod 2 can rotate inside the fixing cylinder 1. One end of the rotating rod 2 close to the first support plate 3 is fixedly provided with a second support plate 4, and the second support plate 4 can rotate synchronously with the rotating rod 2, so as to flexibly adjust the angle between the first support plate 3 and the second support plate 4.

[0023] As Figure 1 shown, in this specific embodiment, the fixing cylinder 1 specifically adopts the following structure: The fixing cylinder 1 is a cylindrical sleeve, and one side edge of the first support plate 3 is fixedly connected to the outer wall of the fixing cylinder 1. In this embodiment, the first support plate 3 and the fixing cylinder 1 are integrally processed. The other side edge of the first support plate 3 is set as an arc 9, and the arc 9 can prevent the first support plate 3 from damaging other tissues of the human body.

[0024] A communication port 5 is arranged at one end of the fixing cylinder 1 close to the first support plate 3, and the communication port 5 is far from the first support plate 3. As Figure 3 shown, the cross-section of one end of the fixing cylinder 1 close to the first support plate 3 is three-quarters of a ring, that is, the communication port 5 can limit the rotation angle of the second support plate 4 between 0° and 90°. As Figure 4 shown, when the second support plate 4 rotates to the closest distance to the first support plate 3, the angle between the second support plate 4 and the first support plate 3 is 45°, that is, the angle range between the second support plate 4 and the first support plate 3 is 45° to 135°. A connecting plate 6 is fixedly arranged at the end of the fixing cylinder 1 far from the first support plate 3, and the connecting plate 6 and the fixing cylinder 1 are integrally processed. As Figure 2 shown, a handle 7 is fixedly arranged on the connecting plate 6, and the handle 7 and the connecting plate 6 are integrally processed.

[0025] In this specific embodiment, the rotating rod 2 specifically adopts the following structure: The rotating rod 2 is set as a cylinder, the rotating rod 2 is coaxial with the fixing cylinder 1, and the size of the rotating rod 2 is adapted to the inner diameter of the fixing cylinder 1. One side edge of the second support plate 4 passes through the communication port 5 and is fixedly connected to the outer wall of the rotating rod 2. In this embodiment, the second support plate 4 and the rotating rod 2 are integrally processed. When the rotating rod 2 rotates, the second support plate 4 can rotate synchronously with the rotating rod 2. The other side edge of the second support plate 4 is set as an arc 9, and the arc 9 can prevent the second support plate 4 from damaging other tissues of the human body. A knob 8 is fixedly arranged at the end of the rotating rod 2 far from the second support plate 4, and the knob 8 and the rotating rod 2 are integrally processed.

[0026] The specific use process of this utility model is as follows: First, by rotating the knob 8, precisely adjust the angle between the second support plate 4 and the first support plate 3 to 45°. Subsequently, through the handle 7, send the first support plate 3 and the second support plate 4 to the position of the nerve root in coordination. Then, rotate the knob 8 again and gradually increase the angle between the first support plate 3 and the second support plate 4 until they can effectively support and fix the walking root and the exit root respectively, ensuring that the nerve root is fully protected. Since the positions of the knob 8 and the handle 7 are very close, after rotating the knob 8, the doctor can hold the handle 7 with one hand and press the knob 8 to prevent the knob 8 from rotating.

[0027] As can be seen from the above embodiments, the beneficial effects of this utility model are as follows: With the help of the handle, the fixed cylinder and the first support plate can be precisely sent to the position of the nerve root. Subsequently, by operating the knob, the rotating rod and the second support plate can rotate synchronously, and then the included angle between the first support plate and the second support plate can be flexibly adjusted. To sum up, this tool can accurately adjust the angle of the support plate according to the specific conditions of the patient, ensure that the first support plate and the second support plate can effectively support and fix the walking root and the exit root respectively, so as to achieve personalized nerve root protection and improve the safety and effect of the operation.

[0028] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A nerve root protection tool for lumbar ULIF procedure, characterized in that: The invention comprises a fixed cylinder (1), one end of which is fixed with a support plate 1 (3), an end of the fixed cylinder (1) close to the support plate 1 (3) is provided with a communication port (5), a rotating rod (2) is provided inside the fixed cylinder (1), and a support plate 2 (4) passing through the communication port (5) is fixed on the rotating rod (2).

2. The nerve root protection tool for lumbar ULIF procedure according to claim 1, characterized in that: One side edge of the support plate 1 (3) is fixedly connected to the outer wall of the fixed cylinder (1).

3. The nerve root protection tool for lumbar ULIF procedure according to claim 2, characterized in that: One side edge of the second support plate (4) passes through the communication port (5) and is fixedly connected to the outer wall of the rotating rod (2), and the second support plate (4) can rotate synchronously with the rotating rod (2).

4. The nerve root protection tool for lumbar ULIF procedure according to claim 3, characterized in that: The cross section of one end of the fixing tube (1) close to the supporting plate (3) is a three-quarter ring.

5. The nerve root protection tool for lumbar ULIF procedure according to claim 3, characterized in that: The other side of the support plate 1 (3) is in an arc shape (9), and the other side of the support plate 2 (4) is also in an arc shape (9).

6. The nerve root protection tool for lumbar ULIF procedure according to claim 1, characterized in that: A knob (8) is fixed to one end of the rotating rod (2) away from the second supporting plate (4).

7. The nerve root protection tool for lumbar ULIF procedure according to claim 1, characterized in that: A connecting plate (6) is fixed to one end of the fixing tube (1) away from the supporting plate (3), and a handle (7) is fixed to the connecting plate (6).

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