An adjustable foraminoplasty stabilizing device

Abstract

The utility model relates to medical auxiliary instrument especially adjustable intervertebral foramen forming stabilizing device, including horizontal pole, rotating component, support rod, lower hanging rod, angle adjusting assembly and sleeve etc. The utility model is provided with support rod, horizontal pole, lower hanging rod, rotating component and angle adjusting assembly, is fixed through a plurality of bolts, need not doctor manual fixed ring saw to be able to stably, safely, effectively and grind off upper articular process ventral side, thereby good realization intervertebral foramen forming, through height adjustment and multi -angle adjustment, can adjust the position and angle of sleeve according to patient demand and operation requirement, improve the applicability of this stabilizing device.

Description

Technical Field

[0001] This utility model relates to medical auxiliary devices, and more particularly to an adjustable stabilizing device for intervertebral foramen shaping. Background Technology

[0002] Foraminoplasty is a minimally invasive spinal surgery used to treat nerve compression symptoms caused by narrowing of the intervertebral foramen. The intervertebral foramen is a passageway located on both sides of the spine through which nerve roots pass. When the intervertebral foramen narrows due to degenerative changes, osteophyte formation, or herniated discs, it may compress the nerve roots passing through, thus causing symptoms such as pain and numbness.

[0003] Foraminal lumbar discectomy aims to reduce pressure on nerve roots and relieve patient symptoms by widening the intervertebral foramen. It is usually performed under local anesthesia. Doctors use special instruments and techniques, such as endoscopy or X-ray-guided puncture, to enter the target area with small incisions in the skin and muscles, and remove some bone or overgrowth to increase the space of the intervertebral foramen. Compared with traditional open surgery, foraminal lumbar discectomy has the advantages of being less invasive and having a faster recovery.

[0004] During lumbar disc herniation percutaneous lumbar discectomy, the direction of the trephine is usually controlled manually by the surgeon based on their experience and skill. Due to the instability of manual control, the trephine may slip during operation, leading to unnecessary bone damage or failure to accurately reach the intended position. Without sufficient stable support, the direction of the trephine may deviate, making it impossible to cut precisely along the predetermined path, thus affecting the accuracy of the surgery. These problems may lead to the surgery failing to achieve the expected results and may even cause complications such as nerve damage, increasing surgical risks and patient recovery time. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide an adjustable intervertebral foramen shaping stabilizing device.

[0006] An adjustable stabilizing device for intervertebral foramen shaping includes a crossbar, a rotating assembly, a support rod, a lower hanging rod, an angle adjusting assembly, a sleeve, a connecting column, a second bolt, a base rod, a fixing block, and a first bolt. The crossbar is connected to rotating assemblies at both ends. The left end of the crossbar is connected to the support rod via the rotating assembly, and the right end of the crossbar is connected to the lower hanging rod via the rotating assembly. The end of the lower hanging rod furthest from the crossbar is connected to the angle adjusting assembly, and a sleeve is connected to the angle adjusting assembly. The end of the support rod furthest from the crossbar is rotatably connected to the connecting column, and the support rod extends into the connecting column. A second bolt is threaded onto the outer wall of the connecting column, and the second bolt extends into the connecting column. The end of the connecting column furthest from the support rod is connected to the base rod, and a fixing block is slidably connected to the outer wall of the base rod. A first bolt is threaded onto the fixing block, and the first bolt passes through the fixing block.

[0007] Optionally, the rotating assembly includes a first fixed seat, a first rotating shaft, and a third bolt. The first rotating shaft is connected to both the left and right sides of the crossbar. The first fixed seat is installed on the outer wall of the first rotating shaft. The third bolt is threaded onto the first fixed seat and passes through the first fixed seat. The support rod and the lower hanging rod are fixedly connected to the corresponding first fixed seat.

[0008] Optionally, the rotating assembly also includes a rotating ring. The rotating ring is connected to both the front and rear sides of the first fixed seat. The rotating shaft has a rotating groove adapted to the rotating ring on both the front and rear sides. The rotating ring is rotatably connected to the rotating groove.

[0009] Optionally, the angle adjustment assembly includes a second fixed seat, a second rotating shaft, and a fourth bolt. The end of the lower hanging rod away from the crossbar is connected to the second fixed seat. The front side of the second fixed seat is rotatably connected to the second rotating shaft. The rear side of the second fixed seat is threaded with the fourth bolt, which passes through the second fixed seat. The second rotating shaft is fixedly connected to the sleeve.

[0010] Optionally, it also includes a connecting block, with the first bolt connected to the end near the base rod.

[0011] Optionally, it also includes a rubber pad, with the bottom rod connected to the side near the first bolt.

[0012] This utility model is equipped with a support rod, a crossbar, a lower hanging rod, a rotating component, and an angle adjustment component, which are fixed by multiple bolts. It can stably, safely, and effectively grind away the ventral side of the superior articular process without the need for the doctor to manually fix the trephine, thereby achieving good intervertebral foramen shaping. Through height adjustment and multi-angle adjustment, the position and angle of the cannula can be adjusted according to the patient's needs and surgical requirements, improving the applicability of this stabilizing device. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a cross-sectional view of the fixing block of this utility model.

[0015] Figure 3 This is a schematic diagram showing the separation of the first fixed base, rotating ring, and first rotating shaft structure of this utility model.

[0016] Figure 4 This is a cross-sectional view of the second fixing seat and the second rotating shaft of this utility model.

[0017] Explanation of reference numerals in the attached drawings: 1-Fixing block, 101-Operating bedside slide rail, 2-Bottom rod, 201-Rubber pad, 3-First bolt, 301-Connecting block, 4-Connecting column, 5-Support rod, 6-Second bolt, 7-First fixing seat, 8-Rotating ring, 9-First rotating shaft, 901-Rotating groove, 10-Third bolt, 11-Horizontal bar, 12-Lower hanging rod, 13-Second fixing seat, 14-Second rotating shaft, 15-Sleeve, 16-Fourth bolt. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] An adjustable stabilizing device for intervertebral foramen shaping, such as Figures 1-4 As shown, the assembly includes a crossbar 11, a rotating component, a support rod 5, a lower hanging rod 12, an angle adjustment component, a sleeve 15, a connecting column 4, a second bolt 6, a base rod 2, a rubber pad 201, a fixing block 1, a first bolt 3, and a connecting block 301. The crossbar 11 has rotating components connected to both its left and right ends. The left end of the crossbar 11 is connected to the support rod 5 via the rotating component, and the right end of the crossbar 11 is connected to the lower hanging rod 12 via the rotating component. The end of the lower hanging rod 12 furthest from the crossbar 11 is connected to the angle adjustment component, and a sleeve 15 is connected to the angle adjustment component. The inner diameter of the sleeve 15 is larger than the outer diameter of the outer sleeve of the ring saw. The end of the support rod 5 furthest from the crossbar 11 is rotatably connected to the connecting column 4, and the support rod 5 extends into the connecting column 4. The outer wall of the connecting column 4 is threaded with a second bolt 6, which extends into the connecting column 4. The end of the connecting column 4 furthest from the support rod 5 is fixedly connected to the base rod 2. The base rod 2, support rod 5, cross rod 11, and lower hanging rod 12 are all made of carbon steel, which will not affect intraoperative fluoroscopy and can meet the high-temperature sterilization standards stipulated for surgery, maintaining a sterile surgical environment. The base rod 2 has a sliding connection to a fixing block 1 on its outer wall. The front and rear sides and the side away from the first bolt 3 of the fixing block 1 are open. The first bolt 3 is threaded onto the fixing block 1 and passes through the fixing block 1. A rubber pad 201 is fixedly connected to the side of the base rod 2 near the first bolt 3. The rubber pad 201 can increase the friction between the base rod 2 and the operating table side rail 101 to prevent the base rod 2 from slipping. A connecting block 301 is fixedly connected to the end of the first bolt 3 near the base rod 2. The connecting block 301 can increase the contact surface between the first bolt 3 and the operating table side rail 101, evenly distribute the tightening force of the first bolt 3, and improve the stability of this stabilizing device.

[0020] like Figure 1 and Figure 3 As shown, the rotating assembly includes a first fixed seat 7, a rotating ring 8, a first rotating shaft 9, and a third bolt 10. The first rotating shaft 9 is fixedly connected to both the left and right sides of the crossbar 11. The first fixed seat 7 is installed on the outer wall of the first rotating shaft 9. The rotating ring 8 is fixedly connected to both the front and rear sides of the first fixed seat 7. The first rotating shaft 9 has a rotating groove 901 on both the front and rear sides that matches the rotating ring 8. The rotating ring 8 is rotatably connected to the rotating groove 901. The third bolt 10 is threaded onto the first fixed seat 7. The third bolt 10 passes through the first fixed seat 7. The support rod 5 and the lower hanging rod 12 are fixedly connected to the corresponding first fixed seat 7.

[0021] like Figure 1 and Figure 4 As shown, the angle adjustment assembly includes a second fixed seat 13, a second rotating shaft 14, and a fourth bolt 16. The end of the lower hanging rod 12 away from the crossbar 11 is fixedly connected to the second fixed seat 13. The front side of the second fixed seat 13 is rotatably connected to the second rotating shaft 14. The rear side of the second fixed seat 13 is threadedly connected to the fourth bolt 16, which passes through the second fixed seat 13. The second rotating shaft 14 is fixedly connected to the sleeve 15.

[0022] Initially, neither the rotating component nor the angle adjustment component is fixed. Before performing percutaneous lumbar discectomy, this stabilizing device needs to be installed on the operating table. First, slide the bottom rod 2 away from the fixing block 1, causing the right side of the fixing block 1 to move closer to the operating table side slide rail 101. The operating table side slide rail 101 is located in the opening on the right side of the fixing block 1. Insert the bottom rod 2 from top to bottom between the operating table side slide rail 101 and the operating table body. The operating table side slide rail 101 is located between the connecting block 301 and the bottom rod 2. Move the bottom rod 2 to a suitable height. Rotate the first bolt 3 to move the connecting block 301 and compress the operating table side slide rail. Under the squeezing action of the connecting block 301, the operating table slide rail 101 is pressed tightly against the bottom rod 2, thereby completing the fixation of this stabilizing device. The support rod 5 rotates axially along the connecting column 4, so that the crossbar 11 is located above the patient's waist. By rotating the second bolt 6, the support rod 5 is pressed and fixed, causing the crossbar 11 to rotate along the left first fixed seat 7, causing the lower hanging rod 12 to move closer to the patient's waist. The lower hanging rod 12 rotates along the first fixed seat 7, causing the angle adjustment component to move closer to the patient's waist. Rotating the second rotating shaft 14 causes the sleeve 15 to rotate, so that one end of the sleeve 15 is closer to the patient. The surgical position is determined by inserting the outer sleeve of the trephine saw into the cannula 15, then inserting the trephine saw into the outer sleeve. The positions of the lower hanging rod 12 and the cannula are then fine-tuned using the rotation and angle adjustment components to bring the trephine saw into the target area. The two third bolts 10 are rotated to secure the crossbar 11 and the lower hanging rod 12 respectively. The fourth bolt 16 is then rotated to secure the second rotating shaft 14, completely fixing the stabilizing device and preventing rotation of the crossbar 11, lower hanging rod 12, or cannula 15 that could lead to surgical failure. This allows for stable, safe, and effective grinding of the superior joint protrusion without the need for manual fixation by the surgeon. The device can be used to achieve good intervertebral foramen shaping. If a patient with significant hyperplasia requires secondary shaping, simply loosen the third bolt 10 and the fourth bolt 16, rotate and adjust the direction of the crossbar 11, the lower hanging rod 12, and the sleeve 15 to re-lock them. After the operation, remove the trephine from the sleeve 15, loosen the second bolt 6 and the third bolt 10, and rotate the support rod 5 and the crossbar 11 to move the sleeve 15 away from the operating table. The operation is simple. Through height adjustment and multi-angle adjustment, the position and angle of the sleeve 15 can be adjusted according to the patient's needs and surgical requirements, improving the applicability of this stabilizing device.

[0023] Although this disclosure has been shown and described with reference to specific exemplary embodiments thereof, those skilled in the art will understand that various changes in form and detail may be made to this disclosure without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Therefore, the scope of this disclosure should not be limited to the above embodiments, but should be defined not only by the appended claims, but also by their equivalents.

Claims

1. An adjustable stabilizing device for intervertebral foramen shaping, characterized in that: The system includes a crossbar (11), a rotating assembly, a support rod (5), a lower hanging rod (12), an angle adjustment assembly, a sleeve (15), a connecting column (4), a second bolt (6), a base rod (2), a fixing block (1), and a first bolt (3). The crossbar (11) is connected to rotating assemblies at both ends. The left end of the crossbar (11) is connected to the support rod (5) via the rotating assembly, and the right end of the crossbar (11) is connected to the lower hanging rod (12) via the rotating assembly. The end of the lower hanging rod (12) furthest from the crossbar (11) is connected to an angle adjustment assembly. The component is connected to a sleeve (15), and the end of the support rod (5) away from the crossbar (11) is rotatably connected to a connecting column (4). The support rod (5) extends into the interior of the connecting column (4). The outer wall of the connecting column (4) is threaded with a second bolt (6). The second bolt (6) extends into the interior of the connecting column (4). The end of the connecting column (4) away from the support rod (5) is connected to a bottom rod (2). The outer wall of the bottom rod (2) is slidably connected to a fixing block (1). The fixing block (1) is threaded with a first bolt (3). The first bolt (3) passes through the fixing block (1).

2. The adjustable intervertebral foramen shaping stabilizing device as described in claim 1, characterized in that: The rotating assembly includes a first fixed seat (7), a first rotating shaft (9), and a third bolt (10). The first rotating shaft (9) is connected to both the left and right sides of the crossbar (11). The first fixed seat (7) is installed on the outer wall of the first rotating shaft (9). The third bolt (10) is threaded onto the first fixed seat (7). The third bolt (10) passes through the first fixed seat (7). The support rod (5) and the lower hanging rod (12) are fixedly connected to the corresponding first fixed seat (7).

3. The adjustable intervertebral foramen shaping stabilizing device as described in claim 2, characterized in that: The rotating assembly also includes a rotating ring (8). The rotating ring (8) is connected to both the front and rear sides of the first fixed seat (7). The rotating shaft (9) has a rotating groove (901) adapted to the rotating ring (8) on both the front and rear sides. The rotating ring (8) is rotatably connected to the rotating groove (901).

4. The adjustable intervertebral foramen shaping stabilizing device as described in claim 3, characterized in that: The angle adjustment assembly includes a second fixed seat (13), a second rotating shaft (14), and a fourth bolt (16). The end of the lower hanging rod (12) away from the crossbar (11) is connected to the second fixed seat (13). The second rotating shaft (14) is rotatably connected to the front side of the second fixed seat (13). The fourth bolt (16) is threadedly connected to the rear side of the second fixed seat (13). The fourth bolt (16) passes through the second fixed seat (13). The second rotating shaft (14) is fixedly connected to the sleeve (15).

5. The adjustable intervertebral foramen shaping stabilizing device as described in claim 4, characterized in that: The stabilizing device also includes a connecting block (301), and the first bolt (3) is connected to the connecting block (301) at one end near the bottom rod (2).

6. The adjustable intervertebral foramen shaping stabilizing device as described in claim 5, characterized in that: The stabilizing device also includes a rubber pad (201), and the bottom rod (2) is connected to the rubber pad (201) on the side near the first bolt (3).

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