An intervertebral distractor for minimally invasive spinal surgery

Abstract

The utility model provides a kind of intervertebral distraction for spinal minimally invasive surgery, device main body, installation slot is opened in the device main body, symmetric first connecting guide block is arranged in the installation slot, symmetric first connecting guide block side is fixedly installed with fixed block, fixed block one end is fixedly installed with distraction rod, distraction rod one end is fixedly installed with distraction plate, device main body top is fixedly installed with base, base is fixedly installed with illuminating lamp body, base one side is rotatably installed with second torsion bar, second torsion bar one end is provided with brightness adjusting mechanism, brightness adjusting mechanism is located in the base interior, the brightness of illuminating lamp body can be adjusted by the second torsion bar of rotation setting, so that distraction can be adapted to different light intensity surgical scene.

Description

Technical Field

[0001] This utility model relates to intervertebral spacers, and more particularly to an intervertebral spacer for minimally invasive spinal surgery. Background Technology

[0002] In the field of minimally invasive spinal surgery, minimally invasive spinal surgery has advantages such as small incisions, less trauma, and faster recovery, and represents the development trend of spinal surgery. For surgeries requiring only single-segment vertebral screw and rod placement or simple intervertebral disc decompression, a small incision is sufficient to open the surgical field and perform the procedure. Minimally invasive surgery generally requires a specialized intervertebral diffuser to open the incision for surgical manipulation. However, existing diffusers often face challenges in dimly lit surgical environments, and sometimes the bodies of medical staff may block the light source, reducing surgical efficiency and significantly increasing risks. Therefore, there is an urgent need for a new type of intervertebral diffuser for minimally invasive spinal surgery to solve these technical problems. Utility Model Content

[0003] The present invention aims to solve the problem that existing retractors often face the situation of insufficient lighting in the surgical scene, and sometimes the body of medical staff may also block the light source, which reduces the efficiency of the operation and greatly increases the risk.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: An intervertebral diffuser for minimally invasive spinal surgery includes: a device body with an installation slot, symmetrical first connecting guide blocks arranged in the installation slot, a fixing block fixedly installed on one side of each of the symmetrical first connecting guide blocks, a diffuser rod fixedly installed at one end of each fixing block, a diffuser plate fixedly installed at one end of each diffuser rod, a base fixedly installed on the top of the device body, a lighting lamp body fixedly installed on the base, a second torsion bar rotatably installed on one side of the base, a brightness adjustment mechanism located inside the base at one end of the second torsion bar.

[0005] Furthermore, a bidirectional lead screw is rotatably installed on the inner walls of both sides of the mounting slot. The bidirectional lead screw passes through the symmetrical first connecting guide block and is threaded onto the bidirectional lead screw. A first guide rod is fixedly provided on one side of the bidirectional lead screw, and the first guide rod passes through the symmetrical first connecting guide block.

[0006] Furthermore, a connecting column is fixedly installed on the side wall of the main body of the device, and a first torsion bar is rotatably installed inside the connecting column. One end of the first torsion bar passes through the connecting column and the main body of the device and is fixedly connected to one end of the bidirectional lead screw.

[0007] Furthermore, the brightness adjustment mechanism includes symmetrical fixed seats, with a lead screw rotatably mounted between the symmetrical fixed seats, and a fixed cylinder fixedly mounted below the lead screw, with several conductive wires fixedly wound on the surface of the fixed cylinder.

[0008] Furthermore, a second connecting guide block is threaded through and installed on the lead screw. The inner sides of the bottom two ends of the second connecting guide block are respectively tightly attached to the two sides of a plurality of conductive windings on the fixed cylinder. A second guide rod is fixedly installed above the lead screw, and the second guide rod passes through the second connecting guide block.

[0009] Furthermore, one end of the second torsion bar passes through one side of the fixed seat and is fixedly connected to one end of the lead screw.

[0010] Furthermore, a first terminal block is fixedly installed on the side wall near the top of one side of the fixed base, and a second terminal block is fixedly installed on the side wall near the bottom of the fixed base on the other side. The first terminal block and the second terminal block are used to connect the wires inside the base.

[0011] Compared with the prior art, the beneficial effects of this utility model include: by rotating the second torsion rod clockwise or counterclockwise, the lead screw inside the base can be driven to rotate clockwise or counterclockwise, thereby driving the second connecting guide block to slide horizontally left and right. The first and second terminals at both ends are connected to wires, and the current is transmitted from the first terminal to the second terminal through the second guide rod and the conductive winding wire. When the second connecting guide block moves horizontally, the resistance can be adjusted to adjust the current intensity, thereby realizing the brightness adjustment of the lighting body, so that the retractor can adapt to surgical scenarios with different light intensities. Attached Figure Description

[0012] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein: Figure 1 This is an overall structural diagram of an embodiment of the present utility model; Figure 2 This is an enlarged view of part A of the overall structure of this utility model embodiment; Figure 3 This is a partial structural diagram of an embodiment of the present utility model; Figure 4 This is a partial structural front view of an embodiment of the present utility model.

[0013] The following are the labeling elements in the diagram: 1. Main body of the device; 2. Mounting slot; 3. Two-way lead screw; 4. Connecting post; 5. First torsion bar; 6. First connecting guide block; 7. Fixing block; 8. Spreading rod; 9. Spreading plate; 10. First guide rod; 11. Base; 12. Lighting lamp body; 13. Second torsion bar; 14. Fixing seat; 15. Lead screw; 16. Fixing cylinder; 17. Conductive winding wire; 18. Second connecting guide block; 19. Second guide rod; 20. First terminal; 21. Second terminal. Detailed Implementation

[0014] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0015] Example 1 includes a device body 1, on which a mounting slot 2 is formed. Symmetrical first connecting guide blocks 6 are arranged within the mounting slot 2. Fixing blocks 7 are fixedly installed on one side of each of the symmetrical first connecting guide blocks 6. A supporting rod 8 is fixedly installed at one end of each fixing block 7, and a supporting plate 9 is fixedly installed at one end of each supporting rod 8. A base 11 is fixedly installed on the top of the device body 1. A lighting lamp body 12 is fixedly installed on the base 11. A second torsion rod 13 is rotatably installed on one side of the base 11. A brightness adjustment mechanism is provided at one end of the second torsion rod 13, located inside the base 11. The brightness adjustment mechanism includes symmetrical fixing seats 14. A lead screw 15 is rotatably installed between the symmetrical fixing seats 14. A fixing cylinder 16 is fixedly installed below the lead screw 15. Several conductive wires 17 are fixedly wound on the surface of the fixing cylinder 16. A second connecting guide block 18 is threaded through and threaded onto the lead screw 15. The inner sides of the bottom two ends of the second connecting guide block 18 are tightly fitted to the sides of the several conductive wires 17 on the fixing cylinder 16. A second guide rod 19 is fixedly installed on the base 11. The second guide rod 19 passes through the second connecting guide block 18. One end of the second torsion rod 13 passes through a side fixing seat 14 and is fixedly connected to one end of the lead screw 15. A first terminal 20 is fixedly installed on the side wall of the side fixing seat 14 near the top, and a second terminal 21 is fixedly installed on the side wall of the other side fixing seat 14 near the bottom. The first terminal 20 and the second terminal 21 are used to connect the wires inside the base 11. The rotating second torsion rod 13 can drive the lead screw 15 to rotate clockwise or counterclockwise, thereby freely adjusting the left and right horizontal movement of the second connecting guide block 18. The second guide rod 19 can guide its horizontal movement without following the rotation of the lead screw 15. The current will be conducted through the first terminal 20 to the second guide rod 19, the second connecting guide block 18 and several conductive windings 17, and finally out from the second terminal 21. When the second connecting guide block 18 slides, the length of the current passing through several conductive windings 17 can be adjusted, thereby adjusting the resistance and current magnitude to achieve brightness adjustment.

[0016] In Example 2, a bidirectional lead screw 3 is rotatably mounted on the inner walls of both sides of the mounting slot 2. The bidirectional lead screw 3 passes through symmetrical first connecting guide blocks 6, and the symmetrical first connecting guide blocks 6 are threaded onto the bidirectional lead screw 3. A first guide rod 10 is fixedly installed on one side of the bidirectional lead screw 3, and the first guide rod 10 passes through the symmetrical first connecting guide blocks 6. A connecting column 4 is fixedly installed on the side wall of the device body 1. A first torsion bar 5 is rotatably installed inside the connecting column 4. One end of the first torsion bar 5 passes through the connecting column 4 and the device body 1 and is fixedly connected to one end of the bidirectional lead screw 3. The rotatably mounted first torsion bar 5 can drive the bidirectional lead screw 3 to rotate clockwise and counterclockwise, thereby causing the first connecting guide blocks 6 on both sides to move towards or repel each other, thus causing the opening plate 9 to open or return to its original position.

[0017] When the brightness needs to be adjusted during the use of the expander, the lighting body 12 is turned on. Then, the second torsion bar 13 is rotated to drive the lead screw 15 to rotate clockwise or counterclockwise, thereby freely adjusting the horizontal movement of the second connecting guide block 18. The second guide rod 19 guides its horizontal movement without following the rotation of the lead screw 15. The current is conducted through the first terminal 20 to the second guide rod 19, the second connecting guide block 18 and several conductive windings 17, and finally exits from the second terminal 21. When the second connecting guide block 18 slides, the length of the current passing through several conductive windings 17 can be adjusted, thereby adjusting the resistance and current magnitude to achieve brightness adjustment.

[0018] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. An intervertebral spacer for minimally invasive spinal surgery, comprising a device body (1), wherein a mounting groove (2) is provided on the device body (1), and symmetrical first connecting guide blocks (6) are provided in the mounting groove (2), and fixing blocks (7) are fixedly installed on one side of each of the symmetrical first connecting guide blocks (6), a spacer rod (8) is fixedly installed at one end of the fixing block (7), and a spacer plate (9) is fixedly installed at one end of the spacer rod (8), characterized in that: The device body (1) has a base (11) fixedly installed on the top, and a lighting lamp body (12) is fixedly installed on the base (11). A second torsion bar (13) is rotatably installed on one side of the base (11). A brightness adjustment mechanism is provided at one end of the second torsion bar (13). The brightness adjustment mechanism is located inside the base (11).

2. The intervertebral spacer for minimally invasive spinal surgery according to claim 1, characterized in that, The inner walls on both sides of the mounting slot (2) are rotatably mounted with a bidirectional screw (3). The bidirectional screw (3) passes through the first connecting guide block (6) symmetrically and the first connecting guide block (6) is threaded onto the bidirectional screw (3). A first guide rod (10) is fixedly provided on one side of the bidirectional screw (3). The first guide rod (10) passes through the first connecting guide block (6) symmetrically.

3. An intervertebral distractor for minimally invasive spinal surgery as recited in claim 1, wherein, A connecting column (4) is fixedly installed on the side wall of the main body (1) of the device. A first torsion bar (5) is rotatably installed inside the connecting column (4). One end of the first torsion bar (5) passes through the connecting column (4) and the main body (1) of the device and is fixedly connected to one end of the bidirectional lead screw (3).

4. The intervertebral distractor for minimally invasive spinal surgery as recited in claim 1, wherein, The brightness adjustment mechanism includes symmetrical fixed seats (14), with a lead screw (15) rotatably mounted between the symmetrical fixed seats (14), and a fixed cylinder (16) fixedly mounted below the lead screw (15), with a number of conductive wires (17) fixedly wound on the surface of the fixed cylinder (16).

5. The intervertebral spacer for minimally invasive spinal surgery according to claim 1, characterized in that, A second connecting guide block (18) is threaded through and installed on the lead screw (15). The inner sides of the bottom two ends of the second connecting guide block (18) are tightly attached to the two sides of a plurality of conductive winding wires (17) on the fixed cylinder (16). A second guide rod (19) is fixedly installed above the lead screw (15). The second guide rod (19) passes through the second connecting guide block (18).

6. The intervertebral spacer for minimally invasive spinal surgery according to claim 1, characterized in that, One end of the second torsion bar (13) passes through the fixed seat (14) on one side and is fixedly connected to one end of the lead screw (15).

7. An intervertebral distractor for minimally invasive spinal surgery as recited in claim 1, wherein, A first terminal (20) is fixedly installed on the side wall near the top of the fixed base (14) on one side, and a second terminal (21) is fixedly installed on the side wall near the bottom of the fixed base (14) on the other side. The first terminal (20) and the second terminal (21) are used to connect the wires inside the base (11).

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