Universal connector for internal fixation of spine

Abstract

The utility model discloses a universal connector for internal fixation of a spinal column, which belongs to the field of medical instruments and comprises a mounting block, a fixing block is mounted above the mounting block through a mounting pad, a first fixing groove is formed in the left side surface of the fixing block, a supporting column is fixedly connected to the inner wall of the first fixing groove, and a spherical clamping block is arranged in the device, so that the supporting column is fixed to the mounting block. Under the cooperation of a second fixing groove and a supporting column, a connecting rod and a first connecting rod in the device can achieve the effect of universal rotation, and under the cooperation of a first fixing groove and a clamping sleeve arranged in the device, the second fixing groove and a ball clamping block can be covered with the clamping sleeve, so that the second fixing groove and the ball clamping block are separated from blood clots or other impurities, and the blood clots or other impurities are prevented from entering the blood clots or other impurities. The device can provide a better using effect for a patient, and therefore the problem that when an existing device is used, due to the fact that the device is installed in the body, blood or other objects in the body easily enter a universal ball, and the rotating effect of the device is poor is effectively solved through the device.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to a spinal internal fixation universal connector. Background Art

[0002] The spinal internal fixation universal connector system is generally composed of pedicle screws, connecting rods, and transverse connectors. During the operation, the pedicle screws are first screwed into the vertebral body at the pedicles on both sides of the vertebral body, and then the connecting rods and pedicle screws are fixed. After the installation on both sides is completed, the transverse connector is installed between the two connecting rods. The function of the transverse connector is to connect and fix the two screw-rod systems installed on both sides of the spine together to achieve a stable fixation effect.

[0003] A Chinese patent with publication number CN109602486B discloses a spinal internal fixation universal connector, including a pedicle screw and a connecting rod, wherein two connecting rods are provided, and the surfaces of the two connecting rods are provided with cross connectors, the surfaces of the connecting rods are provided with U-bolts, and the bottom of the U-bolts is fixedly connected to a universal ball, the bottom of the surface of the universal ball is movably connected to a universal shaft, and the bottom of the universal shaft is fixedly connected to a connecting portion, but there are still some shortcomings in the above patent. When the existing device is used, the rotation effect is usually achieved through the universal ball, but because it is installed in the body, it is easy for blood or other objects in the body to enter the universal ball, resulting in poor rotation effect. Therefore, a person skilled in the art provides a spinal internal fixation universal connector to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to provide a spinal internal fixation universal connector to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A spinal internal fixation universal connector comprises a mounting block, a fixing block is installed on the top of the mounting block through a mounting pad, a first fixing groove is opened on the left side surface of the fixing block, a support column is fixedly connected to the inner wall of the first fixing groove, a second fixing groove is opened on the right end of the support column, a spherical clamping block is clamped inside the second fixing groove, a connecting rod is fixedly connected to the outer surface of the spherical clamping block, a clamping sleeve is clamped inside the first fixing groove, the right ends of the connecting rod and the right ends of the clamping sleeve are fixedly connected to a connecting plate, a connecting head is installed on the right end of the connecting plate, and the right end of the connecting head is fixedly connected to the first connecting rod.

[0007] As a further solution of the utility model: a through hole is opened on the right side surface of the mounting block, and a second connecting rod is placed inside the through hole.

[0008] As a further solution of the utility model: a fixing bolt is provided on the front side of the mounting block, and a fixing hole is connected to the inner thread of the fixing bolt.

[0009] As a further solution of the utility model: a connecting block is fixedly connected to the left side of the fixing block, and a connecting groove is provided on the left side of the connecting block.

[0010] As a further solution of the utility model: a first threaded groove is opened on the right side of the connecting plate, a first threaded rod is fixedly connected to the left side of the connecting head, the first threaded rod is threadedly connected to the first threaded groove, and two first nut sleeves are sleeved on the outer surface of the connecting head, and a gasket is placed between the two first nut sleeves.

[0011] As a further solution of the utility model: a second threaded groove is formed on the upper surface of the mounting block, a second threaded rod is fixedly connected to the bottom surface of the fixing block, and the second threaded rod is threadedly connected to the second threaded groove.

[0012] As a further solution of the utility model: a fixing silver needle is fixedly connected to the bottom surface of the mounting block, and a second nut sleeve is sleeved on the outer surface of the fixing silver needle.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model discloses a spinal internal fixation universal connector. Through the spherical clamping block provided in the device, under the cooperation of the second fixing groove and the support column, the connecting rod and the first connecting rod in the device can achieve the effect of universal rotation. Through the cooperation of the first fixing groove and the clamping sleeve provided in the device, the second fixing groove and the spherical clamping block can be covered in the interior of the clamping sleeve, thereby isolating them from blood clots or other impurities, so that the device can provide a better use effect for patients. Therefore, the device effectively solves the problem that when the existing device is used, blood or other objects in the body are easily caused to enter the universal ball due to being installed in the body, resulting in poor rotation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of a spinal internal fixation universal connector;

[0016] Figure 2 It is a schematic diagram of the front cross-section structure of a spinal internal fixation universal connector;

[0017] Figure 3 A universal connector for spinal internal fixation Figure 2 The enlarged structural diagram at A in the middle;

[0018] Figure 4The figure is a schematic diagram of the side section structure of a spinal internal fixation universal connector.

[0019] In the figure: 1. mounting block; 2. connecting block; 3. connecting groove; 4. fixing hole; 5. second nut sleeve; 6. fixing block; 7. first nut sleeve; 8. connector; 9. first connecting rod; 10. second connecting rod; 11. fixing bolt; 12. fixing silver needle; 13. first fixing groove; 14. clamping sleeve; 15. connecting rod; 16. second fixing groove; 17. supporting column; 18. mounting pad; 19. second threaded groove; 20. second threaded rod; 21. ball clamp block; 22. connecting plate; 23. gasket; 24. first threaded groove; 25. first threaded rod; 26. through hole. DETAILED DESCRIPTION

[0020] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0022] See also Figures 1 to 4In the embodiment of the utility model, a spinal internal fixation universal connector includes a mounting block 1, a fixing block 6 is installed above the mounting block 1 through a mounting pad 18, a first fixing groove 13 is opened on the left side of the fixing block 6, a support column 17 is fixedly connected to the inner wall of the first fixing groove 13, a second fixing groove 16 is opened on the right end of the support column 17, a ball block 21 is clamped inside the second fixing groove 16, a connecting rod 15 is fixedly connected to the outer surface of the ball block 21, a clamping sleeve 14 is clamped inside the first fixing groove 13, and the right end of the connecting rod 15 and the right end of the clamping sleeve 14 are fixedly connected together There is a connecting plate 22, and a connecting head 8 is installed on the right end of the connecting plate 22. The right end of the connecting head 8 is fixedly connected to the first connecting rod 9. Through the spherical block 21 provided in the device, with the cooperation of the second fixed groove 16 and the support column 17, the connecting rod 15 and the first connecting rod 9 in the device can achieve a universal rotation effect, and through the cooperation of the first fixed groove 13 and the clamping sleeve 14 provided in the device, the second fixed groove 16 and the spherical block 21 can be covered in the interior of the clamping sleeve 14, thereby isolating them from blood clots or other impurities, so that the device can provide better use effect for patients.

[0023] A through hole 26 is provided on the right side of the mounting block 1, and a second connecting rod 10 is placed inside the through hole 26. A fixing bolt 11 is provided on the front side of the mounting block 1, and a fixing hole 4 is connected to the internal thread of the fixing bolt 11. The left side of the fixing block 6 is fixedly connected to the connecting block 2, and a connecting groove 3 is provided on the left side of the connecting block 2 to facilitate fixing the second connecting rod 10 in the device.

[0024] A first threaded groove 24 is provided on the right side surface of the connecting plate 22, and a first threaded rod 25 is fixedly connected to the left side surface of the connecting head 8, and the first threaded rod 25 is threadedly connected to the first threaded groove 24. The outer surface of the connecting head 8 is sleeved with two first nut sleeves 7, and a gasket 23 is placed between the two first nut sleeves 7. A second threaded groove 19 is provided on the upper surface of the mounting block 1, and a second threaded rod 20 is fixedly connected to the bottom surface of the fixing block 6, and the second threaded rod 20 is threadedly connected to the second threaded groove 19. A fixing silver needle 12 is fixedly connected to the bottom surface of the mounting block 1, and the outer surface of the fixing silver needle 12 is sleeved with a second nut sleeve 5. Through the multiple nut sleeves provided, the connecting block 2 in the device can be conveniently tightened.

[0025] The working principle of the utility model is: when using the spinal internal fixation universal connector, the staff first places the device in a suitable position, and then fixes the mounting block 1 in the device on the patient's spine through the fixing silver needle 12 in the device, and then installs the second connecting rod 10 through the provided fixing bolts 11 and fixing holes 4, so that the second connecting rod 10 connects multiple devices, and then connects the first connecting rod 9 in the device to the device through the provided connecting plate 22 and connecting head 8, so that the device can be used, and finally connects the multiple devices through the provided connecting block 2 and connecting groove 3, so that they can be combined into a whole and installed on the patient's spine.

[0026] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and utility model concept of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, so it is intended to include all changes that fall within the meaning and scope of the equivalent elements of the claims in the utility model. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A spinal internal fixation universal connector, comprising a mounting block (1), characterized in that: A fixing block (6) is installed above the mounting block (1) via a mounting pad (18); a first fixing groove (13) is provided on the left side surface of the fixing block (6); a support column (17) is fixedly connected to the inner wall of the first fixing groove (13); a second fixing groove (16) is provided at the right end of the support column (17); a spherical clamping block (21) is clamped inside the second fixing groove (16); a connecting rod (15) is fixedly connected to the outer surface of the spherical clamping block (21); a clamping sleeve (14) is clamped inside the first fixing groove (13); the right ends of the connecting rod (15) and the right ends of the clamping sleeve (14) are fixedly connected to a connecting plate (22); a connecting head (8) is installed at the right end of the connecting plate (22); and a first connecting rod (9) is fixedly connected to the right end of the connecting head (8).

2. A spinal internal fixation universal connector according to claim 1, characterized in that: A through hole (26) is provided on the right side surface of the mounting block (1), and a second connecting rod (10) is placed inside the through hole (26).

3. The spinal internal fixation universal connector according to claim 1, characterized in that: A fixing bolt (11) is provided on the front side of the mounting block (1), and the fixing bolt (11) is internally threadedly connected to a fixing hole (4).

4. The spinal internal fixation universal connector according to claim 1, characterized in that: The left side surface of the fixed block (6) is fixedly connected to a connecting block (2), and the left side surface of the connecting block (2) is provided with a connecting groove (3).

5. The spinal internal fixation universal connector according to claim 1, characterized in that: A first thread groove (24) is formed on the right side of the connecting plate (22); a first threaded rod (25) is fixedly connected to the left side of the connecting head (8); the first threaded rod (25) is threadedly connected to the first thread groove (24); two first nut sleeves (7) are sleeved on the outer surface of the connecting head (8); a gasket (23) is placed between the two first nut sleeves (7).

6. The spinal internal fixation universal connector according to claim 1, characterized in that: The upper surface of the mounting block (1) is provided with a second threaded groove (19), the bottom surface of the fixing block (6) is fixedly connected with a second threaded rod (20), and the second threaded rod (20) is threadedly connected to the second threaded groove (19).

7. The spinal internal fixation universal connector according to claim 1, characterized in that: A fixing silver pin (12) is fixedly connected to the bottom surface of the mounting block (1), and a second nut sleeve (5) is sleeved on the outer surface of the fixing silver pin (12).

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