Thoracolumbar fusion cage holder

Abstract

The utility model relates to the technical field of thoracolumbar fusion cages, in particular to a thoracolumbar fusion cage holder which comprises a fusion cage body, an arc-shaped groove is formed in the fusion cage body, wavy strips are arranged on the outer side of the arc-shaped groove, a through groove is further formed in the fusion cage body, a connector is movably connected in the through groove, and the connector is movably connected with the arc-shaped groove. An arc-shaped positioning piece is movably connected into the connector, a limiting strip is installed on one side of the arc-shaped positioning piece, a threaded groove is formed in the arc-shaped positioning piece, and a lead screw is movably connected into the threaded groove. According to the utility model, the possibility that the lumbar fusion cage needs to be clamped by an instrument in the process of holding the lumbar fusion cage is reduced, the possibility that the lumbar fusion cage slips in the operation process is reduced, the holding and fixing effect of the device on the lumbar fusion cage is improved, the operation is convenient, the effect of convenient operation of the device is also improved, and the lumbar fusion cage can be held more quickly and more accurately. And the device can be accurately placed in a designated area.

Description

Technical Field

[0001] The utility model relates to the technical field of thoracolumbar fusion devices, in particular to a thoracolumbar fusion device holder. Background Art

[0002] Thoracolumbar fusion cage is a device used in thoracolumbar fusion surgery. Its main function is to promote bone healing and spinal stability by fixing and stabilizing the vertebrae. Thoracolumbar fusion cages are available in a variety of designs and materials, such as carbon fiber reinforced PEEK and tantalum alloy. Carbon fiber reinforced PEEK is made by dispersing short carbon fibers in a PEEK-OPTIMA matrix. Its elastic modulus is more similar to that of human bones, which can better solve the problem of stress shielding.

[0003] At present, thoracolumbar fusion devices are inconvenient to install during surgery because of their small size and the need to be accurately placed between the cone bones. The operating space is narrow and the position needs to be constantly adjusted. Most thoracolumbar fusion devices are supported and adjusted, which is inconvenient to adjust and easy to slip. Therefore, a thoracolumbar fusion device holder is proposed. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a thoracolumbar fusion device holder, which overcomes the deficiencies of the prior art and aims to solve the problems in the background technology.

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

[0006] A thoracolumbar fusion device holder comprises a fusion device body, an arcuate groove is provided on the fusion device body, a wavy strip is arranged on the outer side of the arcuate groove, a through groove is also provided on the fusion device body, a connecting head is movably connected in the through groove, an arcuate positioning piece is movably connected in the connecting head, a limiting strip is installed on one side of the arcuate positioning piece, a threaded groove is provided in the arcuate positioning piece, and a screw rod is movably connected in the threaded groove.

[0007] Preferably, the arc-shaped groove is opened through the fusion device body, wave strips are symmetrically arranged on both sides of the fusion device body, and the arc-shaped groove is an elliptical groove.

[0008] Preferably, the through groove is also provided through the fusion device body, the through groove is a circular groove, and a cross is provided between the arc groove and the through groove.

[0009] Preferably, one side of the through slot is connected to a limiting plate, the connecting head is fixed on the top surface of the limiting plate, a holding rod is installed on the bottom surface of the limiting plate, a control handle is provided on the bottom end of the holding rod, and a control button is installed on the control handle.

[0010] Preferably, movable grooves are staggered on both sides of the connecting head, the arc-shaped positioning piece is movably connected in the movable groove, sliding grooves are opened on the top and bottom surfaces inside the movable groove, and the two ends of the limit strip are slidably connected in the sliding grooves and are limited in the sliding grooves.

[0011] Preferably, a motor is installed on the inner side of the connecting head, one end of the screw rod is installed on the output end of the motor, the other end of the screw rod is threadedly connected in the thread groove, and the arc-shaped positioning piece is movably connected in the arc-shaped groove.

[0012] The beneficial effects of the utility model are:

[0013] The utility model can be directly inserted into the fusion device body through the connecting head, the limiting piece can locate the position of the connecting head, and the connecting head can be connected to the fusion device body through the arc-shaped positioning piece to reduce the possibility of slipping, and the arc-shaped positioning piece can be driven to move by the motor and the screw rod, thereby achieving the effect of adaptive connection.

[0014] The utility model reduces the possibility of using instruments to clamp the lumbar fusion device during the operation, reduces the possibility of slippage of the lumbar fusion device during the operation, improves the holding and fixing effect of the device on the lumbar fusion device, is easy to operate, and also improves the effect of convenient operation of the device, and can be placed in a designated area more quickly and accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a thoracolumbar fusion device holder proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of a thoracolumbar fusion device holder proposed by the utility model;

[0017] Figure 3 It is a structural schematic diagram of the connector part;

[0018] Figure 4 It is a schematic diagram of the main structure of the connector;

[0019] Figure 5 It is a structural schematic diagram of the holding rod part;

[0020] Figure 6 for Figure 4 Schematic diagram of the structure of part A.

[0021] In the figure: 1. Fusion device body; 2. Through groove; 3. Wave strip; 4. Arc groove; 5. Holding rod; 6. Control handle; 7. Limiting piece; 8. Connecting head; 9. Limiting strip; 10. Arc positioning piece; 11. Motor; 12. Screw rod; 13. Threaded groove; 14. Slide groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1:

[0024] Reference Figure 1-6 A thoracolumbar fusion device holder comprises a device body 1, an arc groove 4 is provided on the device body 1, the arc groove 4 is penetrated and provided on the device body 1, wave strips 3 are symmetrically arranged on both sides of the device body 1, the arc groove 4 is an elliptical groove, and the outer side of the arc groove 4 is provided with a wave strip 3, a through groove 2 is also provided on the device body 1, the through groove 2 is also penetrated and provided on the device body 1, the through groove 2 is a circular groove, and the arc groove 4 and the through groove 2 are cross-shaped, a connector 8 is movably connected in the through groove 2, an arc positioning piece 10 is movably connected in the connector 8, a limiting strip 9 is installed on one side of the arc positioning piece 10, a threaded groove 13 is provided in the arc positioning piece 10, and a screw rod 12 is movably connected in the threaded groove 13.

[0025] In this embodiment, one side of the through groove 2 is connected to a limiting plate 7, a connecting head 8 is fixed on the top surface of the limiting plate 7, a holding rod 5 is installed on the bottom surface of the limiting plate 7, a control handle 6 is arranged on the bottom end of the holding rod 5, a control button is installed on the control handle 6, movable grooves are staggered on both sides of the connecting head 8, an arc-shaped positioning piece 10 is movably connected in the movable groove, a slide groove 14 is arranged on the top and bottom surfaces of the inner side of the movable groove, both ends of the limiting strip 9 are slidably connected in the slide groove 14, and it is limited in the slide groove 14, a motor 11 is installed on the inner side of the connecting head 8, one end of the screw rod 12 is installed on the output end of the motor 11, and the other end of the screw rod 12 is threadedly connected in the threaded groove 13, and the arc-shaped positioning piece 10 is movably connected in the arc groove 4.

[0026] Working principle: When in use, insert the connecting head 8 into the through groove 2, and then press the button on the control handle 6 to drive the motor 11 to rotate. The motor 11 rotates the screw rod 12, and the arc-shaped positioning piece 10 will extend out and connect to the arc-shaped groove 4. Then, turn the wavy strip 3 side up and insert it into the designated area of ​​the patient. Then press the button to control the motor 11 to flip and retract the arc-shaped positioning piece 10, and then move the connecting head 8 out.

[0027] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 indirectly connected 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 according to specific circumstances.

[0028] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A thoracolumbar fusion device holder, characterized in that: include: A fusion device body (1), wherein an arc-shaped groove (4) is provided on the fusion device body (1), and a wavy strip (3) is arranged on the outer side of the arc-shaped groove (4). The fusion device body (1) is also provided with a through groove (2), a connecting head (8) is movably connected in the through groove (2), an arc-shaped positioning piece (10) is movably connected in the connecting head (8), a limiting strip (9) is installed on one side of the arc-shaped positioning piece (10), a threaded groove (13) is provided in the arc-shaped positioning piece (10), and a screw rod (12) is movably connected in the threaded groove (13).

2. A thoracolumbar fusion cage holder according to claim 1, characterized in that: The arc-shaped groove (4) is formed through the fusion device body (1), and wave strips (3) are symmetrically arranged on both sides of the fusion device body (1), and the arc-shaped groove (4) is an elliptical groove.

3. A thoracolumbar fusion cage holder according to claim 2, characterized in that: The through groove (2) is also provided through the fusion device body (1); the through groove (2) is a circular groove; and the arc groove (4) and the through groove (2) are provided in the form of a cross.

4. A thoracolumbar fusion cage holder according to claim 3, characterized in that: One side of the through slot (2) is connected to a limiting plate (7), the connecting head (8) is fixed on the top surface of the limiting plate (7), a holding rod (5) is mounted on the bottom surface of the limiting plate (7), a control handle (6) is arranged at the bottom end of the holding rod (5), and a control button is mounted on the control handle (6).

5. A thoracolumbar fusion cage holder according to claim 4, characterized in that: Movable grooves are staggeredly provided on both sides of the connector (8), the arc-shaped positioning piece (10) is movably connected in the movable groove, a slide groove (14) is provided on the top and bottom surfaces of the inner side of the movable groove, and the two ends of the limit strip (9) are slidably connected in the slide groove (14), and are limited in the slide groove (14).

6. A thoracolumbar fusion cage holder according to claim 5, characterized in that: A motor (11) is installed on the inner side of the connector (8), one end of the screw rod (12) is installed on the output end of the motor (11), the other end of the screw rod (12) is threadedly connected in the thread groove (13), and the arc-shaped positioning piece (10) is movably connected in the arc-shaped groove (4).

Images