A holder in an orthopedic spinal screw rod system

Abstract

The utility model discloses a holder in an orthopedic spinal nail rod system, comprising a holding rod, one end of the holding rod is connected to a telescopic part, and one end of the telescopic part is connected to an extension rod, a positioning knob is installed at the connection between the extension rod and the telescopic part, a mounting groove is provided inside one end of the extension rod, a right-angle rod is installed on one side of the extension rod, and a docking block is connected to one end of the right-angle rod, and a positioning piece is installed at the connection between the right-angle rod and the extension rod; telescopic blocks are installed on both sides of the hexagonal end, and two-way push rods are installed at both ends of the inner side of the telescopic block, and a telescopic spring is installed at the connection between the elastic block and the hexagonal end. Compared with the existing device, the holder in the orthopedic spinal nail rod system can be stretched with the extension rod through the telescopic part, so that the overall length of the holding rod can be changed as needed, and the installation groove and the docking block facilitate the mutual installation of the extension rod and the right-angle rod, and the right-angle handle can be installed when needed.

Description

Technical Field

[0001] The utility model relates to the technical field of holders, in particular to a holder in an orthopedic spinal screw rod system. Background Art

[0002] The orthopedic spinal screw rod system is a high-precision medical device used for spinal surgery. It uses minimally invasive technology to stabilize the spine by implanting screw rods to treat spinal-related diseases. The system has high precision and can accurately implant screw rods to improve the success rate and effect of the operation. The top wire of the spinal pedicle screw rod is an internal hexagonal structure. During the implantation of the spinal screw rod, holding the screw rod is an indispensable step, so a holder in the orthopedic spinal screw rod system is used.

[0003] A Chinese patent with the authorization announcement number CN204446088U discloses a holder wrench used in an orthopedic spinal nail rod system, including: a holding rod, a locking head and a spring sheet; wherein the holding rod constitutes the main body of the holder wrench, the locking head is fixedly arranged at one end of the holding rod, the cross-section of the locking head is hexagonal in shape and an installation groove is arranged on the periphery, and the spring sheet is fixedly arranged in the above-mentioned installation groove. During use, the spring sheet stuck in the installation groove on the locking head is inserted into the hexagonal inner wall of the top screw along with the locking head as a whole, and the spring sheet is clamped with the inner wall of the hexagonal screw by the rebound effect of the spring sheet, so that the holding and pre-tightening process of the top screw in the operation can be completed quickly and accurately. The utility model has a simple structure and is firmly held, which reduces the risk of surgery and reduces the pain of patients.

[0004] Although the holder in the above-mentioned orthopedic spinal nail rod system has a simple structure and a firm hold, which reduces surgical risks and reduces the patient's pain, the holder wrench is a fixed structure, and the holder cannot be flexibly adjusted according to surgical needs during actual use, thereby reducing its applicability. For this reason, we propose a holder in an orthopedic spinal nail rod system. Utility Model Content

[0005] The purpose of the utility model is to provide a holder in an orthopedic spinal nail rod system to solve the problem in the above background technology that the holder wrench is a fixed structure and cannot be flexibly adjusted according to surgical needs during actual use, thereby reducing the applicability.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a holder in an orthopedic spinal nail rod system, comprising:

[0007] A holding rod, one end of which is connected to a telescopic portion, and one end of which is connected to an extension rod, a positioning knob is installed at the connection between the extension rod and the telescopic portion, a mounting groove is provided inside one end of the extension rod, a right-angle rod is installed on one side of the extension rod, and one end of the right-angle rod is connected to a docking block, and a positioning piece is installed at the connection between the right-angle rod and the extension rod;

[0008] A hexagonal end cap is mounted on one end of the holding rod, telescopic blocks are mounted on both sides of the hexagonal end cap, and bidirectional push rods are mounted on both ends of the inner side of the telescopic block, and an anti-slip patch is mounted on the outer wall of the telescopic block;

[0009] Elastic blocks are installed at the four corners outside the hexagonal end head, and telescopic springs are installed at the connection between the elastic block and the hexagonal end head.

[0010] Preferably, the holding rod forms a tensile structure between the telescopic portion and the extension rod, and the telescopic portion is relatively fixed to the extension rod through a positioning knob.

[0011] Preferably, the extension rod is engaged with the right-angle rod through the installation groove and the docking block, and the position and size of the docking block match the installation groove.

[0012] Preferably, the positioning member and the right-angle rod are engaged with each other, and the positioning member is relatively fixed to the extension rod by bolts.

[0013] Preferably, the positioning member is further provided with:

[0014] The anti-slip cover is installed on the outer side of the positioning piece, and the anti-slip cover is tightly fitted with the positioning piece.

[0015] Preferably, the telescopic blocks are symmetrically distributed about the vertical center line of the hexagonal end, and a telescopic structure is formed between the bidirectional push rod and the telescopic block, and the anti-slip patch is tightly fitted with the telescopic block.

[0016] Preferably, the elastic block forms an elastic structure with the hexagonal end through a telescopic spring, and the outer wall of the telescopic block and the hexagonal end are parallel to each other.

[0017] Compared with the prior art, the utility model provides a holder in an orthopedic spinal nail rod system, which has the following beneficial effects:

[0018] The utility model can stretch with the extension rod through the telescopic part, so that the overall length of the holding rod can be changed according to needs. The extension rod and the right-angle rod are easily installed with each other through the installation groove and the docking block, so that the right-angle handle can be installed when needed, avoiding the problem that the holding device wrench is a fixed structure and the holding device cannot be flexibly adjusted according to surgical needs during actual use, thereby reducing the applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the hexagonal end of the utility model;

[0021] Figure 3 It is a side view structural diagram of the hexagonal end of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the connection between the extension rod and the right-angle rod of the utility model.

[0023] In the figure: 1. holding rod; 2. telescopic part; 3. extension rod; 4. positioning knob; 5. hexagonal end; 6. elastic block; 7. telescopic spring; 8. telescopic block; 9. anti-slip patch; 10. two-way push rod; 11. anti-slip sleeve; 12. right-angle rod; 13. installation groove; 14. positioning piece; 15. docking block. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-3A holder in an orthopedic spinal nail rod system comprises: a holding rod 1, one end of the holding rod 1 is connected to a telescopic part 2, and one end of the telescopic part 2 is connected to an extension rod 3, a positioning knob 4 is installed at the connection between the extension rod 3 and the telescopic part 2, the holding rod 1 forms a stretching structure between the telescopic part 2 and the extension rod 3, and the telescopic part 2 is relatively fixed to the extension rod 3 through the positioning knob 4; the telescopic part 2 can be stretched with the extension rod 3, so that the overall length of the holding rod 1 can be changed as needed; a hexagonal end 5, which is installed at one end of the holding rod 1, both sides of the hexagonal end 5 are installed with telescopic blocks 8, and both ends of the inner side of the telescopic block 8 are installed with bidirectional push rods 10, the telescopic blocks 8 are symmetrically distributed about the vertical center line of the hexagonal end 5, and a telescopic structure is formed between the bidirectional push rod 10 and the telescopic block 8. The structure is as follows: the two-way push rod 10 can drive the telescopic block 8 to telescope with each other, thereby driving the telescopic block 8 to move horizontally, and the hexagonal end 5 and the spinal nail rod can be pressed against each other through the telescopic block 8, and the anti-skid patch 9 can improve the connection firmness between the telescopic block 8 and the inner wall of the spinal nail rod; the outer wall of the telescopic block 8 is installed with an anti-skid patch 9; the anti-skid sleeve 11 is installed on the outside of the positioning piece 14, and the anti-skid sleeve 11 is tightly fitted with the positioning piece 14; the telescopic block 8 is symmetrically distributed about the vertical center line of the hexagonal end 5, and a telescopic structure is formed between the two-way push rod 10 and the telescopic block 8, and the anti-skid patch 9 is tightly fitted with the telescopic block 8. The anti-skid sleeve 11 can improve the protection of the right-angle handle, which can facilitate improving the support firmness of the holder during surgery.

[0026] See also Figure 1 , 3 4. A holder in an orthopedic spinal nail rod system, comprising: an elastic block 6, which is installed at the four corners outside the hexagonal end 5, and a telescopic spring 7 is installed at the connection between the elastic block 6 and the hexagonal end 5; the elastic block 6 forms an elastic structure with the hexagonal end 5 through the telescopic spring 7, and the telescopic block 8 is parallel to the outer wall of the hexagonal end 5; the telescopic spring 7 can make the relative force between the elastic block 6 and the inner wall of the spinal nail rod generate elasticity between the hexagonal end 5 and the inner wall of the spinal nail rod, which is convenient for the stability of the installation of the holder wrench; an installation groove 13 is opened inside one end of the extension rod 3, and a right-angle rod 12 is installed on one side of the extension rod 3, and the right-angle One end of the rod 12 is connected to a docking block 15, and a positioning piece 14 is installed at the connection between the right-angle rod 12 and the extension rod 3; the extension rod 3 is mutually engaged with the right-angle rod 12 through the installation groove 13 and the docking block 15, and the position and size of the docking block 15 match those of the installation groove 13; the installation groove 13 and the docking block 15 facilitate the mutual installation of the extension rod 3 and the right-angle rod 12, so that the right-angle handle can be installed when needed; the positioning piece 14 is mutually engaged with the right-angle rod 12, and the positioning piece 14 is relatively fixed to the extension rod 3 by bolts; the positioning piece 14 can connect the right-angle rod 12 and the extension rod 3 to each other, and the positioning piece 14 can be fixed to the extension rod 3 by bolts.

[0027] Working principle: When using the holder in the orthopedic spinal nail rod system, first adjust the overall length of the holding rod 1 as needed, stretch the telescopic part 2 and the extension rod 3 against each other, and then use the positioning knob 4 to fix the telescopic part 2 and the extension rod 3. If a right-angle handle needs to be installed, the extension rod 3 and the right-angle rod 12 are installed through the installation groove 13 and the docking block 15; then install the positioning piece 14, and then use bolts to fix it, so that the right-angle rod 12 and the extension rod 3 can be connected to each other; then install the hexagonal end 5 into the hexagonal screw hole of the spinal nail rod, and the elastic block 6 can be connected to the spinal rod through the telescopic spring 7. The relative force generated between the inner walls of the nail rod can make the hexagonal end 5 and the inner wall of the spinal nail rod elastic; finally, the two-way push rod 10 is started, and the two-way push rod 10 drives the telescopic block 8 to telescope with each other, thereby driving the telescopic block 8 to move horizontally. The telescopic block 8 can make the hexagonal end 5 and the spinal nail rod press against each other, and at the same time, the anti-slip patch 9 can improve the connection firmness between the telescopic block 8 and the inner wall of the spinal nail rod. During the operation, the anti-slip sleeve 11 improves the protectiveness of the right-angle handle, which is convenient for improving the supporting firmness of the holder during the operation. This is the working principle of the holder in the orthopedic spinal nail rod system.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A holder in an orthopedic spinal screw rod system, characterized in that: include: A holding rod (1), one end of the holding rod (1) is connected to a telescopic part (2), and one end of the telescopic part (2) is connected to an extension rod (3), a positioning knob (4) is installed at the connection between the extension rod (3) and the telescopic part (2), a mounting groove (13) is provided inside one end of the extension rod (3), a right-angle rod (12) is installed on one side of the extension rod (3), and one end of the right-angle rod (12) is connected to a docking block (15), and a positioning piece (14) is installed at the connection between the right-angle rod (12) and the extension rod (3); A hexagonal end cap (5) is mounted on one end of the holding rod (1), telescopic blocks (8) are mounted on both sides of the hexagonal end cap (5), and bidirectional push rods (10) are mounted on both ends of the inner side of the telescopic block (8), and an anti-slip patch (9) is mounted on the outer wall of the telescopic block (8); Elastic blocks (6) are installed at the four corners outside the hexagonal end head (5), and telescopic springs (7) are installed at the connection between the elastic block (6) and the hexagonal end head (5).

2. The holder of an orthopedic spinal nail rod system according to claim 1, characterized in that: The holding rod (1) forms a tensile structure between the telescopic part (2) and the extension rod (3), and the telescopic part (2) is relatively fixed to the extension rod (3) via a positioning knob (4).

3. The holder of an orthopedic spinal screw rod system according to claim 1, characterized in that: The extension rod (3) is mutually engaged with the right-angle rod (12) via the installation groove (13) and the docking block (15), and the position and size of the docking block (15) match those of the installation groove (13).

4. The holder of an orthopedic spinal screw rod system according to claim 1, characterized in that: The positioning member (14) and the right-angle rod (12) are mutually engaged, and the positioning member (14) is relatively fixed to the extension rod (3) by means of bolts.

5. The holder in the orthopedic spinal screw rod system according to claim 1, characterized in that: The positioning member (14) is also provided with: The anti-slip sleeve (11) is installed on the outside of the positioning piece (14), and the anti-slip sleeve (11) is tightly fitted with the positioning piece (14).

6. The holder of an orthopedic spinal screw rod system according to claim 1, characterized in that: The telescopic blocks (8) are symmetrically distributed about the vertical center line of the hexagonal end (5), a telescopic structure is formed between the bidirectional push rod (10) and the telescopic block (8), and the anti-slip patch (9) is tightly fitted with the telescopic block (8).

7. The holder of an orthopedic spinal screw rod system according to claim 1, characterized in that: The elastic block (6) forms an elastic structure with the hexagonal end head (5) through the telescopic spring (7), and the outer wall of the telescopic block (8) and the hexagonal end head (5) are parallel to each other.

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