Universal assembled T-handle screwdriver for orthopedic surgery

Abstract

The utility model discloses a universal assembled T-handle screwdriver for orthopedic surgery, which comprises a screwdriver handle and a fixed grab handle, an insertion hole is arranged below the screwdriver handle, the upper end of a screwdriver head is arranged in the insertion hole, a screwdriver handle limiting hole is arranged on the screwdriver handle, a screwdriver head limiting hole is arranged on the screwdriver head, and the fixed grab handle is arranged on the screwdriver handle. One end of the fixed grab handle penetrates through the knife handle limiting hole and the knife head limiting hole and then is connected with the auxiliary grab handle. According to the T-handle screwdriver, on the premise that the stability is guaranteed, simple disassembly of the screwdriver head in an operation is achieved, the workload of disinfection before the operation is reduced, and the screwdriver is more concise and convenient to assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a universal assembled T-handle screwdriver used for orthopedic surgery. Background Art

[0002] In existing surgeries, screwdrivers are mostly integrated screwdrivers, and corresponding screwdrivers are generally equipped before the operation according to the screws that need to be removed during the operation. However, there are many types of screws themselves, ranging from 1.5 to less than 8mm in terms of caliber; there are various types of patterns such as triangle, cross, plum blossom, etc. In most cases, the specific model of the screw is unknown before the bone screw is removed. Therefore, it is necessary to prepare more screwdrivers of different models before the operation. This leads to a significant increase in the amount of preparation work before the operation, and it is more troublesome to pick up during the operation. However, the existing replaceable screwdrivers are often not as strong as integrated screwdrivers, and are prone to shaking or even loosening and falling off during operation. In addition, since the screwdriver handle itself is designed to be cylindrical, it is difficult to exert force during surgery and is prone to slippage. Utility Model Content

[0003] The purpose of the utility model is to provide a universal assembled T-handle screwdriver for orthopedic surgery to solve the problems mentioned in the background technology. To achieve the above purpose, the utility model provides the following technical solutions: a universal assembled T-handle screwdriver for orthopedic surgery, comprising a screwdriver handle and a fixed handle, an insertion hole is provided at the bottom of the screwdriver handle, the upper end of the screwdriver head is installed inside the insertion hole, a handle limiting hole is provided on the screwdriver handle, a bit limiting hole is provided on the screwdriver head, and one end of the fixed handle passes through the handle limiting hole and the bit limiting hole and is connected to an auxiliary handle.

[0004] Preferably, the screwdriver handle comprises a cylindrical base, the front and rear sides of the cylindrical base are provided with flat surfaces, the insertion hole is opened at the lower end of the cylindrical base, and the opening of the handle limiting hole is located on the flat surface.

[0005] Preferably, the screwdriver head includes an upper end and a lower end, the lower end is connected to the bottom of the upper end, the lower end is cylindrical as a whole, a cutter head is provided at the bottom of the lower end, the upper end is cubical, the cutter head limiting hole is opened on the upper end, and the upper end is installed inside the insertion hole.

[0006] Preferably, the fixed handle includes a handle end, the right side of the handle end is coaxially connected to a pin end, the pin end is connected to a threaded end, and the cross-sectional shape of the pin end corresponds to the structure of the tool handle limiting hole and the tool head limiting hole.

[0007] Preferably, the auxiliary handle is a cylindrical structure, a threaded hole is opened in the middle of the auxiliary handle, and the threaded hole is threadedly connected to the threaded end.

[0008] Preferably, the handle limiting hole and the tool head limiting hole are both square openings.

[0009] Preferably, the insertion hole is in a cubic shape.

[0010] The technical effects and advantages of the utility model are as follows: the T-handle screwdriver realizes the easy disassembly of the screwdriver head during the operation while ensuring stability, reduces the workload of preoperative disinfection, and makes the screwdriver assembly more concise and convenient. The insertion hole is designed as a cubic slide groove to prevent the screwdriver head from rotating in the handle, and the pin end of the fixed handle matches the opening of the handle limit hole and the bit limit hole, which prevents the screwdriver head from sliding downward after insertion. Therefore, once the screwdriver head is installed in place, it will not slide, ensuring the same stability as the integrated screwdriver; the pin end and the handle limit hole and the bit limit hole adopt a square structure to prevent the fixed handle from rotating during use; the thread in the auxiliary handle ensures that the fixed handle will not fall out and is easy to disassemble; at the same time, the entire screwdriver is T-shaped, which greatly reduces the possibility of hand slipping when using the screwdriver, making the hand feel more comfortable. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is an exploded view of the utility model;

[0012] Figure 2 It is the front view of the assembly diagram of the utility model.

[0013] In the figure, 1. screwdriver handle; 2. fixed handle; 3. screwdriver head; 4. handle limiting hole; 5. head limiting hole; 6. auxiliary handle; 7. columnar base; 8. flat surface; 9. upper end; 10. lower end; 11. head; 12. handle end; 13. pin end; 14. threaded end; 15. threaded hole. DETAILED DESCRIPTION

[0014] In order to make the technical means for realizing the utility model, creative features, objectives and effects easy to understand, the utility model is further explained below in conjunction with specific diagrams. In the description of the utility model, it should be noted that, unless otherwise clearly stipulated 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, an integral connection or a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two components.

[0015] Example

[0016] like Figure 1 and Figure 2A universal assembled T-handle screwdriver for orthopedic surgery is shown, comprising a screwdriver handle 1 and a fixed handle 2. An insertion hole is provided at the bottom of the screwdriver handle 1, and the upper end of a screwdriver head 3 is installed inside the insertion hole. A handle limiting hole 4 is provided on the screwdriver handle 1, and a bit limiting hole 5 is provided on the screwdriver head 3. One end of the fixed handle 2 passes through the handle limiting hole 4 and the bit limiting hole 5 and is then connected to an auxiliary handle 6.

[0017] Among them, the screwdriver handle 1 includes a cylindrical base 7, the cylindrical base 7 has a diameter of 2.5 cm and a length of 6 cm, and a flat surface 8 is axially arranged on the front and rear sides of the cylindrical base 7. The insertion hole is cubic in shape and is opened at the lower end of the cylindrical base 7. The long and high surfaces are parallel to the flat surface 8, and are 5.5 cm long, 0.75 cm wide, and 1.5 cm high. The handle limiting hole 4 is a square opening, and the opening is located on the flat surface 8. The diagonals of the upper and lower corners are parallel to the axis, and the center is 2 cm away from the top and 1.25 cm away from the side end.

[0018] Among them, the screwdriver head 3 includes an upper end 9 and a lower end 10, the lower end 10 is connected to the bottom of the upper end 9, the lower end 10 is cylindrical as a whole, and a cutter head 11 is provided at the bottom of the lower end 10. The diameter of the lower end 10 changes according to the diameter of the cutter head 11. The center of the lower end 10 is in the middle of the bottom plane of the upper end 9. The cylinder is 12 cm long and the cutter head is 0.5 cm long; the upper end 9 is in the shape of a cube, the cube is 5.5 cm long, 0.75 cm wide and 1.5 cm high; the cutter head limiting hole 5 is a square opening, opened on the upper end 9, the side length of the square is 1 cm, the center is 1.5 cm from the top and 0.75 cm from the side; the upper end 9 is installed inside the insertion hole.

[0019] Among them, the fixed handle 2 includes a handle end 12, the right side of the handle end 12 is coaxially connected to the pin end 13, and the pin end 13 is connected to the threaded end 14; the handle end 12 is a cylindrical structure, with a diameter of 2 cm and a length of 2 cm; the pin end 13 is a cubic structure, the bottom surface is a square, the side length is 1 cm, the cube is 2 cm long, and the cross-sectional shape corresponds to the structure of the handle limiting hole 4 and the tool head limiting hole 5; the threaded end 14 is a cylindrical structure, with a diameter of 1 cm, a length of 1.9 cm, and 6 threads.

[0020] The auxiliary handle 6 is a cylindrical structure with a diameter of 2 cm and a length of 2 cm. A threaded hole 15 is opened in the middle of the auxiliary handle 6 . The threaded hole 15 has a diameter of 1 cm and a depth of 1.9 cm. The threaded hole 15 is threadedly connected to the threaded end 14 .

[0021] The process flow and working principle of the utility model are as follows: before the operation, the screwdriver head 3 is boxed and sterilized, and during the operation, the screwdriver head 3 is selected according to the mark, and the screwdriver head 3 is inserted into the screwdriver handle 1 along the insertion hole. Then, the end of the fixed handle 2 is passed through the screwdriver handle 1 along the square handle limiting hole 4 and the head limiting hole 5, and the auxiliary handle 6 is tightened through the threaded end 14 and the threaded hole 15. When the head needs to be replaced, the above operation can be reversed to complete the disassembly.

[0022] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A universal assembled T-handle screwdriver for orthopedic surgery, comprising a screwdriver handle and a fixed grip, characterized in that: An insertion hole is provided below the screwdriver handle, the upper end of the screwdriver head is installed inside the insertion hole, a handle limiting hole is provided on the screwdriver handle, a bit limiting hole is provided on the screwdriver head, and one end of the fixed handle passes through the handle limiting hole and the bit limiting hole and is connected to the auxiliary handle.

2. A universal assembled T-handle screwdriver for orthopedic surgery according to claim 1, characterized in that: The screwdriver handle comprises a cylindrical base, the front and rear sides of the cylindrical base are provided with flat surfaces, the insertion hole is opened at the lower end of the cylindrical base, and the opening of the handle limiting hole is located on the flat surface.

3. A universal assembled T-handle screwdriver for orthopedic surgery according to claim 2, characterized in that: The screwdriver head includes an upper end and a lower end, the lower end is connected to the bottom of the upper end, the lower end is cylindrical as a whole, a cutter head is provided at the bottom of the lower end, the upper end is cubic, the cutter head limiting hole is opened on the upper end, and the upper end is installed inside the insertion hole.

4. A universal assembled T-handle screwdriver for orthopedic surgery according to claim 3, characterized in that: The fixed handle comprises a handle end, the right side of the handle end is coaxially connected to a pin end, the pin end is connected to a threaded end, and the cross-sectional shape of the pin end corresponds to the structure of the tool handle limiting hole and the tool head limiting hole.

5. A universal assembled T-handle screwdriver for orthopedic surgery according to claim 4, characterized in that: The auxiliary handle is a cylindrical structure, a threaded hole is opened in the middle of the auxiliary handle, and the threaded hole is threadedly connected to the threaded end.

6. A universal assembled T-handle screwdriver for orthopedic surgery according to claim 1, characterized in that: The handle limiting hole and the cutter head limiting hole are both square openings.

7. A universal assembled T-handle screwdriver for orthopedic surgery according to claim 1, characterized in that: The insertion hole is in a cubic shape.

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