Medullary cavity file for replacement surgery

Abstract

The utility model relates to the field of medullary cavity files, in particular to a medullary cavity file for replacement surgery, which comprises a file handle body, a medullary cavity file body is inserted on the file handle body, a fixing piece is fixedly mounted on the medullary cavity file body, and the fixing piece and the file handle body are limited through a limiting insertion rod assembly. A limiting inserting groove is formed in the position, located on the limiting inserting rod assembly, in the file handle body, an auxiliary assembly is arranged on the position, located on one side of the limiting inserting groove, in the file handle body, and the file handle body and the limiting inserting rod assembly are limited through the auxiliary assembly. According to the medullary cavity file, the auxiliary assembly, the limiting cover cap and the limiting insertion rod assembly are arranged in a matched mode, the file handle body and the medullary cavity file body can be rapidly disassembled and assembled, the normal operation process is convenient and fast, the disassembling and assembling time is greatly shortened, and meanwhile disassembling and assembling operation can be conducted without other extra tools.

Description

Technical Field

[0001] This utility model relates to the field of medullary canal file technology, and in particular to a medullary canal file for replacement surgery. Background Technology

[0002] The medullary file used in replacement surgery is a key tool for preparing the medullary cavity to accommodate the prosthesis stem. Furthermore, the connection between the medullary file and its handle is a crucial step in the procedure.

[0003] In most existing medullary files, the file is connected to a handle for subsequent operations such as striking and rotating. The handle is often connected to the file using bolts or other fasteners. This connection method is cumbersome and requires additional tools for assembly and disassembly, making the process time-consuming. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a medullary canal file for replacement surgery.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A canal file for replacement surgery includes a file handle body, a canal file body inserted into the file handle body, and a fixing member fixedly installed on the canal file body. The fixing member and the file handle body are limited by a limiting plug assembly. A limiting slot is formed in the file handle body at the limiting plug assembly, and an auxiliary component is provided in the file handle body on one side of the limiting slot. The file handle body and the limiting plug assembly are limited by the auxiliary component.

[0007] The auxiliary component includes a sliding block and an auxiliary movable component. Multiple auxiliary rods are installed at equal intervals on the side of the sliding block near the limiting slot. Both ends of the side of the sliding block away from the limiting slot are connected to the file handle body through a spring body. A limiting ring is rotatably installed inside the sliding block, and one side of the movable rod is connected to the limiting ring.

[0008] Furthermore, in a preferred configuration, the auxiliary moving component includes a moving rod, one side of which is connected to a limiting ring, and a moving hole is provided in the sliding block at the moving rod.

[0009] Furthermore, in a preferred configuration, first extension blocks are symmetrically installed at both ends of the outer wall of the movable rod on the side near the limiting ring, third extension blocks are symmetrically installed at both ends of the outer wall of the movable rod on the side away from the limiting ring, and second extension blocks are symmetrically arranged at both ends of the outer wall of the movable rod on the side of the third extension block, with the first extension blocks, second extension blocks, and third extension blocks all in a parallel state.

[0010] Furthermore, in a preferred configuration, a limiting groove is provided inside the file handle body at the sliding block, and both sides of the spring body are respectively connected to the sliding block and the inner wall of the limiting groove on the side away from the limiting slot.

[0011] Furthermore, in a preferred configuration, the limiting insert assembly includes a fixing block, with multiple limiting inserts evenly spaced on one side of the fixing block, and a first insertion hole penetrating through the fixing block at the location of the auxiliary insert.

[0012] Furthermore, in a preferred configuration, T-shaped fasteners are symmetrically installed on both sides of the fastener, and a locking groove is provided at one end of the file handle body at the fastener, and a second insertion hole is provided inside the fastener at the limiting insertion rod.

[0013] Furthermore, in a preferred configuration, the file handle body has an inlet / outlet groove located on one side of the limiting groove and at the corresponding first extension block, and a movable cavity is provided in the middle of the inlet / outlet groove, wherein the cross-sectional area of ​​the movable cavity is not less than the cross-sectional area of ​​the auxiliary movable component.

[0014] Furthermore, in a preferred configuration, a limiting cap is screwed onto one side of the file handle body outside the inlet / outlet slide groove, and an installation groove is provided on one side of the file handle body at the limiting cap, and a placement groove is provided on one end of the installation groove on one side of the file handle body, with the cross-sectional area of ​​the placement groove being larger than that of the limiting cap.

[0015] The beneficial effects of this utility model are as follows:

[0016] In this utility model, by cooperating with auxiliary components, limiting caps and limiting rod components, the file handle body and the medullary file body can be quickly disassembled and assembled. The normal operation process is convenient and the disassembly and assembly time is greatly shortened. At the same time, no additional tools are required for disassembly and assembly. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a canal file for replacement surgery proposed in this utility model;

[0018] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0019] Figure 3 This is a schematic diagram of a partially dissected cross-section of a canal file for replacement surgery proposed in this utility model;

[0020] Figure 4 for Figure 3 Enlarged structural diagram at point B;

[0021] Figure 5 This is a schematic diagram of the cross-sectional structure of the file handle body;

[0022] Figure 6 for Figure 5 Enlarged structural diagram at point C;

[0023] Figure 7 A schematic diagram of the structure for splitting auxiliary components.

[0024] In the figure: 1. Medullary canal file body; 11. Fixing component; 2. File handle body; 21. Placement groove; 22. Inlet / outlet slide groove; 23. Movable cavity; 3. Limiting rod assembly; 4. Limiting cap; 5. Spring body; 6. Auxiliary assembly; 61. Auxiliary rod; 62. Sliding block; 63. Movable rod; 64. First extension block; 65. Second extension block; 66. Third extension block. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Reference Figure 1-3 A canal file for replacement surgery includes a file handle body 2, a canal file body 1 inserted into the file handle body 2, and a fixing member 11 fixedly installed on the canal file body 1. The fixing member 11 and the file handle body 2 are limited by a limiting rod assembly 3. A limiting slot is opened in the file handle body 2 at the limiting rod assembly 3, and an auxiliary component 6 is provided in the file handle body 2 on one side of the limiting slot. The file handle body 2 and the limiting rod assembly 3 are limited by the auxiliary component 6.

[0027] The auxiliary component 6 includes a sliding block 62 and an auxiliary moving component. Multiple auxiliary rods 61 are installed at equal intervals on the side of the sliding block 62 near the limiting slot. Both ends of the side of the sliding block 62 away from the limiting slot are connected to the file handle body 2 through the spring body 5. A limiting ring is rotatably installed inside the sliding block 62. One side of the moving rod 63 is connected to the limiting ring.

[0028] Furthermore, the auxiliary moving component includes a moving rod 63, one side of which is connected to a limiting ring, and a moving hole is provided in the sliding block 62 at the moving rod.

[0029] Furthermore, the two ends of the outer wall of the movable rod 63 near the limiting ring are symmetrically equipped with first extension blocks 64, the two ends of the outer wall of the movable rod 63 away from the limiting ring are symmetrically equipped with third extension blocks 66, and the two ends of the outer wall of the movable rod 63 located on the side of the third extension block 66 are symmetrically equipped with second extension blocks 65. The first extension blocks 64, second extension blocks 65 and third extension blocks 66 are all in a parallel state.

[0030] Meanwhile, a limiting groove is provided inside the file handle body 2 at the sliding block 62, and the two sides of the spring body 5 are respectively connected to the sliding block 62 and the inner wall of the limiting groove on the side away from the limiting slot.

[0031] Meanwhile, the limiting rod assembly 3 includes a fixing block, on one side of which multiple limiting rods are installed at equal intervals, and a first insertion hole is provided through the fixing block at the auxiliary rod 61. An auxiliary groove is provided at equal intervals in the middle of one end of the fixing block.

[0032] Furthermore, T-shaped fasteners are symmetrically installed on both sides of the fastener 11, and a locking groove is provided at one end of the file handle body 2 at the fastener 11, and a second insertion hole is provided inside the fastener 11 at the limiting insertion rod.

[0033] Furthermore, the file handle body 2 has an inlet / outlet groove 22 located on one side of the limiting groove and at the corresponding first extension block 64, and a movable cavity 23 is provided in the middle of the inlet / outlet groove 22, and the cross-sectional area of ​​the movable cavity 23 is not less than the cross-sectional area of ​​the auxiliary movable component.

[0034] Furthermore, a limiting cap 4 is screwed onto one side of the file handle body 2 outside the inlet / outlet slide groove, and an installation groove is provided on one side of the file handle body 2 at the limiting cap 4. A placement groove 21 is provided on one end of the installation groove on one side of the file handle body 2, and the cross-sectional area of ​​the placement groove 21 is larger than the cross-sectional area of ​​the limiting cap 4.

[0035] In this embodiment, by cooperating with the auxiliary component 6, the limiting cap 4, and the limiting rod component 3, the file handle body and the medullary file body can be quickly disassembled and assembled. The normal operation process is convenient and the disassembly and assembly time is greatly shortened. At the same time, no additional tools are required for disassembly and assembly.

[0036] When it is necessary to disassemble the medullary canal file body, loosen the limiting cap 4 by screwing it on, and take it out and place it in the placement slot 21. Then, hold the third extension block 66 and move it away from the file handle body 2 until the first extension block 64 is located outside the file handle body 2. Before moving the third extension block 66, ensure that the third extension block 66 is parallel to the inlet and outlet slide. After the first extension block 64 is located outside the file handle body 2, hold the third extension block 66 and rotate it until the third extension block 66 is in an intersecting state with the inlet and outlet slide. At this time, the spring body 5 is in a deformed state.

[0037] Then, insert your hand into the auxiliary groove, grasp the limiting rod assembly 3 and remove it, and then you can disassemble and replace the medullary canal file body 1.

[0038] Next, insert the replaced medullary file body 1 into the file handle body 2, and insert the limiting rod assembly 3. Then, hold the third extension block 66 and rotate it until the third extension block 66 is parallel to the inlet and outlet slide. The sliding block 62 moves towards the limiting rod assembly 3 and is inserted under the action of the spring body 5. Then, hold the third extension block 66 and pull the movable rod 63 until the second extension block 65 is located in the movable cavity 23, and rotate it until the third extension block 66 is in an interlaced state with the inlet and outlet slide. Then, hold the limiting cap 4 and screw it into the file handle body 2 to complete the assembly between the file handle body and the medullary file body.

[0039] In this utility model, by cooperating with the auxiliary component 6, the limiting cap 4 and the limiting rod component 3, the file handle body and the medullary file body can be quickly disassembled and assembled. The normal operation process is convenient and the disassembly and assembly time is greatly shortened. At the same time, no additional tools are required for disassembly and assembly.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A canal file for replacement surgery, comprising a file handle body (2), characterized in that, The file handle body (2) is inserted with a medullary file body (1), and a fixing member (11) is fixedly installed on the medullary file body (1). The fixing member (11) and the file handle body (2) are limited by a limiting rod assembly (3). A limiting slot is opened in the file handle body (2) at the limiting rod assembly (3), and an auxiliary component (6) is provided in the file handle body (2) on one side of the limiting slot. The file handle body (2) and the limiting rod assembly (3) are limited by the auxiliary component (6). The auxiliary component (6) includes a sliding block (62) and an auxiliary moving component. Multiple auxiliary rods (61) are installed at equal distances on the side of the sliding block (62) near the limiting slot. Both ends of the side of the sliding block (62) away from the limiting slot are connected to the file handle body (2) through the spring body (5). A limiting ring is rotatably installed inside the sliding block (62). One side of the moving rod (63) is connected to the limiting ring.

2. The medullary canal file for replacement surgery according to claim 1, characterized in that, The auxiliary active component includes an active rod (63), one side of which is connected to a limiting ring, and an active hole is provided in the sliding block (62) at the active rod.

3. The medullary canal file for replacement surgery according to claim 2, characterized in that, The two ends of the outer wall of the movable rod (63) near the limiting ring are symmetrically equipped with first extension blocks (64), the two ends of the outer wall of the movable rod (63) away from the limiting ring are symmetrically equipped with third extension blocks (66), and the two ends of the outer wall of the movable rod (63) on the side of the third extension block (66) are symmetrically equipped with second extension blocks (65). The first extension block (64), the second extension block (65) and the third extension block (66) are all in a parallel state.

4. The medullary canal file for replacement surgery according to claim 1, characterized in that, The file handle body (2) has a limiting groove located at the sliding block (62), and the two sides of the spring body (5) are respectively connected to the sliding block (62) and the inner wall of the limiting groove on the side away from the limiting slot.

5. The medullary canal file for replacement surgery according to claim 1, characterized in that, The limiting plug assembly (3) includes a fixing block, with multiple limiting plugs installed at equal intervals on one side of the fixing block, and a first plug hole is provided through the fixing block at the auxiliary plug (61).

6. The medullary canal file for replacement surgery according to claim 1, characterized in that, T-shaped fasteners are symmetrically installed on both sides of the fastener (11), and a locking groove is provided at one end of the file handle body (2) at the fastener (11), and a second insertion hole is provided in the fastener (11) at the limiting insertion rod.

7. The medullary canal file for replacement surgery according to claim 1, characterized in that, The file handle body (2) has an inlet / outlet groove (22) located on one side of the limiting groove and at the corresponding first extension block (64), and a movable cavity (23) is provided in the middle of the inlet / outlet groove (22), and the cross-sectional area of ​​the movable cavity (23) is not less than the cross-sectional area of ​​the auxiliary movable component.

8. The medullary canal file for replacement surgery according to claim 1, characterized in that, The file handle body (2) is screwed with a limit cap (4) on one side of the external access groove, and an installation groove is provided on one side of the file handle body (2) at the limit cap (4). A placement groove (21) is provided on one end of the installation groove on one side of the file handle body (2). The cross-sectional area of ​​the placement groove (21) is larger than the cross-sectional area of ​​the limit cap (4).

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