A hip joint broach

Abstract

The utility model relates to the field of hip marrow cavity file, especially a hip marrow cavity file, including file handle body, the one side of file handle body is inserted with marrow cavity file body, one end of marrow cavity file body is fixedly installed with fixed part, and the recess is set up in the fixed part of file handle body one side, and one end between file handle body, marrow cavity file body is inserted with two limit components at equal distance, two limit components and file handle body are limited through auxiliary limit component, and auxiliary limit component is slidably arranged in file handle body, and a plurality of spring bodies are installed at equal distance in the one side of auxiliary limit component in file handle body, in the utility model, through the setting of limit component cooperation auxiliary limit component, can carry out quick dismounting between file handle body and marrow cavity file body, whole dismounting process does not need to use complicated tool or long time adjustment, and can replace marrow cavity file fast.

Description

Technical Field

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

[0002] A medullary canal reamer is used to enlarge and refine the medullary canal, commonly used in hip replacement or intramedullary nailing surgeries to ensure a proper fit between the implant and the bone cavity.

[0003] During use, medullary canal files are mostly connected to the extraction tool for easy operation, such as striking or rotating. Traditional extraction tools are connected to the medullary canal file using bolts or other fasteners, which makes the actual operation more cumbersome and the disassembly and assembly of the medullary canal file time-consuming. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a hip joint canal reamer.

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

[0006] A hip joint canal file includes a file handle body, a canal file body is inserted into one side of the file handle body, a fixing member is fixedly installed at one end of the canal file body, and a groove is provided on one side of the file handle body at the fixing member. Two limiting components are inserted at equal distances between one end of the file handle body and the canal file body.

[0007] The two limiting components are limited to the file handle body by an auxiliary limiting component. The auxiliary limiting component is slidably disposed in the file handle body, and multiple spring bodies are installed at equal distances on one side of the auxiliary limiting component in the file handle body.

[0008] Furthermore, in a preferred configuration, the limiting component includes a fixing plate, with I-shaped limiting blocks symmetrically installed on both sides of one end of the fixing plate, and a first slot is provided through the I-shaped limiting blocks inside the fixing component, a second slot is provided at one end of the file handle body at the I-shaped limiting blocks, and an auxiliary slot is provided at one end of the file handle body at the fixing plate.

[0009] Furthermore, in a preferred configuration, the auxiliary limiting component includes a sliding block, which is slidably disposed on one side of the auxiliary slot and located between two second slots. Both ends of the sliding block are equipped with extension blocks on the corresponding second slot side, and one end of the extension block is connected to an auxiliary insert block.

[0010] In addition, the preferred structure is that the I-shaped limiting insert has through holes at the auxiliary insert, and the file handle body has limiting grooves at the sliding block, extension block and auxiliary insert.

[0011] In addition, a preferred structure is that one side of the sliding block is connected to a handle via a connecting rod, and both ends of the handle are provided with I-shaped limiting members, and an movable cavity is provided in the handle at the I-shaped limiting members.

[0012] Furthermore, in a preferred configuration, an auxiliary groove is provided at one end of the file handle body at the handle portion, a groove is provided inside the file handle body at the I-shaped limiting member, and auxiliary cavities are provided at both ends of the groove inside the file handle body, with the cross-sectional area of ​​the auxiliary cavities being consistent with the cross-sectional area of ​​the I-shaped limiting member.

[0013] The beneficial effects of this utility model are as follows:

[0014] In this invention, by using a limiting component in conjunction with an auxiliary limiting component, the file handle body and the medullary file body can be quickly disassembled and assembled. The entire disassembly and assembly process does not require the use of complex tools or long-term adjustments, and the medullary file can be quickly replaced. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a hip joint medullary canal reamer proposed in this utility model;

[0016] Figure 2 This is a partially disassembled structural diagram of a hip joint canal reamer proposed in this utility model;

[0017] Figure 3 A structural schematic diagram of a partially disassembled cross-section of the file handle body and limiting components;

[0018] Figure 4 A schematic diagram of a partial cross-section of the file handle body;

[0019] Figure 5 A schematic diagram of the disassembled auxiliary limiting component.

[0020] In the diagram: 1. File handle body; 2. Medullary cavity file body; 21. Fixing component; 3. Limiting component; 31. Fixing plate; 32. I-shaped limiting block; 321. Locking through hole; 4. Auxiliary limiting component; 41. Sliding block; 42. Handle part; 43. Extension block; 44. Auxiliary block; 45. I-shaped limiting component; 5. Spring body. Detailed Implementation

[0021] 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.

[0022] Reference Figure 1-5A hip joint medullary canal file includes a file handle body 1, a medullary canal file body 2 inserted into one side of the file handle body 1, a fixing member 21 fixedly installed at one end of the medullary canal file body 2, and a groove is provided on one side of the file handle body 1 at the fixing member 21. Two limiting components 3 are inserted at equal distances between one end of the file handle body 1 and the medullary canal file body 2.

[0023] Meanwhile, it is worth noting that the specific structure and working principle of the file handle body 1 and the medullary cavity file body 2 are existing technologies that are currently publicly available on the market, and are not the main technical problems to be solved in this utility model. Therefore, this utility model will not elaborate further.

[0024] The two limiting components 3 are limited to the file handle body 1 by an auxiliary limiting component 4. The auxiliary limiting component 4 is slidably disposed inside the file handle body 1, and multiple spring bodies 5 are installed at equal distances on one side of the auxiliary limiting component 4 inside the file handle body 1.

[0025] Meanwhile, the limiting component 3 includes a fixing plate 31, with I-shaped limiting blocks 32 symmetrically installed on both sides of one end of the fixing plate 31, and a first slot is provided through the I-shaped limiting blocks 32 in the fixing component 21, a second slot is provided at one end of the file handle body 1 at the I-shaped limiting blocks 32, and an auxiliary slot is provided at one end of the file handle body 1 at the fixing plate 31.

[0026] Furthermore, the auxiliary limiting component 4 includes a sliding block 41, which is slidably disposed on one side of the auxiliary slot and located between two second slots. Both ends of the sliding block 41 are equipped with extension blocks 43 on the corresponding second slot side, and one end of the extension block 43 is connected to an auxiliary insert block 44.

[0027] Furthermore, the I-shaped limiting insert 32 has through holes at the auxiliary insert 44, and the file handle body 1 has limiting grooves at the sliding block 41, extension block 43, and auxiliary insert 44.

[0028] Furthermore, one side of the sliding block 41 is connected to a handle 42 via a connecting rod, and both ends of the handle 42 are provided with I-shaped limiting members 45, and an movable cavity is provided in the handle 42 at the I-shaped limiting members 45.

[0029] Furthermore, an auxiliary groove is provided at one end of the file handle body 1 at the handle portion 42, and a groove is provided inside the file handle body 1 at the I-shaped limiting member 45. Auxiliary cavities are provided at both ends of the groove inside the file handle body 1, and the cross-sectional area of ​​the auxiliary cavities is the same as the cross-sectional area of ​​the I-shaped limiting member 45.

[0030] It is worth noting that when the I-shaped limiting member 45 rotates until it is at the same horizontal level as the slide groove, the I-shaped limiting member 45 does not limit the distance between its handle 42 and the file handle body 1. During the sliding of the handle 42, the I-shaped limiting member 45 slides along the slide groove and drives the corresponding sliding block 41, extension block 43 and auxiliary insertion block 44 to move. When the I-shaped limiting member 45 rotates to a point where it is not at the same horizontal level as the slide groove, it limits the distance between its handle 42 and the file handle body 1, and the handle 42 cannot move.

[0031] It is also worth mentioning that when the I-shaped limiting member 45 is located in the auxiliary cavity near the second slot, one end of its auxiliary insert 44 is inserted into the second slot; when the I-shaped limiting member 45 is located in the auxiliary cavity away from the second slot, one end of its auxiliary insert 44 is away from the second slot.

[0032] In this embodiment, by inserting the fixing member 21 of the medullary file body 2 into the file handle body 1, and rotating the I-shaped limiting member 45 until it is at the same horizontal line as the slide groove, the I-shaped limiting member 45 does not limit the distance between its handle part 42 and the file handle body 1. During the sliding process of the handle part 42, its I-shaped limiting member 45 slides along the slide groove, and drives the corresponding sliding block 41, extension block 43 and auxiliary insertion block 44 to move until the sliding causes the I-shaped limiting member 45 to be located in the auxiliary cavity away from the second slot. Then, the I-shaped limiting member 45 is rotated until it is not at the same horizontal line as the slide groove, and at this time the spring body is in a deformed state.

[0033] Then, the limiting component 3 is inserted into the second slot to limit the file handle body 1 and the medullary file body 2. Next, the I-shaped limiting component 45 is rotated until it is at the same horizontal level as the slide groove. At this time, the I-shaped limiting component 45 no longer limits the handle part 42 and the file handle body 1. Under the action of the spring body, the handle part 42 drives the auxiliary limiting component 4 to move towards the second slot until the I-shaped limiting component 45 is located in the auxiliary cavity near the second slot. Then, the I-shaped limiting component 45 is rotated until it is no longer at the same horizontal level as the slide groove. This completes the quick disassembly and assembly between the file handle body 1 and the medullary file body 2. The entire disassembly and assembly process does not require the use of complicated tools or long-term adjustments, and the medullary file can be quickly replaced.

[0034] In this invention, by using the limiting component 3 in conjunction with the auxiliary limiting component 4, the file handle body 1 and the medullary file body 2 can be quickly disassembled and assembled. The entire disassembly and assembly process does not require the use of complex tools or long-term adjustments, and the medullary file can be quickly replaced.

[0035] 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 hip joint canal file, comprising a file handle body (1), characterized in that, The file handle body (1) is inserted into one side of the medullary file body (2), and a fixing member (21) is fixedly installed at one end of the medullary file body (2). A groove is provided on one side of the file handle body (1) at the fixing member (21). Two limiting components (3) are inserted at equal distances between one end of the file handle body (1) and the medullary file body (2). The two limiting components (3) are limited to the file handle body (1) by an auxiliary limiting component (4). The auxiliary limiting component (4) is slidably disposed inside the file handle body (1), and multiple spring bodies (5) are installed at equal distances on one side of the auxiliary limiting component (4) inside the file handle body (1).

2. The hip joint canal reamer according to claim 1, characterized in that, The limiting component (3) includes a fixing plate (31), with I-shaped limiting blocks (32) symmetrically installed on both sides of one end of the fixing plate (31), and a first slot is provided through the I-shaped limiting blocks (32) in the fixing member (21), a second slot is provided at one end of the file handle body (1) at the I-shaped limiting blocks (32), and an auxiliary slot is provided at one end of the file handle body (1) at the fixing plate (31).

3. The hip joint canal reamer according to claim 1, characterized in that, The auxiliary limiting component (4) includes a sliding block (41), which is slidably disposed on one side of the auxiliary slot and located between two second slots. Both ends of the sliding block (41) are equipped with extension blocks (43) on the side of the corresponding second slot, and one end of the extension block (43) is connected to an auxiliary plug (44).

4. The hip joint canal reamer according to claim 2, characterized in that, The I-shaped limiting insert (32) has through holes at the auxiliary insert (44), and the file handle body (1) has limiting grooves at the sliding block (41), extension block (43), and auxiliary insert (44).

5. A hip joint canal reamer according to claim 4, characterized in that, One side of the sliding block (41) is connected to a handle (42) via a connecting rod, and both ends of the handle (42) are provided with I-shaped limiting members (45), and an movable cavity is provided in the handle (42) at the I-shaped limiting member (45).

6. The hip joint canal reamer according to claim 1, characterized in that, The file handle body (1) has an auxiliary groove at one end located at the handle part (42), and a groove is provided inside the file handle body (1) at the I-shaped limiting member (45). Auxiliary cavities are provided at both ends of the groove inside the file handle body (1), and the cross-sectional area of ​​the auxiliary cavity is the same as that of the I-shaped limiting member (45).

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