Medullary cavity file beating and pulling device

Abstract

The utility model relates to the field of medullary cavity files, in particular to a medullary cavity file beating and pulling device which is characterized in that a mounting piece is fixedly arranged on a medullary cavity file, a mounting cavity is formed in a beating and pulling assembly corresponding to the mounting piece in a matched mode, and a plurality of clamping cavities are vertically formed in the mounting piece; a plurality of vertical cavities are transversely formed in the beating and pulling assembly in a penetrating mode, clamping pieces are vertically and movably arranged in the vertical cavities, the clamping pieces are matched with the clamping cavities, and limiting pieces used for locking the clamping pieces are further movably arranged in the beating and pulling assembly. According to the medullary cavity file, the mounting piece is inserted into the mounting cavity and is matched with the fixed clamping between the clamping piece and the clamping cavity, and finally the clamping piece is locked through the limiting piece, so that the fixed connection between the beating and pulling assembly and the medullary cavity file can be realized, the mounting mode of the medullary cavity file is simple and convenient, and the medullary cavity file is convenient for a user to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to marrow cavity file technical field especially relates to a marrow cavity file hits and pulls device. BACKGROUND

[0002] The marrow cavity file is used for expanding and finishing the bone marrow cavity, is often seen in hip joint replacement or intramedullary nail operation, and ensures that the implant matches the bone cavity.

[0003] In the actual application process, marrow cavity files are generally connected with the hitting and pulling device to facilitate operation such as knocking and rotating. The traditional hitting and pulling device is connected with the marrow cavity file through bolts and other fasteners. This connection mode increases the tool replacement time in actual operation, is more troublesome, and is inconvenient for users to use. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art and provides a marrow cavity file hitting and pulling device.

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

[0006] A marrow cavity file hitting and pulling device, comprising a hitting and pulling assembly and a marrow cavity file, the marrow cavity file is fixedly provided with a mounting piece, the hitting and pulling assembly is provided with a mounting cavity corresponding to the mounting piece, and a plurality of clamping cavities are vertically formed in the mounting piece; a plurality of vertical cavities are transversely formed in the hitting and pulling assembly, clamping pieces are vertically movably arranged in the vertical cavities, the clamping pieces are matched with the clamping cavities, and a limiting piece for locking the clamping pieces is movably arranged in the hitting and pulling assembly.

[0007] In addition, preferably, the vertical cavities are communicated with the mounting cavity, when the mounting piece is inserted into the mounting cavity, the clamping cavities are matched and aligned with the vertical cavities.

[0008] In addition, preferably, first springs are arranged on the two sides of the vertical cavities and connected with the clamping pieces.

[0009] In addition, preferably, the outer sides of the clamping pieces are fixedly connected with main side plates, and anti-skid pads are arranged on the main side plates.

[0010] In addition, preferably, transverse cavities communicated with the vertical cavities are formed in the two sides of the hitting and pulling assembly, second springs are arranged in the transverse cavities and connected with the limiting pieces.

[0011] In addition, preferably, limiting cavities corresponding to the limiting pieces are formed in the clamping pieces, vice side plates are fixedly arranged on the outer sides of the limiting pieces, and anti-skid pads are arranged on the vice side plates.

[0012] The beneficial effects of this utility model are as follows: by inserting the mounting part into the mounting cavity and cooperating with the fixing between the clip and the clip cavity, and finally locking the clip by the limiting part, the fixed connection between the punching and pulling component and the medullary canal file can be achieved. This method of installing the medullary canal file is simple and convenient, and easy for users to use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a medullary cavity filing and pulling device proposed in this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the medullary canal file of the medullary canal file removal device proposed in this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the extraction component of the medullary canal file extraction device proposed in this utility model;

[0016] Figure 4 This is a schematic diagram of the clamping component, limiting component, first spring, and second spring of the medullary cavity filing and pulling device proposed in this utility model.

[0017] Figure 5 This is a schematic diagram of the clamping component of a medullary cavity filing and pulling device proposed in this utility model;

[0018] Figure 6 This is a schematic diagram of the structure of the limiting component of the medullary cavity filing and pulling device proposed in this utility model;

[0019] Figure 7 This is a schematic diagram of the internal structure of the extraction component of the medullary cavity file extraction device proposed in this utility model after the locking mechanism is hidden.

[0020] In the figure: 1. Pull-out assembly, 11. Mounting cavity, 12. Vertical cavity, 121. First spring, 13. Horizontal cavity, 131. Second spring, 2. Medullary cavity, 21. Mounting component, 22. Locking cavity, 3. Locking component, 31. Main side plate, 32. Limiting cavity, 4. Limiting component, 41. Secondary side plate. 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 Figures 1-7The utility model provides a marrow file punch and pull device, including punch and pull assembly 1 and marrow file 2, is fixedly arranged with mounting piece 21 on marrow file 2, and punch and pull assembly 1 is opened with installation cavity 11 to corresponding mounting piece 21 adaptation, and a plurality of clamping cavities 22 are vertically opened on mounting piece 21.

[0023] Wherein, the vertical cavity 12 is communicated with the installation cavity 11, when the mounting piece 21 is inserted into the installation cavity 11, the clamping cavity 22 is matched with the vertical cavity 12.

[0024] Wherein, the two sides of the vertical cavity 12 are provided with the first spring 121 upwards, and the other end of the first spring 121 is connected with the clamping piece 3. Through the setting of the first spring 121, the clamping piece 3 can be pulled down, so that the clamping piece 3 can be stably clamped in the clamping cavity 22.

[0025] Wherein, the outer side of the clamping piece 3 is fixedly connected with the main side plate 31, and the main side plate 31 is provided with the antiskid pad. Through the setting of the main side plate 31 on both sides, the user can move the clamping piece 3.

[0026] Wherein, the two sides of punch and pull assembly 1 are provided with the horizontal cavity 13 communicated with the vertical cavity 12, the second spring 131 is installed in the horizontal cavity 13 towards the vertical cavity 12, and the other end of the second spring 131 is connected with the limiting piece 4. Through the setting of the second spring 131, the limiting piece 4 can be pushed into the limiting cavity 32, so that the limiting piece 4 can be stably clamped in the limiting cavity 32.

[0027] Wherein, the limiting cavity 32 is opened in the clamping piece 3 corresponding to the limiting piece 4, the outer side of the limiting piece 4 is fixedly provided with the auxiliary side plate 41, and the auxiliary side plate 41 is provided with the antiskid pad. Through the setting of the auxiliary side plate 41 on both sides, the user can move the limiting piece 4.

[0028] In the embodiment, by inserting the mounting piece 21 into the installation cavity 11, and by the fixation of the clamping piece 3, the fixed connection between the punch and pull assembly 1 and the marrow file 2 can be realized. It is worth noting that the specific working structure and working mode between the punch and pull assembly 1 and the marrow file 2 are prior art, and they do not belong to the technical problem of quick installation required to be solved in the technical scheme, so no more description is made.

[0029] Further, when the user needs to fix the marrow file 2 on the punch and pull assembly 1, the auxiliary side plate 41 on both sides is pushed towards the horizontal cavity 13, so that the limiting piece 4 can be moved into the horizontal cavity 13, and the second spring 131 is compressed at this time.

[0030] At this time, the limiting pieces 4 no longer cause clamping to the limiting cavities 32, so the user can vertically push the main side plates 31 on both sides upwards, thereby driving the clamping pieces 3 to move upwards to the topmost position, and the first springs 121 are all stretched.

[0031] Then, the user does not release the main side plates 31, and inserts the mounting piece 21 on the reamer 2 into the mounting cavity 11 in the driving and pulling assembly 1, at this time, the clamping cavity 22 on the mounting piece 21 is matched and aligned with the vertical cavity 12. Then, the user only needs to release the main side plates 31 on both sides, at this time, the clamping pieces 3 are automatically reset by the elastic force of the first springs 131, thereby driving the clamping pieces 3 to be matched and clamped in the clamping cavities 22.

[0032] Since the limiting pieces 4 are wedge-shaped and the inclined surface faces upwards, when the clamping pieces 3 move downwards, they can automatically push the limiting pieces 4 into the horizontal cavities 13 and compress the second springs 131. When the clamping pieces 3 are completely clamped in the clamping cavities 22, the limiting cavities 32 are aligned with the horizontal cavities 13, at this time, the limiting pieces 4 are automatically reset into the limiting cavities 32 by the elastic force of the second springs 131. In this way, the limiting pieces 4 can lock the clamping pieces 3, thereby improving the clamping stability of the clamping pieces 3 on the clamping cavities 22.

[0033] Further, when the user needs to disassemble the driving and pulling assembly 1 and the reamer 2, the user only needs to move the auxiliary side edges 41 on both sides outward to release the clamping between the limiting pieces 41 and the limiting cavities 32. Then, the user moves the main side plates 31 upwards to drive the clamping pieces 3 to move upwards to release the mutual clamping between the clamping pieces 3 and the clamping cavities 22, at this time, the user can directly pull the reamer 2 out of the driving and pulling assembly 1.

[0034] Further, the vertical cavities 12 are fixedly provided with guide columns on both sides, which can guide the clamping pieces 3. The horizontal cavities 13 and the limiting pieces 4 are provided with corresponding guide pieces and guide grooves, which can guide the limiting pieces 4. In this way, the movement stability of the clamping pieces 3 and the limiting pieces 4 can be ensured, and the clamping pieces 3 and the limiting pieces 4 can be prevented from falling off. This is the prior art, and thus no more description is given.

[0035] In the utility model, the mounting piece 21 is inserted into the mounting cavity 11, and the clamping pieces 3 and the clamping cavities 22 are fixedly clamped, and finally the limiting pieces 4 lock the clamping pieces 3, thereby realizing the fixed connection between the driving and pulling assembly 1 and the reamer 2. This mounting method of the reamer 2 is simple and convenient, and is convenient for the user to use.

[0036] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A canal file extraction device, comprising an extraction assembly (1) and a canal file (2), characterized in that, The medullary canal file (2) is fixedly provided with an installation part (21), and the punching and pulling assembly (1) is adapted to the installation part (21) with an installation cavity (11), and the installation part (21) is provided with multiple vertically opening slots (22). The pull-out assembly (1) has multiple vertical cavities (12) that are horizontally extended through it. Each vertical cavity (12) has a locking piece (3) that is vertically movable. Each locking piece (3) is adapted to the locking cavity (22). The pull-out assembly (1) also has a limiting piece (4) that is movable to lock the locking piece (3).

2. The medullary canal file and pull device according to claim 1, characterized in that, The vertical cavities (12) are all connected to the mounting cavities (11). When the mounting component (21) is inserted into the mounting cavity (11), the locking cavities (22) are all adapted and aligned with the vertical cavities (12).

3. The medullary canal file and extraction device according to claim 1, characterized in that, Both sides of the vertical cavity (12) are provided with a first spring (121) facing upwards, and the other end of the first spring (121) is connected to the clip (3).

4. The medullary canal file and pull device according to claim 1, characterized in that, The outer side of each of the card pieces (3) is fixedly connected to the main side plate (31), and the main side plate (31) is provided with anti-slip pads.

5. The medullary canal file and pull device according to claim 1, characterized in that, The pull-out assembly (1) has horizontal cavities (13) on both sides that communicate with the vertical cavity (12). A second spring (131) is installed in each horizontal cavity (13) facing the vertical cavity (12), and the other end of the second spring (131) is connected to the limiting member (4).

6. The medullary canal file and extraction device according to claim 5, characterized in that, Each of the card (3) and the corresponding limiting member (4) is adapted to have a limiting cavity (32). Each of the limiting members (4) has a secondary side plate (41) fixedly installed on its outer side, and each of the secondary side plates (41) is provided with an anti-slip pad.

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