Broken nail extractor

Abstract

The utility model discloses a broken nail extractor, and particularly relates to the technical field of orthopedics department, which comprises a positioning cylinder, a connecting cylinder and a screw rod, and the positioning mechanism comprises a plurality of fixing plates arranged at the bottom end of the interior of the positioning cylinder in an annular array mode, a plurality of side openings facing the fixing plates are formed in the side wall of the bottom end of the positioning cylinder in an annular array mode, connecting blocks are fixed to the top ends of the fixing plates, and a movable block is arranged at the top end of the interior of the positioning cylinder. By arranging the connecting cylinder and the positioning cylinder and arranging the connecting block, the fixing plates, the driving assembly and other structures in the connecting cylinder and the positioning cylinder, a broken nail can stretch into the bottom end of the positioning cylinder, the four fixing plates can be folded inwards at the same time and rapidly clamp the broken nail, and then the broken nail can be rapidly taken out by pulling the fixing handle outwards and rotating the positioning cylinder. Operation is easy and convenient, time and labor are saved, loosening and falling are not prone to occurring, and the using effect of the device is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of orthopedics, in particular to a broken nail remover. Background Art

[0002] Orthopedics is one of the most common departments in major hospitals. It mainly studies the anatomy, physiology and pathology of the musculoskeletal system, and uses drugs, surgery and physical methods to maintain and develop the normal form and function of this system. With the development and progress of science and technology, orthopedics has made great progress in diagnosis and treatment. Among them, steel plate and bone screw fixation is the most common method for treating fractures in orthopedics. However, due to the quality of bone screws or other reasons, bone screws sometimes break during clinical use or after surgery, so extractors are often needed to remove broken nails.

[0003] At present, the existing broken nail extractors, when in use, mostly adopt a pliers-like structure to clamp the broken nails, and pull out the broken nails. It is difficult for medical staff to operate it and it is difficult to take care of both at the same time. They need to keep clamping hard while turning their wrists. If they are not careful, the broken nails may fall off easily, resulting in poor use effect. Utility Model Content

[0004] The purpose of the utility model is to provide a broken nail remover, which can extend the broken nail into the bottom end of the positioning cylinder by arranging a connecting cylinder and a positioning cylinder, and arranging a connecting block, a fixing plate and a driving assembly therein, and the four fixing plates can be retracted inward at the same time to quickly clamp the broken nail, and then the broken nail can be quickly removed by pulling the fixing handle outward and rotating the positioning cylinder. The operation is simple and convenient, and it saves time and effort, and it is not easy to loosen and fall off, which greatly improves the use effect of the device to solve the above-mentioned shortcomings in the technology.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a broken nail remover, comprising:

[0006] A positioning cylinder, a connecting cylinder being fixed on the top end of the positioning cylinder;

[0007] The positioning mechanism comprises a plurality of fixed plates arranged in a circular array at the bottom end of the positioning cylinder, and a plurality of side openings facing the fixed plates are opened in a circular array on the side wall of the bottom end of the positioning cylinder, a connecting block is fixed to the top end of the plurality of fixed plates, a movable active block is arranged at the top end of the positioning cylinder, a supporting block is fixed to the bottom side of the active block, a supporting arm is hinged between the supporting block and the plurality of connecting blocks, a driving assembly is arranged on the connecting cylinder, and the driving assembly is used to drive the active block to move.

[0008] Preferably, the driving assembly includes a threaded channel opened at the top of the connecting tube, a screw rod is connected through the interior of the threaded channel, the bottom end of the screw rod is movably connected to the movable block through a bearing, and a rotating block is fixed to the top end of the screw rod.

[0009] Preferably, a fixing handle is fixed on the outer side of the top end of the connecting tube.

[0010] Preferably, guide holes are formed on the top side walls of the four connecting blocks, a cross guide is provided inside the positioning tube and between the four connecting blocks, and the end of the cross guide passes through the guide hole and is fixedly connected to the positioning tube.

[0011] Preferably, a plurality of limit blocks are provided on the side wall of the movable block, and a limit groove matching the limit blocks is provided on the inner wall of the positioning cylinder.

[0012] Preferably, an arc-shaped groove is provided on the inner side of the fixing plate, and a plurality of anti-slip grooves are provided in an array on the inner wall of the arc-shaped groove.

[0013] Preferably, a threaded column is fixed to the bottom end of the connecting block, and a threaded hole matching the threaded column is formed at the top end of the fixing plate.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] By providing a connecting cylinder and a positioning cylinder, and providing a connecting block, a fixing plate, a driving assembly and other structures therein, the broken nail can be inserted into the bottom end of the positioning cylinder, and the four fixing plates can be retracted inward at the same time to quickly clamp the broken nail, and then the broken nail can be quickly taken out by pulling the fixing handle outward and rotating the positioning cylinder. The operation is simple and convenient, and it saves time and effort, and is not easy to loosen and fall off, which greatly improves the use effect of the device;

[0016] By setting threaded columns and threaded holes between the connecting block and the fixing plate, the fixing plate can be quickly fixed to the connecting block, and vice versa, the fixing plate can be quickly removed, which is not only convenient for separation and disinfection, but also can be disassembled and replaced in time after the fixing plate is worn out, greatly improving the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2It is a three-dimensional structural schematic diagram of the positioning cylinder and the connecting cylinder of the utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the positioning cylinder and the connecting cylinder of the utility model;

[0021] Figure 4 This is a schematic diagram of the connection structure between the movable block and the fixed plate of the utility model;

[0022] Figure 5 It is a schematic diagram of the separation structure of the connecting block and the fixing plate of the utility model.

[0023] Description of reference numerals:

[0024] 1. Positioning tube; 2. Connecting tube; 3. Fixing handle; 4. Side opening; 5. Fixing plate; 6. Threaded channel; 7. Screw; 8. Rotating block; 9. Movable block; 10. Limiting block; 11. Limiting groove; 12. Connecting block; 13. Cross guide; 14. Support block; 15. Support arm; 16. Guide hole; 17. Anti-slip groove; 18. Threaded column; 19. Threaded hole. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] The utility model provides Figure 1-Figure 4 A broken nail extractor is shown, comprising:

[0027] A positioning cylinder 1, a connecting cylinder 2 is fixed on the top of the positioning cylinder 1;

[0028] The positioning mechanism includes a plurality of fixed plates 5 arranged in a circular array at the bottom end of the positioning cylinder 1, and a plurality of side openings 4 facing the fixed plates 5 are opened in a circular array on the side wall of the bottom end of the positioning cylinder 1, and a connecting block 12 is fixed to the top of each of the plurality of fixed plates 5, a movable active block 9 is arranged at the top end of the positioning cylinder 1, a supporting block 14 is fixed to the bottom side of the active block 9, and a supporting arm 15 is hinged between the supporting block 14 and the plurality of connecting blocks 12, and a driving assembly is arranged on the connecting cylinder 2, and the driving assembly is used to drive the active block 9 to move.

[0029] The driving assembly includes a threaded channel 6 opened at the top of the connecting tube 2, a screw rod 7 is connected to the inside of the threaded channel 6, the bottom end of the screw rod 7 is movably connected to the movable block 9 through a bearing, and a rotating block 8 is fixed to the top of the screw rod 7.

[0030] A fixing handle 3 is fixed to the outer side of the top end of the connecting tube 2 .

[0031] The fixing handle 3 is provided to facilitate holding and rotating the positioning tube 1 .

[0032] The top side walls of the four connecting blocks 12 are each provided with a guide hole 16 . A cross guide frame 13 is provided inside the positioning tube 1 and between the four connecting blocks 12 . The end of the cross guide frame 13 passes through the guide hole 16 and is fixedly connected to the positioning tube 1 .

[0033] The inner side of the fixing plate 5 is provided with an arc-shaped groove, and the inner wall array of the arc-shaped groove is provided with a plurality of anti-skid grooves 17. The arc-shaped groove can better fit the shape of the bone screw, and the anti-skid groove 17 can be embedded in the screw thread on the outer wall of the bone screw to greatly enhance the firmness of the clamping.

[0034] The user can hold the connecting tube 2 through the fixed handle 3 and extend the bottom end of the positioning tube 1 to the top of the broken nail, so that the broken nail can be extended between the four fixed plates 5. By rotating the rotating block 8, the rotating block 8 drives the screw 7 to rotate, and then the screw 7 moves in the threaded channel 6 and drives the movable block 9 to move, so that the movable block 9 drives the supporting block 14 to move upward, and then the supporting block 14 can simultaneously pull multiple supporting arms 15 to rotate, so that the supporting arms 15 drive the four connecting blocks 12 to slide on the cross guide frame 13, and then each connecting block 12 drives the fixing plate 5 to move, so that the four fixing plates 5 can be retracted inward at the same time, and the anti-slip groove 17 can be used to quickly clamp the broken nail. After that, the hospital staff can quickly remove the broken nail by pulling outward through the fixed handle 3 and rotating the positioning tube 1. The operation is simple and convenient, and it saves time and effort. It is not easy to loosen and fall off, which greatly improves the use effect of the device.

[0035] Furthermore, the side wall of the movable block 9 is provided with a plurality of limit blocks 10, and the inner wall of the positioning cylinder 1 is provided with limit grooves 11 matching the limit blocks 10. The movable block 9 drives the limit blocks 10 to slide in the limit grooves 11, which can greatly improve the stability of the movable block 9 when moving.

[0036] The utility model provides Figure 5 In the broken nail extractor shown, a threaded column 18 is fixed to the bottom end of the connecting block 12 , and a threaded hole 19 matching the threaded column 18 is formed on the top end of the fixing plate 5 .

[0037] When in use, the threaded column 18 can be aligned with the threaded hole 19 so that the threaded column 18 can be screwed into the threaded hole 19, so that the fixing plate 5 can be quickly fixed on the connecting block 12, and vice versa, the fixing plate 5 can be quickly removed, which is not only convenient for separation and disinfection, but also can be disassembled and replaced in time after the fixing plate 5 is worn out during use, which greatly improves the use effect of the device.

[0038] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A broken nail extractor, characterized in that: include: A positioning cylinder (1), a connecting cylinder (2) being fixed to the top end of the positioning cylinder (1); A positioning mechanism, the positioning mechanism comprising a plurality of fixed plates (5) arranged in an annular array at the bottom end of a positioning cylinder (1), and a plurality of side openings (4) facing the fixed plates (5) are opened in an annular array on the side wall of the bottom end of the positioning cylinder (1), a connecting block (12) is fixed to the top end of each of the plurality of fixed plates (5), a movable active block (9) is arranged at the top end of the positioning cylinder (1), a supporting block (14) is fixed to the bottom side of the active block (9), a supporting arm (15) is hinged between the supporting block (14) and the plurality of connecting blocks (12), and a driving assembly is arranged on the connecting cylinder (2), and the driving assembly is used to drive the movable block (9) to move.

2. A broken nail remover according to claim 1, characterized in that: The driving assembly comprises a threaded channel (6) opened at the top end of the connecting tube (2), a screw rod (7) passing through the interior of the threaded channel (6), the bottom end of the screw rod (7) being movably connected to a movable block (9) via a bearing, and a rotating block (8) being fixed to the top end of the screw rod (7).

3. A broken nail extractor according to claim 1, characterized in that: A fixing handle (3) is fixed on the outer side of the top end of the connecting tube (2).

4. A broken nail remover according to claim 1, characterized in that: The top side walls of the four connecting blocks (12) are each provided with a guide hole (16); a cross guide frame (13) is provided inside the positioning cylinder (1) and between the four connecting blocks (12); an end of the cross guide frame (13) passes through the guide hole (16) and is fixedly connected to the positioning cylinder (1).

5. The broken nail extractor according to claim 1, characterized in that: The side wall of the movable block (9) is provided with a plurality of limit blocks (10), and the inner wall of the positioning cylinder (1) is provided with limit grooves (11) matching the limit blocks (10).

6. The broken nail extractor according to claim 1, characterized in that: An arc-shaped groove is provided on the inner side of the fixing plate (5), and a plurality of anti-slip grooves (17) are arranged in an array on the inner wall of the arc-shaped groove.

7. The broken nail extractor according to claim 1, characterized in that: A threaded column (18) is fixed to the bottom end of the connection block (12), and a threaded hole (19) matching the threaded column (18) is formed at the top end of the fixing plate (5).

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