Special screw extractor for orthopedics

Abstract

The utility model discloses a special take out nail device for orthopedics department, including support board, the middle part of support board is integrally provided with sliding sleeve, support board is located at the both sides of sliding sleeve and is opened sliding slot, the inside sliding connection of sliding sleeve has screw rod, the bottom of screw rod is provided with chuck, the inside sliding connection of sliding slot has telescopic link, the bottom fixed mounting of telescopic link has connecting seat, the bottom rotation connection of connecting seat has the symmetrical setting arc -shaped clamps, one side of arc -shaped clamp is threaded and is connected with the adjusting screw rod, one end of adjusting screw rod is rotatably connected with the abutting block in arc -shaped clamp inside. Through setting arc -shaped clamp, effectively solved the manual take out nail device in the process of taking nail, the inconvenient device position's fixation, the problem of the harm of taking nail position to patient again when taking nail.

Description

Technical Field

[0001] This utility model relates to the field of nail removal technology, specifically a nail removal device for orthopedics. Background Technology

[0002] Fractures are a common injury, with millions of cases requiring internal fixation surgery worldwide each year. Internal fixation involves reducing the fracture and then connecting the fractured area with plates and screws. After the screws are implanted in the body, they can react to environmental media and alternating stress, causing great pain to the patient. Therefore, they need to be removed at a certain time.

[0003] A staple remover is needed when removing the staples. However, existing staple removers are usually operated by medical staff by hand. Because the staples are small, it is not easy to fix the device in place when the staple remover is held by hand during the removal process. The device is prone to slipping during the removal process, which affects the removal operation and may cause further damage to the patient at the removal site.

[0004] Therefore, we propose a nail remover specifically for orthopedic use. Utility Model Content

[0005] The purpose of this invention is to provide a nail remover specifically for orthopedics, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an orthopedic nail remover, comprising a support plate, a sliding sleeve integrally formed in the middle of the support plate, sliding grooves on both sides of the sliding sleeve on the support plate, a threaded rod slidably connected through the interior of the sliding sleeve, a clamp at the bottom of the threaded rod, a telescopic rod slidably connected inside the sliding groove, a connecting seat fixedly installed at the bottom of the telescopic rod, symmetrically arranged arc-shaped clamps rotatably connected to the bottom of the connecting seat, an adjusting screw threadedly connected to one side of the arc-shaped clamp, a clamping block rotatably connected to one end of the adjusting screw inside the arc-shaped clamp, a clamping knob fixedly installed at the other end of the adjusting screw outside the arc-shaped clamp, and a fixing lock at the bottom of the two arc-shaped clamps.

[0007] Optionally, the top of the sliding sleeve is rotatably connected to a threaded sleeve, and the threaded rod is threadedly connected to the middle of the threaded sleeve.

[0008] Optionally, a limiting strip is integrally connected inside the sliding sleeve, and a limiting groove is formed on the outer circumferential surface of the threaded rod, with the limiting strip slidingly connected to the inside of the limiting groove.

[0009] Optionally, a fixing knob is threaded to the top of the telescopic rod, the bottom of the fixing knob is in tight contact with the top of the support plate, and the top of the telescopic rod is in tight contact with the bottom of the support plate.

[0010] Optionally, the bottom of the arc-shaped clamp is a horizontal plane, and the bottom of the fixing buckle is flush with the plane of the bottom of the arc-shaped clamp.

[0011] Optionally, the opposing surfaces of the two abutting blocks are concave arc surfaces, and protective sponge is bonded to the concave arc surfaces of the abutting blocks and the arc-shaped clamp.

[0012] Optionally, the fixed latch includes a locking rod movably connected to an arc-shaped clamp, and a locking groove provided at the bottom of another arc-shaped frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This orthopedic screw remover features two arc-shaped clamps. These clamps are opened and held on both sides of the area where the screw needs to be removed. The clamp head is aligned with the screw, and then secured with a locking mechanism. Rotating the clamping knob causes the adjusting screw to turn, which in turn tightens the clamping block, preventing the arc-shaped clamps from wobbling and securing the clamp head to the screw. Rotating the threaded sleeve removes the screw. This effectively solves the problem of manually holding the screw remover during removal, which is inconvenient for maintaining the device's position and can easily cause further injury to the patient at the screw removal site.

[0015] 2. This orthopedic screw remover, through the use of a sliding sleeve and a threaded sleeve, fixes the arc-shaped clamp after it is secured. Then, the clamp head is clamped and fixed to the bone screw. Rotating the threaded sleeve causes the threaded rod to move upward under the action of the limiting strip and the limiting slide groove, continuously pulling out the fixation. At the same time, the height of the support plate is adjusted by the telescopic rod. The bone screw is quickly and stably pulled upward by the threaded rod, which greatly improves the screw removal efficiency. Furthermore, the fixed support plate can ensure the stability of the screw remover during screw removal and avoid the occurrence of screw breakage. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an orthopedic nail remover according to the present invention;

[0017] Figure 2 This is a schematic diagram of the threaded rod of an orthopedic nail remover according to the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the support plate of an orthopedic nail remover according to the present invention;

[0019] Figure 4 This is a schematic diagram of the telescopic rod of an orthopedic nail remover according to the present invention;

[0020] Figure 5 This is a schematic diagram of the arc-shaped clamp of an orthopedic nail remover according to the present invention.

[0021] In the diagram: 1. Support plate; 2. Sliding sleeve; 3. Threaded rod; 4. Threaded sleeve; 5. Clamp; 6. Sliding groove; 7. Telescopic rod; 8. Connecting seat; 9. Arc-shaped clamp; 10. Limiting strip; 11. Limiting groove; 12. Adjusting screw; 13. Clamping block; 14. Clamping knob; 15. Fixing lock; 16. Fixing knob. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1 to 5 This utility model provides a screw remover specifically for orthopedics, including a support plate 1. A sliding sleeve 2 is integrally formed in the middle of the support plate 1. The support plate 1 has sliding grooves 6 on both sides of the sliding sleeve 2. A threaded rod 3 is slidably connected through the sliding sleeve 2. A clamp 5 is provided at the bottom of the threaded rod 3. A telescopic rod 7 is slidably connected inside the sliding grooves 6. A connecting seat 8 is fixedly installed at the bottom of the telescopic rod 7. A symmetrically arranged arc-shaped clamp 9 is rotatably connected to the bottom of the connecting seat 8. An adjusting screw 12 is threadedly connected to one side of the arc-shaped clamp 9. A clamping block 13 located inside the arc-shaped clamp 9 is rotatably connected to one end of the adjusting screw 12. The other end of the adjusting screw 12 is fixedly installed... Equipped with a clamping knob 14 located on the outside of the arc-shaped clamps 9, and a fixing buckle 15 at the bottom of the two arc-shaped clamps 9, the two arc-shaped clamps 9 are opened by setting the arc-shaped clamps 9 and clamped on both sides of the area where the bone screw needs to be removed. The clamp head 5 is aligned with the bone screw and then fixed by the fixing buckle 15. Then, the clamping knob 14 is rotated to rotate the adjusting screw 12, which in turn causes the clamping block 13 to clamp and prevent the arc-shaped clamps 9 from shaking, clamping and fixing the clamp head 5 with the bone screw. The screw is removed by rotating the threaded sleeve 4. This effectively solves the problem that when the screw remover is manually held, it is not convenient to fix the device position and it is easy to cause damage to the patient's screw removal site during the screw removal process.

[0024] The top of the sliding sleeve 2 is rotatably connected to the threaded sleeve 4, and the threaded rod 3 is threadedly connected to the middle of the threaded sleeve 4.

[0025] The sliding sleeve 2 has an integrally connected limiting strip 10 inside, and the outer circumferential surface of the threaded rod 3 has a limiting groove 11, and the limiting strip 10 and the limiting groove 11 are internally slidably connected.

[0026] The top of the telescopic rod 7 is threaded with a fixing knob 16. The bottom of the fixing knob 16 is in close contact with the top of the support plate 1, and the top of the telescopic rod 7 is in close contact with the bottom of the support plate 1. After the arc-shaped clamp 9 is fixed by setting the sliding sleeve 2 and the threaded sleeve 4, the clamp 5 is clamped and fixed with the bone screw. Rotating the threaded sleeve 4 causes the threaded rod 3 to move upward under the action of the limiting strip 10 and the limiting slide groove 11, continuously pulling out the fixation. At the same time, the height of the support plate 1 is adjusted by the telescopic rod 7. The bone screw is quickly and stably pulled upward by the threaded rod 3, which greatly improves the screw removal efficiency. In addition, the fixed support plate 1 can ensure the stability of the screw remover and avoid the occurrence of broken screws.

[0027] The bottom of the arc-shaped clip 9 is horizontal, and the bottom of the fixing buckle 15 is flush with the plane of the bottom of the arc-shaped clip 9.

[0028] The opposing surfaces of the two clamping blocks 13 are concave arc surfaces, and protective sponge is bonded to the concave arc surfaces of the clamping blocks 13 and the arc-shaped clamp 9.

[0029] The fixed latch 15 includes a locking rod that is movably connected to an arc-shaped clip 9, and a locking groove provided at the bottom of another arc-shaped frame.

[0030] Working principle:

[0031] Open the two arc-shaped clamps 9 and clamp them on both sides of the area where the bone screw needs to be removed. Align the clamp head 5 with the bone screw and then fix it with the fixing buckle 15. Then turn the clamping knob 14 to make the adjusting screw 12 rotate, which in turn makes the clamping block 13 clamp to prevent the arc-shaped clamps 9 from shaking. After the arc-shaped clamps 9 are fixed, clamp the clamp head 5 with the bone screw and fix it. Turn the threaded sleeve 4 so that the threaded rod 3 moves upward under the action of the limiting strip 10 and the limiting slide groove 11, and continuously pull out the fixation. At the same time, adjust the height of the support plate 1 through the telescopic rod 7, and quickly and stably pull out the bone screw by the threaded rod 3.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A special-purpose nail extractor for orthopedics, comprising a support plate (1), characterized in that, The support plate (1) is integrally provided with a sliding sleeve (2) in the middle. The support plate (1) has sliding grooves (6) on both sides of the sliding sleeve (2). A threaded rod (3) is slidably connected through the inside of the sliding sleeve (2). A clamp (5) is provided at the bottom of the threaded rod (3). A telescopic rod (7) is slidably connected inside the sliding groove (6). A connecting seat (8) is fixedly installed at the bottom of the telescopic rod (7). A symmetrically arranged arc-shaped clamp (9) is rotatably connected to the bottom of the connecting seat (8). An adjusting screw (12) is threadedly connected to one side of the arc-shaped clamp (9). A clamping block (13) located inside the arc-shaped clamp (9) is rotatably connected to one end of the adjusting screw (12). A clamping knob (14) located outside the arc-shaped clamp (9) is fixedly installed at the other end of the adjusting screw (12). A fixing buckle (15) is provided at the bottom of the two arc-shaped clamps (9).

2. The special orthopedic nail extractor according to claim 1, characterized in that, The top of the sliding sleeve (2) is rotatably connected to a threaded sleeve (4), and the threaded rod (3) is threadedly connected to the middle of the threaded sleeve (4).

3. The special orthopedic nail extractor according to claim 2, characterized in that, The sliding sleeve (2) is integrally connected to a limiting strip (10), and the outer circumferential surface of the threaded rod (3) is provided with a limiting groove (11). The limiting strip (10) and the limiting groove (11) are internally slidably connected.

4. The special orthopedic nail extractor according to claim 1, characterized in that, The top of the telescopic rod (7) is threaded with a fixing knob (16), the bottom of the fixing knob (16) is in close contact with the top of the support plate (1), and the top of the telescopic rod (7) is in close contact with the bottom of the support plate (1).

5. The special orthopedic nail extractor according to claim 1, characterized in that, The bottom of the arc-shaped clip (9) is a horizontal plane, and the bottom of the fixing buckle (15) is flush with the plane of the bottom of the arc-shaped clip (9).

6. The special orthopedic nail extractor according to claim 1, characterized in that, The opposing surfaces of the two abutting blocks (13) are concave arc surfaces, and the concave arc surfaces of the abutting blocks (13) and the arc-shaped clamp (9) are bonded with protective sponge.

7. The special orthopedic nail extractor according to claim 1, characterized in that, The fixed latch (15) includes a locking rod movably connected to an arc-shaped clamp (9) and a locking groove provided at the bottom of another arc-shaped frame.

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