CN210784642U

CN210784642U - Bone nail extractor

Info

Publication number: CN210784642U
Application number: CN201920952700.9U
Authority: CN
Inventors: 左林; 吴珣
Original assignee: Changzhou Xiongbang Medical Equipment Co ltd
Current assignee: Changzhou Xiongbang Medical Equipment Co ltd
Priority date: 2019-06-24
Filing date: 2019-06-24
Publication date: 2020-06-19
Anticipated expiration: 2029-06-24

Abstract

The utility model relates to the technical field of bone nail extractor, in particular to a bone nail extractor, which solves the defects of easy separation and limited operation of bone nails in the prior art, and comprises a base and a bone nail body, wherein the top of the base is connected with a fixed seat through bolts in sequence, a first screw hole is arranged inside the fixed seat, an adjusting screw is fixed on the internal thread of the first screw hole, one end of the adjusting screw is connected with a handle through screws, a movable plate is arranged at the top of the base in a sliding way, a bearing is arranged at one side of the movable plate, and when the bone nails slide to the right side along with the sliding of the movable plate, the sliding blocks at the two sides slide obliquely on the sliding groove, can continuously extrude the rubber layer, further clamp the bone nails, and improve the fixity of the bone nails more and more frequently in the pulling process, the bone nail is ensured not to be separated from the inside of the movable plate, and the patient is prevented from being injured again.

Description

Bone nail extractor

Technical Field

The utility model relates to a bone nail extractor technical field especially relates to a bone nail extractor.

Background

The bone nail is an internal fixing device for fixing a fracture part, can be used independently or combined with a bone fracture plate, and is commonly used as a cancellous bone screw, a cortical bone screw, a bone bolt, a hollow screw and the like.

At present most bone nail extractor is when using, along with the removal when bone nail takes out, the fixity of device can reduce, and the bone nail easily takes off the stiff end of extractor, because tensile inertia can cause the injury once more to the patient, and the operation of extractor is limited at present moreover, the personnel's application of force of being not convenient for.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects of easy separation and limited operation of bone nails in the prior art and providing a bone nail extractor.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a bone nail extractor, includes base and bone nail body, the top of base loops through bolted connection has the fixing base, first screw has been seted up to the inside of fixing base, the internal thread of first screw is fixed with adjusting screw, adjusting screw's one end has the handle through screwed connection, the top of base slides and is provided with the movable plate, and the bearing is installed to one side of movable plate, adjusting screw's the other pot head is established in the inside of bearing, there is the curb plate one side of fixing base through hexagonal screw connection, one side slip of curb plate is provided with the slider, one side of slider bonds through the adhesive has the rubber layer.

Preferably, the top of the base is fixed with a guide rail through a rivet, the top of the guide rail is connected with a sliding block in a sliding mode, and the moving plate and the sliding block are of an integrated structure.

Preferably, a fixing groove is formed in one side of the moving plate, a second screw hole is formed in the top of the fixing groove, a locking screw is fixed to the inner thread of the second screw hole, and one end of the bone nail body is placed inside the fixing groove.

Preferably, a sliding groove is formed in one side of the side plate, the sliding block is connected with the inside of the sliding groove in a sliding mode, and the sliding groove is inclined.

Preferably, the number of the side plates is two, and the two side plates are positioned on two sides of the adjusting screw rod.

Preferably, one side of the sliding block is movably hinged with a connecting rod, and the other end of the connecting rod is movably hinged with one side of the moving plate.

The utility model has the advantages that:

1. the utility model discloses in through the setting of adjusting screw, handle, movable plate, bearing, guide rail isotructure for medical personnel are through constantly turning handle, and the movable plate is pulled fast and the bone nail is driven and is taken out, and convenient operation is swift, the personnel's application of force of being convenient for.

2. The utility model discloses in through the setting of spout, curb plate, slider, rubber layer isotructure, along with when the movable plate pulling bone nail slided to the right side, the slider of both sides slided on the spout tilt ground, can constantly extrude the rubber layer, further presss from both sides the bone nail tightly, makes the bone nail improve more and more at the in-process fixity of pulling, has ensured that the bone nail can not break away from the inside of movable plate, has avoided the patient injured once more.

Drawings

Fig. 1 is a side sectional view of a bone screw extractor according to the present invention;

fig. 2 is a side view of a bone screw extractor according to the present invention;

FIG. 3 is a top view of a bone screw extractor in accordance with the present invention;

fig. 4 is a front view of the moving plate according to the present invention.

In the figure: the bone screw comprises a base 1, a fixed seat 2, an adjusting screw rod 3, a handle 4, a moving plate 5, a locking screw rod 6, a side plate 7, a bearing 8, a guide rail 9, a sliding groove 10, a sliding block 11, a rubber layer 12, a bone screw body 13, a fixing groove 14 and a connecting rod 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, a bone nail extractor comprises a base 1 and a bone nail body 13, wherein the top of the base 1 is sequentially connected with a fixed seat 2 through bolts, a first screw hole is formed in the fixed seat 2, an adjusting screw 3 is fixed in the first screw hole through internal threads, one end of the adjusting screw 3 is connected with a handle 4 through a screw, a movable plate 5 is slidably arranged on the top of the base 1, a bearing 8 is installed on one side of the movable plate 5, the other end of the adjusting screw 3 is sleeved in the bearing 8, the movable plate 5, the bearing 8, a guide rail 9 and other structures are arranged through the adjusting screw 3, the handle 4, the movable plate 5, the guide rail 9 and the like, so that medical personnel can rapidly pull the movable plate 5 to drive bone nails to be extracted by continuously rotating the handle 4, the operation is convenient and rapid, the force application of personnel is facilitated, one side of the sliding block 11 is bonded with a rubber layer 12 through an adhesive, the top of the base 1 is fixed with a guide rail 9 through a rivet, the top of the guide rail 9 is connected with a sliding block in a sliding manner, the moving plate 5 and the sliding block are of an integral structure, one side of the moving plate 5 is provided with a fixed groove 14, the top of the fixed groove 14 is provided with a second screw hole, the internal thread of the second screw hole is fixed with a locking screw 6, one end of a bone nail body 13 is placed inside the fixed groove 14, one side of the side plate 7 is provided with a sliding groove 10, the sliding block 11 is connected with the internal part of the sliding groove 10 in a sliding manner, through the arrangement of the sliding groove 10, the side plate 7, the sliding block 11, the rubber layer 12 and the like, when the bone nail is pulled to slide towards the right side along with the moving plate 5, the sliding blocks 11 on the two sides, the bone nail is ensured not to be separated from the inside of the movable plate 5, the patient is prevented from being injured again, the sliding groove 10 is inclined, the number of the side plates 7 is two, the two side plates 7 are located on two sides of the adjusting screw rod 3, one side of the sliding block 11 is movably hinged with the connecting rod 15, and the other end of the connecting rod 15 is movably hinged with one side of the movable plate 5.

In the first embodiment, when the bone screw body 13 is removed, the bone screw body 13 is first fixed, one end of the bone screw body 13 is inserted into the fixing groove 14, and after the locking screw 6 is screwed, one end of the locking screw 6 presses one side of the bone screw body 13 to fix the bone screw body 13.

In the second embodiment, the medical staff continuously rotates the handle 4, the handle 4 drives the adjusting screw rod 3 to rotate, the adjusting screw rod 3 moves in the internal thread of the fixed seat 2, one end of the adjusting screw rod 3 rotates in the bearing 8, the moving plate 5 is pulled to slide on the guide rail 9 towards the right side, and simultaneously the connecting rod 15 and the sliding block 11 connected with the moving plate are also driven to simultaneously slide, as the bone nail body 13 gradually moves towards the right side, the sliding blocks 11 on the two sides slide in the sliding groove 10, along the inclined sliding groove 10, the sliding blocks 11 can gradually move towards the positions close to the adjusting screw rod 3, and further the rubber layer 12 is extruded, so that the rubber layer 12 clamps the bone nail body 13 more, the bone nail body 13 is prevented from being separated, the fixing performance is strong, and when the sliding blocks 11 slide, the connecting rod 15 also rotates along with the sliding blocks 5 and the sliding blocks 11, and the mechanisms cannot.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A bone nail extractor, which comprises a base (1) and a bone nail body (13), and is characterized in that, the top of the base (1) is connected with a fixed seat (2) through bolts in sequence, a first screw hole is arranged inside the fixed seat (2), an adjusting screw rod (3) is fixed in the first screw hole through threads, one end of the adjusting screw rod (3) is connected with a handle (4) through a screw, a moving plate (5) is arranged at the top of the base (1) in a sliding manner, a bearing (8) is arranged on one side of the moving plate (5), the other end of the adjusting screw rod (3) is sleeved in the bearing (8), one side of the fixed seat (2) is connected with a side plate (7) through a hexagon screw, one side of the side plate (7) is provided with a sliding block (11) in a sliding mode, and one side of the sliding block (11) is bonded with a rubber layer (12) through an adhesive.

2. A bone screw extractor according to claim 1, characterized in that a guide rail (9) is fixed to the top of the base (1) by means of rivets, a slide block is slidably connected to the top of the guide rail (9), and the moving plate (5) and the slide block are of an integral structure.

3. A bone screw extractor according to claim 1, wherein one side of the moving plate (5) is provided with a fixing groove (14), the top of the fixing groove (14) is provided with a second screw hole, the inside of the second screw hole is fixed with a locking screw (6) by screw thread, and one end of the bone screw body (13) is placed inside the fixing groove (14).

4. A bone screw extractor according to claim 1, characterized in that one side of the side plate (7) is provided with a slide groove (10), the slide block (11) is slidably connected with the inside of the slide groove (10), and the slide groove (10) is inclined.

5. A bone screw extractor as claimed in claim 1, characterized in that the number of side plates (7) is two and that two side plates (7) are located on either side of the adjusting screw (3).

6. A bone screw extractor as claimed in claim 1, wherein one side of the slide (11) is movably hinged to a connecting rod (15), and the other end of the connecting rod (15) is movably hinged to one side of the moving plate (5).