CN211583458U

CN211583458U - Universal screwdriver for tail cap of orthopedic intramedullary nail

Info

Publication number: CN211583458U
Application number: CN202020015837.4U
Authority: CN
Inventors: 陈立军; 王洲峰; 薛防震; 褚武; 施银辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-03
Filing date: 2020-01-03
Publication date: 2020-09-29
Anticipated expiration: 2030-01-03

Abstract

The utility model relates to an universal type screwdriver for tail cap on orthopedics intramedullary nail, this an universal type screwdriver for tail cap on orthopedics intramedullary nail includes cutter arbor and tool bit, still is equipped with the regulating part that is used for adjusting the tool bit angle between cutter arbor and the tool bit, and the tool bit is connected on the regulating part with swinging, and the regulating part is still wobbling connected on the cutter arbor simultaneously to, the tool bit forms the contained angle with the swing direction of regulating part, the utility model has the advantages of: the design that above-mentioned tool bit and the swing direction of regulating part formed the contained angle can ensure that the tool bit can be according to the gesture of the random adjustment application of force of the angle that stretches into at the in-process of wrench movement tail cap, can select the angle that suitably has an effect according to the position of skin wound when guaranteeing the doctor to perform the operation, comes to wrench movement, very convenient to the nut.

Description

Universal screwdriver for tail cap of orthopedic intramedullary nail

Technical Field

The utility model relates to an orthopedics internal fixation instrument especially relates to an universal screwdriver that is used for tail cap on the orthopedics intramedullary nail.

Background

In the operation of femoral shaft fracture, an interlocking intramedullary nail is usually adopted as an internal fixing piece of the femoral shaft fracture, and after the reduction and the interlocking fixation of the fracture are finished, the last operation step is to screw in a tail cap of the intramedullary nail at the tail end of a main nail. Because the angle of nailing of intramedullary nail often is unanimous with the axis direction of humerus, consequently, the intramedullary nail tail cap also need keep unanimous with the axis direction of humerus when the screw in, when actual clinical operation, because the incision of operation often sets up in one side of humerus, this just leads to putting into behind the tail cap, the instrument that is used for the back cap of turn-knob can become with the humerus axis angle for the surgeon hardly has an effect, and need peel off the buttock soft tissue repeatedly, not only waste time and energy, still cause the injury to the patient easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing an universal screwdriver used for the orthopedic intramedullary nail tail cap, which is not affected by the angle of the intramedullary nail and is convenient to turn.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the universal screwdriver for the tail cap of the orthopedic intramedullary nail comprises a screwdriver rod and a screwdriver head, wherein an adjusting piece used for adjusting the angle of the screwdriver head is further arranged between the screwdriver rod and the screwdriver head, the screwdriver head is connected to the adjusting piece in a swinging mode, the adjusting piece is connected to the screwdriver rod in a swinging mode, and the screwdriver head and the adjusting piece form an included angle in the swinging direction.

In order to ensure that the force on the cutter bar is transmitted to the cutter head more smoothly, the cutter head is perpendicular to the swinging direction of the adjusting piece.

In order to ensure that the adjusting part swings relative to the cutter bar, preferably, a first connecting part is convexly arranged on the end face of the first end of the adjusting part, a first through groove matched with the first connecting part is arranged at the corresponding end of the cutter bar, and the adjusting part is rotatably connected to the cutter bar through a first rotating shaft arranged on the side wall of the first connecting part and the first through groove in a penetrating manner.

In order to ensure that the cutter head swings relative to the adjusting piece, preferably, a second connecting portion is convexly arranged on the end face of the first end of the cutter head, a second through groove matched with the second connecting portion is correspondingly arranged on the second end of the adjusting piece, and the cutter head is rotatably connected to the adjusting piece through a second rotating shaft arranged on the side walls of the second connecting portion and the second through groove in a penetrating mode.

In order to ensure that the cutter head can be matched with the intramedullary nail tail cap, the outer wall of the second end of the cutter head is preferably provided with a cutter tooth part matched with the intramedullary nail tail cap, and the cutter tooth part is provided with a plurality of cutter teeth which are arranged at intervals along the outer wall of the cutter head.

Compared with the prior art, the utility model has the advantages of: this a universal screwdriver for tail cap on orthopedics intramedullary nail, the tool bit is connected on the regulating part with swinging, and the regulating part wobbling is connected on the cutter arbor, and the design of contained angle is formed with the swing direction of regulating part to above-mentioned tool bit, can ensure that the tool bit can be according to the posture of the random adjustment application of force of the angle that stretches into when wrench movement tail cap's in-process, can select the angle that suits to exert force according to the position of skin wound when ensuring the doctor to perform the operation, comes to wrench movement the screw cap, and is very convenient.

Drawings

FIG. 1 is a schematic view of the overall structure of a universal screwdriver used for a tail cap of an orthopedic intramedullary nail according to an embodiment of the present invention;

FIG. 2 is a schematic view of the overall structure at another angle of FIG. 1;

fig. 3 is an enlarged schematic view of a portion a in fig. 2.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 3, for a preferred embodiment of the present invention, in this embodiment, the universal screwdriver for orthopedic intramedullary nail tail cap includes a screwdriver rod 1 and a screwdriver head 2, an adjusting member 3 for adjusting the angle of the screwdriver head 2 is further disposed between the screwdriver rod 1 and the screwdriver head 2, the screwdriver head 2 is connected to the adjusting member 3 in a swinging manner, the adjusting member 3 is connected to the screwdriver rod 1 in a swinging manner, in order to ensure smooth power transmission to the screwdriver head 2, the screwdriver head 2 forms an included angle with the swinging direction of the adjusting member 3, such that the screwdriver head 2 forms an angle with the adjusting member 3, which can ensure that the screwdriver head can perform any posture adjustment in all directions, in this embodiment, the screwdriver head 2 is perpendicular to the swinging direction of the adjusting member 3, i.e. the angle formed by the screwdriver head 2 and the adjusting member 3 is preferably 90 °.

In the embodiment, in order to ensure that the cutter head 2 can swing in one direction, a first connecting portion 31 is convexly arranged on the end surface of the first end of the adjusting piece 3, a first through groove 11 matched with the first connecting portion 31 is arranged at the corresponding end of the cutter bar 1, and the adjusting piece 3 is rotatably connected to the cutter bar 1 through a first rotating shaft 4 arranged on the side walls of the first connecting portion 31 and the first through groove 11; in order to ensure that the cutter head can swing along the other direction, a second connecting part 21 is convexly arranged on the end surface of the first end of the cutter head 2, a second through groove 32 matched with the second connecting part 21 is correspondingly arranged on the second end of the adjusting part 3, and the cutter head 2 is rotatably connected to the adjusting part 3 through a second rotating shaft 5 which is arranged on the side walls of the second connecting part 21 and the second through groove 32 in a penetrating manner.

In order to ensure that the cutter head 2 is matched with the intramedullary nail tail cap in the embodiment, a cutter tooth part 22 matched with the tail cap to be twisted is arranged on the outer wall of the second end of the cutter head 2, and the cutter tooth part 22 is provided with a plurality of cutter teeth 221 which are arranged at intervals along the outer wall of the cutter head 2.

In actual use, the tail caps of the intramedullary nails have different models, in order to more conveniently match the tail caps of different models, the screwdriver can be formed by welding two tail caps with different specifications together, and the tail caps can be switched to use according to the required specification when in use.

Claims

1. The utility model provides a universal screwdriver for tail cap on orthopedics intramedullary nail, includes cutter arbor (1) and tool bit (2), its characterized in that: the cutter arbor (1) with still be equipped with between tool bit (2) and be used for adjusting part (3) of tool bit (2) angle, tool bit (2) swing ground is connected on adjusting part (3), the swing of adjusting part (3) is connected on tool arbor (1), and, tool bit (2) with the swing direction of adjusting part (3) forms the contained angle.

2. The universal screwdriver as recited in claim 1, wherein: the tool bit (2) is perpendicular to the swinging direction of the adjusting piece (3).

3. The universal screwdriver as recited in claim 1, wherein: the end face of the first end of the adjusting piece (3) is convexly provided with a first connecting portion (31), the corresponding end of the cutter bar (1) is provided with a first through groove (11) matched with the first connecting portion (31), and the adjusting piece (3) is rotatably connected to the cutter bar (1) through a first rotating shaft (4) penetrating through the side walls of the first connecting portion (31) and the first through groove (11).

4. The universal screwdriver as recited in claim 1, wherein: the terminal surface epirelief of the first end of tool bit (2) is equipped with second connecting portion (21), the second end of regulating part (3) is seted up correspondingly and is led to groove (32) with this second connecting portion (21) assorted second, tool bit (2) are passed through second pivot (5) of wearing to establish on second connecting portion (21) and the logical groove (32) lateral wall of second and are connected on regulating part (3) with rotating.

5. The universal screwdriver as recited in any one of claims 1-4, wherein: the outer wall of the second end of the cutter head (2) is provided with a cutter tooth part (22) matched with the tail cap to be twisted, and the cutter tooth part (22) is provided with a plurality of cutter teeth (221) which are arranged at intervals along the outer wall of the cutter head (2).