CN212165876U - Universal traction bow - Google Patents

Abstract

The application discloses general traction bow, it includes: the Kirschner wire base body, the screw and the bow body which is formed into a U shape or a C shape; first threaded holes are respectively formed at two end parts of the bow body; the Kirschner wire base body is formed into a bolt shape, and a through hole for inserting the Kirschner wire is formed through the bolt shape in the axial direction; a Kirschner wire fixing bolt is arranged perpendicular to the through hole, and the end head of the Kirschner wire fixing bolt is used for abutting against the Kirschner wire in the through hole; the first threaded hole is combined with one of the Kirschner wire seat body and the screw according to the requirement; when the universal traction bow is used for skull traction, the first threaded hole is combined with a screw; when the universal traction bow is used to install a k-wire to traction the radicular or tibial tubercle, a k-wire seat is engaged in the first threaded hole. Through the unique kirschner wire pedestal of design, what the general traction bow of this application can select to combine is that the screw is still the kirschner wire pedestal, realizes from this that can be used for pulling the skull, also can be used to install behind the kirschner wire and pull root bone or shin bone tubercle.

Description

Universal traction bow

Technical Field

The application relates to a medical instrument, in particular to a universal traction bow.

Background

Traction bows are broadly divided into two categories. One is a traction bow equipped with kirschner wires, which is generally used for traction of radicular bones, tibial tubercles and the like, as shown in fig. 1, the traction bow comprises a bow body 10 and kirschner wire seat bodies 11 formed at two ends of the bow body 10, through holes 13 for inserting the kirschner wires are formed on the seat bodies 11; the seat body is also provided with a bolt 12 which is perpendicular to the through hole, and the end of the bolt 12 is abutted against the Kirschner wire in the through hole, thereby fixing the Kirschner wire in the through hole of the Kirschner wire seat body. Yet another type is a traction bow for cervical fractures, which is fixed to the skull, generally shaped as shown in fig. 2, and comprises a bow 20, in the end 21 of which a screw 22 is inserted, the tip of the screw 22 being intended to penetrate into the skull. Currently, the traction bow for cervical fractures cannot be fitted with kirschner wires and therefore cannot be used to pull the radicular or tibial tubercle.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, the present application aims to provide a universal traction bow which can be fixed to the skull through screws and can be used for installing a kirschner wire to be fixed to the root bone or the tibial tubercle, and the universality of the equipment is improved.

The universal traction bow of the present application, comprising: the Kirschner wire base body, the screw and the bow body which is formed into a U shape or a C shape; first threaded holes are respectively formed at two end parts of the bow body;

the Kirschner wire base body is formed into a bolt shape, and a through hole for inserting the Kirschner wire is formed through the bolt in the axial direction; a Kirschner wire fixing bolt is arranged perpendicular to the through hole, and the end head of the Kirschner wire fixing bolt is used for abutting against the Kirschner wire in the through hole;

the first threaded hole is combined with one of the Kirschner wire seat body and the screw according to the requirement;

when the universal traction bow is used for skull traction, the first threaded hole is combined with a screw;

when the universal traction bow is used for installing a kirschner wire to traction a root bone or a tibial tubercle, a kirschner wire seat body is combined in the first threaded hole.

Preferably, the two ends of the universal traction bow are respectively provided with an extension end head; each extension end is respectively provided with a second threaded hole;

the second threaded hole is combined with one of the Kirschner wire seat body and the screw according to the requirement;

when the universal traction bow is used for skull traction, the Kirschner wire seat body is combined in the second threaded hole;

the second threaded hole is engaged by a screw when the universal traction bow is used to install a k-wire to distract a radicular or tibial tuberosity.

Preferably, the extension tip is located below the first threaded bore.

Preferably, the extension tip is located forward or rearward of the first threaded bore.

Through the unique kirschner wire pedestal of design, what the general traction bow of this application can select to combine is that the screw is still the kirschner wire pedestal, realizes from this that can be used for pulling the skull, also can be used to install behind the kirschner wire and pull root bone or shin bone tubercle.

Drawings

FIG. 1 is a prior art traction bow for mounting a K-wire;

FIG. 2 is a prior art traction bow secured to the skull by screws;

FIG. 3 is a schematic structural view of the universal traction bow of the present application in a position for craniotomy traction;

FIG. 4 is a schematic structural view of the universal traction bow of the present application in a state in which it is used to install a K-wire traction pedicle or tibial joint;

fig. 5 is a schematic cross-sectional view of the kirschner wire holder of the universal traction bow of the present application.

Detailed Description

The universal traction bow of the present application will be described in detail with reference to the accompanying drawings.

The universal traction bow of the present application, comprising: a Kirschner wire holder body 24, a screw 22, and an arch body 20 formed into a U shape or a C shape; the bow 20 has first screw holes formed at both ends 21.

The k-wire holder body 24 is formed in a bolt shape, and as shown in fig. 5, a through hole 26 for inserting the k-wire is formed through the axial direction thereof; perpendicular to the through hole is mounted a k-wire fixing bolt 25, the tip of the k-wire fixing bolt 25 being adapted to abut against the k-wire in the through hole 26, thereby fixing the k-wire in the through hole.

The first threaded bore engages one of the k-wire housing 24 and the screw 22 as desired.

When the universal traction bow is used for cranial traction, a screw 22 is engaged in the first threaded hole as shown in fig. 3, which now performs the function of the traction bow shown in fig. 2.

When the universal traction bow is used to install k-wires to pull a radicular or tibial tuberosity, the first threaded hole incorporates a k-wire housing 24, as shown in fig. 4, which now performs the function of the traction bow shown in fig. 1.

The two end parts 21 of the universal traction bow are respectively provided with an extension end 23; each extension end 23 is respectively formed with a second threaded hole; the second threaded bore may be disposed along the length of the extension tip 23.

The second threaded bore engages one of the k-wire housing 24 and the screw 22 as desired.

When the universal distraction bow is used for cranial distraction, incorporated in the second threaded hole is the K-wire holder body 24.

The second threaded hole incorporates a screw 22 when the universal traction bow is used to install a k-wire to distract the radicular or tibial tuberosity.

The extension tip 23 is located below the first threaded hole.

Alternatively, the extension tip 23 is located forward or rearward of the first threaded bore.

When the anti-theft lock is used, a Kirschner wire base or a screw is installed in the first threaded hole according to the requirement; specifically, if skull traction is implemented, a screw is installed in the first threaded hole, the tip of the screw faces inwards, and the screw penetrates into the skull; if the traction is implemented by the root bone traction or the tibial tubercle traction, the first threaded hole is internally provided with a Kirschner wire base; the kirschner wire firstly passes through the kirschner wire base at one end, then passes through a bone to be punctured (namely a root bone or a tibial tubercle), and finally passes through the kirschner wire base at the other end, and the kirschner wire is fixed on the kirschner wire base through a kirschner wire bolt; the second threaded hole is used for storing unused Kirschner wire bases or screws.

Claims (4)

1. A universal traction bow, comprising: the Kirschner wire base body, the screw and the bow body which is formed into a U shape or a C shape; first threaded holes are respectively formed at two end parts of the bow body;

the Kirschner wire base body is formed into a bolt shape, and a through hole for inserting the Kirschner wire is formed through the bolt in the axial direction; a Kirschner wire fixing bolt is arranged perpendicular to the through hole, and the end head of the Kirschner wire fixing bolt is used for abutting against the Kirschner wire in the through hole;

the first threaded hole is combined with one of the Kirschner wire seat body and the screw according to the requirement;

when the universal traction bow is used for skull traction, the first threaded hole is combined with a screw;

when the universal traction bow is used for installing a kirschner wire to traction a root bone or a tibial tubercle, a kirschner wire seat body is combined in the first threaded hole.

2. The universal traction bow according to claim 1 wherein:

the two end parts of the universal traction bow are respectively provided with an extension end head; each extension end is respectively provided with a second threaded hole;

the second threaded hole is combined with one of the Kirschner wire seat body and the screw according to the requirement;

when the universal traction bow is used for skull traction, the Kirschner wire seat body is combined in the second threaded hole;

the second threaded hole is engaged by a screw when the universal traction bow is used to install a k-wire to distract a radicular or tibial tuberosity.

3. The universal traction bow according to claim 2 wherein:

the extension end is located below the first threaded hole.

4. The universal traction bow according to claim 2 wherein:

the extension end is positioned in front of or behind the first threaded hole.

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