CN219331873U

CN219331873U - Aiming bracket of intramedullary nail for treating femur fracture

Info

Publication number: CN219331873U
Application number: CN202223504197.1U
Authority: CN
Inventors: 张玉南
Original assignee: Changzhou Wujin Jin Xing Da Medical Instrument Co ltd
Current assignee: Changzhou Wujin Jin Xing Da Medical Instrument Co ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-07-14
Anticipated expiration: 2032-12-28

Abstract

The utility model relates to the technical field of aiming brackets of intramedullary nails, in particular to an aiming bracket of an intramedullary nail for treating femoral fracture, which comprises a grab handle, an angle aiming bracket, an aiming guide rod, a far-end positioning bracket and an intramedullary nail; the front side and the rear side of the upper end of the grab handle are respectively connected with an angle aiming bracket and an aiming guide rod, and the lower end of the grab handle is connected with an intramedullary nail through a hanging bolt in a threaded manner; the tail end of the aiming guide rod is provided with a far-end locating rack. The aiming bracket designed by the utility model is an aiming bracket which is directly provided with the angle aiming bracket and the far-end positioning bracket around the aiming guide rod, can adjust the embedding angle of the locking nails according to the requirement, reduces the burden of the grab handle, can also reduce unnecessary trouble for patients and doctors, avoids the possibility of secondary operation after operation, provides good treatment for the patients, provides convenient operation for the doctors, and has light use, high efficiency and easy popularization.

Description

Aiming bracket of intramedullary nail for treating femur fracture

Technical Field

The utility model relates to the technical field of aiming brackets of intramedullary nails, in particular to an aiming bracket of an intramedullary nail for treating femoral fracture.

Background

Current interlocking intramedullary nail products include a main nail inserted into the intramedullary canal in the axial direction of the canal and a plurality of locking nails perpendicular to or passing through the main nail at other angles, such as the transverse main nail in fig. 2, and the longitudinal arrangement of locking nails and lag screws. Through the three-dimensional interlocking mode of a plurality of locking nails and lag screws, especially a plurality of locking nails in different planes, the anti-rotation function of the main nail can be greatly enhanced, and the indication of the main nail can be greatly enlarged. But the intramedullary nail operation is performed by an interventional operation in which a small incision is made at one end of the intramedullary canal and the intramedullary canal is inserted. After the main nail is inserted into the medullary cavity, the position of the nail locking hole cannot be observed by naked eyes. Since the plurality of locking pin holes are distributed at different angles at the end of the main pin, different auxiliary means are required to aim at the locking pin holes on the main pin inserted into the medullary cavity during the operation process, so that the locking pin can be accurately inserted into the locking pin holes. The common intramedullary nail is connected with the grab handle through a hanging bolt, and then the grab handle is matched and connected with the aiming support through a series of conversion supports, so that aiming is required in a mode of adopting a conversion angle to meet different angle requirements, and various different conversion supports are overlapped. In order to ensure the accuracy and stability of aiming, all the components of the instrument are connected in a precisely positioned and fastened mode, and as a plurality of instruments are connected, in order to ensure that the instrument cannot deform in the use process, the handle and the conversion support are required to be widened and thickened, and the thick handle and the conversion support are required to be overlapped, so that all the aiming brackets are overlapped, and the whole set of aiming instrument is very complicated and heavy in use. In general, the intramedullary nails currently used in domestic treatment of cases of Fanken fracture are older. When the traditional femur reverse-beating intramedullary nail is used for treating distal complex fracture and middle-section fracture accompanied with distal comminuted fracture, the intramedullary nail is troublesome to treat, the fixing effect is poor, the phenomenon of paint joint deviation often occurs, and the possibility of secondary operation can occur. On implantation instrument, the instrument is many, troublesome operation, and is high to doctor's operation requirement, and above-mentioned sighting instrument is loaded down with trivial details when using, needs dismouting collocation when needing to adjust the sighting, influences sighting efficiency.

At present, a aiming support which is directly arranged around an aiming guide rod and can adjust the embedding angle of a locking nail according to requirements is needed, the burden of a grab handle is reduced, unnecessary troubles for a patient and a doctor can be reduced, the possibility of secondary operation is avoided after the operation, the patient is treated well, and the doctor is operated conveniently.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides an aiming bracket of an intramedullary nail for treating femoral fracture.

The technical scheme adopted for solving the technical problems is as follows: an aiming bracket of an intramedullary nail for treating femoral fracture comprises a grab handle, an angle aiming bracket, an aiming guide rod, a far-end positioning bracket and an intramedullary nail; the front side and the rear side of the upper end of the grab handle are respectively connected with an angle aiming bracket and an aiming guide rod, and the lower end of the grab handle is connected with an intramedullary nail through a hanging bolt in a threaded manner; the tail end of the aiming guide rod is provided with a far-end locating rack.

According to another embodiment of the utility model, the grab handle is of a U-shaped structure, two groups of femur drill sleeves are arranged in the middle of the upper end, and an anti-slip groove convenient to grasp is arranged in the middle of the upper end.

According to another embodiment of the utility model, the handle is fixed with the angle aiming bracket through bolts, and the angle aiming bracket is provided with a femur drill sleeve and a locating piece.

According to another embodiment of the utility model, the front side of the upper end of the grab handle is fixed with a middle rod through a bolt, the upper part of the middle rod is fixed with a targeting guide rod through a bolt, the middle rod and the targeting guide rod are uniformly provided with adjusting holes for adjusting the length, and the tail end of the targeting guide rod is provided with two groups of femur drill sleeves.

According to another embodiment of the utility model, the distal positioning frame is fixedly connected to the tail end of the aiming guide rod through a positioning rod and a bolt, is perpendicular to the aiming guide rod and abuts against the intramedullary nail; two groups of femur drill sleeves and one group of locating pieces are arranged on the distal locating frame.

According to another embodiment of the present utility model, the grab handle, the angle aiming bracket, the aiming guide rod and the distal positioning bracket are made of carbon fiber.

The utility model has the advantages that the angle aiming bracket and the far-end positioning bracket are directly arranged around the aiming guide rod, the locking nail implantation angle can be adjusted according to the requirement, the burden of the grab handle is lightened, the unnecessary trouble for patients and doctors can be lightened, the possibility of secondary operation is avoided after the operation, the patients are treated well, the doctors are operated conveniently, and the utility model has light use, high efficiency and easy popularization.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is a view showing the effect of the assembly of the intramedullary nail after use of the present utility model.

In the figure, 1, a grab handle, 2, an angle aiming bracket, 3, an aiming guide rod, 4, a far-end positioning bracket, 5, an intramedullary nail, 6, a hanging bolt, 7, a femur drill sleeve, 8, an anti-skid groove, 9, a bolt, 10, a positioning sheet, 11, an intermediate rod, 12, a positioning rod, 13 and an adjusting hole.

Detailed Description

Fig. 1 is a schematic structural view of the present utility model, an aiming bracket of an intramedullary nail for treating femur fracture, comprising a grab handle 1, an angle aiming bracket 2, an aiming guide rod 3, a distal positioning bracket 4 and an intramedullary nail 5; the front side and the rear side of the upper end of the grab handle 1 are respectively connected with an angle aiming bracket 2 and an aiming guide rod 3, and the lower end is connected with an intramedullary nail 5 through a hanging bolt 6 in a threaded connection manner; the tail end of the aiming guide rod 3 is provided with a far-end positioning frame 4.

According to another embodiment of the present utility model, the grab handle 1 has a U-shaped structure, two sets of femur drill sleeves 7 are provided in the middle of the upper end, and an anti-slip groove 8 is provided in the middle of the upper end, which is convenient for a doctor to hold, and prevents slipping during operation.

According to another embodiment of the present utility model, the grab handle 1 and the angle aiming block 2 are fixed by bolts 9, and the angle aiming block 2 is provided with a femur drill sleeve 7 and a locating piece 10.

Specifically, the angle aiming block 2 has a plurality of different angles for selection, and can be installed according to the angle analysis of the required implantation locking direction after the X-ray film is taken, then the proper implantation position is conveniently selected by combining the femur drill sleeve 7 and the locating plate 10, especially because the intramedullary nail 5 is generally provided with a dynamic interlocking hole or a pressurizing hole, the hole is generally elliptical, and the combination of the femur drill sleeve 7 and the locating plate 10 can well select the proper position of the elliptical hole for implantation of the locking nail or the lag screw.

According to another embodiment of the present utility model, further comprises a middle rod 11 fixed on the front side of the upper end of the grab handle 1 through a bolt 9, an aiming guide rod 3 is fixed above the middle rod 11 through the bolt 9, adjusting holes 13 for adjusting the length are uniformly formed in the middle rod 11 and the aiming guide rod 3, and two groups of femur drill sleeves 7 are arranged at the tail end of the aiming guide rod 3.

Specifically, the length of the intramedullary nail 5 is selected according to the length of the femur of different persons, and then the appropriate position is adjusted by adjusting the hole 13.

According to another embodiment of the present utility model, the distal positioning frame 4 is fixedly connected to the tail end of the aiming guide rod 3 through a positioning rod 12 and a bolt 9, is perpendicular to the aiming guide rod 3 and abuts against the intramedullary nail 5; two groups of femur drill bushings 7 and a group of positioning pieces 10 are arranged on the distal positioning frame 4.

According to another embodiment of the present utility model, further comprises that the grab handle 1, the angle aiming bracket 2, the aiming guide rod 3 and the distal positioning bracket 4 are made of carbon fiber.

In the specific operation process, after the implantation point is selected, firstly, the intramedullary nail 5 is implanted into the femur, the grab handle 1 is locked by the hanging bolt 6, then, the aiming guide rod 3 is mounted on the grab handle 1 through the middle rod 11 by suspending the proper adjusting hole 13, the angle aiming bracket 2 with proper angle is selected to be mounted on the grab handle 1, and the far-end positioning bracket 4 is fixed at the tail end of the aiming guide rod 3 through the positioning rod 12; then the femur drill sleeve 7 is arranged in the required hole to discharge soft tissues, then the femur drill sleeve is penetrated and screwed into the locking screw and the lag screw, the grab handle 1 is taken down after the completion, the top cap of the intramedullary nail 5 is jacked in, and the operation is finished to clean the tail.

The above description is illustrative of the utility model and is not to be construed as limiting, and it will be understood by those skilled in the art that many modifications, changes or equivalents may be made without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. An aiming bracket of an intramedullary nail for treating femoral fracture is characterized by comprising a grab handle (1), an angle aiming bracket (2), an aiming guide rod (3), a far-end positioning bracket (4) and an intramedullary nail (5); the front side and the rear side of the upper end of the grab handle (1) are respectively connected with an angle sighting frame (2) and a sighting guide rod (3), and the lower end is connected with an intramedullary nail (5) through a hanging bolt (6) in a threaded connection manner; the tail end of the aiming guide rod (3) is provided with a far-end locating rack (4).

2. Aiming bracket for intramedullary nails for the treatment of femoral fractures according to claim 1, characterized in that the grab handle (1) is of a U-shaped structure, the middle of the upper end is provided with two groups of femur drill bushings (7), and the middle end is provided with an anti-slip groove (8) which is convenient to grasp.

3. Aiming bracket for intramedullary nails for the treatment of femoral fractures according to claim 2, characterized in that the grab handle (1) is fixed with the angle aiming bracket (2) by means of bolts (9), and the angle aiming bracket (2) is provided with a femur drill bushing (7) and a locating piece (10).

4. The aiming bracket for the intramedullary nail for treating femoral fracture according to claim 2, wherein an intermediate rod (11) is fixed on the front side of the upper end of the grab handle (1) through a bolt (9), an aiming guide rod (3) is fixed above the intermediate rod (11) through the bolt (9), adjusting holes (13) for adjusting the length are uniformly formed in the intermediate rod (11) and the aiming guide rod (3), and two groups of femur drill sleeves (7) are arranged at the tail end of the aiming guide rod (3).

5. Aiming bracket for intramedullary nails for the treatment of femoral fractures according to claim 1, characterized in that the distal positioning frame (4) is fixedly connected to the tail end of the aiming guide rod (3) through a positioning rod (12) and a bolt (9), is perpendicular to the aiming guide rod (3) and abuts against the intramedullary nail (5); two groups of femur drill sleeves (7) and one group of positioning pieces (10) are arranged on the distal positioning frame (4).

6. The aiming bracket for the intramedullary nail for treating femur fracture according to claim 5, wherein the grab handle (1), the angle aiming bracket (2), the aiming guide rod (3) and the distal positioning bracket (4) are made of carbon fiber.