CN219538464U - Anticreep formula fixing device for radius bone fracture - Google Patents

Abstract

The utility model discloses an anti-drop fixing device for radius fracture of the skull, which comprises a fixing plate, an elastic nail arranged in the marrow, a fixing mechanism, a holding cavity, a transverse plate, a screw thread, a nail body, a bending point and a fixing hole, wherein the fixing plate is provided with a through hole and an upward inclined fixing through hole, the elastic nail is arranged in the fixing plate, the holding cavity is arranged in the cap, the transverse plate is connected with the vertical plate at a radius angle, the screw thread is arranged on the inner surface of the fixing through hole, the elastic nail comprises the nail body, the surface of the nail body is coated with a coating with biocompatibility with the human bone, and the bending point for increasing the fixing stability is arranged at the upper end of the elastic nail.

Description

Anticreep formula fixing device for radius bone fracture

Technical Field

The utility model relates to the technical field of medical appliances, in particular to an anti-drop fixing device for radius fracture.

Background

The method is characterized in that a specific treatment scheme is adopted according to different parts and fracture severity of fracture, wherein the radius proximal fracture is usually caused by direct external force or torsional external force, and is characterized by local pain, swelling, limited movement and the like, if the fracture ends are not obviously displaced, plaster or support external fixation can be adopted, during fixation, drug treatment for promoting fracture healing is orally taken, if the fracture ends are obviously displaced, operation treatment is required, the main treatment means are 1 Kjeldahl fixation operation, 2-incision reduction steel plate internal fixation treatment, 3-external fixation frame, and the current method for fixing the radius proximal fracture mainly comprises three major types of Kirschner pins, minisize screws and corresponding micro nail plate systems, but the MasonIII type fracture and MasonII type fracture of the radius bone quality of the radius are easy to occur, the compression stress of the MasonIII type fracture pins and the corresponding micro nail plate of the radius bone is easy to be reduced, the fracture is easy to be influenced by the reduction of the fracture neck, the fracture loss of the corresponding compression stress is easy to occur, the fracture loss of the fracture neck is easy to occur, the fracture loss of the fracture is reduced, the fracture loss of the joint is more severely, the fracture loss is reduced, and the fracture loss of the joint is more serious, the fracture loss is reduced, the fracture loss is easy, the fracture loss is reduced, the fracture loss is more serious, and the fracture loss is caused by the fracture loss is more easily caused by the following the fracture loss, and the fracture loss is more difficult, the fracture loss is caused by the fracture loss, and the fracture loss is caused by the fracture and has the fracture loss, and has the fracture loss conditions.

Disclosure of Invention

Aiming at the defects in the prior art, the anti-drop fixing device for the radius bone fracture is provided, so that the phenomenon of nail withdrawal when the moving amplitude is large and the elbow joint function is seriously influenced in the internal fixation operation of the MasonII fracture and the MasonIII fracture of the radius bone in the proximal radius fracture is avoided.

In order to solve the technical problems, the technical scheme includes that the anti-drop fixing device for fracture of the radius skull comprises a T-shaped fixing plate which is arranged outside marrow and consists of a transverse plate and a vertical plate, a plurality of through holes which are used for a steel nail to penetrate through and fix the fixing plate on the outer surface of the radius are formed in the fixing plate, the steel nail is in threaded connection with the through holes, an upward-inclined fixing through hole is formed in the bottom of the vertical plate, the anti-drop fixing device further comprises an elastic nail which is arranged inside marrow and used for supporting an inner side column of the radius skull, and a fixing mechanism for fixing the elastic nail in the fixing through hole, wherein the fixing mechanism comprises a cap body which is arranged inside the fixing through hole, and a containing cavity which can be used for inserting the tail of the elastic nail is formed in the cap body.

Further, the transverse plate is connected with the vertical plate in a radius angle, the transverse plate is arc-shaped and is matched with the shape of the proximal end of the radius of a human body, and the vertical plate is arc-shaped and is matched with the shape from the proximal end of the radius to the middle end of the radius.

Further, the inner surface of the fixing through hole is provided with threads, and the cap body is in threaded connection with the fixing through hole.

Further, the elastic nail comprises a nail body, a coating which is biocompatible with human bones is coated on the surface of the nail body, the coating comprises a hydroxyapatite layer, the hydroxyapatite layer is arranged into a layered structure, the layered structure comprises a surface layer and a bottom layer, the surface layer is far away from the nail body and is of a continuous or discontinuous crystal phase structure, the bottom layer is attached to the nail body, and the bottom layer is a gradient coating with high crystallinity and a strong texture structure.

Further, a bending point for increasing the fixing stability is arranged at the upper end of the elastic nail.

The anti-drop type fixing device for radius fracture has the beneficial effects that the elastic nails are fixed on the fixing plate through the cap body, so that three-point support of the tops, the tails and the bending points of the elastic nails is realized, the fixing firmness is greatly improved, the bending points are arranged for auxiliary fixing, the stability is further improved, the fixing plate is matched with the radius, the fixing is convenient, the fixing through holes are arranged obliquely upwards, the elastic nails release the compressive stress, and the fixing of the elastic nails is convenient.

Drawings

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

FIG. 2 is a schematic view of the radius structure of the present utility model;

FIG. 3 is a schematic view of a fixing plate structure according to the present utility model;

fig. 4 is a schematic structural view of the elastic nail of the present utility model.

Detailed Description

The utility model is described in detail below with reference to the attached drawings and specific embodiments:

as shown in fig. 1-4, the anti-drop fixing device for radius bone fracture comprises a T-shaped fixing plate 2 which is arranged outside marrow and consists of a transverse plate 4 and a vertical plate 5, wherein a plurality of through holes 9 which are used for a steel nail 8 to penetrate are arranged on the fixing plate 2 and are used for fixing the fixing plate 2 on the outer surface of a radius 6, an upward inclined fixing through hole 10 is arranged at the bottom of the vertical plate 5, an elastic nail 1 which is arranged in marrow and is used for connecting broken bones is also arranged at the bottom of the vertical plate 5, the fixing through hole 10 is arranged to incline upwards and can fix the broken bones along the direction of the elastic needle 1, so as to be convenient for releasing compressive stress, the elastic nail 1 is convenient to fix, and a fixing mechanism for fixing the elastic nail 1 in the fixing through hole 10 is arranged in the fixing mechanism, the fixing mechanism comprises a cap body 3 which is arranged in the fixing through hole 10, a containing cavity 11 which is used for inserting the tail of the elastic nail 1 is arranged in the cap body 3, the transverse plate 4 and the vertical plate 5 are connected at an angle of the radius 6, the transverse plate 4 is arc-shaped and is matched with the shape of the proximal end of the radius 6, the vertical plate 5 is arc-shaped and is matched with the shape from the proximal end of the radius to the middle end of the radius, the fixing plate 2 is matched with the radius 6 and is convenient for fixing, threads are arranged on the inner surface of the fixing through hole 10, the cap 3 is in threaded connection with the fixing through hole 10, the elastic nail 1 comprises a nail body 12, a coating which has biocompatibility with human bones is coated on the surface of the nail body, the coating comprises a hydroxyapatite layer, the hydroxyapatite layer is in a layered structure, the layered structure comprises a surface layer and a bottom layer, the surface layer is far away from the nail body 12 and is in a continuous or discontinuous crystal phase structure, the bottom layer is attached to the nail body 12, the bottom layer is a gradient coating with high crystallinity and strong texture structure, a bending point 13 for increasing the fixing stability is arranged at the upper end of the elastic nail 1, the number of through holes arranged on the transverse plate 4 is 2-4, and the number of through holes 9 on the vertical plate 5 can be set according to actual conditions.

The application method of the utility model is as follows: firstly, making an incision at the fracture line 14 of the radius 6 of the forearm 7 of a patient, after attaching the fixing plate 2 to the radius 6, driving the steel nail 8 into the body of the radius 6 through the through hole 9 on the vertical plate 5, then driving the steel nail 8 into the top 15 of the radius (namely, into the cancellous bone below the cartilage) through the through hole 9 on the transverse plate 4, thereby fixing the fixing plate 2 and the radius 6, then driving the elastic nail 1 bent into a C shape into the body of the radius 6 from the fixing through hole 10, then driving the elastic nail 1 into the top 15 of the radius through the medullary cavity 16, enabling the middle part of the elastic nail 1 to be in contact with the inner wall of the medullary cavity 16, then cutting off redundant elastic nails, inserting the tail part of the elastic nail 1 into the accommodating cavity 31, screwing the cap body 3 into the fixing through hole 10, and fixing the cap body 10, at this time, fixing the elastic nail 1 and the fixing plate 2, and forming three-point support at the contact position of the elastic nail 1 and the top 15 of the medullary cavity 16 and the cap body 3, thereby greatly enhancing the longitudinal stability of the elastic nail 1, the elastic nail 1 is provided, and the elastic nail 1 is connected with the radius top 15, the elastic nail 1 can be conveniently reset, and all the fracture parts are positioned in the front of the utility model, and the fracture part is fixed firmly, and the fracture part is fixed conveniently and fixed inside the fracture part.

Of course, the above description is not intended to limit the utility model to the particular embodiments disclosed, but the utility model is not limited to the particular embodiments disclosed, as variations, modifications, additions or substitutions within the spirit and scope of the utility model will become apparent to those of ordinary skill in the art.

Claims (5)

1. The utility model provides a radius bone fracture is with anticreep formula fixing device which characterized in that: the intramedullary nail comprises a T-shaped fixing plate which is arranged outside marrow and consists of a transverse plate and a vertical plate, a plurality of through holes which are used for the steel nails to pass through are formed in the fixing plate and are used for fixing the fixing plate on the outer surface of a radius, the steel nails are in threaded connection with the through holes, an upward-inclined fixing through hole is formed in the bottom of the vertical plate, the intramedullary nail is further provided with an elastic nail which is arranged in marrow and is used for supporting an inner side column of the radius head, and a fixing mechanism which is used for fixing the elastic nail in the fixing through hole, the fixing mechanism comprises a cap body which is arranged in the fixing through hole, and an accommodating cavity which can be used for inserting the tail of the elastic nail is formed in the cap body.

2. The anti-drop fixation device for radius bone fracture according to claim 1, wherein: the transverse plate is connected with the vertical plate in a radius angle, the transverse plate is arc-shaped and is matched with the shape of the proximal end of the radius of a human body, and the vertical plate is arc-shaped and is matched with the shape from the proximal end of the radius to the middle end of the radius.

3. The anti-drop fixation device for radius fracture according to claim 2, wherein: the inner surface of the fixing through hole is provided with threads, and the cap body is in threaded connection with the fixing through hole.

4. A radius skull fracture fixation device according to claim 3, characterized in that: the elastic nail comprises a nail body, a coating which is biocompatible with human bones is coated on the surface of the nail body, the coating comprises a hydroxyapatite layer, the hydroxyapatite layer is arranged into a layered structure, the layered structure comprises a surface layer and a bottom layer, the surface layer is far away from the nail body and is of a continuous or discontinuous crystalline phase structure, the bottom layer is attached to the nail body, and the bottom layer is a gradient coating with high crystallinity and a strong texture structure.

5. The anti-drop fixation device for radius fracture according to claim 4, wherein: the upper end of the elastic nail is provided with a bending point for increasing the fixing stability.