CN209864015U - Internal ankle fracture fixing hook plate - Google Patents

Abstract

The utility model discloses an internal ankle fracture fixing hook plate, the top surface of the main plate comprises a first top surface, a second top surface and a third top surface, the first top surface is a plane, the second top surface is two inclined planes, the third top surface is two inclined planes, the angle A between the first top surface and the second top surface is 10-20 degrees, the angle B between the first top surface and the third top surface is 40-50 degrees, and through the design of the inclined planes, the stimulation to muscular tissues can be reduced, and the suture of doctors is facilitated; the mainboard bottom surface includes the bottom surface arcwall face and is located respectively the bottom surface straight face of bottom surface arcwall face, when this kind of structure and bone contact, can just can fix through less strength, simultaneously, this kind of arched structure can coincide with bone structure as far as possible, and furthest's realization limited contact design, can reduce the oppression to the periosteum, has increased the blood supply, reduces recovery time.

Description

Internal ankle fracture fixing hook plate

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to internal ankle fracture fixing hook plate.

Background

The medial malleolus plays an important role in maintaining the shape of the ankle acupoint and the stability of the ankle joint as part of the ankle joint. The fracture of the inner ankle can be divided into a simple type and a compound type, the latter refers to the combination of the injury of the outer ankle, the posterior ankle or the lower tibiofibula, and the like, if the treatment is not correct, the function of the ankle joint can be greatly influenced, traumatic ankle joint osteoarthritis is easy to occur in the later period, the long-term pain of the ankle joint is caused, the movement of the ankle joint is limited, and the life quality of a patient is seriously influenced. The type of fracture of the medial malleolus varies, as do the treatment regimens. For simple non-displacement internal ankle fracture, conservative treatment-plaster fixation can be adopted, but the conservative treatment has the possibility of secondary displacement of fracture; for simple displacement type internal ankle fractures and complex internal ankle fractures, surgical treatment is usually required to obtain anatomical reduction and strong fixation. For the simple internal ankle fracture with large fracture blocks, hollow screws or Kirschner wires and steel wire tension bands can be selected for fixation, and for the internal ankle fracture with small fracture blocks, the hollow screws can cause the fracture blocks to burst and cannot be effectively fixed, so that the Kirschner wires and the tension bands are mostly adopted for fixation. For complicated internal ankle fractures (the broken pieces of the fractures are more than 2), the treatment is difficult, anatomical reduction and strong fixation cannot be implemented no matter in hollow screw fixation or in fixation of a Kirschner wire and a steel wire tension band, a plaster support is usually required for auxiliary fixation for 4-6 weeks, a patient cannot perform ankle joint function rehabilitation exercise in the early stage, and the possibility of traumatic osteoarthritis is high in the later stage.

In order to solve the above existing technical problems, chinese patent document CN201520686598.4 discloses a medial malleolus steel plate fixing system, which comprises a medial malleolus fixing steel plate and a compression locking screw; the method is characterized in that: the medial malleolus fixing steel plate comprises a straight section and a bent section, and the shape of the inner surface of the medial malleolus fixing steel plate corresponds to the shape of the medial malleolus of a human body; the straight section and the bent section of the medial malleolus fixing steel plate are both provided with at least one pressurizing locking hole matched with the pressurizing locking screw; internal threads are arranged in the pressurizing locking hole; the pressurizing locking screw comprises a screw rod and a head, wherein an embedded thread for screwing in the fractured bone is arranged on the screw rod, and a locking thread matched with the pressurizing locking hole is arranged at the head of the pressurizing locking screw. The structure can be driven into the compression locking screw through the compression locking hole, the screw not only has a tension effect, but also can be locked on the steel plate to form three-in-one stable fixation of the nail, the plate and the bone surface, however, the straight section in the document is not consistent with the attached drawing, so that the text is not satisfactory and is not clear; meanwhile, the structure of the straight section is easy to press periosteum when contacting with bones, so that blood supply is reduced, and the recovery time is prolonged.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an ankle fracture fixation hook plate, it includes: the hook plate comprises a hook plate main plate and two hook parts which are connected with each other, wherein the two hook parts are respectively positioned on two sides of the hook plate main plate;

the hook plate main plate comprises a main plate top surface and a main plate bottom surface, the main plate top surface comprises a first top surface, a second top surface and a third top surface, the first top surface is a plane, the second top surface is two inclined surfaces, the third top surface is two inclined surfaces, an angle A between the first top surface and the second top surface is 10-20 degrees, and an angle B between the first top surface and the third top surface is 40-50 degrees; the bottom surface of the main board comprises a bottom surface arc-shaped surface and bottom surface planes respectively positioned on the bottom surface arc-shaped surface;

the hook part comprises an elongated bent part and a short part which are connected with each other, the other end of the elongated bent part is connected with the hook plate main plate, the radian radius of the elongated bent part is 8-16mm, the tangent line of the connection part of the elongated bent part and the short part is superposed with the hook plate main plate, and the angle between the tangent line and the short part is an acute angle;

the hook plate main plate is provided with at least one coaxial combination hole or a pressurizing hole.

Furthermore, symmetrical concave structures are formed on two sides of the hook plate main body.

Further, each concave structure comprises a straight arc surface and an inclined arc surface.

Furthermore, the end part of the hook plate main plate, which is far away from the hook part, is in an arc design.

Furthermore, the hook plate main plate is provided with a pressurizing hole, a coaxial combination hole and a Kirschner wire hole.

Furthermore, the hook plate main plate is provided with a pressurizing hole, two coaxial combination holes and two Kirschner wire holes.

Compared with the prior art, the technical scheme of the utility model have following advantage:

(1) the utility model discloses an ankle fracture fixed hook plate, mainboard top surface includes first top surface, second top surface and third top surface, first top surface is the plane, the second top surface is two inclined planes, the third top surface is two inclined planes, the angle A between first top surface and the second top surface is 10-20 degrees, the angle B between first top surface and the third top surface is 40-50 degrees, through this kind of inclined plane design, can reduce the stimulation to musculature, and be favorable to the doctor to sew up; the mainboard bottom surface includes the bottom surface arcwall face and is located respectively the straight face of bottom surface arcwall face, when this kind of structure and bone contact, can just can fix through less strength, simultaneously, this kind of arched structure can coincide with bone structure as far as possible, and furthest's realization limited contact design, can reduce the oppression to the periosteum, has increased the blood supply, reduces recovery time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a front view of the hook plate for fixing an internal ankle fracture of the present invention;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is a view from A-A in FIG. 1 (ratio 2: 1);

FIG. 4 is a schematic structural view of an internal ankle fracture fixation hook plate of the present invention;

FIG. 5 is a view showing the state of the hook plate for fixing an internal ankle fracture according to the present invention;

the reference numbers in the figures denote: 1-hook plate main board; 11-a first top surface; 12-a second top surface; 13-a third top surface; 14-bottom surface arc; 15-bottom surface straight surface; 21-an elongated bend; 22-short section; 51-straight arc surface; 52-oblique arc surface; 2-a hook section; 3-coaxial coupling holes; 4-a pressurized hole; 5-a concave structure; 6-Kirschner wire hole.

Detailed Description

The present invention now will be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. The embodiments in the present invention, other embodiments obtained by a person of ordinary skill in the art without creative work, all belong to the protection scope of the present invention.

Example 1

As shown in fig. 1-3, the present embodiment discloses an internal ankle fracture fixation hook plate, which comprises a hook plate main plate 1 and two hook portions 2 connected with each other, wherein the two hook portions 2 are respectively located at two sides of one end portion of the hook plate main plate 1; the hook plate main body 1 is a straight plate, the hook plate main plate 1 comprises a main plate top surface and a main plate bottom surface, the main plate top surface comprises a first top surface 11, a second top surface 12 and a third top surface 13, the first top surface 11 is a plane, the second top surface 12 is two inclined surfaces, the third top surface 13 is two inclined surfaces, an angle A between the first top surface 11 and the second top surface 12 is 10-20 degrees, preferably 15 degrees, and an angle B between the first top surface 11 and the third top surface 13 is 40-50 degrees, preferably 45 degrees; the bottom surface of the main board comprises a bottom surface arc-shaped surface 14 and bottom surface planes 15 respectively positioned on the bottom surface arc-shaped surface 14; the hook part 2 comprises an elongated bent part 21 and a short part 22 which are connected with each other, the other end of the elongated bent part 21 is connected with one end part of the main plate 1 of the hook plate, the radius of the elongated bent part 21 is 8-16mm, preferably 12.5mm, and the angle C of the elongated bent part 21 is 40-60 degrees, preferably 52 degrees; the tangent line of the connecting part of the elongated bent part 21 and the short part 22 is superposed with the hook plate main plate 1, or the two are superposed in parallel, and the angle between the two and the short part 22 is an acute angle; the specific shape of the elongated bending part 21 is not particularly limited, the preferred section is a trapezoidal structure, the structure can ensure the strength and also conforms to the design principle of the bone plate, the circular arc design can ensure the strength, hook the bottom of the medial malleolus, reduce the contact with the periosteum, reduce the oppression on the periosteum and increase the blood supply; the structure of the short part is not limited, for example, the cross section is in a trapezoidal structure, so that the tip can be prevented from further damaging the periosteum.

The hook plate main plate 1 is provided with a pressurizing hole 4, two coaxial combination holes 3 and two Kirschner wire holes 6, the structure of the pressurizing hole 4 can be the structure of the existing pressurizing hole, in the embodiment, the pressurizing hole 4 is of a slender and threadless structure and is divided into two layers, one layer is a straight hole and the other layer is a spherical cambered surface hole, the structure is convenient for a doctor to adjust the position of the hook plate, and the pressurizing hole 4 is arranged at one end, far away from the hook part, of the hook plate main plate 1, so that the hook plate is fixed to the best position while the position of the hook plate is adjusted; the coaxial combination hole 3 is a full threaded hole or a partial threaded hole, and a locking screw or a cortical screw can be used to realize multiple functions.

Symmetrical concave structures 5 are formed on two sides of the hook plate main body 1, the concave structures 5 are preferably arranged on two sides of the Kirschner wire hole 6, each concave structure 5 comprises a straight arc surface 51 and an inclined arc surface 52, and the inclined arc surface 52 is preferably a spherical arc surface. Further, the end part of the hook plate main plate 1 far away from the hook part 2 is designed in an arc shape, and preferably forms a spherical arc surface structure at the end part. The design of the spherical cambered surface structure is to reduce the stimulation to the muscle tissue and facilitate the suture of doctors.

Example 2

As shown in fig. 4, the present embodiment discloses an ankle fracture fixation hook plate, which is modified from embodiment 1, and is different from embodiment 1 in that: the hook plate main plate 1 is provided with a pressurizing hole 4, a coaxial combination hole 3 and a Kirschner wire hole 6.

As shown in fig. 5, the hook plate for fixing the fracture of the medial malleolus is attached to the medial malleolus, and when the hook plate for fixing the fracture of the medial malleolus is used, the hook plate is firstly dissected according to the affected part and then the fractured part is reset, then the hook plate for fixing the fracture of the medial malleolus is simply deformed by using an instrument according to the specific structure of the medial malleolus, then the hook plate is applied to the medial malleolus, fixed by using a compression locking screw through a compression hole, fixed by using a locking screw or a cortical screw, and finally driven.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims (6)

1. An internal ankle fracture fixation hook plate, comprising: the hook plate comprises a hook plate main plate and two hook parts which are connected with each other, wherein the two hook parts are respectively positioned on two sides of the hook plate main plate;

the hook plate main plate comprises a main plate top surface and a main plate bottom surface, the main plate top surface comprises a first top surface, a second top surface and a third top surface, the first top surface is a plane, the second top surface is two inclined surfaces, the third top surface is two inclined surfaces, an angle A between the first top surface and the second top surface is 10-20 degrees, and an angle B between the first top surface and the third top surface is 40-50 degrees; the bottom surface of the main board comprises a bottom surface arc-shaped surface and bottom surface planes respectively positioned on the bottom surface arc-shaped surface;

the hook part comprises an elongated bent part and a short part which are connected with each other, the other end of the elongated bent part is connected with the hook plate main plate, the radian radius of the elongated bent part is 8-16mm, the tangent line of the connection part of the elongated bent part and the short part is superposed with the hook plate main plate, and the angle between the tangent line and the short part is an acute angle;

the hook plate main plate is provided with at least one coaxial combination hole or a pressurizing hole.

2. The medial ankle fracture fixation hook plate according to claim 1, wherein both sides of the hook plate body form a symmetrical concave structure.

3. The medial ankle fracture fixation hook plate according to claim 2, wherein each concave structure comprises a straight arc surface and a sloped arc surface.

4. The medial ankle fracture fixation hook plate according to any one of claims 1 to 3, wherein the end of the main plate distal from the hook portion is of arcuate design.

5. The medial ankle fracture fixation hook plate according to claim 4, wherein said hook plate main plate is provided with a pressurization hole, a coaxial coupling hole and a kirschner wire hole.

6. The medial ankle fracture fixation hook plate according to claim 4, wherein said hook plate main plate is provided with one pressurizing hole, two coaxial coupling holes and two Kirschner wire holes.