CN212913351U

CN212913351U - External fixator for tibia locking nail plate

Info

Publication number: CN212913351U
Application number: CN202020834079.9U
Authority: CN
Inventors: 王德伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2021-04-09
Anticipated expiration: 2030-05-19

Abstract

The utility model discloses a shin bone locking nail board external fixation ware, including fixed plate and locking screw, evenly be provided with the screw hole on the fixed plate, have the screw thread, install locking screw in the screw hole, the screw hole can be twisted to the locking screw head and lock fixedly, the fixed plate just is just to being on a parallel with the shin bone preceding inboard bone side for the inner bottom cambered surface, the fixed plate side is on a parallel with the shin bone leading edge for all side cambered surfaces, unanimous with shin bone axle radian. The thickness of the plate at the two rows of the nails at the far section is 1.5 times of that of the plate at the near section, so that the good fixing strength of the nail plate at the far section is ensured. The utility model discloses can compromise the advantage of external fixation frame (fracture external fixation), compromise the advantage of locking coaptation board (fracture internal fixation) again, shin bone locking nail board external fixation ware treatment shin bone far-end fracture operation, the closed resets or the incision that creates a little resets, has both embodied the wicresoft theory, has embodied quick recovered surgery theory again, through biomechanics survey, has good biomechanics stability.

Description

External fixator for tibia locking nail plate

Technical Field

The utility model relates to the field of medical treatment, especially, relate to a shin bone locking nail board external fixation ware.

Background

Open tibial fractures are one of the common clinical fracture types, and complications such as poor wound healing, bone exposure, infection and the like easily occur when steel plates are used for internal fixation, so that the external fixator plays an important role. The external fixing frame is poor in fixing stability and easy to cause bone nonunion, in addition, the external fixing frame is large in size, heavy and inconvenient for daily life, personal hygiene and dressing are obstructed, complications such as nail path infection and looseness are easy to occur, particularly, fracture of a proximal section or a distal section of tibia is easy to occur, a fracture end close to a joint is short, an external fixing frame needle cannot be fixed at a metaphysis end, joint crossing fixing is often needed, and irreversible joint stiffness and dysfunction are often caused by long-time fixing.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an external fixator of shin bone locking nail board in order to solve above-mentioned problem, the utility model discloses can compromise the advantage of external fixation frame, compromise the characteristics of locking coaptation board again, treatment shin bone short-range section or far away section fracture technique have both embodied the wicresoft theory, have embodied quick recovered surgery theory again, through biomechanics survey, have good biomechanics stability.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

the utility model provides a shin bone locking nail board external fixation ware, includes the fixed plate, evenly be provided with the screw hole on the fixed plate, install the screw in the screw hole, the fixed plate is just for the inner bottom cambered surface to shin bone department, the fixed plate side is on a parallel with shin bone department for week side cambered surface.

Further setting: the fixing plate and the screws are made of titanium alloy materials, the screw holes at one end, connected with the metaphysis end, of the fixing plate are arranged at 5-6 positions, and the rest screw holes are located at the central line position of the fixing plate.

So set up, adopt titanium alloy material, be close with the elastic modulus of bone tissue, have good fatigue resistance, reduce stress and shelter from, play the effect of elastic fixation, make the fixer firmly fixed to the shin bone, improve stability, be favorable to articular early function exercise and union fracture.

Further setting: the radian of the inner bottom cambered surface is similar to the radian of the inner side of the tibia.

So set up, make the screw can fix at the distal tibial segment, dissect the matching with the distal tibial segment.

Further setting: the radian of the circumferential side cambered surface is similar to that of the tibia.

So set up, make the fixed plate can simulate the shin bone and support, has stronger bionical performance, and the outward appearance is light and handy brief simultaneously, does not influence the clothing and wears.

Further setting: the screw is connected with the fixing plate through threads.

So set up, be convenient for right the screw is installed and is dismantled.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the fixing plate is firmly combined with the locking screw, and the multiple screws at the metaphysis are fixed in multiple angles, so that good biomechanical stability can be provided, the stability of the fixing plate is obviously superior to that of a common external fixing frame, and the early function exercise and fracture healing of the joint are facilitated;

2. after operation, partial screws can be removed periodically according to the fracture healing condition in the reexamination, so that the stress shielding of the fracture end is gradually reduced, and a good biomechanical environment is created for fracture healing;

3. the fixator is made of a titanium alloy material, has the elastic modulus close to that of bone tissues, has good fatigue resistance, reduces stress shielding, plays a role in elastic fixation, has good biocompatibility and corrosion resistance, and reduces the chance of nail mouth infection;

4. the interference to local soft tissues is small, periosteum is not peeled off, the blood circulation of the local soft tissues is fully protected, no internal articles exist, the infection chance is obviously reduced, and the fracture healing is facilitated;

5. the appearance is light and simple, the wearing of clothes is not influenced, and the external fixing frame is obviously superior to the common external fixing frame;

6. compared with internal fixation, the burden of secondary operation is reduced.

Drawings

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

FIG. 1 is an isometric view of an external tibial locking nail plate fixator of the present invention;

fig. 2 is a front view schematically illustrating the external fixator according to the present invention;

fig. 3 is a schematic top view of the external fixator according to the present invention.

The reference numerals are explained below:

1. a fixing plate; 2. screw holes; 3. a screw; 4. an inner bottom cambered surface; 5. a circumferential side cambered surface.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 1-3, an external fixator for a locking nail plate of a tibia comprises a fixing plate 1, wherein screw holes 2 are uniformly formed in the fixing plate 1, screws 3 are fixedly mounted in the screw holes 2, the screws 3 are mounted in the screw holes 2, the tibia is fixed, the fixing plate 1 is an inner bottom cambered surface 4 facing the tibia, and a side surface of the fixing plate 1 parallel to the tibia is a peripheral side cambered surface 5.

Preferably: the fixing plate 1 and the screws 3 are made of titanium alloy materials, the screw holes 2 at one end, connected with the metaphysis end, of the fixing plate 1 are arranged at 5-6 positions, and the rest screw holes 2 are positioned at the central line position of the fixing plate 1 and are made of titanium alloy materials, so that the titanium alloy materials are close to the elastic modulus of bone tissues, the fatigue resistance is good, the stress shielding is reduced, the elastic fixing effect is achieved, the fixator can firmly fix the tibia, the stability is improved, and the early function exercise and fracture healing of joints are facilitated; the radian of the inner bottom cambered surface 4 is similar to the radian of the inner side of the tibia, so that the screw 3 can be fixed on the far section of the tibia and is anatomically matched with the far section of the tibia; the radian of the circumferential side cambered surface 5 is similar to that of the tibia, so that the fixing plate 1 can simulate the tibia to support, has strong bionic performance, is light and simple in appearance, and does not influence clothes; the screw 3 is connected with the fixing plate 1 through threads, so that the screw 3 can be conveniently mounted and dismounted.

The utility model discloses theory of operation and use flow: the fixing plate 1 is placed on the front inner side of the tibia, the inner bottom arc surface 4 is matched with the shank surface, the distance between skin of the shank is about 2 cm, the circumferential side arc surface 5 is aligned with the radian of the tibia, the screws 3 penetrate through the screw holes 2 to connect and fix the tibia, all the screws 3 are fixed on the far section of the tibia and are anatomically matched with the far section of the tibia, and meanwhile, the multiple screws 3 are fixed at the metaphysis end of the fixing plate 1 in a multi-angle mode, so that good biomechanical stability is provided.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. The utility model provides a shin bone locking nail board external fixation ware which characterized in that: including fixed plate (1), evenly be provided with screw hole (2) on fixed plate (1), install screw (3) in screw hole (2), fixed plate (1) is just for interior bottom cambered surface (4) to shin bone department, fixed plate (1) side is on a parallel with shin bone department for week side cambered surface (5).

2. The external tibial locking nail plate fixator of claim 1, wherein: the fixing plate (1) and the screws (3) are made of titanium alloy materials, 5-6 parts are arranged on the screw holes (2) connected with the metaphysis of the fixing plate (1), and the rest screw holes (2) are located at the central line of the fixing plate (1).

3. The external tibial locking nail plate fixator of claim 1, wherein: the radian of the inner bottom cambered surface (4) is similar to that of the inner side of the tibia.

4. The external tibial locking nail plate fixator of claim 1, wherein: the radian of the circumferential side cambered surface (5) is similar to that of a tibia.

5. The external tibial locking nail plate fixator of claim 1, wherein: the screw (3) is in threaded connection with the fixing plate (1).