CN111568524A

CN111568524A - External fixator for tibia locking nail plate and use method thereof

Info

Publication number: CN111568524A
Application number: CN202010422646.4A
Authority: CN
Inventors: 王德伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2020-08-25

Abstract

The invention discloses a tibia locking nail plate external fixator and a use method thereof, wherein the tibia locking nail plate external fixator comprises a fixing plate and locking screws, screw holes are uniformly formed in the fixing plate and provided with threads, the locking screws are installed in the screw holes and can be screwed into the screw holes for locking and fixing, the fixing plate is an inner bottom cambered surface which is opposite to and parallel to the front inner side bone surface of a tibia, the side surface of the fixing plate is a peripheral side cambered surface which is parallel to the front edge of the tibia, and the side surface of the fixing plate is consistent with the radian of a. The invention can not only take the advantages of the external fixing frame (external fixation of fracture) into consideration, but also take the advantages of the locking bone fracture plate (internal fixation of fracture) into consideration, the external fixing device of the tibial locking nail plate is used for treating the operation of distal tibial fracture, and closed reduction or minimally invasive incision reduction, thereby not only embodying the minimally invasive concept, but also embodying the concept of rapid rehabilitation surgery, and having good biomechanical stability through biomechanical determination.

Description

External fixator for tibia locking nail plate and use method thereof

Technical Field

The invention relates to the field of medical treatment, in particular to a tibia locking nail plate external fixator and a using method thereof.

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.

Disclosure of Invention

The invention aims to solve the problems and provides a tibia locking nail plate external fixator and a using method thereof, the tibia locking nail plate external fixator not only has the advantages of external fixation (fracture external fixation) but also has the advantages of a locking bone fracture plate (fracture internal fixation), and the tibia locking nail plate external fixator is used for treating tibia far-section fracture operation, closed reduction or minimally invasive incision reduction, embodies a minimally invasive concept and a rapid rehabilitation surgical concept, and has good biomechanical stability through biomechanical measurement.

The invention realizes the purpose through the following technical scheme:

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

Further setting: the fixing plate and the locking screw are made of titanium alloy materials, the screw hole at the connecting end of the fixing plate and the metaphysis end is provided with 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 locking screw can fix at the distal tibial segment, anatomically match 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 locking screw is connected with the fixing plate through threads.

So set up, be convenient for right locking screw installs and dismantles.

The invention also provides a using method of the external fixator of the tibia locking nail plate, the fixing plate is arranged on the inner front side of the tibia, so that the cambered surface of the inner bottom is matched with the surface of the calf, the distance between the inner bottom and the skin of the calf is about 2 cm, the cambered surface of the peripheral side is aligned with the radian of the tibia, the locking screws penetrate through the screw holes to connect and fix the tibia, all the locking screws are fixed on the far section of the tibia and are anatomically matched with the far section of the tibia, and meanwhile, the metaphysis end of the fixing plate is fixed in a multi-angle mode by adopting a plurality of.

Compared with the prior art, the invention has the following beneficial effects:

1. the fixing plate is firmly combined with the locking screw, and the multiple locking 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 joints are facilitated;

2. after operation, part of locking 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 used in the description of the embodiments or the prior art will be briefly described below, and 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 creative efforts.

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

FIG. 2 is a front view of the external fixator of the tibia locking nail plate according to the present invention;

fig. 3 is a schematic top structural view of the external fixator of the tibial locking nail plate of the invention.

The reference numerals are explained below:

1. a fixing plate; 2. screw holes; 3. a locking 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 those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to 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 should be noted that unless otherwise explicitly stated 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 invention will be further described with reference to the accompanying drawings in which:

as shown in fig. 1-3, an external fixator for a locking nail plate of a tibia comprises a fixing plate 1 and locking screws 3, wherein the fixing plate 1 is uniformly provided with screw holes 2, the locking screws 3 are installed and fixed, the locking screws 3 are installed in the screw holes 2, the tibia is fixed, the fixing plate 1 is just opposite to and parallel to the front inner side bone surface of the tibia and is an inner bottom cambered surface 4, the side surface of the fixing plate 1 is parallel to the front edge of the tibia and is a peripheral side cambered surface 5, and the side surface of the fixing plate is consistent with the radian of the tibia.

Preferably: the fixing plate 1 and the locking screw 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 located 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, stress shielding is reduced, the elastic fixing effect is achieved, the fixator can firmly fix the tibia, the stability is improved, and 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 locking 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 locking screw 3 is connected with the fixing plate 1 through threads, so that the locking screw 3 can be conveniently mounted and dismounted.

The invention also provides a using method of the external fixator of the tibia locking nail plate, the fixing plate 1 is arranged on the front inner side of the tibia, so that the inner bottom cambered surface 4 is inosculated with the surface of the calf, the distance between the inner bottom cambered surface and the skin of the calf is about 2 cm, the peripheral side cambered surface 5 is aligned with the radian of the tibia, the locking screws 3 penetrate through the screw holes 2 to connect and fix the tibia, all the locking screws 3 are fixed on the far section of the tibia and are matched with the far section of the tibia in an anatomical mode, and meanwhile, the metaphysis end of the fixing plate 1 is fixed in a multi-angle mode through the plurality of.

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 embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.

Claims

1. The utility model provides a shin bone locking nail board external fixation ware which characterized in that: including fixed plate (1) and locking screw (3), evenly be provided with screw hole (2) on fixed plate (1), install locking screw (3) in screw hole (2), fixed plate (1) just is just to and is on a parallel with preceding inboard bone surface of shin bone for inner bottom cambered surface (4), fixed plate (1) side is on a parallel with the shin bone leading edge for week side cambered surface (5), unanimous with shin bone axle radian.

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

6. The use method of the external fixator of the tibial locking nail plate is characterized in that: the fixing plate (1) is placed on the front inner side of the tibia, the inner bottom cambered surface (4) is matched with the shank surface, the distance between skin of the shank is about 2 cm, the peripheral side cambered surface (5) is aligned with the radian of the tibia, the locking screws (3) penetrate through the screw holes (2) to connect and fix the tibia, all the locking screws (3) are fixed on the far section of the tibia and are matched with the far section of the tibia in an anatomical mode, and meanwhile, the multiple locking 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.