CN108078621A - A kind of twin columns wing bone plate and twin columns wing bone-knitting device - Google Patents

Abstract

The invention provides a double-column wing-shaped osteosynthesis plate and a double-column wing-shaped osteosynthesis device, which relate to the field of medical instruments. Among them, the double-column wing-shaped bone plate is used to cooperate with lag screws to fix the acetabulum. The double-column wing-shaped bone plate includes a bone plate body and a connecting part. The connecting part is connected to one side of the bone plate body, and the connecting part forms a wing shape with the bone plate body. Both the bone plate body and the connecting part are provided with screw holes, and the screw holes cooperate with lag screws to fix the acetabulum. The double-column wing-shaped bone plate provided in this embodiment provides the fixation effect of the double-column wing-shaped bone plate through the acetabular fit of the bone plate body and the connecting part.

Description

A double-column wing-shaped osteosynthesis plate and a double-column wing-shaped osteosynthesis device

technical field

The invention relates to the field of medical devices, in particular to a double-column wing-shaped osteosynthesis plate and a double-column wing-shaped osteosynthesis device.

Background technique

Health is the relentless pursuit of human beings. Everyone hopes to live a healthy life, but in fact most of us will encounter various diseases in our lives. Health problems also put forward higher requirements, among which fractures are the most common and one of the main threats to our health. Especially this year, the cases of acetabular defects and fractures caused by factors such as traffic accidents are on the rise. The degree and difficulty are also increasing, and the risk of surgery is increasing.

The acetabulum is an important load-bearing joint that makes up the lower limbs of the human body. Acetabular fractures are intra-articular fractures, which are common in severe violent injuries, and are more common in young people. Among them, double-column fractures are a type with a relatively high incidence of acetabular fractures. Treatment should be based on clinical manifestations, imaging evaluation and other factors to choose a treatment plan. Requires anatomical reduction, firm fixation, and early initiation of active and passive functional exercises.

In clinical treatment, for comminuted double-column acetabular fractures, there is no good anatomical bone plate at present. The common bone plate needs to be pre-bent during operation, and poor matching with the shape of the pelvis may lead to the loss of primary reduction of the fracture, and Multiple bone plates are needed to fix the bone fragments, and it is difficult to effectively reduce and fix the fracture in the quadrangular area, resulting in unsatisfactory fixation effect of the bone plate.

Contents of the invention

The purpose of the present invention is to provide a double-column wing-shaped bone plate, which aims to improve the problem of poor fixation effect of the existing bone plate.

The purpose of the present invention is to provide a double-column wing-shaped osteosynthesis device, which aims to improve the problem of poor fixation effect of the existing bone plate.

The invention provides a technical solution:

A double-column wing-shaped bone plate is used to cooperate with lag screws to fix the acetabulum. The double-column wing-shaped bone plate includes a bone plate body and a connecting part, and the connecting part is connected to one side of the bone plate body. The connecting part and the bone plate body form a wing shape, and the bone plate body and the connecting part are both provided with screw holes, and the screw holes cooperate with the lag screws to fix the acetabulum.

Further, in a preferred embodiment of the present invention, the connecting part includes a first connecting plate and a second connecting plate, one end of the first connecting plate is connected to the bone plate body, and one end of the second connecting plate It is connected with the bone plate body, the end of the first connecting plate away from the bone plate body is connected with the end of the second connecting plate away from the bone plate body, and the screw hole is set on the first connection board.

Further, in a preferred embodiment of the present invention, the first connecting plate is in the shape of a cuboid, and the second connecting plate is in the shape of a cuboid.

Further, in a preferred embodiment of the present invention, the double-column wing bone plate further includes a first fixing part, a second fixing part and a third fixing part, one end of the first fixing part is connected to the bone plate One end of the main body is connected, and the second fixing part and the third fixing part are respectively connected with the bone plate main body to fix the anterior and posterior columns of the acetabulum and fractures of the quadrilateral through three-point fixation.

Further, in a preferred embodiment of the present invention, the first fixing part, the second fixing part and the third fixing part are all provided with the nail insertion holes.

Further, in a preferred embodiment of the present invention, the first fixing part, the second fixing part and the third fixing part are connected to a side of the bone plate away from the connecting part.

Further, in a preferred embodiment of the present invention, the bone plate body includes a first fixing plate, a second fixing plate and a third fixing plate, one end of the first fixing plate is connected to the first fixing plate , the other end is connected to the third fixed plate, one end of the connecting part is connected to the first fixed plate, the other end is connected to the second fixed plate, the first fixed plate is connected to the third fixed plate All are provided with the described nail setting holes.

Further, in a preferred embodiment of the present invention, the fitting surface of the double-column wing-shaped bone plate is anatomically designed, and the fitting surface fits with the acetabulum.

Further, in a preferred embodiment of the present invention, the nail setting hole includes a first section and a second section, the first section is opened on the fitting surface, and communicates with the second section to form a step hole.

A double-column pterygium osteosynthesis device, comprising a lag screw and a double-column pterygium bone plate, the double-column pterygium bone plate includes a bone plate body and a connecting portion, the connecting portion is connected to one side of the bone plate body, the The connecting part and the bone plate body form a wing shape, and the bone plate body and the connecting part are provided with screw holes, and the screw holes cooperate with the lag screws to fix the front and back of the acetabulum Column and quadrilateral fractures. The lag screw cooperates with the screw hole to fix the acetabulum.

The beneficial effects of the double-column wing-shaped bone plate and the double-column wing-shaped osteosynthesis device provided by the present invention are: in the present invention, the double-column wing-shaped bone plate includes a bone plate body and a connecting part, and both the bone plate body and the connecting part are connected to each other through the nail hole. Lag screws cooperate to fix the acetabulum, thereby improving the fixation effect of the double-column wing plate.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and thus It should be regarded as a limitation on the scope, and those skilled in the art can also obtain other related drawings based on these drawings without creative work.

FIG. 1 is a structural schematic diagram of a first viewing angle of a double-column wing-shaped bone plate provided by Embodiment 1 of the present invention.

FIG. 2 is a schematic structural view of a double-column wing-shaped bone plate provided by Embodiment 1 of the present invention at a second viewing angle.

FIG. 3 is a structural schematic diagram of a third viewing angle of the double-column wing-shaped bone plate provided by Embodiment 1 of the present invention.

FIG. 4 is a schematic structural view of the double-column wing-shaped osteosynthesis device provided by Embodiment 2 of the present invention.

Icons: 10-double-column wing-shaped osteosynthesis device; 100-double-column wing-shaped bone set plate; 110-bone plate body; 112-first fixation plate; 114-second fixation plate; 116-third fixation plate; 118-first paste 120-joint part; 122-first connecting plate; 124-second connecting plate; 126-second bonding surface; 130-nail hole; 132-first section; 134-second section; 140- Fitting surface; 150-the first fixing part; 152-the third fitting surface; 160-the second fixing part; 162-the fourth fitting surface; 170-the third fixing part; 172-the fifth fitting surface; 200 - Lag screws.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In describing the present invention, it is to be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that is usually placed when the product of the invention is used, or the orientation or positional relationship that is commonly understood by those skilled in the art. In order to facilitate the description of the present invention and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions, and should not be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "setting" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, or Integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

Embodiment one

Please refer to Fig. 1 and Fig. 2, this embodiment provides a double-column pterygoid bone plate 100, which is mainly used in acetabular repair surgery. The bone plate 100 can fit completely with the acetabulum, improving the fixation effect of the double-column wing bone plate 100 . The double-column wing-shaped bone plate 100 provided in this embodiment can not only fix the anterior acetabular column but also the posterior acetabular column, and can effectively fix and support fractures in the quadrangular area, improving the performance of the double-column wing-shaped bone plate 100. fixed effect.

The double-column wing-shaped bone plate 100 provided in this embodiment is made by three-dimensional printing technology. First, a CT scan is performed on the patient's pelvis, and the acetabular model is reconstructed using medical software to clarify the fracture location. The double-column wing-shaped bone plate 100 is individually designed so that the double-column wing-shaped bone plate 100 can fit the acetabulum completely, and the double-column wing-shaped bone plate 100 is printed by using three-dimensional printing technology.

The double-column wing plate 100 is designed according to the anatomical shape of the medial surface of the acetabulum, combined with the biomechanical properties of the surrounding structures of the acetabulum. The point is fixed above the greater sciatic notch of the ilium, and the lower point is fixed on the ischial spine. The acetabular structure, the pubic bone, ilium, and ischium, are connected by three points to achieve integrated fixation of the acetabulum and achieve stability. The bone plate is placed on the inner side of the pelvic rim, its body can fix the anterior column of the acetabulum, the upper short arm of the body can fix the fracture of the anterior wall of the acetabulum, and the wing can fix the posterior column of the acetabulum and comminuted fractures in the quadrilateral area, and The quadrilateral acts as a support and a barrier.

The double-column wing-shaped osteotomy plate provided in this embodiment includes a bone plate body 110, a connecting portion 120, a first fixing portion 150, a second fixing portion 160, and a third fixing portion 170, and the connecting portion 120 is connected to one side of the bone plate body 110. connect. The connecting portion 120 forms a wing shape with the bone plate body 110 . It can effectively play a supporting role and improve the fixation effect of the double-column wing-shaped bone plate 100 . The first fixing part 150 , the second fixing part 160 and the third fixing part 170 are respectively connected to the bone plate body 110 .

In this embodiment, both the bone plate body 110 and the connecting portion 120 are provided with screw holes 130 , and the screw holes 130 cooperate with lag screws 200 to fix the anterior column and the posterior column of the acetabulum.

In this embodiment, the connecting part 120 includes a first connecting plate 122 and a second connecting plate 124, one end of the first connecting plate 122 is connected to the bone plate body 110, and one end of the second connecting plate 124 is connected to the bone plate body 110, The end of the first connecting plate 122 away from the plate body 110 is connected with the end of the second connecting plate 124 away from the plate body 110 to form a wing shape, which can effectively fix and support the acetabular quadrilateral region.

The nail setting holes 130 are disposed on the first connecting plate 122 and the second connecting plate 124 . The screw hole 130 cooperates with the lag screw 200 to fix the anterior column and the posterior column of the acetabulum.

In this embodiment, the first connecting plate 122 is in the shape of a cuboid.

It should be noted that, in this embodiment, the first connecting plate 122 is in the shape of a cuboid, but it is not limited thereto. In other embodiments of the present invention, the first connecting plate 122 may be in the shape of a cube or other shapes. The solutions equivalent to the examples, which can achieve the effect of this embodiment, are all within the protection scope of the present invention.

In this embodiment, the second connecting plate 124 is in the shape of a cuboid.

It should be noted that, in this embodiment, the second connecting plate 124 is in the shape of a cuboid, but it is not limited thereto. In other embodiments of the present invention, the second connecting plate 124 may be in the shape of a cube or other shapes, which is different from that of the present invention. The solutions equivalent to the embodiment, which can achieve the effect of the embodiment, are within the protection scope of the present invention.

In this embodiment, the bone plate body 110 includes a first fixing plate 112, a second fixing plate 114 and a third fixing plate 116, one end of the second fixing plate 114 is connected to the first fixing plate 112, and the other end is connected to the third fixing plate 116. Board 116 is connected.

One end of the connecting portion 120 is connected to the first fixing plate 112 , and the other end is connected to the second fixing plate 114 .

In this embodiment, one end of the first connecting plate 122 is connected to the first fixing plate 112, one end of the second connecting plate 124 is connected to the second fixing plate 114, the first connecting plate 122, the second connecting plate 124, the first The fixing plate 112 and the second fixing plate 114 form a wing shape, which improves the fixing effect of the double-column wing-shaped bone plate 100 .

In this embodiment, the first fixing plate 112 and the third fixing plate 116 are provided with screw holes 130, and the screw holes 130 cooperate with lag screws 200 to fix the anterior column and the posterior column of the acetabulum.

In this embodiment, the first fixing plate 112 , the second fixing plate 114 and the third fixing plate 116 are all in the shape of a cuboid.

It should be noted that, in this embodiment, the first fixing plate 112, the second fixing plate 114 and the third fixing plate 116 are all in the shape of a cuboid, but it is not limited thereto. In other embodiments of the present invention, the first fixing plate The plate 112 , the second fixing plate 114 and the third fixing plate 116 can all be in other shapes, and solutions equivalent to this embodiment, which can achieve the effect of this embodiment, are within the protection scope of the present invention.

In this embodiment, the nail setting hole 130 includes a first section 132 and a second section 134 , the first end is opened to the fitting surface 140 , and communicates with the second section 134 to form a stepped hole.

In this embodiment, the diameter of the second segment 134 is larger than the diameter of the first segment 132 .

It should be noted that, in this embodiment, the diameter of the second section 134 is larger than that of the first end, but it is not limited thereto. In other embodiments of the present invention, the diameter of the first section 132 may be larger than that of the second section 134 Diameters, solutions equivalent to this embodiment, and those that can achieve the effects of this embodiment are all within the protection scope of the present invention.

The first fixing part 150 , the second fixing part 160 and the third fixing part 170 are respectively connected to the bone plate body 110 .

In this embodiment, the first fixing portion 150 is connected to the first fixing plate 112 , and the second fixing portion 160 and the third fixing portion 170 are respectively connected to the second fixing plate 114 .

It should be noted that, in this embodiment, the double-column wing bone plate 100 includes a first fixing part 150, a second fixing part 160 and a third fixing part 170, but it is not limited thereto. In other embodiments of the present invention, The double-column wing-shaped bone plate 100 may include any one of the three, or any two of them, and solutions equivalent to the present embodiment, which can achieve the effect of the present embodiment, are within the protection scope of the present invention.

In this embodiment, the first fixing part 150 , the second fixing part 160 and the third fixing part 170 are all provided with screw holes 130 , and the screw holes 130 cooperate with lag screws 200 to fix the acetabulum.

Please refer to FIG. 3 , in this embodiment, the double-column wing bone plate 100 also has a fitting surface 140 , and the fitting surface 140 is fitted to the acetabulum. The fit surface 140 fits completely with the acetabulum, which can improve the reduction quality of the double-column wing-shaped bone plate 100 and improve the fixation effect of the double-column wing-shaped bone plate 100 .

In this embodiment, the bone plate body 110 has a first fitting surface 118, the connecting part 120 has a second fitting surface 126, the first fixing part 150 has a third fitting surface 152, and the second fixing part 160 has a fourth fitting surface. The fitting surface 162, the third fixing part 170 has a fifth fitting surface 172, the first fitting surface 118, the second fitting surface 126, the third fitting surface 152, the fourth fitting surface 162 and the fifth fitting surface Surface 172 forms mating surface 140 .

The working principle of the double-column wing-shaped bone plate 100 provided in this embodiment: in this embodiment, the acetabulum is first fitted with the fitting surface 140, and when the fitting surface 140 can be completely fitted with the acetabulum, the In the repair position, the bone plate body 110 and the connecting portion 120 are completely fitted to the acetabulum. The screw hole 130 determines the direction in which the lag screw 200 enters the acetabulum, and the lag screw 200 enters the acetabulum through the screw hole 130, thereby fixing the acetabulum. By aligning the screw holes 130 provided at the anterior, posterior, and inferior positions of the bone plate, fractures in the anterior and posterior columns of the acetabulum and quadrilateral regions can be effectively fixed.

To sum up, the double-column wing-shaped bone plate 100 provided in this embodiment, in this embodiment, first uses the fitting surface 140 to fit the acetabulum, and when the fitting surface 140 can completely fit the acetabulum, that is, The repair position can be determined so that the bone plate body 110 and the connecting part 120 can fit the acetabulum completely. The screw hole 130 determines the direction in which the lag screw 200 enters the acetabulum, and the lag screw 200 enters the acetabulum through the screw hole 130, thereby fixing the acetabulum. By aligning the screw holes 130 provided at the anterior, posterior, and inferior positions of the bone plate, fractures in the anterior and posterior columns of the acetabulum and quadrilateral regions can be effectively fixed. The double-column wing-shaped bone plate 100 provided in this embodiment completely fits the bone plate body 110 and the connecting part 120 to the acetabulum through the fitting surface 140. The fixation effect of the winged bone plate 100.

Embodiment two

Referring to Fig. 4, this embodiment provides a double-column pterygium bone setter 10, the double-column pterygium bone setter 10 provided by this embodiment is mainly used in acetabular repair surgery, for comminuted acetabular double-column fractures, it can The acetabular fixation steps are simplified, and the fixation effect of the double-column wing-shaped osteosynthesis device 10 is improved.

For brief description, the parts not described in this embodiment can be referred to the first embodiment.

The double-column pterygium osteosynthesis device 10 provided in this embodiment includes the double-column pterygium bone plate 100 provided in Embodiment 1 and lag screws 200 , and the lag screws 200 respectively fit into the screw holes 130 to fix the acetabulum.

The working principle of the double-column wing-shaped osteosynthesis device 10 provided in this embodiment: in this embodiment, firstly, the fitting surface 140 is used to fit the acetabulum, and when the fitting surface 140 can completely fit the acetabulum, the In the repair position, the bone plate body 110 and the connecting portion 120 are completely fitted to the acetabulum. The screw hole 130 determines the direction in which the lag screw 200 enters the posterior column of the acetabulum, and the lag screw 200 passes through the screw hole 130 and enters the posterior column of the acetabulum, thereby fixing the acetabulum.

To sum up, the double-column wing-shaped osteosynthesis device 10 provided in this embodiment, in this embodiment, first uses the fitting surface 140 to fit the acetabulum, and when the fitting surface 140 can completely fit the acetabulum, that is, The repair position can be determined so that the bone plate body 110 and the connecting part 120 can fit the acetabulum completely. The screw hole 130 determines the direction in which the lag screw 200 enters the acetabulum, and the lag screw 200 enters the acetabulum through the screw hole 130, thereby fixing the acetabulum. The nail hole 130 on the first connecting plate 122 fixes the rear column, the nail hole 130 on the second fixing part 160 fixes the front column, and the nail hole 130 on the second fixing plate 114 fixes the front wall. The double-column wing-shaped osteosynthesis device 10 provided in this embodiment completely fits the bone plate body 110 and the connecting part 120 to the acetabulum through the fitting surface 140. The fixation effect of the pterygoid osteosynthesis device 10.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. A double-column wing-shaped bone plate, which is used to cooperate with lag screws to fix the acetabulum, is characterized in that, the double-column wing-shaped bone plate includes a bone plate body and a connecting portion, and the connecting portion is connected to the bone plate body The connecting part and the bone plate body form a wing shape, and the bone plate body and the connecting part are both provided with nail holes, and the nail holes cooperate with the lag screws to fix the acetabulum. 2. The double-column wing-shaped bone plate according to claim 1, wherein the connecting part comprises a first connecting plate and a second connecting plate, one end of the first connecting plate is connected to the bone plate body, One end of the second connecting plate is connected to the bone plate body, one end of the first connecting plate away from the bone plate body is connected to an end of the second connecting plate far away from the bone plate body, and the screw hole set on the first connecting board. 3. The double-column wing-shaped bone plate according to claim 2, wherein the first connecting plate is in the shape of a cuboid, and the second connecting plate is in the shape of a cuboid. 4. The double-column wing-shaped bone plate according to claim 1, characterized in that, the double-column wing-shaped bone plate further comprises a first fixing part, a second fixing part and a third fixing part, and the first fixing part One end is connected to one end of the bone plate body, and the second fixing part and the third fixing part are respectively connected to the bone plate body. 5 . The double-column wing-shaped bone plate according to claim 4 , wherein the nail insertion holes are all provided on the first fixing part, the second fixing part and the third fixing part. 6. The double-column wing-shaped bone plate according to claim 4, characterized in that, the first fixing part, the second fixing part and the third fixing part are far away from the connecting part of the bone plate. Connect on one side. 7. The double-column wing-shaped bone plate according to claim 1, wherein the bone plate body further comprises a first fixing plate, a second fixing plate and a third fixing plate, one end of the second fixing plate is connected to The first fixed plate is connected, and the other end is connected with the third fixed plate, one end of the connecting part is connected with the first fixed plate, and the other end is connected with the second fixed plate, and the first fixed plate is connected with the second fixed plate. The nail setting holes are all provided on the third fixing plate. 8. The double-column wing-shaped bone plate according to claim 1, characterized in that, the double-column wing-shaped bone plate has a fitting surface, and the fitting surface is fitted to the acetabulum. 9. The double-column wing-shaped bone plate according to claim 8, wherein the screw hole includes a first section and a second section, the first section is opened on the fitting surface, and is connected to the The second section is connected to form a stepped hole. 10. A double-column wing-shaped osteosynthesis device, characterized in that it comprises a lag screw and a double-column wing-shaped bone bone plate according to any one of claims 1-9, the lag screw cooperates with the screw hole to fix the acetabulum.