CN106691560B - Fracture fixing structure and fracture fixing assembly with same - Google Patents
Fracture fixing structure and fracture fixing assembly with same Download PDFInfo
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- CN106691560B CN106691560B CN201611265013.7A CN201611265013A CN106691560B CN 106691560 B CN106691560 B CN 106691560B CN 201611265013 A CN201611265013 A CN 201611265013A CN 106691560 B CN106691560 B CN 106691560B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B2017/564—Methods for bone or joint treatment
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Abstract
The invention provides a fracture fixing structure and a fracture fixing assembly with the same, wherein the fracture fixing structure comprises: a porous metal band (10), the porous metal band (10) being for covering a fracture line; a fastener disposed on the porous metal band (10), the fastener being for securing the porous metal band (10) to a bone mass. The technical scheme of the invention can effectively solve the problems that the internal fracture fixation device in the prior art is inconvenient to place and needs to be taken out after fracture healing.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a fracture fixing structure and a fracture fixing assembly with the same.
Background
With the pace of modern human life increasing, traumatic fractures caused by accidents such as production, transportation, movement and the like are increased rapidly. Currently, the medical community has three major principles for fracture treatment: resetting, fixing and functional rehabilitation exercise. Among them, reduction and fixation are the key to the initial treatment of fracture. When complicated fracture types such as oblique fracture, spiral fracture, comminuted fracture, and impacted fracture are encountered, ideal anatomical reduction and stable fixation are difficult to achieve by means of manual reduction and external fixation. Therefore, for closed complex fractures, it is necessary to perform open surgical reduction and to place internal fixation devices (e.g., steel plates, intramedullary nails, screws, and metal cables for binding); but the open fracture is naturally treated by adopting a method of surgical reduction and internal fixing devices.
However, in practice, due to various factors, particularly the complicated walking of the fracture line and the influence of more broken fragments of the fracture, the internal fixation device is inconvenient to place after the operation reduction, and theoretically, in order to avoid the osteoporosis and the degradation of the bone in the affected area caused by the stress shielding formed by the internal fixation device in the future and finally the fatigue damage of the metal implant, the implanted devices such as the steel plate, the intramedullary nail and the like should be taken out of the body after the fracture healing, so that the secondary operation is required, and the body of the patient is greatly damaged.
Disclosure of Invention
The invention mainly aims to provide a fracture fixing structure and a fracture fixing assembly with the same, and aims to solve the problems that a fracture internal fixing device in the prior art is inconvenient to place and needs to be taken out after fracture healing.
In order to achieve the above object, according to one aspect of the present invention, there is provided a fracture fixation structure including: a porous metal band for covering the fracture line; and the fixing piece is arranged on the porous metal belt and is used for fixing the porous metal belt on the bone block.
Further, the fracture fixation structure further comprises a reinforcing structure disposed on the porous metal band.
Further, the reinforcing structure is a reinforcing rib extending in the longitudinal direction of the porous metal strip.
Further, the reinforcing ribs are located on the side edges of the porous metal strip.
Furthermore, the number of the reinforcing ribs is two, and the two reinforcing ribs are oppositely arranged along the width direction of the porous metal strip.
Further, the fixing member includes an edge fixing plate protruding from the porous metal strip in a width direction of the porous metal strip.
Further, the porous metal strip includes a first porous metal strip and a second porous metal strip connected to the first porous metal strip, the first porous metal strip and the second porous metal strip being angularly disposed.
Further, the fixture includes an intermediate retaining plate coupled between the first porous metal strip and the second porous metal strip.
Further, the porous metal strip is in a closed loop shape.
Further, the porous metal strip includes two or more third porous metal strips, and the two or more third porous metal strips are connected to each other.
Further, a bone fusion layer is arranged on the fixing piece.
According to another aspect of the present invention there is provided a fracture fixation assembly comprising first and second fracture fixation structures interconnected together, both of which are as described above.
Further, the fracture fixation assembly also includes a connection structure connecting the first and second fracture fixation structures.
Furthermore, the connecting structure comprises a first connecting plate and a second connecting plate, the first connecting plate is arranged on the first fracture fixing structure, the second connecting plate is arranged on the second fracture fixing structure, and the first connecting plate and the second connecting plate are matched with each other to connect the first fracture fixing structure and the second fracture fixing structure.
Furthermore, the porous metal strip of the first fracture fixing structure comprises a first porous metal strip and a second porous metal strip connected with the first porous metal strip, the first porous metal strip and the second porous metal strip are arranged at an angle, the porous metal strip of the second fracture fixing structure is in a closed ring shape, and the first porous metal strip, the second porous metal strip and the porous metal strip of the second fracture fixing structure are in an integrally formed structure.
By applying the technical scheme of the invention, the porous metal belt and the fixing piece for fixing the porous metal belt on the bone block are arranged. The porous metal band covers the surface of the fracture line and is fixed on the bone blocks through fixing pieces so as to realize the initial fixation of the broken bone blocks. Meanwhile, in the future fracture healing process, bone cells grow into the pores of the porous metal band. Because the elastic modulus of the porous metal belt is very low and is very close to that of human cortical bone, stress shielding can not be formed on the new bone structure at the fracture healing end in a long term. Thus, the fracture fixation structure described above does not require a secondary operation to remove it, and eventually the porous metal band will remain permanently on the bone surface, partially or completely forming part of the newly formed bone structure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a partial schematic structural view of a first embodiment of a fracture fixation structure according to the present invention;
FIG. 2 shows a schematic structural view of the fracture fixation structure of FIG. 1;
FIG. 3 is a schematic structural view showing a second embodiment of a fracture fixation structure according to the present invention;
FIG. 4 shows a schematic structural diagram of a first embodiment of a fracture fixation assembly according to the present invention;
FIG. 5 is a schematic view of the initial state of fixation of the fracture fixation assembly of FIG. 4;
FIG. 6 is a schematic view of an intermediate state of fixation of the fracture fixation assembly of FIG. 4;
FIG. 7 is a schematic view of the final state of fixation of the fracture fixation assembly of FIG. 4;
FIG. 8 shows a schematic structural view of a second embodiment of a fracture fixation assembly according to the present invention;
FIG. 9 is a schematic view of the fracture fixation assembly of FIG. 8 in a fixed state;
FIG. 10 shows a schematic of a first type of comminuted fracture;
FIG. 11 is a schematic view showing the distribution of bone pieces in the fabrication of a porous metal band of a fracture fixation assembly for a first type of comminuted fracture;
FIG. 12 shows a schematic representation of a porous metal band of a fracture fixation assembly after splicing of bone pieces for a first type of comminuted fracture;
FIG. 13 shows a schematic view of a fracture line model of a porous metal band of a fracture fixation assembly as made for a first type of comminuted fracture;
FIG. 14 shows a schematic view of another fracture line model of the porous metal band of the fracture fixation assembly when made for a first type of comminuted fracture;
FIG. 15 shows a schematic structural view of a first type of porous metal band made for comminuted fractures of a fracture fixation assembly;
FIG. 16 shows a schematic structural view of a second type of comminuted fracture;
FIG. 17 is a schematic illustration of the comminuted fracture of FIG. 16 after splicing of bone pieces of a second type;
FIG. 18 is a schematic structural view of a third embodiment of a fracture fixation assembly according to the present invention; and
fig. 19 shows an enlarged schematic view at a of the fracture fixation structure of fig. 2.
Wherein the figures include the following reference numerals:
1. a first bone piece; 2. a second bone piece; 3. a third bone piece; 4. a first fracture line; 5. a second fracture line; 10. a porous metal band; 11. a first porous metal strip; 12. a second porous metal strip; 20. reinforcing ribs; 31. an edge fixing plate; 311. a bone fusion layer; 32. a middle fixing plate; 40. a first fracture fixation structure; 50. a second fracture fixation structure; 61. a first connecting plate; 62. a second connecting plate.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
As shown in fig. 1 and 2, the fracture fixation structure of the first embodiment includes a porous metal band 10 and a fixing member. Wherein a porous metal strip 10 is used to cover the fracture line. The fixing member is disposed on the porous metal strip 10. The fastener is used to secure the porous metal band 10 to the bone pieces.
With the fracture fixation structure of the present embodiment, the porous metal band 10 and the fixing member for fixing the porous metal band 10 to the bone mass are provided. The porous metal band 10 is covered on the surface of the fracture line and fixed on the bone fragments by fixing members to realize the initial fixation of the broken bone fragments. Meanwhile, in the future fracture healing process, bone cells grow into the pores of the porous metal band 10. As the elastic modulus of the porous metal belt 10 is very low and is very close to that of human cortical bone (the elastic modulus of the human cortical bone is about 10-20 GPa, and the elastic modulus of human cancellous bone is about 0.5-3 GPa), experiments prove that the elastic modulus of the porous metal belt 10 can be selectively designed and manufactured between 0.5-100 GPa, and stress shielding can not be formed on a new bone structure at a fracture healing end in a long term. Thus, the fracture fixation structure described above does not require a secondary operation to remove it, and eventually the porous metal band 10 will be partially or completely formed as part of the newly formed bone structure and permanently remain on the bone surface.
As shown in fig. 1 and 2, in the fracture fixation structure of the first embodiment, the fracture fixation structure further includes a reinforcing structure provided on the porous metal band 10. In the present embodiment, the reinforcing structure is a reinforcing rib 20 extending in the longitudinal direction of the porous metal strip 10. The number of the reinforcing ribs 20 is two, and the two reinforcing ribs 20 are respectively located on both side edges of the porous metal strip 10. The two reinforcing beads 20 are oppositely disposed in the width direction of the porous metal strip 10. The reinforcement structure described above can ensure that the porous metal strip 10 has sufficient strength when it is fixed at an early stage of implantation. Of course, the specific form of the reinforcing structure is not limited thereto, and in other embodiments not shown in the drawings, the reinforcing structure may be a reinforcing plate, and the reinforcing structure may be provided within the porous metal band.
As shown in fig. 2 and 19, in the fracture fixation structure of the first embodiment, the fixing member includes an edge fixing plate 31. The edge fixing plate 31 protrudes from the porous metal strip 10 in the width direction of the porous metal strip 10. The above structure can fix the porous metal band 10 on the bone block, and the edge fixing plate 31 can be attached to the bone surface of the bone block, thereby facilitating the fixation. The edge fixing plate 31 is provided with a screw hole, and in the operation, a fixing screw firstly passes through the screw hole of the edge fixing plate 31, then is screwed into each bone block and is screwed tightly, so that an ideal fixing effect can be obtained. In order to improve the long-term stability of the edge fixing plate 31, in the present embodiment, the side of the edge fixing plate 31 facing the bone is provided with a bone fusion layer 311, the bone fusion layer 311 is a porous layer, and the surface of the porous layer forms a good fit with the surface of the bone so that the long-term bone creeps into the porous layer of the edge fixing plate 31, thereby forming a bone fusion type fixation. Of course, the bone fusion layer 311 is not limited to a porous layer, and in other embodiments, the bone fusion layer may be a bio-coating.
As shown in fig. 2, in the fracture fixation structure according to the first embodiment, the porous metal strip 10 includes a first porous metal strip 11 and a second porous metal strip 12 connected to the first porous metal strip 11, and the first porous metal strip 11 and the second porous metal strip 12 are disposed at an angle. In this embodiment, the fixing member further includes an intermediate fixing plate (not shown) connected between the first porous metal strip 11 and the second porous metal strip 12. The side of the middle fixing plate facing the sclerotin is also provided with a bone fusion layer. It should be noted that the specific structure of the porous metal strip 10 is not limited to this, and in other embodiments not shown in the drawings, the porous metal strip may include two or more third porous metal strips connected to each other, and the arrangement direction and connection position of the third porous metal strips need to be designed according to the shape of a specific fracture line so as to completely cover the fracture line.
As shown in FIG. 3, the fracture fixation structure of the second embodiment is different from that of the first embodiment in that the porous metal band 10 has a closed loop shape. Other structures and principles of this embodiment are the same as those of the first embodiment, and are not described herein again.
The shape of the porous metal strip 10 is not limited to the shape of the porous metal strip 10 in the first and second examples, and in other embodiments, the specific shape of the porous metal strip may be designed and manufactured according to the anatomical morphology of the fracture site of the patient.
As shown in FIG. 4, the present application also provides a fracture fixation assembly, an embodiment of which according to the present application includes first and second fracture fixation structures 40 and 50 interconnected. The first fracture fixation structure 40 is the fracture fixation structure of the first embodiment, and the second fracture fixation structure 50 is the fracture fixation structure of the second embodiment, that is, the porous metal band 10 of the first fracture fixation structure 40 includes a first porous metal band 11 and a second porous metal band 12 connected to the first porous metal band 11, the first porous metal band 11 and the second porous metal band 12 are disposed at an angle, and the porous metal band 10 of the second fracture fixation structure 50 is in a closed ring shape.
As shown in FIG. 4, in the first embodiment of the fracture fixation assembly, the first fracture fixation structure 40 and the second fracture fixation structure 50 are split, which is more convenient for the operation and fixation of the operation. The fracture fixation assembly further includes a connection structure connecting the first and second fracture fixation structures 40 and 50. The connecting structure includes a first connecting plate 61 and a second connecting plate 62. A first connecting plate 61 is provided on the first fracture fixation structure 40. A second connecting plate 62 is provided on the second fracture fixation structure 50. The first and second connecting plates 61, 62 cooperate to connect the first and second fracture fixation structures 40, 50.
As shown in fig. 5-7, for the first type of comminuted fracture, it is fixed using the fracture fixation assembly of example one. Specifically, a first bone block 1, a second bone block 2 and a third bone block 3 are spliced and reset to restore to a normal and complete bone shape, wherein a first bone folding line 4 is formed between the first bone block 1 and the third bone block 3, the first bone folding line 4 is two bent sections, a second bone folding line 5 is formed between the second bone block 2 and the first bone block 1 as well as the third bone block 3, and the second bone folding line 5 is in a closed ring shape; the first and second fracture fixation structures 40 and 50 are then placed in alignment with the first and second fracture lines 4 and 5; finally, the edge fixing plate 31 is fixed to the bone block by fixing screws and tightened, and the first connecting plate 61 and the second connecting plate 62 are fixed by bolting.
As shown in FIG. 8, the present application also provides a fracture fixation assembly, an embodiment of which according to the present application includes a first fracture fixation structure 40 and a second fracture fixation structure 50 interconnected. The first fracture fixation structure 40 is the fracture fixation structure of the first embodiment, and the second fracture fixation structure 50 is the fracture fixation structure of the second embodiment, that is, the porous metal band 10 of the first fracture fixation structure 40 includes a first porous metal band 11 and a second porous metal band 12 connected to the first porous metal band 11, the first porous metal band 11 and the second porous metal band 12 are disposed at an angle, and the porous metal band 10 of the second fracture fixation structure 50 is in a closed ring shape. The first porous metal strip 11, the second porous metal strip 12, and the porous metal strip 10 of the second fracture fixation structure 50 are integrally formed.
As shown in FIG. 9, in the fracture fixation assembly of the second embodiment, the first porous metal band 11, the second porous metal band 12 of the first fracture fixation structure 40 and the porous metal band 10 of the second fracture fixation structure 50 are integrally formed, that is, the first fracture fixation structure 40 and the second fracture fixation structure 50 are formed in a cylindrical shape. For the first type of comminuted fracture, it is fixed using the fracture fixation assembly of example two. Specifically, the first bone block 1, the second bone block 2 and the third bone block 3 are sequentially arranged in the fracture fixation assembly for fixation, and the structure design and the manufacture are simple, and the fixation is reliable.
Fig. 10 shows a first type of comminuted fracture, the porous metal band 10 of the fracture fixation assembly of the present embodiment being fabricated in accordance with the anatomical morphology of the fracture site of the patient by the following steps:
firstly, an interactive medical image control system is used for establishing a three-dimensional model of a fracture part of a patient according to medical three-dimensional tomography data of CT or MRI and the like of the patient, as shown in fig. 11, the fracture part of the patient comprises a first bone block 1, a second bone block 2 and a third bone block 3 which have different shapes;
secondly, splicing and restoring each broken bone block into a normal and complete anatomical bone shape, as shown in fig. 12, splicing and restoring a first bone block 1, a second bone block 2 and a third bone block 3 into a normal and complete anatomical bone shape model, wherein a first fracture line 4 is formed between the first bone block 1 and the third bone block 3, the first fracture line 4 is two bent sections, a second fracture line 5 is formed between the second bone block 2 and the first bone block 1, the third bone block 3, and the second fracture line 5 is a closed ring;
then, as shown in fig. 13 and 14, extracting three-dimensional models of a first fracture line 4 and a second fracture line 5 from the surface of the restored fracture-form model, wherein the three-dimensional model shown in fig. 13 is a split type of the first fracture line 4 and the second fracture line 5, and the three-dimensional model shown in fig. 14 is an integrated type of the first fracture line 4 and the second fracture line 5;
finally, a porous metal strip 10 having a certain width and thickness is designed along the three-dimensional models of the first fracture line 4 and the second fracture line 5 to cover the first fracture line 4 and the second fracture line 5, wherein the porous metal strip 10 designed according to the three-dimensional model shown in fig. 13 is the porous metal strip 10 (not shown) of the fracture fixation assembly of the first embodiment, and the porous metal strip 10 designed according to the three-dimensional model shown in fig. 14 is the porous metal strip 10 (shown in fig. 15) of the fracture fixation assembly of the second embodiment.
The width of the porous metal band 10 can be set to be 2-20 mm according to the requirement, and the selection of the width is based on the fact that bone blocks on two sides of a fracture line can be effectively held and stably fixed; the thickness of the porous metal band 10 can be set to 0.1-10 mm as required, and the thickness is selected to provide enough mechanical strength to ensure that the fracture fixation component is not damaged before the fracture is completely healed (the mechanical strength is different due to different fracture parts, and specific data needs to be obtained through a series of tests and calculations); the pores of the porous metal band 10 are communicated with each other, and the pore diameter of the pores of the porous metal band 10 is set to be 0.2-5 mm.
The interconnected pores of the porous metal band 10 can ensure that hematoma formed along the fracture end in the early stage of fracture can fully infiltrate into and submerge and embed the porous metal band 10, and gradually transits to the original callus formation along with the organization and the development of hematoma, and finally the bone plate is shaped and shaped to complete healing. Throughout the process, the porous metal band 10 will remain submerged embedded in the hematoma-external callus-lamellar bone, and eventually the porous metal band 10 will become partially or fully part of the newly formed lamellar bone structure and remain permanently on the bone surface.
In addition, the porous metal band 10 can be manufactured by a metal 3D printing technology, the manufacturing process is simple and fast, the design and manufacturing can be completed within 24 hours generally, and early restoration and fixation of a fracture patient are facilitated. After printing, appropriate subsequent finishing processing is carried out, and the ink can be used for operation.
As shown in fig. 18, the present application further provides a fracture fixation assembly, in accordance with a third embodiment of the fracture fixation assembly of the present application, comprising first and second fracture fixation structures interconnected. The first fracture fixation structure is the first fracture fixation structure of the above embodiment, and the porous metal strip 10 of the second fracture fixation structure is strip-shaped, that is, the porous metal strip of the first fracture fixation structure includes a first porous metal strip 11 and a second porous metal strip 12 connected to the first porous metal strip 11, the first porous metal strip 11 and the second porous metal strip 12 are disposed at an angle, and the porous metal strip 10 of the second fracture fixation structure is strip-shaped. The first porous metal band 11, the second porous metal band 12, and the porous metal band 10 of the second fracture fixation structure are integrally formed. In this embodiment, the fixture further comprises an intermediate fixing plate 32. The intermediate fixing plate 32 is connected between the first porous metal strip 11 and the second porous metal strip 12.
As shown in fig. 16-18, for the second type of comminuted fracture, it is fixed using the fracture fixation assembly of example three. Specifically, a first bone block 1, a second bone block 2 and a third bone block 3 are spliced and reset to restore to a normal and complete bone shape, wherein a first bone folding line 4 is formed among the first bone block 1, the second bone block 2 and the third bone block 3, the first bone folding line 4 is two bent sections, a second bone folding line 5 is formed between the second bone block 2 and the third bone block 3, and the second bone folding line 5 is in a long strip shape; then the fracture fixation assembly is aligned with the first fracture line 4 and the second fracture line 5; finally, the edge fixing plate 31 and the middle fixing plate 32 are fixed on the bone blocks by fixing screws and are screwed tightly.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A fracture fixation structure, comprising:
a porous metal band (10), said porous metal band (10) being for covering a fracture line;
a fastener disposed on the porous metal band (10), the fastener for securing the porous metal band (10) to a bone block;
the fracture fixation structure further comprises a reinforcing structure arranged on the porous metal band (10);
the reinforcing structure is a reinforcing rib (20) extending along the length direction of the porous metal belt (10);
the reinforcing ribs (20) are positioned on the side edges of the porous metal belt (10);
a bone fusion layer is arranged on the fixing piece;
the porous metal strip (10) comprises a first porous metal strip (11) and a second porous metal strip (12) connected to the first porous metal strip (11), the first porous metal strip (11) and the second porous metal strip (12) being angularly disposed;
the fixture includes an intermediate fixing plate (32), the intermediate fixing plate (32) being connected between the first porous metal strip (11) and the second porous metal strip (12).
2. The fracture fixation structure according to claim 1, wherein the reinforcing ribs (20) are two, and the two reinforcing ribs (20) are oppositely disposed in the width direction of the porous metal strip (10).
3. The fracture fixation structure according to claim 1, wherein the fixing member comprises an edge fixing plate (31), the edge fixing plate (31) protruding from the porous metal strip (10) in a width direction of the porous metal strip (10).
4. The fracture fixation structure of claim 1, wherein the porous metal band (10) has a closed loop shape.
5. The fracture fixation structure of claim 1, wherein the porous metal strip comprises two or more third porous metal strips, the two or more third porous metal strips being connected to each other.
6. A fracture fixation assembly comprising first (40) and second (50) interconnected fracture fixation structures, the first (40) and second (50) fracture fixation structures each being a fracture fixation structure according to any one of claims 1 to 5.
7. The fracture fixation assembly of claim 6, further comprising a connection structure connecting the first (40) and second (50) fracture fixation structures.
8. The fracture fixation assembly of claim 7, wherein the connection structure includes a first connection plate (61) and a second connection plate (62), the first connection plate (61) being disposed on the first fracture fixation structure (40), the second connection plate (62) being disposed on the second fracture fixation structure (50), the first connection plate (61) and the second connection plate (62) cooperating to connect the first fracture fixation structure (40) and the second fracture fixation structure (50).
9. The fracture fixation assembly of claim 6, wherein the porous metal strip (10) of the first fracture fixation structure (40) comprises a first porous metal strip (11) and a second porous metal strip (12) connected to the first porous metal strip (11), the first porous metal strip (11) and the second porous metal strip (12) being angularly disposed, the porous metal strip (10) of the second fracture fixation structure (50) being in a closed loop shape, the first porous metal strip (11), the second porous metal strip (12), and the porous metal strip (10) of the second fracture fixation structure (50) being integrally formed.
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| CN201611265013.7A CN106691560B (en) | 2016-12-30 | 2016-12-30 | Fracture fixing structure and fracture fixing assembly with same |
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| CN201611265013.7A CN106691560B (en) | 2016-12-30 | 2016-12-30 | Fracture fixing structure and fracture fixing assembly with same |
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| CN109498142B (en) * | 2018-12-27 | 2020-12-04 | 郭强 | Closed type in-vitro positioning device for long bone fracture and using method |
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| CN2369641Y (en) * | 1999-03-19 | 2000-03-22 | 开滦矿务局嘉盛实业总公司医院 | Medical bone fracture plate |
| US6827743B2 (en) * | 2001-02-28 | 2004-12-07 | Sdgi Holdings, Inc. | Woven orthopedic implants |
| US6942665B2 (en) * | 2002-05-01 | 2005-09-13 | Integra Signature Technologies, Inc. | Implantable device for covering and opening in a cranium |
| US7824433B2 (en) * | 2005-05-03 | 2010-11-02 | Williams Lytton A | Bone anchored surgical mesh |
| CN200945184Y (en) * | 2006-09-05 | 2007-09-12 | 王文军 | Spinal columnar net fusion device with wing plate |
| CN201353192Y (en) * | 2009-01-14 | 2009-12-02 | 创生医疗器械(江苏)有限公司 | Degradable bone fracture plate |
| CN202105009U (en) * | 2011-06-10 | 2012-01-11 | 中国人民解放军第四军医大学 | Device for fixing bone chips on fracture anastomosis ends after limbs long-bone comminuted fracture |
| CN102198011A (en) * | 2011-06-10 | 2011-09-28 | 中国人民解放军第四军医大学 | Device for fixing bone fragments at fracture joint end after comminuted fracture of long bone of limb |
| CN204484283U (en) * | 2015-03-24 | 2015-07-22 | 张英泽 | A kind ofly promote the bionical inner fixing device of the porous of union of fracture |
| CN206761753U (en) * | 2016-12-30 | 2017-12-19 | 北京爱康宜诚医疗器材有限公司 | Fracture fixation structure and there is its fracture fixation component |
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