CN114795594B

CN114795594B - Prosthesis filling assembly

Info

Publication number: CN114795594B
Application number: CN202210754422.2A
Authority: CN
Inventors: 柴伟; 王彩梅
Original assignee: Beijing AK Medical Co Ltd
Current assignee: Beijing AK Medical Co Ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-10-14
Anticipated expiration: 2042-06-30
Also published as: CN114795594A

Abstract

The present invention provides a prosthetic filling assembly. Wherein the prosthesis filling assembly comprises: the first connecting body is of a first polyhedral structure with a first cavity, and comprises a first connecting plate, a second connecting plate, a third connecting plate, a fourth connecting plate, a fifth connecting plate and a sixth connecting plate which are mutually connected, wherein first connecting columns are arranged on the first connecting plate, the second connecting plate and the third connecting plate, first connecting grooves are arranged on the fourth connecting plate, the fifth connecting plate and the sixth connecting plate, and the first connecting grooves are communicated with the first cavity; when the first connecting bodies are multiple, the first connecting column of one first connecting body is inserted into the first connecting groove of the adjacent first connecting body. By applying the technical scheme of the invention, the problem that the filling block in the prior art cannot meet bone defects with different shapes can be solved.

Description

Prosthesis filling assembly

Technical Field

The invention relates to the technical field of artificial prostheses, in particular to a prosthesis filling assembly.

Background

With the widespread development of artificial joint replacement, more and more patients need to be operated, and artificial joint revision surgery has become a routine surgical operation.

Bone defects are common in the artificial joint revision surgery, and small defects are reconstructed by adopting methods such as granular bone grafting, structural bone grafting or expansion of the diameter of a revision prosthesis, and the like, so that good effects can be obtained. When the defect is serious, the repair is often very troublesome, the difficulty is that an effective support structure is lacked, the existing metal bone defect filling is a relatively approved mode, the method can ensure good support of the metal bone, and can effectively avoid the defect of bone grafting materials. The metal bone defect filling patch conventionally adopts structures such as a hemisphere, a rectangle, a crescent and a special shape, and the like, and the original deformed or diseased bone bed needs to be ground, and after a suitable shape is ground, the filling block is filled or fixed on the bone bed in a screw mode.

This method requires the design of filler blocks of various shapes and sizes in advance, which may adversely affect the production pressure of manufacturers, the stock pressure of distributors, the bone bed treatment of doctors, and the bone retention of patients. The 3D printing customized filling block can be designed according to the defect form of a patient, but the patient needs to be subjected to CT scanning, a certain production cycle of an instrument manufacturer needs to be reserved to complete the data processing, personalized design, 3D printing, processing and sterilization time of the patient, less 3 weeks and more 2 months are needed, the patient and a doctor are difficult to wait, and the form of a bone bed does not necessarily accord with the data obtained by the CT scanning due to the operation in the operation.

Disclosure of Invention

The invention mainly aims to provide a prosthesis filling assembly to solve the problem that a filling block in the prior art cannot meet bone defects with different shapes.

To achieve the above object, the present invention provides a prosthesis filling assembly comprising: the first connecting body is of a first polyhedron structure with a first cavity, and comprises a first connecting plate, a second connecting plate, a third connecting plate, a fourth connecting plate, a fifth connecting plate and a sixth connecting plate which are mutually connected, wherein first connecting columns are arranged on the first connecting plate, the second connecting plate and the third connecting plate, first connecting grooves are arranged on the fourth connecting plate, the fifth connecting plate and the sixth connecting plate, and the first connecting grooves are communicated with the first cavity; when the first connecting bodies are multiple, the first connecting column of one first connecting body is inserted into the first connecting groove of the adjacent first connecting body.

Further, first connecting column includes column body portion and protruding edge portion, and the first end and the first connecting plate of column body portion are connected, and protruding edge portion is connected with the second end of column body portion.

Further, protruding portion of following includes straight portion and the wedge portion of being connected with straight portion, and the surface of wedge portion orientation first connector is the inclined plane, is provided with the arc hole that runs through the setting along the axis direction of barrel between wedge portion and the barrel.

Further, straight portion is the semicircle arc-shaped, is provided with the incision on the terminal surface of the second end of barrel portion, and the incision is located between straight portion and the wedge portion, and the incision is located the central line of barrel portion and towards one side of wedge portion, and the incision is held by the first end of barrel portion to the second in the direction width increase gradually. Further, the first connecting groove comprises a slot and a jack connected with the slot, the diameter of the jack is larger than that of the convex edge, and the width of the slot is smaller than that of the convex edge.

Further, the first connecting body comprises a shared vertex A, the first connecting plate, the second connecting plate and the third connecting plate are intersected at the shared vertex A, and the first connecting column is positioned on the first connecting plate, the second connecting plate and the third connecting plate and close to one side of the shared vertex A.

Furthermore, the first connecting plate and the fourth connecting plate are arranged at an interval, the second connecting plate and the fifth connecting plate are arranged at an interval, the third connecting plate and the sixth connecting plate are arranged at an interval, the jack on the fourth connecting plate and the first connecting post on the first connecting plate are arranged correspondingly, the jack on the fifth connecting plate and the first connecting post on the second connecting plate are arranged correspondingly, and the jack on the sixth connecting plate and the first connecting post on the third connecting plate are arranged correspondingly.

Furthermore, a plurality of first connecting columns are arranged on the first connecting plate, and a plurality of first connecting grooves are arranged on the fourth connecting plate.

Further, a first porous structure layer formed by 3D printing is further arranged on the first connecting plate and/or the second connecting plate and/or the third connecting plate.

Further, the prosthesis filling assembly further comprises a second connector, the second connector is of a second polyhedron structure with a second cavity, the second connector comprises a first plate body, a second plate body, a third plate body, a fourth plate body, a fifth plate body and a sixth plate body which are connected with each other, the first plate body and the fourth plate body are arranged oppositely, the second plate body and the fifth plate body are arranged oppositely, the third plate body and the sixth plate body are arranged oppositely, a second connecting column is arranged on the first plate body and the second plate body, the fourth plate body and the fifth plate body are respectively provided with a second connecting groove, the second connecting grooves are communicated with the second cavity, the second connector is one or more, the second connecting columns are inserted in the first connecting grooves to connect the first connector and the second connector, or when the second connector is multiple, the second connecting columns are inserted in the second connecting grooves to connect the two adjacent second connector.

Furthermore, a second porous structure layer formed by 3D printing is arranged on the third plate body and/or the sixth plate body.

The prosthesis filling assembly comprises a first flat plate, a second flat plate, a third flat plate, a fourth flat plate, a fifth flat plate and a sixth flat plate which are connected with one another, a third connecting column is arranged on the first flat plate and/or the second flat plate, a third connecting groove is arranged on the fourth flat plate and/or the fifth flat plate, one or more third connecting bodies are arranged, the third connecting column can be inserted into the first connecting groove to connect the first connecting body with the third connecting body, or when the third connecting bodies are multiple, the third connecting column can be inserted into the third connecting groove to connect two adjacent third connecting bodies, wherein the first flat plate is a rectangular plate, and a third porous structure layer formed by 3D printing is arranged on the third flat plate and/or the sixth flat plate.

Further, the gap between two adjacent first connecting bodies is filled by bone cement or broken bone particles.

Further, the first cavity forms a medicine carrying bin, and the external medicine is injected into the first cavity through the first connecting groove.

Further, the first connecting body is formed by 3D printing of a titanium alloy material.

By applying the technical scheme of the invention, one or more first connecting bodies are arranged, so that the first connecting bodies with the adaptive number can be selected for splicing and matching according to the shape and size of a bone injury position during filling, the adaptability and flexibility of the prosthesis filling assembly are improved, the prosthesis filling assembly can meet the independent defects or combined bone defects of the iliac region, the ischial region, the pubic region and other positions, the installation is flexible and convenient, the shape and size of the prosthesis filling assembly can be adjusted according to requirements, and the use experience of a patient is improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 shows a schematic structural view of an embodiment of a prosthetic filling assembly according to the present invention;

FIG. 2 shows a schematic structural view of the first connection body of FIG. 1;

FIG. 3 shows a schematic structural view of the second connector of FIG. 1;

FIG. 4 shows a schematic structural view of the third connecting body of FIG. 1;

FIG. 5 shows a schematic view of the second and third connectors of FIG. 1 mated together;

FIG. 6 illustrates a schematic perspective view of another embodiment of a prosthetic filling assembly in accordance with the present invention;

FIG. 7 illustrates a side view of the prosthetic filling assembly of FIG. 6;

FIG. 8 illustrates a top view of the prosthetic fill assembly of FIG. 6;

FIG. 9 illustratesbase:Sub>A cross-sectional view A-A of the prosthetic filling assembly of FIG. 8.

Wherein the figures include the following reference numerals:

10. a first connecting body; 11. a first connecting plate; 12. a second connecting plate; 13. a third connecting plate; 14. a fourth connecting plate; 15. a fifth connecting plate; 16. a sixth connecting plate; 17. a first connecting column; 171. a cylindrical portion; 172. a raised edge portion; 173. a straight portion; 174. a wedge portion; 175. an arc-shaped hole; 176. cutting; 18. a first connecting groove; 181. a slot; 182. a jack; 19. a first porous structure layer; 20. a second connector; 21. a first plate body; 22. a second plate body; 23. a third plate body; 24. a fourth plate body; 25. a fifth plate body; 26. a sixth plate body; 27. a second connecting column; 28. a second connecting groove; 30. a third connector; 31. a first plate; 32. a second plate; 33. a third plate; 34. a fourth plate; 35. a fifth plate; 36. a sixth plate; 37. a third connecting column; 38. and a third connecting groove.

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 it is 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, it need not be discussed further in subsequent figures.

As shown in FIGS. 1 and 2, the present embodiment provides a prosthetic filling assembly. The prosthesis filling assembly comprises a first connecting body 10, the first connecting body 10 is of a first polyhedron structure with a first cavity, the first connecting body 10 comprises a first connecting plate 11, a second connecting plate 12, a third connecting plate 13, a fourth connecting plate 14, a fifth connecting plate 15 and a sixth connecting plate 16 which are mutually connected, first connecting columns 17 are arranged on the first connecting plate 11, the second connecting plate 12 and the third connecting plate 13, first connecting grooves 18 are arranged on the fourth connecting plate 14, the fifth connecting plate 15 and the sixth connecting plate 16, and the first connecting grooves 18 are communicated with the first cavity; one or more first connecting bodies 10 are provided, and when there are a plurality of first connecting bodies 10, the first connecting column 17 of one first connecting body 10 is inserted into the first connecting groove 18 of the adjacent first connecting body 10.

In this embodiment, owing to set up first connector 10, first connector is one or more, thereby filling, can be according to the shape and the size of bone injury position, the cooperation of pegging graft is carried out to the first connector of selection adaptation quantity, and then adaptability and the flexibility that the subassembly was filled to the false body have been improved, it can satisfy ilium district to guarantee that the subassembly is filled to the false body, ischial region, the independent defect or the joint bone defect of positions such as pubic region, and the installation is nimble convenient, can adjust the shape that the subassembly was filled to the false body according to the demand, the size, patient's use experience has been improved.

Further, the first cavity forms a drug-loaded chamber, and the external drug is injected into the first cavity through the first connection slot 18. Because first connector 10 is from taking the medicine storehouse to when carrying out the false body and filling, can pack the medicine to the medicine storehouse through first connecting groove 18, have very strong meaning to the renovation treatment, can realize effects such as antibiotic, antiphlogosis through the medicine carrying.

As shown in fig. 1 and 2, in the present embodiment, the first connecting column 17 includes a column portion 171 and a flange portion 172, a first end of the column portion 171 is connected to the first connecting plate 11, and the flange portion 172 is connected to a second end of the column portion 171.

Through the arrangement, after the first connecting column 17 is connected into the first connecting groove 18, the convex edge part 172 can be limited in the first cavity by the first connecting groove 18, the column part 171 can be stopped in the first connecting groove 18 and can not be actively separated, the multiple parts of the prosthesis filling assembly can be restrained by stopping each other, and the separation between two adjacent first connecting bodies 10 in the use process is prevented.

As shown in fig. 1 and 2, in the present embodiment, the first connection groove 18 includes a slot 181 and an insertion hole 182 connected to the slot 181, the diameter of the insertion hole 182 is larger than the diameter of the flange 172, and the width of the slot 181 is smaller than the diameter of the flange 172.

Specifically, when the insertion fitting is performed, the protruding edge 172 is inserted into the insertion hole 182, so that the column portion 171 enters the insertion hole 182, and then the column portion 171 moves along the insertion slot 181, so that the protruding edge 172 is stopped by the insertion slot 181 inside the first connecting body 10, and two adjacent first connecting bodies 10 can be effectively prevented from being separated from each other, thereby ensuring the stability of the combined structure of the prosthesis filling assembly.

As shown in fig. 1 and 2, in the present embodiment, the first connecting body 10 includes a common vertex a at which the first connecting plate 11, the second connecting plate 12, and the third connecting plate 13 intersect, and the first connecting column 17 is located on the first connecting plate 11, the second connecting plate 12, and the third connecting plate 13 near the common vertex a side. The above-mentioned "side close to the common vertex a" means that the first connecting pillar 17 is disposed adjacent to the side where the common vertex a is located, that is, the distance between the first connecting pillar 17 and the side where the common vertex a is located is smaller than the distance between the first connecting pillar 17 and the side opposite to the side where the common vertex a is located.

Set up the first connector 17 of three groups of first connector 10 through the aforesaid and concentrate and be close to A point setting to make adjacent first connector 10 inlay the direction of inserting different, a plurality of first connector 10 interconnect back hookup location is crisscross, can play the effect of mutual restriction, has further guaranteed to cooperate stably between the adjacent first connector 10 of intercombination.

Preferably, in this embodiment, the first connecting plate 11 is disposed at an interval from the fourth connecting plate 14, the second connecting plate 12 is disposed at an interval from the fifth connecting plate 15, the third connecting plate 13 is disposed at an interval from the sixth connecting plate 16, the insertion hole 182 on the fourth connecting plate 14 is disposed corresponding to the first connection post 17 on the first connecting plate 11, the insertion hole 182 on the fifth connecting plate 15 is disposed corresponding to the first connection post 17 on the second connecting plate 12, and the insertion hole 182 on the sixth connecting plate 16 is disposed corresponding to the first connection post 17 on the third connecting plate 13.

As shown in fig. 1 and 2, in the present embodiment, the first connecting plate 11 is provided with a plurality of first connecting posts 17, and the fourth connecting plate 14 is provided with a plurality of first connecting grooves 18.

The arrangement increases the contact area of connection and improves the connection strength.

As shown in fig. 1 and 2, in the present embodiment, the first porous structure layer 19 formed by 3D printing is further disposed on the first connecting plate 11, the second connecting plate 12 and the third connecting plate 13.

Due to the arrangement of the first porous structure layer 19, the prosthesis filling assembly is conveniently combined with a bone bed, the bone ingrowth is facilitated, and a rough porous structure can be provided when the prosthesis filling assembly is combined with bone cement, so that the binding force of the bone cement is enhanced.

As shown in fig. 3 and 5, in the present embodiment, the prosthesis filling assembly further includes a second connecting body 20, the second connecting body 20 has a second polyhedron structure with a second cavity, the second connecting body 20 includes a first plate body 21, a second plate body 22, a third plate body 23, a fourth plate body 24, a fifth plate body 25 and a sixth plate body 26 which are connected to each other, a second connecting column 27 is disposed on the first plate body 21 and the second plate body 22, a second connecting groove 28 is disposed on each of the fourth plate body 24 and the fifth plate body 25, the second connecting groove 28 is disposed in communication with the second cavity, one or more second connecting bodies 20 are disposed, the second connecting column 27 is inserted into the first connecting groove 18 to connect the first connecting body 10 and the second connecting body 20, or the second connecting column 27 is inserted into the second connecting groove 28 to connect two adjacent second connecting bodies 20.

The second connecting column 27 includes a column portion 271 and a protruding edge portion 272 provided at an end of the column portion 271. The body 271 and the ledge 272 of the second connecting post 27 are similar to the first connecting post in principle, and will not be described again.

Due to the fact that the second connecting body 20 is arranged, when the prosthesis filling assembly is formed, the first connecting body 10 and the second connecting body 20 can be selected according to needs, further the periphery of the prosthesis filling assembly can have more plane structures, the phenomenon that the periphery structure of the integrated filling assembly is influenced by redundant groove and column structures is avoided, and the compactness and the stability of the whole structure of the prosthesis filling assembly are guaranteed.

As shown in fig. 3, in the present embodiment, a second porous structure layer formed by 3D printing is disposed on the third plate body 23 and the sixth plate body 26.

The second porous structure layer is arranged, so that the prosthesis filling assembly is combined with a bone bed conveniently, bone ingrowth is facilitated, a rough porous structure can be provided when the prosthesis filling assembly is combined with bone cement, and the binding force of the bone cement is enhanced.

As shown in fig. 4, in this embodiment, the prosthetic filling assembly further includes a third connecting body 30, the third connecting body 30 is a multi-third-sided structure having a third cavity, the prosthetic filling assembly includes a first flat plate 31, a second flat plate 32, a third flat plate 33, a fourth flat plate 34, a fifth flat plate 35 and a sixth flat plate 36 that are connected to each other, a third connecting column 37 is disposed on the first flat plate 31 and/or the second flat plate 32, a third connecting groove 38 is disposed on the fourth flat plate 34 and/or the fifth flat plate 35, one or more third connecting bodies 30 are provided, the third connecting column 37 can be inserted into the first connecting groove 18 to connect the first connecting body 10 and the third connecting body 30, or the third connecting column 37 can be inserted into the third connecting groove 38 to connect two adjacent third connecting bodies 30, wherein the first flat plate 31 is a rectangular plate, and a third porous structural layer formed by 3D printing is disposed on the third flat plate 33 and/or the sixth flat plate 36.

Because the first plate 31 is a rectangular plate, for the case that the first connector 10 and the second connector 20 are both of a cubic structure, the third connector 30 can satisfy the filling requirement of the slit, so that the combination of the prosthesis filling assembly is more flexible, and a proper connector can be selected for assembly according to the size of the filling position.

Preferably, the gap between two adjacent first connection bodies 10 is filled with bone cement or crushed bone particles.

The arrangement further improves the connection strength between two adjacent first connecting bodies 10, and can also effectively fill the gap between two adjacent first connecting bodies 10, thereby ensuring the stability of bone reconstruction.

Of course, the bone reconstruction can be achieved by filling bone cement or broken bone particles between the first connecting body 10 and the second connecting body 20, between two adjacent second connecting bodies 20, between the second connecting body 20 and the third connecting body 30, between two adjacent third connecting bodies 30, and between the first connecting body 10 and the third connecting body 30.

Further, the first connecting body 10 is formed by 3D printing of a titanium alloy material.

The above arrangement ensures the structural strength of the first connecting body 10 itself, and facilitates the processing.

Fig. 6 to 9 show a schematic structural view of another embodiment of the prosthesis filling assembly according to the invention.

In the embodiment shown in fig. 6 to 9, another embodiment of the first coupling body and the first coupling post is shown, in which the overall shape is different from that of the first coupling body shown in fig. 2 and the wedge 174, the arc hole 175 and the slit 176 are provided from that of the first coupling post shown in fig. 2. The above structure and its specific technical effects will be explained below:

in the embodiment shown in fig. 6 to 9, the ledge 172 comprises a flat 173 and a wedge 174 connected to the flat 173. The surface of the straight portion 173 facing the first connection body 10 is a flat surface, and the surface of the wedge portion 174 facing the first connection body 10 is an inclined surface, the distance between which and the first connection body 10 is gradually reduced in a direction gradually away from the straight portion 173. An arc hole 175 is provided between the wedge 174 and the column 171 and penetrates the column 171 in the axial direction. The provision of the arcuate aperture 175 enables the wedge portion 174 to be deformed away from the first connector 10.

When first connector strut 17 cooperates with first connecting groove 18, protruding edge 172 can stretch into the inside of setting up fifth connecting plate 15 or sixth connecting plate 16 of first connecting groove 18, at this moment, protruding edge 172 can cooperate with the internal face of fifth connecting plate 15 or sixth connecting plate 16 towards the surface of first connecting body 10, when first connector strut 17 removes along first connecting groove 18, foretell internal face can produce the butt cooperation with the inclined plane of wedge portion 174, wedge portion 174 can be to the orientation deformation of keeping away from first connecting body 10 and can produce inseparable cooperation with the internal face this moment, play and compress tightly the effect, prevent that first connector strut 17 from assembling to produce after the position and remove.

As shown in fig. 7 to 9, in order to make the wedge portion 174 more easily deformed, the straight portion 173 is shaped like a half arc, and a notch 176 is provided on an end surface of the second end of the cylinder portion 171, the notch 176 being located between the straight portion 173 and the wedge portion 174. To further facilitate the deformation of the wedge 174, the slit 176 is located on a side of the center line of the column portion 171 toward the wedge 174, and the width of the slit 176 gradually increases from the first end to the second end of the column portion 171. The slit 176 can thus effectively escape the wedge 174. As shown in fig. 7, the notch has two opposite side surfaces, one of which is a vertical surface passing through the center line of the column portion 171 and perpendicular to the relative movement direction of the first connecting post 17 and the first connecting slot 18, and the other of which is an inclined surface, wherein the distance between the inclined surface and the vertical surface gradually increases from the first end to the second end of the column portion 171.

The technical scheme of the embodiment has the following advantages:

1. the method has better adaptability to independent defects and combined bone defects of an ilium region, an ischium region and a pubis region;

2. the porous structure layer printed in a 3D mode is arranged, so that bone ingrowth can be facilitated when the porous structure layer is combined with a bone bed, a rough porous structure can be provided when the porous structure layer is combined with bone cement, and the binding force of the bone cement is enhanced;

3. the other part is a solid structure and is manufactured by 3D printing, and the inner layer and the integral frame structure are manufactured into a whole and are made of titanium alloy or tantalum alloy;

4. the interior of the drug-loaded cabin is of a hollow structure, can be used as a drug-loaded cabin, can be filled with various drugs, such as drugs containing antibiotics and BMP, hydrogel and the like, has great significance for revision therapy, and can realize the effects of antibiosis, antiphlogosis and the like through drug loading;

5. the bone reconstruction device is flexible and convenient to install, can adjust the filling blocks in shapes and sizes according to requirements, can be flexibly assembled into shapes and sizes which are as close as possible to bone defects, can be filled in gaps with the help of bone cement or broken bone particles, and is a scheme for reconstructing bones.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

owing to set up first connector, first connector is one or more, thereby filling, can be according to the shape and the size of bone injury position, the cooperation of pegging graft is carried out to the first connector of selection adaptation quantity, and then the adaptability and the flexibility of prosthesis filling assembly have been improved, it can satisfy ilium district to guarantee the prosthesis filling assembly, ischial region, the independent defect or the joint bone defect of positions such as pubic region, and the installation is nimble convenient, can be according to the shape that the demand adjusted prosthesis filling assembly, the size, patient's use experience has been improved.

For ease of description, spatially relative terms such as "over 8230," "upper surface," "above," and the like may be used herein to describe the spatial positional relationship of one device or feature to other devices or features 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 terms "at 8230; \8230; above" may include both orientations "at 8230; \8230; above" and "at 8230; \8230; 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.

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

1. A prosthetic filling assembly, comprising:

the first connecting body (10) is of a first polyhedron structure with a first cavity, the first connecting body (10) comprises a first connecting plate (11), a second connecting plate (12), a third connecting plate (13), a fourth connecting plate (14), a fifth connecting plate (15) and a sixth connecting plate (16) which are mutually connected, first connecting columns (17) are arranged on the first connecting plate (11), the second connecting plate (12) and the third connecting plate (13), first connecting grooves (18) are arranged on the fourth connecting plate (14), the fifth connecting plate (15) and the sixth connecting plate (16), and the first connecting grooves (18) are communicated with the first cavity;

wherein the number of the first connecting bodies (10) is one or more, when the number of the first connecting bodies (10) is multiple, the first connecting column (17) of one first connecting body (10) is inserted into the first connecting groove (18) of the adjacent first connecting body (10);

the first connecting column (17) comprises a column part (171) and a convex edge part (172), a first end of the column part (171) is connected with the first connecting plate (11), and the convex edge part (172) is connected with a second end of the column part (171);

protruding edge portion (172) including straight portion (173) and with wedge portion (174) that straight portion (173) are connected, wedge portion (174) orientation the surface of first connector (10) is the inclined plane, the inclined plane with distance between the first connector (10) is keeping away from straight portion (173) the direction on reduce gradually, wedge portion (174) with be provided with the edge between post portion (171) the axis direction of post portion (171) runs through arc hole (175) that set up.

2. The prosthetic filling assembly of claim 1, wherein the straight portion (173) is semi-arc shaped, and wherein a notch (176) is provided on an end surface of the second end of the cylindrical portion (171), the notch (176) being located between the straight portion (173) and the wedge portion (174), the notch (176) being located on a side of a centerline of the cylindrical portion (171) facing the wedge portion (174), the notch (176) gradually increasing in width in a direction from the first end to the second end of the cylindrical portion (171).

3. The prosthetic filling assembly of claim 1 wherein the first coupling groove (18) comprises a socket (181) and a receptacle (182) coupled to the socket (181), the receptacle (182) having a diameter greater than a diameter of the ledge (172), the socket (181) having a width dimension less than the diameter of the ledge (172).

4. The prosthetic filling assembly of claim 1, wherein the first connector body (10) comprises a common apex A at which the first (11), second (12) and third (13) connection plates intersect, the first connection post (17) being located on the first (11), second (12) and third (13) connection plates proximate to one side of the common apex A.

5. A prosthesis filling assembly according to claim 3, wherein the first connecting plate (11) is spaced apart from the fourth connecting plate (14), the second connecting plate (12) is spaced apart from the fifth connecting plate (15), the third connecting plate (13) is spaced apart from the sixth connecting plate (16), the receptacle (182) on the fourth connecting plate (14) is arranged corresponding to the first connecting post (17) on the first connecting plate (11), the receptacle (182) on the fifth connecting plate (15) is arranged corresponding to the first connecting post (17) on the second connecting plate (12), and the receptacle (182) on the sixth connecting plate (16) is arranged corresponding to the first connecting post (17) on the third connecting plate (13).

6. The prosthesis filling assembly according to claim 1, wherein said first connecting plate (11) is provided with a plurality of said first connecting columns (17) and said fourth connecting plate (14) is provided with a plurality of said first connecting grooves (18).

7. The prosthetic filling assembly according to claim 1, wherein the first connecting plate (11) and/or the second connecting plate (12) and/or the third connecting plate (13) is further provided with a first porous structural layer (19) formed by 3D printing.

8. The prosthesis filling assembly according to claim 1, further comprising a second connecting body (20), wherein the second connecting body (20) is a second polyhedron structure having a second cavity, the second connecting body (20) comprises a first plate body (21), a second plate body (22), a third plate body (23), a fourth plate body (24), a fifth plate body (25) and a sixth plate body (26) which are connected with each other, the first plate body (21) and the fourth plate body (24) are oppositely arranged, the second plate body (22) and the fifth plate body (25) are oppositely arranged, the third plate body (23) and the sixth plate body (26) are oppositely arranged, a second connecting column (27) is arranged on the first plate body (21) and the second plate body (22), the fourth plate body (24) and the fifth plate body (25) are both provided with a second connecting column (28), the second connecting column (28) is arranged in communication with the second cavity, the second connecting body (20) is one or more, the second connecting column (27) is arranged on the second plate body (18), and the second connecting column (28) is inserted into the second connecting column (20), or the second connecting body (20) is inserted into the second connecting column (28), so as to connect two adjacent second connecting bodies (20).

9. The prosthesis filling assembly according to claim 8, wherein a second porous structural layer is provided on said third plate (23) and/or on said sixth plate (26) by 3D printing.

10. The prosthetic filling assembly according to claim 1, further comprising a third connecting body (30), wherein the third connecting body (30) is a multi-third-sided structure having a third cavity, wherein the prosthetic filling assembly comprises a first flat plate (31), a second flat plate (32), a third flat plate (33), a fourth flat plate (34), a fifth flat plate (35) and a sixth flat plate (36) connected to each other, wherein a third connecting column (37) is provided on the first flat plate (31) and/or the second flat plate (32), wherein a third connecting groove (38) is provided on the fourth flat plate (34) and/or the fifth flat plate (35), wherein the third connecting body (30) is one or more, wherein the third connecting column (37) is insertable into the first connecting groove (18) to connect the first connecting body (10) and the third connecting body (30), or wherein when the third connecting body (30) is multiple, the third connecting column (37) is insertable into the third connecting groove (18) to connect two adjacent flat plates (31) to form a multi-hole structure layer, wherein the third connecting column (31) and/or the third connecting column (36) are insertable into the third connecting plate (31) and/or the sixth connecting layer (36) is formed.