CN212346821U - Fibula prosthesis based on 3D printing - Google Patents
Fibula prosthesis based on 3D printing Download PDFInfo
- Publication number
- CN212346821U CN212346821U CN202021228721.5U CN202021228721U CN212346821U CN 212346821 U CN212346821 U CN 212346821U CN 202021228721 U CN202021228721 U CN 202021228721U CN 212346821 U CN212346821 U CN 212346821U
- Authority
- CN
- China
- Prior art keywords
- fibula
- prosthesis
- printing
- small head
- main body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Prostheses (AREA)
Abstract
The utility model provides a fibula false body based on 3D prints, including the false body main part that utilizes the profile modeling design to obtain, the false body main part adopts 3D to print integrated into one piece, the fibula is connected to the false body main part. When the fibula is required to be transplanted, the focus of the fibula of the patient is removed, the residual fibula with complete functions is left, and the prosthesis main body is connected with the residual fibula to form the fibula prosthesis of the patient. The prosthesis main body is integrally formed by 3D printing. The fibula prosthesis based on 3D printing can treat fibula injuries, is convenient to install, simple to operate, short in treatment period and good in effect, is manufactured mainly based on the 3D printing technology, is printed integrally, namely is formed quickly, and ensures the strength of the prosthesis; the fibula prosthesis is designed in a copying manner and customized individually, and can be perfectly adapted to the affected limb of a patient; the fibula prosthesis based on 3D printing has good joint stability, few later complications, and good initial bone ingrowth and medium and long-term stability.
Description
Technical Field
The utility model relates to the technical field of medical equipment, especially indicate a fibula false body based on 3D prints.
Background
Fibula transplantation reconstruction is mostly adopted for clinically treating bone defects caused by bone tumors. The fibula transplantation which is anastomotic with blood vessels is widely applied clinically, and the technical means is rapidly developed. Although fibula transplantation has many advantages, complications which often occur after operation and are troubling clinicians are always difficult, such as unstable knee joints and ankle joints, loose and even everted joint structures, long-term pain near the joints, and subsequent complications such as traumatic arthritis. Pho reported knee joint instability during movement after upper fibula grafting, and babhulkar et al reported ankle joint instability after fibula grafting. It has also been reported that children suffering from fibula transplantation are prone to ankle eversion and severe patients need surgical correction.
In addition to the vascular anastomotic fibular grafting mentioned above, the conditions that result in a fibular defect include, but are not limited to:
1. is taken from the fibula tip of a body to treat giant cell tumors of bones such as the distal ulna and radius, the proximal tibia and the like, or joint damage caused by other reasons.
2. Is taken from the middle section of the fibula of the body to treat fracture nonunion and nonunion of tibia, humerus and the like.
3. Taking the bone grafting filling from the fibula of a body, taking part of the autogenous fibula in pelvic surgery, and filling the gap of the metal acetabular cup after mashing.
4. Comminuted fibula fractures do not heal.
5. Fibular tumors.
In the face of fibula bone defects caused by the above various reasons, the following three methods are mainly adopted for treatment: a. dissociating; b. fixing the inner steel plate; c. and (5) external fixation. The three modes only relieve complications caused by fibula transplantation to a certain extent, cannot treat fibula defect and rebuild joint capsule, and have long treatment period and poor effect.
SUMMERY OF THE UTILITY MODEL
The utility model provides a fibula false body based on 3D prints. The existing fibula treatment has the following problems that fibula bone defect cannot be treated, joint capsules cannot be reconstructed, the treatment period is long, and the effect is poor.
In order to solve the above technical problem, an embodiment of the present invention provides the following solutions:
the fibula prosthesis based on 3D printing comprises a prosthesis main body obtained by utilizing profile modeling design, wherein the prosthesis main body is integrally formed by adopting 3D printing, and the prosthesis main body is connected with a fibula.
Wherein, at least one end of the prosthesis main body is provided with a prosthesis contact surface grid and a prosthesis broach extending outwards;
at least one end of the fibula is provided with a fibula cutting bone, a fibula medullary cavity of the fibula cutting bone is exposed, the prosthesis intramedullary nail is inserted into the fibula medullary cavity of the fibula, and the prosthesis contact surface grid is contacted with the fibula cutting bone so as to connect the fibula prosthesis with the fibula.
When the prosthesis main body replaces an osteotomy section with a fibula small head and is connected with the fibula to form a fibula prosthesis, a fibula contact surface and a prosthesis broach are arranged at one end of the prosthesis main body, and the other end of the prosthesis main body is connected with the fibula small head.
When the prosthesis main body replaces the middle section of the fibula and is connected with the fibula to form the fibula prosthesis, the two ends of the prosthesis main body are respectively provided with a fibula contact surface and a prosthesis broach.
Wherein the end face shape of the prosthesis contact surface grid is matched with the end face shape of the fibula osteotomy.
Wherein the thickness of the mesh of the contact surface of the prosthesis is 1.5-3 mm, and the aperture of the mesh is 200-400 μm.
Wherein the outer shape of the prosthesis broach is matched with the size and the bending degree of a fibula marrow cavity of the fibula osteotomy;
the diameter and the length of the prosthesis broach are matched with the size of a fibula medullary cavity of the fibula osteotomy.
The contact surface of the small head of the prosthesis and the tibia is designed in a copying mode, and the joint surface of the small head of the prosthesis rebuilds the joint surface of the small head of the fibula.
The outer side of the small head of the prosthesis is provided with a suture hole, the diameter and radian diameter of the suture hole are matched with those of a curved needle, and the diameter and radian diameter of the suture hole are 2.5-4 mm.
The small head of the prosthesis is provided with a buckle, the main body of the prosthesis is provided with a groove, and the buckle is connected with the groove in a clamping manner, so that the small head of the prosthesis is arranged on the main body of the prosthesis.
The above technical scheme of the utility model at least include following beneficial effect:
according to the technical scheme of the utility model, the fibula prosthesis based on 3D printing can treat fibula injuries, and has the advantages of convenient installation, simple operation, short treatment period and good effect; the prosthesis main body of the fibula prosthesis based on 3D printing is manufactured based on a 3D printing technology, and is integrally printed, namely, the prosthesis main body is quickly formed, and the strength of the prosthesis is also ensured; the fibula prosthesis is designed in a copying manner and customized individually, and can be perfectly adapted to the affected limb of a patient; the fibula prosthesis based on 3D printing has good joint stability, few later complications, and good initial bone ingrowth and medium and long-term stability.
Drawings
Fig. 1 is a schematic structural diagram of a fibula prosthesis based on 3D printing according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second embodiment of the fibula prosthesis based on 3D printing according to the present invention.
Reference numerals:
1. a fibula prosthesis; 11. a prosthesis contact surface mesh; 12. a prosthetic broach; 13. a prosthetic broach surface; 14. A prosthesis body; 15. a concave groove; 2. a small head of the prosthesis; 21. a suture hole; 22. buckling; 3. a fibula; 31. The fibular medullary cavity; 4. the tibia.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
As shown in fig. 1-2, the present embodiment provides a fibula prosthesis based on 3D printing, which includes a prosthesis main body 14 and a fibula 3, the prosthesis main body 14 is connected to the fibula 3, when a problem occurs in the fibula 3 of a patient and the fibula 3 needs to be transplanted, a focus of the fibula 3 of the patient is removed, a remaining fibula 3 with complete function is left, and the prosthesis main body 14 is connected to the remaining fibula 3 to form a fibula prosthesis 1 of the patient. The prosthesis body 14 of this embodiment is adapted to the patient's fibula 3 by a contoured design. The prosthesis main body 14 is integrally formed by 3D printing, the prosthesis main body 14 is connected with the fibula 3, the prosthesis main body 14 of the fibula prosthesis based on 3D printing is manufactured based on a 3D printing technology, and the prosthesis main body 14 is integrally printed, namely, the prosthesis main body is quickly formed, and the strength of the prosthesis is also ensured; the fibula prosthesis based on 3D printing can treat fibula injuries and is convenient to install; the fibula prosthesis 1 is designed in a copying manner and customized individually, and can be perfectly adapted to the affected limb of a patient; the fibula prosthesis based on 3D printing has good joint stability, few later complications, and good initial bone ingrowth and medium and long-term stability.
At least one end of the prosthesis main body 14 of the embodiment is provided with a prosthesis contact surface grid 11 and a prosthesis broach 12 extending outwards, and the prosthesis contact surface grid 11 is a bone-like trabecular porous structure; at least one end of the fibula 3 is provided with a fibula 3 osteotomy, a fibula medullary cavity 31 of the fibula 3 osteotomy is exposed, a prosthesis intramedullary nail 12 is inserted into the fibula medullary cavity 31 of the fibula 3, the prosthesis contact surface grid 11 contacts the fibula 3 osteotomy to connect the fibula prosthesis 1 with the fibula 3, and the prosthesis main body 14 of the embodiment comprises the fibula intramedullary nail 12 which is a metal solid made of titanium alloy material, so that the mechanical strength of the prosthesis is ensured.
The end face of the prosthesis contact surface grid 11 of the embodiment is designed according to the shape of the osteotomy position of the fibula 3, the end face shape of the prosthesis contact surface grid 11 is matched with the end face shape of the osteotomy of the fibula 3, and the function of mechanical bearing of the fibula 3 is realized. The thickness of the mesh 11 on the contact surface of the prosthesis is 1.5-3 mm, the aperture of the mesh is 200-400 microns, crawling and bone growing of the fibula 3 cortex of the fibula 3 are facilitated, and medium-term and long-term stability of the prosthesis is facilitated.
The outer shape of the prosthetic intramedullary nail 12 of the embodiment is designed according to the size and the bending degree of the fibula medullary cavity 31 of a patient, the outer shape of the prosthetic intramedullary nail 12 is matched with the size and the bending degree of the fibula medullary cavity 31 of the osteotomy of the fibula 3, the diameter b and the length a of the prosthetic intramedullary nail 12 are matched with the size of the fibula medullary cavity 31 of the osteotomy of the fibula 3, and the prosthetic can meet the individual requirements of the patient. The prosthetic broach 12 has a prosthetic broach surface 13, the prosthetic broach surface 13 comprising a titanium coating to facilitate medium and long term stabilization of the prosthesis.
The length of the prosthesis main body 14 of the embodiment is determined according to the osteotomy size of the patient, and the length of the prosthesis main body 14 is matched with the osteotomy size of the fibula 3, so that the length of the affected side of the patient is ensured to be consistent with the length of the healthy side.
In the first embodiment, the first step is,
as shown in fig. 1, when the fibula prosthesis based on 3D printing of the present embodiment is applied to a fibula small head of a fibula 3 to be transplanted, at this time, the fibula small head of the fibula 3 and a fibula 3 segment close to the fibula small head of a patient are cut off and replaced with a prosthesis main body 14. Specifically, the fibula 3 of the patient and the fibula 3 close to the fibula are cut off, the cut-off fibula and the fibula 3 close to the fibula are called as bone cutting segments with fibula heads, and the rest of the fibula 3 is called as fibula 3 bone cutting. The medullary chamber 31 of the fibula 3 is exposed at the osteotomy, and the prosthesis body 14 is installed on the osteotomy of the fibula 3 and the medullary chamber 31 of the fibula. One end of the prosthesis main body 14 is provided with a prosthesis contact surface grid 11 and a prosthesis broach 12 which extends outwards, and the other end of the prosthesis main body 14 is connected with the prosthesis small head 2. The prosthesis intramedullary nail 12 is inserted into a fibula medullary cavity 31 of the fibula 3, the prosthesis contact surface grid 11 contacts the osteotomy of the fibula 3, so that the fibula prosthesis 1 is connected with the fibula 3, and the prosthesis main body 14 replaces the osteotomy segment with the fibula small head to be connected with the fibula 3 to form the fibula prosthesis 1.
The small head 2 of the prosthesis is provided with the buckle 22, the main body 14 of the prosthesis is provided with the groove 15, the buckle 22 is connected with the groove 15 in a clamping manner, so that the small head 2 of the prosthesis can be installed on the main body 14 of the prosthesis, and the buckle 22 is connected without tool installation, thereby being convenient and fast and firm in fixation. The shape and the size of the small head 2 of the prosthesis are designed according to the fibula 3 of a patient, the contact surface of the small head 2 of the prosthesis and the tibia 4 is designed in a copying mode, the small head of the prosthesis is made of ultra-high molecular weight polyethylene materials, and the joint surface of the small head of the prosthesis is rebuilt on the joint surface of the small head of the fibula, so that the prosthesis is guaranteed to meet the individual requirements of the patient. The outer side of the small head 2 of the prosthesis is provided with a suture hole 21, the diameter and radian diameter of the suture hole 21 are matched with the diameter of a curved needle, the diameter and radian diameter of the suture hole 21 are 2.5-4 mm, in the operation process, the suture hole 21 is utilized, soft tissues are fixed by adopting sutures to manufacture a joint capsule, the joint capsule is stabilized, and the diameter and radian diameter of the suture hole 21 are determined according to the diameter and radian diameter of the curved needle used in the operation.
In the second embodiment, the first embodiment of the method,
as shown in fig. 2, when the fibula prosthesis based on 3D printing of the present embodiment is applied to a middle section of a fibula 3 to be transplanted, fibula 3 osteotomies are provided on opposite ends of the fibula 3 located on the inner side of the middle section of the fibula 3, and a fibula medullary cavity 31 of the fibula 3 osteotomy is exposed. Prosthesis contact surface grids 11 and prosthesis intramedullary nails 12 extending outwards are arranged at two ends of the prosthesis main body 14, the prosthesis intramedullary nails 12 at two ends of the fibula 3 are respectively and correspondingly inserted into fibula medullary cavities 31 opposite to the inner sides of the fibulas 3, the prosthesis contact surface grids 11 at two ends of the fibulas 3 are respectively and correspondingly contacted with fibulas 3 opposite to the inner sides of the fibulas 3 to cut bones, so that the fibula prosthesis 1 is connected with the fibulas 3, and the prosthesis main body 14 replaces the middle section of the fibulas 3 to be connected with the fibulas 3 to form the fibula prosthesis 1.
The prosthesis main body 14 of the fibula prosthesis based on 3D printing is manufactured based on 3D printing technology, and is integrally printed, namely, the prosthesis main body is quickly formed, and the strength of the prosthesis is also ensured; through the advanced design of the 3D printing prosthesis contact surface grid 11, better bone ingrowth is obtained, and a better effect of initial bone ingrowth and medium-long term stability is achieved; the fibula prosthesis 1 is designed in a copying manner, is customized individually, and can be perfectly adapted to the affected limb of the patient; the osteotomy contact surface of the fibula prosthesis 1 and the fibula 3 is designed into a bone trabecula-like porous structure, so that the bone ingrowth and the bone crawling are facilitated, and the long-term stability of the prosthesis is ensured; the artificial microcephaly 2 reconstructs the fibula microcephaly joint surface, and the joint function can be recovered; the suture holes 21 are beneficial to soft tissue fixation, and the early-stage stability of the prosthesis is ensured.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The fibula prosthesis based on 3D printing is characterized by comprising a prosthesis main body obtained by utilizing profile modeling design, wherein the prosthesis main body is integrally formed by adopting 3D printing and is connected with a fibula.
2. The 3D printing-based fibula prosthesis of claim 1, wherein at least one end of the prosthesis body is provided with a prosthesis contact surface grid and an outwardly extending prosthesis broach;
at least one end of the fibula is provided with a fibula cutting bone, a fibula medullary cavity of the fibula cutting bone is exposed, the prosthesis intramedullary nail is inserted into the fibula medullary cavity of the fibula, and the prosthesis contact surface grid is contacted with the fibula cutting bone so as to connect the fibula prosthesis with the fibula.
3. The fibula prosthesis based on 3D printing as claimed in claim 2, wherein when the prosthesis body is connected with the fibula to form a fibula prosthesis instead of the osteotomy segment with the fibula small head, one end of the prosthesis body is provided with a fibula contact surface and a prosthesis broach, and the other end of the prosthesis body is connected with the fibula small head.
4. The fibula prosthesis based on 3D printing as claimed in claim 2, wherein when the prosthesis body is connected with the fibula instead of the middle fibula to form the fibula prosthesis, the two ends of the prosthesis body are respectively provided with a fibula contact surface and a prosthesis broach.
5. The 3D printing-based fibula prosthesis of claim 2, wherein the end shape of the prosthesis contact surface mesh is adapted to the end shape of the fibular osteotomy.
6. The 3D printing-based fibula prosthesis as claimed in claim 2, wherein the mesh thickness of the mesh of the prosthesis contact surface is 1.5-3 mm, and the aperture of the mesh is 200-400 μm.
7. The fibula prosthesis based on 3D printing as claimed in claim 2, wherein the profile of the prosthesis broach is adapted to the size and degree of curvature of the fibula medullary cavity of the fibular osteotomy;
the diameter and the length of the prosthesis broach are matched with the size of a fibula medullary cavity of the fibula osteotomy.
8. The fibula prosthesis based on 3D printing is characterized in that the contact surface of the small head of the prosthesis and the tibia is designed in a copying mode, and the joint surface of the small head of the prosthesis rebuilds the joint surface of the small head of the fibula.
9. A fibula prosthesis based on 3D printing is characterized in that a suture hole is formed in the outer side of the small head of the prosthesis, the diameter and the radian diameter of the suture hole are matched with those of a curved needle, and the diameter and the radian diameter of the suture hole are 2.5-4 mm.
10. The fibula prosthesis based on 3D printing as claimed in claim 3, wherein the small head of the prosthesis is provided with a buckle, the main body of the prosthesis is provided with a groove, and the buckle is connected with the groove in a clamping manner, so that the small head of the prosthesis can be mounted on the main body of the prosthesis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021228721.5U CN212346821U (en) | 2020-06-29 | 2020-06-29 | Fibula prosthesis based on 3D printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021228721.5U CN212346821U (en) | 2020-06-29 | 2020-06-29 | Fibula prosthesis based on 3D printing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212346821U true CN212346821U (en) | 2021-01-15 |
Family
ID=74151986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021228721.5U Active CN212346821U (en) | 2020-06-29 | 2020-06-29 | Fibula prosthesis based on 3D printing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212346821U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114028035A (en) * | 2020-06-29 | 2022-02-11 | 北京力达康科技有限公司 | Fibula prosthesis based on 3D printing |
-
2020
- 2020-06-29 CN CN202021228721.5U patent/CN212346821U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114028035A (en) * | 2020-06-29 | 2022-02-11 | 北京力达康科技有限公司 | Fibula prosthesis based on 3D printing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8647391B2 (en) | Malleolar replacement devices | |
| US8167952B2 (en) | Arthroplastic implant with shield for basilar joint and related methods | |
| CN212346821U (en) | Fibula prosthesis based on 3D printing | |
| CN114028035B (en) | Fibula prosthesis based on 3D printing | |
| CN109157309A (en) | Proximal tibia filling block prosthese | |
| CN214484742U (en) | Tibia straight/eccentric extension rod | |
| Huggler | The thrust plate prosthesis: a new experience in hip surgery | |
| CN214017997U (en) | Expansible prosthesis for reconstruction of cancellous bone | |
| CN113797000A (en) | Talus fusion surface type artificial ankle joint prosthesis | |
| CN113069248A (en) | Bone defect repair system for wrist joint | |
| CN208799372U (en) | A kind of four limbs large segmental bone defect titanium prosthesis of 3D printing | |
| Chillag | Radiohumeral arthrodesis for salvage of failed total elbow arthroplasty | |
| CN111938878A (en) | Tibia prosthesis | |
| US20210030547A1 (en) | Ceramic surface arthroplasty system | |
| CN208770072U (en) | A kind of artificial prosthesis of the adjustable overlapping connection structure in long bone backbone portion | |
| RU224986U1 (en) | DIAPHYSAL FEMORAL PLATE | |
| CN214017991U (en) | Spongy bone reconstruction porous ring-shaped prosthesis | |
| CN108498209B (en) | 3D printed titanium alloy prosthesis for bone defects of large limbs | |
| Hirsch | Clinical problems in total hip replacements | |
| RU207081U1 (en) | ELBOW JOINT ENDOPROTHESIS | |
| RU207061U1 (en) | ELBOW JOINT ENDOPROTHESIS | |
| CN216702728U (en) | Talus fusion surface type artificial ankle joint prosthesis | |
| CN216417432U (en) | Metacarpophalangeal joint surface replacement prosthesis | |
| CN219480471U (en) | Porous tantalum metal femoral prosthesis | |
| CN214805726U (en) | Bone defect repair system for wrist joint |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |