CN111759542A - Fibula prosthesis based on 3D printing - Google Patents

Fibula prosthesis based on 3D printing Download PDF

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Publication number
CN111759542A
CN111759542A CN202010606493.9A CN202010606493A CN111759542A CN 111759542 A CN111759542 A CN 111759542A CN 202010606493 A CN202010606493 A CN 202010606493A CN 111759542 A CN111759542 A CN 111759542A
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China
Prior art keywords
fibula
prosthesis
printing
main body
small head
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CN202010606493.9A
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Chinese (zh)
Inventor
郝改平
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Beijing Lidakang Technology Co Ltd
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Beijing Lidakang Technology Co Ltd
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Priority to CN202010606493.9A priority Critical patent/CN111759542A/en
Priority to CN202111402154.XA priority patent/CN114028035B/en
Publication of CN111759542A publication Critical patent/CN111759542A/en
Withdrawn legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/28—Bones
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/3094—Designing or manufacturing processes
    • A61F2/30942—Designing or manufacturing processes for designing or making customized prostheses, e.g. using templates, CT or NMR scans, finite-element analysis or CAD-CAM techniques
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/28—Bones
    • A61F2002/2835—Bone graft implants for filling a bony defect or an endoprosthesis cavity, e.g. by synthetic material or biological material
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30772—Apertures or holes, e.g. of circular cross section
    • A61F2002/30784—Plurality of holes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/3094—Designing or manufacturing processes
    • A61F2002/30985—Designing or manufacturing processes using three dimensional printing [3DP]

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Transplantation (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Prostheses (AREA)

Abstract

The invention provides a fibula prosthesis based on 3D printing, which comprises a prosthesis main body obtained by profiling design, wherein the prosthesis main body is integrally formed by 3D printing and is connected with a fibula. 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

Fibula prosthesis based on 3D printing
Technical Field
The invention relates to the technical field of medical instruments, in particular to a fibula prosthesis based on 3D printing.
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.
Disclosure of Invention
The invention provides a fibula prosthesis based on 3D printing. 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.
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 scheme of the invention at least comprises the following beneficial effects:
according to the technical scheme, the fibula prosthesis based on 3D printing can be used for treating fibula injuries, and is convenient to install, simple to operate, short in treatment period and good in 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 invention;
fig. 2 is a schematic structural diagram of a fibula prosthesis based on 3D printing according to a second embodiment of the 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. The prosthesis main body 14 is provided with prosthesis contact surface grids 11 and prosthesis intramedullary nails 12 extending outwards at two ends, 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 fibula 3, the prosthesis contact surface grids 11 at two ends of the fibula 3 are respectively and correspondingly contacted with fibula 3 opposite to the inner sides of the fibula 3 to cut bones, so that the fibula prosthesis 1 is connected with the fibula 3, and the prosthesis main body 14 replaces the middle section of the fibula 3 to be connected with the fibula 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.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

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.
CN202010606493.9A 2020-06-29 2020-06-29 Fibula prosthesis based on 3D printing Withdrawn CN111759542A (en)

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CN202111402154.XA CN114028035B (en) 2020-06-29 2020-06-29 Fibula prosthesis based on 3D printing

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US20090105840A1 (en) * 2007-10-18 2009-04-23 Inbone Technologies, Inc. Fibular stiffener and bony defect replacer
WO2012006434A1 (en) * 2010-07-07 2012-01-12 Global Orthopaedic Solutions Llc Malleolar replacement devices
CN109106476A (en) * 2018-09-13 2019-01-01 四川大学华西医院 Distal tibial prosthesis
CN110215316A (en) * 2019-06-12 2019-09-10 广州赛隆增材制造有限责任公司 A kind of customization porous tantalum fibula prosthese
CN210644251U (en) * 2019-07-01 2020-06-02 中国人民解放军第四军医大学 A tubular porous titanium alloy prosthesis of 3D printing for big section bone defect of four limbs
CN110893129A (en) * 2019-12-25 2020-03-20 中国人民解放军第四军医大学 Individualized artificial prosthesis of radius distal end
CN212346821U (en) * 2020-06-29 2021-01-15 北京力达康科技有限公司 Fibula prosthesis based on 3D printing

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