ORTHOPEDIC IMPLANT

Abstract

The present disclosure relates to an orthopedic implant, wherein the implant is a 3D printed part and comprises at least one first portion and at least one second portion, the first portion forming a support structure and the second portion being at least partially made of a biodegradable material.

The present disclosure further relates to a method of manufacturing an orthopedic implant.

Claims

1. An orthopedic implant, wherein the implant is a 3D printed part and comprises at least one first portion and at least one second portion, the first portion forming a support structure and the second portion being at least partially made of a biodegradable material.

2. The orthopedic implant according to claim 1, wherein the first, for instance outer, portion is at least partially made of PEEK and/or PEKK and/or PAEK and/or PEI and/or PPSU and/or PSU and/or PAI.

3. The orthopedic implant according to claim 1, wherein the second, for instance inner, portion is at least partially made of a biodegradable material, the biodegradable material being one of the following materials or material combinations: polydioxanone, polylactide, poly, a mixture of polylactide and poly.

4. The orthopedic implant according to claim 1, wherein the first portion and/or the second portion is/are formed to be porous at least in parts.

5. The orthopedic implant according to claim 1, wherein the implant is a 2-component cage.

6. A method of manufacturing an orthopedic implant, comprising at least the following steps: a first portion of the implant is produced by means of 3D printing, wherein the first portion forms a support structure of the implant; a second portion is produced by means of 3D printing, wherein the second portion is at least partially made of a biodegradable material.

7. The method according to claim 6, wherein the first portion and the second portion are joined by means of 3D printing.

8. The method according to claim 6, wherein the second portion is printed onto the first portion.

9. The method according to claim 6, wherein the first portion and the second portion are printed separately and are not joined by means of a printing method.

10. The method according to claim 6, wherein the orthopedic implant is an orthopedic implant.

11. The orthopedic implant according to claim 5, wherein the 2-component cage is a 2-component backbone cage.

12. The method of manufacturing an orthopedic implant according to claim 6, wherein the implant is produced by means of the FLM method.

Description

BRIEF DESCRIPTION OF THE FIGURES

[0036] Further advantages and details of the disclosure will now be explained with reference to an exemplary embodiment shown in more detail in the drawings in which:

[0037] FIG. 1 shows in a schematic view a cross-sectional drawing through a first exemplary embodiment of an orthopedic implant according to the disclosure;

[0038] FIG. 2 shows a further exemplary embodiment of an orthopedic implant according to the disclosure;

[0039] FIG. 3 shows a further exemplary embodiment of an orthopedic implant according to the disclosure; and

[0040] FIG. 4 shows a further exemplary embodiment of an orthopedic implant according to the disclosure.

DETAILED DESCRIPTION

[0041] FIG. 1 shows an exemplary embodiment, according to the disclosure, of an orthopedic implant 10.

[0042] Here, the orthopedic implant 10 is a 3D printed part.

[0043] In addition, the implant 10 has a first, outer portion 12 and a second, inner portion 14.

[0044] The first, outer portion 12 is designed as a support structure in the form of a hollow bone type element.

[0045] The second, inner portion 14 completely fills the cavity and is entirely made of biodegradable material.

[0046] The first, outer portion 12 consists entirely of PEEK.

[0047] It is conceivable that fiber-reinforced PEEK is also used.

[0048] The second, inner portion 14 is made of a biodegradable material here, namely polydioxanone (PDS).

[0049] In principle, however, it is conceivable that PLA, PLGA or a mixture of PLA and PLGA is used. However, it is also conceivable to use any other absorbable and printable synthetic material.

[0050] The inner portion 14 is of porous design.

[0051] The implant 10 is a so-called 2-component cage.

[0052] FIG. 2 shows a further exemplary embodiment of the present disclosure.

[0053] The exemplary embodiment according to FIG. 2 also relates to an orthopedic implant 110.

[0054] The orthopedic implant 110 has all structural and functional features as the implant 10 according to FIG. 1.

[0055] Identical features or comparable features are designated with the identical reference sign, but increased by the value 100.

[0056] In contrast to the orthopedic implant 10 according to FIG. 1, the orthopedic implant 110 is basically of identical structure, but has a completely round cross-section. A design of this type is useful in particular in connection with implant pieces for the replacement of tubular bones or the like.

[0057] FIG. 3 shows a further exemplary embodiment of an orthopedic implant according to the present disclosure.

[0058] Here, the orthopedic implant 210 is also structured in the same way as the orthopedic implant 10 according to FIG. 1, but the following differences exist.

[0059] Identical or comparable features, however, are designated by the same reference sign, but increased by the value 200.

[0060] Here, the first portion 212 is arranged in the interior of the implant 210. The second portion 214 is arranged in such a way that it completely surrounds the inner, first portion 212 on the outside.

[0061] Here too, the cross-section is circular or nearly circular.

[0062] FIG. 4 shows a further exemplary embodiment of an orthopedic implant 310 according to the disclosure.

[0063] The orthopedic implant 310 also has all the features of the orthopedic implant 10. Identical or comparable features are designated with the same reference sign, but increased by the value 300.

[0064] Here, the first portion 312 has several cavities in which multiple second portions 314 are provided.

[0065] The first portion 312 is of oval design.

[0066] The latter accommodates three second portions 314 with biodegradable material, wherein two smaller circular second portions 314 are provided at the oval's ends and a larger portion 314 with a circular cross-section is provided in the middle.

[0067] In principle, it is envisaged that the implant 10, 110, 210, 310 can be printed or manufactured as described above in 3D printing using patient data.

[0068] A first filament, e.g. a PEEK filament, is used for the first portion.

[0069] For the second portion, a filament of a biodegradable material is used. The use of any biodegradable materials is conceivable, in particular the use of PDS, PLA, PLGA or mixtures thereof.

[0070] The method according to the disclosure for manufacturing an orthopedic implant, which may be an implant 10, 110, 210, 310 as described above, can be described as follows:

[0071] First, a first portion of the implant 10, 110, 210, 310 is produced by means of 3D printing.

[0072] In this process, the first portion 12, 112, 212, 312 forms a/the support structure of the implant 10, 110, 210, 310.

[0073] In a further step, a second portion 14, 114, 214, 314 is then produced by means of 3D printing.

[0074] The second portion 14, 114, 214, 314 is at least partially made of biodegradable material.

[0075] In particular, the first portion 12, 112, 212, 312 and the second portion 14, 114, 214, 314 are joined by means of 3D printing.

[0076] For this purpose, in one possible embodiment of the method, the second portion 14, 114, 214, 314 is printed onto the first portion 12, 112, 212, 312.

[0077] As an alternative, provision can be made that the first portion 12, 112, 212, 312 and the second portion 14, 114, 214, 314 are printed separately and are not joined by means of a printing method.

REFERENCE SIGNS

[0078] 10 orthopedic implant [0079] 12 first, outer portion [0080] 14 second, inner portion [0081] 110 orthopedic implant [0082] 112 first, outer portion [0083] 114 second, inner portion [0084] 210 orthopedic implant [0085] 212 first portion [0086] 214 second portion [0087] 310 orthopedic implant [0088] 312 first, outer portion [0089] 314 second, inner portion