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3-d printing of porous implants

A 3D printing and implant technology, applied in 3D printing, bone implants, spinal implants, etc., can solve the problems of weak ability and difficult to fit the implant site

Active Publication Date: 2018-11-02
WARSAW ORTHOPEDIC INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Typically, the resulting implant, whether monolithic or granular and in a carrier, is substantially solid when implanted and thus may not readily conform to the implant site
In addition, implants are essentially complete when implanted, and thus have less ability to be customized by, for example, adding or subtracting autograft material
[0009] Conventional 3D printing methods cannot fabricate porous implants by controlling the amount of porogens added to the implant during fabrication to create the desired macropores, micropores and / or nanopores in the implant, These macropores, micropores and / or nanopores facilitate the inflow and outflow of cells to repair damaged tissue

Method used

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  • 3-d printing of porous implants
  • 3-d printing of porous implants
  • 3-d printing of porous implants

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Embodiment Construction

[0031] definition

[0032]For the purposes of this specification and the appended claims, unless otherwise indicated, all figures expressing amounts of ingredients, percentages or ratios of materials, reaction conditions and other numerical values ​​used in this specification and claims are to be understood as is modified in all cases by the term "about". Similarly, when values ​​are expressed as approximations, by use of the antecedent "about," it will be understood that the particular value forms another embodiment of + / - 10% of the stated value. Accordingly, unless indicated to the contrary, the numerical parameters set forth in the following specification and appended claims are approximations that may vary depending upon the desired properties sought to be obtained by the present disclosure. At the very least, and not as an attempt to limit the application of the doctrine of equivalents to the scope of the claims, each numerical parameter should at least be construed in ...

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Abstract

Computer implemented methods of producing a porous implant are provided including obtaining a 3D image of an intended tissue repair site; generating a 3D digital model of the porous implant based on the 3D image of the intended tissue repair site. The method also includes determining an implant material and an amount of a porogen to add to an implant material to obtain a desired porosity of the porous implant. The desired porosity is based on a combination of macropores, micropores and / or nanopores structures. The 3D digital model developed is stored on a database coupled to a processor, wherein the processor has instructions for combining the implant material with the porogen based on the stored 3D digital model and for instructing a 3D printer to produce the porous implant. A layered 3Dprinted porous implant prepared by the computer implemented method is also provided.

Description

Background technique [0001] Three-dimensional (3D) printing is an additive printing process used to make three-dimensional solids from digital models. 3D printing technology is considered an additive process because it involves the application of successive layers of material. [0002] 3D printing technology is used in various industries for manufacturing and planning. For example, the automotive, aerospace and consumer goods industries use 3D printing to prototype parts and products. 3D printing is also being used in the construction industry to print structural models. The use of 3D printing in private and government defense is also growing rapidly. [0003] 3D printing is having a significant impact in the medical field. Medical applications are for making dental implants and prostheses. 3D printing is also being used to create drug delivery devices that can be used in direct therapy. A variety of drug delivery devices can be created that achieve customizable drug rel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C64/20B29C64/393B29C64/112B33Y10/00B33Y30/00B33Y50/02
CPCB33Y10/00B33Y30/00B33Y50/02B29C64/112B29C64/20B29C64/393B33Y70/10A61F2/28B33Y70/00A61F2/2846A61F2/30942A61F2/4455A61F2002/30062A61F2002/30588A61F2002/30677A61F2002/30948A61F2002/30952A61F2002/30962A61F2002/3097A61F2002/30971A61F2002/30985A61F2310/00041B29C64/106B29C64/386A61F2002/2835A61F2310/00359B33Y50/00B33Y80/00B29C64/241A61F2002/2817A61F2002/0081B29L2031/7532B29K2995/006
Inventor G·韦
Owner WARSAW ORTHOPEDIC INC
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