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HIDE: a new hybrid environment for the design of custom-made hip prosthesis

Identifieur interne : 000428 ( Main/Exploration ); précédent : 000427; suivant : 000429

HIDE: a new hybrid environment for the design of custom-made hip prosthesis

Auteurs : Marco Viceconti [Italie] ; Debora Testi [Italie] ; Roberto Gori [Italie] ; Cinzia Zannoni [Italie] ; Angelo Cappello [Italie] ; Angelo De Lollis [Italie]

Source :

Computer Methods and Programs in Biomedicine [ 0169-2607 ] ; 2001.

RBID : ISTEX:37EA82F035C31EF21A2DAF1DBB92ABC33B6B9AF0

English descriptors

Abstract

Abstract: This technical note describes a new software environment (HIPCOM design environment, HIDE) for the design of custom-made total hip replacements. These devices are frequently designed using general-purpose mechanical computer-aided design (CAD) programs using a set of bone contours extracted from the computer tomography (CT) images as anatomical reference. On the contrary, the HIDE system was developed to let the operator directly design the stem shape onto the CT images in a single-step operation. The operator can directly import CT data in DICOM format or use special functions to reconvert to a digital stack, the CT images printed on a radiological film. Once the stack of CT images is loaded, the operator can design the implant shape by imposing control sections directly on the CT images. The interpolation of these control sections produces the basic 3D shape of the custom-made stem. The shape is then exported to the CAD–computer-aided manufacturing (CAM) program to refine the design and to generate the part program to manufacture the implant with a CNC tooling machine. Using HIDE, the duration of design steps it affected was reduced by more than 50% with respect to the standard method in use at the manufacturer site. HIDE also improved the accuracy and the repeatability of the whole procedure. The learning curve became flat after only ten cases. These good results were achieved because of the integration of the vectorial description of the prosthetic component with the raster description of the CT data that allowed the designer to use all details available in the CT images.

Url:

https://api.istex.fr/document/37EA82F035C31EF21A2DAF1DBB92ABC33B6B9AF0/fulltext/pdf

DOI: 10.1016/S0169-2607(00)00097-3

Affiliations:

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Le document en format XML

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<front><div type="abstract" xml:lang="en">Abstract: This technical note describes a new software environment (HIPCOM design environment, HIDE) for the design of custom-made total hip replacements. These devices are frequently designed using general-purpose mechanical computer-aided design (CAD) programs using a set of bone contours extracted from the computer tomography (CT) images as anatomical reference. On the contrary, the HIDE system was developed to let the operator directly design the stem shape onto the CT images in a single-step operation. The operator can directly import CT data in DICOM format or use special functions to reconvert to a digital stack, the CT images printed on a radiological film. Once the stack of CT images is loaded, the operator can design the implant shape by imposing control sections directly on the CT images. The interpolation of these control sections produces the basic 3D shape of the custom-made stem. The shape is then exported to the CAD–computer-aided manufacturing (CAM) program to refine the design and to generate the part program to manufacture the implant with a CNC tooling machine. Using HIDE, the duration of design steps it affected was reduced by more than 50% with respect to the standard method in use at the manufacturer site. HIDE also improved the accuracy and the repeatability of the whole procedure. The learning curve became flat after only ten cases. These good results were achieved because of the integration of the vectorial description of the prosthetic component with the raster description of the CT data that allowed the designer to use all details available in the CT images.</div>
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HIDE: a new hybrid environment for the design of custom-made hip prosthesis

HIDE: a new hybrid environment for the design of custom-made hip prosthesis

Source :

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri