| 1. |
- Cronskär, Marie, et al.
(författare)
-
Patient-Specific Clavicle Reconstruction Using Digital Design and Additive Manufacturing
- 2015
-
Ingår i: Journal of mechanical design (1990). - : ASME Press. - 1050-0472 .- 1528-9001. ; 137:11
-
Tidskriftsartikel (refereegranskat)abstract
- There is a trend toward operative treatment for certain types of clavicle fractures and these are usually treated with plate osteosynthesis. The subcutaneous location of the clavicle makes the plate fit important, but the clavicle has a complex shape, which varies greatly between individuals and hence standard plates often have a poor fit. Using computed tomography (CT) based design, the plate contour and screw positioning can be optimized to the actual case. A method for patient-specific plating using design based on CT-data, additive manufacturing (AM), and postprocessing was initially evaluated through three case studies, and the plate fit on the reduced fracture was tested during surgery (then replaced by commercial plates). In all three cases, the plates had an adequate fit on the reduced fracture. The time span from CT scan of the fracture to final implant was two days. An approach to achieve functional design and screw-hole positioning was initiated. These initial trials of patient-specific clavicle plating using AM indicate the potential for a smoother plate with optimized screw positioning. Further, the approach facilitates the surgeon's work and operating time can be saved.
|
|
| 2. |
- Koptyug, Andrey, 1956-, et al.
(författare)
-
Electron Beam Melting : Moving from Macro- to Micro- and Nanoscale
- 2012
-
Ingår i: Materials Science Forum. - Switzerland : Trans Tech Publications Inc.. ; , s. 532-537
-
Konferensbidrag (refereegranskat)abstract
- This paper presents some results achieved in the biomedical applications of the EBM® technology, and describes the resolved and unresolved challenges presented by modern medical implant manufacturing. In particular it outlines the issues related to the cellular structure design and metal surface modification. Moving to precision control of the metal surface at a microand sub-micrometer scale is a serious challenge to the EBM® processing, because it uses the powder with average grain size of about 0.04 to 0.1 mm. Though manufacturing of components with solidmesh geometry and porous surfaces using EBM® is quite possible, post- processing (for example chemical or electrochemical) is needed to achieve desired control of the surface at smaller scales to realize full potential of the technology for biomedical applications.
|
|
