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Titanium 3D printing for heart pumps
The goal is to use 3D printed titanium parts in next generation heart pumps. This requires understanding of the effect of 3D printed surfaces on blood damage.
While significant technical progress has been made with current blood pumps, patients still experience high complication rates. Additive manufacturing of titanium by selective laser melting enables the development of more complex and integrated designs for next-generation devices. However, it is unclear wether the surface quality of AM parts is sufficient to provide the required low blood trauma. In this project printed parts are systematically characterized with respect to blood compatibility.
While significant technical progress has been made with current blood pumps, patients still experience high complication rates. Additive manufacturing of titanium by selective laser melting enables the development of more complex and integrated designs for next-generation devices. However, it is unclear wether the surface quality of AM parts is sufficient to provide the required low blood trauma. In this project printed parts are systematically characterized with respect to blood compatibility.
1) Literature research on hemocompatibility of different surface topographies.
2) Build shear stressor and define testing protocolls
3) 3D printing, post-processing and surface characterization of test specimens
4) Perform testing with animal blood from local slaughterhouse
Optional, dependent on interest and expertise:
- Computation Fluid Dynamics simulations of shear stressor and measured
1) Literature research on hemocompatibility of different surface topographies. 2) Build shear stressor and define testing protocolls 3) 3D printing, post-processing and surface characterization of test specimens 4) Perform testing with animal blood from local slaughterhouse
Optional, dependent on interest and expertise: - Computation Fluid Dynamics simulations of shear stressor and measured
- interested in biomedical engineering - familiar with designing in CAD - prior experience working in laboratories (not obligatory) - passionate about creating and testing physical prototypes - able to acquaint oneself independently with new topics and theories
Your tasks can be adapted depending on your interest and expertise.
The chair of Product Development and Engineering Design at the
ETH Zurich considers itself a cen- ter for system-oriented product development and innovation. Our aspiration consists on the one hand of the advancement and investiga- tion of methods and processes of product development and on the other hand of the development of new technical systems. The pur- pose of our daily work is to cont- ribute to the innovative ability and competitiveness of Switzerland.
The chair of Product Development and Engineering Design at the ETH Zurich considers itself a cen- ter for system-oriented product development and innovation. Our aspiration consists on the one hand of the advancement and investiga- tion of methods and processes of product development and on the other hand of the development of new technical systems. The pur- pose of our daily work is to cont- ribute to the innovative ability and competitiveness of Switzerland.
- Investigating blood compatibility of 3D printed titanium parts - 3D printing of specimens, testing in laboratory with animal blood - Earliest start mid Nov/Dec 2019
pd|z - www.pdz.ethz.ch
Kai v. Petersdorff-Campen
CLA G 19.2
Tannenstrasse 3, 8092 Zurich
kaiv@ethz.ch
pd|z - www.pdz.ethz.ch Kai v. Petersdorff-Campen CLA G 19.2 Tannenstrasse 3, 8092 Zurich kaiv@ethz.ch