A Total Artificial Heart (TAH) replaces the human heart both functionally and anatomically. Since the device is implanted permanently into a patient, the accurate fit of this device is an important challenge. Every patient’s anatomy is unique, yet because of the technical complexity and cost of such devices only a limited number of designs are economically feasible. This challenges device engineers to find a way to optimize their designs to treat the maximum number of patients. For virtual fitting of the Aachen TAH ReinHeart design A.J. Fritschi and his colleagues sought out the Mimics Innovation Suite software to create anatomical models from real patient data.
(Department of Cardiovascular Engineering, Institute of Applied Medical Engineering, Helmholtz Institute, RWTH-Aachen University,
Aachen, Germany; Department for the Surgical Therapy of End-Stage Heart Failure and Mechanical Circulatory Support, Heart and Vascular Centre Duisburg, Duisburg, Germany)
Fritschi et al. concluded that virtual fitting is an effective tool for device design and an economical solution for including a larger number of patients in the study. The authors caution, however, that conventional cadaver studies will still play an important role, as many key elements of surgery such as haptic feedback are not yet available in virtual studies.
Fritschi et al.: Image based evaluation of mediastinal constraints for the development of a pulsatile total artificial heart. BioMedical Engineering OnLine 2013 12:81. http://www.biomedical-engineering-online.com/content/12/1/81
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The Standard in ‘Engineering on AnatomyTM’
The Mimics Innovation Suite turns 3D image data into high-quality digital models. Starting from medical image data such as CT, MRI or 3D Ultrasound images, the Mimics Innovation Suite offers the most advanced image segmentation, the broadest anatomical measurement options, powerful CAD tools for Engineering on Anatomy and 3D Printing, and accurate model preparation for FEA and CFD. Fritschi et al. used the Mimics Innovation Suite to:
- Create accurate 3D heart models of 27 invididual CT scanse
- Investigate the anatomical design requirements to attain an optimal fit
- Perform a validation study