Manuela Eugster


Last Name

Eugster

First Name

Manuela

ORCID

0000-0002-0964-8220

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2017 - 201922020 - 20232
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Publications 1 - 4 of 4
  • Minimal invasives in-situ Bioprinting mittels schlauchbasiertem Materialtransport
    Item type: Journal Article
    Tomooka, Yukiko; Spothelfer, Dominic; Puiggali-Jou, Anna; et al. (2023)
    at - Automatisierungstechnik ~ Special Issue: Minimal-invasive Robotics
    Minimally invasive in situ bioprinting can potentially enhance the advantages of bioprinting, allowing the surrounding healthy tissue to be maximally preserved. However, the requirements for such a device are manifold and challenging to fulfill. We present an experimental bioprinting platform consisting of an extrusion system based on a tube mounted between an extrusion syringe and a dispensing nozzle. We investigated the influence of material transfer through a tube on the printing outcome. The results showed that it is feasible to form a continuous filament and print 3-dimensional structures using the developed platform.
  • Quantitative Evaluation of the Thickness of the Available Manipulation Volume Inside the Knee Joint Capsule for Minimally Invasive Robotic Unicondylar Knee Arthroplasty
    Item type: Journal Article
    Eugster, Manuela; Zoller, Esther; Krenn, Philipp; et al. (2021)
    IEEE Transactions on Biomedical Engineering
    Objective: Developing robotic tools that introduce substantial changes in the surgical workflow is challenging because quantitative requirements are missing. Experiments on cadavers can provide valuable information to derive workspace requirements, tool size, and surgical workflow. This work aimed to quantify the volume inside the knee joint available for manipulation of minimally invasive robotic surgical tools. In particular, we aim to develop a novel procedure for minimally invasive unicompartmental knee arthroplasty (UKA) using a robotic laser-cutting tool. Methods: Contrast solution was injected into nine cadaveric knees and CT scans were performed to evaluate the tool manipulation volume inside the knee joints. The volume and distribution of the contrast solution inside the knee joints were analyzed with respect to the femur, tibia, and the anatomical locations that need to be reached by a laser-cutting tool to perform bone resection for a standard UKA implant. Results: Quantitative information was determined about the tool manipulation volume inside these nine knee joints and its distribution around the cutting lines required for a standard implant. Conclusion: Based on the volume distribution, we could suggest a possible workflow for minimally invasive UKA, which provides a large manipulation volume, and deducted that for the proposed workflow, an instrument with a thickness of 5-8 mm should be feasible. Significance: We present quantitative information on the three-dimensional distribution of the maximally available volume inside the knee joint. Such quantitative information lays the basis for developing surgical tools that introduce substantial changes in the surgical workflow.
  • Contact Force Estimation for Minimally Invasive Robot-assisted Laser Osteotomy in the Human Knee
    Item type: Other Conference Item
    Eugster, Manuela; Zoller, Esther; Fasel, Lorin; et al. (2018)
    CRAS 2018 Proceedings of the 8th Joint Workshop on New Technologies for Computer/Robot Assisted Surgery
  • Positioning and stabilization of a minimally invasive laser osteotome
    Item type: Conference Paper
    Eugster, Manuela; Weber, Patrick; Cattin, Philippe C.; et al. (2017)
    Proceedings of The Hamlyn Symposium on Medical Robotics
Publications 1 - 4 of 4