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Endovascular coiling, if possible, is the preferred surgical treatment for cerebral aneurysms as it is minimal invasive. The use of endovascular coiling is limited by the accessibility to the cerebrovascular system by catheter. This study investigated the feasibility of a single electromagnetic coil pair system to control a microrobot in vascular phantoms to eventually increase the potential treatment...
Microrobots can travel in blood flow to targets that are currently difficult to reach. Stationary control is a prerequisite and requires the prediction of major influencing forces. During experiments, a magnetic cylindrical microrobot was moved in a tube filled with water or a glucose mixture (blood analog), controlled by an external electromagnetic field. The experimental results showed that the...
In this paper we present the Virtual Habitat (V-HAB) model, which simulates on a system level the dynamics of entire mission scenarios for any given life support system (LSS) including a dynamic representation of the crew. We first present the V-HAB architecture. Thereafter we validate in selected case studies the V-HAB submodules. Finally, we demonstrate the overall abilities of V-HAB by first simulating...
The field of medical microrobotics is rapidly progressing; however, it is particularly challenging to control microrobots inside blood vessels. In this paper, the magnetic propulsion of a microrobot in pulsating flow is investigated. Regarding this task, the advantages of a reduced blood flow velocity are examined. The required magnetic field gradient in relation to the size of the microrobot is theoretically...
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