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Since the minimally invasive surgery has significant benefits for the patient, special equipment and techniques are constantly enhanced in this relatively new surgical field, so that more challenging surgical applications can be achieved. Thereby, the major aim is to enable the surgeon to manipulate instruments inside the human body intuitively, despite restricted access to the operating field and...
The middle ear is a sophisticated and complex structure with a variety of functions, yet a delicate organ prone to injuries due to various reasons. Both, understanding and reconstructing its functions has always been an important topic for researchers from medical and technical background. Currently, human temporal bones are generally used as model for tests, experiments and validation of the numerical...
The tympanoplasty-III is a widely used method to heal the conductive hearing loss with passive prostheses. One of the major challenges during this procedure is to determine the correct prosthesis length during the surgery, in order to apply an optimal tension on the tissues. However, a suboptimal tension on the tissues may occur because of a varying ambient pressure and tissue changes after the operation...
In this article, we present a new physical model for the surgical simulation of interventions in the middle ear and temporal bone. The goal of the work was to provide on one side a detailed and easy to use model for the training of stapes plastic surgeries and on the other side a realistic testing environment for a surgical robotic system formally presented of our group. The stapedotomy, a common...
The tympanoplasty-III is a widely used method to heal the conductive hearing loss by reconstructing the ossicular chain with passive middle ear prostheses. One of the major challenges during this procedure is to determine the correct prosthesis length intraoperatively, which specifies the tension on the tissues. A suboptimal tension on the tissues may decrease the sound conduction, cause prosthesis...
The middle ear is a sophisticated mechanism which transmits sound waves from the outer ear to the inner ear, while it amplifies and filters the sound waves depending on their frequency. However, the sound path can be broken due to traumas, infections, ossification or alteration. In this case, the surgeons reconstruct the sound path with an implant, mostly with passive titanium prostheses. Developers...
The Stapedotomy is a standard ENT (ear, nose and throat) surgery, where the surgeons use surgical micro hooks and forceps to replace the stapes with a small titanium implant. However, there are some challenges with this procedure. Especially, the non-ergonomic posture of the surgeon increases the hand tremor and leads to an inaccurate positioning of the implant. This may cause hearing loss and the...
Membrane peeling is a standard vitreoretinal procedure, where the surgeon delaminates a very thin membrane from retina surface using surgical picks and forceps. This requires extremely delicate manipulation of the retinal tissue. Applying excessive forces during the surgery can cause serious complications leading to vision loss. For successful membrane peeling, most of the applied forces need to be...
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