Results 1 to 10 of about 7,435 (25)

Geometric Atlas of the Middle Ear and Paranasal Sinuses for Robotic Applications [PDF]

open access: yes, 2021
In otolaryngologic surgery, more and more robots are being studied to meet the clinical needs of operating rooms. However, to help design and optimize these robots, the workspace must be precisely defined taking into account patient variability. The aim of this work is to define a geometric atlas of the middle ear and paranasal sinuses for endoscopic ...
arxiv   +1 more source

An Implantable Piezofilm Middle Ear Microphone: Performance in Human Cadaveric Temporal Bones [PDF]

open access: yes, 2023
Purpose: One of the major reasons that totally implantable cochlear microphones are not readily available is the lack of good implantable microphones. An implantable microphone has the potential to provide a range of benefits over external microphones for cochlear implant users including the filtering ability of the outer ear, cosmetics, and usability ...
arxiv   +1 more source

Analysing Wideband Absorbance Immittance in Normal and Ears with Otitis Media with Effusion Using Machine Learning [PDF]

open access: yesarXiv, 2021
Wideband Absorbance Immittance (WAI) has been available for more than a decade, however its clinical use still faces the challenges of limited understanding and poor interpretation of WAI results. This study aimed to develop Machine Learning (ML) tools to identify the WAI absorbance characteristics across different frequency-pressure regions in the ...
arxiv  

Non-rigid Point Cloud Registration for Middle Ear Diagnostics with Endoscopic Optical Coherence Tomography [PDF]

open access: yesarXiv, 2023
Purpose: Middle ear infection is the most prevalent inflammatory disease, especially among the pediatric population. Current diagnostic methods are subjective and depend on visual cues from an otoscope, which is limited for otologists to identify pathology.
arxiv  

De novo topology optimization of Total Ossicular Replacement Prostheses [PDF]

open access: yesJournal of the Mechanical Behavior of Biomedical Materials, 2020, 103, 103541, 2020
Conductive hearing loss, due to middle ear pathologies or traumas, affects more than 5% of the population worldwide. Passive prostheses to replace the ossicular chain mainly rely on piston-like titanium and/or hydroxyapatite devices, which in the long term suffer from extrusion.
arxiv   +1 more source

Automatic laser steering for middle ear surgery [PDF]

open access: yesarXiv, 2022
This paper deals with the control of laser spot in the context of minimally invasive surgery of the middle ear, e.g., cholesteatoma removal. More precisely, our work is concerned with the exhaustive burring of residual infected cells after primary mechanical resection of the pathological tissues since the latter cannot guarantee the treatment of all ...
arxiv  

The physics of hearing: fluid mechanics and the active process of the inner ear [PDF]

open access: yesRep. Progr. Phys. 77:7 (2014), 2014
Most sounds of interest consist of complex, time-dependent admixtures of tones of diverse frequencies and variable amplitudes. To detect and process these signals, the ear employs a highly nonlinear, adaptive, real-time spectral analyzer: the cochlea.
arxiv   +1 more source

Safe Path following for Middle Ear Surgery [PDF]

open access: yesarXiv, 2023
This article formulates a generic representation of a path-following controller operating under contained motion, which was developed in the context of surgical robotics. It reports two types of constrained motion: i) Bilateral Constrained Motion, also called Remote Center Motion (RCM), and ii) Unilaterally Constrained Motion (UCM).
arxiv  

Waves on Reissner's membrane: a mechanism for the propagation of otoacoustic emissions from the cochlea [PDF]

open access: yesCell Reports 1, 374-384 (2012), 2012
Sound is detected and converted into electrical signals within the ear. The cochlea not only acts as a passive detector of sound, however, but can also produce tones itself. These otoacoustic emissions are a striking manifestation of the cochlea's mechanical active process.
arxiv   +1 more source

Cochlear-bone wave can yield a hearing sensation as well as otoacoustic emission [PDF]

open access: yes, 2014
A hearing sensation arises when the elastic basilar membrane inside the cochlea vibrates. The basilar membrane is typically set into motion through airborne sound that displaces the middle ear and induces a pressure difference across the membrane. A second, alternative pathway exists, however: stimulation of the cochlear bone vibrates the basilar ...
arxiv   +1 more source

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