Publicações científicas

Atraumatic surgical approach to the cochlea with a micromanipulator

Manuel J. Manrique (a), Joan Savall (b), Francisco Javier Cervera-Paz [ES] (a), Jorge Rey (a), Carolina Der (a), Mikel Echeverria (b), Mikel Ares (b)
(a) Department of Otorhinolaryngology, Head & Neck Surgery, Clinica Universitaria, University of Navarra, Pamplona
(b) CEIT and Tecnun, University of Navarra, San Sebastiaacuten, Spain

Revisão:Acta Oto-Laryngologica

Data: 1/Fev/2007

Otorrinolaringologia

PURPOSE
Our design and preliminary results show that the the micromanipulator could be a great help to the surgeon in the atraumatic surgical approach to the lateral wall of the cochlea at the promontory.

OBJECTIVES
Hearing preservation in cochlear implant opens new frontiers in the treatment of sensorineural hearing loss. To preserve the membranous labyrinth intact, new surgical tools are needed, either for cochlear implantation or for other applications. The objectives of this study were to design and test a micromanipulator coupled to a drilling tool for the atraumatic exposure of the spiral ligament. The micromanipulator is designed to increase precision when drilling the otic capsule bone.

MATERIALS AND METHODS
A group from the University of Navarra worked on the device design -- based on a compliant mechanism -- and in vitro test. The components and functioning of the micromanipulator are described. It was tested in 10 formalinized temporal bones after a mastoidectomy, a posterior tympanotomy, and a transcanal tympanotomy were performed. The micromanipulator was placed over the cranial surface, and used to expose the endostium, anteriorly to the round window niche.

RESULTS
A combined approach through the external auditory canal was feasible, together with a posterior tympanotomy to visually control the work and make complementary manoeuvres. Drilling was easy, and visual control through the posterior tympanotomy was excellent. A high degree of drilling precision was achieved. A little disruption of the membranous labyrinth was found only in the first bone of the series.

CITAÇÃO DO ARTIGO  Acta Otolaryngol. 2007 Feb;127(2):122-31

talvezlhe interesse

QUE TECNOLOGIA UTILIZAMOS? 

A Clínica é o hospital privado com maiores recursos tecnológicos de Espanha, tudo num único centro.

Imagen de un PET, tecnología de vanguardia en la Clínica Universidad de Navarra

OS NOSSOS
PROFISSIONAIS

Os profissionais da Clínica realizam um trabalho contínuo de investigação e formação, sempre em benefício do paciente.

Imagen profesionales de la Clínica Universidad de Navarra

RAZÕES PARA VIR
À CLÍNICA

Conheça porque é que somos diferentes em relação a outros centros sanitários. Qualidade, rapidez, comodidade e resultados.

Imagen del edificio de la Clínica Universidad de Navarra