Implant | EPFL Graph Search

Êtes-vous un étudiant de l'EPFL à la recherche d'un projet de semestre?

Travaillez avec nous sur des projets en science des données et en visualisation, et déployez votre projet sous forme d'application sur GraphSearch.

Découvrez-en plus sur les applications Graph.

Un implant est un matériel introduit intentionnellement dans le corps d'un être vivant (animal, humain, éventuellement végétal). Types d’implants Implants médicaux Un implant médical est un dispositif médical implanté dans le corps du patient à des fins esthétiques ou thérapeutiques. Il peut s'agir d'un :

implant capillaire ;
implant cochléaire ;
implant contraceptif hormonal ;
implant dentaire ;
implant intraoculaire ;
implant mammaire ;
implant cardiaque ;
implant torique, mis à la place du cristallin ;
implant de la joue ;
implant fessier.

Divers

une micropuce implantée (humain) ;
une micropuce implantée animale ;
un implant de surveillance pour identifier ou localiser, avec puce GPS, le bétail, les prisonniers…
un « implant extraterrestre » (science-fiction).

Première Base de données de dispositifs, implants

Base de données internationale sur les dispositifs mé

À propos de ce résultat

Cette page est générée automatiquement et peut contenir des informations qui ne sont pas correctes, complètes, à jour ou pertinentes par rapport à votre recherche. Il en va de même pour toutes les autres pages de ce site. Veillez à vérifier les informations auprès des sources officielles de l'EPFL.

Publications associées

Chargement

Personnes associées

Chargement

Unités associées

Chargement

Concepts associés

Chargement

Cours associés

Chargement

Séances de cours associées

Chargement

Résumé

implant capillaire ;
implant cochléaire ;
implant contraceptif hormonal ;
implant dentaire ;
implant intraoculaire ;
implant mammaire ;
implant cardiaque ;
implant torique, mis à la place du cristallin ;
implant de la joue ;
implant fessier.

Divers

une micropuce implantée (humain) ;
une micropuce implantée animale ;
un implant de surveillance pour identifier ou localiser, avec puce GPS, le bétail, les prisonniers…
un « implant extraterrestre » (science-fiction).

Première Base de données de dispositifs, implants

Base de données internationale sur les dispositifs mé

Source officielle

À propos de ce résultat

Publications associées (28)

Publications associées

Chargement

Personnes associées (10)

Personnes associées

Chargement

Unités associées (7)

Unités associées

Chargement

Concepts associés (31)

Concepts associés

Chargement

Cours associés (10)

Cours associés

Chargement

Séances de cours associées (18)

Séances de cours associées

Chargement

Predrilled locking compression plate is more accurate than tension band wiring in restoring articular geometry of the ulnar greater sigmoid notch after olecranon Chevron osteotomy

Alexandre Terrier, Frédéric Vauclair

Introduction: The olecranon Chevron osteotomy (OCO) is commonly used to approach complex intraarticular fractures of the distal humerus. Predrilled tension band wiring (TBW) has historically been used to fix OCO. However, clinical outcomes are burdened by secondary loss of reduction and up to 21.3% non-union rates. The biomechanical stability of anatomic locking compression plate (LCP) was reported to be superior to TBW in olecranon fracture fixation. We hypothesised that this implant may also be superior to TBW in the anatomic reconstruction of the articular surfaces of the ulnar greater sigmoid notch after OCO by predrilling the holes of the angular stable plate with the threaded drill guide prior to osteotomy. Materials and methods: Lateral standardised and calibrated radiographs of twenty synthetic ulnar bones were obtained using a custom-made holder prior to preparation by a senior orthopaedic trauma surgeon. Ten specimens were then predrilled using the threaded drill bit guide of an olecranon LCP, while the other ten samples were predrilled with two 1.6 mm Kirschner wires. A distal "V" OCO was performed using a 0.6 mm oscillating saw. After repositioning and fixation with the corresponding device, lateral radiographs were repeated. Two independent observers used the TraumaCad planning software to document the articular geometry of the ulnar greater sigmoid notch pre- and postoperatively. The diameter of the best-fitting circle (diameter), the distance between the tip of the coronoid and the olecranon processes (distance) and the maximum articular depth were measured. Results: With the TBW technique, after OCO and fixation, all three postoperative measurements were significantly (p = 0.13). Inter and intra-observer measurement reliability was strong to very strong (intraclass correlation coefficients >= 0.793) for all three variables. Conclusion: Our study reveals that the predrilled LCP technique is more accurate than the predrilled TBW in restoring the anatomic articular geometry of the ulnar greater sigmoid notch after OCO. (C) 2020 Elsevier Ltd. All rights reserved.

ELSEVIER SCI LTD2020

Chargement

Fabrication and Packaging of a Fully Implantable Biosensor Array

Camilla Baj-Rossi, Sandro Carrara, Daniele Casarino, Giovanni De Micheli, Catherine Dehollain, Seyedeh Sara Ghoreishizadeh, Enver Gürhan Kilinç

In this work, we showed the realization of a fully- implantable device that integrates a microfabricated sensing platform, a coil for power and data transmission and integrated circuits. We described a device intended to test the biocompati- bility of the materials used for the microfabrication. Therefore, electronics measurements for data communication and remote powering will be reported in another article [1]. To ensure biocompatibility an epoxy enhanced polyurethane membrane was used to cover the device. We proved through an in-vitro characterization that the membrane was capable to retain enzyme activity up to 35 days. After 30 days of implant in mice, in-vivo experiments proved that the membrane promotes the integration of the sensor with the surrounding tissue, as demonstrated by the low inflammation level at the implant site

2013

Chargement

Full Fabrication and Packaging of an Implantable Multi-panel Device for Monitoring of Metabolites in Small Animals

Camilla Baj-Rossi, Sandro Carrara, Daniele Casarino, Giovanni De Micheli, Catherine Dehollain, Seyedeh Sara Ghoreishizadeh, Enver Gürhan Kilinç

In this work, we show the realization of a fully-implantable device for monitoring free-moving small animals. The device integrates a microfabricated sensing platform, a coil for power and data transmission and two custom designed integrated circuits. The device is intended to be implanted in mice, free to move in a cage, to monitor the concentration of metabolites. We show the system level design of each block of the device, and we present the fabrication of the passive sensing platform and its employment for the electrochemical detection of endogenous and exogenous metabolites. Moreover, we describe the assembly of the device to test the biocompatibility of the materials used for the microfabrication. To ensure biocompatibility, an epoxy enhanced polyurethane membrane was used to cover the device. We proved through an in-vitro characterization that the membrane was capable to retain enzyme activity up to 35 days. After 30 days of implant in mice, in-vivo experiments proved that the membrane promotes the integration of the sensor with the surrounding tissue, as demonstrated by the low inflammation level at the implant site.

Ieee-Inst Electrical Electronics Engineers Inc2014

Chargement

MSE-485: Tribology

This introductory course in tribology (science of friction, lubrication and wear) has specific goals : to present the basic principles of tribology, to develop the attitude to analyse tribological and to illustrate correlations between materials and tribological properties.

EE-519: Bioelectronics and biomedical microelectronics

The course covers the fundaments of bioelectronics and integrated microelectronics for biomedical and implantable systems. Issues and trade-offs at the circuit and systems levels of invasive microelectronic systems as well as their eluding designs, methods and classical implementations are discussed

BIOENG-448: Fundamentals of neuroengineering

Neuroengineering is at the frontier between neuroscience and engineering: understanding how the brain works allows developing engineering applications and therapies of high impact, while the design of new measurement and data analysis techniques contributes to advance our knowledge about the brain.

Dispositif médical

Un dispositif médical (DM), ou instrument médical au Canada, est une catégorie réglementaire de produits de santé dont les frontières sont différentes selon les pays. À ce titre, il est difficile d’

Stimulateur cardiaque

vignette|Un stimulateur cardiaque. Le stimulateur cardiaque, ou pacemaker, ou pile cardiaque, est un dispositif implanté dans l’organisme fournissant des impulsions électriques destinées à stimuler l

Titane

Le titane est l'élément chimique de numéro atomique 22, de symbole Ti. La variante titanium, bien qu'attestée en français depuis 1872, est considérée comme un anglicisme incorrect. Le titane appart