NEUROPROSTHESES

&

ELECTRONIC INTEGRATION Jean-Louis DIVOUX

Laboratoires MXM

Sophia Antipolis - France

January 24, 2006

13es Rencontres INRIA– Industrie - Rocquencourt

MXM Last french Active Implantable Medical

Device (AIMD) manufacturer

NF EN ISO 13485 certified

EN 550 certified (e.o. sterilization activity)100% French S.M.E. Staff : 80 CF : 8,8 M€

A strong industrial experience in AIMD. A full knowledge from design to marketIn house key technologies expertise :

ASIC

Development

Manufacturing

Tests & controls

Sterilisation

MXM

AudiologyA full range of products to treat

profound hearing impairment

✔ Digisonic® Multi-Array ✔Digisonic® Convex

✔ Digisonic® SP’

✔ Digisonic® ABI

NeurostimulationMXM : rehabilitation of paraplegia by FES

Implantable Neuro-stimulateur

16 channels

12 epimysial electrodes (monopolar) 4 neural electrodes

(bipolar)

1st world implantation in Sept 99

2 patients

European project SUAW - Prof. Rabischong

DESIGNING A DEVICE

Physician

PathologyHandicap

Patient Industrial

Scientists

Device

Therapy Physiology

EnvironmentCompatibilities

DataeSpec'sRanges

Mfg

Surgery

MXM DIGISONIC CIS Implant

Ceramic caseElectronic ModuleElectrode Array

Increased surface of the electrode : Reduction of impedance (<2 KOhm) Reduction of charge density and of energy consumption

Recessed electrodes : Focussed stimulation Silicone “Soft” contact

Micro-relief effect

Implant : Twenty Electrode Array

l = 18 mm

∅ tip 380µm

NeurostimulationNew specific designs :

Cuff multipolar neural electrode Micro bipolar connector