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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