CSEM : The first dexterous and sentient hand prosthesis has been successfully implanted


CSEM Neuchâtel hand prothesis

In a pioneering surgery,  titanium  implants  were  placed  in  the  two  forearm  bones  (radius  and  ulnar),  from  which electrodes  to  nerves  and  muscles were  extended  to  extract  signals  to  control  a  robotic  hand  and  to  provide  tactile  sensations.  This  makes  it  the  first  clinically  viable,  dexterous  and  sentient  prosthetic  hand usable in real life. The breakthrough is part of the European project DeTOP.


As part of the DeTOP consortium, CSEM developed a low-power integrated circuit which enables two key functions: control of the prosthetic hand and collection of sensory feedback. The main challenge was to develop  an  implantable  circuit,  therefore  highly  miniaturized  and  low  energy,  while  still  providing  the  demanding  processing  performances  required  by  the  prosthetic  application. Capitalizing  on  CSEM's  pioneering work in miniaturized low-power consumption electronics, the circuit is based on its icyflex2 processor  and  icyTRX  radio transceiver.  In  addition,  an  optimized  integrated  analog  front  end  was  developed  for  the  sensor  interface.  The  circuit  supports  a  real-time  communication  protocol,  also  designed by CSEM, which frees the control unit of cabling.

The  DeTOP  project  pushes  boundaries  by  clinically  implementing  robotic,  sensing  and  long-term interfacing  technologies  and  we  are  pleased  to  have  been  able  to  contribute  core  technology  for  this  next-generation  digital  health  device  which  is  destined  to  transform  the  lives  of  amputees  around  the  world,


says Stéphane Emery, Head of System-on-Chip at CSEM.

Link to the CSEM Press Release