Title :
A new prosthetic device for full bladder control
Author :
Sawan, M. ; Hassouna, M. ; Duval, F. ; Elhilali, M.M. ; Mouine, J. ; Pourmehdi, S. ; Lachance, J. ; Genest, M. ; Leclair, M.
Author_Institution :
Dept. of Electr. Eng., Sherbrooke Univ., Que., Canada
Abstract :
The design and testing of a versatile, implantable eight-channel urinary prothesis developed to restore a normal bladder function for patients with spinal-cord injuries are described. The main application of the device is the stimulation of particular nerves in the sacral roots. The intensity, the format and the timing of the current pulses available at the channel outputs are easily programmable. Those parameters are received transdermally by the implanted device in 13-bit blocks. The information is either loaded into internal registers for immediate processing or stored in an external implantable memory for a deferred processing. A miniaturized (4.51 mm×4.51 mm) implant has been implemented in 3-μm CMOS full-custom technology, using a total of 12753 transistors. Tests have confirmed the functionality of the chip
Keywords :
biomedical electronics; prosthetics; CMOS full-custom technology; deferred processing; external implantable memory; full bladder control; implantable 8-channel urinary prosthesis; nerve stimulation; prosthetic device; sacral roots; spinal-cord injured patients; transistors; Biology; Bladder; CMOS technology; Decoding; Error correction; Prosthetics; Registers; Societies; Testing; Transmitters;
Conference_Titel :
Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in
Conference_Location :
Seattle, WA
DOI :
10.1109/IEMBS.1989.96419
