Title :
Multichannel multipurpose implantable nerve stimulators
Author :
Stoehr, Hans Georg ; Mayr, Winfrid ; Thoma, Herwig
Author_Institution :
Bioeng. Lab., 2nd Surg. Univ. Clinic, Vienna, Austria
Abstract :
On the basis of experiences gained in clinical applications of functional electrostimulation of nerves with implantable stimulation units, 20-channel implants fabricated in thick-film technology and using gate array circuits were developed. Extracorporal power supply and adjustment of stimulation parameters are accomplished by using a versatile microprocessor-based device that can be attached to the belt of the patient. The device (12×4×6 cm) can program and supply two implants. The supply unit consists of a CMOS microcomputer (80C51) with 32-kb EPROM (electrically programmable read-only memory), a 32-kB RAM (random access memory), an eight-channel ADC (analog-to-digital converter), a watchdog, a real-time clock, an acoustic signal, an eight-character display, and an RS232 link to communicate with a PC either directly or through a modem
Keywords :
biomedical electronics; computerised instrumentation; neurophysiology; orthotics; 32 kB; CMOS microcomputer; RS232 link; acoustic signal; analog-to-digital converter; electrically programmable read-only memory; extracorporal power supply; functional electrostimulation; gate array circuits; microprocessor-based device; multichannel multipurpose implantable nerve stimulators; random access memory; real-time clock; stimulation parameters adjustment; thick-film technology; watchdog; Belts; CMOS technology; Circuits; EPROM; Implants; Microcomputers; PROM; Power supplies; Random access memory; Read-write memory;
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.1989.96054
