Implantable externally programmable microprocessor-controlled ti

Details Implantable externally programmable microprocessor-controlled ti Implantable externally programmable microprocessor-controlled ti

1980-10-09

1984-01-10

Kamm, William E.

Surgery

Truss

Pad

A61N 136

Patent

active

044248121

ABSTRACT:
A microprocessor-controlled implantable programmable stimulator includes a pulse generator external to the microprocessor for producing stimulation output pulses to multiple electrodes. A microprocessor implements a stored program data processing system which sets latches to establish pulse parameters. Externally transmitted parameter data is decoded by the processing system, confirmed by two-way telemetry and loaded into control registers. The microprocessor obtains corresponding stored values from parameter tables in a ROM, and then sets amplitude, rate and width latches. The pulse rate and width latches preset separate counters operated by respective slow and fast clocks. To conserve power, the fast clock is enabled only briefly each time the rate counter times out. When running, the fast clock replaces the slow clock input to the microprocessor. The timed-out signal from the rate counter generates an interrupt request which calls a subroutine to reprogram electrode polarity before enabling each output pulse. This system allows several electrodes to be alternately connected as anodes and cathodes. An internal machine cycle counting routine disables the interrupt capability during the off portion of a scheduled on/off cycle and programs the rate to a fixed minimum.

REFERENCES:
patent: 3311111 (1967-03-01), Bowers
patent: 3920024 (1975-11-01), Bowers
patent: 4126139 (1978-11-01), Walters et al.
patent: 4132233 (1979-01-01), Hartlaub
patent: 4208008 (1980-06-01), Smith

Affiliated with

Also associated with

Rating

Implantable externally programmable microprocessor-controlled ti does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Implantable externally programmable microprocessor-controlled ti, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Implantable externally programmable microprocessor-controlled ti will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-450114