US 11,896,827 B2
Microcurrent device and method for the treatment of visual disease
George D. O'Clock, Waconia, MN (US)
Assigned to MacuMira Medical Devices Inc., Calgary (CA)
Filed by MacuMira Medical Devices Inc., Calgary (CA)
Filed on Mar. 16, 2017, as Appl. No. 15/460,702.
Application 15/460,702 is a continuation of application No. 15/071,912, filed on Mar. 16, 2016, granted, now 11,007,367.
Prior Publication US 2017/0266446 A1, Sep. 21, 2017
This patent is subject to a terminal disclaimer.
Int. Cl. A61N 1/36 (2006.01); A61N 1/04 (2006.01)
CPC A61N 1/36046 (2013.01) [A61N 1/36014 (2013.01); A61N 1/36034 (2017.08); A61N 1/0408 (2013.01)] 30 Claims
OG exemplary drawing
 
16. A method for treatment of a visual disease, comprising:
providing a signal generator comprising a waveform controller connected to a waveform signal source, wherein the waveform controller is programmed to provide an output with a set of waveform parameters for a visual disease treatment protocol, wherein the waveform parameters include a pulse width and a pulse frequency that is varied to provide a plurality of levels of frequency content within a sequence of current pulses, wherein the waveform signal source is operable to provide a pulsed current output, and wherein the waveform controller is operable to provide the output so as to digitally control the waveform signal source so that the waveform signal source generates a waveform comprising the sequence of current pulses having the waveform parameters for the visual disease treatment protocol;
providing a current control and matching circuit to maintain safe current pulse levels;
placing at least one electrode in contact with tissue of an eye region, wherein the electrode is connected to the signal generator;
activating the signal generator to apply the waveform to the tissue via the electrode;
wherein the current pulse levels do not vary by more than plus or minus 10% for load impedance variations; and
wherein load impedance variations range from 5,000 ohms to 70,000 ohms.