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US 11,388,799 B2Granted
Distributed photobiomodulation therapy system and method
AssigneeApplied BioPhotonics Ltd.
InventorsRichard K. Williams, Keng-Hung Lin, Laura E. Williams
Life of this patent
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Abstract
A phototherapy system includes a channel driver, a first microcontroller and a pad comprising a string of light-emitting diodes (LEDs). The pad also comprises a second microcontroller that autonomously controls the string of LEDs such that the LEDs are controlled even if communication between the first microcontroller and the pad is interrupted.
Claims16
A distributed photobiomodulation therapy (PBT) system comprising:
- a PBT controller, the PBT controller comprising a main microcontroller, a communication interface, and a digital clock;
- a light-emitting diode (LED) pad, the LED pad comprising:
- a pad microcontroller,
- a memory, the memory comprising a non-volatile memory,
- an array of light-emitting diodes (LEDs), the array of LEDs comprising one or more LED strings, the LEDs in each of the LED strings being connected in series,
- one or more LED drivers, each of the one or more LED drivers being linked to the pad microcontroller and also being connected to and for controlling a current in one of the LED strings, such that the pad microcontroller is capable of controlling a current in each LED string in the one or more LED strings, and
- a pad identity data register, the pad identity data register being stored in the non-volatile memory and comprising data for use by the PBT controller for authenticating the identity of the LED pad;
- and
- a communication link for carrying digital data between the PBT controller and the LED pad for controlling the current in and illumination of the one or more LED strings,
- wherein each of the one or more LED drivers comprises a MOSFET and a current sense and control element, each of the MOSFET and the current sense and control unit being connected in series with the LEDs in the LED string to which the LED driver is connected, the current sense and control unit being connected to a source of enable pulses for turning the MOSFET on and off and to a source of a reference current for controlling a level of the current in the MOSFET when the MOSFET is turned on.
7 more elements
A distributed photobiomodulation therapy (PBT) system comprising:
- a PBT controller, the PBT controller comprising a main microcontroller, a communication interface, and a digital clock;
- a light-emitting diode (LED) pad, the LED pad comprising:
- a pad microcontroller,
- a memory, the memory comprising a non-volatile memory,
- an array of light-emitting diodes (LEDs), the array of LEDs comprising one or more LED strings, the LEDs in each of the LED strings being connected in series,
- one or more LED drivers, each of the one or more LED drivers being linked to the pad microcontroller and also being connected to and for controlling a current in one of the LED strings, such that the pad microcontroller is capable of controlling a current in each LED string in the one or more LED strings, and
- a pad identity data register, the pad identity data register being stored in the non-volatile memory and comprising data for use by the PBT controller for authenticating the identity of the LED pad;
- and
- a communication link for carrying digital data between the PBT controller and the LED pad for controlling the current in and illumination of the one or more LED strings,
- wherein the array of LEDs comprises a first LED string and a second LED string and wherein a source of a reference current for the first LED string comprises a first reference MOSFET and a source of a reference current for the second LED string comprises a second reference MOSFET, each of the first and second reference MOSFETs being connected in a current mirror arrangement with a third threshold-connected MOSFET.
7 more elements
A method of performing photobiomodulation therapy (PBT) using a PBT system, the PBT system comprising:
- a PBT controller, the PBT controller comprising a main microcontroller, a communication interface, and a digital clock;
- a light-emitting diode (LED) pad, the LED pad comprising:
- a pad microcontroller,
- a memory, the memory comprising a non-volatile memory,
- an array of light-emitting diodes (LEDs), the array of LEDs comprising one or more LED strings, the LEDs in each of the LED strings being connected in series,
- one or more LED drivers, each of the one or more LED drivers being connected to and for controlling a current in one of the LED strings, and
- a pad identity data register, the pad identity data register being stored in the non-volatile memory and comprising data for use by the PBT controller for authenticating the identity of the LED pad;
- and
- a communication link for carrying digital data between the PBT controller and the LED pad for controlling the current in and illumination of the one or more LED strings;
- the method comprising transferring a file containing executable code from the PBT controller to the LED pad, the executable code comprising instructions for the pad microcontroller to execute and complete a PBT treatment without further instruction from the PBT controller, wherein the file containing executable code transferred from the PBT controller to the LED pad is compressed and/or encrypted, the method further comprising decompressing and/or decrypting the file in the LED pad.
7 more elements
A method of performing photobiomodulation therapy (PBT) using a PBT system, the PBT system comprising:
- a PBT controller, the PBT controller comprising a main microcontroller, a communication interface, and a digital clock;
- a light-emitting diode (LED) pad, the LED pad comprising:
- a pad microcontroller,
- a memory, the memory comprising a non-volatile memory,
- an array of light-emitting diodes (LEDs), the array of LEDs comprising one or more LED strings, the LEDs in each of the LED strings being connected in series,
- one or more LED drivers, each of the one or more LED drivers being connected to and for controlling a current in one of the LED strings, and
- a pad identity data register, the pad identity data register being stored in the non-volatile memory and comprising data for use by the PBT controller for authenticating the identity of the LED pad;
- and
- a communication link for carrying digital data between the PBT controller and the LED pad for controlling the current in and illumination of the one or more LED strings;
- the method comprising transferring a file comprising an LED player from the PBT controller to the LED pad, the LED player comprising an LED driver file.
7 more elements
Dependencies are inferred from the claim text.