Phototherapy system with dynamic drive for light-emitting diodes

    公开(公告)号:US11109458B2

    公开(公告)日:2021-08-31

    申请号:US16446862

    申请日:2019-06-20

    摘要: The LEDs in a phototherapy LED pad are controlled so that the intensity of the light varies in accordance with a sinusoidal function, thereby eliminating the harmonics that are generated when the LEDs are pulsed digitally. This is accomplished analogically by using a sinusoidal wave to control the gate of a MOSFET connected in series with the LEDs or by using a digital-to-analog converter to control the gate of the MOSFET with a stair step function representative of the values of a sinusoidal function at predetermined intervals. Alternatively, pulse-width modulation is used to control the gate of the MOSFET in such a way that the average current through the LEDs simulates a sinusoidal function. In additional to using a simple sine wave function, the LED current may also be controlled in accordance with “chords” containing multiple sine waves of different frequencies.

    Phototherapy Process Including Dynamic LED Driver With Programmable Waveform

    公开(公告)号:US20180146520A1

    公开(公告)日:2018-05-24

    申请号:US15857002

    申请日:2017-12-28

    IPC分类号: H05B33/08 A61N5/06

    摘要: A phototherapy or photobiomodulation process employing the application of electromagnetic radiation (EMR) to a living organism, typically a human being. The EMR is generated by one or more strings of LEDs and is programmed to emit one or more wavelengths, typically in the visible and infrared portions of the spectrum, the EMR in each wavelength being delivered in pulses having specified on-times, off-times, photoexcitation frequencies, duty factors, phase delays, and power amplitudes. A system for providing such EMR includes a microcontroller having a pattern library of algorithms, each of which defines a particular sequence of synthesized pulses, and an application pad, preferably flexible, containing the LED strings.

    Method Of Fabricating 3D Bendable Printed Circuit Board

    公开(公告)号:US20180343741A1

    公开(公告)日:2018-11-29

    申请号:US16055117

    申请日:2018-08-05

    摘要: A rigid-flex PCB includes an array of rigid PCB “islands” interconnected by a flexible PCB formed into flexible connectors. The conductive and insulating layers of the flexible PCB extend into the rigid PCBs, giving the electrical connections to the rigid PCBs added resistance to breakage as the rigid-flex PCB is repeatedly stressed by bending and twisting forces. In addition, the durability of the rigid-flex PCB is enhanced by making the power and signal lines driving the rigid PCBs redundant so that a breakage of a line will not necessarily affect the operation of the rigid PCB to which it is attached. The rigid-flex PCB is particularly applicable to light pads used in phototherapy, wherein LEDs mounted on the rigid-PCBs are powered and controlled through the redundant lines in the flexible PCB.

    Flexible LED Light Pad For Phototherapy
    6.
    发明申请

    公开(公告)号:US20180169431A1

    公开(公告)日:2018-06-21

    申请号:US15893666

    申请日:2018-02-11

    IPC分类号: A61N5/06

    摘要: In a flexible LED pad for use in phototherapy treatment of humans or animals, the PCBs in the pad are securely linked together with electrical connectors and ribbon cables to prevent the connections from being broken as the flexible pad is bent or otherwise deformed during the treatment. In one embodiment, low-profile socket connectors are mounted to the PCBs and mate with plug connectors at the ends of the ribbon cables. For similar reasons, the LED pad may be connected to an LED control unit by means of an electrical connector (e.g. a USB socket) mounted to a PCB in the LED pad. The PCBs, on which the LEDs are mounted, are fitted into a downset in the flexible pad to prevent the LEDs from becoming misaligned with openings in the flexible pad.

    Phototherapy process including dynamic LED driver with programmable waveform

    公开(公告)号:US11006488B2

    公开(公告)日:2021-05-11

    申请号:US15857002

    申请日:2017-12-28

    摘要: A phototherapy or photobiomodulation process employing the application of electromagnetic radiation (EMR) to a living organism, typically a human being. The EMR is generated by one or more strings of LEDs and is programmed to emit one or more wavelengths, typically in the visible and infrared portions of the spectrum, the EMR in each wavelength being delivered in pulses having specified on-times, off-times, photoexcitation frequencies, duty factors, phase delays, and power amplitudes. A system for providing such EMR includes a microcontroller having a pattern library of algorithms, each of which defines a particular sequence of synthesized pulses, and an application pad, preferably flexible, containing the LED strings.

    Distributed Photobiomodulation Therapy Devices And Methods, Biofeedback, And Communication Protocols Therefor

    公开(公告)号:US20190335551A1

    公开(公告)日:2019-10-31

    申请号:US16377192

    申请日:2019-04-06

    IPC分类号: H05B33/08 A61N5/06

    摘要: In a photobiomodulation therapy (PBT) process, defined patterns (e.g., sequences of square-wave pulses, sine waves, or combinations thereof) of electromagnetic radiation (EMR) having one or more wavelengths, or spectral bands of wavelengths, are introduced into a living organism (e.g. a human being or animal) using a distributed system comprising two or more distributed components or “nodes” communicating using a bus or transceiver to send instructions or files between or among the constituent components. The distributed PBT system prevents intentional usurpation of system control (hacking), thwarts unauthorized monitoring of data (surveillance), and reduces the likelihood and severity of accidental system malfunction arising from corrupted command and control packets or ambient EMI.