FIELD-APPLIED SYSTEM AND METHOD TO PRODUCE THERMITE WELDS

    公开(公告)号:US20230147307A1

    公开(公告)日:2023-05-11

    申请号:US17983005

    申请日:2022-11-08

    CPC classification number: B23K23/00

    Abstract: Methods and systems for producing a thermite weld include applying a first vibration and a second vibration to molten thermite material within a mold between a first piece and a second piece to be welded. The first vibration includes a first vibration frequency and a first amplitude, and the second vibration includes a second vibration frequency and a second amplitude. The first vibration and the second vibration are applied simultaneously to the molten thermite material until the molten thermite material cools below a liquid-to-solid transition temperature. Interference patterns and harmonics between the first vibration and the second vibration enhance the elimination of gas voids within the molten thermite material and enhance grain refinement in the molten thermite material of the resulting thermite weld without damaging the mold.

    DEVICES, SYSTEMS, AND METHODS FOR DIAGNOSING TREATING AND MONITORING CHRONIC PELVIC PAIN

    公开(公告)号:US20230053296A1

    公开(公告)日:2023-02-16

    申请号:US17973738

    申请日:2022-10-26

    Abstract: A system for determining a treatment regimen for chronic pelvic pain (CPP) includes an electromyography (EMG) probe including electrodes. Each electrode detects pelvic floor muscle activity. An EMG sensor array includes bipolar EMG sensors configured to detect muscle activity of muscles associated with or supporting the pelvic floor muscles. An EMG amplifier is in communication with the EMG probe or the EMG sensor array. The EMG amplifier includes a plurality of input channels. Each input channel receives data of muscle activity in the pelvic floor muscles or the muscles associated with or supporting the pelvic floor muscles from the EMG probe or the EMG sensor array. A processor of a computer performs muscle network analysis using the data of muscle activity in the pelvic floor muscles or the muscles associated with or supporting the pelvic floor muscles. A treatment regimen for CPP is recommended based on the muscle network analysis.

    DEVICES, SYSTEMS AND METHODS OF MAPPING NEUROMUSCULAR JUNCTIONS FOR BOTULINUM TOXIN INJECTIONS

    公开(公告)号:US20220395685A1

    公开(公告)日:2022-12-15

    申请号:US17838758

    申请日:2022-06-13

    Inventor: Yingchun Zhang

    Abstract: A system for mapping neuromuscular junctions for botulinum neurotoxin (BoNT) injections includes a stimulation electrode and an electromyography (EMG) sensor array including EMG sensors configured to be arranged about a person's face. Each EMG sensor detects muscle activity of a facial muscle of a facial muscle group. An EMG amplifier includes a plurality of input channels. Each input channel receives data of facial muscle activity in the facial muscle group from the EMG sensor array. A computer is in communication with the EMG amplifier. A processor of the computer identifies neuromuscular junctions (NMJs) of the facial muscle group based on the data of facial muscle activity received from the EMG sensor array. The plurality of NMJs are mapped with respect to the at least one facial muscle group of the body of the person. At least one NMJ site for BoNT injection is recommended by the computer.

    SYSTEM AND METHOD TO MEASURE TISSUE BIOMECHANICAL PROPERTIES WITHOUT EXTERNAL EXCITATION

    公开(公告)号:US20220386862A1

    公开(公告)日:2022-12-08

    申请号:US17882682

    申请日:2022-08-08

    Abstract: A system and method for measuring biomechanical properties of tissues without external excitation are capable of measuring and quantifying these parameters of tissues in situ and in vivo. The system and method preferably utilize a phase-sensitive optical coherence tomography (OCT) system for measuring the displacement caused by the intrinsic heartbeat. The method allows noninvasive and nondestructive quantification of tissue mechanical properties. Preferably, the method is used to detect tissue stiffness and to evaluate its stiffness due to intrinsic pulsatile motion from the heartbeat. This noninvasive method can evaluate the biomechanical properties of the tissues in vivo for detecting the onset and progression of degenerative or other diseases and evaluating the efficacy of therapies.

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