Abstract: Embodiments relate to devices, systems and methods of assisting blood flow return to the heart from a limb. The device comprising a wearable garment (115) and a compression apparatus (110) embedded in the garment (115) for applying an external compression according to a compression sequence to a muscle of a limb of a user based on real-time measurements regarding a cardiac cycle having a diastolic phase and systolic of the user and real-time measurements of muscle activity. The compression sequence is synchronized to comment when both the local blood flow at the limb is in the diastolic phase and the muscle is in a non-contracted state.

Abstract: The present disclosure provides systems and methods for calibrating for errors dependent upon spectral characteristics of tissue for a medical device by estimating a spectral characteristic of tissue providing error due to scattering or absorption of emitted light based upon operating the sensor in reflectance mode to generate a first SpO2 reading and estimating error due to spectral characteristics of skin therefrom, operating the sensor in transmissive mode to generate a second SpO2 reading, and applying a correction to a pulse oximetry transmissive mode measurement to correct for the error dependent upon the estimated spectral characteristic of tissue.

Abstract: The present disclosure provides systems and methods for correcting for errors dependent upon spectral characteristics of tissue for a medical device by estimating a spectral characteristic of tissue providing error due to scattering or absorption of emitted light based upon a ratio of measurements for a patient.

Abstract: Embodiments relate to devices, systems and methods of assisting blood flow return to the heart from a limb. The device comprising a wearable garment (115) and a compression apparatus (110) embedded in the garment (115) for applying an external compression according to a compression sequence to a muscle of a limb of a user based on real-time measurements regarding a cardiac cycle having a diastolic phase and systolic of the user and real-time measurements of muscle activity. The compression sequence is synchronized to comment when both the local blood flow at the limb is in the diastolic phase and the muscle is in a non-contracted state.

Abstract: Embodiments relate to devices, systems and methods of assisting blood flow return to the heart from a limb. The device comprising a wearable garment and a compression apparatus embedded in the garment for applying an external compression to a limb of a user and at least one of a processor or a controller configured to control the compression apparatus to apply the external compression, according to a compression sequence, to a muscle of the limb of the user based on real-time measurements regarding a cardiac cycle having a diastolic phase and systolic phase of the user and real-time measurements of muscle activity. The compression sequence is synchronized to commence when both a local blood flow at the limb is in the diastolic phase and the muscle is in a non-contracted state.

Abstract: Embodiments relate to devices, systems and methods of assisting blood flow return to the heart from a limb. The device comprising a wearable garment (115) and a compression apparatus (110) embedded in the garment (115) for applying an external compression according to a compression sequence to a muscle of a limb of a user based on real-time measurements regarding a cardiac cycle having a diastolic phase and systolic phase of the user and real-time measurements of muscle activity.