Abstract: The disclosed system relates to the diagnosis and correction of autonomic nervous system imbalance through the recognition and improvement of parasympathetic tone of a user using paced breathing and vibratory neuromodulation. The system includes a wearable IBI detector, software for analyzing PSD data and determining recommended therapy, a vibratory stimulator, and optional smart phone guidance. The IBI detector reads the pulsatile waveform to produce IBI data that is used to compute PSD data. The PSD data is analyzed for ANS imbalance indicators and therapy is recommended based on continuously updated information stored in a database. Results from application of recommended therapy are stored and shared and can be used to build a personalized training regime to strengthen parasympathetic tone.

Abstract: A system for detecting dehydration, hemorrhaging, and increases in blood volume comprising monitors the time difference between the arrival of the primary left ventricular ejection pulse (pulse T1) and the arrival of the iliac reflection (pulse T3) to determine an arterial pulse parameter which is the time difference between T1 T3. Changes in T3 minus T1 are indicative of something happening to blood volume. If the T1-3 value goes up and the patient is on an infusion system, it can be an indication of having too much fluid pumped and if T1-3 is lower than it should be for an individual, they are either dehydrated (which can result in decreases in blood volume), they are hemorrhaging, or they have hemorrhaged. A downtrend in T13 can tell whether someone is continuing to hemorrhage.

Abstract: A system for detecting dehydration, hemorrhaging, and increases in blood volume comprising monitors the time difference between the arrival of the primary left ventricular ejection pulse (pulse T1) and the arrival of the iliac reflection (pulse T3) to determine an arterial pulse parameter which is the time difference between T1 T3. Changes in T3 minus T1 are indicative of something happening to blood volume. If the T1-3 value goes up and the patient is on an infusion system, it can be an indication of having too much fluid pumped and if T1-3 is lower than it should be for an individual, they are either dehydrated (which can result in decreases in blood volume), they are hemorrhaging, or they have hemorrhaged.

Abstract: A system for detecting dehydration, hemorrhaging, and increases in blood volume comprising monitors the time difference between the arrival of the primary left ventricular ejection pulse (pulse T1) and the arrival of the iliac reflection (pulse T3) to determine an arterial pulse parameter which is the time difference between T1 T3. Changes in T3 minus T1 are indicative of something happening to blood volume. If the T1?3 value goes up and the patient is on an infusion system, it can be an indication of having too much fluid pumped and if T1?3 is lower than it should be for an individual, they are either dehydrated (which can result in decreases in blood volume), they are hemorrhaging, or they have hemorrhaged.

Abstract: A pulse monitoring plethysmograph system for establishing a history of the pulses of the user over an extended period of time, comprises a housing, a piezoelectric sensing element mounted within said housing, and fixed to the housing, a force transmitting member positioned to cause said piezoelectric sensing element to flex in response to an external force and to generate a current, and a transimpedance amplifier. The transimpedance amplifier converts the current generated by the flexing of the piezoelectric element into a voltage signal and an analog to digital converter converts the voltage signal into digital data. A digital memory storing member is provided for storing the digital data and establishing a history of data over an extended period of time.

Abstract: A variable coupler fiberoptic sensor utilizes a coupler having a fused coupling region that can be deflected to change the light distribution to a plurality of output fibers without putting the coupling region under tension. A compact, rugged, and highly sensitive sensor design is achieved by use of a coupler having a fused coupling region arranged substantially in a U-shape to allow the input and output fiberoptic leads to extend from the same side of the sensor structure.

Abstract: A variable coupler fiberoptic sensor utilizes a coupler having a fused coupling region that can be deflected to change the light distribution to a plurality of output fibers without putting the coupling region under tension. A compact, rugged, and highly sensitive sensor design is achieved by use of a coupler having a fused coupling region arranged substantially in a U-shape to allow the input and output fiberoptic leads to extend from the same side of the sensor structure.

Abstract: The invention relates broadly to a fiber optic sensor device, advantageously, a refractive index measurement device. A light emitting member transmits light, preferably coherent light, to a light splitter. The light splitter splits the light into a first portion that is transmitted to a first fiber optic coupler having an input optical fiber member and an optical fiber member having a waist region. A first output optical fiber member emerges from the first fiber optic coupler waist region. The light splitter is positioned to insert light into the first fiber optic coupler input optical fiber member. A reference fiber optic coupler includes an input optical fiber member and an optical fiber member having a waist region. The reference fiber optic coupler is enclosed in a potting medium stable reference of constant refractive index. A reference output optical fiber member emerges from the reference fiber optic coupler waist region.

Abstract: A variable coupler fiberoptic sensor utilizes a coupler having a fused coupling region that can be deflected to change the light distribution to a plurality of output fibers without putting the coupling region under tension. A compact, rugged, and highly sensitive sensor design is achieved by use of a coupler having a fused coupling region arranged substantially in a U-shape to allow the input and output fiberoptic leads to extend from the same side of the sensor structure.