A system for detecting salt ion concentration, comprising a device further comprising a sensor having a carbon printed electrode on a flexible substrate with adhesive on one side (backside) and the circuit electronics to generate pulse signal stimuli and measure salt concentrations to determine hydration level of a person or a living being, wherein the device is a wearable device. The electrode can be made into different shapes changing the area as necessary, since it is a carbon printed electrode and is flexible.

An electrical interferential technique is used to determine operable treatment parameters which are then used to apply a treatment to a patient. A range of beat frequencies is applied to the patient and an indicator of autonomic nervous system activity is measured. When some degree of autonomic nervous system activity is detected, a subsequent trial is conducted using an overlaying range of frequencies, a narrower range or a single frequency, in an attempt to fine tune the reaction of the autonomic nervous system. The subsequent trial may use a different measure of activity of the autonomic nervous system. A garment having a series of electrode sites thereon may be used for a partially trained person to correctly apply electrodes to the patient's body. The treatments may be conducted while the patient is asleep.

An electrical interferential technique is used to determine operable treatment parameters which are then used to apply a treatment to a patient. A range of beat frequencies is applied to the patient and an indicator of autonomic nervous system activity is measured. When some degree of autonomic nervous system activity is detected, a subsequent trial is conducted using an overlaying range of frequencies, a narrower range or a single frequency, in an attempt to fine tune the reaction of the autonomic nervous system. The subsequent trial may use a different measure of activity of the autonomic nervous system. A garment having a series of electrode sites thereon may be used for a partially trained person to correctly apply electrodes to the patient's body. The treatments may be conducted while the patient is asleep.

There is provided a device for acquiring biometric electrical signals comprising at least two electrodes. The device also comprises a current supply comprising a direct current supply, an alternating current supply, and a switch actuatable to switch selectively between the direct current supply and the alternating current supply. The device further comprises a capacitive coupling to couple each electrode to the current supply, a direct coupling to couple each electrode to the current supply, and a switch actuatable to switch selectively between the direct coupling and the capacitive coupling. The device also comprises a data acquisition module.

There is provided a device for acquiring biometric electrical signals comprising at least two electrodes. The device also comprises a current supply comprising a direct current supply, an alternating current supply, and a switch actuatable to switch selectively between the direct current supply and the alternating current supply. The device further comprises a capacitive coupling to couple each electrode to the current supply, a direct coupling to couple each electrode to the current supply, and a switch actuatable to switch selectively between the direct coupling and the capacitive coupling. The device also comprises a data acquisition module.

An electromagnetic (EM)-based diagnostics and monitoring system and method for the non-Invasive diagnosis and monitoring of in-vivo and ex-vivo Skin Anomalies Using Lesion-Optimized Sensor System Design and Topology is disclosed herein.

Systems and methods are provided for measuring depth, position, and/or angle of a cannula in a medical drug delivery device. In particular, a drug delivery device having a cannula is positioned adjacent to tissue, a voltage pulse is provided to the cannula, a charge is measured at an electrode in the drug delivery device, and the depth of penetration of the cannula is determined based in part on the charge at the first electrode. Systems and methods described herein can be used to determine subcutaneous insertion depth in a wearable bolus injector. In some implementations, insertion depth determination is achieved through capacitive sensors which measure needle depth in a drug delivery device.

Systems and methods are provided for measuring depth, position, and/or angle of a cannula in a medical drug delivery device. In particular, a drug delivery device having a cannula is positioned adjacent to tissue, a voltage pulse is provided to the cannula, a charge is measured at an electrode in the drug delivery device, and the depth of penetration of the cannula is determined based in part on the charge at the first electrode. Systems and methods described herein can be used to determine subcutaneous insertion depth in a wearable bolus injector. In some implementations, insertion depth determination is achieved through capacitive sensors which measure needle depth in a drug delivery device.

A processing system deployed in a carrier transport vehicle may establish a wireless communication session with a mobile device of a user, assign a zone of the carrier transport vehicle to the user, the zone including a plurality of network-connected devices, obtain a user profile from the mobile device of the user, determine at least one biometric sensor accessible via the mobile device of the user, obtain biometric data of the user from the at least one biometric sensor accessible via the mobile device of the user, determine a condition of the user based upon the biometric data, identify at least one adjustment to at least one of the plurality of network-connected devices in response to the condition of the user that is determined and the user profile, and apply the at least one adjustment to the at least one of the plurality of network-connected devices.

A system for controlling blood pressure includes a wearable interface having an internal contact surface, the wearable interface configured to at least partially encircle a first portion of a first limb of a subject, a sensing module carried by the wearable interface and configured to determine at least a change in blood pressure of the first limb of the subject, and an energy application module carried by the wearable interface and configured to apply energy of two or more types to the first limb of the subject.