Abstract: A wearable device includes a processor and a lower module. The lower module includes a pressure sensor for detecting a mechanical movement of a skin that covers an artery. The mechanical movement of the skin is due to blood flow through the artery. The processor is configured to receive skin movement information from the movement sensor; calculate a pulse front velocity (PFV), which is a velocity of a blood wave as the blood wave passes under the pressure sensor; estimate a pulse wave velocity (PWV) using the PFV; and estimate the blood pressure using the PWV.

Abstract: Remotely-controllable internal devices for insertion into a biological lumen and similar spaces within biological organisms; and magnetic systems for remote control thereof. Embodiments include mechanisms for linear motion within a lumen, mechanisms for payload release of therapeutic, diagnostic, and examination materials, and anchoring mechanisms for affixing a device to the outer wall of a lumen for a variety of medical and biological purposes. Related embodiments provide additional features including gradual payload release and reversibly-anchoring mechanisms Different functionalities (motion, payload release, anchoring) are independently-controllable through embodiment configurations featuring differing magnetic force thresholds and orthogonally-oriented magnetic responses.

Abstract: Described herein are systems and methods for collecting physiological information from a user and determining information including, but not limited to, a user's heart rate, blood pressure, oxygen levels (SvO2), hydration, respiration rate, and heart rate variability. Physiological information is collected from one or more modules, each comprising a sensor array. The sensor array(s) can comprise, among other things, light sources, photo detectors, ECG electrodes/sensors, bio impedance sensors, galvanic skin response sensors, tonometry/contact sensors, accelerometers, pressure sensors, acoustic sensors, and electromagnetic sensors. The information collected from a user can be used to cross-reference a database comprising similar information for a number of subjects as well as verified measurements for each subject including, but not limited to, blood pressure, oxygen levels (SvO2), hydration, respiration rate, and heart rate variability.

Abstract: This invention relates to apparatus for creating a magnetic field to propel a magnetic device within a diverse media including biological matrices, tissues, organs, animals and humans. In one embodiment, a cylindrical dual Halbach array provides a uniform magnetic field with a settable field direction. Another embodiment provides support and orientation apparatus for a controlled-gradient conical magnet to achieve a full 4? steradian solid angle coverage around the specimen.

Abstract: This invention relates to apparatus for propelling an internal device within a viscous medium in a biological tissue. The invention relates to a device, an apparatus and to systems and methods for device propulsion and for medical use of the propelled device.

Abstract: Apparatus and systems for providing magnetic fields for controlling micro-devices implanted in a patient body, organ, or tissue. Novel coil configurations are disclosed which provide magnetic fields of adequate strength and directional characteristics over a large operational region with minimal weight and power dissipation, while providing ease of access to the focus regions. Also provided are micro-devices in various size regimes which can be controlled both in position as well as in function (such as release of therapeutic materials), and which are capable of both energy and data transfer with the magnetic field control system.

Abstract: A wearable device includes a processor and a lower module. The lower module includes a pressure sensor for detecting a mechanical movement of a skin that covers an artery. The mechanical movement of the skin is due to blood flow through the artery. The processor is configured to receive skin movement information from the movement sensor; calculate a pulse front velocity (PFV), which is a velocity of a blood wave as the blood wave passes under the pressure sensor; estimate a pulse wave velocity (PWV) using the PFV; and estimate the blood pressure using the PWV.

Abstract: Optical apparatus (64) includes a stator assembly (47), which includes a core (78, 90, 91) containing an air gap and one or more coils (80, 92, 94, 116, 120) including conductive wire wound on the core so as to cause the core to form a magnetic circuit through the air gap in response to an electrical current flowing in the conductive wire. A scanning mirror assembly (45, 83, 85, 130) includes a support structure (68), a base (72), which is mounted to rotate about a first axis relative to the support structure, and a mirror (46), which is mounted to rotate about a second axis relative to the base. At least one rotor (76, 132) includes one or more permanent magnets, which are fixed to the scanning mirror assembly and which are positioned in the air gap so as to move in response to the magnetic circuit. A driver (82) is coupled to generate the electrical current in the one or more coils.

Abstract: Described herein are systems and methods for collecting physiological information from a user and determining information including, but not limited to, a user's heart rate, blood pressure, oxygen levels (SvO2), hydration, respiration rate, and heart rate variability. Physiological information is collected from one or more modules, each comprising a sensor array. The sensor array(s) can comprise, among other things, light sources, photo detectors, ECG electrodes/sensors, bio impedance sensors, galvanic skin response sensors, tonometry/contact sensors, accelerometers, pressure sensors, acoustic sensors, and electromagnetic sensors. The information collected from a user can be used to cross-reference a database comprising similar information for a number of subjects as well as verified measurements for each subject including, but not limited to, blood pressure, oxygen levels (SvO2), hydration, respiration rate, and heart rate variability.

Abstract: Designs and method of construction for planar stators useable inter alia for axial air-gap electric machines are provided. In some embodiments these designs make highly efficient use of the space occupied by the stator, substantially filling most of its volume with active conductors. Some embodiments comprise at least one flexible conductor member (e.g. a flat cable) periodically bent by about 180° to form both external and internal peripheries of a two-layer planar stator. In some embodiments disk-like or ring-like members are used to shape and/or to secure the flexible conductor. In some embodiments adhesive members and/or encapsulating and/or potting of conductive elements provide solidity and rigidity of the stator(s). In some embodiments a plurality of planar stators are interleaved with a plurality of planar rotors, producing an efficient system electrical motor and/or generator.

Abstract: Optical apparatus (64) includes a stator assembly (47), which includes a core (78, 90, 91) containing an air gap and one or more coils (80, 92, 94, 116, 120) including conductive wire wound on the core so as to cause the core to form a magnetic circuit through the air gap in response to an electrical current flowing in the conductive wire. A scanning mirror assembly (45, 83, 85, 130) includes a support structure (68), a base (72), which is mounted to rotate about a first axis relative to the support structure, and a mirror (46), which is mounted to rotate about a second axis relative to the base. At least one rotor (76, 132) includes one or more permanent magnets, which are fixed to the scanning mirror assembly and which are positioned in the air gap so as to move in response to the magnetic circuit. A driver (82) is coupled to generate the electrical current in the one or more coils.

Abstract: Optical apparatus (64) includes a stator assembly (47), which includes a core (78, 90, 91) containing an air gap and one or more coils (80, 92, 94, 116, 120) including conductive wire wound on the core so as to cause the core to form a magnetic circuit through the air gap in response to an electrical current flowing in the conductive wire. A scanning mirror assembly (45, 83, 85, 130) includes a support structure (68), a base (72), which is mounted to rotate about a first axis relative to the support structure, and a mirror (46), which is mounted to rotate about a second axis relative to the base. At least one rotor (76, 132) includes one or more permanent magnets, which are fixed to the scanning mirror assembly and which are positioned in the air gap so as to move in response to the magnetic circuit. A driver (82) is coupled to generate the electrical current in the one or more coils.

Abstract: A method of scanning a light beam is disclosed. The method comprises scanning the light beam along a first axis and scanning the light beam along a second axis, such that a functional dependence of the scanning along the first axis is substantially a step-wave, and a functional dependence of the scanning along the second axis is other than a step-wave.

Abstract: Optical apparatus (64) includes a stator assembly (47), which includes a core (78, 90, 91) containing an air gap and one or more coils (80, 92, 94, 116, 120) including conductive wire wound on the core so as to cause the core to form a magnetic circuit through the air gap in response to an electrical current flowing in the conductive wire. A scanning mirror assembly (45, 83, 85, 130) includes a support structure (68), a base (72), which is mounted to rotate about a first axis relative to the support structure, and a mirror (46), which is mounted to rotate about a second axis relative to the base. At least one rotor (76, 132) includes one or more permanent magnets, which are fixed to the scanning mirror assembly and which are positioned in the air gap so as to move in response to the magnetic circuit. A driver (82) is coupled to generate the electrical current in the one or more coils.

Abstract: Planar rotor designs for axial air-gap electric machines are presented. Some embodiments comprise rotors each of whose magnetic poles comprise a pair of permanent magnets each magnetized in an orientation of about 45° to the direction of the rotor axis. In some embodiments, axial components of the magnetization of each pair of magnets are co-directional, and tangential components of the magnetization of each pair of magnets are opposite.

Abstract: Designs and method of construction for planar stators useable inter alia for axial air-gap electric machines are provided. In some embodiments these designs make highly efficient use of the space occupied by the stator, substantially filling most of its volume with active conductors. Some embodiments comprise at least one flexible conductor member (e.g. a flat cable) periodically bent by about 180° to form both external and internal peripheries of a two-layer planar stator. In some embodiments disk-like or ring-like members are used to shape and/or to secure the flexible conductor. In some embodiments adhesive members and/or encapsulating and/or potting of conductive elements provide solidity and rigidity of the stator(s). In some embodiments a plurality of planar stators are interleaved with a plurality of planar rotors, producing an efficient system electrical motor and/or generator.

Abstract: A method of scanning a light beam is disclosed. The method comprises scanning the light beam along a first axis and scanning the light beam along a second axis, such that a functional dependence of the scanning along the first axis is substantially a step-wave, and a functional dependence of the scanning along the second axis is other than a step-wave.

Abstract: A method of scanning a light beam is disclosed. The method comprises scanning the light beam along a first axis and scanning the light beam along a second axis, such that a functional dependence of the scanning along the first axis is substantially a step-wave, and a functional dependence of the scanning along the second axis is other than a step-wave.

Abstract: A method of scanning a light beam is disclosed. The method comprises scanning the light beam along a first axis and scanning the light beam along a second axis, such that a functional dependence of the scanning along the first axis is substantially a step-wave, and a functional dependence of the scanning along the second axis is other than a step-wave.

Abstract: A method of scanning a light beam is disclosed. The method comprises scanning the light beam along a first axis and scanning the light beam along a second axis, such that a functional dependence of the scanning along the first axis is substantially a step-wave, and a functional dependence of the scanning along the second axis is other than a step-wave.