Abstract: A novel catheter is disclosed comprising an electrode array that is capable of switching between a sensing configuration for sensing electrical signals of biological tissue and an ablation configuration for delivery of ablation energy at a region of interest. Irrigation ports are interlaced within the electrode array to vent irrigant during an ablation procedure to; prevent excessive heating, charring of tissue, coagulation of blood, and allow for efficient delivery of ablation therapy for maximum therapy efficacy. The novel catheter includes a plurality of splines with linear portions wherein the electrodes of the electrode array are disposed. The splines are connected by connectors which include one or more bends capable of storing potential energy when the bends are elastically deformed, enabling collapse and expansion of the catheter in a sheath.

Abstract: A catheter and catheter system can use energy tailored for remodeling and/or removal of target material along a body lumen, often of atherosclerotic material of a blood vessel of a patient. An elongate flexible catheter body with a radially expandable structure may have a plurality of electrodes or other electrosurgical energy delivery surfaces to radially engage atherosclerotic material when the structure expands. An atherosclerotic material detector system may measure and/or characterize the atherosclerotic material and its location, optionally using impedance monitoring.

Abstract: A treatment system for treating tissue is disclosed in which a handle with an elongate shaft projecting from the handle, a sheath axially slidable relative to the elongate shaft, and an electrode mounted on a proximal portion of the sheath is provided. A substrate having an elongate portion may be located within the handle. A plurality of first and second capacitive sensors may be positioned along the elongate portion. The electrode may be configured to slide along the elongate portion during movement of the sheath. The electrode may maintain contact with at least one of the first capacitive sensors at least one of the second capacitive sensors during movement of the sheath. The substrate may be configured to determine an axial position of the electrode based on a coupling capacitance caused by an electrode overlapping one or more of the first capacitive sensors and one or more of the second capacitive sensors.

Abstract: A catheter and catheter system can use energy tailored for remodeling and/or removal of target material along a body lumen, often of atherosclerotic material of a blood vessel of a patient. An elongate flexible catheter body with a radially expandable structure may have a plurality of electrodes or other electrosurgical energy delivery surfaces to radially engage atherosclerotic material when the structure expands. An atherosclerotic material detector system may measure and/or characterize the atherosclerotic material and its location, optionally using impedance monitoring.

Abstract: Apparatus, systems, and methods are provided for the generation and control of energy delivery in a dosage to elicit a therapeutic response in diseased tissue. A balloon catheter can have electrodes attached to a power generator and controller such that the balloon and electrodes contact tissue during energy treatment. Energy selectively may be applied to tissue based on measured impedance to achieve gentle heating. Calibration of the apparatus and identification of attached accessories by computing the circuit impedance prior to energy dosage facilitate regulation of power delivery about a set point. Energy delivery can be controlled to achieve substantially uniform bulk tissue temperature distribution. Energy delivery may beneficially affect nerve activity.

Abstract: Apparatus, systems and methods for reducing feedback in a hearing aid that includes a transducer configured to detect sound, a sound processor configured to process signals from the transducer, a receiver configured to receive signals outputted from the sound processor, and an acoustic feedback reduction system. The acoustic feedback reduction system is configured to provide signals to the sound processor to produce a null targeting signal steerable toward a source of feedback.

Abstract: A catheter and catheter system can use energy tailored for remodeling and/or removal of target material along a body lumen, often of atherosclerotic material of a blood vessel of a patient. An elongate flexible catheter body with a radially expandable structure may have a plurality of electrodes or other electrosurgical energy delivery surfaces to radially engage atherosclerotic material when the structure expands. An atherosclerotic material detector system may measure and/or characterize the atherosclerotic material and its location, optionally using impedance monitoring.

Abstract: A method for generating a control signal from an inaudible acoustic signal comprising modulating the inaudible acoustic signal, wherein the inaudible signal is converted to a modulated inaudible acoustic signal comprising a first frequency comprising 17 kHz over a time duration of 50 ms, a first null over a time duration of 50 ms, a second frequency comprising 18 kHz over a time duration of 100 ms followed by a second null over a time duration of 50 ms, transmitting the modulated inaudible acoustic signal and an audio signal to a signal receiving device, sampling the modulated inaudible acoustic signal at a frequency of 16 kHz, wherein the modulated inaudible acoustic signal is converted to a digitally modulated inaudible acoustic signal, filtering the digitally modulated inaudible acoustic signal to provide an acoustic filter response signal comprising an acoustic null component and an acoustic down-converted component, demodulating the acoustic filter response signal, wherein the acoustic down-converted com

Abstract: Apparatus, systems and methods for reducing feedback in a hearing aid that includes a transducer configured to detect sound, a sound processor configured to process signals from the transducer, a receiver configured to receive signals outputted from the sound processor, and an acoustic feedback reduction system. The acoustic feedback reduction system is configured to provide signals to the sound processor to produce a null targeting signal steerable toward a source of feedback.

Abstract: A method for generating a control signal from an inaudible acoustic signal comprising modulating the inaudible acoustic signal, wherein the inaudible signal is converted to a modulated inaudible acoustic signal comprising a first frequency comprising 17 kHz over a time duration of 50 ms, a first null over a time duration of 50 ms, a second frequency comprising 18 kHz over a time duration of 100 ms followed by a second null over a time duration of 50 ms, transmitting the modulated inaudible acoustic signal and an audio signal to a signal receiving device, sampling the modulated inaudible acoustic signal at a frequency of 16 kHz, wherein the modulated inaudible acoustic signal is converted to a digitally modulated inaudible acoustic signal, filtering the digitally modulated inaudible acoustic signal to provide an acoustic filter response signal comprising an acoustic null component and an acoustic down-converted component, demodulating the acoustic filter response signal, wherein the acoustic down-converted com

Abstract: Disclosed are method and systems for determining the initial state of charge (iSoC) and current state of charge (SoC) for a cell comprising determining a plurality of cell parameters, including current (i), open circuit voltage (OCV), temperature (T) and time to maximum voltage threshold (tcv) of the cell, determining a plurality of cell iSoC parameters as a function of the plurality of cell parameters; determining an adjusted time to maximum voltage threshold (t?cv) of the cell: and determining a corrected iSoC parameter as a function of a predictor-corrector algorithm, the corrected iSoC parameter representing an estimated iSoC of said cell. Also disclosed are methods for determining optimum charge cycle(s) and parameters for the cell based on the corrected iSoC parameter.

Abstract: Disclosed are method and systems for determining the initial state of charge (iSoC) and current state of charge (SoC) for a cell comprising determining a plurality of cell parameters, including current (i), open circuit voltage (OCV), temperature (T) and time to maximum voltage threshold (t,) of the cell, determining a plurality of cell iSoC parameters as a function of the plurality of cell parameters; determining an adjusted time to maximum voltage threshold (t?cv) of the cell; and determining a corrected iSoC parameter as a function of a predictor-corrector algorithm, the corrected iSoC parameter representing an estimated iSoC of said cell. Also disclosed are methods for determining optimum charge cycle(s) and parameters for the cell based on the corrected iSoC parameter.

Abstract: A wireless asymmetrical control system for a personal communication device comprising a first receiver associated with the personal communications device, and a transmitter having an in-band (IE audible) signal device, the IE audible device being configured to generate and transmit a time modulated control signals, the time modulated control signals being generated by generating a first plurality of multi-frequency signals comprising a plurality of first time modulated frequency combinations, and applying the plurality of first time modulated frequency combinations to a first plurality of control signals in a first frequency domain, the receiver being configured to decode the time modulated control signals and generate and transmit response signals to the IE audible signal device in response to the time modulated control signals, each of the response signals comprising an ultra-wide band (UWB) electro-magnetic pulse.

Abstract: Apparatus, systems, and methods are provided for the generation and control of energy delivery in a dosage to elicit a therapeutic response in diseased tissue. A balloon catheter can have electrodes attached to a power generator and controller such that the balloon and electrodes contact tissue during energy treatment. Energy selectively may be applied to tissue based on measured impedance to achieve gentle heating. Calibration of the apparatus and identification of attached accessories by computing the circuit impedance prior to energy dosage facilitate regulation of power delivery about a set point. Energy delivery can be controlled to achieve substantially uniform bulk tissue temperature distribution. Energy delivery may beneficially affect nerve activity.

Abstract: Apparatus, systems, and methods are provided for the generation and control of energy delivery in a dosage to elicit a therapeutic response in diseased tissue. A balloon catheter can have electrodes attached to a power generator and controller such that the balloon and electrodes contact tissue during energy treatment. Energy selectively may be applied to tissue based on measured impedance to achieve gentle heating. Calibration of the apparatus and identification of attached accessories by computing the circuit impedance prior to energy dosage facilitate regulation of power delivery about a set point. Energy delivery can be controlled to achieve substantially uniform bulk tissue temperature distribution. Energy delivery may beneficially affect nerve activity.

Abstract: A catheter and catheter system can use energy tailored for remodeling and/or removal of target material along a body lumen, often of atherosclerotic material of a blood vessel of a patient. An elongate flexible catheter body with a radially expandable structure may have a plurality of electrodes or other electrosurgical energy delivery surfaces to radially engage atherosclerotic material when the structure expands. An atherosclerotic material detector system may measure and/or characterize the atherosclerotic material and its location, optionally using impedance monitoring.

Abstract: A catheter and catheter system can use energy tailored for remodeling and/or removal of target material along a body lumen, often of atherosclerotic material of a blood vessel of a patient. An elongate flexible catheter body with a radially expandable structure may have a plurality of electrodes or other electrosurgical energy delivery surfaces to radially engage atherosclerotic material when the structure expands. An atherosclerotic material detector system may measure and/or characterize the atherosclerotic material and its location, optionally using impedance monitoring.