Abstract: A signal reading and charging device for use with an implantable telemetric medical sensor comprises a casing and a circuit within the casing comprising a logic control unit and a processing unit. The logic control unit sends a powering signal to the telemetric medical sensor for remotely powering the sensor. The logic control unit also receives a transmitted signal from the sensor. The processing unit is operatively connected to the control unit for converting the transmitted signal by the sensor into a measured parameter. An antenna coil is used for sending the powering signal and receiving the transmitted signal from the sensor. The device also includes a display for displaying the measured parameter.

Abstract: A method for telemetrically measuring a parameter in a patient's heart comprises the steps of imaging the heart and identifying an implantation site in the heart. An opening is created in the tissue at the implantation site. A sensor comprising a housing, a membrane at one end of the housing wherein the membrane is deformable in response to the parameter, and a microchip positioned within the housing and operatively communicating with the membrane for transmitting a signal indicative of the parameter is provided. The sensor is placed in the opening and the parameter is telemetrically measured from outside of the patient's body based on the transmitted signal by the sensor. The sensor is also telemetrically powered from outside of the patient's body. A signal charging and reading device is placed outside of the patient's body for telemetric powering and signal reading with respect to the sensor.

Abstract: A telemetric medical sensor for implantation in a patient's body for measuring a parameter therein is provided. The sensor comprises a housing and a membrane at one end of the housing. The membrane is deformable in response to the parameter being measured. A microchip is positioned within the housing and operatively communicates with the membrane for transmitting a digital signal indicative of the parameter. The microchip comprises an array of photoelectric cells for use with an LED for transmitting light at the photoelectric cells. A shutter is connected to the membrane and moveable between the photoelectric cells and the LED in response to deforming of the membrane.

Abstract: A telemetric medical system comprises a telemetric medical sensor for implantation in a patient's body for measuring a parameter therein. The sensor comprises a housing and a membrane at one end of the housing. The membrane is deformable in response to the parameter. A microchip is positioned within the housing and operatively communicates with the membrane for transmitting a signal indicative of the parameter. The system also includes a signal reading and charging device locatable outside of a patient's body for communication with the sensor. The signal reading and charging device comprises a casing and a circuit within the casing. The circuit includes a logic control unit and a processing unit. The logic control unit sends a powering signal to the sensor for remotely powering the sensor.

Abstract: A method for monitoring revascularization treatment provided to tissue, such as heart tissue, comprises the steps of identifying a location in tissue and positioning a catheter at the location. Electrical signals of the tissue are measured in order to establish pre-revascularization data wherein the pre-revascularization data is stored. Energy is imparted to the tissue with the catheter in order to create a channel in the tissue at the location. Electrical signals of the tissue are measured after creation of the channel in order to establish post-revascularization data. The pre-revascularization data and the post-revascularization data are compared in order to determine successful treatment to the tissue.

Abstract: A signal reading and charging device for use with an implantable telemetric medical sensor comprises a casing and a circuit within the casing comprising a logic control unit and a processing unit. The logic control unit sends a powering signal to the telemetric medical sensor for remotely powering the sensor. The logic control unit also receives a transmitted signal from the sensor. The processing unit is operatively connected to the control unit for converting the transmitted signal by the sensor into a measured parameter. An antenna coil is used for sending the powering signal and receiving the transmitted signal from the sensor. The device also includes a display for displaying the measured parameter.

Abstract: A method for telemetrically measuring a parameter in a patient's heart comprises the steps of imaging the heart and identifying an implantation site in the heart. An opening is created in the tissue at the implantation site. A sensor comprising a housing, a membrane at one end of the housing wherein the membrane is deformable in response to the parameter, and a microchip positioned within the housing and operatively communicating with the membrane for transmitting a signal indicative of the parameter is provided. The sensor is placed in the opening and the parameter is telemetrically measured from outside of the patient's body based on the transmitted signal by the sensor. The sensor is also telemetrically powered from outside of the patient's body. A signal charging and reading device is placed outside of the patient's body for telemetric powering and signal reading with respect to the sensor.

Abstract: A telemetric medical system comprises a telemetric medical sensor for implantation in a patient's body for measuring a parameter therein. The sensor comprises a housing and a membrane at one end of the housing. The membrane is deformable in response to the parameter. A microchip is positioned within the housing and operatively communicates with the membrane for transmitting a signal indicative of the parameter. The system also includes a signal reading and charging device locatable outside of a patient's body for communication with the sensor. The signal reading and charging device comprises a casing and a circuit within the casing. The circuit includes a logic control unit and a processing unit. The logic control unit sends a powering signal to the sensor for remotely powering the sensor. The logic control unit also receives the transmitted signal from the sensor wherein the processing unit operatively connected to the control unit converts the transmitted signal by the sensor into a measured parameter.

Abstract: A system for determining the disposition of a probe within the body of a patient includes a probe having probe field transducers and one or more reference field transducers. The reference field transducers are affixed to a rigid but repositionable frame constructed to allow the transducers to be positioned in close proximity to the body. Non-ionizing fields are transmitted and detected between the probe and reference field transducers, and from the detected fields the relative disposition of the probe with respect to the reference field transducers is determined.

Abstract: Apparatus for PNR treatment, including an elongate probe having a distal end for engaging heart tissue of a subject, and a revascularization device, which imparts energy to the heart tissue for generating perfusion-enhancing channels therein. A sensor provides an indication responsive to the treatment, preferably by receiving signals generated by the body of the subject.