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3940results about "Organ movement/changes detection" patented technology

Portable integrated physiological monitoring system

A portable, integrated physiological monitoring system is described for use in clinical outpatient environments. This systems consists of a plethora of sensors and auxiliary devices, an electronics unit (100) that interfaces to the sensors and devices, and a portable personal computer (102). Electrodes (106) are provided to acquisition electrocardiographic, electroencephalographic, and neuromuscular signals. Electrodes (108) are provided to stimulate neural and muscular tissue. A finger pulse oximeter (110), an M-mode ultrasonic transducer (112), an airflow sensor (114), a temperature probe (120), a patient event switch (116), and an electronic stethoscope (118) are provided. A portable personal computer (102) interfaces to the electronics unit (100) via a standard parallel printer port interface (258) to allow communication of commands and information to/from the electronics unit (100). Control and display of the information gathered from the electronics unit (100) is accomplished via an application program executing on the portable personal computer (102). Sharing of common data acquisition hardware along with preliminary processing of information gathered is accomplished within the electronics unit (100). The entire system is battery operated and portable. This system, because of its architecture, offers significant cost advantages as well as unique modes of operation that cannot be achieved from the individual physiological parameter measurement devices alone. The system allows for the integration of acquisitioned information from the sensors into a patient's database stored on the portable personal computer.

Imaging, therapy, and temperature monitoring ultrasonic system

An ultrasonic system useful for providing imaging, therapy and temperature monitoring generally comprises an acoustic transducer assembly configured to enable the ultrasound system to perform the imaging, therapy and temperature monitoring functions. The acoustic transducer assembly comprises a single transducer that is operatively connected to an imaging subsystem, a therapy subsystem and a temperature monitoring subsystem. The ultrasound system may also include a display for imaging and temperature monitoring functions. An exemplary single transducer is configured such that when connected to the subsystems, the imaging subsystem can generate an image of a treatment region on the display, the therapy subsystem can generate high power acoustic energy to heat the treatment region, and the temperature monitoring subsystem can map and monitor the temperature of the treatment region and display the temperature on the display, all through the use of the single transducer. Additionally, the acoustic transducer assembly can be configured to provide three-dimensional imaging, temperature monitoring or therapeutic heating through the use of adaptive algorithms and/or rotational or translational movement. Moreover, a plurality of the exemplary single transducers can be provided to facilitate enhanced treatment capabilities.

Apparatus and Method for Endovascular Device Guiding and Positioning Using Physiological Parameters

An endovascular access and guidance system has an elongate body with a proximal end and a distal end; a non-imaging ultrasound transducer on the elongate body configured to provide in vivo non-image based ultrasound information of the vasculature of the patient; an endovascular electrogram lead on the elongate body in a position that, when the elongate body is in the vasculature, the endovascular electrogram lead electrical sensing segment provides an in vivo electrogram signal of the patient; a processor configured to receive and process a signal from the non-imaging ultrasound transducer and a signal from the endovascular electrogram lead; and an output device configured to display a result of information processed by the processor. An endovascular device has an elongate body with a proximal end and a distal end; a non-imaging ultrasound transducer on the elongate body; and an endovascular electrogram lead on the elongate body in a position that, when the endovascular device is in the vasculature, the endovascular electrogram lead is in contact with blood. The method of positioning an endovascular device in the vasculature of a body is performed by advancing the endovascular device into the vasculature; transmitting a non-imaging ultrasound signal into the vasculature using a non-imaging ultrasound transducer on the endovascular device; receiving a reflected ultrasound signal with the non-imaging ultrasound transducer; detecting an endovascular electrogram signal with a sensor on the endovascular device; processing the reflected ultrasound signal received by the non-imaging ultrasound transducer and the endovascular electrogram signal detected by the sensor; and positioning the endovascular device based on the processing step.

Single or multi-mode cardiac activity data collection, processing and display obtained in a non-invasive manner

The method of presenting concurrent information about the electrical and mechanical activity of the heart using non-invasively obtained electrical and mechanical cardiac activity data from the chest or thorax of a patient comprises the steps of: placing at least three active Laplacian ECG sensors at locations on the chest or thorax of the patient; where each sensor has at least one outer ring element and an inner solid circle element, placing at least one ultrasonic sensor on the thorax where there is no underlying bone structure, only tissue, and utilizing available ultrasound technology to produce two or three-dimensional displays of the moving surface of the heart and making direct measurements of the exact sites of the sensors on the chest surface to determine the position and distance from the center of each sensor to the heart along a line orthogonal to the plane of the sensor and create a virtual heart surface; updating the measurements at a rate to show the movement of the heart's surface; monitoring at each ultrasonic sensor site and each Laplacian ECG sensor site the position and movement of the heart and the passage of depolarization wave-fronts in the vicinity; treating those depolarization wave-fronts as moving dipoles at those sites to create images of their movement on the image of the beating heart's surface; and, displaying the heart's electrical activity on the dynamically changing image of the heart's surface with the goal to display an approximation of the activation sequence on the beating virtual surface of the heart
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