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| 20090092260 | AUTOMATIC EXTERNAL DEFIBRILLATOR WITH ENHANCED CLARITY OF AUDIBLE PROMPTS - An automatic external defibrillator produces audible prompts for a user by providing the audible information with default audio characteristics in response to a first ambient noise condition and providing the audible information having different audio characteristics than the default audio characteristics in response to a second ambient noise condition. An automatic external defibrillator provides voice prompts by selecting one of a plurality of different levels of sound quality at which to playback the voice prompts and playing back the voice prompts at the selected level of sound quality. | 04-09-2009 |
| 20100049266 | CPR COACHING DEVICE WITH REDUCED SENSITIVITY TO MOTION - A CPR coaching device is designed for placement on the chest of a patient during CPR. Chest compressions are delivered to the patient by a rescuer by pressing on the device. A force sensor and an accelerometer are located in the device and are responsive to the chest compressions. When the patient's body is stationary there will be a high correlation of a depth signal produced by doubly integrating the acceleration signal of the accelerometer and the force signal, and the depth signal is deemed reliable. When the patient's body is subject to motion such as by the motion of a vehicle transporting the patient, there will be a low correlation of the depth and force signals, with the force signal being relatively immune to this motion. In such cases, the force signal is used in association with the previously determined relationship between depth and force in the absence of motion to produce an indication of chest compression depth. | 02-25-2010 |
| 20100094388 | HALIBUT RELEASE LINER FOR A DEFIBRILLATOR ELECTRODE PAD - A release liner for electrode pads is described which enables the pads to be used with defibrillators requiring the electrodes to be electrically interconnected for self-test prior to use, and with defibrillators which do not require the electrodes to be electrically interconnected. In one example this variation is afforded by folding the release liner one way to electrically connect conductive layers underlying two attached electrodes. In another example this variation is afforded by leaving the conductive layers electrically connected or breaking the connection. | 04-15-2010 |
| 20100228305 | Energy Efficient Defibrillation Current Limiter - A current limiter for a defibrillation pulse is powered by the defibrillation pulse and switches the current delivery path open and closed when an excessive current condition exists. The excessive current condition is sensed by a sense resistor of the current limiter. The controlled current is delivered by an inductor which delivers a current which varies in a range about a predetermined current level during excessive current conditions. The current limiter dissipates little energy of the defibrillation pulse so that most of the energy produced by the defibrillator is delivered to the patient. | 09-09-2010 |
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| 20080228075 | Combination Imaging and Therapy Transducer With Therapy Transducer Amplifier - A combined ultrasound imaging and therapy transducer ( | 09-18-2008 |
| 20080249409 | Method of Using a Combination Imaging and Therapy transducer to Dissolve Blood Clots - A combined ultrasound imaging and therapy transducer includes a linear array of imaging transducer elements. First and second linear arrays of therapy transducer elements extend longitudinally along respective first and second sides of the imaging transducer elements and are canted inwardly toward each other. The imaging and therapy transducer is used with an ultrasound imaging system to locate clots in a region of interest. After the region of interest has been perfused with a microbubble contrast agent, the therapy transducer elements are driven by an amplifier located in the transducer to dissolve the clot. The use of the imaging transducer elements and the therapy transducer elements can be interleaved so that the therapy can be conditioned on an ultrasound image showing substantial destruction of the contrast agent microbubbles, re-perfusion of microbubbles in the region of interest, or the continued presence of the clot. | 10-09-2008 |
| 20080319316 | Combination Imaging and Therapy Transducer - A combined ultrasound imaging and therapy transducer includes a linear array of imaging transducer elements. First and second linear arrays of therapy transducer elements extend longitudinally along respective first and second sides of the imaging transducer elements and are canted inwardly toward each other. The imaging and therapy transducer is used with an ultrasound imaging system to locate clots in a region of interest. After the region of interest has been perfused with a microbubble contrast agent, the therapy transducer elements are driven by an amplifier located in the transducer to dissolve the clot. The use of the imaging transducer elements and the therapy transducer elements can be interleaved so that the therapy can be conditioned on an ultrasound image showing substantial destruction of the contrast agent microbubbles, re-perfusion of microbubbles in the region of interest, or the continued presence of the clot. | 12-25-2008 |
| 20090124907 | Ultrasonic Diagnostic Imaging System and Method for Detecting Lesions of the Liver - Significant liver growths such as HCC lesions are detected during a contrast agent ultrasound exam by their early reception of contrast and brightening following a bolus injection, as compared with surrounding normal tissue and benign growths. A pixel classifier looks for and identifies pixel or voxel regions where this early wash-in of contrast occurs and denotes these pixel or voxel locations in a parametric image. The pixel classifier analyzes pixel or voxel values from a sequence of images and identifies suspicious regions in an image by uniquely coding the points in a parametric liver image where early wash-in occurs. | 05-14-2009 |
| 20100056924 | CONTROL AND DISPLAY OF ULTRASONIC MICROBUBBLE CAVITATION - An ultrasonic diagnostic imaging system is used to insonify a subject infused with a microbubble contrast agent. At low energy levels stable cavitation occurs as the bubbles oscillate radially without breaking up. At higher energy levels the bubbles dissolve or break up, termed inertial cavitation. Echo signals from microbubbles are bandpass filtered to produce signal components in a subharmonic band, indicative of stable cavitation, and signal component in a higher harmonic band indicative of inertial cavitation. Detection of the mode of cavitation is used to automatically or manually control the mode of cavitation by controlling the transmitted acoustic energy of the system. | 03-04-2010 |
| 20100160779 | ULTRASOUND SYSTEM FOR CEREBRAL BLOOD FLOW IMAGING AND MICROBUBBLE-ENHANCED BLOOD CLOT LYSIS - An ultrasonic diagnostic imaging system is described which utilizes one or more transducer arrays affixed to the head of a patient to diagnose and treat stroke victims. The transducer headset produces a two or three dimensional image of the vasculature inside the cranium, preferably assisted by a microbubble contrast agent. A vascular flow map is produced by the system which may be diagnosed for signs of a blood clot. If a blood clot is detected, a therapeutic beam is transmitted while the contrast agent is present to break up the blood clot by the disruption of microbubbles. The headset may also be used in a monitoring application to detect the recurrence of blood clots in a stroke victim. | 06-24-2010 |
| 20110263985 | Dual Path Color Doppler Imaging System and Method for Simultaneous Invasive Device Visualization and Vasculature Imaging - An ultrasound imaging system ( | 10-27-2011 |
| 20120143058 | PROPAGATION-MEDIUM-MODIFICATION-BASED REVERBERATED-SIGNAL ELIMINATION - Acquired echo data is corrected to reduce content from ultrasound that has undergone at least one reflection off the probe surface, for example, to reduce corresponding reverberation artefacts from imaging. In some embodiments, the propagation medium, i.e., layer or adjoining layers, through which the reverberation occurs, is, after a set of echo radiofrequency data ( | 06-07-2012 |
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| 20090309250 | METHODS AND PRESSURE VESSELS FOR SOLID-STATE MICROCELLULAR PROCESSING OF THERMOPLASTIC ROLLS OR SHEETS - Disclosed herein are methods and pressure vessels for solid-state microcellular processing of thermoplastic rolls and sheets. In one embodiment, the present invention is directed to a method for making a gas impregnated interleaved roll, which method comprises: providing a pressure vessel having an internal pressure chamber and a rotatable shaft horizontally positioned within the pressure chamber; placing an interleaved roll about the rotatable shaft and within the pressure chamber, wherein the interleaved roll is made from a thermoplastic material sheet interleaved together with a gas-channeling material sheet; pressurizing the pressure chamber to a selected pressure; rotating the rotatable shaft having the interleaved roll thereabouts (thereby rotating the interleaved roll) while under pressure for a selected period of time; and depressurizing the internal chamber to yield the gas impregnated interleaved roll. In other embodiments, the invention is directed to multi-chambered pressure vessels for gas impregnation of thermoplastic rolls, sheets, and films. | 12-17-2009 |
| 20120065287 | Methods and Pressure Vessels for Solid-State Microcellular Processing of Thermoplastic Rolls or Sheets - Disclosed herein are methods and pressure vessels for solid-state microcellular processing of thermoplastic rolls and sheets. In one embodiment, the present invention is directed to a method for making a gas impregnated interleaved roll, which method comprises: providing a pressure vessel having an internal pressure chamber and a rotatable shaft horizontally positioned within the pressure chamber; placing an interleaved roll about the rotatable shaft and within the pressure chamber, wherein the interleaved roll is made from a thermoplastic material sheet interleaved together with a gas-channeling material sheet; pressurizing the pressure chamber to a selected pressure; rotating the rotatable shaft having the interleaved roll thereabouts (thereby rotating the interleaved roll) while under pressure for a selected period of time; and depressurizing the internal chamber to yield the gas impregnated interleaved roll. In other embodiments, the invention is directed to multi-chambered pressure vessels for gas impregnation of thermoplastic rolls, sheets, and films. | 03-15-2012 |
