Patent application number | Description | Published |
20110156897 | DETERMINATION OF AN ALARM-ISSUING TIME OF AN ALARM DEVICE - A method for determining a triggering time for the issuance of an alarm by an alarm device. A measured value is sensed at a measuring time, and the measured value is indicative of a hazard potential within a monitoring range. A waiting time is identified by way of a function which respectively indicates an assigned waiting time for a plurality of different measured values and which has a continuous profile. The triggering time is determined on the basis of the measuring time and the identified waiting time. In addition, an alarm device having a detection device for sensing a measured value and having an evaluation device which is configured to carry out said method is described. In addition, a program element for determining a triggering time for the issuance of an alarm by an alarm device is described, wherein the program element can be loaded into an evaluation unit of the alarm device and can cause the abovementioned method to be carried out. | 06-30-2011 |
20130074575 | METHOD AND TEST DEVICE FOR FIELD CALIBRATION OF A GAS DETECTOR - A method and test devices are used for field calibration of gas detectors. Brand new gas detectors are used as measurement standards in field calibration. The brand new gas detectors are in this case either employed directly as working standards, in which case the regular calibration by a reference standard is dispensed with, since the brand new gas detectors are always deemed to be sufficiently accurate. Alternatively, the brand new gas detectors are employed directly, namely as sufficiently accurately calibrated reference standards for the reference gas sensors acting as working standards and incorporated into the test device. In both cases the measured values of the gas sensors in the gas detectors to be calibrated are fed back to a sufficiently calibrated system, namely either directly to at least one brand new gas detector as a working standard or else to a reference sensor of a calibrated test device. | 03-28-2013 |
20140375463 | FUNCTIONAL MONITORING OF AN ELECTROLYTIC GAS SENSOR HAVING THREE ELECTRODES, AND HAZARD ALARM AND GAS MEASURING DEVICE - An electrolytic gas sensor which is sensitive to a specific gas and has a working, reference and counter electrode is functionally monitored. A differential voltage between the reference and working electrodes is amplified and the potential of the counter electrode is regulated to minimize the differential voltage. Then a measured current flowing into the counter electrode approximately proportionally to the gas concentration of the gas to be detected arises. Independently of the determination of the gas concentration, a working, counter and reference voltage which is present at the three electrodes in each case is captured and monitored for an impermissible deviation. In an impermissible case an assigned error message is then output. Online monitoring of the gas sensor is thus possible and no interruption of the measurement operation for test purposes and additional components are required. | 12-25-2014 |
Patent application number | Description | Published |
20080275344 | Method and Apparatus for Categorizing Breast Density and Assessing Cancer Risk Utilizing Acoustic Parameters - A method for categorizing whole-breast density is disclosed. The method includes the steps of exposing breast tissue to an acoustic signal; measuring a distribution of an acoustic parameter by analyzing the acoustic signal; and obtaining a measure of whole-breast density from said measuring step. An apparatus is also disclosed. | 11-06-2008 |
20110201928 | METHOD OF CHARACTERIZING THE PATHOLOGICAL RESPONSE OF TISSUE TO A TREATMENT PLAN - A method of characterizing the pathological response of tissue to a treatment plan, including: obtaining a set of sequential morphology renderings of the tissue, wherein each rendering corresponds to a particular point in time during the treatment plan; generating a set of representative values of a biomechanical property of the tissue for the set of renderings, wherein each representative value is based on a corresponding rendering; determining a trend of the biomechanical property based on the set of representative values; and predicting response of the tissue to the treatment plan based on the trend of the biomechanical property. | 08-18-2011 |
20110201932 | METHOD OF CHARACTERIZING TISSUE OF A PATIENT - A method for characterizing tissue of a patient, including receiving acoustic data derived from the interaction between the tissue and the acoustic waves irradiating the tissue; generating a morphology rendering of the tissue from the acoustic data, in which the rendering represents at least one biomechanical property of the tissue; determining a prognostic parameter for a region of interest in the rendering, in which the prognostic parameter incorporates the biomechanical property; and analyzing the prognostic parameter to characterize the region of interest. In some embodiment, the method further includes introducing a contrast agent into the tissue; generating a set of enhanced morphology renderings of the tissue after introducing the contrast agent; determining an enhanced prognostic parameter from the enhanced morphology renderings; and analyzing the enhanced prognostic parameter. | 08-18-2011 |
20130041261 | METHOD AND SYSTEM FOR MULTI-GRID TOMOGRAPHIC INVERSION TISSUE IMAGING - The method of one embodiment for multi-grid tomographic inversion tissue imaging comprises receiving acoustic waveform data characterizing a volume of tissue, determining and refining models of the distributions of a first and second acoustomechanical parameter within the volume of tissue using a series of grids with progressively finer discretization levels, and generating an image based on at least one of the refined models of the first and second acoustomechanical parameters. The system of one embodiment for multi-grid tomographic inversion tissue imaging comprises ultrasound emitters configured to surround and emit acoustic waveforms toward a volume of tissue, ultrasound receivers configured to surround tissue and receive acoustic waveforms, and a processor configured to determine and refine models of the distributions of a first and second acoustomechanical parameter within a volume of tissue, and generate an image based on at least one of the refined models of the first and second acoustomechanical parameters. | 02-14-2013 |
20130204136 | SYSTEM AND METHOD FOR IMAGING A VOLUME OF TISSUE - A system and method for imaging a volume of tissue comprising: a modular transducer array, configured to substantially surround the volume of tissue, emit acoustic waveforms toward the volume of tissue, and receive acoustic waveforms scattered by the volume of tissue, comprising a first and a second modular transducer subarray configured to couple to one another; a controller configured to control acoustic signals emitted by the first and the second modular transducer subarrays; an electronic subsystem, coupled to the modular transducer array, comprising a multiplexor and beam-forming elements and configured to receive a set of acoustic data from the first and the second modular transducer subarrays; and a processor configured to analyze the set of acoustic data, determine the distribution of at least one acoustomechanical parameter within the volume of tissue, and render an image of the volume of tissue based on the acoustomechanical parameter. | 08-08-2013 |
20130204137 | Method and System for Denoising Acoustic Travel Times and Imaging a Volume of Tissue - A method and system for denoising acoustic travel times and imaging a volume of tissue comprising receiving a dataset representative of acoustic waveforms originating from an array of ultrasound emitters and received with an array of ultrasound receivers; for each ultrasound emitter in the array of ultrasound emitters, forming an empirical relative travel time matrix, from the dataset, including a set of relative empirical travel times, each relative empirical travel time corresponding to a pair of ultrasound receivers receiving an acoustic waveform, generating a denoised empirical relative travel time matrix, and extracting a set of denoised absolute travel times from the denoised empirical relative travel time matrix; and rendering an image of the volume of tissue based on an acoustomechanical parameter and the set of denoised absolute travel times corresponding to each ultrasound emitter in the array of ultrasound emitters. | 08-08-2013 |
20130303895 | System and Method for Performing an Image-Guided Biopsy - A system and method for performing an image-guided biopsy of a target mass of a volume of tissue comprising: a transducer array comprising a set of ultrasound emitters and a set of ultrasound receivers configured to generate a set of acoustic data based upon acoustic waveforms received from the volume of tissue, wherein the transducer array is configured to enable determination of a location of the target mass based on the set of acoustic data; a base proximate to the transducer array; a fixation plate coupled to the base and cooperating with the base and the transducer array to at least partially define an adjustable receiving space configured to receive the volume of tissue; and a guiding module coupled to the base and comprising an aperture configured to align a biopsy tool with the location of the target mass. | 11-14-2013 |
20140066760 | METHOD OF CHARACTERIZING TISSUE OF A PATIENT - A method for characterizing tissue of a patient, including receiving acoustic data derived from the interaction between the tissue and the acoustic waves irradiating the tissue; generating a morphology rendering of the tissue from the acoustic data, in which the rendering represents at least one biomechanical property of the tissue; determining a prognostic parameter for a region of interest in the rendering, in which the prognostic parameter incorporates the biomechanical property; and analyzing the prognostic parameter to characterize the region of interest. In some embodiment, the method further includes introducing a contrast agent into the tissue; generating a set of enhanced morphology renderings of the tissue after introducing the contrast agent; determining an enhanced prognostic parameter from the enhanced morphology renderings; and analyzing the enhanced prognostic parameter. | 03-06-2014 |
20150297174 | METHOD OF CHARACTERIZING TISSUE OF A PATIENT - A method for characterizing tissue of a patient, including receiving acoustic data derived from the interaction between the tissue and the acoustic waves irradiating the tissue; generating a morphology rendering of the tissue from the acoustic data, in which the rendering represents at least one biomechanical property of the tissue; determining a prognostic parameter for a region of interest in the rendering, in which the prognostic parameter incorporates the biomechanical property; and analyzing the prognostic parameter to characterize the region of interest. In some embodiment, the method further includes introducing a contrast agent into the tissue; generating a set of enhanced morphology renderings of the tissue after introducing the contrast agent; determining an enhanced prognostic parameter from the enhanced morphology renderings; and analyzing the enhanced prognostic parameter. | 10-22-2015 |