147results about How to "Auxiliary diagnosis" patented technology

An apparatus for assessing cardiovascular status of a mammal comprises a system for locally applying a pressure to an artery capable of restricting blood flow through said artery, a wideband external pulse transducer having an output and situated to measure suprasystolic signals proximate to said artery, and a computing device receiving said output for calculating vascular compliance values. The method described is particularly useful for determining cardiac output, assessing whether a pregnant female has preeclampsia or a patient has cardiac insufficiency, or assessing cardiac arrhythmias.

An electronic stethoscope head includes a head member having a contact surface for contact with a patient's body, a transducer in the head member, and an adhesive on the contact surface. A processing system for an electronic stethoscope includes a conditioning circuit configured to receive a transducer signal from a transducer and to be capable of amplifying and/or filtering the transducer signal, to yield a conditioned signal. There is also a signal processor system configured to subject the conditioned signal to an audio editing process. Bodily sounds are detected by applying an electronic stethoscope head a patient's body; generating a patient sonograph of the patient's bodily sounds; and comparing the patient sonograph to a reference sonograph. An electronic stethoscope system may include an accessory device and control circuitry to control the accessory device when abnormal bowel sounds are detected or no bowel sounds are detected for a predetermined interval.

The methods and systems of the present invention are useful in the diagnosis of inflammatory bowel disease (IBD) and in the prognosis of IBD progression and disease complications. With the present invention, it is possible to predict outcome of disease and patients who will have a particular risk of disease complications and/or progression to surgery.

Disclosed are compositions and methods for isolating, detecting, amplifying, and quantitating Mycobacterium-specific nucleic acids in a sample. Also disclosed are compositions and diagnostic kits comprising Mycobacterium IS6110-specific oligonucleotide amplification primers and labeled oligonucleotide detection probes that specifically bind to the amplification products obtained therefrom. Also disclosed are compositions and methods for the isolation and characterization of nucleic acids that are specific to one or more tubercular pathogens, including Mycobacterium tuberculosis, in particular, from a wide variety of samples including those of biological, environmental, clinical and/or veterinary origin.

An apparatus for assessing cardiovascular status of a mammal comprises a system for locally applying a pressure to an artery capable of restricting blood flow through said artery, a wideband external pulse transducer having an output and situated to measure suprasystolic signals proximate to said artery, and a computing device receiving said output for calculating vascular compliance values. The method described is particularly useful for determining cardiac output, assessing whether a pregnant female has preeclampsia or a patient has cardiac insufficiency, or assessing cardiac arrhythmia.

An assay method and kit is disclosed for detecting the presence of at least one predesignated, target antibody to a mycobacterium in a sample selected from one or more patient bodily fluids. The method comprises the following steps: (a) contacting the sample of one or more patient bodily fluids with at least one mycobacterium antigen on a lateral-flow assay membrane to bind to the target antibody in the sample; (b) previously, simultaneously or subsequently to step (a), binding the at least one mycobacterium antigen with a conjugated label producing a detectable signal; and (c) detecting the signal whereby the presence of the target antibody is determined in the sample by the intensity or presence of the signal. The method can further comprise the step of evaluating immunization status of the patient from whom the sample came by comparing the signal or lack thereof with immunizations previously received by the patient and in comparison to a known standard control. In a preferred embodiment, the mycobacterium antigen specifically binds to Mycobacterium tuberculosis specific antibodies. Preferably, the immunoassay of the present invention comprises a lateral-flow assay comprising a membrane, a conjugated label pad, and at least one mycobacterium antigen bound to the membrane. In a preferred embodiment, the at least one mycobacterium antigen is selected from the group consisting of 38 kDa and 16 kDa antigens.

The present application generally relates communications and hazard avoidance within a monitored driving environment. More specifically, the application teaches a system and method for improved target object detection in a vehicle equipped with a laser detection and ranging LIDAR system by employing a variable LIDAR pulse rate.

An auscultation system includes a transducer for generating an acoustic signal at a transducing location of the subject, and a sensor for receiving an attenuated acoustic signal at a sensing location of the subject. The attenuated signal received at the sensing location is digitized, and may be analyzed in the frequency and/or time domain. The comparison of the digitized attenuated signal against the initial transduced signal allows for the computation of the degree of acoustic attenuation between the transducing and sensing locations. Acoustic attenuation may be utilized to generate an intensity ratio. The ejection fraction of the heart subject may then be computed by correlation to the intensity ratio. Pulse echo methods are also disclosed. The echo transducer is oriented on the subject and generates a series of signal pulses. The return echo on the pulse is then received and a brightness encoded image is produced. The return echo provides location data on the internal structures of the subject including location, motion and speed.

The methods and systems of the present invention are useful in the diagnosis of inflammatory bowel disease (IBD) and in the prognosis of IBD progression and disease complications. With the present invention, it is possible to predict outcome of disease and patients who will have a particular risk of disease complications and/or progression to surgery.

The invention provides a mammary gland auxiliary diagnosis system and method based on fusion depth characteristics, and relates to the technical field of medical image post-processing. The system comprises a preprocessing unit, a lump detection unit, a fusion depth feature extraction unit and a lump diagnosis unit, and is characterized in that an original mammary gland image is preprocessed, and amammary gland region is divided into a plurality of non-overlapped sub-regions; Mammary gland sub-region depth features are extracted by using a convolutional neural network CNN, and US- ELM is usedto cluster the depth characteristics of each sub-region to obtain mammary gland lumps and non-lump regions; a convolutional neural network CNN is used to extract lump depth features, lump morphology and texture features are extracted, and the lump depth, morphology and texture features are fused into a fused depth feature; And the fusion depth features are learned by using an extreme learning machine (ELM) to finally obtain benign and malignant diagnosis results of the lumps. The method is applied to breast auxiliary diagnosis, and accurate diagnosis of breast diseases can be effectively assisted.

The invention discloses a prostatic cancer computer-assisted detection method and system based on multi-parameter MRI and relates to the field of medical image processing. The method includes the following steps that at a training stage, firstly, a clinical case sample is preprocessed, then a prostate region and a focus candidate region are automatically extracted, and then features of the focus candidate region are calculated and used for training a classifier; at a testing stage, the trained classier is used for classifying the features of the focus candidate region automatically extracted from the tested clinical case sample, and a corresponding diagnosis result is obtained and serves as reference comments to be provided for doctors. A series of quantitative indexes and corresponding malignancy probability values are provided for radiologists, and the doctors can be effectively assisted in diagnosing the prostatic cancer through an MRI image.

A diagnostic listening device for a vehicle uses at least one input device to retrieve audible signals from the vehicle. Diagnostic circuitry is coupled to the at least one input device to allow a user to listen to the audible signals retrieved and to isolate out certain frequencies to aid in the diagnosis of the vehicle.

The invention discloses a cervical cancer histopathology image analysis method and device based on depth learning. The method comprises the following steps: acquiring cervical cancer histopathology images and setting image labels for each image; training two convolution neural networks respectively based on the images used for training, and obtaining the two trained convolution neural networks; fixing parameters of the two trained convolutional neural networks, and training the all-connected layer one based on the images used for training, so that the trained all-connected layer one is obtained. The image to be tested is input into the trained classifier, and the two convolution neural networks extract feature vectors from the image respectively. The output feature vectors f1 and f2 are spliced together and input to the full connection layer 1, and the output feature vector f3. The classification result is determined by the element with the largest value in the feature vector f3 The invention can automatically classify and identify the differentiation degree of the original histopathological slice micrograph collected by the doctor and assist the doctor in diagnosis.

A portable camera controller for use with a pipe inspection system is disclosed. The controller may include an onboard display, USB ports, wireless capability, and a built-in transmitter for energizing a pipe-inspection cable for tracing purposes. The camera controller may be configured to support auto-logging and automatic report generation of pipe inspection operations and associated locating operations. The camera controller may be self-grounding using conductive and/or capacitive grounding circuits and an associated transmitter may be used without a separate grounding stake through use of the conductive and/or capacitive grounding circuits.

Using pulsed or continuous-wave sources, broadband electromagnetic energy generally in the 10 MHz to 300 GHz range is applied through one or a plurality of near-field antennas such as coaxial probe tips. The electromagnetic energy reflected from the surface or transmitted through the near surface of the object (e.g. surface of skin or other tissue or cells) is detected, and the ratio of the test measurement to that from normal tissue is recorded and presented to determine the degree of dielectric contrast, hence inhomogeneity. This degree of contrast is used both on its own and in conjunction with simultaneously acquired optical images to map the boundary of an organ inhomogeneity such as a tumor. The bundle of antennas may be scanned over a surface of the object on a pixel-by-pixel basis to determine the spectra of the sample on a pixel-by-pixel basis, allowing a two dimensional display of the absorption spectra to be provided.

The present application generally relates communications and hazard avoidance within a monitored driving environment. More specifically, the application teaches a system and method for improved target object detection in a vehicle equipped with a laser detection and ranging LIDAR system by transmitting a light pulse for a known duration and comparing a duration of the received pulse to the transmitted pulse in order to determine an orientation of a surface of a target.

An in vitro diagnostic (IVD) device is used to detect the presence of and/or severity of neural injuries or neuronal disorders in a subject. The IVD device relies on an immunoassay which identifies biomarkers that are diagnostic of neural injury and/or neuronal disorders in a biological sample, such as whole blood, plasma, serum, and/or cerebrospinal fluid (CSF). An IVD device may measure one or more of several neural specific markers in a biological sample and output the results to a machine readable format, either to a display device or to a storage device internal or external to the IVD.

There is provided a port sealing cartridge that allows for insertion of a catheter or other medical device into an endotracheal tube and thence the patient's lungs through an available access port. The port sealing cartridge has a primary and a secondary seal or collar that sequentially provide a pressure seal as a medical device is inserted through them and into the system. An optional tethered dust cover may also be used on the proximal end of the port seal cartridge. The port seal cartridge may desirably be fitted with a quick-connection so that it may be easily removed, disposed of and replaced. The port seal may be used for access to a patient's lungs with a bronchoalveolar catheter, bronchoscope or other medical device for treatment or sampling of the respiratory tract.