54 results about "Functional measurements" patented technology

Multifunctional guidewire assemblies and system for analyzing anatomical and functional parameters are described. Using a single guidewire assembly, functional and anatomical measurements and identification of lesions may be made. Functional measurements such as pressure may be obtained with a pressure sensor on the guidewire while anatomical measurements such as luminal dimensions may be obtained by utilizing an electrode assembly along the guidewire. The vascular network and stenosed lesions may be modeled into an equivalent electrical network and solved based on the measured parameters to obtain unknown parameters of the electrical network. Several treatment plan options may be constructed where each plan may correspond to the treatment of a subset of particular lesions. The anatomical outcome for each of the treatment plans may be estimated and the equivalent modified electrical parameters may be determined. Then, each of the electrical networks for each plan may be solved to determine the functional outcome for each treatment plan and the outcomes for all treatment plans may be presented to a physician.

Disclosed are methods and data on determining response to a drug or other therapy prior to administration by obtaining a direct neurocognitive brain function measurement; obtaining an indirect neurocognitive brain function measurement; and, assessing the direct neurocognitive brain function measurement and the indirect neurocognitive brain function measurement collectively to obtain a response determination preferably the predictive value of the collective assessment is greater than a predictive value obtained from the separate predictive values for the direct and indirect measurements. Also disclosed are methods of determining dosage of a drug comprising administering a drug; comprising obtaining a direct neurocognitive brain function measurement; obtaining an indirect neurocognitive brain function measurement; and, assessing the direct neurocognitive brain function measurement and the indirect neurocognitive brain function measurement collectively to obtain a dosage, preferably the predictive value of the collective assessment is greater than a predictive value obtained from the separate predictive values for the direct and indirect measurements; optionally, additional cycles of obtaining and assessing indirect and direct measurements are performed.

Implantable medical device systems and methods for measuring a body parameter utilizing an implantable functional pressure sensor and a fixed reference sensor, wherein the reference sensor compensates for drift of all other components in the measurement system other than the functional sensor. The reference sensor provides a basis for comparison to determine if and to what extent the electronic components, for example, have drifted over time, and thus provides a basis for correcting functional measurements and improving long term measurement accuracy.

Methods and systems for performing an interventional procedure are presented. A first set of pulses are delivered using at least one image sensor simultaneously with a second set of pulses delivered using at least one flow sensor disposed in an integrated interventional device towards a target region in a subject. Further, structural information corresponding to the target region at a designated time is determined using imaging signals received in response to the first sets of pulses. Additionally, volumetric information corresponding to the target region at the designated time is determined using signals received in response to the second sets of pulses. Moreover, the structural and volumetric information is processed using a determined model to compute one or more diagnostic parameters corresponding to the target region. A diagnostic assessment of the target region is then provided based on the computed diagnostic parameters.

A forecasting engine and method assists in rapidly and accurately forecasting occurrences of identifiable events and/or results based on signature and/or pattern matching. The present invention derives signature for event-types based on a comparison of actual event data with pre-established representational surfaces. The surfaces represent functional measurements and analysis associated with elements of the geospatial boundary being considered. The present invention provides highly refined modeling processes to assist in quickly focusing on the proper measurement type and/or variable type, and detailing analysis around the most relevant factors. In this way, the present invention allows for more rapid and more accurate assessment determinations. In one aspect, the present invention provides a decision support system for assisting in the determination of potentially successful commercial locations. In another embodiment, the present invention provides a centralized portal capable of assessing multiple problems simultaneously.

There is provided a system and method for evaluation of cardiac images, wherein enhanced evaluation of myocardial mechanical function is possible. The system and methods include methods for segmentation of cardiac images obtained via cMRI or other imaging modalities, wherein the segmentation allows for fusion of these images with images obtained from a different modality such as echocardiogram and/or LE-MRI. The fused images may then be used to provide a diagnosis or a recommendation for a procedure, such as implantation of a cardiac pacemaker. Moreover, follow-up evaluation may be done using only one imaging modality, such as echocardiogram, for example. The system and methods disclosed herein further provide additional post-processing, such as computation of mid-myocardial strain, which can further be useful in diagnosis and planning.

A gear transmission multidisciplinary reliability analysis method considering cognition and random uncertainty in an actual engineering design process belongs to the technical field of design optimization and reliability design of mechanical products and includes quantizing the cognition and the random uncertainty of gear modules, tooth number, tooth surface width, distance between bearings and gear diameter caused by the factors of processing, assembly, material characteristics, applied load, external environment and the like, establishing multidisciplinary reliability integrated evaluation index, integrating of the reliability analysis method and a multidisciplinary design optimization strategy, decoupling of a multidisciplinary reliability analysis process, and being based on a functional measurement method. The gear transmission multidisciplinary reliability analysis method considering the cognition and the random uncertainty provides a comprehensive quantitative method, establishes the multidisciplinary reliability integrated evaluation index which is more conformable to engineering practice, integrates a traditional reliability analysis method and the multidisciplinary design optimization strategy, and provides a new thought for reliability analysis of gear transmission products.

Changes in event, threat and result patterns assist in forecasting subsequent occurrences. The present invention derives signature for event-types based on a comparison of actual event data with pre-established representational surfaces. The surfaces represent functional measurements and analysis associated with elements of the geospatial boundary being considered. Comparing newly obtained event, result and threat data with previously stored signatures facilitates change detection.

Multifunctional guidewire assemblies and system for analyzing anatomical and functional parameters are described. Using a single guidewire, functional and anatomical measurements and identification of lesions may be made. Functional measurements such as pressure may be obtained with a pressure sensor on while anatomical measurements such as luminal dimensions may be obtained by utilizing an electrode. The vascular network and stenosed lesions may be modeled into an equivalent electrical network and solved based on the measured parameters. Treatment plan options may be constructed where each plan may correspond to the treatment of a subset of particular lesions. The anatomical outcome for each treatment plans may be estimated and the equivalent modified electrical parameters may be determined. Then, each of the electrical networks for each plan may be solved to determine the functional outcome for each treatment plan and the outcomes for all treatment plans may be presented to a physician.

The invention belongs to the technical field of a power system, in particular to an intelligent transformation method of a conventional substation. The intelligent transformation method comprises the following steps of additionally arranging a monitoring system based on a panorama data integrated information platform in a traditional station control layer; unifiedly applying IEC61850 stipulation by a full-station communication protocol; substituting a traditional main transformer protection device in a separation layer by a post-main integrated intelligent protection device; applying a multi-functional measurement and control device by a measurement and control device; applying a mode of a traditional switch and an intelligent terminal to complete intelligent transformation by a switching device; and additionally arranging a one-time device on-line monitoring system in a process layer. By proceeding two aspects of building of a new substation and intelligent transformation on the conventional substation, a three-layer and two-network standard structure of the intelligent substation is taken as a target, and intelligent transformation is carried out on the process layer, the separation layer and a device and the function of the station control layer. By the transformation method, the operation and maintenance cost of the substation can be reduced, resource configuration is optimized, the operating index is improved, and the transformation method is profound significance to the power system.

The invention discloses a multi-functional instrument with a safety protection device, which comprises an upper casing, a lower casing and an instrument main body, wherein the upper casing and the lower casing are mutually clamped and connected to form a cavity body with a front opening and a back opening, the instrument main body is installed in the cavity body, and a multimeter input interface and a network line input interface are arranged on the instrument main body. The multi-functional instrument also comprises a safety protection device which is installed on the instrument main body ina removable way and is provided with two installation positions. When the safety protection device is positioned at a first installation position, the multimeter input interface is communicated with the outside, and the network line input interface is blocked; when the safety protection device is positioned at a second installation position, the network line input interface is communicated with the outside, and the multimeter input interface is blocked. The multi-functional measurement instrument with the safety protection device conforms to the relevant safety certification standard, preventspotential safety hazard existing in the use process effectively, prolongs the service life of the multi-functional instrument and enhances the use safety.

The present invention relates to a surgical catheter, and more particularly, a balloon catheter having an auxiliary lumen configured to permit the advancement of a functional measurement wire to a treatment site. The auxiliary lumen communicates with a working lumen that is configured to permit the advancement of a guidewire and the functional measurement wire, so that the guidewire and functional measurement wire may selectively be advanced to the treatment site during a surgical procedure.

Certain embodiments include a method and system for measuring and imaging local lung function. The method includes triggering an image scan of at least a lung cross-section of a patient, scanning the lung cross-section during at least one of an inspiration and an expiration of air by the patient to obtain lung image data and measuring a lung function during at least one of an inspiration and an expiration of air by the patient to obtain lung function data. The method may also include performing a preview scan of the patient to identify the lung cross-section for imaging. Additionally, the lung image data and lung function data may be combined for use in diagnosis of the patient. The lung image data and lung function data may also be output. The method may further include processing the lung function data to generate a plot of lung attenuation versus time.

Ultrasound imaging, or ultrasonography, is a convenient imaging modality for diagnostic purposes. During procedures requiring visualization, the user coordinates the movement of the transducer through the manual selection of an appropriate representation on the screen. Ultrasound may also be employed for functional measurements. Typically, the measurement requires the manual selection of target planes, lines, or volumes where the measurement is to be performed. Therapeutic applications of ultrasound are also known in the art. Such applications typically employ higher energies, and therefore inaccuracies in positioning may result in damage to surrounding tissues. The invention provides a system and method for repeated determination of a first vector between a reference structure comprised in an anatomical volume and a medical imaging transducer configured to provide imaging data of the anatomical volume. The invention provides an automated tracking system of the reference structure, requiring that the user only selects the reference structure.

The invention discloses a method for movably monitoring electronic equipment in an unattended manner. The method comprises the following steps: (1), setting and establishing mobile terminal equipment and a Bluetooth intelligent universal meter having a two-way communication protocol; (2), controlling the Bluetooth intelligent universal meter to select a corresponding functional measurement channel by the mobile terminal equipment; (3), disconnecting Bluetooth connection between the mobile terminal equipment and the Bluetooth intelligent universal meter, and enabling the Bluetooth intelligent universal meter to enter a continuous recording and measuring mode; and (4), re-connecting the mobile terminal equipment with the Bluetooth intelligent universal meter, and sending recorded data to the mobile terminal equipment by the Bluetooth intelligent universal meter. The invention further discloses a monitoring system. A display screen and a rotary knob are unnecessary in the Bluetooth intelligent universal meter in the invention; the mobile terminal equipment controls the Bluetooth intelligent universal meter to select the corresponding functional measurement channel; and measured data is displayed on the mobile terminal equipment in the form of a report form or a graph.

The invention provides a multi-functional measurement and control terminal which comprises a machine box. A containing cavity is formed in the machine body, wherein a cover plate is arranged on the containing cavity. The containing cavity is provided with a backboard and a plurality of slots from inside to outside in sequence, wherein the plurality of slots are formed in the backboard, a plurality of board plugs are connected with the slots respectively in parallel in an inserted mode, and all the board plugs can be connected to the slots respectively in a hot plugging mode. Due to the adoption of the modular design, the multi-functional measurement and control terminal can meet specific requirements of different spots and has good expandability.

The invention discloses a dynamic loading platform for an in-vitro knee joint, and an application method thereof. The dynamic loading platform comprises an experiment table, a mechanical arm system, amotion capture system, a non-contact full-field strain measurement system and an industrial personal computer; the motion capture system establishes a three-dimensional space coordinate system of a knee joint sample by setting mark points, and acquires space position data of the mark points in real time when the knee joint sample performs continuous functional motion; the non-contact full-field strain measurement system obtains displacement data and strain distribution of speckles on the surface of a knee joint sample by using a digital image correlation technology based on a binocular visionprinciple; MATLAB software is arranged in the industrial personal computer, and the tail end of a mechanical arm is controlled to drive the knee joint sample to perform functional action; spatial position data of the mark points are received, and a stability evaluation report of the knee joint sample is obtained; and speckle displacement data are received, and a strain analysis report is obtainedthrough a digital image related technology. According to the invention, mechanical test and motion function test requirements are met, the experiment time cost and learning cost are reduced, and theexperiment efficiency is improved.

The invention provides a multi-functional measurement and control reconnaissance aircraft system. The multi-functional measurement and control reconnaissance aircraft system comprises a measurement and control reconnaissance aircraft and is characterized by further comprising a wireless image pickup transmission subsystem, a low-altitude ranging subsystem, a wireless remote control weapon launching subsystem and an upper computer subsystem. Compared with the prior art, the multi-functional measurement and control reconnaissance aircraft system has the beneficial effects that the wireless image pickup transmission subsystem is adopted to transmit scenes under a dangerous environment condition or large-scale outdoor activities to the upper computer subsystem in real time, and the upper computer subsystem also can be used for monitoring chaos scenes in the crowded people, and the resource waste caused by the fact that a manned helicopter is adopted for high-altitude shooting is greatly reduced; the multi-functional measurement and control reconnaissance aircraft system adopts the low-altitude ranging subsystem to measure the height of one certain object conveniently when in low-altitude operation; and the multi-functional measurement and control reconnaissance aircraft system is also provided with a weapon launching device.

A method for processing echocardiography data to enable automatic functional measurements based on cardiac ultrasound images as an input, including (i) classification of the cardiac ultrasound images to ensure that relevant images are passed on to the next steps, optionally utilising a first neural network, such as a convolutional neural network, (ii) segmentation and semantic partitioning of the left ventricle (LV) myocardium to extract relevant parts of the image, optionally by using a second neural network, (iii) regional motion estimates to determine a mapping of displacements in the extracted parts of the image and to output estimated tissue motion vectors for the extracted parts of the image, optionally using a third neural network, and (iv) fusion of measurements via state estimation applied to the tissue motion vectors and thereby incorporating a temporal domain to produce data showing variation of the estimated measurements over time.