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993results about "Ultrasonic/sonic/infrasonic data transmission" patented technology

Systems and methods for communicating with implantable devices

Systems and methods for communicating with an implant within a patient's body using acoustic telemetry includes an external communications device attachable to the patient's skin. The device includes an acoustic transducer for transmitting acoustic signals into the patient's body and / or for receiving acoustic signals from the implant. The device includes a battery for providing electrical energy to operate the device, a processor for extracting data from acoustic signals received from the implant, and memory for storing the data. The device may include an interface for communicating with a recorder or computer, e.g., to transfer data from the implant and / or to receive instructions for controlling the implant. The device is secured to the patient's skin for controlling, monitoring, or otherwise communicating with the implant, while allowing the patient to remain mobile.
Owner:REMON MEDICAL TECH

Systems and methods for non-invasive detection and monitoring of cardiac and blood parameters

Methods and systems for long term monitoring of one or more physiological parameters such as respiration, heart rate, body temperature, electrical heart activity, blood oxygenation, blood flow velocity, blood pressure, intracranial pressure, the presence of emboli in the blood stream and electrical brain activity are provided. Data is acquired non-invasively using ambulatory data acquisition techniques.
Owner:UNIV OF WASHINGTON +1

Implantable thermal treatment method and apparatus

A long-term implantable ultrasound therapy system and method is provided that provides directional, focused ultrasound to localized regions of tissue within body joints, such as spinal joints. An ultrasound emitter or transducer is delivered to a location within the body associated with the joint and heats the target region of tissue associated with the joint from the location. Such locations for ultrasound transducer placement may include for example in or around the intervertebral discs, or the bony structures such as vertebral bodies or posterior vertebral elements such as facet joints. Various modes of operation provide for selective, controlled heating at different temperature ranges to provide different intended results in the target tissue, which ranges are significantly effected by pre-stressed tissues such as in-vivo intervertebral discs. In particular, treatments above 70 degrees C., and in particular 75 degrees C., are used for structural remodeling, whereas lower temperatures achieves other responses without appreciable remodeling.
Owner:RGT UNIV OF CALIFORNIA

Noninvasive measurement of chemical substances

Utilization of a contact device placed on the eye in order to detect physical and chemical parameters of the body as well as the non-invasive delivery of compounds according to these physical and chemical parameters, with signals being transmitted continuously as electromagnetic waves, radio waves, infrared and the like. One of the parameters to be detected includes non-invasive blood analysis utilizing chemical changes and chemical products that are found in the conjunctiva and in the tear film. A transensor mounted in the contact device laying on the cornea or the surface of the eye is capable of evaluating and measuring physical and chemical parameters in the eye including non-invasive blood analysis. The system utilizes eye lid motion and / or closure of the eye lid to activate a microminiature radio frequency sensitive transensor mounted in the contact device. The signal can be communicated by wires or radio telemetered to an externally placed receiver. The signal can then be processed, analyzed and stored. Several parameters can be detected including a complete non-invasive analysis of blood components, measurement of systemic and ocular blood flow, measurement of heart rate and respiratory rate, tracking operations, detection of ovulation, detection of radiation and drug effects, diagnosis of ocular and systemic disorders and the like.
Owner:GEELUX HLDG LTD

System and method supporting imaging and monitoring applications

The present invention is directed to a system and method in which a portable medical device supports simultaneous imaging and monitoring applications. This portable device includes an external controller for receiving a PDA / MDA via a communication bus. An ultrasound scan head also is preferably attached to the external controller via an interconnect. In operation, real-time video feed of the patient may be acquired using the device and then displayed on the PDA / MDA. Using the ultrasound scan head in conjunction with the external controller, images may be acquired and displayed on the PDA / MDA, and vital sign monitoring of a single patient or multiple patients may be performed. Video feed, images and / or monitoring information may be transferred to a remote expert for review and analysis on the remote expert's communication device.
Owner:FUJIFILM SONOSITE

System and Method for Acoustic Data Transmission

Embodiments of the present invention are directed to acoustic data transmission using a spreading code. A system for acoustic data transmission includes an ingestible capsule and an acoustic receiver. The ingestible capsule includes a modulator, a spreader, and an acoustic transmitter. The modulator modulates data according to a modulation scheme. The spreader spreads the modulated data according to a spreading code. The acoustic transmitter acoustically transmits the modulated and spread data through a body of an animal. The acoustic receiver includes an acoustic transducer a de-spreader and a demodulator. The acoustic transducer receives the acoustically transmitted signal and forms an electrical signal therefrom. The de-spreader de-spreads the received signal in accordance with the spreading code. The demodulator demodulates the received and de-spread signal in accordance with the modulation scheme, wherein a phase of the spreading code is synchronized with the received signal whereby a signal-to-noise ratio of the received signal is increased.
Owner:INNURVATION

High frequency array ultrasound system

A system for acquiring an ultrasound signal comprises a signal processing unit adapted for acquiring a received ultrasound signal from an ultrasound transducer having a plurality of elements. The system is adapted to receive ultrasound signals having a frequency of at least 20 megahertz (MHz) with a transducer having a field of view of at least 5.0 millimeters (mm) at a frame rate of at least 20 frames per second (fps). The signal processing can further produce an ultrasound image from the acquired ultrasound signal. The transducer can be a linear array transducer, a phased array transducer, a two-dimensional (2-D) array transducer, or a curved array transducer.
Owner:SUNNYBROOK HEALTH SCI CENT +1

Ultrasound diagnostic apparatus and ultrasound probe

An ultrasound diagnostic apparatus includes an ultrasound probe with transducers, memory storing probe identification information and binary state generation unit generating a binary electrical state corresponding to a probe identifier, probe identifier conversion unit converting the electrical state into the probe identifier, read unit reading the probe identification information from the memory, determination unit determining consistency between the probe identifier after conversion and the probe identification information read from the memory, and warning output unit outputting a predetermined warning if the probe identifier is inconsistent with the probe identification information.
Owner:CANON MEDICAL SYST COPRPORATION

Contact lens for collecting tears and detecting analytes for determining health status, ovulation detection, and diabetes screening

Utilization of a contact device placed on the eye in order to detect physical and chemical parameters of the body as well as the non-invasive delivery of compounds according to these physical and chemical parameters, with signals being transmitted continuously as electromagnetic waves, radio waves, infrared and the like. One of the parameters to be detected includes non-invasive blood analysis utilizing chemical changes and chemical products that are found in the conjunctiva and in the tear film. A transensor mounted in the contact device laying on the cornea or the surface of the eye is capable of evaluating and measuring physical and chemical parameters in the eye including non-invasive blood analysis. The system utilizes eye lid motion and / or closure of the eye lid to activate a microminiature radio frequency sensitive transensor mounted in the contact device. The signal can be communicated by wires or radio telemetered to an externally placed receiver. The signal can then be processed, analyzed and stored. Several parameters can be detected including a complete non-invasive analysis of blood components, measurement of systemic and ocular blood flow, measurement of heart rate and respiratory rate, tracking operations, detection of ovulation, detection of radiation and drug effects, diagnosis of ocular and systemic disorders and the like.
Owner:GEELUX HLDG LTD

Medical diagnostic ultrasound instrument with ECG module, authorization mechanism and methods of use

A handheld ultrasound instrument is disclosed having enhanced diagnostic modes including pulse / continuous wave Doppler, time-motion analysis, spectral analysis and tissue harmonic imaging. An external electrocardiograph (ECG) recording unit is also disclosed. The ECG unit is adaptable to be used with the handheld ultrasound instrument to provide for ECG monitoring while performing an ultrasound scan in B-mode, Doppler, color Doppler, M-mode, and CW / PW mode. The enhanced handheld ultrasound instrument further includes a security mechanism allowing any combination of the diagnostic modes to be enabled by the manufacturer, and later to enable or disable any one or group of the diagnostic modes. The invention also discloses a method for a manufacturer to maintain a database of handheld ultrasound instrument capabilities after the instruments enter the stream of commerce.
Owner:FUJIFILM SONOSITE

Optical-acoustic imaging device

The present invention is a guide wire imaging device for vascular or non-vascular imaging utilizing optic acoustical methods, which device has a profile of less than 1 mm in diameter. The ultrasound imaging device of the invention comprises a single mode optical fiber with at least one Bragg grating, and a piezoelectric or piezo-ceramic jacket, which device may achieve omnidirectional (360°) imaging. The imaging guide wire of the invention can function as a guide wire for vascular interventions, can enable real time imaging during balloon inflation, and stent deployment, thus will provide clinical information that is not available when catheter-based imaging systems are used. The device of the invention may enable shortened total procedure times, including the fluoroscopy time, will also reduce radiation exposure to the patient and to the operator.
Owner:PHYZHON HEALTH INC

Three Dimensional Mapping Display System for Diagnostic Ultrasound Machines

An automated three dimensional mapping and display system for a diagnostic ultrasound system is presented. According to the invention, ultrasound probe position registration is automated, the position of each pixel in the ultrasound image in reference to selected anatomical references is calculated, and specified information is stored on command. The system, during real time ultrasound scanning, enables the ultrasound probe position and orientation to be continuously displayed over a body or body part diagram, thereby facilitating scanning and images interpretation of stored information. The system can then record single or multiple ultrasound free hand two-dimensional (also “2D”) frames in a video sequence (clip) or cine loop wherein multiple 2D frames of one or more video sequences corresponding to a scanned volume can be reconstructed in three-dimensional (also “3D”) volume images corresponding to the scanned region, using known 3D reconstruction algorithms. In later examinations, the exact location and position of the transducer can be recreated along three dimensional or two dimensional axis points enabling known targets to be viewed from an exact, known position.
Owner:METRITRACK

Rotational intravascular ultrasound probe with an active spinning element

An intravascular ultrasound probe is disclosed, incorporating features for utilizing an advanced transducer technology on a rotating transducer shaft. In particular, the probe accommodates the transmission of the multitude of signals across the boundary between the rotary and stationary components of the probe required to support an advanced transducer technology. These advanced transducer technologies offer the potential for increased bandwidth, improved beam profiles, better signal to noise ratio, reduced manufacturing costs, advanced tissue characterization algorithms, and other desirable features. Furthermore, the inclusion of electronic components on the spinning side of the probe can be highly advantageous in terms of preserving maximum signal to noise ratio and signal fidelity, along with other performance benefits.
Owner:VOLCANO CORP

Method and apparatus for knowledge based diagnostic imaging

A knowledge based diagnostic imaging system, comprising diagnostic equipment for analyzing a patient to obtain a new patient data set containing at least one of MR data, CT data, ultrasound data, x-ray data, SPECT data and PET data. The diagnostic equipment automatically analyzes the new patient data set with respect to a physiologic parameter of the patient to obtain a patient value for said physiologic parameter. A database containing past patient data sets for previously analyzed patients. The past patient data sets contain data indicative of the physiologic parameter with respect to previously analyzed patients. A network interconnects the diagnostic equipment and the database to support access to the past patient data sets.
Owner:GE MEDICAL SYST GLOBAL TECH CO LLC

Interconnectable ultrasound transducer probes and related methods and apparatus

Ultrasound devices and methods are described, including a repeatable ultrasound transducer probe having ultrasonic transducers and corresponding circuitry. The repeatable ultrasound transducer probe may be used individually or coupled with other instances of the repeatable ultrasound transducer probe to create a desired ultrasound device. The ultrasound devices may optionally be connected to various types of external devices to provide additional processing and image rendering functionality.
Owner:BFLY OPERATIONS INC

Portable ultrasound imaging data

A portable ultrasound imaging system includes a scan head coupled by a cable to a portable battery-powered data processor and display unit. The scan head enclosure houses an array of ultrasonic transducers and the circuitry associated therewith, including pulse synchronizer circuitry used in the transmit mode for transmission of ultrasonic pulses and beam forming circuitry used in the receive mode to dynamically focus reflected ultrasonic signals returning from the region of interest being imaged.
Owner:TERATECH CORP

Reflective ultrasound technology for dermatological treatments

Embodiments of a dermatological cosmetic treatment and imaging system and method can include use of transducer and a reflective surface to simultaneously produce multiple cosmetic treatment zones in tissue. The system can include a hand wand, a removable transducer module, a control module, a graphical user interface and / or a parabolic reflector. In some embodiments, the cosmetic treatment system may be used in cosmetic procedures, including brow lifts, fat reduction, sweat reduction, and treatment of the décolletage. Skin tightening, lifting and amelioration of wrinkles and stretch marks are provided.
Owner:GUIDED THERAPY SYSTEMS LLC

Ultrasound Measurement System and Method

An ultrasound measurement system including a handheld display and processing means, an ultrasound transducer, a processing means of a substantially similar weight to the handheld display and processing means, and a transmission cable interconnecting the handheld display and processing means with the ultrasound transducer and processing means, the cable being of sufficient length to provide a means to mechanically locate the system around the neck of a user.
Owner:SIGNOSTICS LTD

User interface for ultrasound system

A user interface for an ultrasound system is provided. The ultrasound system includes the user interface having at least one user control member and a display having a plurality of virtual display elements displayed thereon when a virtual pointer is positioned over an image displayed on the display. A function controlled by the at least one user control member is determined based on a selected one of the plurality of virtual display elements.
Owner:GENERAL ELECTRIC CO

Continuous field tomography

InactiveUS20080183072A1Easy to measureEasily propagate through tissueCatheterHeart stimulatorsMedicineSubject matter
Methods for evaluating motion of a tissue, such as of a cardiac location, e.g., heart wall, via continuous field tomography are provided. In the subject methods, a continuous field (e.g., an electrical, mechanical, electro-mechanical, or other field) sensing element is stably associated with the tissue location. A property of the applied continuous field is detected with the sensing element to evaluate movement of the tissue location. Also provided are systems, devices and related compositions for practicing the subject methods. The subject methods and devices find use in a variety of different applications, including cardiac resynchronization therapy.
Owner:PROTEUS DIGITAL HEALTH INC

External and Internal Ultrasound Imaging System

An ultrasound imaging system includes a catheter-based ultrasound transducer, an external ultrasound transducer and a compact ultrasound unit including an isolation circuit, an ultrasound signal generator, and a beam former within a single unit. The ultrasound unit may include circuitry and software to enable simultaneous imaging by both transducers. The isolation circuit may limit unintended, leakage current from the ultrasound system through the transducer array of the ultrasound system.
Owner:ST JUDE MEDICAL ATRIAL FIBRILLATION DIV

Tablet ultrasound system

Exemplary embodiments provide systems and methods for portable medical ultrasound imaging. Preferred embodiments utilize a tablet touchscreen display operative to control imaging and display operations without the need for using traditional keyboards or controls. Certain embodiments provide ultrasound imaging system in which the scan head includes a beamformer circuit that performs far field sub array beamforming or includes a sparse array selecting circuit that actuates selected elements. Exemplary embodiments also provide an ultrasound engine circuit board including one or more multi-chip modules, and a portable medical ultrasound imaging system including an ultrasound engine circuit board with one or more multi-chip modules. Exemplary embodiments also provide methods for using a hierarchical two-stage or three-stage beamforming system, three dimensional ultrasound images which can be generated in real-time.
Owner:TERATECH CORP

System for remote evaluation of ultrasound information obtained by a programmed application-specific data collection device

A system which includes at least one ultrasound data collection device which is programmable to carry out a specific ultrasound procedure on a selected part of a human body of a patient. The resulting ultrasound data is transmitted via a local server at the site of the data collection device to the internet and from there to a web database server which processes the raw ultrasound data and provides application-specific information, such as a three-dimensional model, which can be used for diagnostic interpretation of the body part imaged by the ultrasound suitable for use in the treatment of the patient.
Owner:DIAGNOSTIC ULTRASOUND

Birth monitoring system

A medical transponder, including an ultrasonic sensor that detects impinging ultrasonic waves and generates electrical signals in response thereto; an electrical connection which receives said signals; and an electromagnetic RF transmitter coupled to said electrical connection and which generates an RF signal in response to said detected waves.
Owner:BARNEV

Transmit and receive interface array for highly integrated ultrasound scanner

An ultrasonic transducer probe having a highly integrated interface circuit array. Low-voltage transmit control signals from the system are transmitted on the system transmit channels via the ultrasound probe cable and into the interface circuit array. These transmit control signals are routed through the interface circuit array using a dense switching matrix. Once the low-voltage transmit control signals reach individual cells within the interface array, they are decoded and used to control local high-voltage pulser circuits to drive individual ultrasound transducer elements made up of selected subelements that are co-integrated with the interface electronics. The interface cell circuitry further comprises a high-voltage transmit / receive switch, which is closed when the high-voltage pulser is transmitting to protect the low-voltage components.
Owner:GENERAL ELECTRIC CO

Apparatus and method for biasing a transducer

An apparatus comprising a capacitive transducer, for example a MEMS microphone. A first voltage generator is connected to receive a first voltage (VDD*) and generate a second voltage (VCP) for biasing the capacitive transducer. A control circuit is adapted to, in use, control the first voltage (VDD*) based on a calibration value, wherein a different calibration value would lead to a different first voltage level and the calibration value is set such that an input signal of known amplitude produces an output signal of predetermined amplitude.
Owner:CIRRUS LOGIC INC

Method and system for PDA-based ultrasound system

A method and system are disclosed for a compact, inexpensive ultrasound system using an off-the-shelf personal digital assistant (PDA) device interfacing to a hand-held probe assembly through a standard digital interface. The hand-held probe assembly comprises a detachable transducer head attached to a beamforming module that performs digital beamforming. The PDA runs Windows applications and displays menus and images to a user. The PDA also runs ultrasound data processing software to support a plurality of imaging modes. An internal battery is provided in the PDA to power the system. The transducer head is detachable from the beamforming module.
Owner:GE MEDICAL SYST GLOBAL TECH CO LLC

Systems and methods for using dynamic vascular assessment to improve vascular stent placement, application, design and marketing

The invention relates to systems and methods for assessing blood flow in single or multiple vessels and segments, for assessing vascular health, for conducting clinical trials, for screening therapeutic interventions for effect, for assessing risk factors, for evaluating intracranial pressure and for analyzing the results in a defined manner. The invention enables direct monitoring of therapies, substances and devices on blood vessels, especially those of the cerebral vasculature. Relevant blood flow parameters include mean flow velocity, systolic acceleration, and pulsatility index. Measurement and analysis of these parameters, and others, provides details regarding the vascular health of individual and multiple vessels and a global analysis of an individual's overall vascular health. The invention is applicable as both a system and method for monitoring and improving the design, performance, marketing and use of vascular stents. In particular, the invention enables DVA-assisted stenting procedures, including both pre-operative and post-operative management.
Owner:NEW HEALTH SCI
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