116 results about "Ultra sound" patented technology

Proppants having added functional properties are provided, as are methods that use the proppants to track and trace the characteristics of a fracture in a geologic formation. Information obtained by the methods can be used to design a fracturing job, to increase conductivity in the fracture, and to enhance oil and gas recovery from the geologic formation. The functionalized proppants can be detected by a variety of methods utilizing, for example, an airborne magnetometer survey, ground penetrating radar, a high resolution accelerometer, a geophone, nuclear magnetic resonance, ultra-sound, impedance measurements, piezoelectric activity, radioactivity, and the like. Methods of mapping a subterranean formation are also provided and use the functionalized proppants to detect characteristics of the formation.

Ultrasonic, sonic or vibratory energy, delivered non-invasively, minimally invasively or invasively (e.g. surgically), is utilized to provide direct cleaning action at or to the location of the implanted device such as a prosthetic heart valve with undesirable deposits of at least some amount thereon or therein. Such ultra-sound energy may be aided by the use of a drug in association or cooperation with the acoustic irradiation. The "cleaning" acoustic energy may optionally be delivered under the guidance of an imaging modality and may be delivered in a timed or gated manner such that the valve occluders or leaflets are in a preferred position (assuming they are functioning) during exposures.

Systems, apparatuses and methods are described for integrating an electronic metrology sensor with precision production equipment such as computer numerically controlled (CNC) machines. For example, a laser distance measuring sensor is used. Measurements are taken at a relatively high sample rate and converted into a format compatible with other data generated or accepted by the CNC machine. Measurements from the sensor are synchronized with the position of the arm of the machine such as through the use of offsets. Processing yields a detailed and highly accurate three-dimensional map of a workpiece in the machine. Applicable metrology instruments include other near continuously reading non-destructive characterization instruments such as contact and non-contact dimensional, eddy current, ultra-sound, and X-Ray Fluorescence (XRF) sensors. Various uses of measurements include: multiple component matching, correction of machine drift, closed loop control of machines, and verification of product tolerances via substantially complete serialized dimensional quality control.

A trigger point massage therapy device for well-controlled trigger point therapy, suitable for long-term use by a health practitioner with minimal risk of pain or injury, can include a main body with a handle, rubberized grips, a connection pin, that can connect to a pressure point base with a pressure point tip, whereon can further be installed additional pressure point tips in different sizes; a pressure sensor, a step-vibration component, an electro-motor; and additionally heating, ultra sound, electrical stimulation, infrared, and cold laser light components. The device can further include a control unit, which can be used for programming and controlling the functions of the device. Also described is a method for trigger point massage therapy, including measuring a pressure, adjusting the pressure, holding the pressure, rotating / unwinding, vibrating, and increasing the pressure.

A multi-position biopsy guide system and a method of using such biopsy guide system is proposed. The biopsy guide system comprises a 2D matrix ultra-sound transducer (3) and comprises at least one biopsy needle guide (5) adapted for guiding a biopsy needle along a biopsy path (7). Therein, the multi-position biopsy guide system is adapted to controllably guide the biopsy needle along biopsy paths at variable locations with respect to the 2D matrix ultrasound transducer. Preferably, a location of the biopsy needle guide (5) with respect to the matrix ultrasound transducer may be determined and an ultrasound image in an image plane aligned with a biopsy path corresponding to the determined location of the biopsy needle guide may be acquired. Thereby, a biopsy process may be monitored for various locations and orientations of a guided biopsy needle.

A method for producing a model of bone geometry of a volumetric region of a body is provided. The method comprises scanning the volumetric region using ultrasound and acquiring geometric data associated with bones; identifying points derived from a surface of the bones; organizing the points into separate bone entities and transforming the points so as to position the bone entities in accordance with a normalized template. The model may be used for identifying or verifying the identity of a person.

The percutaneous probe, made in MRI-compatible materials, comprises: a body percutaneously inserted into the tissue of a patient's body organ (8) having a region (10) to be analyzed, treated and monitored during a single medical procedure; at least one information collection sensing device (30,33,34); treatment application transducers (30) 360° disposed to emit focused or defocused therapeutic ultra-sound waves. The computerized system comprises a parametrizable command device (50) adapted to simulate then command a generation of the therapeutic ultra-sound waves, and to monitor the treatment by thermal MRI images.

A probe system for measuring fluid flow in a conduit, such as a blood vessel with ultrasound transit time or similar measurement methods. The probe system having a probe body with a space to receive in a secure but detachable fashion a pliable soft insert. The insert has a central lumen or aperture which is sized to securely but detachably fit around a vessel or conduit without squeezing or in any way altering the conduit during application or use. The insert is acoustically matched with the vessel or conduit and fluid flowing therein to thereby minimize distortion or attenuation of ultra sound waves generated to assess flow. In a further aspect a set of inserts with varying sized lumens or apertures are provided to match with vessels or conduits of varying size. The system among other things increases accuracy of flow measurements while minimizing trauma to the vessel or conduit.

PCT No. PCT / DK96 / 00158 Sec. 371 Date Nov. 26, 1997 Sec. 102(e) Date Nov. 26, 1997 PCT Filed Apr. 1, 1996 PCT Pub. No. WO96 / 30394 PCT Pub. Date Oct. 3, 1996The invention relates to the technical application of electromagnetic radiation such as microwaves and radiowaves and application of ultra sound to chain molecules. In particular, the present invention relates to the utilization of topological excitations such as wring, twist and torsional modes, e.g., for generating structure, such as in folding, refolding or renaturation, and denaturation or unfolding of peptides, polypeptides, proteins, and enzymes; for generating changes in molecular affinity; for stimulating drug receptor interactions; and for changing molecular communication, is described. The technique is based on a new understanding of the underlying physical phenomenon and can also be applied to other chain molecules and biologically active biomolecules and tailored polymers such as glucoproteins, antibodies, genomic chain molecules such as DNA and RNA as well as PNA, carbohydrates, and synthetic and natural organic polymers. The invention is especially applicable for solving problems related to inclusion bodies and aggregation when using recombinant DNA and protein engineering techniques. Furthermore, the invention can be utilized in therapeutic treatment and in development and production of pharmaceuticals. The area of applicability ranges from biotechnological industry, food industry, drug industry, pharmacological industry, chemical industry, and concerns, e.g., the treatment of conditions and diseases related to influenza, hepatitis, polio, malaria, borrelia, diabetes, Alzheimer's disease, Creutzfeldt Jakob disease, other prion related diseases, multiple sclerosis, cataract, heart diseases, cancer, and aging.

The present invention relates to an infant supervision device featuring an umbilical cord clamp having a hinge, jaws and a locking mechanism. The present invention also contains a wire or a strip of conducting material that runs through the jaws and the hinge and that forms a current carrying circuit as soon as terminals within the locking mechanism are linked, which occurs when the clamp is closed. The clamp has a first end with a hinge and a second end having a locking mechanism. The locking mechanism contains a sensor, which may be an active or passive transmitter, a receiver or a magnet. The sensor is capable of communicating with an external detection device, and alert child care monitors in an event that the clamp is broken or cut, or if an infant wearing the present invention is carried beyond the secure perimeter covered by the external detection device. The clamp may also be able to send out positioning and health related information to the external detection device by using micro waves, radio waive, ultra-sound waives or by communicating with a wireless network.

The invention relates to preparation of core / shell structural polystyrene / titanium dioxide composite photo catalyst, comprising the steps of: (1) dissolving titanium alkoxide in absolute lower alcohol to be prepared into aqueous alcohol solution of titanium alkoxide with the concentration of titanium alkoxide in the lower alcohol being 0.004-0.100mL / Ml; (2) adding polystyrene microballs into the aqueous alcohol solution of titanium alkoxide to experience ultra-sound and stirring to obtain a uniform mixture; (3) placing a crucible holding, the polystyrene microballs and the aqueous alcohol solution of titanium alkoxide in a closed container, heating the closed container to 70-200 DEG C for heat treatment and preserving temperature for 1-96 hours; washing and drying to obtain the core / shell structural polystyrene / titanium dioxide composite photo catalyst. The photo catalyst prepared by the invention maintains the characteristic of high catalytic activity of titanium dioxide nano crystal grain, and has the photo catalytic activity similar to the photo catalytic activity of nano titanium dioxide prepared by gas phase method in the majority of photo catalysis reactions.

The present invention relates to an ultrasound imaging system (10) for inspecting an object (33) in a volume (32). The ultra-sound imaging system comprises an ultrasound image acquisition probe (14) for acquiring three-dimensional ultrasound images and providing three-dimensional ultrasound image data, comprising a tracking device (25, 27) for tracking a position of the ultrasound image acquisition probe (14) and providing a viewpoint position (128, 130) of the three-dimensional ultrasound images. By this, an improved initialization and improved co-registration and co-segmentation is enabled by providing a plurality of three-dimensional ultrasound images and their respective viewpoint positions (128, 130), and to conduct a segmentation (80) of the object (33) simultaneously out of the plurality of three-dimensional ultrasound images and taking into account the viewpoint positions (128, 130).

The invention relates to location determination apparatus for determining a location of a first object (2) like a catheter within a second object (3) being, for example, the heart of a person. The first object comprises a first ultrasound unit, and a second ultrasound unit (5) is located outside the second object. A location determination unit determines the location of the first object within the second object based on ultra-sound signals transmitted 5 between the first ultrasound unit and the second ultrasound unit. This allows determining the location of the first object within the second object reliably in a way which is an alternative to using a transmission of electrical signals for determining the location and which may lead to an improved accuracy of determining the location.

The present application relates to a method and appliance for low temperature pasteurisation of liquid foods and removal of oxygen gas therefrom, so as to preserve the colour, taste, odour, enzymes, vitamins, antioxidants and other nutrients contained in the food. The principle consists in subjecting the food to a decompression up to 20,000 times lower than the initial pressure, and to rotary or linear acceleration of up to 1,000 times higher than gravity acceleration, simultaneously or in any order. The appliances used can use micro-wave irradiation, ultra-sound and heterogeneous photocatalysis by exposure to white light and / or ultraviolet light on surfaces coated with photocatalytic resins and / or ceramics that contain nanostructured particles as auxiliary means, either in isolation or in combination.

A controlling method for ultra-sound sensor is provided. The method includes the steps of measuring a distance of an obstacle, determining whether the distance is smaller than a distance threshold, and adjusting a driving voltage if the distance is smaller than the distance threshold.

A cheating dummy for repelling deer and similar animals from forbidden site is invented. In addition to cheating ability, the dummy also equipped with sensor for detecting approaching animals and capable of triggering actions such as spreading water toward approaching animals, generating ultra-sound to scare them and even making a gunshot sound to repel them. By combining cheating and scaring functions, the repelling effect is expected to be much better than those devices using only sprinkling water or ultra-sound repelling alone. The cheating dummy is user decoratable by dressing with customized outfits for decoration or increasing cheating ability.

The present invention relates to an improved ultrasound imaging method / technique for speckle reduction / suppression in an ultra sound imaging system in which scan conversion and speckle reduction is performed simultaneously in the scan conversion stage avoiding any kind of conventional interpolation. An improved method for speckle reduction in an ultrasound imaging system and an improved ultra sound imaging system for speckle reduction is provided in the present invention. The method comprises steps of receiving in a processor means raw data samples as an input comprising image signals with noises from a logarithmic amplifier, processing the received image signals for scan conversion and speckle reduction in the processor means so as to get pixel value from the raw data samples and to perform speckle reduction so as to provide speckle filtered output image.

A system is provided that may be used for locating and diagnosing lesions in the human body in vivo. In some embodiments, once the exact position of a lesion is found, a biopsy may be taken from the lesion using e.g. ultra sound techniques for guidance of the biopsy needle. Use of the system drastically reduces the negative biopsy samples compared to currently used “blind sampling” techniques. This reduces patient discomfort and minimizes infections as the number of biopsy samples is reduced. A method and computer-readable medium is also provided.

An ultrasonic transmitter system(s) and method(s) are described having location and tracking capabilities. The transmitter's, by using ultra sound and encoded micro-modulation, are able to provide enhanced longevity and reliability. A maze algorithm is devised that further provides discrimination of false detections, versus true detections, and no detection.

Apparatus comprising an ultrasound ablation system (10), which comprises a reflection-facilitation element (12), configured to be placed at an extramyocardial site of a subject, and to provide an extramyocardial reflective region; and an ultra-sound tool (20), which comprises at least one ultrasound transducer (40) configured to be positioned within a heart chamber of the subject. The ultrasound transducer (40) is configured to ablate myocardial tissue by applying ultrasound energy to the myocardial tissue such that at least a portion of the transmitted energy is reflected by the reflective region onto the myocardial tissue. Other embodiments are also described.

A method of blocking the signal of an RFID tag from being read without consent or knowledge of the owner. A lining or cloth is first made of non-magnetic material containing non-magnetic metal in such concentration as is capable of blocking or attenuating transmission of a signal to or from said Radio Frequency Identification Tag. The lining or cloth is then incorporated into an article of manufacture wherein the article may be used to hold a Radio Frequency identification Tag.Lining for Blocking RFID Tag Signal Making a cloth or lining of non-magnetic material containing non-magnetic metal in such concentration as is capable of blocking or attenuating transmission of a signal to or from a Radio Frequency Identification tag; and incorporating the cloth or lining into an article of manufacture wherein the article may be used to block or attenuate a signal to or from a Radio Frequency Identification Tag.

The invention relates to a cleaning method for optical elements after precise polishing. The method is especially applied to cleaning K9 glass and fused quartz elements processed through polishing platters by classical methods. The cleaning method includes the specific steps that the optical elements taken down from the platters are soaked in gasoline for over 30 minutes, soaked in carbon tetrachloride for two hours, subjected to ultra-sound treatment for 4-10 minutes in the ultrasound frequency of 40 kHz and 120 kHz successively and washed with 35-45 DEG C deionized water for 30-45 seconds; then the elements are subjected to ultrasound cleaning with an ethanol solution for 4-10 minutes and washed with the 35-45 DEG C deionized water for 30-45 seconds; finally, the elements are subjected to ultrasound cleaning with pure water for 4-10 minutes; and the elements are dried and the required products are obtained. The soaking and ultrasound cleaning methods are combined; organic solvents, inorganic solvents and the deionized water are used as media; the efficiency for cleaning up organic contaminants and polishing powder residual particles on the surfaces of the precisely polished elements is high; acidic and alkaline solutions are not involved in the cleaning process, chemical and physical damages to the surfaces of the elements are avoided, and the damage threshold value under ultraviolet laser irradiation is improved.

A phased array ultrasound detecting scanning path optimizing method based on defect detection rate comprises the following steps of dividing a workpiece to be detected into detection areas with the number of N according to distribution characteristics of the positions of defects-easy-to-appear of the workpiece to be detected, enabling thicknesses of detection blocks Fi (i is smaller than or equal to N) to be approximate; S2 of searching for an optimal scanning point of an ultra sound canning probe on each detection block; and S3 of obtaining an optimal scanning path by connecting the optimal scanning points on the detection blocks. The phased array ultrasound detecting scanning path optimizing method based on the defect detection rate can optimize a two-dimensional scanning range in a conventional method to be a scanning line, a walking path of the probe is greatly shortened, working load of data acquisition and data analysis is reduced, and detection efficiency is improved.

The present invention relates to an ultrasound imaging system comprising an ultrasound image acquisition station (46) and a mobile display device (18). When disconnected from the ultrasound image acquisition station (46), the mobile display device (18) may be operated by its own operating system providing general purpose applications to a user. When connected to the ultrasound image acquisition station (46), the hardware of the mobile display device (18) is operated by an ultrasound application dedicated operating system stored on the ultrasound image acquisition station (46). By this, a low weight and flexible to use ultra sound imaging system may be provided.