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1913 results about "Radiography" patented technology
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Radiography is an imaging technique using X-rays, gamma rays, or similar ionizing radiation and non-ionizing radiation to view the internal form of an object. Applications of radiography include medical radiography ("diagnostic" and "therapeutic") and industrial radiography. Similar techniques are used in airport security (where "body scanners" generally use backscatter X-ray). To create an image in Conventional Radiography, a beam of X-rays is produced by an X-ray generator and is projected toward the object. A certain amount of the X-rays or other radiation is absorbed by the object, dependent on the object's density and structural composition. The X-rays that pass through the object are captured behind the object by a detector (either photographic film or a digital detector). The generation of flat two dimensional images by this technique is called projectional radiography. In computed tomography (CT scanning) an X-ray source and its associated detectors rotate around the subject which itself moves through the conical X-ray beam produced. Any given point within the subject is crossed from many directions by many different beams at different times. Information regarding attenuation of these beams is collated and subjected to computation to generate two dimensional images in three planes (axial, coronal, and sagittal) which can be further processed to produce a three dimensional image.
Spot-size effect reduction
InactiveUS7418078B2Reduce adverse effectsImprove image qualityRadiation/particle handlingTomographyX-rayRadiography
Owner:SIEMENS MEDICAL SOLUTIONS USA INC
Methods and apparatus for forming shaped axial bores through spinal vertebrae
InactiveUS6740090B1Easy to understandInternal osteosythesisBone implantSpinal CurvaturesSpinal implant
One or more shaped axial bore extending from an accessed posterior or anterior target point are formed in the cephalad direction through vertebral bodies and intervening discs, if present, in general alignment with a visualized, trans-sacral axial instrumentation / fusion (TASIF) line in a minimally invasive, low trauma, manner. An anterior axial instrumentation / fusion line (AAIFL) or a posterior axial instrumentation / fusion line (PAIFL) that extends from the anterior or posterior target point, respectively, in the cephalad direction following the spinal curvature through one or more vertebral body is visualized by radiographic or fluoroscopic equipment. Preferably, curved anterior or posterior TASIF axial bores are formed in axial or parallel or diverging alignment with the visualized AAIFL or PAIFL, respectively, employing bore forming tools that can be manipulated from proximal portions thereof that are located outside the patient's body to adjust the curvature of the anterior or posterior TASIF axial bores as they are formed in the cephalad direction. Further bore enlarging tools are employed to enlarge one or more selected section of the anterior or posterior TASIF axial bore(s), e.g., the cephalad bore end or a disc space, so as to provide a recess therein that can be employed for various purposes, e.g., to provide anchoring surfaces for spinal implants inserted into the anterior or posterior TASIF axial bore(s).
Owner:MIS IP HLDG LLC
Methods and apparatus for forming curved axial bores through spinal vertebrae
One or more curved axial bore is formed commencing from an anterior or posterior sacral target point and cephalad through vertebral bodies in general alignment with a visualized, trans-sacral axial instrumentation / fusion (TASIF) line in a minimally invasive, low trauma, manner. An anterior axial instrumentation / fusion line (AAIFL) or a posterior axial instrumentation / fusion line (PAIFL) that extends from the anterior or posterior target point, respectively, in the cephalad direction following the spinal curvature through one or more vertebral body is visualized by radiographic or fluoroscopic equipment. Generally curved anterior or posterior TASIF axial bores are formed in axial or parallel or diverging alignment with the visualized AAIFL or PAIFL, respectively. The anterior and posterior TASIF axial bore forming tools can be manipulated from proximal portions thereof to adjust the curvature of the anterior or posterior TASIF axial bores as they are formed in the cephalad direction. The boring angle of the distally disposed boring member or drill bit can be adjusted such that selected sections of the generally curved anterior or posterior TASIF axial bores can be made straight or relatively straight, and other sections thereof can be made curved to optimally traverse vertebral bodies and intervening disc, if present.
Owner:MIS IP HLDG LLC
Custom radiographically designed cutting guides and instruments for use in total ankle replacement surgery
ActiveUS20100262150A1High precisionSimplify operating proceduresWrist jointsAnkle jointsTibiaSacroiliac joint
A system comprised of custom radiographically designed tibial and talar cutting guides, a tibial reaming guide and bit, and instrumentalities for use in total ankle replacement surgery and a computer-based system and method for making the custom radiographically designed tibial and talar cutting guides.
Owner:LIAN GEORGE JOHN
Spinal nucleus replacement implants and methods
InactiveUS20050154463A1Extended range of motionHelp positioningBone implantSurgeryReplacement implantRadiography
Improved nucleus pulposus implants are provided to better accommodate the disc nucleus space, to provide a modified compressive modulus, to facilitate positioning, to enhance fixation, and to facilitate effective implantation and use. Some implants have sloped upper and / or lower surfaces to provide a “wedge-shaped” implant, while other implants have circumferential grooves, and / or have radiographic markers, and / or are modified by including a material having a compression profile that differs from the compression profile of the predominant material of the implant. Some implants have surface features to enhance fixation to surrounding surfaces.
Owner:SDGI HLDG
Custom radiographically designed cutting guides and instruments for use in total ankle replacement surgery
ActiveUS8337503B2High precisionSimplify operating proceduresWrist jointsAnkle jointsTibiaSacroiliac joint
A system comprised of custom radiographically designed tibial and talar cutting guides, a tibial reaming guide and bit, and instrumentalities for use in total ankle replacement surgery and a computer-based system and method for making the custom radiographically designed tibial and talar cutting guides.
Owner:LIAN GEORGE JOHN
Radiation scanning of objects for contraband
InactiveUS7103137B2Radiation/particle handlingX/gamma/cosmic radiation measurmentX-rayDetector array
A scanning unit for identifying contraband within objects, such as cargo containers and luggage, moving through the unit along a first path comprises at least one source of a beam of radiation movable across a second path that is transverse to the first path and extends partially around the first path. A stationary detector transverse to the first path also extends partially around the first path, positioned to detect radiation transmitted through the object during scanning. In one example, a plurality of movable X-ray sources are supported by a semi-circular rail perpendicular to the first path and the detector, which may be a detector array is also semi-circular and perpendicular to the path. A fan beam may also be used. Radiographic images may be obtained and / or computed tomography (“CT”) images may be reconstructed. The images may be analyzed for contraband. Methods of scanning objects are also disclosed.
Owner:VAREX IMAGING CORP
Slit and slot scan, SAR, and compton devices and systems for radiation imaging
ActiveUS20100270462A1Reduce productionReduce maintenance costsElectric discharge tubesElectroluminescent light sourcesHigh energyGas detector
The invention provides methods and apparatus for detecting radiation including x-ray photon (including gamma ray photon) and particle radiation for radiographic imaging (including conventional CT and radiation therapy portal and CT), nuclear medicine, material composition analysis, container inspection, mine detection, remediation, high energy physics, and astronomy. This invention provides novel face-on, edge-on, edge-on sub-aperture resolution (SAR), and face-on SAR scintillator detectors, designs and systems for enhanced slit and slot scan radiographic imaging suitable for medical, industrial, Homeland Security, and scientific applications. Some of these detector designs are readily extended for use as area detectors, including cross-coupled arrays, gas detectors, and Compton gamma cameras. Energy integration, photon counting, and limited energy resolution readout capabilities are described. Continuous slit and slot designs as well as sub-slit and sub-slot geometries are described, permitting the use of modular detectors.
Owner:MINNESOTA IMAGING & ENG
X-ray CT method and X-ray CT apparatus
InactiveUS20060291612A1Optimize radiographic conditionMaterial analysis using wave/particle radiationRadiation/particle handlingX-ray filterSlice thickness
In an X-ray CT apparatus, radiographic conditions (protocols) for imaging of each position represented by a z-coordinate are optimized in relation to an X-ray cone beam that spreads in a z direction. A slice thickness of a tomographic image is freely controlled in the z direction using a z filter during a conventional scan or a cine scan. For each tomographic image, a reconstruction function, an image filter, a scan field, a tomographic-image tilt angle, and a position of a tomographic image are freely adjusted or independently designated for scanning of each position in the z direction. Thus, a tomographic image is reconstructed. Moreover, the position of a beam formation X-ray filter in the z direction is shifted in order to optimize a patient dose that depends on the size of the scan field, and X-ray quality.
Owner:GE MEDICAL SYST GLOBAL TECH CO LLC
Radiographing apparatus and image processing program
ActiveUS20090147919A1Highly detailedSharp contrastMaterial analysis using wave/particle radiationRadiation/particle handlingImaging processingDisplay device
A radiographing apparatus according to an aspect of the present invention is characterized in that an image processing device comprises an acquisition device which acquires projection data of a first energy spectrum and projection data of a second energy spectrum, and a synthetic image generating device which synthesizes a first image on the basis of the projection data of the first energy spectrum, and a second image on the basis of the projection data of the second energy spectrum according to a predetermined synthetic condition, and generating a synthetic image, and a display device displays the generated synthetic image.
Owner:FUJIFILM HEALTHCARE CORP
Adaptive radiation therapy method with target detection
InactiveUS20070053491A1Image enhancementImage analysisAdaptive radiotherapyThree dimensional planning
A method for delivering radiation therapy to a patient using a three-dimensional planning image for radiation therapy of the patient wherein the planning image includes a radiation therapy target includes the steps of: determining a digitally reconstructed radiograph from the planning image; identifying a region of the target's projection in the digitally reconstructed radiograph; capturing a radiographic image corresponding to the digitally reconstructed radiograph; identifying a region in the captured radiographic image; comparing the region of the target's projection in the digitally reconstructed radiograph with the identified region in the captured radiographic image; and determining a delivery of the radiation therapy in response to this comparison.
Owner:CARESTREAM HEALTH INC
Radiographic medical imaging system using robot mounted source and sensor for dynamic image capture and tomography
ActiveUS7441953B2Image analysisMaterial analysis using wave/particle radiationRobotic armEngineering
A radiographic imaging system includes (100) a penetrating radiation source (110) including a first translating device (115), the first translating device (115) comprising a first controller (116) for positioning the radiation source. A radiation detector (120) includes second translating device (125) comprising a second controller for positioning the detector (120). A motion capture device (140) is communicably connected to both the first and second controllers. The motion capture device (140) tracks a position of the subject being imaged and provides position information to both the first controller (116) and second controllers (126) for dynamically coordinating trajectories for both the radiation source (110) and the radiation detector(120). The first and second translating devices preferably comprise robotic arms.
Owner:UNIV OF FLORIDA RES FOUNDATION INC
Radiographic tomosynthesis image acquisition utilizing asymmetric geometry
InactiveUS6885724B2High sensitivityImprove image qualityTomosynthesisX/gamma/cosmic radiation measurmentSoft x rayTomosynthesis
Systems and methods that utilize asymmetric geometry to acquire radiographic tomosynthesis images are described. Embodiments comprise tomosynthesis systems and methods for creating a reconstructed image of an object from a plurality of two-dimensional x-ray projection images. These systems comprise: an x-ray detector; and an x-ray source capable of emitting x-rays directed at the x-ray detector; wherein the tomosynthesis system utilizes asymmetric image acquisition geometry, where θ1≠θ0, during image acquisition, wherein θ1 is a sweep angle on one side of a center line of the x-ray detector, and θ0 is a sweep angle on an opposite side of the center line of the x-ray detector, and wherein the total sweep angle, θasym, is θasym=θ1+θ0. Reconstruction algorithms may be utilized to produce reconstructed images of the object from the plurality of two-dimensional x-ray projection images.
Owner:GE MEDICAL SYST GLOBAL TECH CO LLC
Radiopaque marker for a surgical sponge
A surgical sponge comprises a plurality of radiopaque markers having a high radiographic density and a distinctive, visually recognizable shape. The markers have an x-ray density equivalent to at least about 0.1 g / cm2 of BaSO4. The markers produce an x-ray image with high contrast and a shape that is readily recognizable and differentiated from the images produced by other items and structures commonly seen in x-rays of post-operative patients. Owing to the distinctive, high contrast image produced by the markers, the sponge is reliably and unambiguously detected. This is so even in situations where the sponge is inadvertently left in the surgical wound. Discomfort, trauma, and possibly fatal consequences that might otherwise occur are virtually eliminated. The surgical procedure is carried out with decreased likelihood of a sponge being retained inadvertently.
Owner:FABIAN CARL E
Dual-screen digital radiographic imaging detector array
ActiveUS20080245968A1Quality improvementClear imagingTelevision system detailsSolid-state devicesPhosphorDetector array
A radiographic imaging device has a first scintillating phosphor screen having a first thickness and a second scintillating phosphor screen having a second thickness. A transparent substrate is disposed between the first and second screens. An imaging array formed on a side of the substrate includes multiple photosensors and an array of readout elements.
Owner:CARESTREAM HEALTH INC
X-ray apparatus capable of operating in a plurality of imaging modes
InactiveUS7058158B2Material analysis using wave/particle radiationRadiation/particle handlingX-rayTomography
An X-ray apparatus capable of performing both computerized tomography (CT) imaging and usual radiography imaging (usual imaging) can realize high definition even in the usual imaging. In the X-ray apparatus, for the usual imaging, since a chair serving as a supporting structure for supporting a subject on a rotatable table is not required, the chair is withdrawn from an imaging field. The usual imaging is controlled so as to be permitted when the supporting structure is withdrawn from the imaging field. For imaging a knee, for example, sliding the chair allows imaging keeping the knee being in the rotation center. Therefore, a wide variety of imaging operations can be realized with a single flat-panel sensor.
Owner:CANON KK
Radiogram showing location of automatic exposure control sensor
A method for optimizing the radiogram image of a subject is provided. The method provides for showing the location of automatic exposure control sensors on the radiograms, along with alignment and targeting projections to optimize the radiation exposure of the subject. By displaying the location of the automatic exposure control sensors on the radiograms along with the image of the subject, the observers can determine whether the radiogram image was taken with appropriate subject alignment. This method also serves as an educational aid in training radiography technicians.
Owner:DIRECT RADIOGRAPHY
Prosthesis adapted for placement under external imaging
Owner:COOK MEDICAL TECH LLC
Implant system with migration measurement capacity
Owner:DEPUY PROD INC
Imaging apparatus and imaging system
InactiveUS7227926B2Less negligibly affectedEasy to takeTelevision system detailsColor television detailsWorkstationX ray image
Owner:CANON KK
In VIVO sensor and method of making same
InactiveUS20060074479A1Easy to detectUltrasonic/sonic/infrasonic diagnosticsSurgeryIn vivoRadio frequency
Implantable in vivo sensors used to monitor physical, chemical or electrical parameters within a body. The in vivo sensors are integral with an implantable medical device and are responsive to externally or internally applied energy. Upon application of energy, the sensors undergo a phase change in at least part of the material of the device which is then detected external to the body by conventional techniques such as radiography, ultrasound imaging, magnetic resonance imaging, radio frequency imaging or the like. The in vivo sensors of the present invention may be employed to provide volumetric measurements, flow rate measurements, pressure measurements, electrical measurements, biochemical measurements, temperature, measurements, or measure the degree and type of deposits within the lumen of an endoluminal implant, such as a stent or other type of endoluminal conduit. The in vivo sensors may also be used therapeutically to modulate mechanical and / or physical properties of the endoluminal implant in response to the sensed or monitored parameter.
Owner:VACTRONIX SCI LLC
Device and method for safe location and marking of a biopsy cavity
InactiveUS20100234726A1Minimally invasiveEliminate needLuminescence/biological staining preparationSurgerySentinel nodeSentinel lymph node
Cavity and sentinel lymph node marking 412 devices, marker delivery devices, and methods are disclosed. More particularly, upon insertion into a body, the cavity marking device and method enable one to determine the center, orientation, and periphery of the cavity by radiographic, mammography, echogenic, or other noninvasive imaging techniques. A composition and method are disclosed for locating the sentinel lymph node in a mammalian body to determine if cancerous cells have spread thereto. The composition is preferably a fluid composition consisting of a carrier fluid and some type of contrast agent; alternatively, the contrast agent may itself be a fluid and therefore not need a separate carrier fluid. This composition is capable of (1) deposition in or around a lesion and migration to and accumulation in the associated sentinel node, and (2) remote detection via any number of noninvasive techniques. Also disclosed is a method for remotely detecting the location of a sentinel node by (1) depositing a remotely detectable fluid in or around a lesion for migration to and accumulation in the associated sentinel node and (2) remotely detecting the location of that node with a minimum of trauma and toxicity to the patient. The composition and method may serve to mark a biopsy cavity, as well as mark the sentinel lymph node. The marking methods also may combine any of the features as described with the marking device and delivery device.
Owner:DEVICOR MEDICAL PROD
Device and method for margin marking tissue to be radiographed
InactiveUS7127040B2Eliminate confusionEasy to holdSurgical needlesVaccination/ovulation diagnosticsPathology diagnosisRadiography
Owner:BEEKLEY A CT
System and method to generate a selected visualization of a radiological image of an imaged subject
ActiveUS20090080765A1Shorten the timeImprove efficiencyReconstruction from projectionCharacter and pattern recognitionProgram instructionOutput device
A system to illustrate image data of an imaged subjected is provided. The system comprises an imaging system, an input device, an output device, and a controller in communication with the imaging system, the input device, and the output device. The controller includes a processor to perform program instructions representative of the steps of generating a three-dimensional reconstructed volume from the plurality of two-dimensional, radiography images, navigating through the three-dimensional reconstructed volume, the navigating step including receiving an instruction from an input device that identifies a location of a portion of the three-dimensional reconstructed volume, calculating and generating a two-dimensional display of the portion of the three-dimensional reconstructed volume identified in the navigation step, and reporting the additional view or at least one parameter to calculate and generate the additional view.
Owner:GENERAL ELECTRIC CO
Medical image radiographing system, medical image management method and portable terminal
InactiveUS20040086163A1Efficient additionAccurate acquisitionData processing applicationsLocal control/monitoringComputer terminalData mining
a medical image radiograping system capable of modifying radiographing order information suitably. In the system, a control apparatus has: an obtaining section for obtaining identification information of a cassette; a storage for storing the identification information related to radiographing order information, and storing the radiographing order information renewed according to radiographing; and a communication section for transmitting the radiographing order information and the identification information, and the control apparatus has: a storage for storing radiographing order information; a communication section for receiving the radiographing order information and the identification information; a determination section for determining whether the radiographing order information received agrees with the radiographing order information stored or not; and a management section for controlling both the radiographing order information stored and the radiographing order information received and the identification information of the cassete, according to a result determined by the determination section.
Owner:KONICA MINOLTA INC
Examination system, image processing apparatus and method, medium, and x-ray photographic system
In order to improve ease of operation in an X-ray photographic system for performing X-ray photography (radiography) for taking a plurality of photographs (radiographs) when a photographic request is received from an external source; when photographs of a plurality of regions are to be taken, an examination system includes a device for changing the input photographic sequence of the regions to be photographed, a device for taking photographs in accordance with the changed photographic sequence, and a device for outputting the photographed results in a desired sequence.
Owner:CANON KK
Surgical guide for dental implant and methods therefor
A surgical guide assembly is provided for positioning a drill bit during a dental implant procedure. The guide assembly includes a mounting member configured to mount to one or more teeth adjacent to an edentulous area, a base connected to the mounting member and dimensioned to extend over the edentulous area, a translation member adjustable with respect to the base, and a rotation member adjustable with respect to the translation member. The rotation member includes an aperture configured to receive a radiographic marker or a drill. The translation and rotation members may be configured to adjust one of the mesio-distal (MD) rotational alignment and the buccal-lingual (BL) rotational alignment of the radiographic marker inserted in the aperture while holding the other of the MD and BL rotational alignment mechanically fixed. Also, the translation and rotation members may be configured to adjust the other of the MD and BL translational alignment of the radiographic marker while holding said one of the MD and BL translational alignment mechanically fixed. A method of using the dental implant positioning assembly is also disclosed.
Owner:STUMPEL LAMBERT J
Device and method for margin marking of radiography specimens
InactiveUS20050152841A1Eliminate confusionEasy to holdSurgical needlesVaccination/ovulation diagnosticsEngineeringVisual perception
A marking device for defining the margins and orientation of radiography specimens includes a plurality of visually distinctive markers joined by a base that holds the markers until the markers are secured to a specimen. The base serves as a holder for the individual markers as the markers are secured to a specimen with sutures or staples, at which time the markers are disconnected from the base. One or more markers may be secured to a specimen as needed to define the orientation of the specimen. By securing markers to specific locations on a specimen, a surgeon can indicate to radiologists and pathologists the specimen's orientation in the body before removal, thus aiding in future study of the specimen. Since the markers are made either wholly or partially from radiopaque material, the markers are visible when radiographed.
Owner:BEEKLEY A CT
Target density imaging using discrete photon counting to produce high-resolution radiographic images
InactiveUS7166844B1Avoid flowRapid, non-invasiveMaterial analysis by optical meansMachines/enginesParallaxImage resolution
The present invention relates to a system and method for using discrete photon counting to produce transmission radiographic images of a target object with improved spatial resolution and high system sensitivity. The system comprises a radiation source for directing photons at a target object and a detector array for receiving photons passing through the target in order to provide an image of the target density. The detector array is configured to enhance spatial resolution and maintain high system sensitivity. To correct the parallax effect that may be induced by such configuration of the detector array, a process can be computer implemented or program coded to parallax correction.
Owner:SCI APPL INT CORP
Implant with critical ratio of load bearing surface area to central opening area
ActiveUS20120158144A1Easy to implantMaximizes visualizationBone implantSpinal implantsBody shapeVertebral bone
An implant that has a predefined ratio of load bearing surface area to the overall size of the implant body and specifically to the surface area of a centrally located opening of a vertical aperture which connects to a center void area or passage defined by the implant body shape. This invention discloses a critical ratio or balance between loading of contained graft material through the hollow center or central passage of the implant and the implant's frictional load bearing or contact area with e.g., adjacent vertebral bones. Application of this invention to a spinal implant provides an improved integration and integration rate of the graft material or the fusion of the adjacent vertebral bone structures. The ratio between implant load bearing surface area and implant central opening area maximizes implant internal volume and allows a large passage disposed medial laterally to allow for radiographic verification of fusion growth.
Owner:TITAN SPINE
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