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4C093 | APPARATUS FOR RADIATION DIAGNOSIS | |
A61B6/00 -6/14,313 |
A61B6/00-6/14,313 | AA | AA00 KIND OF RADIOGRAPHY SYSTEM |
AA01 | AA02 | AA03 | AA04 | AA05 | AA07 | AA08 | AA09 | AA10 | |
. Fluoroscopy systems | . . Quick radiography | . . . Cassette types | . . Continuous radiography | . . Indirect radiography | . Special fluoroscopy systems | . . Multidirectional diagnosis systems | . . . Biplane radiography | . . . Stereoscopic radiography | ||||
AA11 | AA12 | AA13 | AA14 | AA16 | AA18 | AA19 | ||||||
. . Tomography | . . Panoramic radiography | . . Cine radiography | . . Enlarging radiography | . DR systems | . Scanning radiography systems excluding CT | . . Slit moving systems | ||||||
AA21 | AA22 | AA24 | AA25 | AA26 | AA27 | AA28 | AA29 | AA30 | ||||
. CT systems | . . X-ray CT | . Radiography by injection of contrast preparations | . Therapy planning systems | . Medical image processing or medical image control systems | . . Image reading and reproducing devices | . . . for imaging plates | . Industrial systems | . Others * | ||||
BA | BA00 CT SCANNING SYSTEM OR PROJECTION METHOD ONLY FOR CT |
BA01 | BA02 | BA03 | BA04 | BA05 | BA06 | BA07 | BA08 | BA09 | BA10 | |
. CT scanning | . . T-R | . . R-R | . . R-S | . . S-S | . . Continuous scanning on the same slice planes | . . Scanning on multiple slice planes | . . . Simultaneous scanning | . . . Continuous scanning | . . . . Spiral or helical scanning | |||
BA11 | BA12 | BA13 | BA14 | BA15 | BA16 | BA17 | BA18 | BA20 | ||||
. Projection methods | . . Multi-angle projection | . . . with more than one rotation | . . . Normal and reverse rotations | . . Small angle projection | . . . Particular angles | . . Scanography; Making fluoroscopic images by CT | . . Scattered radiation projection | . Others * | ||||
CA | CA00 PURPOSE |
CA01 | CA02 | CA03 | CA04 | CA05 | CA06 | CA07 | CA08 | CA09 | CA10 | |
. Improving image quality | . . of spatial resolutions e.g. improving resolutions of data | . . of time resolutions e.g. achieving high frame rates | . . of density resolutions e.g. contrasts | . . removing or correcting distortion | . . removing noises e.g. improving signal-to-noise (S/N) ratios | . . . of information carrier noises e.g. scattered radiations | . . of sharpness e.g. reducing blurs | . . Uniformising image quality | . . . of multiple images | |||
CA12 | CA13 | CA15 | CA16 | CA17 | CA18 | |||||||
. . . of single images e.g. reducing density unevenness | . . removing artifacts | . Improving operability | . . facilitating handling of apparatus | . . reducing operators' fatigue | . . improving diagnostic efficiency or throughputs | |||||||
CA21 | CA22 | CA23 | CA24 | CA26 | CA27 | CA28 | CA29 | CA30 | ||||
. Improving visibility | . . with indicators or the like | . . facilitating stereoscopic understanding | . . by timings of indications | . Accelerating image indication | . . of data acquisitions | . . of reconstruction operations | . . of image processing | . . of image reading | ||||
CA31 | CA32 | CA33 | CA34 | CA35 | CA36 | CA37 | CA38 | CA39 | CA40 | |||
. Improving detection efficiency | . Downsizing simplification or cost reduction | . Improving safety of subjects or operators | . . reducing exposure doses | . Improving reliability | . Improving maintainability or facilitating adjustments | . Multifunctionalisation of apparatus | . Preventing damages of the apparatus | . Accelerating or smoothing behaviours | . Preventing film or the like from light-striking | |||
CA41 | CA50 | |||||||||||
. Preventing damages caused by environments or aging | . Others * | |||||||||||
DA | DA00 REGION TO BE DIAGNOSED |
DA01 | DA02 | DA03 | DA04 | DA05 | DA06 | DA10 | ||||
. Alimentary canals e.g. stomachs oesophagi or intestines | . Circulatory organs e.g. hearts or blood vessels | . Respiratory organs | . Heads | . Teeth including jaws | . Breasts | . Others * | ||||||
EA | EA00 X-RAY RADIATION SYSTEM |
EA01 | EA02 | EA03 | EA04 | EA05 | EA06 | EA07 | ||||
. Radiation sources | . . X-ray tube types | . . . Multifocal types or focal variable types | . . Electron beam scanning types | . . Radiations excluding X-rays | . . with multiple sources | . . Multiple types of polyenergetic radiations | ||||||
EA11 | EA12 | EA13 | EA14 | EA15 | EA16 | EA17 | EA18 | EA20 | ||||
. Radiation filters | . Diaphragms or collimators including shutters | . . Fixed opening types including tubi | . . Variable opening types e.g. variable diaphragms | . Masks for fractionated radiography | . Masks for II | . Sights | . . performing from multiple directions | . Others * | ||||
EB | EB00 X-RAY DETECTING OR IMAGE-RECEIVING SECTION |
EB01 | EB02 | EB03 | EB04 | EB05 | EB06 | EB07 | EB08 | EB09 | EB10 | |
. Phosphors or fluorescent plates | . X-ray II + TV systems | . . characterised by the components | . Combinations of sensitising papers and films; Films | . Imaging plates or receptacles therefor | . Detectors for xerography | . Spot shot devices | . . characterised by the components | . Film changers | . Optical cameras | |||
EB11 | EB12 | EB13 | EB14 | EB15 | EB16 | EB17 | EB18 | EB19 | EB20 | |||
. Scintillation detectors | . . combined with semiconductor optical elements | . Semiconductor detectors | . Gas detectors | . . Ionisation chamber types | . Array structures of detectors | . . in two-dimensions | . . Multiple arrays | . . Offset arrays | . characterised by manufacturing detectors | |||
EB21 | EB22 | EB24 | EB25 | EB26 | EB28 | EB30 | ||||||
. Positioning detectors | . Collimators for detectors or the like | . Grids | . . Structures or manufacturing methods | . . Supporting or oscillating mechanisms | . Detectors for special uses | . Others * | ||||||
EC | EC00 SUPPORTING OR MOVING X-RAY SOURCE, X-RAY DETECTING OR IMAGE-RECEIVING SECTION |
EC01 | EC02 | EC03 | EC04 | |||||||
. Installation systems | . . On-floor installation types | . . Ceiling suspension types | . . Movable carriage types | |||||||||
EC11 | EC12 | EC13 | EC14 | EC15 | EC16 | EC17 | ||||||
. Supporting mechanisms for X-ray sources or image-receiving sections | . . Frames or stands | . . Columns | . . Linkages | . . Arms | . . . C-arms or U-arms | . . characterised by the mounting direction of X-ray tubes | ||||||
EC21 | EC22 | EC23 | EC24 | EC25 | EC26 | EC27 | EC28 | EC29 | EC30 | |||
. Moving mechanisms for X-ray sources or image-receiving sections | . . for changing the direction of X-rays incident to subjects | . . . Radiography mechanisms at oblique incidence angles | . . . Tomography mechanisms excluding CT | . . . . Circular arc tomographic mechanisms | . . . . Parallel tomographic mechanisms | . . . . Multiorbital tomographic mechanisms | . . . Pivoting or rotating mechanisms | . . for changing distances between X-ray sources and image-receiving sections | . . . between X-ray sources and tops | |||
EC32 | EC33 | EC34 | EC35 | EC36 | EC37 | |||||||
. . . between tops and image-receiving sections | . . co-operatively moving X-ray sources and image-receiving sections in the axial direction of subjects' bodies | . . for changing direction of X-ray sources only | . . for retracting image-receivers to the outside of radiation fields | . . . for switching between fluoroscopic systems and radiographic systems | . . for setting the direction of multiple X-ray sources | |||||||
EC41 | EC42 | EC43 | EC44 | EC45 | EC46 | EC47 | EC48 | |||||
. Gantries only for CT | . . Scanning mechanisms | . . characterised by frame structures | . . Slip rings | . . Cooling mechanisms | . . Position adjusting mechanisms | . . . Tilting mechanisms for gantries | . . . for switching radiography regions | |||||
EC51 | EC52 | EC53 | EC54 | EC55 | EC56 | EC57 | EC58 | EC59 | EC60 | |||
. Mechanisms specially adapted for movements or safety mechanisms | . . characterised by guiding or supporting mechanisms | . . for reducing operating forces or driving forces | . . . Counterbalance types | . . . Spring types | . . Shock-absorbing mechanisms including antivibration mechanisms | . . Anti-collision mechanisms or contact detection mechanisms | . . Braking mechanisms | . . Cable processing mechanisms | . Others * | |||
ED | ED00 SUPPORTING, MOVING OR FASTENING SUBJECT |
ED01 | ED02 | ED03 | ED04 | ED05 | ED06 | ED07 | ED08 | ED10 | ||
. Beds or tables | . . characterised by shapes or materials of tops | . . characterised by supporting mechanisms of beds or tops | . . characterised by moving mechanisms | . . . for raising and lowering | . . . for vertical movements | . . . for horizontal movements or turnings | . . . Rolling | . Chairs | ||||
ED11 | ED12 | ED13 | ED14 | ED15 | ED16 | ED17 | ED18 | ED19 | ||||
. Equipment for supporting or fastening | . . Supports for fastening heads e.g. head rests | . . . Cephalostats | . . Shoulder supports e.g. shoulder stoppers | . . Arm supports e.g. arm rests or arm holders | . . Steps e.g. foot rests | . . Bands | . . Ear rods | . . Baby or infant fastenings | ||||
ED21 | ED22 | ED23 | ED24 | ED30 | ||||||||
. Compression mechanisms | . . for abdomens | . . . Squeezing compression | . . . characterised by shapes or materials of compression cones | . Others * | ||||||||
EE | EE00 ACCESSORY, PERIPHERAL DEVICE OR FACILITY |
EE01 | EE02 | EE04 | EE05 | EE06 | EE07 | EE08 | EE09 | |||
. Operation panels | . . characterised by arrangements structures or the like of operating units | . Film viewing devices e.g. Shaukasten | . Stereoscopic viewing devices e.g. stereo viewers | . . Television images to be viewed | . Automatic developing machines | . Cameras for hard copies | . Printers | |||||
EE11 | EE12 | EE13 | EE14 | EE15 | EE16 | EE17 | EE18 | EE19 | EE20 | |||
. Radiation diagnosis rooms | . Mobile X-ray vehicles | . . Auxiliary mechanisms for mounting apparatus | . Power supply facilities | . Instruction devices for patients e.g. interphones | . Surveillance monitors | . Radiation protectors | . . Clothing | . Instruments for measuring physiques of subjects | . Contrast preparations or syringes | |||
EE30 | ||||||||||||
. Others * | ||||||||||||
FA | FA00 CONTROL |
FA01 | FA02 | FA03 | FA04 | FA05 | FA06 | |||||
. Operation systems | . . Remote operations | . . Proximity operations | . . . Operating units integral with the apparatus | . . Controlling single devices or systems | . . Controlling multiple devices or systems | |||||||
FA11 | FA12 | FA13 | FA14 | FA15 | FA16 | FA17 | FA18 | FA19 | FA20 | |||
. Objects to be controlled | . . Operative methods or modes | . . . Setting or switching conditions or modes | . . . Switching between fluoroscopy and radiography | . . X-ray-radiation systems | . . . X-ray radiation fields e.g. diaphragm openings | . . . Deflection of X-ray beams | . . . X-ray doses | . . . Exposure timings | . . . Slits or the like | |||
FA22 | FA23 | FA24 | FA25 | FA26 | FA27 | FA28 | FA29 | FA30 | ||||
. . Detecting or image-receiving systems | . . . Openings of image-receiving sections e.g. masks | . . . Conveying films or the like | . . . Switching visual fields of II | . . . Incidence light quantities to imaging devices | . . . . with diaphragms or filters | . . . Optical distribution means e.g. mirrors or lenses | . . . Startups or the like of image pick-up tubes | . . . switching TV scanning systems | ||||
FA32 | FA33 | FA34 | FA35 | FA36 | ||||||||
. . . Detectors | . . Data acquiring sections | . . . Acquiring data e.g. sampling | . . Indicating or outputting sections e.g. CRT or printers | . . Devices for supporting subjects | ||||||||
FA41 | FA42 | FA43 | FA44 | FA45 | FA46 | FA47 | FA48 | FA49 | ||||
. Systems for producing signals for control | . . with switches or by switch operations | . . sequentially by behaviours of apparatus | . . . Preset systems including memory type programmes | . . based on comparisons between signals | . . using signals of synchronising signal sources | . . . Biological signals | . . . TV synchronising signals | . . using speech signals | ||||
FA51 | FA52 | FA53 | FA54 | FA55 | FA56 | FA57 | FA58 | FA59 | FA60 | |||
. Variables to be controlled | . . Time or points of time | . . Distances. e.g. in vertical directions | . . . in horizontal directions | . . Angles or quantities of rotations including the direction of rotations | . . Speed or angular speed | . . Pressure or force | . . Temperatures or humidity | . . Electric currents or voltages | . Others * | |||
FB | FB00 INDICATING BEHAVIOUR OR CONDITION |
FB01 | FB02 | FB03 | FB04 | FB05 | FB06 | FB07 | FB08 | FB09 | FB10 | |
. Travelled distances | . Angles of rotations | . Distances between X-ray sources and image-receiving sections or between X-ray sources and tops | . Shredding planes | . Depths | . Number of films IP or the like | . Conveying states of films IP or the like | . Radiography modes | . Radiographic conditions | . Identification (ID) | |||
FB11 | FB12 | FB20 | ||||||||||
. Abnormal conditions | . . involving alarms | . Others * | ||||||||||
FC | FC00 DATA ACQUISITION |
FC01 | FC02 | FC03 | FC04 | |||||||
. Constitutions of data acquisition circuits | . . Gain adjustment circuits | . . Channel switching circuits | . . Integration circuits | |||||||||
FC11 | FC12 | FC13 | FC14 | FC15 | FC16 | FC17 | FC18 | FC19 | ||||
. Correction or calibration | . . Relativisation of measuring systems by reference substances | . . . performed simultaneously with radiography of subjects | . . using water bags wedges or the like | . . using detectors for calibrations | . . for setting correction coefficients or functions | . . correcting characteristics of detection systems | . . . of sensitivities | . . . of offsets | ||||
FC22 | FC23 | FC24 | FC25 | FC26 | FC27 | FC28 | FC30 | |||||
. . of temperatures | . . of radiation intensities | . . of beam hardening e.g. hardening of radiation qualities | . . of body motions | . . of scattered radiations | . . of positional deviations | . . . of centres of rotations | . Others * | |||||
FD | FD00 BASIC DATA PROCESSING |
FD01 | FD02 | FD03 | FD04 | FD05 | FD06 | FD07 | FD08 | FD09 | ||
. Digitalisation e.g. sampling or quantising | . Logarithmic conversions | . Normalisations or statistical processing | . Orthogonal transformations or inverse transformations thereof | . Filtering | . . Nonlinear filters | . Interpolation or extrapolation methods | . Functional approximations | . Threshold-value processing | ||||
FD11 | FD12 | FD13 | FD20 | |||||||||
. Constant operations; Operations between data | . . Weighting | . . Differential processing excluding differentials between images | . Others * | |||||||||
FE | FE00 IMAGE RECONSTRUCTION ONLY FOR CT |
FE01 | FE02 | FE03 | FE04 | FE05 | FE06 | FE07 | FE08 | FE09 | ||
. Reconstruction techniques | . . Matrix methods | . . Successive approximation methods | . . Simple back projection methods | . . One-dimensional and two-dimensional Fourier transform methods | . . Filtered back projection methods | . . . One-dimensional Fourier transform methods | . . . Convolution or convolution integral methods | . . Analogue reconstruction methods | ||||
FE11 | FE12 | FE13 | FE14 | FE15 | FE16 | FE17 | FE18 | FE19 | ||||
. Operation processing | . . of projection data | . . . selecting or dividing data | . . . making composite data or secondary data | . . Fan-parallel data conversions | . . Fan beam reconstruction | . . Fourier transform operations | . . selecting or operating filter functions | . . selecting or operating convolution functions | ||||
FE22 | FE23 | FE24 | FE25 | FE26 | FE27 | FE30 | ||||||
. . Back projection operations | . . . setting back projection regions | . . characterised by the procedures of operation execution | . . . High-speed operation systems | . . . . Processing in parallel | . . . . Pipeline processing | . Others * | ||||||
FF | FF00 IMAGE PROCESSING |
FF01 | FF02 | FF03 | FF04 | FF05 | FF06 | FF07 | FF08 | FF09 | ||
. for correcting deterioration of image quality | . . correcting distortion | . . removing noises | . . restoring blurred images | . for correcting uniformity | . . Smoothing | . Enhancement processing | . . Gradation conversion or greyscale conversion | . . of particular components including suppressions | ||||
FF11 | FF12 | FF13 | FF15 | FF16 | FF17 | FF18 | FF19 | FF20 | ||||
. Geometrical transformation processing | . . by movements e.g. translations or rotations | . . by enlarging or reducing | . for detecting objects e.g. clipping | . . Profiles | . . Lesioned sections | . for detecting feature value | . . by density value statistics | . . characterised by shapes | ||||
FF21 | FF22 | FF23 | FF24 | FF25 | FF27 | FF28 | FF29 | FF30 | ||||
. for measuring or analysing physical quantities based on images | . . Distances or lengths | . . Areas or volumes | . . Dynamic analyses | . . Bone mineral contents | . for setting regions | . . Regions of interest (ROI) | . for density resolutions | . . Windows e.g. widths or levels | ||||
FF31 | FF32 | FF33 | FF34 | FF35 | FF36 | FF37 | FF38 | |||||
. for multiple images | . . Multi-frames | . . between images | . . . Subtractions | . . . Screen composition | . . . . adding or integrating images | . . . Positioning | . . . making images continuous e.g. smoothing | |||||
FF41 | FF42 | FF43 | FF44 | FF45 | FF46 | FF47 | FF48 | FF50 | ||||
. for making special images | . . Three-dimensional images | . . . indicating images with shadows | . . . indicating contours | . . converting cross-sections | . . indicating desired cross-section | . . . curved | . . . by shifting data for digital television tomographic layers or the like | . Others * | ||||
FG | FG00 INDICATING OR OUTPUTTING IMAGE OR THE LIKE |
FG01 | FG02 | FG04 | FG05 | FG07 | FG08 | FG09 | ||||
. Colour indications | . Controlling luminance | . Interactive input devices e.g. light pens | . . Joysticks track balls or the like | . characterised by indicating devices | . . having multiple indicating devices | . . characterised by resolution or indication speed or the like | ||||||
FG11 | FG12 | FG13 | FG14 | FG15 | FG16 | FG18 | FG19 | FG20 | ||||
. Auxiliary indications | . . of scales | . . of markers | . . of graphs | . . of biological signals | . . of numerical values or characters | . Outputting diagnostic reports | . Indications or outputs by speeches | . Others * | ||||
FH | FH00 RECORDING, TRANSMITTING, OR STORING IMAGE |
FH01 | FH02 | FH03 | FH04 | FH05 | FH06 | FH07 | FH08 | FH09 | FH10 | |
. Compressing or restoring data | . Temporary storage by memories | . . corresponding to additional information | . Digital records e.g. optical discs or digital disc recorders (DDR) | . Analogue records e.g. video tape recorders (VTR) | . Transmission e.g. optical transmission or interfaces | . Image databases | . . Data access or retrieval | . Giving data identification information | . Others * | |||
GA | GA00 TESTING, MAINTENANCE, OR MANAGEMENT |
GA01 | GA02 | GA03 | GA05 | GA06 | GA07 | GA10 | ||||
. Reference settings e.g. phantoms | . . Structures or materials | . . Arrangements | . Maintenance or management | . . Simulated behaviours or testing | . . Troubleshooting | . Others * |