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4C301 | Ultrasonic diagnostic devices | |
A61B8/00 -8/14 |
A61B8/00-8/14 | AA | AA00 SYSTEMS FOR SENDING AND RECEIVING ULTRASONIC WAVES |
AA01 | AA02 | AA03 | AA04 | AA06 | AA10 | ||||
. Reflecting systems | . . Vibrators that both send and receive | . . Separate vibrators for sensing and receiving | . . Multiple probes | . Transmission systems | . Other systems for sending and receiving of ultrasonic waves | |||||||
BB | BB00 SCANNING METHODS |
BB01 | BB02 | BB03 | BB04 | BB05 | BB06 | |||||
. Linear scanning | . Sector scanning | . Radial scanning | . Arc scanning | . Manual scanning | . One-dimensional scanning | |||||||
BB11 | BB12 | BB13 | BB14 | BB15 | BB16 | BB17 | BB18 | BB19 | ||||
. Scanning multiple times | . . Multi-function vibrators (e.g., arrays) | . . Three-dimensional scanning | . . One image that is constructed from multiple scans | . . . Trapezoids | . . . . Sector scans performed at both ends of linear scans | . . . . Deflection of linear scanning beams | . . . . . Changing the direction of deflection with each beam | . . . . Inversion of the sector scan by offsetting of the position | ||||
BB21 | BB22 | BB23 | BB24 | BB26 | BB27 | BB28 | BB29 | BB30 | ||||
. Ultrasonic beam-deflection systems | . . Electronic systems | . . . Deflection by means of variable delay | . . . Deflection by means of vibrator selection | . . Mechanical systems | . . . Movement of acoustic mirrors | . . . Movement of vibrators | . . . Types of movement | . . . . Rotary movement | ||||
BB32 | BB33 | BB34 | BB35 | BB36 | BB37 | BB40 | ||||||
. . . . . Continuous rotation in one direction | . . . . . Forward and reverse rotation | . . . . Reciprocating motion | . . . . Oscillating motion | . . . . . Conversion of rotary motion to oscillating motion | . . . . . Conversion of reciprocating motion to oscillating motion | . Other systems for scanning | ||||||
CC | CC00 DISPLAY CLASSIFICATIONS |
CC01 | CC02 | CC03 | CC04 | CC05 | CC06 | CC07 | CC08 | CC09 | CC10 | |
. Fault images | . . B mode | . . Computerized tomography (CT) | . M mode | . A mode | . C mode | . F mode | . Holography | . Conversion of acoustic images to video images | . Sound display | |||
DD | DD00 CONDITIONS OR OBJECTS THAT ARE MEASURED |
DD01 | DD02 | DD03 | DD04 | DD06 | DD07 | DD09 | DD10 | |||
. Blood flow | . Doppler measurement | . . Continuous-wave (CW) Doppler measurement | . . Pulsed Doppler measurement | . Movement of tissues | . . Heart | . Blood pressure | . Pulse rate or heartbeat | |||||
DD11 | DD12 | DD13 | DD14 | DD15 | DD16 | DD17 | DD18 | |||||
. Identification of tissues | . . Sound speed | . . Nonlinear parameters | . . . Coefficient of nonlinear reflection | . . . Parameters dependent on frequency | . . . Parameters dependent on sound pressure | . . . Use of pump waves | . . Sound-dampening rate | |||||
DD21 | DD22 | DD24 | DD25 | DD26 | DD27 | DD29 | DD30 | |||||
. Thickness, width, or length | . . Thickness of body fat layers or amount of fat | . Breasts | . Fetuses | . Eyes | . Teeth and gums | . Temperature | . Other conditions or objects that are measured | |||||
EE | EE00 PURPOSE |
EE01 | EE02 | EE03 | EE04 | EE05 | EE06 | EE07 | EE08 | EE09 | EE10 | |
. Improved resolution | . . Directional resolution | . . Distance resolution | . Reduced noise | . Reduced clutter | . Improved sensitivity | . Improved picture quality | . Expanded field of view | . Expanded range of measurement | . Providing for higher speed | |||
EE11 | EE12 | EE13 | EE14 | EE15 | EE16 | EE17 | EE18 | EE19 | EE20 | |||
. Improved accuracy | . Improved reliability | . Improved operating characteristics | . Automation | . Simplified construction | . Miniaturization | . Reduced cost | . Reduced power consumption | . Improved safety | . Other purposes | |||
FF | FF00 DEVICES FOR SPECIAL APPLICATIONS |
FF01 | FF02 | FF04 | FF05 | FF06 | FF07 | FF09 | ||||
. Devices inserted into body cavities or body tracts | . . Means for fixing inside the body | . . Ultrasonic wave endoscopes | . . . Combination with optical endoscopes | . . . Endoscopes for oral cavities | . . . Rectal or transvaginal endoscopes | . . Catheters | ||||||
FF12 | FF13 | FF14 | FF15 | FF17 | FF18 | FF19 | FF20 | |||||
. . Filling of space between surfaces of body cavities and probes | . . . Means that push probes or vibrators | . . . Fluids placed between surfaces | . . . . Use of balloons | . Centesis | . . Removable instruments for centesis | . . Special structures for centesis | . . . Centesis needles | |||||
FF21 | FF22 | FF23 | FF24 | FF25 | FF26 | FF27 | FF28 | FF29 | FF30 | |||
. Combinations with therapeutic instruments | . . Ultrasonic shock waves | . . Heat | . . . Hyperthermia | . . Setting of points where energy irradiation is aimed | . . Observation of treated parts | . Synchronization with vital signals | . . Electrocardiograph (ECG) synchronization | . . Ultrasonic cardiograph (UCG) synchronization | . Other devices for special applications | |||
GA | GA00 DEVICES WITH CHARACTERISTIC PROBES |
GA01 | GA02 | GA03 | GA04 | GA05 | GA06 | GA07 | ||||
. Structure of cases | . . Removable cables | . . Attachment of vibrators or the like | . . Shielding or grounding | . . . Variants that are shielded by conductive layers | . . Variants to which markers or indicators are attached | . . Materials | ||||||
GA11 | GA12 | GA13 | GA14 | GA15 | GA16 | GA17 | GA20 | |||||
. Mechanisms for transmission of drive force | . . Driving directly by motors | . . Belts or gears | . . Wires or flexible joints | . . . Transmission of rotary motion | . . . Transmission of reciprocating motion | . . Magnetic means (i.e., other than motors) | . Other structural details | |||||
GB | GB00 VIBRATORS AND PERIPHERAL STRUCTURES |
GB01 | GB02 | GB03 | GB04 | GB05 | GB06 | GB07 | GB08 | GB09 | GB10 | |
. Vibrators | . . Arrays | . . . One-dimensional arrays | . . . . Rectilinear arrays | . . . . Nonlinear arrays and flexible arrays | . . . . . Convex arrays | . . . . . Concave arrays | . . . . . Ring-shaped arrays | . . . Two-dimensional arrays and multiple columns | . . . . Flat arrays | |||
GB12 | GB13 | GB14 | GB15 | GB16 | GB17 | GB18 | GB19 | GB20 | ||||
. . . . Curved surfaces and flexible arrays | . . . . . Cylindrical arrays | . . Vibrators that are not in an array (i.e., individual vibrating elements within arrays) | . . . Variants with separate drives for vibrating surfaces | . . . Rings | . . . Curved surfaces | . . Electrodes and electrical connections | . . . Wire lead-outs | . Backload materials | ||||
GB21 | GB22 | GB23 | GB24 | GB25 | GB27 | GB28 | GB29 | GB30 | ||||
. Matching layers | . . Layers between sensed bodies and vibrators | . . Layers between vibrators and dampers | . . Multiple layers | . . Layers whose thickness is one-quarter wavelength | . Acoustic lenses | . . Convex lenses | . . Concave lenses | . . Variable characteristics | ||||
GB31 | GB32 | GB33 | GB34 | GB35 | GB36 | GB37 | GB38 | GB39 | GB40 | |||
. Acoustic mirrors | . . Concave mirrors | . Methods of manufacture | . Materials | . . Metals | . . Ceramics | . . Macromolecules or resins | . . Quartz or glass | . . Mixed materials | . Other vibrators and peripheral structures | |||
GC | GC00 SONIC COUPLING FOR BODIES BEING EXAMINED |
GC01 | GC02 | GC03 | GC04 | GC05 | ||||||
. Materials for sonic coupling media | . . Water | . . Oil | . . Gel or pads | . . Sols or pastes | ||||||||
GC11 | GC12 | GC13 | GC14 | GC15 | GC16 | GC17 | GC18 | GC19 | GC20 | |||
. Means for housing of media | . . Liquid tanks or chambers | . . . Surfaces of contact with sensed bodies | . . . . Full-surface rigidity | . . . . Partial non-rigidity (e.g., sound windows) | . . . . Full-surface non-rigidity (e.g., fully acoustically-transmissive membranes) | . . Liquid bags | . . Variants with structures that prevent random reflection | . . . Installation of ultrasonic wave absorbers on wall surfaces | . . . Wall surfaces with indentations and projections | |||
GC21 | GC22 | GC23 | GC24 | GC25 | GC26 | GC27 | GC28 | GC30 | ||||
. Medium-related operations | . . Supply or recovery of media | . . Means for sealing | . . Elimination of air bubbles | . . . Films | . . . Bubble traps | . . Temperature control | . . Pressure control | . Other sonic coupling with bodies being examined | ||||
GD | GD00 DETECTION OF PROBE INFORMATION |
GD01 | GD02 | GD03 | GD04 | GD05 | GD06 | GD07 | GD08 | GD09 | GD10 | |
. Sensing of position or angle | . . Position, direction, or angle of probe against the body surface | . . . Arm joints | . . . Use of optical means (e.g., video cameras) | . . . Levels | . . Detection of the positions of probes or inserted objects in the body | . . . Variants to which vibrators are attached | . . . Use of ultrasonic reflectors | . . Detection of the rotational position of oscillators | . . . Rotary encoders | |||
GD12 | GD13 | GD14 | GD15 | GD16 | GD20 | |||||||
. . . . Changes in electrical resistance | . . . . Optical reflection or transmission | . . . . Changes in photoelectric resistance | . . . . Changes in electrostatic capacitance | . . . . Magnetic means | . Other detection of probe information | |||||||
HH | HH00 INPUT/OUTPUT CONTROL |
HH01 | HH02 | HH03 | HH04 | HH05 | HH07 | HH08 | HH09 | |||
. Pulse control | . . Impressed voltage | . . Oscillation cycle (e.g., pulse repetition frequency [PRF]) | . . . Variable-pulse repetition frequency (PRF) | . . . . Variation according to depth measurement | . Control of scanning beams | . . Density of scanning beams | . . Obtaining of different data from each scanning beam (e.g., focal points) | |||||
HH11 | HH12 | HH13 | HH14 | HH15 | HH16 | HH17 | ||||||
. Scanning sequences | . . Interlaced scanning | . . Control of the width or position of the array opening | . . . Control such that width or position is connected to the deflection angle | . . . Control such that width or position is connected to the depth measurement | . . . Movement in the direction of the central axis | . . Switching between multiple measurements by time division | ||||||
HH21 | HH22 | HH23 | HH24 | HH25 | HH26 | HH27 | ||||||
. Focus | . . Use of the shape of the vibrator | . . Use of acoustic lenses | . . Use of delays | . . . Dynamic focus (i.e., multistage focus) | . . . Transmission focus | . . . Reception focus | ||||||
HH31 | HH32 | HH33 | HH34 | HH35 | HH36 | HH37 | HH38 | HH39 | HH40 | |||
. Means of delay | . . Analog means | . . Digital means | . . . Shift registers | . . . Counters | . . . . Clocks | . . Means of delay for the purpose of focus | . . Means of delay for the purpose of deflection | . . Multistage delay | . . . Deflection or focusing | |||
HH42 | HH43 | HH45 | HH46 | HH47 | HH48 | HH49 | ||||||
. . . Preset settings or fine settings | . . Means of delay for filters (e.g., signal processing) | . Multi-frequency transmission and reception | . . Dual-function vibrators | . . Individual vibrators | . . Simultaneous transmission and reception | . . Time-divided transmission and reception | ||||||
HH51 | HH52 | HH53 | HH54 | HH55 | HH56 | HH57 | HH60 | |||||
. Detection | . . Envelope detection | . . Phase detection | . . . Detection of intersection | . . . . Variable reference-wave frequencies | . . . . Multiple reference waves | . . . Multistage phase detection | . Other input/output control | |||||
JA | JA00 SIGNAL TRANSMISSION AND PATHS THEREOF |
JA01 | JA02 | JA03 | JA04 | JA06 | ||||||
. Signal classifications | . . Signal classifications other than electric signals | . . . Light | . . . Wireless signals | . Additional supply of power | ||||||||
JA11 | JA12 | JA13 | JA14 | JA15 | JA16 | JA17 | JA18 | JA19 | JA20 | |||
. Mechanical structure of the transmission lines | . . Interior of the probe | . . . Selective transmission of signals to vibrators | . . . . Transformer coupling | . . . . Lead switches | . . . . Slip rings | . . Cable structures or handling of cables | . . Main units | . . Connection for each section (e.g., connectors) | . Other signal transmission and transmission paths | |||
JB | JB00 SIGNAL PROCESSING |
JB01 | JB02 | JB03 | JB04 | JB06 | JB07 | JB08 | JB09 | |||
. Analog processing | . Digital processing | . . Analog to digital conversion (A/D) | . . Digital to analog conversion (D/A) | . Sampling | . Gates | . . Automatic movement | . . Multiple gates | |||||
JB11 | JB12 | JB13 | JB14 | JB15 | JB17 | JB18 | JB19 | |||||
. Signal amplification | . . Automatic gain control (AGC) | . . Tuning-gain control (TGC) or self-tuning control (STC) | . . . Characteristic curves for variable amplification | . . Deflection angle interlock | . Signal correction | . . Correction of temperature | . . Correction of sound speed | |||||
JB21 | JB22 | JB23 | JB24 | JB25 | JB26 | JB27 | JB28 | JB29 | JB30 | |||
. Signal calculations | . . Signal comparison | . . . Amplitude comparison | . . . Phase comparison | . . . Time comparison | . . . Comparison of signals that are transmitted and received at different frequencies | . . . Comparison to reference signals | . . Correlation | . . Addition, subtraction, or synthesis | . . Differentiation, integration, or accumulation | |||
JB32 | JB33 | JB34 | JB35 | JB36 | JB37 | JB38 | JB39 | JB40 | ||||
. . Multiplication | . . . Multiplication of consecutive coefficients | . . Fourier transformation | . . Filtering | . . . Moving-target indicators (MTI) or line cancellers | . . . Frequency filters | . . . . Low-pass filters (LPF), band-pass filters (BPF), or high-pass filters (HPF) | . . . . Synchronized filters | . . . . Notch filters | ||||
JB42 | JB43 | JB44 | JB45 | JB46 | JB47 | JB50 | ||||||
. . . Characteristics of variable filters | . Multiple signal connections | . . Signals with different focuses | . . Signals with different openings | . . Signals with different frequencies | . . Connection position that is shifted for each scan line | . Other signal processing | ||||||
JC | JC00 IMAGE PROCESSING |
JC01 | JC02 | JC03 | JC05 | JC06 | JC07 | JC08 | ||||
. Interpolation | . . Embedding of interpolated data by means of uniform mathematical operations | . . Use of multiple operations according to the interpolated position | . Synthetic aperture methods | . Image filters | . . Balancing or smoothing | . . Outline extraction | ||||||
JC11 | JC12 | JC13 | JC14 | JC15 | JC16 | JC20 | ||||||
. Processing between multiple images | . . Differences between images | . . Composite images | . . . Composites of similar diagnostic images | . . . Composites of diagnostic images and other vital signals | . . . Composites of diagnostic images and characters or text | . Other image processing | ||||||
KK | KK00 DISPLAY |
KK01 | KK02 | KK03 | KK04 | KK06 | KK07 | KK08 | KK09 | |||
. Freezing | . Color display | . Gray levels | . . Levels that can be changed for each region or image | . Images where negative and positive or right and left are reversed | . Rotation or movement of images | . Enlargement or reduction | . Spectrum display | |||||
KK11 | KK12 | KK13 | KK14 | KK16 | KK17 | KK18 | KK19 | |||||
. Display of multiple images | . . Superimposition | . . Parallel display | . . . Division of screens into an arbitrary number of displays | . Three-dimensional images | . . Three-dimensional or pseudo-three-dimensional display | . . Sectional display of three-dimensional areas | . . . Arbitrary sections | |||||
KK21 | KK22 | KK23 | KK24 | KK25 | KK26 | KK27 | KK28 | KK29 | KK30 | |||
. Flow mapping | . . Modulation of brightness or color | . . Vector display | . Length, area, or volume | . . Display of scales or grids | . . Calculations made from designated areas | . Cursors, markers, or characters | . . Charts of the body | . . . Specified areas (e.g., teeth) | . . Establishment of areas of interest | |||
KK31 | KK32 | KK33 | KK34 | KK36 | KK37 | KK38 | KK40 | |||||
. Diagnostic information | . . Related to probes | . . Personal information, dates, or the like | . . Vital signals | . Control of display speed | . . Slow | . . Fast forward | . Other displays | |||||
LL | LL00 RECORDING AND OTHERS |
LL01 | LL02 | LL03 | LL04 | LL05 | LL06 | LL07 | LL08 | |||
. Memory | . . Image memory | . . . Multiple memory units | . . . Characteristic data storage capacity (DSC) | . . Other applications | . . . Line memories | . . . Filters | . . . Stacks or buffers | |||||
LL11 | LL12 | LL13 | LL14 | LL15 | LL17 | LL20 | ||||||
. Image recording and playback | . . Video tape recorders (VTR) | . . Optical or magnetic discs | . . Recording of original data | . . Photography | . Detection of abnormalities or self-diagnosis | . Others |