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Class Information
Number: 600/456
Name: Surgery > Diagnostic testing > Detecting nuclear, electromagnetic, or ultrasonic radiation > Ultrasonic > Doppler effect (e.g., fetal hr monitoring) > Blood flow studies > Pulse doppler > With volumetric measurement
Description: Subject matter wherein a quantitative determination of blood flow volume is detected.










Patents under this class:
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Patent Number Title Of Patent Date Issued
5720291 Three dimensional medical ultrasonic diagnostic image of tissue texture and vasculature Feb. 24, 1998
5690111 Ultrasound diagnostic apparatus Nov. 25, 1997
5682896 Method and apparatus for generating volume flow measurement Nov. 4, 1997
5653237 Apparatus for measuring biological signal Aug. 5, 1997
5623930 Ultrasound system for flow measurement Apr. 29, 1997
5575290 Coarse-fine ultrasound transducer array for medical imaging Nov. 19, 1996
5555886 Apparatus and method for detecting blood vessel size and direction for doppler flow measurement system Sep. 17, 1996
5515857 Ultrasonic diagnostic apparatus May. 14, 1996
5505204 Ultrasonic blood volume flow rate meter Apr. 9, 1996
5501224 Ultrasonic diagnostic apparatus Mar. 26, 1996
5495852 Method and apparatus for estimating diameter of an artery using B-mode ultrasonic images Mar. 5, 1996
5474073 Ultrasonic diagnostic scanning for three dimensional display Dec. 12, 1995
5465721 Ultrasonic diagnostic apparatus and ultrasonic diagnosis method Nov. 14, 1995
5406948 Flowmeters Apr. 18, 1995
5379771 Ultrasonic imaging apparatus Jan. 10, 1995
5365929 Multiple sample volume spectral Doppler Nov. 22, 1994
5333614 Measurement of absolute vascular flow Aug. 2, 1994
5322067 Method and apparatus for determining the volume of a body cavity in real time Jun. 21, 1994
5320105 Ultrasonic echograph for measuring high velocities of blood flows Jun. 14, 1994
5280787 Ultrasonic method and apparaus for determination of vessel location and size Jan. 25, 1994
5235985 Automatic bladder scanning apparatus Aug. 17, 1993
5224483 Adaptive contrast enhancement for scanned ultrasonic image Jul. 6, 1993
5224482 Ultrasound high velocity flow correlation measurement using coded pulses Jul. 6, 1993
5211169 Blood pool imaging and analysis technique using ultrasound May. 18, 1993
5203337 Coronary artery imaging system Apr. 20, 1993
5199437 Ultrasonic imager Apr. 6, 1993
5195521 Tissue measurements Mar. 23, 1993
5139020 Method and apparatus for controlling the hemodynamic state of a patient based on systolic time interval measurements detecting using doppler ultrasound techniques Aug. 18, 1992
5078148 Apparatus and method for continuously measuring volumetric blood flow using multiple transducers and catheter for use therewith Jan. 7, 1992
5062427 Ultrasonic doppler apparatus Nov. 5, 1991
5052395 Non-invasive ultrasonic pulse doppler cardiac output monitor Oct. 1, 1991
4913159 Method for determining blood flow through a narrowed orifice using color doppler echocardiography Apr. 3, 1990
4873985 Ultrasonic imaging apparatus utilizing doppler flow metering Oct. 17, 1989
4807636 Method and apparatus for measuring volume fluid flow Feb. 28, 1989
4790322 Ultrasonic type blood flow amount measuring apparatus Dec. 13, 1988
4784147 Method and apparatus for sidelobe suppression in scanning imaging systems Nov. 15, 1988
4509526 Method and system for non-invasive ultrasound Doppler cardiac output measurement Apr. 9, 1985
4501279 Ultrasonic blood flow sensing apparatus Feb. 26, 1985
4476874 Ultrasonic imaging with volume flow measuring method and apparatus Oct. 16, 1984
4431936 Transducer structure for generating uniform and focused ultrasonic beams and applications thereof Feb. 14, 1984
4373533 Ultrasonic diagnosing apparatus Feb. 15, 1983
4370985 Medical measuring apparatus Feb. 1, 1983
4259870 Doppler method of measuring flow Apr. 7, 1981
4103679 Method and apparatus for measuring blood flow noninvasively Aug. 1, 1978
4095597 Arrangement for measuring cross-sectional fluctuations of conduits streamed through by fluids and for supplying indications of volumetric flow and/or conduit elasticity based thereon Jun. 20, 1978

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