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4979513 Ultrasonic diagnostic apparatus
Ultrasound in Med. & Biol. Vol. 18, No. 4, pp. 427-428, 1992
0301-5629/92 $5.00 + .00 © 1992 Pergamon Press Ltd.
Printed in the U.S.A.
NEW PATENTS
This section contains abstracts and, where appropriate, illustrations of recently issued United States patents and published patent applications filed from over 30 countries under the Patent Cooperation Treaty. This information was obtained from recent additions to the PATSEARCH ® online database in accordance with interest profiles developed by the Editors.
Further information about online patent searching can be obtained from Research on Demand, Inc., 2421 Fourth Street, Ste. C., Berkeley, CA 94710, USA (telephone: 510-841 1145; fax: 510-841 6311).
4977897
are fixed at one end of the capsule and extend axially through the tubular shaft for connection to the transducer. Position sensing means are incorporated within the capsule. The construction enables the capsule to be highly miniaturized and greatly improved relative to known devices of its type.
AMNIOCENTESIS NEEDLE WITH IMPROVED SONOGRAPHIC VISIBILITY Rober Hurwitz Disclosed is a medical cannula or amniocentesis needle o f improved sonographic visibility. The invention comprises a needle or cannula having one or more sounding apertures formed therein. The diameter of each sounding aperture is substantially equal to a predetermined wavelength of an incident ultrasonic beam. As a result, the beam will diffract upon striking the sounding aperture and the resultant echo will ddiffuse isotropically therefrom, thereby improving the ultrasonic detectability thereof.
4979513 ULTRASONIC DIAGNOSTIC APPARATUS Ikuo Sakai, Nobuaki Furuya, Yasuhiro Nakamura, Masami Kawabuchi, Kawasaki, Japan assigned to Matsushita Electric Industrial Co Ltd Pulses of an ultrasonic wave beam are emitted into a body at a predetermined repetition period. Echo pulses of the ultrasonic wave beam are received via a plurality of different channels. Each of the received pulses is converted simultaneously into corresponding electric signals of the respective channels. A time-dependent change in a variation between the electric signals of the respective channels is derived. A component of a speed of moving matter within the body in a predetermined direction is calculated on the basis of the derived time-dependent change. The moving matter causes the echo pulses. The predetermined direction is perpendicular to a direction of travel of the ultrasonic wave beam pulses.
4977898 MINIATURIZED ENCAPSULATED ULTRASONIC TRANSDUCER Jack Schwarzschild, Russel L Uphoff, Christopher G Miller assigned to Hoffrel Instruments Inc An endoscope, especially for transesophageal echocardiography. An encapsulated ultrasonic transducer capsule is provided having a selfcontained electro-mechanical sector scanner. A sealed housing is formed which includes axially aligned tubular sections, one of magnetic material and the other o f acoustically transparent plastic. A tubular shaft is journalled axially within the housing for limited sector scanning rotation. A magnetic rotor is fixed to the shaft for operation within the magnetic housing section and a transducer element is fixed to the shaft within the other tubular section. Conductor wires for activating the transducer
4982339 HIGH SPEED TEXTURE DISCRIMINATOR FOR ULTRASONIC IMAGING Michael F Insana, Stephen W Smith, David Brown, Robert F Wagner assigned to The 427
0301-5629/92 $5.00 + .00 © 1992 Pergamon Press Ltd.
Printed in the U.S.A.
NEW PATENTS
This section contains abstracts and, where appropriate, illustrations of recently issued United States patents and published patent applications filed from over 30 countries under the Patent Cooperation Treaty. This information was obtained from recent additions to the PATSEARCH ® online database in accordance with interest profiles developed by the Editors.
Further information about online patent searching can be obtained from Research on Demand, Inc., 2421 Fourth Street, Ste. C., Berkeley, CA 94710, USA (telephone: 510-841 1145; fax: 510-841 6311).
4977897
are fixed at one end of the capsule and extend axially through the tubular shaft for connection to the transducer. Position sensing means are incorporated within the capsule. The construction enables the capsule to be highly miniaturized and greatly improved relative to known devices of its type.
AMNIOCENTESIS NEEDLE WITH IMPROVED SONOGRAPHIC VISIBILITY Rober Hurwitz Disclosed is a medical cannula or amniocentesis needle o f improved sonographic visibility. The invention comprises a needle or cannula having one or more sounding apertures formed therein. The diameter of each sounding aperture is substantially equal to a predetermined wavelength of an incident ultrasonic beam. As a result, the beam will diffract upon striking the sounding aperture and the resultant echo will ddiffuse isotropically therefrom, thereby improving the ultrasonic detectability thereof.
4979513 ULTRASONIC DIAGNOSTIC APPARATUS Ikuo Sakai, Nobuaki Furuya, Yasuhiro Nakamura, Masami Kawabuchi, Kawasaki, Japan assigned to Matsushita Electric Industrial Co Ltd Pulses of an ultrasonic wave beam are emitted into a body at a predetermined repetition period. Echo pulses of the ultrasonic wave beam are received via a plurality of different channels. Each of the received pulses is converted simultaneously into corresponding electric signals of the respective channels. A time-dependent change in a variation between the electric signals of the respective channels is derived. A component of a speed of moving matter within the body in a predetermined direction is calculated on the basis of the derived time-dependent change. The moving matter causes the echo pulses. The predetermined direction is perpendicular to a direction of travel of the ultrasonic wave beam pulses.
4977898 MINIATURIZED ENCAPSULATED ULTRASONIC TRANSDUCER Jack Schwarzschild, Russel L Uphoff, Christopher G Miller assigned to Hoffrel Instruments Inc An endoscope, especially for transesophageal echocardiography. An encapsulated ultrasonic transducer capsule is provided having a selfcontained electro-mechanical sector scanner. A sealed housing is formed which includes axially aligned tubular sections, one of magnetic material and the other o f acoustically transparent plastic. A tubular shaft is journalled axially within the housing for limited sector scanning rotation. A magnetic rotor is fixed to the shaft for operation within the magnetic housing section and a transducer element is fixed to the shaft within the other tubular section. Conductor wires for activating the transducer
4982339 HIGH SPEED TEXTURE DISCRIMINATOR FOR ULTRASONIC IMAGING Michael F Insana, Stephen W Smith, David Brown, Robert F Wagner assigned to The 427