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4860758 Multiple diagnosable distance range ultrasonic diagnostic apparatus
Ultrasound in Med. & Biol. Vol. 16, No. 7, p. 739, 1990 0301-5629/90 $3.00 + .00 Printed in the U.S.A. (c) 1990 Pergamon Press pie. All rights reserved.
NEW P A T E N T S 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 Pergamon PATSEARCH ~ online database in accordance with interest profiles developed by the Editors. Further information about Pergamon PATSEARCH ~ can be obtained from Pergamon Orbit InfoLine Inc., 8000 Westpark Drive, McLean, Virginia 22102 U.S.A. Copies of complete patents announced in this Section are available from Pergamon Orbit InfoLine Inc. for $8 per copy. Payment with order is required. Orders outside North America add $2 for air postage. Order by patent number for Pergamon Orbit InfoLine only.
4860758
Therefore, only a selected one of the transmitting circuits supplies the drive pulse to the transducer. An ultrasonic echo signal received by the transducer is supplied to the diagnostic device to display a tomographic image.
MULTIPLE DIAGNOSABLE DISTANCE RANGE ULTRASONIC DIAGNOSTIC APPARATUS Yutaka Yanagawa, Akira Taniguchi, Tokyo, Japan assigned to Olympus Optical Co Ltd
4862893 ULTRASONIC
First and second ultrasonic transducers are provided at the distal end portion of a flexible insertion portion (to serve as a probe) of an endoscope. During diagnosis, the distal end portion of insertion portion is fixed in a tubular organ by a balloon which is filled with water. Ultrasonic lenses having different focal distances are mounted on the transducers. The resonance frequencies of the transducers differ from each other. The transducers are rotated about a shaft of the insertion portion by a motor, in order to mechanically radial-scan an object to be examined. A relay box for supplying a drive signal to the transducers is connected to the endoscope, and a diagnositc device with a display is connected to the relay box. The relay box includes first and second transmitting circuits, and output drive pulses therefrom are supplied to the transducers. The relay box also comprises a switch and a switching circuit connected to the transmitting circuits for selecting one of the transmitting circuits by operating the switch.
TRANSDUCER
Michael A Martinelli assigned to Intra-Sonix Inc A miniature transducer designed for use in a medical imaging system catheter probe is disclosed. The transducer has an electric cavity and coaxial construction for preventing electric fields from being emitted or received by the transducers. The construction of the transducer enables two to be mounted very close to one another on a thin catheter probe, one for transmitting acoustic pulses and the other for sensing echoes in response to the acoustic pulses, for imaging extremely close targets. The transducers can be secured to the catheter probe in such a way as to substantially acoustically isolate one from the other. A method of making the transducer by applying several electrically-conductive and insulating coatings and layers to a core in selected sequence so as to create a transducer having an electrical cavity, coaxial construction.
739
NEW P A T E N T S 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 Pergamon PATSEARCH ~ online database in accordance with interest profiles developed by the Editors. Further information about Pergamon PATSEARCH ~ can be obtained from Pergamon Orbit InfoLine Inc., 8000 Westpark Drive, McLean, Virginia 22102 U.S.A. Copies of complete patents announced in this Section are available from Pergamon Orbit InfoLine Inc. for $8 per copy. Payment with order is required. Orders outside North America add $2 for air postage. Order by patent number for Pergamon Orbit InfoLine only.
4860758
Therefore, only a selected one of the transmitting circuits supplies the drive pulse to the transducer. An ultrasonic echo signal received by the transducer is supplied to the diagnostic device to display a tomographic image.
MULTIPLE DIAGNOSABLE DISTANCE RANGE ULTRASONIC DIAGNOSTIC APPARATUS Yutaka Yanagawa, Akira Taniguchi, Tokyo, Japan assigned to Olympus Optical Co Ltd
4862893 ULTRASONIC
First and second ultrasonic transducers are provided at the distal end portion of a flexible insertion portion (to serve as a probe) of an endoscope. During diagnosis, the distal end portion of insertion portion is fixed in a tubular organ by a balloon which is filled with water. Ultrasonic lenses having different focal distances are mounted on the transducers. The resonance frequencies of the transducers differ from each other. The transducers are rotated about a shaft of the insertion portion by a motor, in order to mechanically radial-scan an object to be examined. A relay box for supplying a drive signal to the transducers is connected to the endoscope, and a diagnositc device with a display is connected to the relay box. The relay box includes first and second transmitting circuits, and output drive pulses therefrom are supplied to the transducers. The relay box also comprises a switch and a switching circuit connected to the transmitting circuits for selecting one of the transmitting circuits by operating the switch.
TRANSDUCER
Michael A Martinelli assigned to Intra-Sonix Inc A miniature transducer designed for use in a medical imaging system catheter probe is disclosed. The transducer has an electric cavity and coaxial construction for preventing electric fields from being emitted or received by the transducers. The construction of the transducer enables two to be mounted very close to one another on a thin catheter probe, one for transmitting acoustic pulses and the other for sensing echoes in response to the acoustic pulses, for imaging extremely close targets. The transducers can be secured to the catheter probe in such a way as to substantially acoustically isolate one from the other. A method of making the transducer by applying several electrically-conductive and insulating coatings and layers to a core in selected sequence so as to create a transducer having an electrical cavity, coaxial construction.
739