- Email: [email protected]
4928698 Device for measuring the speed of moving organs and blood flows by correlation
Ultrasound in Med. & Biol.
0301~5629191 $3.00 + .OO 0 1991 Pergamon Press plc
Vol. 17. No. 5, pp. 541-542. 1991
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 Pergamon PATSEARCH ’ online database in accordance with interest profiles developed by the Editors. Further information about Pergamon PATSEARCH Kcan 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 oer CODV. Pavment with order is reauired. Orders outside North America add $2 for humb&’ for Pergamon Orbit Infoiine only.
4928698
Odile M A Bonnefous, Nogeni Sur Marne, France assigned to U S Philips Corporation A device for measuring the speed of moving organs and blood flows, comprising an intercorrelation circuit (100) which supplies on the basis of two successive shifted echographic lines, 21+ 1 correlation function values, and a multiplex/interpolation circuit (200) which supplies, on the basis of the correlation function values, an estimate of the speed and the value of the corresponding correlation peak. In accordance with the invention, the intercorrelation circuit (100) and multiplex/interpolation (200) circuit supply the estimate of the speed and the value of the correlation peak within each of N shift zones. On the other hand, the device also comprises a zerocrossing detector (300) which defines M segments which are limited by the values of the scanning depth for which the speed passes through zero in the set of N zones, a memory (400) storing the values Pij of the correlation peak corresponding to the ith zone (i = 1, . . . , N) and the jth segment (j = 1, . . . , M), a detector unit (500) reconstructing the speed profile searched by retaining for each segment j the speed profile in the zone i for which Pij is maximum.
4931047 METHOD AND APPARATUS FOR PROVIDING ENHANCED TISSUE FRAGMENTATION AND/OR HEMOSTASIS Alan Broadwin, Charles Vassallo, Joseph N Logan, Robert W Hornlein assigned to Cavitron Inc An apparatus having a vibratable tip for ultrasonically disintegrating tissue in a surgical procedure and for aspirating the disintegrated tissue and fluids away from the surgical site through an opening in the tip. A connection to an electrosurgical unit provides for delivery of RF cutting current, RF coagulating current or a blend thereof to the tip so that electrosurgical procedures can be conducted separately or aspiration with ultrasonic simultaneously through the tip. It thus is now possible, for ex-
4928699 ULTRASONIC DIAGNOSIS DEVICE Japan
assigned
Inc. for $8
An ultrasonic diagnosis device disclosed includes an endoscope with an ultrasonic diagnosis function, wherein an ultrasonic probe is arranged in the front end region of the portion to be inserted into a coelom or the like cavity, and is connected to an external rotational drive portion by a hollow multi-layered power transmission means to provide an observation field extending through the entire angular range. Signal wires from the probe and passed between outer and inner layers of the power transmission means which thus has a hollow center channel. Preferably, an observation optical system is arranged within the hollow channel to provide a visual field on the front side in the insertion direction, for a continuous confirmation purpose, permitting the insertion portion to be safely inserted even into a narrow cavity of an organ with a complex undulation.
DEVICE FOR MEASURING THE SPEED OF MOVING ORGANS AND BLOOD FLOWS BY CORRELATION
Tsuguhisa Sasai, Tokyo, Olympus Optical Co Ltd
Orbit InfoLine
air postage. Order by patent
to 541
0301~5629191 $3.00 + .OO 0 1991 Pergamon Press plc
Vol. 17. No. 5, pp. 541-542. 1991
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 Pergamon PATSEARCH ’ online database in accordance with interest profiles developed by the Editors. Further information about Pergamon PATSEARCH Kcan 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 oer CODV. Pavment with order is reauired. Orders outside North America add $2 for humb&’ for Pergamon Orbit Infoiine only.
4928698
Odile M A Bonnefous, Nogeni Sur Marne, France assigned to U S Philips Corporation A device for measuring the speed of moving organs and blood flows, comprising an intercorrelation circuit (100) which supplies on the basis of two successive shifted echographic lines, 21+ 1 correlation function values, and a multiplex/interpolation circuit (200) which supplies, on the basis of the correlation function values, an estimate of the speed and the value of the corresponding correlation peak. In accordance with the invention, the intercorrelation circuit (100) and multiplex/interpolation (200) circuit supply the estimate of the speed and the value of the correlation peak within each of N shift zones. On the other hand, the device also comprises a zerocrossing detector (300) which defines M segments which are limited by the values of the scanning depth for which the speed passes through zero in the set of N zones, a memory (400) storing the values Pij of the correlation peak corresponding to the ith zone (i = 1, . . . , N) and the jth segment (j = 1, . . . , M), a detector unit (500) reconstructing the speed profile searched by retaining for each segment j the speed profile in the zone i for which Pij is maximum.
4931047 METHOD AND APPARATUS FOR PROVIDING ENHANCED TISSUE FRAGMENTATION AND/OR HEMOSTASIS Alan Broadwin, Charles Vassallo, Joseph N Logan, Robert W Hornlein assigned to Cavitron Inc An apparatus having a vibratable tip for ultrasonically disintegrating tissue in a surgical procedure and for aspirating the disintegrated tissue and fluids away from the surgical site through an opening in the tip. A connection to an electrosurgical unit provides for delivery of RF cutting current, RF coagulating current or a blend thereof to the tip so that electrosurgical procedures can be conducted separately or aspiration with ultrasonic simultaneously through the tip. It thus is now possible, for ex-
4928699 ULTRASONIC DIAGNOSIS DEVICE Japan
assigned
Inc. for $8
An ultrasonic diagnosis device disclosed includes an endoscope with an ultrasonic diagnosis function, wherein an ultrasonic probe is arranged in the front end region of the portion to be inserted into a coelom or the like cavity, and is connected to an external rotational drive portion by a hollow multi-layered power transmission means to provide an observation field extending through the entire angular range. Signal wires from the probe and passed between outer and inner layers of the power transmission means which thus has a hollow center channel. Preferably, an observation optical system is arranged within the hollow channel to provide a visual field on the front side in the insertion direction, for a continuous confirmation purpose, permitting the insertion portion to be safely inserted even into a narrow cavity of an organ with a complex undulation.
DEVICE FOR MEASURING THE SPEED OF MOVING ORGANS AND BLOOD FLOWS BY CORRELATION
Tsuguhisa Sasai, Tokyo, Olympus Optical Co Ltd
Orbit InfoLine
air postage. Order by patent
to 541