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Contrast medium for ultrasonic examinations and process for its preparation
Spectmchimica Acta, Vol. 45A, No. 11, pp. i-iv, 1989. Pergamon Press plc.Printed in Great Britain.
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@ 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.
4826313 METHOD
OF ANALYSIS
Rudolf W Schar, Rit Hofmann-Sievert, Aesch, Switzerland assigned to Ciba-Geigy Corporation The invention relates to a method of analyzing solutions and dispersions of dyes or their precursors and intermediates by optical and/or spectroscopic measurements, which method comprises using apparatus based on the principle of attenuated total reflection as sensor system. The advantage of the invention is that even highly concentrated, strongly colored solutions can be analyzed without prior dilution, as can also dye dispersions without separation of the solids content.
4832941 CONTRAST MEDIUM FOR ULTRASONIC EXAMINATIONS AND PROCESS FOR ITS PREPARATION Klaus Berwing, Marti Schlepper, Bad Nauheim, Federal Republic Of Germany assigned to MaxPlanck-Gesellschaft zur Forderung der Wissenschaften e V A constrast medium for ultrasonic examinations, in particular for echocardiography, based on a suspension of gas bubbles in a pharmacologically acceptable, aqueous liquid vehicle having a physiological electrolyte content, containing (A) a pharmacologically acceptable polyand/or a peptide and/or polysaccharide derivative thereof, (B) a pharmacologically acceptable vegetable oil and (C) a pharma-
cologically acceptable soluble iron(II1) salt, and a process for its preparation. This contrast medium is able to penetrate the pulmonary capillaries and thus makes possible, after intravenous injection, inter alia echocardiographic examination of the left ventricle.
4834089 ADAPTER
FOR BRAIN SURGERY
John P Koivukangas, 90250 Oulu, Finland
Seppo V Noponen,
SF
The invention relates to a neurosurgical auxiliary apparatus or a brain surgery adapter (150) for neurosurgical procedures carried out through a craniotomy opening, such as imaging and/or tumor resection. The brain surgery adapter (150) comprises an adapter frame (30) arranged to be clamped and sealed (20) to the edges of the craniotomy opening (6); a preferably turnable imaging plate (70) which comprises a slide space and which is arranged to be fitted in the frame and locked in position; and an ultrasonic transducer (120) which is fitted in a transducer socket (110) provided in the slide space of the imaging plate. When the adapter according to the invention is used, the ultrasonic transducer need not be supported manually. The adapter defines a closed liquid space, and it can also be provided with instruments for performing a neurosurgical operation, such as tumor resection. Imagings are carried out by means of the brain surgery adapter according to the invention in a determined imaging plane and the obtained images are accurately determined and comparable with each other irrespective of the fact that the tissue adapts itself during the tumor resection.
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@ 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.
4826313 METHOD
OF ANALYSIS
Rudolf W Schar, Rit Hofmann-Sievert, Aesch, Switzerland assigned to Ciba-Geigy Corporation The invention relates to a method of analyzing solutions and dispersions of dyes or their precursors and intermediates by optical and/or spectroscopic measurements, which method comprises using apparatus based on the principle of attenuated total reflection as sensor system. The advantage of the invention is that even highly concentrated, strongly colored solutions can be analyzed without prior dilution, as can also dye dispersions without separation of the solids content.
4832941 CONTRAST MEDIUM FOR ULTRASONIC EXAMINATIONS AND PROCESS FOR ITS PREPARATION Klaus Berwing, Marti Schlepper, Bad Nauheim, Federal Republic Of Germany assigned to MaxPlanck-Gesellschaft zur Forderung der Wissenschaften e V A constrast medium for ultrasonic examinations, in particular for echocardiography, based on a suspension of gas bubbles in a pharmacologically acceptable, aqueous liquid vehicle having a physiological electrolyte content, containing (A) a pharmacologically acceptable polyand/or a peptide and/or polysaccharide derivative thereof, (B) a pharmacologically acceptable vegetable oil and (C) a pharma-
cologically acceptable soluble iron(II1) salt, and a process for its preparation. This contrast medium is able to penetrate the pulmonary capillaries and thus makes possible, after intravenous injection, inter alia echocardiographic examination of the left ventricle.
4834089 ADAPTER
FOR BRAIN SURGERY
John P Koivukangas, 90250 Oulu, Finland
Seppo V Noponen,
SF
The invention relates to a neurosurgical auxiliary apparatus or a brain surgery adapter (150) for neurosurgical procedures carried out through a craniotomy opening, such as imaging and/or tumor resection. The brain surgery adapter (150) comprises an adapter frame (30) arranged to be clamped and sealed (20) to the edges of the craniotomy opening (6); a preferably turnable imaging plate (70) which comprises a slide space and which is arranged to be fitted in the frame and locked in position; and an ultrasonic transducer (120) which is fitted in a transducer socket (110) provided in the slide space of the imaging plate. When the adapter according to the invention is used, the ultrasonic transducer need not be supported manually. The adapter defines a closed liquid space, and it can also be provided with instruments for performing a neurosurgical operation, such as tumor resection. Imagings are carried out by means of the brain surgery adapter according to the invention in a determined imaging plane and the obtained images are accurately determined and comparable with each other irrespective of the fact that the tissue adapts itself during the tumor resection.