Contains At Least One -c(=o)-n- Group Patents (Class 424/9.365)
  • Patent number: 6818203
    Abstract: The invention relates to the use of perfluoroalkyl-containing metal complexes that have a critical micelle formation concentration <10−3 mol/l, a hydrodynamic micelle diameter (2 Rh)>1 nm and a proton relaxivity in plasma (R1)>10 l/mmol·s) as contrast media in MR imaging for visualization of plaque, lymph nodes, infarcted and necrotic tissue and for independent visualization of necrotic tissue and tumor tissue.
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: November 16, 2004
    Assignee: Schering Aktiengesellschaft
    Inventors: Johannes Platzek, Peter Mareski, Ulrich Niedballa, Bernd Raduechel, Hanns-Joachim Weinmann, Bernd Misselwitz
  • Publication number: 20040208828
    Abstract: Enantiomer-pure compounds of general formulas VIIa and VIIb 1
    Type: Application
    Filed: February 4, 2004
    Publication date: October 21, 2004
    Inventors: Lutz Lehmann, Matthias Friebe, Thomas Brumby, Detlev Suelzle, Johannes Platzek
  • Patent number: 6803030
    Abstract: Compounds able to chelate paramagnetic metal ions and the use thereof as contrast agents in the technique known as “Magnetic Resonance Imaging” (M.R.I.).
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: October 12, 2004
    Assignee: Bracco Imaging S.p.A.
    Inventors: Christoph De Haen, Andrea Beltrami, Enrico Cappelletti, Luciano Lattuada, Mario Virtuani
  • Publication number: 20040086460
    Abstract: New types of hydroxamic acid-based bifunctional chelators are provided. These chelators are designed to chelate metal ions that can be detected either by their paramagnetic or radioactive properties. Conjugation with peptides or protein can be achieved by the presence of a linker moiety in the molecular structure of these chelators.
    Type: Application
    Filed: August 4, 2003
    Publication date: May 6, 2004
    Inventor: Jean-Marc DuFour
  • Patent number: 6676928
    Abstract: Perfluoroalkyl-containing complexes with polar radicals of general formula I (K)1-G-(Z-Rf)m(R)p  (I) in which R means the polar radical, Rf means a perfluorinated carbon chain, K is a metal complex, and Z represents a linker group, are suitable for intravenous lymphography, for tumor diagnosis and for infarction and necrosis imaging.
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: January 13, 2004
    Assignee: Schering Aktiengesellschaft
    Inventors: Johannes Platzek, Peter Mareski, Ulrich Niedballa, Bernd Raduechel, Hanns-Joachim Weinmann, Bernd Misselwitz
  • Publication number: 20030206858
    Abstract: Improved metal complex-containing pharmaceutical agents are described which, as an additive, contain one or more complexing agents and/or one or more weak metal complex(es) or mixtures thereof.
    Type: Application
    Filed: June 16, 2003
    Publication date: November 6, 2003
    Applicant: Schering AG
    Inventors: Heinz Gries, Ulrich Speck, Hanns-Joachim Weinmann, Hans Peter Niendorf, Wolfgang Seifert
  • Patent number: 6641797
    Abstract: Perfluoroalkyl-containing complexes with sugar radicals of general formula I in which R represents a monosaccharide or oligosaccharide radical that is bonded via the 1-OH position or 1-SH position, Rf means a perfluorinated carbon chain, K is a metal complex, and Y and Z represent linker groups, are suitable for intravenous lymphography, for tumor diagnosis and for infarction and necrosis imaging.
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: November 4, 2003
    Assignee: Schering Aktiengesellschaft
    Inventors: Johannes Platzek, Peter Mareski, Ulrich Niedballa, Bernd Raduechel, Hanns-Joachim Weinmann, Bernd Misselwitz
  • Publication number: 20030113267
    Abstract: This invention relates to the use of particular contrast agents to prepare diagostic compounds suitable for non-invasive visualisation under physiological conditions of the intestinal tract, and the colon in particular.
    Type: Application
    Filed: May 1, 2000
    Publication date: June 19, 2003
    Inventors: Michael V. Knopp, Frederik Giesel, Hendrik Von Tengg-Kobligk, Jannis Radeleff
  • Publication number: 20030103904
    Abstract: The use of contrast agents of molecular weight lower than 5000 Dalton and including at least one residue of a biliary acid for the preparation of diagnostic contrast compositions for the microvascular permeability assessment is disclosed.
    Type: Application
    Filed: October 24, 2002
    Publication date: June 5, 2003
    Inventors: Friedrich Cavagna, Timothy P L Roberts
  • Patent number: 6565830
    Abstract: Compounds of formula I wherein Z1, Z2, X, R2 and R3 are as defined herein, are suitable as susceptibility reagents for use in susceptibility imaging.
    Type: Grant
    Filed: March 10, 2000
    Date of Patent: May 20, 2003
    Assignee: Schering Aktiengesellschaft
    Inventors: Heinz Gries, Erich Klieger, Bernd Radüchel, Heribert Schmitt-Willich, Hanns-Joachim Weinmann, Hubert Vogler, Gabriele Schuhmann-Giampieri, Jürgen Conrad
  • Patent number: 6548044
    Abstract: The present invention relates to methods for contrast-enhanced imaging of sexual response. In particular, the present invention relates to methods of magnetic resonance imaging (MRI), computerized X-ray tomography (CT), ultrasound, and optical imaging using contrast agents to measure blood flow during sexual response, especially female sexual response. The invention relates to methods of analyzing normal sexual function and sexual dysfunction and provides a means for evaluating and screening potential therapeutic compounds for enhancing sexual function or treating sexual dysfunction.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: April 15, 2003
    Assignee: EPIX Medical, Inc.
    Inventors: Robert M. Weisskoff, Stephen C. Knight, Wayne Carter
  • Patent number: 6521209
    Abstract: The invention provides bifunctional detection agents comprising optical dyes covalently linked to at least one magnetic resonance image (MRI) contrast agent. These agents may include a linker, which may be either a coupling moiety or a polymer.
    Type: Grant
    Filed: August 1, 2000
    Date of Patent: February 18, 2003
    Assignee: California Institute of Technology
    Inventors: Thomas J. Meade, Scott E. Fraser, Russell E. Jacobs
  • Publication number: 20020168321
    Abstract: The invention relates to injectable compositions for increasing the image contrast between specific organ areas in the magnetic resonance imaging (MRI) of human and animal patients. This enables better differentiation of neighboring tissue portions. Methods of the preparation of such compositions and their use in the MRI of living subjects are also disclosed.
    Type: Application
    Filed: August 10, 1999
    Publication date: November 14, 2002
    Inventors: HERVE TOURNIER, ROLAND HYACINTHE
  • Publication number: 20020155065
    Abstract: A new process for the preparation of diethylenetriaminepentaacetic-monoamides in which amines can be reacted with sensitive groups, a higher mono/diamide selectivity is achieved, a higher yield of monoamide is achieved and has a simple reaction scheme and working-up.
    Type: Application
    Filed: January 28, 2002
    Publication date: October 24, 2002
    Applicant: Schering AG
    Inventors: Johannes Platzek, Ulrich Niedballa
  • Patent number: 6468502
    Abstract: The invention relates to new, monomeric, perfluoroalkyl-substituted metal complexes, processes for their production, and their use in diagnosis and therapy. The compounds according to the invention are suitable especially as in vivo contrast media in nuclear spin tomography (MRT). They can preferably be used as blood-pool agents and as lymphographic agents.
    Type: Grant
    Filed: November 8, 1999
    Date of Patent: October 22, 2002
    Assignee: Schering Aktiengesellschaft
    Inventors: Johannes Platzek, Ulrich Niedballa, Bernd Radüchel, Wolfgang Schlecker, Hanns-Joachim Weinmann, Thomas Frenzel, Bernd Misselwitz, Wolfgang Ebert
  • Patent number: 6461588
    Abstract: Blood pool imaging contrast agents containing paramagnetic bi- and tri-valent metal ion chelates of bile acid conjugates with molecules having chelating activity are used in magnetic resonance imaging of the vascular system and particularly the coronaries.
    Type: Grant
    Filed: May 26, 1999
    Date of Patent: October 8, 2002
    Assignee: Bracco Imaging S.p.A.
    Inventors: Pier Lucio Anelli, Marino Brocchetta, Christoph De Haen, Ornella Gazzotti, Luciano Lattuada, Giovanna Lux, Giuseppe Manfredi, Pierfrancesco Morosini, Daniela Palano, Michele Serleti, Fulvio Uggeri, Massimo Visigalli
  • Patent number: 6342598
    Abstract: Substituted polycarboxylic ligand molecules and corresponding metal complexes of said ligands, preferably paramagnetic metals complexes for generating responses in the field of magnetic resonance imaging (MRI). The paramagnetic complexes of the polycarboxylic ligands possess advantageous tensioactive properties and are useful as MRI contrast media in formulations for investigating the blood pool.
    Type: Grant
    Filed: November 24, 1999
    Date of Patent: January 29, 2002
    Assignee: Bracco International B.V.
    Inventors: Pier Lucio Anelli, Luciano Lattuada, Fulvio Uggeri, Giovanna Lux, Michele Serleti, Milena Gabellini, Hervé Tournier
  • Patent number: 6337064
    Abstract: Compounds of formula (I) both in the racemic and optically active forms, are used in MRI diagnostic imaging.
    Type: Grant
    Filed: September 25, 2000
    Date of Patent: January 8, 2002
    Assignee: Dibra S.p.A.
    Inventors: Marino Brocchetta, Luisella Calabi, Daniela Palano, Lino Paleari, Fulvio Uggeri
  • Patent number: 6287538
    Abstract: Chelate compounds of general formula I wherein X is a hydrogen atom and/or a metal ion equivalent of an element of atomic numbers 21-29, 31, 32, 37-40, 42-44, 49 or 57-83, and Z1, Z2, R1, R2, R3 and R4 are as defined herein, as well as their salts with inorganic and/or organic bases, amino acids or amino acid amides, are valuable pharmaceutical agents, e.g., for NMR imaging.
    Type: Grant
    Filed: April 28, 1998
    Date of Patent: September 11, 2001
    Assignee: Schering Aktiengesellschaft
    Inventors: Heinz Gries, Erich Klieger, Bernd Radüchel, Heribert Schmitt-Willich, Hanns-Joachim Weinmann, Hubert Vogler, Gabriele Schuhmann-Giampieri, Jürgen Conrad
  • Patent number: 6254850
    Abstract: The invention relates to diethylenetriaminepentaacetic acid derivatives, their complexes and complex salts, containing an element of atomic numbers 20-32, 39-51 or 57-83, pharmaceutical agents containing these compounds, their use as contrast media and antidotes and process for their production.
    Type: Grant
    Filed: January 10, 2000
    Date of Patent: July 3, 2001
    Assignee: Schering Aktiengesellschaft
    Inventors: Werner Krause, Franz-Karl Maier, Michael Bauer, Gabriele Schuhmann-Giampieri, Wolf-Rudiger Press, Peter Muschik
  • Patent number: 6248306
    Abstract: Cascade polymer complexes containing a) complexing ligands of general formula I A—{X—[Y—(Z—( W—Kw)z)y]x}a  (I)  in which A stands for a nitrogen-containing cascade nucleus of base multiplicity a, X and Y, independently of one another, stand for a direct bond or a cascade reproduction unit of reproduction multiplicity x or y, Z and W, independently of one another, stand for a cascade reproduction unit of reproduction multiplicity z or w, K stands for the radical of a complexing agent, a stands for numbers 2 to 12, x, y, z and w, independently of one another, stand for numbers 1 to 4, provided that at least two reproduction units are different and that 16≦a·x·y·z·w≦64 holds true for the product of the multiplicities, b) at least 16 ions of an element of atomic numbers 20 to 29, 39, 42, 44 or 57-83 and c) optionally cations of inorganic and/or organic bases, amino acids or amino acid amides are valuab
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: June 19, 2001
    Assignee: Schering Aktiengesellschaft
    Inventors: Heribert Schmitt-Willich, Johannes Platzek, Ulrich Niedballa, Bernd Raduchel, Andreas Muhler, Thomas Frenzel, Wolfgang Ebert
  • Patent number: 6232295
    Abstract: A delivery vehicle is described that is capable of being specifically bound to and taken into targeted cells, delivering numerous paramagnetic ions for magnetic resonance imaging (MRI) of the cells. The delivery vehicle comprises a polymeric molecule having a net positive charge complexed with another polymeric molecule having a net negative charge. Cell targeting moieties and MRI contrast agents are attached to one or both of the polymeric molecules. In one embodiment, the polymeric molecule having a net negative charge is a nucleic acid. Thus, the delivery vehicles can be used in clinical protocols in which nucleic acids for gene therapy and agents for MRI contrast are co-transported to specific cells allowing medical imaging monitoring of nucleic acid delivery.
    Type: Grant
    Filed: October 12, 1994
    Date of Patent: May 15, 2001
    Inventors: Jon Faiz Kayyem, Thomas J. Meade, Scott E. Fraser
  • Patent number: 6193950
    Abstract: Cascade polymers, containing complex-forming ligands, optionally at least five ions of an element of atomic numbers 21-29, 39, 42, 44 or 57-83, as well as, if desired, cations of inorganic and/or organic bases, amino acids or amino acid amides, are valuable complexing compounds and complexes for diagnostics and therapy.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: February 27, 2001
    Assignee: Schering AG
    Inventors: Johannes Platzek, Heribert Schmitt-Willich, Heinz Gries, Gabriele Schuhmann-Giampieri, Hubert Vogler, Hanns-Joachim Weinmann, Hans Bauer
  • Patent number: 6177060
    Abstract: Cascade polymer complexes with at least 16 ions of an element of atomic numbers 20 to 29, 39, 42, 44 or 57-83, useful NMR or x-ray lymphography imaging.
    Type: Grant
    Filed: March 19, 1998
    Date of Patent: January 23, 2001
    Assignee: Schering Aktiengeseuschaft
    Inventors: Heribert Schmitt-Willich, Johannes Platzek, Bernd Rad{umlaut over (u)}chel, Andreas M{umlaut over (u)}hler, Thomas Frenzel