Patents by Inventor Samuel Achilefu

Samuel Achilefu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8318133
    Abstract: The sensitivity and specificity of the optical modality can be enhanced by the use of highly absorbing compounds as contrast agents. Novel macrocyclic cyanine and indocyanine bioconjugates that absorb and emit light in the near infrared region of electromagnetic spectrum are disclosed. These compounds are especially useful for endoscopic, localized photoacoustic, and sonofluorescence imaging, detection and therapy of tumors and other abnormalities.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: November 27, 2012
    Assignee: Washington University in St. Louis
    Inventors: Samuel Achilefu, Yunpeng Ye
  • Patent number: 8053415
    Abstract: The present invention provides compounds that have motifs that target the compounds to cells that express integrins. In particular, the compounds have peptides with one or more RD motifs conjugated to an agent selected from an imaging agent and a targeting agent. The compounds may be used to detect, monitor and treat a variety of disorders mediated by integrins.
    Type: Grant
    Filed: January 20, 2006
    Date of Patent: November 8, 2011
    Assignee: Washington University in St. Louis
    Inventor: Samuel Achilefu
  • Publication number: 20110123450
    Abstract: The sensitivity and specificity of the optical modality can be enhanced by the use of highly absorbing compounds as contrast agents. Novel macrocyclic cyanine and indocyanine bioconjugates that absorb and emit light in the near infrared region of electromagnetic spectrum are disclosed. These compounds are especially useful for endoscopic, localized photoacoustic, and sonofluorescence imaging, detection and therapy of tumors and other abnormalities.
    Type: Application
    Filed: November 2, 2010
    Publication date: May 26, 2011
    Applicant: THE WASHINGTON UNIVERSITY
    Inventors: Samuel Achilefu, Yunpeng Ye
  • Patent number: 7850946
    Abstract: The sensitivity and specificity of the optical modality can be enhanced by the use of highly absorbing compounds as contrast agents. Novel macrocyclic cyanine and indocyanine bioconjugates that absorb and emit light in the near infrared region of electromagnetic spectrum are disclosed. These compounds are especially useful for endoscopic, localized photoacoustic, and sonofluorescence imaging, detection and therapy of tumors and other abnormalities.
    Type: Grant
    Filed: June 1, 2004
    Date of Patent: December 14, 2010
    Assignee: Washington University in St. Louis
    Inventors: Samuel Achilefu, Yunpeng Ye
  • Patent number: 7790144
    Abstract: Cyanine dye bioconjugates useful for diagnostic imaging and therapy are disclosed. The conjugates include several cyanine dyes with a variety of bis- and tetrakis (carboxylic acid) homologes. The compounds are be conjugated to bioactive peptides, carbohydrates, hormones, drugs, or other bioactive agents. The small size of the compounds allows more favorable delivery to tumor cells as compared to larger molecular weight imaging agents. The various dyes are useful over the range of 350 to 1,300 nm, the exact range being dependent upon the particular dye. The use of a biocompatible organic solvent such as dimethylsulfoxide helps to maintain the fluorescence of the compounds. The inventive compounds are useful for diagnostic imaging and therapy, in endoscopic applications for the detection of tumors and other abnormalities, for localized therapy, for photoacoustic tumor imaging, detection and therapy, and for sonofluorescence tumor imaging, detection and therapy.
    Type: Grant
    Filed: March 15, 2004
    Date of Patent: September 7, 2010
    Assignee: Mallinckrodt Inc.
    Inventors: Samuel Achilefu, Raghavan Rajagopalan, Richard B. Dorshow, Joseph Bugaj, Muthunadar P. Periasamy
  • Publication number: 20090304583
    Abstract: Novel tumor specific phototherapeutic and photodiagnostic agents are disclosed. The compounds consist of a carbocyanine dye for visualization, photosensitizer for photodynamic treatment, and tumor receptor-avid peptide for site-specific delivery of the probe and phototoxic agent to diseased tissues. A combination of these elements takes full advantage of the unique and efficient properties of each component for an effective patient care management.
    Type: Application
    Filed: December 22, 2008
    Publication date: December 10, 2009
    Inventors: Samuel Achilefu, Richard B. Dorshow, Raghavan Rajagopalan, Joseph E. Bugai
  • Patent number: 7608244
    Abstract: Highly hydrophilic indole and benzoindole derivatives that absorb and fluoresce in the visible region of light are disclosed. These compounds are useful for physiological and organ function monitoring. Particularly, the molecules of the invention are useful for optical diagnosis of renal and cardiac diseases and for estimation of blood volume in vivo.
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: October 27, 2009
    Assignee: Mallinckrodt Inc.
    Inventors: Samuel Achilefu, Raghavan Rajagopalan, Richard B. Dorshow, Joseph E. Bugaj, Muthunadar P. Periasamy
  • Publication number: 20090263327
    Abstract: Highly hydrophilic indole and benzoindole derivatives that absorb and fluoresce in the visible region of light are disclosed. These compounds are useful for physiological and organ function monitoring. Particularly, the molecules of the invention are useful for optical diagnosis of renal and cardiac diseases and for estimation of blood volume in vivo.
    Type: Application
    Filed: June 1, 2009
    Publication date: October 22, 2009
    Applicant: Mallinckrodt Inc.
    Inventors: Samuel Achilefu, Raghavan Rajagopalan, Richard B. Dorshow, Joseph E. Bugaj, Muthunadar P. Periasamy
  • Publication number: 20090214436
    Abstract: The present invention provides dichromic fluorescent compounds, as well as processes for making and methods for using the dichromic fluorescent compounds.
    Type: Application
    Filed: February 13, 2009
    Publication date: August 27, 2009
    Applicant: Washington University
    Inventors: Samuel Achilefu, Zongren Zhang, Mikhail Berezin
  • Patent number: 7556797
    Abstract: Highly hydrophilic indole and benzoindole derivatives that absorb and fluoresce in the visible region of light are disclosed. These compounds are useful for physiological and organ function monitoring. Particularly, the molecules of the invention are useful for optical diagnosis of renal and cardiac diseases and for estimation of blood volume in vivo.
    Type: Grant
    Filed: September 2, 2003
    Date of Patent: July 7, 2009
    Assignee: Mallinckrodt Inc.
    Inventors: Samuel Achilefu, Raghavan Rajagopalan, Richard B. Dorshow, Joseph E. Bugaj, Muthunadar P. Periasamy
  • Publication number: 20090124792
    Abstract: The invention encompasses fluorescent cyanine dyes and methods of using such dyes. In particular, the invention encompasses near infrared polymethine cyanine dyes.
    Type: Application
    Filed: August 15, 2008
    Publication date: May 14, 2009
    Applicant: WASHINGTON UNIVERSITY IN ST. LOUIS
    Inventors: Samuel Achilefu, Hyeran Lee, John Christian Mason, Hyeran Lee
  • Patent number: 7510700
    Abstract: Novel tumor specific phototherapeutic and photodiagnostic agents are disclosed. The compounds consist of a carbocyanine dye for visualization, photosensitizer for photodynamic treatment, and tumor receptor-avid peptide for site-specific delivery of the probe and phototoxic agent to diseased tissues. A combination of these elements takes full advantage of the unique and efficient properties of each component for an effective patient care management.
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: March 31, 2009
    Assignee: Mallinckrodt Inc
    Inventors: Samuel Achilefu, Richard B. Dorshow, Raghavan Rajagopalan, Joseph B. Bugaj
  • Publication number: 20090028788
    Abstract: The present invention provides compounds that have motifs that target the compounds to cells that express integrins. In particular, the compounds have peptides with one or more RD motifs conjugated to an agent selected from an imaging agent and a targeting agent. The compounds may be used to detect, monitor and treat a variety of disorders mediated by integrins.
    Type: Application
    Filed: January 20, 2006
    Publication date: January 29, 2009
    Applicant: WASHINGTON UNIVERSITY IN ST. LOUIS
    Inventor: Samuel Achilefu
  • Patent number: 7468177
    Abstract: Highly hydrophilic indole and benzoindole derivatives that absorb and fluoresce in the visible region of light are disclosed. These compounds are useful for physiological and organ function monitoring. Particularly, the molecules of the invention are useful for optical diagnosis of renal and cardiac diseases and for estimation of blood volume in vivo.
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: December 23, 2008
    Assignee: Mallinckrodt Inc.
    Inventors: Samuel Achilefu, Raghavan Rajagopalan, Richard B. Dorshow, Joseph E. Bugaj, Muthunadar P. Periasamy
  • Patent number: 7438894
    Abstract: Highly hydrophilic indole and benzoindole derivatives that absorb and fluoresce in the visible region of light are disclosed. These compounds are useful for physiological and organ function monitoring. Particularly, the molecules of the invention are useful for optical diagnosis of renal and cardiac diseases and for estimation of blood volume in vivo.
    Type: Grant
    Filed: October 7, 2003
    Date of Patent: October 21, 2008
    Assignee: Mallinckrodt, Inc.
    Inventors: Samuel Achilefu, Raghavan Rajagopalan, Richard B. Dorshow, Joseph E. Bugaj, Muthunadar P. Periasamy
  • Publication number: 20080056989
    Abstract: Highly hydrophilic indole and benzoindole derivatives that absorb and fluoresce in the visible region of light are disclosed. These compounds are useful for physiological and organ function monitoring. Particularly, the molecules of the invention are useful for optical diagnosis of renal and cardiac diseases and for estimation of blood volume in vivo.
    Type: Application
    Filed: July 17, 2007
    Publication date: March 6, 2008
    Applicant: MALLINCKRODT, INC.
    Inventors: Samuel Achilefu, Raghavan Rajagopalan, Richard Dorshow, Joseph Bugaj, Muthunadar Periasamy
  • Publication number: 20080008655
    Abstract: Cyanine dye bioconjugates useful for diagnostic imaging and therapy are disclosed. The conjugates include several cyanine dyes with a variety of bis- and tetrakis (carboxylic acid) homologs. The compounds may be conjugated to bioactive peptides, carbohydrates, hormones, drugs, or other bioactive agents. The small size of the compounds allows more favorable delivery to tumor cells as compared to larger molecular weight imaging agents. The various dyes are useful over the range of 350 to 1300 nm, the exact range being dependent upon the particular dye. The use of dimethylsulfoxide helps to maintain the fluorescence of the compounds. The inventive compounds are useful for diagnostic imaging and therapy, in endoscopic applications for the detection of tumors and other abnormalities, for localized therapy, for photoacoustic tumor imaging, detection and therapy, and for sonofluoresence tumor imaging, detection and therapy.
    Type: Application
    Filed: March 5, 2007
    Publication date: January 10, 2008
    Applicant: MALLINCKRODT INC.
    Inventors: Samuel Achilefu, Raghavan Rajagopalan, Richard Dorshow, Joseph Bugaj, Muthunadar Periasamy
  • Publication number: 20070269368
    Abstract: Highly hydrophilic indole and benzoindole derivatives that absorb and fluoresce in the visible region of light are disclosed. These compounds are useful for physiological and organ function monitoring. Particularly, the molecules of the invention are useful for optical diagnosis of renal and cardiac diseases and for estimation of blood volume in vivo.
    Type: Application
    Filed: July 16, 2007
    Publication date: November 22, 2007
    Applicant: MALLINCKRODT, INC.
    Inventors: Samuel Achilefu, Raghavan Rajagopalan, Richard Dorshow, Joseph Bugaj, Muthunadar Periasamy
  • Publication number: 20070269373
    Abstract: Highly hydrophilic indole and benzoindole derivatives that absorb and fluoresce in the visible region of light are disclosed. These compounds are useful for physiological and organ function monitoring. Particularly, the molecules of the invention are useful for optical diagnosis of renal and cardiac diseases and for estimation of blood volume in vivo.
    Type: Application
    Filed: July 16, 2007
    Publication date: November 22, 2007
    Applicant: MALLINCKRODT, INC.
    Inventors: Samuel Achilefu, Raghavan Rajagopalan, Richard Dorshow, Joseph Bugaj, Muthunadar Periasamy
  • Patent number: 7297325
    Abstract: Highly hydrophilic indole and benzoindole derivatives that absorb and fluoresce in the visible region of light are disclosed. These compounds are useful for physiological and organ function monitoring. Particularly, the molecules of the invention are useful for optical diagnosis of renal and cardiac diseases and for estimation of blood volume in vivo.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: November 20, 2007
    Assignee: Mallinckrodt Inc.
    Inventors: Samuel Achilefu, Raghavan Rajagopalan, Richard B. Dorshow, Joseph E. Bugaj, Muthunadar P. Periasamy