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: 7252815
    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: May 17, 2004
    Date of Patent: August 7, 2007
    Assignee: Mallinckrodt, Inc.
    Inventors: Samuel Achilefu, Richard B. Dorshow, Raghavan Rajagopalan, Joseph E. Bugaj
  • Publication number: 20070140962
    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: February 12, 2007
    Publication date: June 21, 2007
    Applicant: MALLINCKRODT INC.
    Inventors: Samuel Achilefu, Raghaven Rajagopalan, Richard Dorshow, Joseph Bugaj, Hermo Jimenez, Muthunadar Periasamy
  • Publication number: 20070128115
    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: March 24, 2006
    Publication date: June 7, 2007
    Inventors: Samuel Achilefu, Richard Dorshow, Raghavan Rajagopalan, Joseph Bugaj
  • Publication number: 20070098638
    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 infrated 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: June 1, 2004
    Publication date: May 3, 2007
    Inventors: Samuel Achilefu, Yunpeng Ye
  • Publication number: 20070092450
    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: December 7, 2006
    Publication date: April 26, 2007
    Applicant: MALLINCKRODT INC.
    Inventors: Samuel Achilefu, Raghavan Rajagopalan, Richard Dorshow, Joseph Bugaj
  • Patent number: 7201892
    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: May 17, 2004
    Date of Patent: April 10, 2007
    Assignee: Mallinckrodt Inc.
    Inventors: Samuel Achilefu, Richard B. Dorshow, Raghavan Rajagopalan, Joseph E. Bugaj
  • Patent number: 7175831
    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: January 2, 2004
    Date of Patent: February 13, 2007
    Assignee: Mallinckrodt, Inc.
    Inventors: Samuel Achilefu, Raghavan Rajagopalan, Richard B. Dorshow, Joseph E. Bugaj, Hermo N. Jimenez, Muthunadar P. Periasamy
  • Patent number: 7128896
    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: May 17, 2004
    Date of Patent: October 31, 2006
    Assignee: Mallinckrodt Inc.
    Inventors: Samuel Achilefu, Richard B. Dorshow, Raghavan Rajagopalan, Joseph E. Bugaj
  • Publication number: 20060177457
    Abstract: The present invention discloses dye-sulfenate derivatives and their bioconjugates for dual phototherapy of tumors and other lesions. The compounds of the present invention may contain either a mixture of Type 1 and Type 2 agents or a single entity that integrates both units in the same molecules. The compounds are designed to produce both Type 1 and Type 2 phototherapeutic effect at once using dual wavelength light source that will produce singlet oxygen and free radicals at the lesion of interest.
    Type: Application
    Filed: March 21, 2006
    Publication date: August 10, 2006
    Applicant: Mallinckrodt Inc.
    Inventors: Raghavan Rajagopalan, Samuel Achilefu, Joseph Bugaj, Richard Dorshow
  • Publication number: 20050281741
    Abstract: Cyanine and Indocyanine dye compounds and bioconjugates are disclosed. The present invention includes several cyanine and indocyanine dyes, including bioconjugates of the same, with a variety of bis- and tetrakis (carboxylic acid) homologues. The compounds of the invention may be conjugated to bioactive peptides, carbohydrates, hormones, drugs, or other bioactive agents. The small size of compounds of the invention allows favorable delivery to tumor cells as compared to larger molecular weight imaging agents. Further, use of a biocompatible organic solvent such as dimethylsulfoxide may be said to assist in maintaining the fluorescence of compounds of the invention.
    Type: Application
    Filed: March 9, 2005
    Publication date: December 22, 2005
    Inventors: Samuel Achilefu, Raghavan Rajagopalan, Richard Dorshow, Joseph Bugaj, Muthunadar Periasamy
  • Publication number: 20050271592
    Abstract: Cyanine and indocyanine dye compounds and bioconjugates are disclosed. The present invention includes several cyanine and indocyanine dyes, including bioconjugates of the same, with a variety of bis- and tetrakis (carboxylic acid) homologues. The compounds of the invention may be conjugated to bioactive peptides, carbohydrates, hormones, drugs, or other bioactive agents. The small size of compounds of the invention allows favorable delivery to tumor cells as compared to larger molecular weight imaging agents. Further, use of a biocompatible organic solvent such as dimethylsulfoxide may be said to assist in maintaining the fluorescence of compounds of the invention.
    Type: Application
    Filed: June 6, 2005
    Publication date: December 8, 2005
    Inventors: Samuel Achilefu, Raghavan Rajagopalan, Richard Dorshow, Joseph Bugaj, Muthunadar Periasamy
  • Publication number: 20050201939
    Abstract: Dye-peptide conjugates useful for diagnostic imaging and therapy are disclosed. The dye-peptide conjugates include several cyanine dyes with a variety of bis- and tetrakis(carboxylic acid) homologues. 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 350-1300 nm, the exact range being dependent upon the particular dye. Use of dimethylsulfoxide helps to maintain the fluorescence of the compounds. The molecules of the invention are useful for diagnostic imaging and therapy, in endoscopic applications for the detection of tumors and other abnormalities and for localized therapy, for photoacoustic tumor imaging, detection and therapy, and for sonofluorescence tumor imaging, detection and therapy.
    Type: Application
    Filed: May 10, 2005
    Publication date: September 15, 2005
    Applicant: MALLINCKRODT INC.
    Inventors: Samuel Achilefu, Raghavan Rajagopalan, Richard Dorshow, Joseph Bugaj
  • Publication number: 20050163715
    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: March 17, 2005
    Publication date: July 28, 2005
    Applicant: MALLINCKRODT INC.
    Inventors: Samuel Achilefu, Hermo Jimenez, Raghavan Rajagopalan, Richard Dorshow, Joseph Bugaj
  • Patent number: 6887854
    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: May 13, 2003
    Date of Patent: May 3, 2005
    Assignee: Mallinckrodt Inc.
    Inventors: Samuel Achilefu, Hermo N. Jimenez, Raghavan Rajagopalan, Richard B. Dorshow, Joseph E. Bugai
  • Publication number: 20050031542
    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: May 17, 2004
    Publication date: February 10, 2005
    Applicant: MALLINCKRODT INC.
    Inventors: Samuel Achilefu, Richard Dorshow, Raghavan Rajagopalan, Joseph Bugaj
  • Publication number: 20040253182
    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: May 17, 2004
    Publication date: December 16, 2004
    Applicant: MALLINCKRODT INC.
    Inventors: Samuel Achilefu, Richard B. Dorshow, Raghavan Rajagopalan, Joseph E. Bugaj
  • Publication number: 20040241095
    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: Application
    Filed: March 15, 2004
    Publication date: December 2, 2004
    Applicant: Mallinckrodt Inc.
    Inventors: Samuel Achilefu, Raghavan Rajagopalan, Richard B. Dorshow, Joseph Bugaj, Muthunadar P. Periasamy
  • Publication number: 20040234454
    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: May 17, 2004
    Publication date: November 25, 2004
    Applicant: MALLINCKRODT INC.
    Inventors: Samuel Achilefu, Richard B. Dorshow, Raghavan Rajagopalan, Joseph E. Bugaj
  • Publication number: 20040223913
    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: December 23, 2003
    Publication date: November 11, 2004
    Applicant: Mallinckrodt, Inc.
    Inventors: Samuel Achilefu, Raghavan Rajagopalan, Richard B. Dorshow, Joseph E. Bugaj, Muthunadar P. Periasamy
  • Publication number: 20040213740
    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: January 2, 2004
    Publication date: October 28, 2004
    Applicant: Mallinckrodt Inc.
    Inventors: Samuel Achilefu, Raghavan Rajagopalan, Richard B. Dorshow, Joseph E. Bugaj, Hermo N. Jimenez, Muthunadar P. Periasamy