Patents by Inventor Youzhi Li

Youzhi Li 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).

  • Publication number: 20100280362
    Abstract: According to various embodiments, a tracheal tube may employ optical sensing techniques for determining a distance between the inserted tube and an anatomical structure, such as a carina. The distance information may provide an indication as to whether or not the tracheal tube is properly placed within the trachea. The optical techniques may include time of flight techniques.
    Type: Application
    Filed: May 4, 2009
    Publication date: November 4, 2010
    Applicant: Nellcor Puritan Bennett LLC
    Inventors: Youzhi Li, Edward McKenna, Andy Lin, Sarah Hayman
  • Publication number: 20100261996
    Abstract: According to various embodiments, a tracheal tube may employ optical sensing techniques for determining a distance between the inserted tube and an anatomical structure, such as a carina. The distance information may provide an indication as to whether or not the tracheal tube is properly placed within the trachea. The optical techniques may include backscattered intensity measurements.
    Type: Application
    Filed: April 8, 2009
    Publication date: October 14, 2010
    Applicant: Nellcor Puritan Bennett LLC
    Inventors: Youzhi Li, Edward McKenna, Andy Lin, Sarah Hayman
  • Publication number: 20100261995
    Abstract: According to various embodiments, a tracheal tube may employ optical sensing techniques for determining a distance between the inserted tube and an anatomical structure such as a carina. The distance information may provide an indication as to whether or not the tracheal tube is properly placed within the trachea. The optical techniques may include interferometry.
    Type: Application
    Filed: April 8, 2009
    Publication date: October 14, 2010
    Applicant: Nellcor Puritan Bennett LLC
    Inventors: Edward McKenna, Youzhi Li, Andy Lin, Sarah Hayman
  • Publication number: 20100081897
    Abstract: Present embodiments are directed to a monitor system, such as a pulse oximetry system. The system may include a detection feature, an emission feature capable of emitting light into tissue and arranged relative to the detection feature such that the detection feature is capable of detecting the light from the tissue after passing generally through a portion of the tissue, a modulator capable of modulating the light to generate photon density waves at a modulation frequency generally in a range of 50 MHz to 3 GHz, a detector communicatively coupled with the detection feature, wherein the detector is capable of detecting characteristics of the photon density waves comprising amplitude changes and phase shifts, and a processor capable of making determinations relating to a value of a physiologic parameter of the tissue based at least in part on the detected characteristics.
    Type: Application
    Filed: July 30, 2009
    Publication date: April 1, 2010
    Applicant: Nellcor Puritan Bennett LLC
    Inventors: Youzhi Li, Andy S. Lin, Edward M. McKenna
  • Patent number: 7649013
    Abstract: Administration of a modulator of cell cycle checkpoint activation, which is preferably ?-lapachone, or a pharmaceutically acceptable salt, prodrug, metabolite, analog or derivative thereof, protects normal cells against radiation injury. The invention includes methods of preventing radiation damage. The invention also provides methods for treating conditions such as cancer with radiotherapy, by administering a modulator of cell cycle checkpoint activation to a subject, prior to administration of radiotherapy.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: January 19, 2010
    Assignee: ArQule, Inc.
    Inventors: Chiang J. Li, Stephen A. Hill, YouZhi Li
  • Publication number: 20090208564
    Abstract: The present invention provides asymmetrical duplex RNA molecules that are capable of effecting sequence-specific gene silencing. The RNA molecule comprises a first strand and a second strand. The first strand is longer than the second strand. The RNA molecule comprises a double-stranded region formed by the first strand and the second strand, and two ends independently selected from the group consisting of 5?-overhang, 3?-overhang, and blunt end. The RNA molecules of the present invention can be used as research tools and/or therapeutics.
    Type: Application
    Filed: August 27, 2008
    Publication date: August 20, 2009
    Inventors: Chiang Jia Li, Xiangao Sun, Harry Rogoff, Youzhi Li
  • Publication number: 20080146584
    Abstract: Cancers and/or malignancies can be treated by administration of a cell cycle checkpoint activator, which is preferably ?-lapachone, or a derivative or analog thereof, combined with an oncogenic kinase modulator, preferably imatinib. This combination of the cell cycle checkpoint activator with the oncogenic kinase modulator results in an unexpectedly greater than additive (i.e., synergistic) apoptosis in cancer cells. The invention includes methods of treating cancers by administering the combination of the cell cycle checkpoint activator and the oncogenic kinase modulator, pharmaceutical compositions comprising the combination of drugs used in these methods, as well as pharmaceutical kits.
    Type: Application
    Filed: February 20, 2008
    Publication date: June 19, 2008
    Inventors: Chiang Li, Youzhi Li
  • Patent number: 7361691
    Abstract: Cancers and/or malignancies can be treated by administration of a cell cycle checkpoint activator, which is preferably ?-lapachone, or a derivative or analog thereof, combined with an oncogenic kinase modulator, preferably imatinib. This combination of the cell cycle checkpoint activator with the oncogenic kinase modulator results in an unexpectedly greater than additive (i.e., synergistic) apoptosis in cancer cells. The invention includes methods of treating cancers by administering the combination of the cell cycle checkpoint activator and the oncogenic kinase modulator, pharmaceutical compositions comprising the combination of drugs used in these methods, as well as pharmaceutical kits.
    Type: Grant
    Filed: December 2, 2003
    Date of Patent: April 22, 2008
    Assignee: Arqule, Inc.
    Inventors: Chiang Li, Youzhi Li
  • Publication number: 20060223880
    Abstract: Administration of a modulator of cell cycle checkpoint activation, which is preferably ?-lapachone, or a pharmaceutically acceptable salt, prodrug, metabolite, analog or derivative thereof, protects normal cells against radiation injury. The invention includes methods of preventing radiation damage. The invention also provides methods for treating conditions such as cancer with radiotherapy, by administering a modulator of cell cycle checkpoint activation to a subject, prior to administration of radiotherapy.
    Type: Application
    Filed: November 24, 2004
    Publication date: October 5, 2006
    Inventors: Chiang Li, Stephen Hill, YouZhi Li
  • Publication number: 20060183793
    Abstract: Multiple myeloma and other hematologic tumors and/or malignancies can be treated by administration of a G1 and/or S phase drug, which is preferably ?-lapachone, or a derivative or analog thereof, combined with a G2/M phase drug such as a taxane derivative, which is advantageously paclitaxel. This combination of the G1 and/or S phase drug with the G2/M phase drug results in an unexpectedly greater than additive (i.e., synergistic) apoptosis in multiple myeloma cells. The invention includes methods of treating multiple myeloma by administering the combination of the G1 and/or S phase drug and the G2/M phase drug, pharmaceutical compositions comprising the combination of drugs used in these methods, as well as pharmaceutical kits.
    Type: Application
    Filed: December 21, 2005
    Publication date: August 17, 2006
    Inventors: Arthur Pardee, Kenneth Anderson, Deepak Gupta, Chiang Li, Youzhi Li
  • Patent number: 7070797
    Abstract: Multiple myeloma and other hematologic tumors and/or malignancies can be treated by administration of a G1 and/or S phase drug, which is preferably ?-lapachone, or a derivative or analog thereof, combined with a G2/M phase drug such as a taxane derivative, which is advantageously paclitaxel. This combination of the G1 and/or S phase drug with the G2/M phase drug results in an unexpectedly greater than additive (i.e., synergistic) apoptosis in multiple myeloma cells. The invention includes methods of treating multiple myeloma by administering the combination of the G1 and/or S phase drug and the G2/M phase drug, pharmaceutical compositions comprising the combination of drugs used in these methods, as well as pharmaceutical kits.
    Type: Grant
    Filed: July 31, 2002
    Date of Patent: July 4, 2006
    Assignee: Dana Farber Cancer Institute, Inc.
    Inventors: Arthur B. Pardee, Kenneth Anderson, Deepak Gupta, Chiang Li, Youzhi Li
  • Publication number: 20060142271
    Abstract: The invention provides new synthetic lapacho derivatives as well as methods of use thereof. These compounds can be used in pharmaceutical compositions for the treatment or prevention of cell proliferation disorders. These compounds can also be used in the treatment or prevention of psoriasis or cancer or precancerous conditions.
    Type: Application
    Filed: September 17, 2003
    Publication date: June 29, 2006
    Inventors: Klaus Muller, Andreas Sellmer, June Salvesen, Chiang Li, Youzhi Li, Xianggao Sun
  • Publication number: 20050222246
    Abstract: The present invention provides for methods that utilize agents effective in the treatment of a wide range of cancerous and pre-cancerous conditions. Moreover, the present invention provides agents capable of acting as an inhibitor of cell proliferation in a broad range of cell types.
    Type: Application
    Filed: February 18, 2005
    Publication date: October 6, 2005
    Inventors: Chiang Li, YouZhi Li
  • Publication number: 20050197406
    Abstract: The present invention provides for methods that utilize agents effective in the treatment of lung cancer and pre-cancerous conditions of the lung. Moreover, the present invention provides agents capable of acting as an inhibitor of cell proliferation in lung cells.
    Type: Application
    Filed: February 18, 2005
    Publication date: September 8, 2005
    Inventors: Chiang Li, YouZhi Li
  • Publication number: 20050197405
    Abstract: The present invention provides for methods that utilize agents effective in the treatment of hematologic cancers and pre-cancerous hematologic cancer conditions. Moreover, the present invention provides agents capable of acting as an inhibitor of cell proliferation in hematologic cells.
    Type: Application
    Filed: February 18, 2005
    Publication date: September 8, 2005
    Inventors: Chiang Li, YouZhi Li
  • Publication number: 20050192361
    Abstract: The present invention provides for methods that utilize agents effective in the treatment of colon cancer and pre-cancerous conditions of the colon. Moreover, the present invention provides agents capable of acting as an inhibitor of cell proliferation in colon cells.
    Type: Application
    Filed: February 18, 2005
    Publication date: September 1, 2005
    Inventors: Chiang Li, YouZhi Li
  • Publication number: 20050192360
    Abstract: The present invention provides for methods that utilize agents effective in the treatment of pancreatic cancer and pre-cancerous pancreatic cancer conditions. Moreover, the present invention provides agents capable of acting as an inhibitor of cell proliferation in pancreas cells.
    Type: Application
    Filed: February 18, 2005
    Publication date: September 1, 2005
    Inventors: Chiang Li, YouZhi Li
  • Publication number: 20050171031
    Abstract: We have discovered that the administration of a G1 and/or S phase drug such as ?-lapachone in combination with a G2/M drug such as a taxane derivative such as paclitaxel resulted in a unexpected greater than additive (i.e., synergistic) reduction in the number of tumors (and tumor volume) as compared with the administration of these agents alone. In addition, no signs of toxicity or weight loss were observed. The present invention relates to a method for treating a mammalian tumor using combinations such as a taxane derivative, preferably paclitaxel, and a ?-lapachone, or a derivative or analog thereof.
    Type: Application
    Filed: March 1, 2005
    Publication date: August 4, 2005
    Inventors: Arthur Pardee, Chiang Li, Youzhi Li
  • Publication number: 20050119352
    Abstract: Cancers and/or malignancies can be treated by administration of a cell cycle checkpoint activator, which is preferably ?-lapachone, or a derivative or analog thereof, combined with an oncogenic kinase modulator, preferably imatinib. This combination of the cell cycle checkpoint activator with the oncogenic kinase modulator results in an unexpectedly greater than additive (i.e., synergistic) apoptosis in cancer cells. The invention includes methods of treating cancers by administering the combination of the cell cycle checkpoint activator and the oncogenic kinase modulator, pharmaceutical compositions comprising the combination of drugs used in these methods, as well as pharmaceutical kits.
    Type: Application
    Filed: December 2, 2003
    Publication date: June 2, 2005
    Inventors: Chiang Li, Youzhi Li
  • Patent number: 6875745
    Abstract: We have discovered that the administration of a G1 and/or S phase drug such as ?-lapachone in combination with a G2/M drug such as a taxane derivative such as paclitaxel resulted in a greater than additive (i.e., synergistic) reduction in the number of tumors (and tumor volume) as compared with the administration of these agents alone. In addition, no signs of toxicity or weight loss were observed. The present invention relates to a method for treating a mammalian tumor using combinations such as a taxane derivative, preferably paclitaxel, and a ?-lapachone, or a derivative or analog thereof.
    Type: Grant
    Filed: October 9, 2003
    Date of Patent: April 5, 2005
    Assignee: Dana Farber Cancer Institute, Inc.
    Inventors: Arthur B. Pardee, Chiang J. Li, Youzhi Li