Patents Assigned to Focus Surgery, Inc.
  • Patent number: 9095695
    Abstract: A method and apparatus is disclosed for determining the success of a proposed HIFU Treatment, of an ongoing HIFU Treatment, and/or of a completed HIFU Treatment. An energy density of a given HIFU Treatment may be used as a comparison factor between the given HIFU Treatment and other HIFU Treatments and as a predictor of the success of the given HIFU Treatment. One exemplary energy density is the amount of energy deposited in the treatment region divided by the volume of the treatment region. Another exemplary energy density is the amount of energy deposited in the treatment region divided by the pre-treatment mass of the treatment region. A method and apparatus is disclosed to detect the presence of focal hyperechoic features and non-focal hyperechoic features. A method and apparatus is disclosed to detect the presence of an acoustic obstruction.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: August 4, 2015
    Assignee: Focus Surgery, Inc.
    Inventors: Russell J. Fedewa, Toyoaki Uchida, Narendra T. Sanghvi, Roy F. Carlson
  • Publication number: 20130018260
    Abstract: A method of diagnosis and treatment of tumors using High Intensity Focused Ultrasound is provided. The method of diagnosing the presence of a tumor in a patient comprises the steps of subjecting a tumor to high intensity focused ultrasound (HIFU) to cause the tumor cells to release cellular material and evaluating the cellular material for a tumor marker. The method of treating a tumor in a patient can also comprise the step of subjecting a tumor to high intensity focused ultrasound (HIFU) to provoke an immune response.
    Type: Application
    Filed: August 10, 2012
    Publication date: January 17, 2013
    Applicant: FOCUS SURGERY, INC.
    Inventors: Narendra T. Sanghvi, Chandan Guha, Russell James Fedewa, Roy Francis Carlson, Ralf Seip, Wo-Hsing Chen
  • Patent number: 8235902
    Abstract: A method and apparatus is disclosed for determining the presence of tissue change due to exposure to HIFU Therapy.
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: August 7, 2012
    Assignee: Focus Surgery, Inc.
    Inventors: Wo-Hsing Chen, Roy Carlson, Clint C. Weis, Ralf Seip, Narendra T. Sanghvi
  • Publication number: 20120150035
    Abstract: A HIFU System (100) is disclosed which may automatically generate a proposed treatment plan for treating a tissue treatment area (10) with HIFU Therapy. In one example, the proposed treatment plan includes a plurality of treatment sites selected based on a three-dimensional model generated from ultrasound data. In another example, the proposed treatment plan excludes portions of the tissue treatment area (10) corresponding to blood flow, such as the neuro-vascular bundles (20) when treating the prostate (11).
    Type: Application
    Filed: February 15, 2012
    Publication date: June 14, 2012
    Applicant: FOCUS SURGERY INC.
    Inventors: Ralf Seip, Wo-Hsing Chen, Roy F. Carlson, Narendra T. Sanghvi, Kris A. Dines, Michael A. Penna, Richard Pfile
  • Publication number: 20120035473
    Abstract: A high-intensity focused ultrasound ablation of tissue using minimally invasive medical procedures is provided.
    Type: Application
    Filed: December 29, 2010
    Publication date: February 9, 2012
    Applicant: FOCUS SURGERY, INC.
    Inventors: Narendra T. Sanghvi, Ralf Seip, Russell J. Fedewa, Roy F. Carlson, Wo-Hsing Chen, Artur P. Katny
  • Publication number: 20110201976
    Abstract: A high-intensity focused ultrasound ablation of tissue using minimally invasive medical procedures is provided.
    Type: Application
    Filed: April 25, 2011
    Publication date: August 18, 2011
    Applicant: FOCUS SURGERY, INC.
    Inventors: Narendra T. Sanghvi, Ralf Seip, Russell J. Fedewa, Roy F. Carlson, Wo-Hsing Chen, Artur P. Katny, Paul W. Mikus, Dan Voic
  • Patent number: 7662114
    Abstract: Ultrasound transducers are disclosed which focus acoustic energy at various focal locations while minimizing focal spot degradation and the generation of unwanted on-axis or off-axis energy concentrations through using a generally constant f-number at the various focal locations.
    Type: Grant
    Filed: March 2, 2005
    Date of Patent: February 16, 2010
    Assignee: Focus Surgery, Inc.
    Inventors: Ralf Seip, Wo-Hsing Chen, Narendra T. Sanghvi
  • Patent number: 7559905
    Abstract: A HIFU system is disclosed including a fluid circulation system including a degasser.
    Type: Grant
    Filed: September 21, 2006
    Date of Patent: July 14, 2009
    Assignee: Focus Surgery, Inc.
    Inventors: Shuhei Kagosaki, Yutaka Shimazaki, Kenji Yamashita, Bernard J. Esarey, Artur P. Katny, Ralf Seip, Narendra T. Sanghvi
  • Publication number: 20090069677
    Abstract: A method and apparatus is disclosed for determining the presence of tissue change due to exposure to HIFU Therapy.
    Type: Application
    Filed: September 11, 2007
    Publication date: March 12, 2009
    Applicant: Focus Surgery, Inc.
    Inventors: WO-HSING CHEN, ROY CARLSON, CLINT C. WEIS, RALF SEIP, NARENDRA T. SANGHVI
  • Publication number: 20080091123
    Abstract: A method and apparatus is disclosed for determining the success of a proposed HIFU Treatment, of an ongoing HIFU Treatment, and/or of a completed HIFU Treatment. An energy density of a given HIFU Treatment may be used as a comparison factor between the given HIFU Treatment and other HIFU Treatments and as a predictor of the success of the given HIFU Treatment. One exemplary energy density is the amount of energy deposited in the treatment region divided by the volume of the treatment region. Another exemplary energy density is the amount of energy deposited in the treatment region divided by the pre-treatment mass of the treatment region. A method and apparatus is disclosed to detect the presence of focal hyperechoic features and non-focal hyperechoic features. A method and apparatus is disclosed to detect the presence of an acoustic obstruction.
    Type: Application
    Filed: October 23, 2007
    Publication date: April 17, 2008
    Applicant: Focus Surgery, Inc.
    Inventors: Russell Fedewa, Toyoaki Uchida, Narendra Sanghvi, Roy Carlson
  • Publication number: 20080091124
    Abstract: A method and apparatus is disclosed for determining the success of a proposed HIFU Treatment, of an ongoing HIFU Treatment, and/or of a completed HIFU Treatment. An energy density of a given HIFU Treatment may be used as a comparison factor between the given HIFU Treatment and other HIFU Treatments and as a predictor of the success of the given HIFU Treatment. One exemplary energy density is the amount of energy deposited in the treatment region divided by the volume of the treatment region. Another exemplary energy density is the amount of energy deposited in the treatment region divided by the pre-treatment mass of the treatment region. A method and apparatus is disclosed to detect the presence of focal hyperechoic features and non-focal hyperechoic features. A method and apparatus is disclosed to detect the presence of an acoustic obstruction.
    Type: Application
    Filed: October 23, 2007
    Publication date: April 17, 2008
    Applicant: Focus Surgery, Inc.
    Inventors: Russell Fedewa, Toyoaki Uchida, Narendra Sanghvi, Roy Carlson
  • Publication number: 20070219448
    Abstract: A IIIFU System (100) is disclosed which may automatically generate a proposed treatment plan for treating a tissue treatment area (10) with HIFU Therapy. In one example, the proposed treatment plan includes a plurality of treatment sites selected based on a three-dimensional model generated from ultrasound data. In another example, the proposed treatment plan excludes portions of the tissue treatment area (10) corresponding to blood flow, such as the neuro-vascular bundles (20) when treating the prostate (11).
    Type: Application
    Filed: May 5, 2005
    Publication date: September 20, 2007
    Applicant: FOCUS SURGERY, INC.
    Inventors: Ralf Seip, Wo-Hsing Chen, Roy Carlson, Narendra Sanghv, Kris Dines, Michael Penna, Richard Pfile
  • Patent number: 6685640
    Abstract: An apparatus for ablating tissue within a treatment region includes an ultrasound treatment transducer (36, 36′) for orienting at a first longitudinal orientation and a first angular orientation (40, 42) within the treatment region (26), for orienting at the first longitudinal orientation and a second angular orientation (40, 42) within the treatment region, and for orienting at a second longitudinal orientation and the first angular orientation (40, 42) within the treatment region, and a drive system for exciting (via conductors 46) the transducer (36, 36′) to ablate tissue (60) oriented adjacent the first longitudinal orientation and the first angular orientation within the treatment region (26), adjacent the first longitudinal orientation and the second angular orientation within the treatment region (26), and adjacent the second longitudinal orientation and the first angular orientation within the treatment region (26), respectively.
    Type: Grant
    Filed: September 28, 2000
    Date of Patent: February 3, 2004
    Assignee: Focus Surgery, Inc.
    Inventors: Francis J. Fry, Michael H. Phillips, Narendra T. Sanghvi
  • Patent number: 6093883
    Abstract: A method of treatment by ultrasound comprises providing a first, ultrasound field intensity-to-voltage transducer sized for insertion into the vicinity of a treatment site and a second ultrasound treatment transducer. The free field intensities created by the second transducer in response to various second transducer exciting signal levels are determined. The first transducer outputs in the free field in response to various second transducer exciting signal levels are also determined. The first transducer is inserted into the vicinity of the treatment site, and the second transducer is positioned to create an ultrasound field at the treatment site. The distance from the second transducer to the first transducer is determined. An exciting signal is applied to the second transducer. The output of the first transducer is determined.
    Type: Grant
    Filed: February 22, 1999
    Date of Patent: July 25, 2000
    Assignee: Focus Surgery, Inc.
    Inventors: Narendra T. Sanghvi, Francis J. Fry, Carl W. Hennige, Claudio I. Zanelli
  • Patent number: 5873902
    Abstract: A method of treatment by ultrasound comprises providing a first, ultrasound field intensity-to-voltage transducer sized for insertion into the vicinity of a treatment site and a second ultrasound treatment transducer. The free field intensities created by the second transducer in response to various second transducer exciting signal levels are determined. The first transducer outputs in the free field in response to various second transducer exciting signal levels are also determined. The first transducer is inserted into the vicinity of the treatment site, and the second transducer is positioned to create an ultrasound field at the treatment site. The distance from the second transducer to the first transducer is determined. An exciting signal is applied to the second transducer. The output of the first transducer is determined.
    Type: Grant
    Filed: July 15, 1997
    Date of Patent: February 23, 1999
    Assignee: Focus Surgery, Inc.
    Inventors: Narendra T. Sanghvi, Francis J. Fry, Carl W. Hennige, Claudio I. Zanelli
  • Patent number: 5520188
    Abstract: A transducer for use in a localization and therapeutic ultrasound system. The transducer of the present invention includes multiple elements that are driven separately. The elements operate together to focus a continuous wave ultrasound beam at a focal zone that is at a variable distance from the elements. The transducer includes a mechanism to adjust the focal distance so that the focal zone may be moved to multiple depths.
    Type: Grant
    Filed: November 2, 1994
    Date of Patent: May 28, 1996
    Assignee: Focus Surgery Inc.
    Inventors: Carl W. Hennige, Stan DeMarta, Claudio I. Zanelli