Patents by Inventor Francis G. Duhaylongsod

Francis G. Duhaylongsod 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: 6711436
    Abstract: Methods are provided for conducting diagnostic or therapeutic medical or surgical procedures in a patient wherein, during the procedure, autonomous ventricular electrical conductivity and escape beats are reversibly and transiently suppressed to facilitate the procedure. Also provided are compositions which are capable of inducing ventricular asystole in a patient. The compositions may include an atrioventricular (AV) node blocker. In one embodiment, compositions including an AV node blocker and a &bgr;-blocker are provided, wherein the &bgr;-blocker is present in an amount sufficient to substantially reduce the amount of AV node blocker required to induce ventricular asystole in the patient. The compositions and methods may be used for inducing temporary ventricular asystole in a beating heart, and to facilitate the performance of a variety of techniques, including minimally invasive microsurgical techniques.
    Type: Grant
    Filed: September 27, 1999
    Date of Patent: March 23, 2004
    Assignee: Duke University
    Inventor: Francis G. Duhaylongsod
  • Publication number: 20030130671
    Abstract: A method for coupling a first vessel and a second vessel in an anastomosis. The method includes providing a first vessel with a fastener coupled thereto, inserting at least a portion of the device into the second vessel with an end portion of the fastener extending generally longitudinally through the second vessel, and radially expanding at least a portion of the fastener to sealingly secure the first vessel to an inner wall of the second vessel. An anastomosis fastener for use in coupling the first and second vessels together is also disclosed. The second vessel has an opening formed in a side wall thereof for insertion of the device. The device includes a tubular member at least a portion thereof being radially expandable.
    Type: Application
    Filed: November 4, 2002
    Publication date: July 10, 2003
    Inventors: Francis G. Duhaylongsod, Fritz French
  • Patent number: 6414018
    Abstract: Methods are provided for conducting surgical procedures in a patient wherein, during the surgical procedure, autonomous ventricular electrical conductivity and escape beats are reversibly and transiently suppressed to facilitate the surgical procedure. Also provided are compositions which are capable of inducing ventricular asystole in a patient. The compositions may include an AV node blocker. In one embodiment, compositions including an atrioventricular (AV) node blocker and a &bgr;-blocker are provided, wherein the &bgr;-blocker is present in an amount sufficient to substantially reduce the amount of AV node blocker required to induce ventricular asystole in the patient. The compositions and methods may be used for inducing temporary ventricular asystole in a beating heart, and to facilitate the performance of a variety of surgical techniques, including minimally invasive microsurgical techniques.
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: July 2, 2002
    Assignee: Duke University
    Inventor: Francis G. Duhaylongsod
  • Patent number: 6387047
    Abstract: In one embodiment, the present invention relates to a low profile support member for a surgical retraction apparatus which includes a support member in which a lower portion of the support member has a rectilinear portion for insertion into an anchoring receptacle; an upper portion of the support member has a first horizontal extension; a splined coupling adaptor connects together the lower and upper portions, in which the splined coupling adaptor includes a splined segment having a key-like splined portion and a lock-like splined portion; and an extender portion having both a vertical extension and a second horizontal extension. The extender portion is mountable on the first horizontal extension.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: May 14, 2002
    Assignee: Rultract, Inc.
    Inventors: Francis G. Duhaylongsod, Janice Lee Rullo, William John Koteles
  • Publication number: 20020052597
    Abstract: A method of identifying vasculature comprising the steps of introducing an indicator in a peripheral vessel, and advancing a portion of the indicator into an internal vessel to identify said vessel. A catheter for identifying vasculature is also disclosed. The catheter is adapted to be introduced into a peripheral vessel and a portion thereof advanced into an internal vessel. The catheter comprises a light delivery portion at a distal end thereof and an expandable member located proximal to the light delivery portion.
    Type: Application
    Filed: March 22, 2001
    Publication date: May 2, 2002
    Inventors: Francis G. Duhaylongsod, Hugh L. Narciso
  • Publication number: 20020042625
    Abstract: A perfusion-occlusion catheter provides an occluded region in a vessel to facilitate, for example, an anastomosis in the region, while providing a path for perfusing fluid (blood) through the path for delivery in the vessel downstream from the occluded region. According to one aspect of the invention, at least a portion of the catheter that effects vessel occlusion comprises a shield that when exposed to suture needles or like piercing instruments deflects or resists perforation.
    Type: Application
    Filed: December 22, 2000
    Publication date: April 11, 2002
    Inventors: Richard S. Stack, Francis G. Duhaylongsod, Harry R. Phillips, Troy Chapman, Michael Hogendijk, Hugh L. Narciso
  • Publication number: 20020038120
    Abstract: A method of identifying vasculature comprising the steps of introducing an indicator in a peripheral vessel, and advancing a portion of the indicator into an internal vessel to identify said vessel. A catheter for identifying vasculature is also disclosed. The catheter is adapted to be introduced into a peripheral vessel and a portion thereof advanced into an internal vessel. The catheter comprises a light delivery portion at a distal end thereof and an expandable member located proximal to the light delivery portion.
    Type: Application
    Filed: March 21, 2001
    Publication date: March 28, 2002
    Inventors: Francis G. Duhaylongsod, Hugh L. Narciso
  • Patent number: 6241741
    Abstract: A method for coupling a first vessel and a second vessel in an anastomosis. The method includes providing a first vessel with a fastener coupled thereto, inserting at least a portion of the device into the second vessel with an end portion of the fastener extending generally longitudinally through the second vessel, and radially expanding at least a portion of the fastener to sealingly secure the first vessel to an inner wall of the second vessel. An anastomosis fastener for use in coupling the first and second vessels together is also disclosed. The second vessel has an opening formed in a side wall thereof for insertion of the device. The device includes a tubular member at least a portion thereof being radially expandable.
    Type: Grant
    Filed: March 9, 1998
    Date of Patent: June 5, 2001
    Assignee: Corvascular Surgical Systems, Inc.
    Inventors: Francis G. Duhaylongsod, Fritz French
  • Patent number: 6165196
    Abstract: A perfusion-occlusion catheter provides an occluded region in a vessel to facilitate, for example, an anastomosis in the region, while providing a path for perfusing fluid (blood) through the path for delivery in the vessel downstream from the occluded region. According to one aspect of the invention, at least a portion of the catheter that effects vessel occlusion comprises a shield that when exposed to suture needles or like piercing instruments deflects or resists perforation.
    Type: Grant
    Filed: September 25, 1998
    Date of Patent: December 26, 2000
    Assignees: Corvascular Surgical Systems, Inc., Duke University
    Inventors: Richard S. Stack, Francis G. Duhaylongsod, Harry R. Phillips, III, Troy Chapman, Michael Hogendijk, Hugh L. Narciso, Jr.
  • Patent number: 6141589
    Abstract: Methods are provided for conducting surgical procedures in a patient wherein, during the surgical procedure, autonomous ventricular electrical conductivity and escape beats are reversibly and transiently suppressed to facilitate the surgical procedure. Also provided are compositions which are capable of inducing ventricular asystole in a patient. The compositions may include an AV node blocker. In one embodiment, compositions including an atrioventricular (AV) node blocker and a .beta.-blocker are provided, wherein the .beta.-blocker is present in an amount sufficient to substantially reduce the amount of AV node blocker required to induce ventricular asystole in the patient. The compositions and methods may be used for inducing temporary ventricular asystole in a beating heart, and to facilitate the performance of a variety of surgical techniques, including minimally invasive microsurgical techniques.
    Type: Grant
    Filed: August 23, 1999
    Date of Patent: October 31, 2000
    Assignee: Duke University
    Inventor: Francis G. Duhaylongsod
  • Patent number: 6127410
    Abstract: Methods are provided for conducting surgical procedures in a patient wherein, during the surgical procedure, autonomous ventricular electrical conductivity and escape beats are reversibly and transiently suppressed to facilitate the surgical procedure. Also provided are compositions which are capable of inducing ventricular asystole in a patient. The compositions may include an AV node blocker. In one embodiment, compositions including an atrioventricular (AV) node blocker and a .beta.-blocker are provided, wherein the .beta.-blocker is present in an amount sufficient to substantially reduce the amount of AV node blocker required to induce ventricular asystole in the patient. The compositions and methods may be used for inducing temporary ventricular asystole in a beating heart, and to facilitate the performance of a variety of surgical techniques, including minimally invasive microsurgical techniques.
    Type: Grant
    Filed: August 23, 1999
    Date of Patent: October 3, 2000
    Assignee: Duke University
    Inventor: Francis G. Duhaylongsod
  • Patent number: 6113588
    Abstract: A method of identifying vasculature including the steps of introducing an indicator in a peripheral vessel, and advancing a portion of the indicator into an internal vessel to identify said vessel. A catheter for identifying vasculature is also disclosed. The catheter is adapted to be introduced into a peripheral vessel and a portion thereof advanced into an internal vessel. The catheter includes a light delivery portion at a distal end thereof and an expandable member located proximal to the light delivery portion.
    Type: Grant
    Filed: March 13, 1998
    Date of Patent: September 5, 2000
    Assignees: Corvascular, Inc., Duke University
    Inventors: Francis G. Duhaylongsod, Hugh L. Narciso, Jr.
  • Patent number: 6101412
    Abstract: Methods are provided for conducting surgical procedures in a patient wherein, during the surgical procedure, autonomous ventricular electrical conductivity and escape beats are reversibly and transiently suppressed to facilitate the surgical procedure. Also provided are compositions which are capable of inducing ventricular asystole in a patient. The compossitions may include an AV node blocker. In one embodiment, compositions including an atrioventricular (AV) node blocker and a .beta.-blocker are provided, wherein the .beta.-blocker is present in an amount sufficient to substantially reduce the amount of AV node blocker required to induce ventricular asystole in the patient. The compositions and methods may be used for inducing temporary ventricular asystole in a beating heart, and to facilitate the performance of a variety of surgical techniques, including minimally invasive microsurgical techniques.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: August 8, 2000
    Assignee: Duke University
    Inventor: Francis G. Duhaylongsod
  • Patent number: 6087394
    Abstract: Methods are provided for conducting surgical procedures in a patient wherein, during the surgical procedure, autonomous ventricular electrical conductivity and escape beats are reversibly and transiently suppressed to facilitate the surgical procedure. Also provided are compositions which are capable of inducing ventricular asystole in a patient. The compositions may include an AV node blocker. In one embodiment, compositions including an atrioventricular (AV) node blocker and a .beta.-blocker are provided, wherein the .beta.-blocker is present in an amount sufficient to substantially reduce the amount of AV node blocker required to induce ventricular asystole in the patient. The compositions and methods may be used for inducing temporary ventricular asystole in a beating heart, and to facilitate the performance of a variety of surgical techniques, including minimally invasive microsurgical techniques.
    Type: Grant
    Filed: August 23, 1999
    Date of Patent: July 11, 2000
    Assignee: Duke University
    Inventor: Francis G. Duhaylongsod
  • Patent number: 6060454
    Abstract: Methods are provided for conducting surgical procedures in a patient wherein, during the surgical procedure, autonomous ventricular electrical conductivity and escape beats are reversibly and transiently suppressed to facilitate the surgical procedure. Also provided are compositions which are capable of inducing ventricular asystole in a patient. The compositions may include an AV node blocker. In one embodiment, compositions including an atrioventricular (AV) node blocker and a .beta.-blocker are provided, wherein the .beta.-blocker is present in an amount sufficient to substantially reduce the amount of AV node blocker required to induce ventricular asystole in the patient. The compositions and methods may be used for inducing temporary ventricular asystole in a beating heart, and to facilitate the performance of a variety of surgical techniques, including minimally invasive microsurgical techniques.
    Type: Grant
    Filed: August 7, 1998
    Date of Patent: May 9, 2000
    Assignee: Duke University
    Inventor: Francis G. Duhaylongsod
  • Patent number: 6043273
    Abstract: Methods are provided for conducting surgical procedures in a patient wherein, during the surgical procedure, autonomous ventricular electrical conductivity and escape beats are reversibly and transiently suppressed to facilitate the surgical procedure. Also provided are compositions which are capable of inducing ventricular asystole in a patient. The compositions may include an AV node blocker. In one embodiment, compositions including an atrioventricular (AV) node blocker and a .beta.-blocker are provided, wherein the .beta.-blocker is present in an amount sufficient to substantially reduce the amount of AV node blocker required to induce ventricular asystole in the patient. The compositions and methods may be used for inducing temporary ventricular asystole in a beating heart, and to facilitate the performance of a variety of surgical techniques, including minimally invasive microsurgical techniques.
    Type: Grant
    Filed: August 23, 1999
    Date of Patent: March 28, 2000
    Assignee: Duke University
    Inventor: Francis G. Duhaylongsod