Patents by Inventor Robert G. Hudgins

Robert G. Hudgins 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: 10350384
    Abstract: A cannula assembly for directing blood from the heart of a patient and a minimally invasive method of implanting the same. The cannula assembly includes a flexible cannula body having a proximal end and a distal end with a receiving portion, and a transseptal tip having a distal end and a proximal end with an engaging portion. First and second anchors are coupled to the transseptal tip and configured to be deployed from a contracted state to an expanded state. The engaging portion of the transseptal tip is operable to removably engage the receiving portion of the flexible cannula body in vivo.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: July 16, 2019
    Assignee: CircuLite, Inc.
    Inventors: Robert C. Farnan, Scott A. Olson, Elizabeth Jung, Andrew J. Dusbabek, Robert G. Hudgins
  • Publication number: 20180133379
    Abstract: A system for drawing blood from a heart of a patient, includes a blood pump, an outflow cannula and a flexible cannula assembly. The cannula assembly further includes a flexible cannula body including a proximal end, a distal end, an inner wall defining a lumen, and an outer wall. A tip is coupled with the distal end of the cannula body, and an anchor is coupled to the tip. The anchor is configured to engage an internal structure of the heart and resists movement of the cannula assembly in at least one direction along the flexible cannula body. A ring member is configured to be coupled to the heart wall and is positioned at least partially around the outer wall of the cannula body proximally relative to the tip. The ring member is further configured to provide hemostasis between the heart wall and the cannula body.
    Type: Application
    Filed: December 19, 2017
    Publication date: May 17, 2018
    Inventors: Robert C. FARNAN, Robert G. HUDGINS, John DOCKTER
  • Patent number: 9861728
    Abstract: A system for drawing blood from a heart of a patient, includes a blood pump, an outflow cannula and a flexible cannula assembly. The cannula assembly further includes a flexible cannula body including a proximal end, a distal end, an inner wall defining a lumen, and an outer wall. A tip is coupled with the distal end of the cannula body, and an anchor is coupled to the tip. The anchor is configured to engage an internal structure of the heart and resists movement of the cannula assembly in at least one direction along the flexible cannula body. A ring member is configured to be coupled to the heart wall and is positioned at least partially around the outer wall of the cannula body proximally relative to the tip. The ring member is further configured to provide hemostasis between the heart wall and the cannula body.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: January 9, 2018
    Assignee: CircuLite, Inc.
    Inventors: Robert C. Farnan, Robert G. Hudgins, John Dockter
  • Patent number: 9211367
    Abstract: A cannula assembly, further comprising a cannula body for directing blood from the heart of a patient, having distal and proximal ends and a lumen therebetween. A tip coupled to the distal end of the body, the tip having an opening. A pump for drawing blood into the cannula assembly and dispensing the blood from the cannula assembly and into the patient circulatory system. The lumen of the cannula body further comprises a first inner diameter at the proximal end and a second inner diameter at the distal end, the first inner diameter being larger than the second inner diameter. A tapered portion defined as a decrease in inner diameter from the first inner diameter to the second inner diameter between the proximal and distal ends, the tapered portion configured to prevent cavitation of the blood within the cannula.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: December 15, 2015
    Assignee: CircuLite, Inc.
    Inventors: Robert C. Farnan, Scott A. Olson, Elizabeth Jung, Andrew J. Dusbabek, Robert G. Hudgins
  • Publication number: 20150335801
    Abstract: A system for drawing blood from a heart of a patient, includes a blood pump, an outflow cannula and a flexible cannula assembly. The cannula assembly further includes a flexible cannula body including a proximal end, a distal end, an inner wall defining a lumen, and an outer wall. A tip is coupled with the distal end of the cannula body, and an anchor is coupled to the tip. The anchor is configured to engage an internal structure of the heart and resists movement of the cannula assembly in at least one direction along the flexible cannula body. A ring member is configured to be coupled to the heart wall and is positioned at least partially around the outer wall of the cannula body proximally relative to the tip. The ring member is further configured to provide hemostasis between the heart wall and the cannula body.
    Type: Application
    Filed: May 19, 2015
    Publication date: November 26, 2015
    Inventors: Robert C. Farnan, Robert G. Hudgins, John Dockter
  • Publication number: 20150224240
    Abstract: A cannula assembly, further comprising a cannula body for directing blood from the heart of a patient, having distal and proximal ends and a lumen therebetween. A tip coupled to the distal end of the body, the tip having an opening. A pump for drawing blood into the cannula assembly and dispensing the blood from the cannula assembly and into the patient circulatory system. The lumen of the cannula body further comprises a first inner diameter at the proximal end and a second inner diameter at the distal end, the first inner diameter being larger than the second inner diameter. A tapered portion defined as a decrease in inner diameter from the first inner diameter to the second inner diameter between the proximal and distal ends, the tapered portion configured to prevent cavitation of the blood within the cannula.
    Type: Application
    Filed: April 28, 2015
    Publication date: August 13, 2015
    Applicant: CIRCULITE, INC.
    Inventors: Robert C. Farnan, Scott A. Olson, Elizabeth Jung, Andrew J. Dusbabek, Robert G. Hudgins
  • Patent number: 9022916
    Abstract: A cannula assembly, further comprising a cannula body for directing blood from the heart of a patient, having distal and proximal ends and a lumen therebetween. A tip coupled to the distal end of the body, the tip having an opening. A pump for drawing blood into the cannula assembly and dispensing the blood from the cannula assembly and into the patient circulatory system. The lumen of the cannula body further comprises a first inner diameter at the proximal end and a second inner diameter at the distal end, the first inner diameter being larger than the second inner diameter. A tapered portion defined as a decrease in inner diameter from the first inner diameter to the second inner diameter between the proximal and distal ends, the tapered portion configured to prevent cavitation of the blood within the cannula.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: May 5, 2015
    Assignee: Circulite, Inc.
    Inventors: Robert C. Farnan, Scott A. Olson, Elizabeth Jung, Andrew J. Dusbabek, Robert G. Hudgins
  • Publication number: 20140336445
    Abstract: A cannula assembly, further comprising a cannula body for directing blood from the heart of a patient, having distal and proximal ends and a lumen therebetween. A tip coupled to the distal end of the body, the tip having an opening. A pump for drawing blood into the cannula assembly and dispensing the blood from the cannula assembly and into the patient circulatory system. The lumen of the cannula body further comprises a first inner diameter at the proximal end and a second inner diameter at the distal end, the first inner diameter being larger than the second inner diameter. A tapered portion defined as a decrease in inner diameter from the first inner diameter to the second inner diameter between the proximal and distal ends, the tapered portion configured to prevent cavitation of the blood within the cannula.
    Type: Application
    Filed: June 30, 2014
    Publication date: November 13, 2014
    Inventors: Robert C. Farnan, Scott A. Olson, Elizabeth Jung, Andrew J. Dusbabek, Robert G. Hudgins
  • Patent number: 8821366
    Abstract: A cannula assembly, further comprising a cannula body for directing blood from the heart of a patient, having distal and proximal ends and a lumen therebetween. A tip coupled to the distal end of the body, the tip having an opening. A pump for drawing blood into the cannula assembly and dispensing the blood from the cannula assembly and into the patient circulatory system. The lumen of the cannula body further comprises a first inner diameter at the proximal end and a second inner diameter at the distal end, the first inner diameter being larger than the second inner diameter. A tapered portion defined as a decrease in inner diameter from the first inner diameter to the second inner diameter between the proximal and distal ends, the tapered portion configured to prevent cavitation of the blood within the cannula.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: September 2, 2014
    Assignee: Circulite, Inc.
    Inventors: Robert C. Farnan, Scott A. Olson, Elizabeth Jung, Andrew J. Dusbabek, Robert G. Hudgins
  • Patent number: 8784291
    Abstract: A cannula assembly, further comprising a cannula body for directing blood from the heart of a patient, having distal and proximal ends and a lumen therebetween. A tip coupled to the distal end of the body, the tip having an opening. A pump for drawing blood into the cannula assembly and dispensing the blood from the cannula assembly and into the patient circulatory system. The lumen of the cannula body further comprises a first inner diameter at the proximal end and a second inner diameter at the distal end, the first inner diameter being larger than the second inner diameter. A tapered portion defined as a decrease in inner diameter from the first inner diameter to the second inner diameter between the proximal and distal ends, the tapered portion configured to prevent cavitation of the blood within the cannula.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: July 22, 2014
    Assignee: Circulite, Inc.
    Inventors: Robert C. Farnan, Scott A. Olson, Elizabeth Jung, Andrew J. Dusbabeck, Robert G. Hudgins
  • Publication number: 20140200550
    Abstract: A cannula assembly for directing blood from the heart of a patient and a minimally invasive method of implanting the same. The cannula assembly includes a flexible cannula body having a proximal end and a distal end with a receiving portion, and a transseptal tip having a distal end and a proximal end with an engaging portion. First and second anchors are coupled to the transseptal tip and configured to be deployed from a contracted state to an expanded state. The engaging portion of the transseptal tip is operable to removably engage the receiving portion of the flexible cannula body in vivo.
    Type: Application
    Filed: February 27, 2014
    Publication date: July 17, 2014
    Applicant: CIRCULITE, INC.
    Inventors: Robert C. Farnan, Scott A. Olson, Elizabeth Jung, Andrew J. Dusbabek, Robert G. Hudgins
  • Patent number: 8641609
    Abstract: A method of thermally treating tissue during a surgical procedure where a surgical access device, including a body member having walls with at least one conduit therein, is inserted into the patient. A chilled fluid is circulated through the at least one conduit such that the tissue that is located proximate the body member is cooled. Alternatively, the body member may be constructed from a highly thermally conductive material such that heat energy is transmitted through the body from the tissue located proximate the body member and into a heat sink. The surgical device may include a first or second blade portions constructed from an inner and an outer shell having walls. Ribs located on the inner shell sealingly coupled to the inner wall of the outer shell to create the at least one conduit within the walls of the blade portion.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: February 4, 2014
    Assignee: Zimmer Spine, Inc.
    Inventors: Hugh D. Hestad, Robert G. Hudgins, John Dawson, Chris Hrabe, Thomas O. Viker
  • Publication number: 20130281760
    Abstract: A cannula assembly, further comprising a cannula body for directing blood from the heart of a patient, having distal and proximal ends and a lumen therebetween. A tip coupled to the distal end of the body, the tip having an opening. A pump for drawing blood into the cannula assembly and dispensing the blood from the cannula assembly and into the patient circulatory system. The lumen of the cannula body further comprises a first inner diameter at the proximal end and a second inner diameter at the distal end, the first inner diameter being larger than the second inner diameter. A tapered portion defined as a decrease in inner diameter from the first inner diameter to the second inner diameter between the proximal and distal ends, the tapered portion configured to prevent cavitation of the blood within the cannula.
    Type: Application
    Filed: June 27, 2013
    Publication date: October 24, 2013
    Inventors: Robert C. Farnan, Scott A. Olson, Elizabeth Jung, Andrew J. Dusbabek, Robert G. Hudgins
  • Publication number: 20130211538
    Abstract: An expandable surgical site access system and method for using the expandable surgical site access system to perform minimally invasive, percutaneous surgeries to access the spine or other bone structures, organs, or locations of the body is disclosed. In one embodiment, the surgical site access system includes an elongated, expandable stent that is particularly adapted to be deployed in a body during a surgical procedure to provide access to a surgical site within the body. The stent defines a working channel through the body from a point of entry to the surgical site.
    Type: Application
    Filed: January 8, 2013
    Publication date: August 15, 2013
    Inventors: Hugh D. Hestad, Zachary M. Hoffman, Robert G. Hudgins, John T. Maertens, Thomas O. Viker
  • Patent number: 8372131
    Abstract: An expandable surgical site access system and method for using the expandable surgical site access system to perform minimally invasive, percutaneous surgeries to access the spine or other bone structures, organs, or locations of the body is disclosed. In one embodiment, the surgical site access system includes an elongated, expandable stent that is particularly adapted to be deployed in a body during a surgical procedure to provide access to a surgical site within the body. The stent defines a working channel through the body from a point of entry to the surgical site.
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: February 12, 2013
    Inventors: Hugh D. Hestad, Zachary M. Hoffman, Robert G. Hudgins, John T. Maertens, Thomas O. Viker
  • Patent number: 8343029
    Abstract: A transseptal cannula assembly for directing blood from the heart of a patient and a minimally invasive method of implanting the same. The transseptal cannula assembly includes a flexible cannula body having proximal and distal portions with a lumen therebetween, a tip coupled to the distal portion of the flexible cannula body, and first and second anchors coupled to the tip. The anchors can be configured to be deployed from a contracted state to an expanded state and are configured to engage opposite sides of the heart tissue when in the expanded state. The anchors resist movement of the cannula assembly along a lengthwise central axis of the flexible cannula body.
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: January 1, 2013
    Assignee: Circulite, Inc.
    Inventors: Robert C. Farnan, Scott A. Olson, Elizabeth Jung, Andrew J. Dusbabek, Robert G. Hudgins
  • Patent number: 8333687
    Abstract: A transseptal cannula assembly for directing blood from the heart of a patient and a minimally invasive method of implanting the same. The transseptal cannula assembly includes a flexible cannula body having proximal and distal portions with a lumen therebetween, a tip coupled to the distal portion of the flexible cannula body, and first and second anchors coupled to the tip. The anchors can be configured to be deployed from a contracted state to an expanded state and are configured to engage opposite sides of the heart tissue when in the expanded state. The anchors resist movement of the cannula assembly along a lengthwise central axis of the flexible cannula body.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: December 18, 2012
    Assignee: Circulite, Inc.
    Inventors: Robert C. Farnan, Scott A. Olson, Elizabeth Jung, Andrew J. Dusbabek, Robert G. Hudgins
  • Publication number: 20110190567
    Abstract: A transseptal cannula assembly for directing blood from the heart of a patient and a minimally invasive method of implanting the same. The transseptal cannula assembly includes a flexible cannula body having proximal and distal portions with a lumen therebetween, a tip coupled to the distal portion of the flexible cannula body, and first and second anchors coupled to the tip. The anchors can be configured to be deployed from a contracted state to an expanded state and are configured to engage opposite sides of the heart tissue when in the expanded state. The anchors resist movement of the cannula assembly along a lengthwise central axis of the flexible cannula body.
    Type: Application
    Filed: April 18, 2011
    Publication date: August 4, 2011
    Applicant: CIRCULITE, INC.
    Inventors: Robert C. Farnan, Scott A. Olson, Elizabeth Jung, Andrew J. Dusbabek, Robert G. Hudgins
  • Publication number: 20100249491
    Abstract: A cannula assembly for directing blood from the heart of a patient and a minimally invasive method of implanting the same. The cannula assembly includes a flexible cannula body having a proximal end and a distal end with a receiving portion, and a transseptal tip having a distal end and a proximal end with an engaging portion. First and second anchors are coupled to the transseptal tip and configured to be deployed from a contracted state to an expanded state. The engaging portion of the transseptal tip is operable to removably engage the receiving portion of the flexible cannula body in vivo.
    Type: Application
    Filed: March 9, 2010
    Publication date: September 30, 2010
    Applicant: CIRCULITE, INC.
    Inventors: Robert C. Farnan, Scott A. Olson, Elizabeth Jung, Andrew J. Dusbabek, Robert G. Hudgins
  • Publication number: 20090118833
    Abstract: The present invention provides an expandable member useful in treating spinal stenosis. The expandable member may be introduced into the patient between adjacent spinous processes in an unexpanded configuration using minimally invasive techniques and expanded with a flowable material. The expanded member will function as an interspinous process spacer by acting as a spacing device to maintain separation between adjacent vertebrae.
    Type: Application
    Filed: November 5, 2007
    Publication date: May 7, 2009
    Applicant: ZIMMER SPINE, INC.
    Inventors: Robert G. Hudgins, Hugh D. Hestad