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).
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Patent number: 11154704Abstract: 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: GrantFiled: December 19, 2017Date of Patent: October 26, 2021Assignee: CircuLite, Inc.Inventors: Robert C. Farnan, Robert G. Hudgins, John Dockter
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Patent number: 10350384Abstract: 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: GrantFiled: February 27, 2014Date of Patent: July 16, 2019Assignee: CircuLite, Inc.Inventors: Robert C. Farnan, Scott A. Olson, Elizabeth Jung, Andrew J. Dusbabek, Robert G. Hudgins
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Publication number: 20180133379Abstract: 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: ApplicationFiled: December 19, 2017Publication date: May 17, 2018Inventors: Robert C. FARNAN, Robert G. HUDGINS, John DOCKTER
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Patent number: 9861728Abstract: 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: GrantFiled: May 19, 2015Date of Patent: January 9, 2018Assignee: CircuLite, Inc.Inventors: Robert C. Farnan, Robert G. Hudgins, John Dockter
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Patent number: 9211367Abstract: 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: GrantFiled: April 28, 2015Date of Patent: December 15, 2015Assignee: CircuLite, Inc.Inventors: Robert C. Farnan, Scott A. Olson, Elizabeth Jung, Andrew J. Dusbabek, Robert G. Hudgins
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Publication number: 20150335801Abstract: 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: ApplicationFiled: May 19, 2015Publication date: November 26, 2015Inventors: Robert C. Farnan, Robert G. Hudgins, John Dockter
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Publication number: 20150224240Abstract: 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: ApplicationFiled: April 28, 2015Publication date: August 13, 2015Applicant: CIRCULITE, INC.Inventors: Robert C. Farnan, Scott A. Olson, Elizabeth Jung, Andrew J. Dusbabek, Robert G. Hudgins
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Patent number: 9022916Abstract: 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: GrantFiled: June 30, 2014Date of Patent: May 5, 2015Assignee: Circulite, Inc.Inventors: Robert C. Farnan, Scott A. Olson, Elizabeth Jung, Andrew J. Dusbabek, Robert G. Hudgins
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Publication number: 20140336445Abstract: 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: ApplicationFiled: June 30, 2014Publication date: November 13, 2014Inventors: Robert C. Farnan, Scott A. Olson, Elizabeth Jung, Andrew J. Dusbabek, Robert G. Hudgins
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Patent number: 8821366Abstract: 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: GrantFiled: March 7, 2013Date of Patent: September 2, 2014Assignee: Circulite, Inc.Inventors: Robert C. Farnan, Scott A. Olson, Elizabeth Jung, Andrew J. Dusbabek, Robert G. Hudgins
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Patent number: 8784291Abstract: 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: GrantFiled: June 27, 2013Date of Patent: July 22, 2014Assignee: Circulite, Inc.Inventors: Robert C. Farnan, Scott A. Olson, Elizabeth Jung, Andrew J. Dusbabeck, Robert G. Hudgins
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Publication number: 20140200550Abstract: 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: ApplicationFiled: February 27, 2014Publication date: July 17, 2014Applicant: CIRCULITE, INC.Inventors: Robert C. Farnan, Scott A. Olson, Elizabeth Jung, Andrew J. Dusbabek, Robert G. Hudgins
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Patent number: 8641609Abstract: 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: GrantFiled: October 23, 2007Date of Patent: February 4, 2014Assignee: Zimmer Spine, Inc.Inventors: Hugh D. Hestad, Robert G. Hudgins, John Dawson, Chris Hrabe, Thomas O. Viker
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Publication number: 20130281760Abstract: 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: ApplicationFiled: June 27, 2013Publication date: October 24, 2013Inventors: Robert C. Farnan, Scott A. Olson, Elizabeth Jung, Andrew J. Dusbabek, Robert G. Hudgins
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Publication number: 20130211538Abstract: 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: ApplicationFiled: January 8, 2013Publication date: August 15, 2013Inventors: Hugh D. Hestad, Zachary M. Hoffman, Robert G. Hudgins, John T. Maertens, Thomas O. Viker
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Patent number: 8372131Abstract: 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: GrantFiled: July 16, 2007Date of Patent: February 12, 2013Inventors: Hugh D. Hestad, Zachary M. Hoffman, Robert G. Hudgins, John T. Maertens, Thomas O. Viker
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Patent number: 8343029Abstract: 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: GrantFiled: October 23, 2008Date of Patent: January 1, 2013Assignee: Circulite, Inc.Inventors: Robert C. Farnan, Scott A. Olson, Elizabeth Jung, Andrew J. Dusbabek, Robert G. Hudgins
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Patent number: 8333687Abstract: 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: GrantFiled: April 18, 2011Date of Patent: December 18, 2012Assignee: Circulite, Inc.Inventors: Robert C. Farnan, Scott A. Olson, Elizabeth Jung, Andrew J. Dusbabek, Robert G. Hudgins
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Publication number: 20110190567Abstract: 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: ApplicationFiled: April 18, 2011Publication date: August 4, 2011Applicant: CIRCULITE, INC.Inventors: Robert C. Farnan, Scott A. Olson, Elizabeth Jung, Andrew J. Dusbabek, Robert G. Hudgins
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Publication number: 20100249491Abstract: 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: ApplicationFiled: March 9, 2010Publication date: September 30, 2010Applicant: CIRCULITE, INC.Inventors: Robert C. Farnan, Scott A. Olson, Elizabeth Jung, Andrew J. Dusbabek, Robert G. Hudgins