Patents by Inventor Steven G. Baker
Steven G. Baker 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: 8211139Abstract: A graft provided with a flexible sealing member to substantially prevent blood from leaking between the graft a lumen into which the graft is placed. In one embodiment, the flexible sealing member may be pressed against the vascular wall by an outwardly biased spring means attached to the sealing member. In other embodiments, the sealing member may be self-positioning upon deployment of the graft. The sealing member also may be formed into the shape of a toroid, which may be filled with thrombogenic material causing blood permeating into the toroid-shaped space to coagulate therein and hold the sealing member in place. It is also contemplated that the sealing member be formed from tufts of frayed yarn protruding circumferentially from the outer surface of the graft. A method of manufacturing such tufted yarn sealing members is also disclosed.Type: GrantFiled: December 19, 2008Date of Patent: July 3, 2012Assignee: Endovascular Technologies, Inc.Inventors: Steven G. Baker, Tamara L. Trayer, Arnold M. Escano, Mark LeMere, Elizabeth A. McDermott
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Publication number: 20090105805Abstract: A graft provided with a flexible sealing member to substantially prevent blood from leaking between the graft a lumen into which the graft is placed. In one embodiment, the flexible sealing member may be pressed against the vascular wall by an outwardly biased spring means attached to the sealing member. In other embodiments, the sealing member may be self-positioning upon deployment of the graft. The sealing member also may be formed into the shape of a toroid, which may be filled with thrombogenic material causing blood permeating into the toroid-shaped space to coagulate therein and hold the sealing member in place. It is also contemplated that the sealing member be formed from tufts of frayed yarn protruding circumferentially from the outer surface of the graft. A method of manufacturing such tufted yarn sealing members is also disclosed.Type: ApplicationFiled: December 19, 2008Publication date: April 23, 2009Applicant: Endovascular Technologies, Inc.Inventors: Steven G. Baker, Tamara L. Trayer, Arnold M. Escano, Mark LeMere, Elizabeth A. McDermott
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Patent number: 7481822Abstract: A graft provided with a flexible sealing member to substantially prevent blood from leaking between the graft a lumen into which the graft is placed. In one embodiment, the flexible sealing member may be pressed against the vascular wall by an outwardly biased spring means attached to the sealing member. In other embodiments, the sealing member may be self-positioning upon deployment of the graft. The sealing member also may be formed into the shape of a toroid, which may be filled with thrombogenic material causing blood permeating into the toroid-shaped space to coagulate therein and hold the sealing member in place. It is also contemplated that the sealing member be formed from tufts of frayed yarn protruding circumferentially from the outer surface of the graft. A method of manufacturing such tufted yarn sealing members is also disclosed.Type: GrantFiled: March 8, 2004Date of Patent: January 27, 2009Assignee: Endovascular Technologies, Inc.Inventors: Steven G. Baker, Tamara L. Trayer, Arnold M. Escano, Mark LeMere, Elizabeth A. McDermott
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Patent number: 7166125Abstract: An intraluminal grafting system having a delivery catheter comprising a flexible elongate tubular member having proximal and distal extremities and a capsule mounted on the distal extremity of the tubular member and including a graft disposed within the capsule. The graft is comprised of a tubular body configured to be secured to a blood vessel by a self expanding attachment system. The attachment system comprises a generally sinusoidal wire frame having apices which extend longitudinally outward from the end of the tubular body apices which are secured within the tubular body. Both the protruding apices and the base apices are formed with helices which bias the attachment system radially outward. The attachment system further includes a plurality of lumen piercing members that are oriented in a responsive relationship to the radially outward bias of the attachment system.Type: GrantFiled: October 10, 2000Date of Patent: January 23, 2007Assignee: Endovascular Technologies, Inc.Inventors: Steven G. Baker, Dinah B. Quiachon, Alec A. Piplani, Wesley D. Sterman, Ronald G. Williams
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Patent number: 6860901Abstract: An intraluminal grafting system having a delivery catheter comprising a flexible elongate tubular member having proximal and distal extremities and a capsule mounted on the distal extremity of the tubular member and including a graft disposed within the capsule. The graft is comprised of a tubular body configured to be secured to a blood vessel by a self expanding attachment system. The attachment system comprises a generally sinusoidal wire frame having apices which extend longitudinally outward from the end of the tubular body apices which are secured within the tubular body. Both the protruding apices and the base apices are formed with helices which bias the attachment system radially outward. The attachment system further includes a plurality of lumen piercing members that are oriented in a responsive relationship to the radially outward bias of the attachment system.Type: GrantFiled: July 2, 2002Date of Patent: March 1, 2005Assignee: Endovascular Technologies, Inc.Inventors: Steven G. Baker, Dinah B. Quiachon, Alec A. Piplani, Wesley D. Sterman, Ronald G. Williams
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Patent number: 6814748Abstract: An intraluminal grafting system having a delivery catheter comprising a flexible elongate tubular member having proximal and distal extremities and a capsule mounted on the distal extremity of the tubular member and including a graft disposed within the capsule. The graft is comprised of a tubular body configured to be secured to a blood vessel by a self expanding attachment system. The attachment system comprises a generally sinusoidal wire frame having apices which extend longitudinally outward from the end of the tubular body apices which are secured within the tubular body. Both the protruding apices and the base apices are formed with helices which bias the attachment system radially outward. The attachment system further includes a plurality of lumen piercing members that are oriented in a responsive relationship to the radially outward bias of the attachment system.Type: GrantFiled: June 14, 2002Date of Patent: November 9, 2004Assignee: Endovascular Technologies, Inc.Inventors: Steven G. Baker, Dinah B. Quiachon, Alec A. Piplani, Wesley D. Sterman, Ronald G. Williams
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Patent number: 6808520Abstract: A sheath for use in introducing a catheter or other medical instrument into a vessel in the body of a patient. The sheath includes an elongate sheath tube formed of a flexible material which has proximal and distal extremities and a passage extending therethrough A backflow adapter is secured to the proximal extremity of the elongate sheath tube. The backflow adapter has a central opening therein in registration with the passage in the sheath tube. A normally closed primary valve is disposed in the central opening of the backflow adapter and is movable le to an open position. A normally open secondary valve, movable to a closed position, may be configured in the backflow adapter proximal the sheath tube and distal the primary valve. The primary and secondary valves when open permit a catheter or other medical instrument to be inserted into the sheath.Type: GrantFiled: March 1, 2001Date of Patent: October 26, 2004Assignee: Endovascular Technologies, Inc.Inventors: Michael G. Fourkas, Steven G. Baker, David H. Mitchell
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Patent number: 6729356Abstract: A graft provided with a flexible sealing member to substantially prevent blood from leaking between the graft a lumen into which the graft is placed. In one embodiment, the flexible sealing member may be pressed against the vascular wall by an outwardly biased spring means attached to the sealing member. In other embodiments, the sealing member may be self-positioning upon deployment of the graft. The sealing member also may be formed into the shape of a toroid, which may be filled with thrombogenic material causing blood permeating into the toroid-shaped space to coagulate therein and hold the sealing member in place. It is also contemplated that the sealing member be formed from tufts of frayed yarn protruding circumferentially from the outer surface of the graft. A method of manufacturing such tufted yarn sealing members is also disclosed.Type: GrantFiled: April 27, 2000Date of Patent: May 4, 2004Assignee: Endovascular Technologies, Inc.Inventors: Steven G. Baker, Tamara L. Trayer, Arnold M. Escano, Mark LeMere, Elizabeth A. McDermott
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Patent number: 6221102Abstract: An intraluminal grafting system having a delivery catheter comprising a flexible elongate tubular member having proximal and distal extremities and a capsule mounted on the distal extremity of the tubular member and including a graft disposed within the capsule. The graft is comprised of a tubular body configured to be secured to a blood vessel by a self expanding attachment system. The attachment system comprises a generally sinusoidal wire frame having apices which extend longitudinally outward from the end of the tubular body apices which are secured within the tubular body. Both the protruding apices and the base apices are formed with helices which bias the attachment system radially outward. The attachment system further includes a plurality of lumen piercing members that are oriented in a responsive relationship to the radially outward bias of the attachment system.Type: GrantFiled: June 7, 1995Date of Patent: April 24, 2001Assignee: Endovascular Technologies, Inc.Inventors: Steven G. Baker, Dinah B. Quiachon, Alec A. Piplani, Wesley D. Sterman, Ronald G. Williams
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Patent number: 6197016Abstract: A large-diameter expandable sheath for use in introducing a catheter or other medical instrument into a vessel in the body of a patient. The expandable sheath comprises an elongate sheath tube formed of a flexible material which has proximal and distal extremities and a passage extending therethrough of a maximum predetermined diameter. The distal extremity of the elongate sheath tube is folded longitudinally to a smaller folded diameter. The sheath tube may be self-expanding or may be reinforced with a self-expanding wire or expandable stents. A backflow adapter is secured to the proximal extremity of the elongate sheath tube. The backflow adapter has a central opening therein in registration with the passage in the sheath tube. A normally closed primary valve is disposed in the central opening of the backflow adapter and is movable to an open position.Type: GrantFiled: July 6, 1999Date of Patent: March 6, 2001Assignee: Endovascular Technologies, Inc.Inventors: Michael G. Fourkas, Steven G. Baker, David H. Mitchell
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Patent number: 5935122Abstract: A sheath assembly for use in introducing a catheter or other medical instrument into a vessel in the body of a patient. The sheath assembly includes an outer tubular member and an inner tubular member with a conically shaped cap at its distal end. A locking mechanism prevents advancement of the inner tubular member and associated cap in a distal direction of the vessel of the patient independent of the outer tubular member, but allows free movement of the inner tubular member in the proximal direction independent of the outer tubular member.Type: GrantFiled: August 1, 1997Date of Patent: August 10, 1999Assignee: Endovascular Technologies, Inc.Inventors: Michael G. Fourkas, Steven G. Baker, David H. Mitchell
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Patent number: 5653697Abstract: A large-diameter expandable sheath for use in introducing a catheter or other medical instrument into a vessel in the body of a patient. The expandable sheath comprises an elongate sheath tube formed of a flexible material which has proximal and distal extremities and a passage extending therethrough of a maximum predetermined diameter. The distal extremity of the elongate sheath tube is folded longitudinally to a smaller folded diameter. The sheath tube may be self-expanding or may be reinforced with a self-expanding wire or expandable stents. A backflow adapter is secured to the proximal extremity of the elongate sheath tube. The backflow adapter has a central opening therein in registration with the passage in the sheath tube. A normally closed primary valve is disposed in the central opening of the backflow adapter and is movable to an open position.Type: GrantFiled: September 27, 1995Date of Patent: August 5, 1997Assignee: Endovascular Technologies, Inc.Inventors: Dinah B. Quiachon, Wesley D. Sterman, Ronald G. Williams, David C. Dillow, Steven G. Baker
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Patent number: 5484418Abstract: A large-diameter expandable sheath for use in introducing a catheter or other medical instrument into a vessel in the body of a patient. The expandable sheath comprises an elongate sheath tube formed of a flexible material which has proximal and distal extremities and a passage extending therethrough of a maximum predetermined diameter. The distal extremity of the elongate sheath tube is folded longitudinally to a smaller folded diameter. The sheath tube may be self-expanding or may be reinforced with a self-expanding wire or expandable stents. A backflow adapter is secured to the proximal extremity of the elongate sheath tube. The backflow adapter has a central opening therein in registration with the passage in the sheath tube. A normally closed primary valve is disposed in the central opening of the backflow adapter and is movable to an open position.Type: GrantFiled: November 2, 1994Date of Patent: January 16, 1996Assignee: EndoVascular Technologies, Inc.Inventors: Dinah B. Quiachon, Wesley D. Sterman, Ronald G. Williams, David C. Dillow, Steven G. Baker
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Patent number: 5395349Abstract: A large-diameter expandable sheath for use in introducing a catheter or other medical instrument into a vessel in the body of a patient. The expandable sheath comprises an elongate sheath tube formed of a flexible material which has proximal and distal extremities and a passage extending therethrough of a maximum predetermined diameter. The distal extremity of the elongate sheath tube is folded longitudinally to a smaller folded diameter. The sheath tube may be self-expanding or may be reinforced with a self-expanding wire or expandable stents. A backflow adapter is secured to the proximal extremity of the elongate sheath tube. The backflow adapter has a central opening therein in registration with the passage in the sheath tube. A normally closed primary valve is disposed in the central opening of the backflow adapter and is movable to an open position.Type: GrantFiled: August 19, 1993Date of Patent: March 7, 1995Assignee: EndoVascular Technologies, Inc.Inventors: Dinah B. Quiachon, Wesley D. Sterman, Ronald G. Williams, David C. Dillow, Steven G. Baker
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Patent number: 5256150Abstract: A large-diameter expandable sheath for use in introducing a catheter into a vessel in the body of a patient comprising an elongate sheath tube formed of a flexible material which has proximal and distal extremities and a passage extending therethrough of a maximum predetermined diameter. The distal extremity of the elongate sheath tube is folded longitudinally to a smaller folded diameter. A backflow adapter is secured to the proximal extremity of the elongate sheath tube. The backflow adapter has a central opening therein in registration with the passage in the sheath tube. A valve is disposed in the central opening of the backflow adapter and is movable between open and closed positions. The valve when open permits the catheter to be inserted into the sheath, and when closed serves to form a hemostatic seal about the catheter.Type: GrantFiled: December 13, 1991Date of Patent: October 26, 1993Assignee: EndoVascular Technologies, Inc.Inventors: Dinah B. Quiachon, Wesley D. Sterman, Ronald G. Williams, David C. Dillow, Steven G. Baker