Patents by Inventor Laurie E. Lynch
Laurie E. Lynch 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: 8690815Abstract: Vascular access systems for performing hemodialysis are disclosed. The vascular access system contemplates a catheter section adapted for insertion into a vein and a graft section adapted for attachment to an artery. The catheter section may have metal or polymer wall reinforcements that allow the use of thin-walled, small outer diameter conduits for the vascular access system. One or more of the adhered, embedded or bonded conduit reinforcement structures may be removable without significant damage to the conduit sections to facilitate attachment of the sections, or to a connector between the sections. Various self-sealing materials are provided for use in the vascular access system, as well as temporary access sites and flow control/sensor systems.Type: GrantFiled: July 6, 2010Date of Patent: April 8, 2014Assignee: Hemosphere, Inc.Inventors: Christopher H. Porter, Laurie E. Lynch, Judson A. Herrig, Robert J. Ziebol
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Publication number: 20110060264Abstract: Vascular access systems for performing hemodialysis are disclosed. The vascular access system contemplates a catheter section adapted for insertion into a vein and a graft section adapted for attachment to an artery. The catheter section may have metal or polymer wall reinforcements that allow the use of thin-walled, small outer diameter conduits for the vascular access system. One or more of the adhered, embedded or bonded conduit reinforcement structures may be removable without significant damage to the conduit sections to facilitate attachment of the sections, or to a connector between the sections. Various self-sealing materials are provided for use in the vascular access system, as well as temporary access sites and flow control/sensor systems.Type: ApplicationFiled: July 6, 2010Publication date: March 10, 2011Applicant: HEMOSPHERE INC.Inventors: Christopher H. Porter, Laurie E. Lynch, Judson A. Herrig, Robert J. Ziebol
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Patent number: 7762977Abstract: Vascular access systems for performing hemodialysis are disclosed. The vascular access system contemplates a catheter section adapted for insertion into a vein and a graft section adapted for attachment to an artery. The catheter section may have metal or polymer wall reinforcements that allow the use of thin-walled, small outer diameter conduits for the vascular access system. One or more of the adhered, embedded or bonded conduit reinforcement structures may be removable without significant damage to the conduit sections to facilitate attachment of the sections, or to a connector between the sections. Various self-sealing materials are provided for use in the vascular access system, as well as temporary access sites and flow control/sensor systems.Type: GrantFiled: August 31, 2005Date of Patent: July 27, 2010Assignee: Hemosphere, Inc.Inventors: Christopher H. Porter, Robert J. Ziebol, Judson A. Herrig, Laurie E. Lynch, Tuan Doan
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Publication number: 20080167595Abstract: Methods and devices are disclosed for connecting implantable body fluid conduits, such as catheters and grafts for AV shunts. A connector with thin connector walls at the lumen openings provides a connecting lumen that is close to flush with the lumens of the attached conduits. A tapered, smooth walled connector lumen allows connection of conduits with different internal diameters while preserving laminar flow in the transition between different conduit diameters. Rounding of the connector edges at the lumen openings further reduce disturbances in flow.Type: ApplicationFiled: March 24, 2008Publication date: July 10, 2008Applicant: GRAFTcath Inc.Inventors: Christopher H. Porter, Tuan Doan, Laurie E. Lynch
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Publication number: 20040247641Abstract: A method and system for the creation or modification of the wear surface of orthopedic joints, involving the preparation and use of one or more partially or fully preformed and procured components, adapted for insertion and placement into the body and at the joint site. In a preferred embodiment, component(s) can be partially cured and generally formed ex vivo and further and further formed in vivo at the joint site to enhance conformance and improve long term performance. In another embodiment, a preformed balloon or composite material can be inserted into the joint site and filled with a flowable biomaterial in situ to conform to the joint site. In yet another embodiment, the preformed component(s) can be fully cured and formed ex vivo and optionally further fitted and secured at the joint site.Type: ApplicationFiled: July 8, 2004Publication date: December 9, 2004Inventors: Jeffrey C. Felt, Mark A. Rydell, Paul J. Buscemi, Alexander Arsenyev, Christoph H. Porter, Laurie E. Lynch, Kristin M. Mortenson
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Patent number: 6441057Abstract: The present invention discloses novel polymer compositions comprising cellulose acrylamide, acrylamide and/or a fluorescent indicator species, and membranes made with these compositions. Optical pH sensors for monitoring the pH in a fluid sample, and methods for making such pH sensors are also disclosed. The pH sensors have reduced sensitivity to sample components that can interfere with pH measurements.Type: GrantFiled: March 30, 2000Date of Patent: August 27, 2002Assignee: Optical Sensors IncorporatedInventors: Lynn M. Kimball, Laura J. Bauer, William V. Fowler, Laurie E. Lynch
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Patent number: 6162494Abstract: A method for making a optical sensor for measuring the pH of a fluid includes the steps of applying a solution containing (a) a cellulose acrylamide, (b) an acrylamide, and (c) a copolymerizable monomeric fluorescent indicator species to the distal end of an optical fiber and polymerizing the solution to form a pH sensor means.Type: GrantFiled: March 30, 2000Date of Patent: December 19, 2000Assignee: Optical Sensors, Inc.Inventors: Lynn M. Kimball, Laura J. Bauer, William V. Fowler, Laurie E. Lynch
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Patent number: 6159536Abstract: A method for making a fiber optic sensor includes the steps of applying an adhesive composition to the distal end of an optical fiber, and applying a solution containing a copolymer of (a) a cellulose acrylamide, (b) an acrylamide, and (c) a copolymerizable monomeric fluorescent indicator species thereto to form a sensing layer.Type: GrantFiled: March 30, 2000Date of Patent: December 12, 2000Assignee: Optical Sensors IncorporatedInventors: Lynn M. Kimball, Laura J. Bauer, William V. Fowler, Laurie E. Lynch
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Patent number: 6139799Abstract: The present invention discloses novel polymer compositions comprising cellulose acrylamide, acrylamide and/or a fluorescent indicator species, and membranes made with these compositions. Optical pH sensors for monitoring the pH in a fluid sample, and methods for making such pH sensors are also disclosed. The pH sensors have reduced sensitivity to sample components that can interfere with pH measurements.Type: GrantFiled: December 16, 1997Date of Patent: October 31, 2000Assignee: Optical Sensors IncorporatedInventors: Lynn M. Kimball, Laura J. Bauer, William V. Fowler, Laurie E. Lynch
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Patent number: 5976085Abstract: A method is provided for calibrating sensors used to analyze characteristics of physiologic fluids such as blood. The method involves the use of a sensor assembly having an analyte-responsive sensor in communication with a passageway which is in divertable fluid communication with a physiologic line and a conduit by which a reference sample may be introduced into the passageway. The method involves exposing the sensor to the reference sample, thereby producing a sensor response. The method also allows performing quality control on the sensors. Also provided is an apparatus with which the claimed method may be practiced.Type: GrantFiled: October 7, 1997Date of Patent: November 2, 1999Assignee: Optical Sensors IncorporatedInventors: Victor E. Kimball, Laurie E. Lynch, Irvin T. Pierskalla, Christopher H. Porter
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Patent number: 5697366Abstract: A method is provided for calibrating sensors used to analyze characteristics of physiologic fluids such as blood. The method involves the use of a sensor assembly having an analyte-responsive sensor in communication with a passageway which is in divertable fluid communication with a physiologic line and a conduit by which a reference sample may be introduced into the passageway. The method involves exposing the sensor to the reference sample, thereby producing a sensor response. The method also allows performing quality control on the sensors. Also provided is an apparatus with which the claimed method may be practiced.Type: GrantFiled: January 27, 1995Date of Patent: December 16, 1997Assignee: Optical Sensors IncorporatedInventors: Victor E. Kimball, Laurie E. Lynch, Irvin T. Pierskalla, Christopher H. Porter
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Patent number: 5231131Abstract: A pigment dispersion useful for forming coating compositions containing dispersed pigment, an aqueous carrier and a graft copolymer dispersant; wherein the graft copolymer has a weight average molecular weight of about 5,000-100,000 and has a polymeric backbone and macromonomer side chains attached to the backbone wherein(1) the polymeric backbone is hydrophobic in comparison to the side chains and contains polymerized ethylenically unsaturated hydrophobic monomers and up to 20% by weight, based on the weight of the graft copolymer, of polymerized ethylenically unsaturated acid containing monomers; and(2) the sidechains are hydrophilic macromonomers attached to the backbone at a single terminal point and contain polymerized ethylenically unsaturated monomers and 2-100% by weight, based on the weight of the graft copolymer, of polymerized ethylenically unsaturated acid containing monomers and have a weight average molecular weight of about 1,000-30,000 and wherein the acid groups of the graft copolymer are neuType: GrantFiled: December 24, 1991Date of Patent: July 27, 1993Assignee: E. I. Du Pont de Nemours and CompanyInventors: I. Cheng Chu, Michael Fryd, Laurie E. Lynch
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Patent number: RE47154Abstract: Vascular access systems for performing hemodialysis are disclosed. The vascular access system contemplates a catheter section adapted for insertion into a vein and a graft section adapted for attachment to an artery. The catheter section may have metal or polymer wall reinforcements that allow the use of thin-walled, small outer diameter conduits for the vascular access system. One or more of the adhered, embedded or bonded conduit reinforcement structures may be removable without significant damage to the conduit sections to facilitate attachment of the sections, or to a connector between the sections. Various self-sealing materials are provided for use in the vascular access system, as well as temporary access sites and flow control/sensor systems.Type: GrantFiled: April 7, 2016Date of Patent: December 11, 2018Assignee: Merit Medical Systems, Inc.Inventors: Christopher H. Porter, Laurie E. Lynch, Judson A. Herrig, Robert J. Ziebol