Patents by Inventor Dale L. Ehnes
Dale L. Ehnes 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: 11918498Abstract: A system for internal iliac preservation includes a catheter having a distal catheter portion and a proximal catheter portion; a first guidewire having a proximal portion extending from the proximal catheter portion, a distal portion and a medial portion disposed between the proximal portion and the distal portion; a first outer sheath slidably disposed over distal catheter portion; and an integrated second delivery system disposed within the outer sheath at the distal catheter portion. The integrated second delivery system includes a second guidewire; an expandable stent-graft disposed over a lumen of the second guidewire, and a slidable connector slidably disposed over the medial portion of the first guidewire, where the second guidewire is slidably engaged with the slidable connection to permit movement of the integrated second delivery system along the first guidewire when the first outer sheath is retracted from distal catheter portion.Type: GrantFiled: June 14, 2021Date of Patent: March 5, 2024Assignee: TriVascular, Inc.Inventors: Dale L. Ehnes, Mark Purter, Mark Geusen, Kevin Knoll, Diego Aristizabal
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Publication number: 20220273416Abstract: A flexible stent-graft has polymeric, non-textile graft layers with a stent disposed between or among the graft layers while allowing for movement of the stent between or among the layers. The stent includes an undulating wire stent disposed within pockets of non-secured graft portions between graft layers. The stent may be a ribbon stent having a ribbon or ribbons of graft layers.Type: ApplicationFiled: March 15, 2022Publication date: September 1, 2022Inventors: Dale L. Ehnes, Riley King, Irma Tapia, Chris Staudenmayer
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Publication number: 20210369459Abstract: A prosthetic venous valve includes an expanding anchoring frame, a valve seat at the middle portion of the anchoring frame, a ball disposed within the lumen of the anchoring frame and having an outer diameter, and least one ball retention tether coupled with the ball and the anchoring frame. The ball retention tether includes at least one elastic component or material. The anchoring frame has an upstream end, a downstream end, a middle portion and a lumen extending through the anchoring frame from the upstream end to the downstream end. The ball moves between an open position, in which the ball is located apart from the valve seat, and a closed position, in which the ball is located in contact with or near the valve seat to reduce or prevent backflow of blood through the prosthetic venous valve.Type: ApplicationFiled: June 2, 2021Publication date: December 2, 2021Inventors: Dale L. Ehnes, Teresa Woodson, Christopher Staudenmayer, Austin Walker, Thomas Kramer, Albert K. Chin, Mark Geusen
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Publication number: 20210298931Abstract: A system for internal iliac preservation includes a catheter having a distal catheter portion and a proximal catheter portion; a first guidewire having a proximal portion extending from the proximal catheter portion, a distal portion and a medial portion disposed between the proximal portion and the distal portion; a first outer sheath slidably disposed over distal catheter portion; and an integrated second delivery system disposed within the outer sheath at the distal catheter portion. The integrated second delivery system includes a second guidewire; an expandable stent-graft disposed over a lumen of the second guidewire, and a slidable connector slidably disposed over the medial portion of the first guidewire, where the second guidewire is slidably engaged with the slidable connection to permit movement of the integrated second delivery system along the first guidewire when the first outer sheath is retracted from distal catheter portion.Type: ApplicationFiled: June 14, 2021Publication date: September 30, 2021Inventors: Dale L. Ehnes, Mark Purter, Mark Geusen, Kevin Knoll, Diego Aristizabal
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Patent number: 11033413Abstract: A system for internal iliac preservation includes a catheter having a distal catheter portion and a proximal catheter portion; a first guidewire having a proximal portion extending from the proximal catheter portion, a distal portion and a medial portion disposed between the proximal portion and the distal portion; a first outer sheath slidably disposed over distal catheter portion; and an integrated second delivery system disposed within the outer sheath at the distal catheter portion. The integrated second delivery system includes a second guidewire; an expandable stent-graft disposed over a lumen of the second guidewire, and a slidable connector slidably disposed over the medial portion of the first guidewire, where the second guidewire is slidably engaged with the slidable connection to permit movement of the integrated second delivery system along the first guidewire when the first outer sheath is retracted from distal catheter portion.Type: GrantFiled: April 27, 2018Date of Patent: June 15, 2021Assignee: TriVascular, Inc.Inventors: Dale L. Ehnes, Mark Purter, Mark Geusen, Kevin Knoll, Diego Aristizabal
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Patent number: 10695206Abstract: Catheter systems and methods for deployment of an endoluminal prosthesis in a body lumen of a patient while maintaining control of a position of the endoluminal prosthesis during the deployment process. Some of the systems and methods are configured to minimize frictional forces of components of the catheter systems during deployment procedures.Type: GrantFiled: July 28, 2016Date of Patent: June 30, 2020Assignee: TRIVASCULAR, INC.Inventors: Diego Aristizabal, Dale L Ehnes, Teresa Woodson
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Patent number: 10413972Abstract: A fly-cutting system is disclosed, and in particular one that comprises a dynamically-controllable actuator for controlling the position, orientation, or both position and orientation of a cutting element carried by a fly-cutting head. In certain embodiments, the actuator can adjust the position or orientation of a cutting element, or both, hundreds or thousands of times per second, enabling precise control over the shape of features formed by the cutting element in a surface of a workpiece.Type: GrantFiled: February 28, 2018Date of Patent: September 17, 2019Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Alan B. Campbell, Dale L. Ehnes, Daniel S. Wertz
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Patent number: 10197713Abstract: A light directing film includes a structured major surface with a plurality of microstructures extending along a first direction. Each microstructure has a first region and a second region different from the first region, a substantially constant height in the first region and a non-constant maximum height in the second region greater than the substantially constant height in the first region, and a same lateral cross sectional shape in the first region and the second region.Type: GrantFiled: November 6, 2017Date of Patent: February 5, 2019Assignee: 3M Innovative Properties CompanyInventors: Alan B. Campbell, Dale L. Ehnes, John F. Van Derlofske, III, Mark R. Dupre, Stephen J. Dreyer, Patrick H. Marushin, Todd M. Johnson, Bryan V. Hunt
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Publication number: 20180243115Abstract: A system for internal iliac preservation includes a catheter having a distal catheter portion and a proximal catheter portion; a first guidewire having a proximal portion extending from the proximal catheter portion, a distal portion and a medial portion disposed between the proximal portion and the distal portion; a first outer sheath slidably disposed over distal catheter portion; and an integrated second delivery system disposed within the outer sheath at the distal catheter portion. The integrated second delivery system includes a second guidewire; an expandable stent-graft disposed over a lumen of the second guidewire, and a slidable connector slidably disposed over the medial portion of the first guidewire, where the second guidewire is slidably engaged with the slidable connection to permit movement of the integrated second delivery system along the first guidewire when the first outer sheath is retracted from distal catheter portion.Type: ApplicationFiled: April 27, 2018Publication date: August 30, 2018Inventors: Dale L. Ehnes, Mark Purter, Mark Geusen, Kevin Knoll, Diego Aristizabal
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Publication number: 20180185928Abstract: A fly-cutting system is disclosed, and in particular one that comprises a dynamically-controllable actuator for controlling the position, orientation, or both position and orientation of a cutting element carried by a fly-cutting head. In certain embodiments, the actuator can adjust the position or orientation of a cutting element, or both, hundreds or thousands of times per second, enabling precise control over the shape of features formed by the cutting element in a surface of a workpiece.Type: ApplicationFiled: February 28, 2018Publication date: July 5, 2018Inventors: Alan B. Campbell, Dale L. Ehnes, Daniel S. Wertz
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Patent number: 9956101Abstract: A system for internal iliac preservation includes a catheter having a distal catheter portion and a proximal catheter portion; a first guidewire having a proximal portion extending from the proximal catheter portion, a distal portion and a medial portion disposed between the proximal portion and the distal portion; a first outer sheath slidably disposed over distal catheter portion; and an integrated second delivery system disposed within the outer sheath at the distal catheter portion. The integrated second delivery system includes a second guidewire; an expandable stent-graft disposed over a lumen of the second guidewire, and a slidable connector slidably disposed over the medial portion of the first guidewire, where the second guidewire is slidably engaged with the slidable connection to permit movement of the integrated second delivery system along the first guidewire when the first outer sheath is retracted from distal catheter portion.Type: GrantFiled: December 3, 2015Date of Patent: May 1, 2018Assignee: TriVascular, Inc.Inventors: Dale L. Ehnes, Mark Purter, Mark Geusen, Kevin Knoll, Diego Aristizabal
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Patent number: 9937561Abstract: A fly-cutting system is disclosed, and in particular one that comprises a dynamically-controllable actuator for controlling the position, orientation, or both position and orientation of a cutting element carried by a fly-cutting head. In certain embodiments, the actuator can adjust the position or orientation of a cutting element, or both, hundreds or thousands of times per second, enabling precise control over the shape of features formed by the cutting element in a surface of a workpiece.Type: GrantFiled: October 5, 2015Date of Patent: April 10, 2018Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Alan B. Campbell, Dale L. Ehnes, Daniel S. Wertz
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Publication number: 20180059294Abstract: A light directing film includes a structured major surface with a plurality of microstructures extending along a first direction. Each microstructure has a first region and a second region different from the first region, a substantially constant height in the first region and a non-constant maximum height in the second region greater than the substantially constant height in the first region, and a same lateral cross sectional shape in the first region and the second region.Type: ApplicationFiled: November 6, 2017Publication date: March 1, 2018Inventors: Alan B. Campbell, Dale L. Ehnes, John F. Van Derlofske, III, Mark R. Dupre, Stephen J. Dreyer, Patrick H. Marushin, Todd M. Johnson, Bryan V. Hunt
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Patent number: 9810817Abstract: A light directing film includes a structured major surface with a plurality of microstructures extending along a first direction. Each microstructure has a first region and a second region different from the first region, a substantially constant height in the first region and a non-constant maximum height in the second region greater than the substantially constant height in the first region, and a same lateral cross sectional shape in the first region and the second region.Type: GrantFiled: April 1, 2009Date of Patent: November 7, 2017Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Alan B. Campbell, Dale L. Ehnes, John F. Van Derlofske, III, Mark R. Dupre, Stephen J. Dreyer, Patrick H. Marushin, Todd M. Johnson, Bryan V. Hunt
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Patent number: 9562995Abstract: Methods of fly-cutting a workpiece are disclosed, and in methods in which the position of a fly-cutting head or its associated cutting element is known as a function of time. Also disclosed are methods of forming features, such as grooves or groove segments, in a workpiece such as a cylindrical roll. The features may be provided according to one or more disclosed patterns. Articles made using tools machined in the manner described are also provided, such as polymeric film or sheeting that exhibit certain beneficial properties.Type: GrantFiled: May 19, 2010Date of Patent: February 7, 2017Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: James P. Burke, Alan B. Campbell, Dale L. Ehnes, Daniel S. Wertz
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Patent number: 9513412Abstract: Methods and systems for forming a displacement scale comprising TIR prisms on a substrate are described. A system for forming the displacement scale includes one or more rollers having a pattern of total internal reflection (TIR) prism features in negative relief. As the rollers are rotated, the scale is formed on the substrate. The rollers may also include pattern features in negative relief. Rotation of the rollers simultaneously forms the displacement scale and the pattern features on the substrate. The TIR prism features of the displacement scale may be oriented to provide measurement of one or more of lateral displacement, longitudinal displacement and angular displacement.Type: GrantFiled: June 18, 2008Date of Patent: December 6, 2016Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Daniel H. Carlson, Dale L. Ehnes, Daniel S. Wertz, Luis A. Aguirre, Levent Biyikli, Alan B. Campbell
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Publication number: 20160158043Abstract: A system for internal iliac preservation includes a catheter having a distal catheter portion and a proximal catheter portion; a first guidewire having a proximal portion extending from the proximal catheter portion, a distal portion and a medial portion disposed between the proximal portion and the distal portion; a first outer sheath slidably disposed over distal catheter portion; and an integrated second delivery system disposed within the outer sheath at the distal catheter portion. The integrated second delivery system includes a second guidewire; an expandable stent-graft disposed over a lumen of the second guidewire, and a slidable connector slidably disposed over the medial portion of the first guidewire, where the second guidewire is slidably engaged with the slidable connection to permit movement of the integrated second delivery system along the first guidewire when the first outer sheath is retracted from distal catheter portion.Type: ApplicationFiled: December 3, 2015Publication date: June 9, 2016Inventors: Dale L. Ehnes, Mark Purter, Mark Geusen, Kevin Knoll, Diego Aristizabal
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Publication number: 20160023278Abstract: A fly-cutting system is disclosed, and in particular one that comprises a dynamically-controllable actuator for controlling the position, orientation, or both position and orientation of a cutting element carried by a fly-cutting head. In certain embodiments, the actuator can adjust the position or orientation of a cutting element, or both, hundreds or thousands of times per second, enabling precise control over the shape of features formed by the cutting element in a surface of a workpiece.Type: ApplicationFiled: October 5, 2015Publication date: January 28, 2016Inventors: Alan B. Campbell, Dale L. Ehnes, Daniel S. Wertz
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Patent number: 9180524Abstract: A fly-cutting system is disclosed, and in particular one that comprises a dynamically-controllable actuator for controlling the position, orientation, or both position and orientation of a cutting element carried by a fly-cutting head. In certain embodiments, the actuator can adjust the position or orientation of a cutting element, or both, hundreds or thousands of times per second, enabling precise control over the shape of features formed by the cutting element in a surface of a workpiece.Type: GrantFiled: August 6, 2007Date of Patent: November 10, 2015Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Alan B. Campbell, Dale L. Ehnes, Daniel S. Wertz
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Patent number: 9003934Abstract: Methods of fly-cutting a workpiece are disclosed, and in methods in which the position of a fly-cutting head or its associated cutting element is known as a function of time. Also disclosed are methods of forming features, such as grooves or groove segments, in a workpiece such as a cylindrical roll. The features may be provided according to one or more disclosed patterns. Articles made using tools machined in the manner described are also provided, such as polymeric film or sheeting that exhibit certain beneficial properties.Type: GrantFiled: May 19, 2010Date of Patent: April 14, 2015Assignee: 3M Innovative Properties CompanyInventors: James P. Burke, Alan B. Campbell, Dale L. Ehnes, Daniel S. Wertz