Patents by Inventor Roelof Trip
Roelof Trip 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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Publication number: 20230112010Abstract: A microstructured surface is disclosed capable of immobilizing or resisting displacement forces with respect to a target surface. The microstructured surface is capable of generating capillary bridges with a target surface. The capillary bridges can be further stabilized to generate a novel liquid enhanced adhesion mechanism.Type: ApplicationFiled: September 27, 2022Publication date: April 13, 2023Inventors: Michael Milbocker, Lukas Bluecher, Roelof Trip
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Patent number: 9636254Abstract: Methods, system and apparatus for relieving pressure in an organ such as, but not limited to, the eye are disclosed. The method includes implanting a bioabsorbable channel into the selected area of the organ using a delivery apparatus.Type: GrantFiled: November 17, 2009Date of Patent: May 2, 2017Assignee: AqueSys, Inc.Inventors: Dao-Yi Yu, Cory Anderson, Roelof Trip, Ying Yang, Hoang Van Nguyen, Surag Mantri, Er-Ning Su, Stephen Cringle, James McCrea, Daniel Mufson, Colin Tan
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Publication number: 20170014111Abstract: A substrate having an undulating surface forming a series of rounded peaks and valleys that produce a continuously curving surface across at least a portion of the substrate. The undulating surface defines a first set of micro features. A second set of micro features molded on the first set of micro features. The substrate is a compression molded polymeric material in which the first and second sets of micro features are formed on the substrate during a single molding step, and wherein the first and second sets of micro features cooperate to increase the surface area and affect at least one of adhesion, friction, hydrophilicity and hydrophobicity of the substrate.Type: ApplicationFiled: July 17, 2015Publication date: January 19, 2017Inventors: Ralph A. Hulseman, Kenneth N. Tackett, II, Cameron L. McPherson, Carl L. Hulseman, Roelof Trip, Michael Milbocker, Lukas Graf Bluecher
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Publication number: 20150088253Abstract: Systems and methods of the disclosure relate to managing power consumption of an implantable device, such as an implantable ophthalmic device, that includes one or more rechargeable batteries and a processor operably coupled to the rechargeable batteries. The processor can be configured to implement a quick-charge process that includes charging each rechargeable battery for a first time interval using a first constant current, for a second time interval using a second constant current less than the first constant current, and for a third time interval using a constant voltage. This quick charge process is faster than conventional charging. The processor also manages discharge of two batteries in an alternating fashion so as to increase time between charging cycles, reduce the total number of charging cycles, and extend battery life.Type: ApplicationFiled: March 14, 2013Publication date: March 26, 2015Inventors: Walter Doll, Jean-Noel Fehr, Urban Schnell, Roelof Trip, Amitava Gupta
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Patent number: 8682426Abstract: A medical instrument for delivering electrotherapy to tissue that includes an outer support member having a ground plate at a distal end of the outer support member, and a protrusive element having a tip that extends beyond the ground plate. A portion of the protrusive element proximate the ground plate can act as an electrical insulator and a portion of the protrusive element proximate the distal end of the protrusive element can include a first electrode. The protrusive element can be designed to penetrate into tissue below a tissue surface while a tissue contacting surface of the ground plate rests against the tissue surface. Also disclosed are systems incorporating the medical instrument and methods of electrotherapy to subsurface tissue using the medical instrument.Type: GrantFiled: April 6, 2009Date of Patent: March 25, 2014Assignee: Old Dominion Research FoundationInventors: Karl H. Schoenbach, Stephen J. Beebe, Tammo Heeren, Juergen F. Kolb, Shu Xiao, Richard Blomgren, Roelof Trip
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Patent number: 8496658Abstract: An implantable intramedullary fixation structure adapted to be received in the intramedullary canal of a long bone is disclosed comprising a plurality of elongated segments. Each segment has a first end and a complementarily-shaped second end such that the first end of a segment cooperatively engages the second end of an adjacent segment. The segments define a guide aperture so as to be receivable over a guide for positioning in the intramedullary canal.Type: GrantFiled: September 11, 2012Date of Patent: July 30, 2013Assignee: Sonoma Orthopedic Products, Inc.Inventors: James D. Stoneburner, Matthew T. Harmon, Roelof Trip, Charles E. Larsen, Daniel F. Justin, Karen E. Mohr, Carlyle J. Creger, Mojan Goshayesh
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Patent number: 8430879Abstract: An implantable intramedullary fixation structure adapted to be received in the intramedullary canal of a long bone is disclosed comprising a plurality of elongated segments. Each segment has a first end and a complementarily-shaped second end such that the first end of a segment cooperatively engages the second end of an adjacent segment. The segments define a guide aperture so as to be receivable over a guide for positioning in the intramedullary canal.Type: GrantFiled: March 21, 2008Date of Patent: April 30, 2013Assignee: Sonoma Orthopedic Products, Inc.Inventors: James D. Stoneburner, Matthew T. Harmon, Roelof Trip, Charles E. Larsen, Daniel F. Justin, Karen E. Mohr, Carlyle J. Creger, Mojan Goshayesh
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Patent number: 8365721Abstract: A method for performing intraocular brachytherapy and an apparatus for performing the same is disclosed. The apparatus preferably comprises a hand-held delivery device that advances a radiation source into an associated cannula or probe that is positioned adjacent the target tissue. The handpiece provides for shielded storage of the radiation source when retracted from the cannula and includes a slider mechanism for advancing and retracting the radiation source. The radiation source is mounted to a wire that has a flexible distal end and a relatively stiffer proximal end. A positioning system for the cannula is also disclosed.Type: GrantFiled: August 27, 2010Date of Patent: February 5, 2013Assignee: NeoVista Inc.Inventors: Charles E. Larsen, Richard A. Hillstead, Roelof Trip, Eugene deJuan, Mark S. Humayun, Eberhard Fritz, Rainer Pintaske, Sabine Willenkamp, Gerd T. Phillipps
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Patent number: 8348938Abstract: Apparatus, systems and methods for providing electrical energy to treat a tissue condition includes a high voltage pulse generator for generating short high voltage pulses of energy and a delivery device for receiving the pulses of energy. The delivery device includes at least a pair of needle electrodes for penetrating into the tissue and delivering the pulses of energy to the tissue.Type: GrantFiled: May 6, 2009Date of Patent: January 8, 2013Assignees: Old Dominian University Research Foundation, Eastern Virginia Medical SchoolInventors: Richard D. Blomgren, Dilip Paithankar, Roelof Trip, Roman Slizynski, Kathleen Beauchamp
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Publication number: 20130006245Abstract: An implantable intramedullary fixation structure adapted to be received in the intramedullary canal of a long bone is disclosed comprising a plurality of elongated segments. Each segment has a first end and a complementarily-shaped second end such that the first end of a segment cooperatively engages the second end of an adjacent segment. The segments define a guide aperture so as to be receivable over a guide for positioning in the intramedullary canal.Type: ApplicationFiled: September 11, 2012Publication date: January 3, 2013Applicant: SONOMA ORTHOPEDIC PRODUCTS, INC.Inventors: James D. Stoneburner, Matthew T. Harmon, Roelof Trip, Charles E. Larsen, Daniel F. Justin, Karen E. Mohr, Carlyle J. Creger, Mojan Goshayesh
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Patent number: 8292795Abstract: Methods and apparatus for intraocular brachytherapy are disclosed in which a cannula is introduced into the eye for delivery of radiation to a target tissue. Techniques for properly locating the cannula with respect to the target tissue, for protecting non-target tissue, for regulating heat generated by x-ray emitters, and for combining therapies are disclosed.Type: GrantFiled: September 22, 2010Date of Patent: October 23, 2012Assignee: NeoVista, Inc.Inventors: Richard A Hillstead, Charles E. Larsen, Roelof Trip, Cory S. Anderson, Eberhard Fritz, Rainer Pintaske
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Publication number: 20120197175Abstract: The invention generally relates to shunts in which at least a portion of the body includes a drug.Type: ApplicationFiled: December 8, 2011Publication date: August 2, 2012Applicant: AQUESYS, INC.Inventors: Christopher Horvath, Ronald D. Bache, Laszlo O. Romoda, Dao-Yi Yu, Cory Anderson, Roelof Trip, Ying Yang, Hoang Van Nguyen, Surag Mantri, Er-Ning Su, Stephen Cringle, James McCrea, Daniel Mufson, Colin Tan, Richard L. Lindstrom
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Patent number: 8128627Abstract: An implantable segmented intramedullary structure adapted to be received in the intramedullary canal of a bone configurable between a relatively flexible, bent configuration for implantation or extraction and a relatively rigid, straightened configuration for bone treatment. The segmented intramedullary structure comprises a plurality of interconnected segments with a first interface and a complementarily-shaped second interface such that the first interface of a segment cooperatively engages the second interface of an adjacent segment. The segments define a channel for a tensioning member to lock the structure in a compressed configuration.Type: GrantFiled: December 29, 2008Date of Patent: March 6, 2012Assignee: Sonoma Orthopedic Products, Inc.Inventors: Daniel F. Justin, Karen E. Mohr, Carlyle J. Creger, Jeremy D. Borchert, James D. Stoneburner, Mojan Goshayesh, Matthew T. Harmon, Roelof Trip, Charles E. Larsen
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Patent number: 8012078Abstract: Method and apparatus are disclosed employing ionizing radiation for forming lines of ablation or lesions in cardiac tissue to treat atrial fibrillation or other electrophysiological problems with the heart. The apparatus may include a catheter in which the radiation source is advanced hydraulically after the catheter is in place within the heart. Various fixation devices are also disclosed for fixing the location of the catheter within the heart.Type: GrantFiled: February 22, 2007Date of Patent: September 6, 2011Assignee: Best VascularInventors: Raoul Bonan, Charles E. Larsen, Roelof Trip, Douglas B. Schumer, Jack C. Griffis, III, Andrew L. Lerohl
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Publication number: 20110196186Abstract: Method and apparatus are disclosed employing ionizing radiation. for forming lines of ablation or lesions in cardiac tissue to treat atrial fibrillation or other electrophysiological problems with the heart. The apparatus may include a catheter in which the radiation source is advanced hydraulically after the catheter is in place within the heart. Various fixation devices are also disclosed for fixing the location of the catheter within the heart.Type: ApplicationFiled: April 20, 2011Publication date: August 11, 2011Inventors: RAOUL BONAN, Charles E. Larsen, Roelof Trip, Douglas B. Schumer, Jack C. Griffis, III, Andrew L. Lerohl
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Patent number: 7951060Abstract: A method for performing intraocular brachytherapy and an apparatus for performing the same is disclosed. The apparatus preferably comprises a hand-held delivery device that advances a radiation source into an associated cannula or probe that is positioned adjacent the target tissue. The handpiece provides for shielded storage of the radiation source when retracted from the cannula and includes a slider mechanism for advancing and retracting the radiation source. The radiation source is mounted to a wire that has a flexible distal end and a relatively stiffer proximal end. A positioning system for the cannula is also disclosed.Type: GrantFiled: June 2, 2010Date of Patent: May 31, 2011Assignee: NeoVista, Inc.Inventors: Charles E. Larsen, Richard A. Hillstead, Roelof Trip, Eugene de Juan, Mark Humayun, Eberhard Fritz, Rainer Pintaske
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Publication number: 20110118745Abstract: Methods, systems and apparatus for relieving pressure in an organ such as, but not limited to, the eye are disclosed. The method includes implanting a bioabsorbable, channel into the selected area of the organ using a delivery apparatus.Type: ApplicationFiled: December 9, 2010Publication date: May 19, 2011Applicant: AQUESYS, INC.Inventors: DAO-YI YU, Cory Anderson, Roelof Trip, Ying Yang, Hoang Van Nguyen, Surag Mantri, Er-Ning Su, Stephen Cringle, James McCrea, Daniel Mufson, Colin Tan
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Publication number: 20110021906Abstract: Methods and apparatus for intraocular brachytherapy are disclosed in which a cannula is introduced into the eye for delivery of radiation to a target tissue. Techniques for properly locating the cannula with respect to the target tissue, for protecting non-target tissue, for regulating heat generated by x-ray emitters, and for combining therapies are disclosed.Type: ApplicationFiled: September 22, 2010Publication date: January 27, 2011Inventors: Richard A. Hillstead, Charles E. Larsen, Roelof Trip, Cory S. Anderson, Eberhard Fritz, Rainer Pintaske, John N. Hendrick, Benjamin W. Woodward
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Publication number: 20110004045Abstract: A method for performing intraocular brachytherapy and an apparatus for performing the same is disclosed. The apparatus preferably comprises a hand-held delivery device that advances a radiation source into an associated cannula or probe that is positioned adjacent the target tissue. The handpiece provides for shielded storage of the radiation source when retracted from the cannula and includes a slider mechanism for advancing and retracting the radiation source. The radiation source is mounted to a wire that has a flexible distal end and a relatively stiffer proximal end. A positioning system for the cannula is also disclosed.Type: ApplicationFiled: August 27, 2010Publication date: January 6, 2011Inventors: Charles E. Larsen, Richard A. Hillstead, Roelof Trip, Eugene deJuan, Mark S. Humayun, Eberhard Fritz, Rainer Pintaske, Sabine Willenkamp, Gerd T. Phillipps
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Publication number: 20100268013Abstract: A method for performing intraocular brachytherapy and an apparatus for performing the same is disclosed. The apparatus preferably comprises a hand-held delivery device that advances a radiation source into an associated cannula or probe that is positioned adjacent the target tissue. The handpiece provides for shielded storage of the radiation source when retracted from the cannula and includes a slider mechanism for advancing and retracting the radiation source. The radiation source is mounted to a wire that has a flexible distal end and a relatively stiffer proximal end. A positioning system for the cannula is also disclosed.Type: ApplicationFiled: June 2, 2010Publication date: October 21, 2010Inventors: Charles E. Larsen, Richard A. Hillstead, Roelof Trip, Eugene deJuan, Mark Humayun, Eberhard Fritz, Rainer Pintaske