Patents by Inventor Chad G. Harris
Chad G. Harris 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: 9433343Abstract: An endoscope includes a substantially rigid shaft having a distal end and a proximal portion, the shaft having a first lumen and a second lumen separate from the first lumen, the second lumen containing one or more objective lenses disposed at the distal end thereof. A housing is mounted on the proximal portion of the shaft, the housing including an eyepiece mount and a light input port. An image fiber bundle is disposed in the second lumen, the image fiber bundle extending proximally from adjacent the one or more objective lenses to the eyepiece mount. An illumination fiber bundle is disposed in the second lumen, the illumination fiber bundle extending proximally from the distal end of the shaft to the light input port.Type: GrantFiled: October 15, 2014Date of Patent: September 6, 2016Assignee: ENTELLUS MEDICAL, INC.Inventors: John R. Drontle, Chad G. Harris, Anthony J. Hanson, John A. Gauvin, Paul R. Lesch, Timothy B. Petrick, Thomas V. Ressemann
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Publication number: 20150031950Abstract: An endoscope includes a substantially rigid shaft having a distal end and a proximal portion, the shaft having a first lumen and a second lumen separate from the first lumen, the second lumen containing one or more objective lenses disposed at the distal end thereof. A housing is mounted on the proximal portion of the shaft, the housing including an eyepiece mount and a light input port. An image fiber bundle is disposed in the second lumen, the image fiber bundle extending proximally from adjacent the one or more objective lenses to the eyepiece mount. An illumination fiber bundle is disposed in the second lumen, the illumination fiber bundle extending proximally from the distal end of the shaft to the light input port.Type: ApplicationFiled: October 15, 2014Publication date: January 29, 2015Inventors: John R. Drontle, Chad G. Harris, Anthony J. Hanson, John A. Gauvin, Paul R. Lesch, Timothy B. Petrick, Thomas V. Ressemann
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Patent number: 8888686Abstract: An endoscope includes a substantially rigid shaft having a distal end and a proximal portion, the shaft having a first lumen and a second lumen separate from the first lumen, the second lumen containing one or more objective lenses disposed at the distal end thereof. A housing is mounted on the proximal portion of the shaft, the housing including an eyepiece mount and a light input port. An image fiber bundle is disposed in the second lumen, the image fiber bundle extending proximally from adjacent the one or more objective lenses to the eyepiece mount. An illumination fiber bundle is disposed in the second lumen, the illumination fiber bundle extending proximally from the distal end of the shaft to the light input port.Type: GrantFiled: September 23, 2009Date of Patent: November 18, 2014Assignee: Entellus Medical, Inc.Inventors: John R. Drontle, Chad G. Harris, Anthony J. Hanson, John A. Gauvin, Paul R. Lesch, Jr., Timothy B. Petrick, Thomas V. Ressemann
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Patent number: 7938799Abstract: The invention provides devices that can be used to deliver a therapeutic agent to a treatment site within the vessel of a patient at increased pressure, while limiting the contact with and pressure placed on the vessel walls. Devices according to the invention include an expandable structure arranged around and on a tube having a lumen. The expandable structure may include a sealing ring that makes contact with the interior surface of a vessel to prevent or decrease fluid flow during delivery of a therapeutic agent. This allows delivery of a therapeutic agent with decreased risk of injury to the treatment site. The invention also provides for large lumen diameters, preventing shearing stress on therapeutic agents such as cell slurries.Type: GrantFiled: July 20, 2007Date of Patent: May 10, 2011Assignee: Boston Scientific Scimed, Inc.Inventors: Samuel J. Epstein, Toby Freyman, Chad G. Harris, Timothy J. Mickley
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Publication number: 20110071349Abstract: An endoscope includes a substantially rigid shaft having a distal end and a proximal portion, the shaft having a first lumen and a second lumen separate from the first lumen, the second lumen containing one or more objective lenses disposed at the distal end thereof. A housing is mounted on the proximal portion of the shaft, the housing including an eyepiece mount and a light input port. An image fiber bundle is disposed in the second lumen, the image fiber bundle extending proximally from adjacent the one or more objective lenses to the eyepiece mount. An illumination fiber bundle is disposed in the second lumen, the illumination fiber bundle extending proximally from the distal end of the shaft to the light input port.Type: ApplicationFiled: September 23, 2009Publication date: March 24, 2011Applicant: ENTELLUS MEDICAL, INC.Inventors: John R. Drontle, Chad G. Harris, Anthony J. Hanson, John A. Gauvin, Paul R. Lesch, JR., Timothy B. Petrick, Thomas V. Ressemann
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Patent number: 7699829Abstract: An apparatus and method for catheter-based sensing and injection at a target site within a patient's body. An injection catheter is equipped with electrodes at its distal end which contact the surface of a target site, such as an AV node of the heart. Electrical signals detected at the target site by the electrodes are fed via leads to the proximal end of the catheter, where they are received by a monitor, such as an EKG monitor. If the electrical signals satisfy predetermined criteria, a needle within the catheter is extended into the target site, and a therapeutic agent is injected into the target site.Type: GrantFiled: January 19, 2005Date of Patent: April 20, 2010Assignee: Boston Scientific Scimed, Inc.Inventors: Chad G. Harris, Matthew L. Hawk, Timothy J. Mickley, Dorin Panescu, Maria Palasis, Jacob Rooney, Toby Freyman
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Publication number: 20100076403Abstract: A direct injection system with a small diameter that can be easily placed at a desired treatment location is provided, where the system comprises an outer guide catheter having a predefined bend at the distal end. For example, the outer guide catheter may be no larger than a 7 Fr catheter. According to the invention, various mechanisms may be used to alter the curvature of the predefined bend in the catheter, allowing an operator to easily place the distal end of an injection catheter at a desired treatment location. Alternatively, the injection catheter itself has a predefined bend at the distal end, wherein the curvature can be adjusted by adjusting the position of the injection catheter within a guide catheter.Type: ApplicationFiled: October 23, 2009Publication date: March 25, 2010Applicant: BOSTON SCIENTIFIC SCIMED, INC.Inventors: Chad G. HARRIS, Timothy J. MICKLEY
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Patent number: 7678077Abstract: An apparatus for the injection of therapeutic and other agents at a target site within a patient's body. A catheter including a first elongated shaft having a distal end and a proximal end and a lumen extending therebetween. The catheter also including a second elongated shaft slidingly disposed in the first elongated shaft, the second elongated shaft having a distal end and a proximal and a lumen extending therebetween. The catheter further including a third elongated shaft disposed in and attached to the second elongate shaft, the third elongated shaft to move in a one-to-one relationship with the first elongated shaft and the second elongated shaft to maintain a predetermined needle deployment length as each are subjected to various bend configurations.Type: GrantFiled: February 20, 2004Date of Patent: March 16, 2010Assignee: Boston Scientific Scimed, Inc.Inventors: Chad G. Harris, Matthew L. Hawk, Timothy J. Mickley
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Patent number: 7565208Abstract: An apparatus and method for catheter-based sensing and injection at a target site within a patient's body. An injection catheter is equipped with electrodes at its distal end which contact the surface of a target site, such as an AV node of the heart. Electrical signals detected at the target site by the electrodes are fed via leads to the proximal end of the catheter, where they are received by a monitor, such as an EKG monitor. If the electrical signals satisfy predetermined criteria, a needle within the catheter is extended into the target site, and a therapeutic agent is injected into the target site.Type: GrantFiled: January 19, 2005Date of Patent: July 21, 2009Assignee: Boston Scientific Scimed, Inc.Inventors: Chad G. Harris, Matthew L. Hawk, Timothy J. Mickley, Dorin Panescu, Maria Palasis, Jacob Rooney
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Publication number: 20080039786Abstract: The invention provides devices that can be used to deliver a therapeutic agent to a treatment site within the vessel of a patient at increased pressure, while limiting the contact with and pressure placed on the vessel walls. Devices according to the invention include an expandable structure arranged around and on a tube having a lumen. The expandable structure may include a sealing ring that makes contact with the interior surface of a vessel to prevent or decrease fluid flow during delivery of a therapeutic agent. This allows delivery of a therapeutic agent with decreased risk of injury to the treatment site. The invention also provides for large lumen diameters, preventing shearing stress on therapeutic agents such as cell slurries.Type: ApplicationFiled: July 20, 2007Publication date: February 14, 2008Applicant: BOSTON SCIENTIFIC SCIMED, INC.Inventors: Samuel J. EPSTEIN, Toby FREYMAN, Chad G. HARRIS, Timothy J. MICKLEY
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Patent number: 6264630Abstract: A catheter is disclosed which includes an over-the-wire type balloon catheter, with a guide wire, wherein the catheter incorporates an axially movable inner tubular member which extends proximally through a proximal manifold lumen. The inner tubular member extends distally beyond the distal end of the outer tubular member with the balloon member distal waist affixed to the inner tubular member proximate the distal end. The catheter incorporates axial tension members which function to transmit force to the distal tip when the movable inner tubular member is oscillated axially. The axial tension members are preferably a plurality of wires, each having a proximal end affixed to the outside diameter of the inner tubular member proximate the manifold, and each having a distal end affixed to the outside diameter of the inner tubular member a substantial distance distal of the manifold.Type: GrantFiled: December 23, 1998Date of Patent: July 24, 2001Assignee: SciMed Life Systems, Inc.Inventors: Timothy J. Mickley, Chad G. Harris
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Patent number: 5961536Abstract: A variable length balloon catheter is provided. The balloon catheter includes a catheter shaft having a distal portion, a balloon and an adjustment device. The balloon is in fluid communication with a distal end of the catheter shaft. The adjustment device includes an outer sleeve and an attachment structure. The outer sleeve is configured to be generally co-axially received over the distal portion of the catheter shaft and includes a distal end configured to restrict inflation proximal the distal end. Further, the outer sleeve is configured such that at least a portion of the outer sleeve is slidable relative to the distal portion of the catheter shaft such that a distal end of the outer sleeve relative to the balloon can be varied.Type: GrantFiled: October 14, 1997Date of Patent: October 5, 1999Assignee: SciMed Life Systems, Inc.Inventors: Timothy J. Mickley, Steven P. Mertens, Christopher R. Larson, Chad G. Harris, John H. Carlson, II