Patents by Inventor Chris A. Rothe

Chris A. Rothe 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).

  • Patent number: 9510732
    Abstract: Methods and apparatus for efficient purging from an imaging hood are described which facilitate the visualization of tissue regions through a clear fluid. Such a system may include an imaging hood having one or more layers covering the distal opening and defines one or more apertures which control the infusion and controlled retention of the clearing fluid into the hood. In this manner, the amount of clearing fluid may be limited and the clarity of the imaging of the underlying tissue through the fluid within the hood may be maintained for relatively longer periods of time by inhibiting, delaying, or preventing the infusion of surrounding blood into the viewing field. The aperture size may be controlled to decrease or increase through selective inflation of the membrane or other mechanisms.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: December 6, 2016
    Assignee: Intuitive Surgical Operations, Inc.
    Inventors: David Miller, Vahid Saadat, Zachary J. Malchano, Ruey-Feng Peh, Aseem K. Thakur, Chris A. Rothe, Edmund Tam
  • Publication number: 20160157702
    Abstract: Systems and methods for unobstructed visualization and ablation, particularly of the pulmonary veins, are described herein. Such a system may include a deployment catheter and an attached imaging hood deployable into an expanded configuration as well as one or more expandable anchors which are temporarily securable within a respective pulmonary vein while allowing blood flow to pass through the anchor unimpeded. With the one or more non-impeding anchors secured within a respective pulmonary vein, ablation of the tissue surrounding the ostium or several ostia may be effected with the catheter while the tissue is under direct visualization.
    Type: Application
    Filed: February 16, 2016
    Publication date: June 9, 2016
    Inventors: Vahid Saadat, Ruey-Feng Peh, Chris A. Rothe, Edmund Tam
  • Publication number: 20160095501
    Abstract: Off-axis visualization systems are described herein which facilitate the deployment, visualization, and retraction of an imaging element from a catheter. Such a system may include a deployment catheter and an attached imaging hood deployable into an expanded configuration as well as an imaging element, such as a CCD or CMOS imager, which may be deployed from a low profile configuration into a position which is off-axis relative to a longitudinal axis of the deployment catheter and/or imaging hood.
    Type: Application
    Filed: December 4, 2015
    Publication date: April 7, 2016
    Inventors: Vahid Saadat, Chris A. Rothe, Ruey-Feng Peh, Edmund A. Tam
  • Publication number: 20160038005
    Abstract: Tissue visualization devices and variations thereof are described herein where such devices may utilize a variety of methods for facilitating clearing of the device of opaque bodily fluids and sealing between the device and the underlying tissue surface. Additionally, methods and devices for enhancing navigation of the device through a patient body are also described.
    Type: Application
    Filed: October 20, 2015
    Publication date: February 11, 2016
    Inventors: Vahid Saadat, Chris A. Rothe, Edmund A. Tam, Ruey-Feng Peh
  • Patent number: 9226648
    Abstract: Off-axis visualization systems are described herein which facilitate the deployment, visualization, and retraction of an imaging element from a catheter. Such a system may include a deployment catheter and an attached imaging hood deployable into an expanded configuration as well as an imaging element, such as a CCD or CMOS imager, which may be deployed from a low profile configuration into a position which is off-axis relative to a longitudinal axis of the deployment catheter and/or imaging hood.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: January 5, 2016
    Assignee: Intuitive Surgical Operations, Inc.
    Inventors: Vahid Saadat, Chris A. Rothe, Ruey-Feng Peh, Edmund Tam
  • Patent number: 9220402
    Abstract: Visualization and treatment of tissue regions via percutaneous access methods and devices are described herein. The system may include a deployment catheter and an expandable imaging hood. In use, the hood may be introduced from outside the patient body through a percutaneous incision and advanced through a subxiphoid pathway, for example, to the heart where entry may be accomplished via an incision through the left atrial appendage. Once within the heart, the hood can be advanced to any chamber to visualize and/or treat tissue by placing the hood against the tissue to be imaged and pumping translucent fluids into the hood until the fluid displaces any blood, thereby leaving a clear region of tissue to be imaged via an imaging element in the deployment catheter. Additionally, any number of therapeutic tools can also be passed through the deployment catheter and into the imaging hood for treating the tissue of interest.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: December 29, 2015
    Assignee: Intuitive Surgical Operations, Inc.
    Inventors: Chris A. Rothe, Vahid Saadat, Kevin H. Van Bladel
  • Publication number: 20150366440
    Abstract: A medical manipulation assembly comprises a sheath steerable in response to rotational movement of a sheath steering mechanism. The assembly also comprises a catheter extendable through the sheath. The catheter is steerable in response to rotational movement of a catheter steering mechanism. The sheath and catheter are independently steerable. The assembly also comprises a set of control wires. At least one of the sheath or the catheter includes a plurality of lumens with at least two of the plurality of lumens each sized for passage of one of the control wires of the set of control wires. The steerable catheter includes a working channel sized to receive a visualization instrument therethrough.
    Type: Application
    Filed: September 2, 2015
    Publication date: December 24, 2015
    Inventors: Chris A. Rothe, David Miller, Vahid Saadat, Ruey-Feng Peh, Edmund Tam
  • Patent number: 9192287
    Abstract: Tissue visualization devices and variations thereof are described herein where such devices may utilize a variety of methods for facilitating clearing of the device of opaque bodily fluids and sealing between the device and the underlying tissue surface. Additionally, methods and devices for enhancing navigation of the device through a patient body are also described.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: November 24, 2015
    Assignee: Intuitive Surgical Operations, Inc.
    Inventors: Vahid Saadat, Chris A. Rothe, Edmund Tam, Ruey-Feng Peh
  • Publication number: 20150314107
    Abstract: A medical manipulation assembly comprises an elongated distal steerable portion with a distal working channel extending through the elongated distal steerable portion. The assembly also comprises an elongated proximal steerable portion arranged proximally of the elongated distal assembly portion. A proximal working channel extends through the elongated proximal steerable portion. The assembly also comprises a distal steering mechanism to bend the distal steerable portion in response to movement of the distal steering mechanism. The assembly also comprises a proximal steering mechanism to bend the proximal steerable portion, independently of the distal steerable portion, in response to rotational movement of the proximal steering mechanism. The assembly also comprises distal pullwire(s) extending between the elongated distal steerable portion and the distal steering mechanism and proximal pullwire(s) extending between the elongated proximal steerable portion and the proximal steering mechanism.
    Type: Application
    Filed: July 9, 2015
    Publication date: November 5, 2015
    Inventors: Chris A. Rothe, Juan Diego Perea, David Miller, Vahid Saadat, Zachary J. Malchano, Ruey-Feng Peh
  • Patent number: 9155452
    Abstract: Complex shape steerable tissue visualization and manipulation catheters and their methods of use of disclosed herein. The deployment catheter may be articulated utilizing various steering mechanisms to adjust a position of a visualization hood or membrane through which underlying tissue may be visualized.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: October 13, 2015
    Assignee: Intuitive Surgical Operations, Inc.
    Inventors: Chris A. Rothe, David Miller, Vahid Saadat, Ruey-Feng Peh, Edmund Tam
  • Patent number: 9155587
    Abstract: Visual electrode ablation systems are described herein which include a deployment catheter and an attached imaging hood deployable into an expanded configuration. In use, the imaging hood is placed against or adjacent to a region of tissue to be imaged in a body lumen that is normally filled with an opaque bodily fluid such as blood. A translucent or transparent fluid, such as saline, can be pumped into the imaging hood until the fluid displaces any blood, thereby leaving a clear region of tissue to be imaged via an imaging element in the deployment catheter. An electric current may be passed through the fluid such that it passes directly to the tissue region being imaged and the electrical energy is conducted through the fluid without the need for a separate ablation probe or instrument to ablate the tissue being viewed.
    Type: Grant
    Filed: May 14, 2009
    Date of Patent: October 13, 2015
    Assignee: INTUITIVE SURGICAL OPERATIONS, INC.
    Inventors: N. Parker Willis, Zachary J. Malchano, Chris A. Rothe, Vahid Saadat, Ruey-Feng Peh, David Miller, Edmund Tam
  • Publication number: 20150250382
    Abstract: In vivo visualization systems are described which facilitate tissue treatment by a user in utilizing real time visualized tissue images with generated three-dimensional models of the tissue region of interest, such as the left atrial chamber of a subject's heart. Directional indicators on the visualized tissue as well as the imaging systems may be utilized while other variations may utilize image rotation or manipulation of visualized tissue regions to facilitate catheter control. Moreover, visualized tissue regions may be combined with imaged tissue regions as well as navigational information to further facilitate tissue treatments.
    Type: Application
    Filed: May 18, 2015
    Publication date: September 10, 2015
    Inventors: Vahid Saadat, Zachary J. Malchano, Jason Paul Watson, Anthony Jonathan Fileds, Chris Rothe, Bryan Wylie, Veerappan Swaminathan
  • Patent number: 9101735
    Abstract: Catheter control systems which facilitate the tracking of an angle of deflection of a catheter distal end can be used for any number of procedures where catheter orientation relative to the body is desirable, e.g., in transseptal access procedures where an accurate angle of puncture of the septal wall is desirable. Such control systems may comprise a steerable handle which is oriented relative to the catheter steerable section to provide for consistent catheter articulation upon corresponding manipulation of the steering ring. Another variation may utilize an orientation indicator to track the deflectable distal end. For instance, an orientation marker as visualized through an imaging hood on the distal end may correspond to identical orientation markers on the control handle such that articulation of a steering mechanism in a direction relative to the orientation markers deflects the catheter distal end in a corresponding direction relative to the visualized orientation markers.
    Type: Grant
    Filed: July 7, 2009
    Date of Patent: August 11, 2015
    Assignee: INTUITIVE SURGICAL OPERATIONS, INC.
    Inventors: Chris A. Rothe, Juan Diego Perea, David Miller, Vahid Saadat, Zachary J. Malchano, Ruey-Feng Peh
  • Patent number: 9055906
    Abstract: In vivo visualization systems are described which facilitate tissue treatment by a user in utilizing real time visualized tissue images with generated three-dimensional models of the tissue region of interest, such as the left atrial chamber of a subject's heart. Directional indicators on the visualized tissue as well as the imaging systems may be utilized while other variations may utilize image rotation or manipulation of visualized tissue regions to facilitate catheter control. Moreover, visualized tissue regions may be combined with imaged tissue regions as well as navigational information to further facilitate tissue treatments.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: June 16, 2015
    Assignee: INTUITIVE SURGICAL OPERATIONS, INC.
    Inventors: Vahid Saadat, Zachary J. Malchano, Jason P. Watson, Antony J. Fields, Chris A. Rothe, Bryan Wylie, Veerappan Swaminathan
  • Patent number: 8992420
    Abstract: Methods and apparatus for off-axis visualization are described herein. An endoluminal tissue manipulation assembly is disclosed which provides for a stable endoluminal platform and which also provides for effective triangulation of tools. Such an apparatus may comprise an optionally shape-lockable elongate body defining a longitudinal axis and adapted for endoluminal advancement in a patient body, at least one articulatable visualization lumen disposed near or at a distal region of the elongate body, the at least one articulating visualization lumen being adapted to articulate off-axis relative to a longitudinal axis of the elongate body, and at least one articulatable tool arm member disposed near or at the distal region of the elongate body, the at least one articulatable tool arm member being adapted to articulate off-axis and manipulate a tissue region of interest.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: March 31, 2015
    Assignee: USGI Medical, Inc.
    Inventors: Tracy D. Maahs, Richard C. Ewers, Arvin T. Chang, Chris Rothe, Eugene C. Chen, Marvin C. Elmer, Gilbert Madrid, Kabir Gambhir
  • Patent number: 8926634
    Abstract: Apparatus and methods for manipulating and securing tissue are described herein. In creating tissue folds within the body of a patient, a tissue manipulation assembly may generally have an elongate tubular member, an engagement member slidably disposed through the tubular member and a distal end adapted to engage tissue via a helical member, tissue stabilizing members positioned at the tubular member distal end which are adapted to stabilize tissue therebetween, and a delivery tube pivotable about the tissue stabilizer. The stabilizing members can be adapted to become angled relative to a longitudinal axis of the elongate tubular member. Moreover, one or all the articulation controls and functions can be integrated into a singular handle assembly connectable to the tissue manipulation assembly via a rigid or flexible tubular body.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: January 6, 2015
    Assignee: USGI Medical, Inc.
    Inventors: Chris A. Rothe, Richard C. Ewers, Cang C. Lam, Vahid Saadat, Kenneth J. Michlitsch
  • Publication number: 20140316406
    Abstract: A method of ablating a tissue region within a blood-filled environment comprises restraining a fluid within a visualization field in a portion of the blood-filled environment and visualizing the tissue region through the fluid within the visualization field. The method also includes transmitting ablating electrical energy from the fluid into the visualized tissue region.
    Type: Application
    Filed: March 26, 2014
    Publication date: October 23, 2014
    Applicant: Intuitive Surgical Operations, Inc.
    Inventors: N. Parker WILLIS, Zachary J. Malchano, Chris A. Rothe, Vahid Saadat, Ruey-Feng Peh, David Miller, Edmond Tam
  • Patent number: 8758229
    Abstract: Axial visualization systems which utilize axially aligned imaging instruments for visualizing through an imaging hood purged of blood via a transparent fluid are described where an imaging element extending from a support shaft may be aligned within a working lumen defined through a deployment catheter. The imaging element may be positioned distal to the hood in its collapsed state and within the hood in its expanded state. The imaging element may be configured to seat itself securely within the catheter or to angle itself to adjust the viewing angle. Additionally, a disposable visualization sheath having a transparent lens may also be utilized to house an imaging instrument therein.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: June 24, 2014
    Assignee: Intuitive Surgical Operations, Inc.
    Inventors: Vahid Saadat, Chris A. Rothe, Ruey-Feng Peh, Edmund Tam
  • Publication number: 20140148828
    Abstract: Apparatus and methods are provided for forming a gastrointestinal tissue fold by engaging tissue at a first tissue contact point and moving the first tissue contact point from a position initially distal to, or in line with, a second tissue contact point to a position proximal of the second contact point, thereby forming the tissue fold, and extending an anchor assembly through the tissue fold from a vicinity of the second tissue contact point. Adjustable anchor assemblies; as well as anchor delivery systems, shape-lockable guides and methods for endoluminally performing medical procedures, such as gastric reduction, treatment of gastroesophageal reflux disease, resection of lesions, and treatment of bleeding sites; are also provided.
    Type: Application
    Filed: November 28, 2012
    Publication date: May 29, 2014
    Applicant: USGI MEDICAL, INC.
    Inventors: Richard C. Ewers, Vahid C. Saadat, Kenneth J. Michlitsch, Chris A. Rothe, Rodney C. Brenneman, Cang C. Lam, Eugene C. Chen
  • Patent number: 8709008
    Abstract: Visual electrode ablation systems are described herein which include a deployment catheter and an attached imaging hood deployable into an expanded configuration. In use, the imaging hood is placed against or adjacent to a region of tissue to be imaged in a body lumen that is normally filled with an opaque bodily fluid such as blood. A translucent or transparent fluid, such as saline, can be pumped into the imaging hood until the fluid displaces any blood, thereby leaving a clear region of tissue to be imaged via an imaging element in the deployment catheter. An electric current may be passed through the fluid such that it passes directly to the tissue region being imaged and the electrical energy is conducted through the fluid without the need for a separate ablation probe or instrument to ablate the tissue being viewed.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: April 29, 2014
    Assignee: Intuitive Surgical Operations, Inc.
    Inventors: N. Parker Willis, Zachary J. Malchano, Chris A. Rothe, Vahid Saadat, Ruey-Feng Peh, David Miller, Edmund Tam