Patents by Inventor Vahid Saadat

Vahid Saadat 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: 10390685
    Abstract: A system comprises a deployment catheter defining at least one lumen and a hood projecting distally from the deployment catheter and defining an open area. The open area is in direct fluid communication with the at least one lumen. The system also comprises an elongate channel directly coupled to the hood such that the elongate channel terminates distally into the open area. The elongate channel extends proximally from an outer surface of the hood and is bounded proximally at a proximal pocket surface. The system also comprises an imaging element. The imaging element is sized to pass into the elongated channel at a distal end of the elongate channel. Proximal movement within the elongated channel is restricted by the proximal pocket surface. The system also comprises a control member extending within the elongate channel and through the proximal pocket surface for moving the imaging element through the elongate channel.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: August 27, 2019
    Assignee: INTUITIVE SURGICAL OPERATIONS, INC.
    Inventors: Vahid Saadat, Chris A. Rothe, Ruey-Feng Peh, Edmund A. Tam
  • Patent number: 10368729
    Abstract: A method of inhibiting a flow of a purging fluid from a tissue visualization device comprises positioning an imaging hood attached to a distal end of a flexible elongate shaft in proximity to a tissue region to be visualized The method also comprises introducing the purging fluid into an inflation member suspended within an open area of the imaging hood. The inflation member includes at least one aperture on a proximal portion of the inflation member. The method also comprises inflating the inflation member to a partially inflated state in which the inflation member is circumferentially separated from an inner surface of the hood to form an annular flow path for the purging fluid from the at least one aperture, between the inner surface of the hood and the inflation member, and into fluid communication with an environment external to the hood.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: August 6, 2019
    Assignee: INTUITIVE SURGICAL OPERATIONS, INC.
    Inventors: David Miller, Vahid Saadat, Zachary J. Malchano, Ruey-Feng Peh, Aseem K. Thakur, Christopher A. Rothe, Edmund Tam
  • Publication number: 20190216625
    Abstract: A tissue manipulation system comprises a reconfigurable hood structure with a distal end. The structure has a low profile delivery configuration and an expanded deployed configuration which defines an open area bounded at least in part by the structure and by an interface surface extending across the hood structure distal end. The open area is in fluid communication with an environment external to the hood structure. The system also includes a catheter in communication with the open area such that introduction of a fluid through the catheter purges the open area of bodily fluid. The interface surface is slanted relative to the catheter longitudinal axis when the hood structure is in the expanded deployed configuration. The system also includes an imaging element positioned on the hood structure such that the open area is visualized through the fluid by the element.
    Type: Application
    Filed: March 20, 2019
    Publication date: July 18, 2019
    Inventors: David Miller, Ruey-Feng Peh, Vahid Saadat
  • Patent number: 10335131
    Abstract: A method of inhibiting tissue migration comprises positioning an open area of a hood against or adjacent to a tissue region. The method also comprises displacing an opaque fluid with a transparent fluid from the open area. The method includes engaging a portion of the tissue region within the open area via an end effector advanced through the open area and which grasps onto the portion. The end effector includes a tapered section, tapered along its entire length, through which a lumen extends. The tapered section includes threads extending from a surface of the tapered section in a direction orthogonal to the longitudinal axis. The tissue region is pierced while displacing the opaque fluid with the transparent fluid through the distal opening of the hood and while maintaining engagement of the portion of the tissue region such that distal movement of the tissue is inhibited.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: July 2, 2019
    Assignee: INTUITIVE SURGICAL OPERATIONS, INC.
    Inventors: Vahid Saadat, Ruey-Feng Peh, Edmund A. Tam, Chris A. Rothe
  • Patent number: 10307200
    Abstract: Apparatus and methods for treating conditions such as rhinitis are disclosed herein where a distal end of a probe shaft is introduced through the nasal cavity where the distal end has an end effector with a first configuration having a low-profile which is shaped to manipulate tissue within the nasal cavity. The distal end may be positioned into proximity of a tissue region having a post nasal nerve associated with a middle or inferior nasal turbinate. Once suitably positioned, the distal end may be reconfigured from the first configuration to a second configuration which is shaped to contact and follow the tissue region and the post nasal nerve may then be ablated via the distal end. Ablation may be performed using various mechanisms, such as cryotherapy, and optionally under direct visualization.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: June 4, 2019
    Assignee: Arrinex, Inc.
    Inventor: Vahid Saadat
  • Patent number: 10278588
    Abstract: A system comprises a catheter and an electromagnetic sensor assembly supported at a distal end of the catheter. The electromagnetic sensor assembly includes a magnetic strut spirally extended away from the distal end of the catheter around an open area distal of the catheter. The system also comprises an imaging element supported at a distal end of the catheter inside the open area. The imaging element acquires an image of the tissue surface region. The system also comprises a processor that receives a position of the electromagnetic sensor assembly and the tissue surface image. The processor maps the position of the electromagnetic sensor assembly and tissue surface image together. The system also comprises a barrier reconfigurable from a low-profile shape to an expanded deployment shape projecting from a distal end of the catheter. The electromagnetic sensor assembly is spirally configured over the barrier.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: May 7, 2019
    Assignee: INTUITIVE SURGICAL OPERATIONS, INC.
    Inventors: Vahid Saadat, Ruey-Feng Peh, Edmund A. Tam
  • Patent number: 10278849
    Abstract: A tissue manipulation system comprises a reconfigurable hood structure with a distal end. The hood structure has a membrane extending across the hood structure distal end. The membrane includes an aperture with an aperture diameter smaller than an outer lip diameter of the hood structure in the expanded deployed configuration. The system also includes a fluid lumen in communication with the open area and an inflatable balloon member translatable through the aperture in the membrane and distal to the open area. The system also comprises an expandable stent positioned upon the balloon member. The stent has an unexpanded configuration sized to pass through the aperture in the membrane.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: May 7, 2019
    Assignee: INTUITIVE SURGICAL OPERATIONS, INC.
    Inventors: David Miller, Vahid Saadat, Ruey-Feng Peh
  • Publication number: 20190125166
    Abstract: A tissue imaging assembly includes a steerable sheath and a steerable catheter deployable within the sheath. The tissue imaging assembly also includes an imaging hood at a distal end of the steerable catheter. The imaging hood is independently translatable with respect to the steerable sheath and the steerable catheter. The steerable catheter includes an imaging element and a lumen for delivering an elongate instrument out a distal region of the steerable catheter.
    Type: Application
    Filed: December 18, 2018
    Publication date: May 2, 2019
    Inventor: Vahid Saadat
  • Publication number: 20190099175
    Abstract: Apparatus and methods for positioning and securing anchors are disclosed herein. The anchors are adapted to be delivered and implanted into or upon tissue, particularly tissue within the gastrointestinal system of a patient. The anchor is adapted to slide uni-directionally over suture such that a tissue plication may be cinched between anchors. A locking mechanism, either within the anchor itself or positioned proximally of the anchor, may allow for the uni-directional translation of the anchor while enabling the anchor to be locked onto the suture if the anchor is pulled, pushed, or otherwise urged in the opposite direction along the suture. This uni-directional anchor locking mechanism facilitates cinching of the tissue plication between the anchors, and it may be utilized in one or several anchors in cinching a tissue fold.
    Type: Application
    Filed: December 3, 2018
    Publication date: April 4, 2019
    Inventors: Vahid Saadat, Marvin C. Elmer
  • Publication number: 20190083174
    Abstract: A tissue treatment assembly comprising an elongate flexible energy delivery device extending along a longitudinal axis and terminating at a distal opening and a circuit assembly including a plurality of conductors wrapped in a spiral configuration around the elongate flexible energy delivery device.
    Type: Application
    Filed: October 12, 2018
    Publication date: March 21, 2019
    Inventors: Jason Paul Watson, Edmund Tam, Vahid Saadat
  • Publication number: 20190083157
    Abstract: Apparatus and methods for treating conditions such as rhinitis are disclosed herein where a distal end of a probe shaft is introduced through the nasal cavity where the distal end has an end effector with a first configuration having a low-profile which is shaped to manipulate tissue within the nasal cavity. The distal end may be positioned into proximity of a tissue region having a post nasal nerve associated with a middle or inferior nasal turbinate. Once suitably positioned, the distal end may be reconfigured from the first configuration to a second configuration which is shaped to contact and follow the tissue region and the post nasal nerve may then be ablated via the distal end. Ablation may be performed using various mechanisms, such as cryotherapy, and optionally under direct visualization.
    Type: Application
    Filed: November 16, 2018
    Publication date: March 21, 2019
    Inventor: Vahid Saadat
  • Publication number: 20190046013
    Abstract: In one example, a system includes a deployment catheter defining at least one lumen therethrough. The system further includes a balloon member projecting distally from a distal end of the deployment catheter and defining an area therein, wherein the area is in fluid communication with the at least one lumen. The system further includes a first opening at the distal end of the balloon member, a first instrument lumen extending through the balloon member from the distal end of the deployment catheter to the first opening, and a visualization element disposed within the balloon member for visualizing tissue external to the balloon member.
    Type: Application
    Filed: August 21, 2018
    Publication date: February 14, 2019
    Inventors: Vahid Saadat, Amir Abolfathi, Christopher A. Rothe, Kevin H. Van Bladel
  • Patent number: 10201687
    Abstract: Surgical devices with integrated, visualization and cauterization are described herein where such devices include an elongate structure having a central lumen and an expandable space-creating structure having at least one expandable leaflet mounted in the vicinity of the distal end and is configured for placement within a mammalian body proximate to a therapeutic target. Also included is a proximal terminal having an actuator mounted in the vicinity of the proximal end and is configured to remain outside of said body and provide an actuation mechanism for actuating the space-creating structure. Additionally, at least one fluid connector and said central lumen is in fluid communication between an interior of the expandable space-creating structure and the at least one fluid connector.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: February 12, 2019
    Assignee: Arrinex, Inc.
    Inventor: Vahid Saadat
  • Publication number: 20190021577
    Abstract: A system comprises a steerable sheath including a passageway therethrough and a steerable segment extendable from the passageway. The steerable segment defines a lumen. The system also includes an imaging element extending from a distal end of the steerable segment.
    Type: Application
    Filed: September 24, 2018
    Publication date: January 24, 2019
    Inventors: Ruey-Feng Peh, Vahid Saadat, Christopher A. Rothe
  • Publication number: 20190014975
    Abstract: A system comprises a deployment catheter defining at least one lumen therethrough and a hood having a low profile delivery configuration and an expanded deployed configuration defining an open area of the hood. The system further comprises a laser generator sized and shaped to be passed through the lumen of the deployment catheter. The laser generator is configured to generate a pattern on tissue surface that is distal to the hood. The system further comprises a visualization element disposed within or adjacent to the open area of the hood for visualizing the tissue surface.
    Type: Application
    Filed: August 20, 2018
    Publication date: January 17, 2019
    Inventor: Vahid Saadat
  • Publication number: 20190008360
    Abstract: A robotic assembly comprises a deployment catheter including a steerable distal region and further comprises a balloon assembly coupled to the steerable distal region.
    Type: Application
    Filed: August 30, 2018
    Publication date: January 10, 2019
    Inventors: Ruey-Feng Peh, Vahid Saadat, Edmund A. Tam
  • Patent number: 10172608
    Abstract: Apparatus and methods for positioning and securing anchors are disclosed herein. The anchors are adapted to be delivered and implanted into or upon tissue, particularly tissue within the gastrointestinal system of a patient. The anchor is adapted to slide uni-directionally over suture such that a tissue plication may be cinched between anchors. A locking mechanism, either within the anchor itself or positioned proximally of the anchor, may allow for the uni-directional translation of the anchor while enabling the anchor to be locked onto the suture if the anchor is pulled, pushed, or otherwise urged in the opposite direction along the suture. This uni-directional anchor locking mechanism facilitates cinching of the tissue plication between the anchors, and it may be utilized in one or several anchors in cinching a tissue fold.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: January 8, 2019
    Assignee: USGI Medical LLC
    Inventors: Vahid Saadat, Marvin C. Elmer
  • Patent number: 10159538
    Abstract: Devices and methods for treating rhinitis are described where the devices are configured to ablate a single nerve branch or multiple nerve branches of the posterior nasal nerves located within the nasal cavity. A surgical probe may be inserted into the sub-mucosal space of a lateral nasal wall and advanced towards a posterior nasal nerve associated with a middle nasal turbinate or an inferior nasal turbinate into a position proximate to the posterior nasal nerve where neuroablation of the posterior nasal nerve may be performed with the surgical probe. The probe device may utilize a visible light beacon that provides trans-illumination of the sub-mucosal tissue or an expandable structure disposed in the vicinity of the distal end of the probe shaft to enable the surgeon to visualize the sub-mucosal position of the distal end of the surgical probe from inside the nasal cavity using, e.g., an endoscope.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: December 25, 2018
    Assignee: Arrinex, Inc.
    Inventors: Bryant Lin, David Moosavi, Mojgan Saadat, Vahid Saadat
  • Publication number: 20180344501
    Abstract: Apparatus 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: Application
    Filed: July 24, 2018
    Publication date: December 6, 2018
    Inventors: Vahid Saadat, Richard C. Ewers, Cang C. Lam, Robert A. Vaughan, Chris Rothe, Kenneth H. Michlitsch
  • Publication number: 20180344411
    Abstract: Apparatus and methods for treating and monitoring conditions such as rhinitis are disclosed herein. The technology utilizes ultrasound scans to identify target treatment sites, and monitor the treatment of a patient undergoing a treatment. The treatment may be an ablation treatment of a nasal nerve, for example the PNN for the treatment of nasal conditions, such as rhinitis. The ultrasound scans are performed within the nasal cavity with an ultrasound probe or a combined ultrasound and ablation probe and may use Doppler, A-mode, B-mode, M-mode or other ultrasound and non-ultrasound modalities to detect and monitor the target treatment sites.
    Type: Application
    Filed: April 30, 2018
    Publication date: December 6, 2018
    Inventors: Brian Fahey, William Jason Fox, Bryant Lin, Mojgan Saadat, Vahid Saadat