Patents by Inventor Richard C. Ewers

Richard C. Ewers 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: 11045341
    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: Grant
    Filed: July 24, 2018
    Date of Patent: June 29, 2021
    Assignee: USGI MEDICAL, INC.
    Inventors: Vahid Saadat, Richard C. Ewers, Cang C. Lam, Robert A. Vaughan, Chris Rothe, Kenneth H. Michlitsch
  • Patent number: 11039735
    Abstract: A surgical sheath for use in endoscopic trans-nasal or intra-ocular surgery is made of a braid material. The sheath may be manufactured by placing a length of braided tube material over a mandrel. The braid material is conformed to the shape of the mandrel and is then heat set. An atraumatic end may be made by folding or rolling one or both ends of the sheath. A coating may also optionally be applied to the braid material. The sheath reduces collateral trauma to the tissues in the surgical pathway.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: June 22, 2021
    Assignee: SPIWAY LLC
    Inventors: Eugene Chen, Richard C. Ewers, Cang Lam, Stephanie Frimond
  • Publication number: 20210137364
    Abstract: A surgical sheath adapted for use in the nasal cavity has an elongated hollow body made of a braided material having interstitial spaces with a dimension of 0.25 mm to 1.50 mm. The interstitial spaces filled with a filling material, such as silicone. The sheath has a low profile configuration during placement into the naris, and may be stretched into an expanded configuration. In methods of placing the sheath in the naris, the sheath is folded and then pulled into the naris using a surgical tool.
    Type: Application
    Filed: January 19, 2021
    Publication date: May 13, 2021
    Inventors: Eugene Chen, Richard C. Ewers, Cang Lam, Stephanie Frimond
  • Patent number: 10986984
    Abstract: A surgical sheath adapted for use in the nasal cavity has an elongated hollow body made of a braided material having interstitial spaces with a dimension of 0.25 mm to 1.50 mm. The interstitial spaces filled with a filling material, such as silicone. The sheath has a low profile configuration during placement into the naris, and may be stretched into an expanded configuration. In methods of placing the sheath in the naris, the sheath is folded and then pulled into the naris using a surgical tool.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: April 27, 2021
    Assignee: SPIWAY LLC
    Inventors: Eugene Chen, Richard C. Ewers, Cang Lam, Stephanie Frimond
  • Publication number: 20210000331
    Abstract: A direct vision cryosurgical and methods of use are described herein where the device may generally comprise an elongated rigid structure with a distal end, a proximal end, and a central lumen. The distal end may comprise a non-coring optically transparent needle tip with at least one lateral fenestration in communication with the central lumen. The distal end may also house at least one imaging device configured for distal imaging. A proximal end of the device may comprise a handle with a means for connecting the imaging device(s) to an imaging display(s), and a means for accessing bodily tissue in the vicinity of the distal end with a cryo-ablation probe through the central lumen and the lateral fenestration(s) for diagnostic or therapeutic purposes.
    Type: Application
    Filed: September 23, 2020
    Publication date: January 7, 2021
    Inventors: Vahid Saadat, Matthew Herron, Richard C. Ewers
  • Patent number: 10813533
    Abstract: A direct vision cryosurgical and methods of use are described herein where the device may generally comprise an elongated rigid structure with a distal end, a proximal end, and a central lumen. The distal end may comprise a non-coring optically transparent needle tip with at least one lateral fenestration in communication with the central lumen. The distal end may also house at least one imaging device configured for distal imaging. A proximal end of the device may comprise a handle with a means for connecting the imaging device(s) to an imaging display(s), and a means for accessing bodily tissue in the vicinity of the distal end with a cryo-ablation probe through the central lumen and the lateral fenestration(s) for diagnostic or therapeutic purposes.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: October 27, 2020
    Assignee: Arrinex, Inc.
    Inventors: Vahid Saadat, Matthew Herron, Richard C. Ewers
  • Patent number: 10675114
    Abstract: A surgical sheath system for performing surgery of the head includes a flexible tubular braided sheath which is radially expandable. An expansion tube is insertable into the sheath to radially expand the sheath. A locking assembly includes tube position shift means, such as a cap threaded onto a flange, with a washer contained in a recess in the flange, the recess having an inside diameter greater than an outside diameter of the washer. When unlocked, the expansion tube can be shift horizontally, to access a different area of a surgical site, without moving the locking assembly. A stylet stabilizing assembly may be pivotally or releasably attached to the locking assembly.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: June 9, 2020
    Assignee: SPIWay LLC
    Inventors: Richard C. Ewers, Eugene Chen, Stephanie Frimond
  • Patent number: 10433850
    Abstract: A ligature delivery device includes a control member, an elongated shaft, and an end effector attached to the distal end of the elongated shaft. An activation mechanism provides an user-operable connection between the control member and the end effector. In several embodiments, the end effector includes a reverse grasping mechanism. Several embodiments of ligature devices are adapted to be deployed endoscopically and/or translumenally using the reverse-grasping delivery device.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: October 8, 2019
    Assignee: USGI Medical, Inc.
    Inventors: Richard C. Ewers, Christopher James Earley, Barton P. Bandy, Eugene G. Chen, Haio Fauser
  • Publication number: 20190274525
    Abstract: A surgical sheath for use in endoscopic trans-nasal or intra-ocular surgery is made of a braid material. The sheath may be manufactured by placing a length of braided tube material over a mandrel. The braid material is conformed to the shape of the mandrel and is then heat set. An atraumatic end may be made by folding or rolling one or both ends of the sheath. A coating may also optionally be applied to the braid material. The sheath reduces collateral trauma to the tissues in the surgical pathway.
    Type: Application
    Filed: May 30, 2019
    Publication date: September 12, 2019
    Inventors: Eugene Chen, Richard C. Ewers, Cang Lam, Stephanie Frimond
  • Publication number: 20190104929
    Abstract: A surgical sheath adapted for use in the nasal cavity has an elongated hollow body made of a braided material having interstitial spaces with a dimension of 0.25 mm to 1.50 mm. The interstitial spaces filled with a filling material, such as silicone. The sheath has a low profile configuration during placement into the naris, and may be stretched into an expanded configuration. In methods of placing the sheath in the naris, the sheath is folded and then pulled into the naris using a surgical tool.
    Type: Application
    Filed: December 6, 2018
    Publication date: April 11, 2019
    Inventors: Eugene Chen, Richard C. Ewers, Cang Lam, Stephanie Frimond
  • 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: 20180256146
    Abstract: A surgical access sleeve may include a tubular braid with a closed end pocket at the distal end. The tubular braid is compressible, or it can be shortened, in a longitudinal direction, to force the tubular braid to expand radially outward. A surgical method includes inserting a substantially un-compressed access sleeve partially into an incision or opening in a patient, with the access sleeve comprising a tubular braid. The access sleeve is compressed in a longitudinal direction to force the access sleeve to expand radially outward to dilate or maintain the opening.
    Type: Application
    Filed: March 12, 2018
    Publication date: September 13, 2018
    Inventors: Eugene Chen, Stephanie Frimond, Richard C. Ewers
  • Patent number: 10045871
    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: Grant
    Filed: November 11, 2016
    Date of Patent: August 14, 2018
    Assignee: USGI Medical, Inc.
    Inventors: Vahid Saadat, Richard C. Ewers, Cang C. Lam, Robert A. Vaughan, Chris Rothe, Kenneth H. Michlitsch
  • Publication number: 20180153375
    Abstract: A direct vision cryosurgical and methods of use are described herein where the device may generally comprise an elongated rigid structure with a distal end, a proximal end, and a central lumen. The distal end may comprise a non-coring optically transparent needle tip with at least one lateral fenestration in communication with the central lumen. The distal end may also house at least one imaging device configured for distal imaging. A proximal end of the device may comprise a handle with a means for connecting the imaging device(s) to an imaging display(s), and a means for accessing bodily tissue in the vicinity of the distal end with a cryo-ablation probe through the central lumen and the lateral fenestration(s) for diagnostic or therapeutic purposes.
    Type: Application
    Filed: November 6, 2017
    Publication date: June 7, 2018
    Inventors: Vahid Saadat, Matthew Herron, Richard C. Ewers
  • Publication number: 20180085182
    Abstract: A surgical sheath system for performing surgery of the head includes a flexible tubular braided sheath which is radially expandable. An expansion tube is insertable into the sheath to radially expand the sheath. A locking assembly includes tube position shift means, such as a cap threaded onto a flange, with a washer contained in a recess in the flange, the recess having an inside diameter greater than an outside diameter of the washer. When unlocked, the expansion tube can be shift horizontally, to access a different area of a surgical site, without moving the locking assembly. A stylet stabilizing assembly may be pivotally or releasably attached to the locking assembly.
    Type: Application
    Filed: September 26, 2017
    Publication date: March 29, 2018
    Inventors: Richard C. Ewers, Eugene Chen, Stephanie Frimond
  • Publication number: 20170347865
    Abstract: A surgical sheath for use in endoscopic trans-nasal or intra-ocular surgery is made of a braid material. The sheath may be manufactured by placing a length of braided tube material over a mandrel. The braid material is conformed to the shape of the mandrel and is then heat set. An atraumatic end may be made by folding or rolling one or both ends of the sheath. A coating may also optionally be applied to the braid material. The sheath reduces collateral trauma to the tissues in the surgical pathway.
    Type: Application
    Filed: August 18, 2017
    Publication date: December 7, 2017
    Inventors: Eugene Chen, Richard C. Ewers, Cang Lam, Stephanie Frimond
  • Publication number: 20170143524
    Abstract: Devices and methods for forming and securing tissue folds and elongated invaginations in stomach tissue are used as a treatment for obesity. In a first embodiment, a plurality of tissue folds is formed in the fundus region of the stomach. In methods for surgically altering stomach tissue to change gastric emptying, plications are formed in the stomach to speed up or slow down gastric emptying, depending on the number and locations of applications used.
    Type: Application
    Filed: October 26, 2016
    Publication date: May 25, 2017
    Inventors: John A. Cox, Scott Moonly, Richard C. Ewers
  • Patent number: 9585651
    Abstract: Methods and apparatus for securing and deploying tissue anchors are described herein. A tissue manipulation assembly is pivotably coupled to the distal end of a tubular member. A reconfigurable launch tube is also pivotably coupled to the tissue manipulation assembly, which may be advanced through a shape-lockable endoscopic device, a conventional endoscope, or directly by itself into a patient. A second tool can be used in combination with the tissue manipulation assembly to engage tissue and manipulate the tissue in conjunction with the tissue manipulation assembly. A deployment assembly is provided for securing engaged tissue via one or more tissue anchors, the deployment assembly also being configured to disengage the anchors endoluminally or laparoscopically.
    Type: Grant
    Filed: May 26, 2005
    Date of Patent: March 7, 2017
    Assignee: USGI Medical, Inc.
    Inventors: Cang C. Lam, Richard C. Ewers, Robert A. Vaughan, Vahid Saadat
  • Publication number: 20170056228
    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: November 11, 2016
    Publication date: March 2, 2017
    Inventors: Vahid Saadat, Richard C. Ewers, Cang C. Lam, Robert A. Vaughan, Chris Rothe, Kenneth H. Michlitsch
  • Patent number: 9572565
    Abstract: Tissue anchors include a flat, broad, and large contact surface for engagement with a portion of tissue. Several embodiments of composite tissue anchors include a support element and an overlay element. Tissue anchor assemblies include two or more tissue anchors, a connector, and a cinching mechanism. In some embodiments, the tissue anchors included in the tissue anchor assemblies are of different types, sizes, and/or shapes.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: February 21, 2017
    Assignee: USGI Medical, Inc.
    Inventors: Richard C. Ewers, Tracy D. Maahs, Shirley Vong