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).
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Publication number: 20230346206Abstract: 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: ApplicationFiled: July 10, 2023Publication date: November 2, 2023Inventors: Eugene Chen, Richard C. Ewers, Cang Lam, Stephanie Frimond
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Patent number: 11737659Abstract: 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: GrantFiled: January 19, 2021Date of Patent: August 29, 2023Assignee: SPIWay LLCInventors: Eugene Chen, Richard C. Ewers, Cang Lam, Stephanie Frimond
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Publication number: 20230157522Abstract: 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: ApplicationFiled: January 11, 2023Publication date: May 25, 2023Inventors: Vahid Saadat, Matthew Herron, Richard C. Ewers
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Patent number: 11583313Abstract: In a surgical method, an access sheath is provided by a tube of a braided material. A first end of the sheath may be folded. The first end, folded or unfolded, is grasped with a distal end of a tool, which is then inserted into the nose of a patient. Advancing the tool pulls the distal end of the sheath into the nose of the patient. The sheath is then released from the tool and the tool is withdrawn. A portion of the sheath may be optionally cut off to shorten the sheath to a desired length. Typically the sheath has a total length of 70 to 180 mm and an outside diameter of 12 to 50 mm. The sheath may have a constant outside diameter along its length. The sheath may comprise silicone on the braided material.Type: GrantFiled: November 26, 2019Date of Patent: February 21, 2023Assignee: SPIWAY LLCInventors: Eugene Chen, Richard C. Ewers, Cang Lam, Stephanie Frimond
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Patent number: 11576559Abstract: 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: GrantFiled: September 23, 2020Date of Patent: February 14, 2023Assignee: Arrinex, Inc.Inventors: Vahid Saadat, Matthew Herron, Richard C. Ewers
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Patent number: 11045341Abstract: 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: GrantFiled: July 24, 2018Date of Patent: June 29, 2021Assignee: USGI MEDICAL, INC.Inventors: Vahid Saadat, Richard C. Ewers, Cang C. Lam, Robert A. Vaughan, Chris Rothe, Kenneth H. Michlitsch
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Patent number: 11039735Abstract: 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: GrantFiled: May 30, 2019Date of Patent: June 22, 2021Assignee: SPIWAY LLCInventors: Eugene Chen, Richard C. Ewers, Cang Lam, Stephanie Frimond
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Publication number: 20210137364Abstract: 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: ApplicationFiled: January 19, 2021Publication date: May 13, 2021Inventors: Eugene Chen, Richard C. Ewers, Cang Lam, Stephanie Frimond
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Patent number: 10986984Abstract: 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: GrantFiled: December 6, 2018Date of Patent: April 27, 2021Assignee: SPIWAY LLCInventors: Eugene Chen, Richard C. Ewers, Cang Lam, Stephanie Frimond
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Publication number: 20210000331Abstract: 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: ApplicationFiled: September 23, 2020Publication date: January 7, 2021Inventors: Vahid Saadat, Matthew Herron, Richard C. Ewers
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Patent number: 10813533Abstract: 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: GrantFiled: November 6, 2017Date of Patent: October 27, 2020Assignee: Arrinex, Inc.Inventors: Vahid Saadat, Matthew Herron, Richard C. Ewers
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Patent number: 10675114Abstract: 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: GrantFiled: September 26, 2017Date of Patent: June 9, 2020Assignee: SPIWay LLCInventors: Richard C. Ewers, Eugene Chen, Stephanie Frimond
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Patent number: 10433850Abstract: 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: GrantFiled: August 2, 2016Date of Patent: October 8, 2019Assignee: USGI Medical, Inc.Inventors: Richard C. Ewers, Christopher James Earley, Barton P. Bandy, Eugene G. Chen, Haio Fauser
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Publication number: 20190274525Abstract: 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: ApplicationFiled: May 30, 2019Publication date: September 12, 2019Inventors: Eugene Chen, Richard C. Ewers, Cang Lam, Stephanie Frimond
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Publication number: 20190104929Abstract: 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: ApplicationFiled: December 6, 2018Publication date: April 11, 2019Inventors: Eugene Chen, Richard C. Ewers, Cang Lam, Stephanie Frimond
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Publication number: 20180344501Abstract: 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: ApplicationFiled: July 24, 2018Publication date: December 6, 2018Inventors: Vahid Saadat, Richard C. Ewers, Cang C. Lam, Robert A. Vaughan, Chris Rothe, Kenneth H. Michlitsch
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Publication number: 20180256146Abstract: 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: ApplicationFiled: March 12, 2018Publication date: September 13, 2018Inventors: Eugene Chen, Stephanie Frimond, Richard C. Ewers
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Patent number: 10045871Abstract: 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: GrantFiled: November 11, 2016Date of Patent: August 14, 2018Assignee: USGI Medical, Inc.Inventors: Vahid Saadat, Richard C. Ewers, Cang C. Lam, Robert A. Vaughan, Chris Rothe, Kenneth H. Michlitsch
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Patent number: D999374Type: GrantFiled: February 9, 2022Date of Patent: September 19, 2023Assignee: SPIWAY LLCInventors: Eugene Chen, Richard C. Ewers, Cang Lam, Stephanie Frimond
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Patent number: D999375Type: GrantFiled: February 9, 2022Date of Patent: September 19, 2023Assignee: SPIWAY LLCInventors: Eugene Chen, Richard C. Ewers, Cang Lam, Stephanie Frimond