Patents by Inventor Greg Alan Walters
Greg Alan Walters 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: 20260115412Abstract: The present disclosure is an assembly and related method that allows laceration of a valve leaflet.Type: ApplicationFiled: December 22, 2025Publication date: April 30, 2026Applicant: Excision Medical, Inc.Inventors: David Alexander WOOD, Janarthanan SATHANANTHAN, Greg Alan WALTERS, Philip J. HAARSTAD
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Publication number: 20250375194Abstract: The present technology relates generally to devices and methods for closing percutaneous punctures, and more particularly to a multi-lumen tamper for such a device. A vascular closure device for sealing a percutaneous puncture in a wall of a body passageway is disclosed, the vascular closure device including a plug configured to engage a surface of the puncture; a suture configured coupled to the plug; a locking member configured to engage the plug; and a tamper comprising a first lumen and a second lumen.Type: ApplicationFiled: March 24, 2025Publication date: December 11, 2025Applicant: Teleflex Life Sciences LLCInventors: Greg Alan Walters, Samuel Nardone
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Publication number: 20250204980Abstract: The present disclosure describes a surgical systems for traversing and lacerating a valve leaflet.Type: ApplicationFiled: December 20, 2024Publication date: June 26, 2025Applicant: Excision MedicalInventors: Greg Alan Walters, Chad J. Smith, Mike A. Dotsey, Bryan Fitzgerald Allard, Francois Jouin, Shawn Sabu Cherian, Alison Mikayla Kane, Tessa Mazzerella
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Patent number: 12285160Abstract: The present technology relates generally to devices and methods for closing percutaneous punctures, and more particularly to a multi-lumen tamper for such a device. A vascular closure device for sealing a percutaneous puncture in a wall of a body passageway is disclosed, the vascular closure device including a plug configured to engage a surface of the puncture; a suture configured coupled to the plug; a locking member configured to engage the plug; and a tamper comprising a first lumen and a second lumen.Type: GrantFiled: September 16, 2021Date of Patent: April 29, 2025Assignee: Teleflex Life Sciences LLCInventors: Greg Alan Walters, Samuel Nardone
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Publication number: 20240180583Abstract: The present disclosure describes an excision catheter system including a cutting catheter and extraction catheter. The cutting catheter is configured to pierce and/or cut a leaflet and the extraction catheter is configured to hold and/or remove the excised leaflet portion.Type: ApplicationFiled: April 7, 2022Publication date: June 6, 2024Applicant: Excision Medical, Inc.Inventors: David Alexander WOOD, Janarthanan SATHANANTHAN, Michael Austin DOTSEY, Francois Louis JOUIN, Jason Donald KEISER, Greg Alan WALTERS
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Publication number: 20240122694Abstract: The present disclosure describes a surgical system for a valve in an aorta. The surgical system is configured to serve as a temporary valve and/or filter to facilitate maintenance of proper blood flow while also capturing debris of an excised leaflet as needed.Type: ApplicationFiled: October 12, 2023Publication date: April 18, 2024Applicant: Excision Medical, Inc.Inventors: Greg Alan WALTERS, Chad J. SMITH
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Publication number: 20230381490Abstract: The present disclosure describes a surgical system for a valve in an aorta. The surgical system is configured to serve as a temporary valve and/or filter to facilitate maintenance of proper blood flow while also capturing debris of an excised leaflet as needed.Type: ApplicationFiled: May 26, 2023Publication date: November 30, 2023Applicant: Excision Medical, Inc.Inventors: Greg Alan WALTERS, Francois JOUIN, Alison Mikayla KANE, Michael A. DOTSEY, Chad J. SMITH, Jason KEISER
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Publication number: 20230301784Abstract: The present disclosure describes a surgical system for an aortic or mitral valve in a heart. The surgical system is configured to pierce, seize, and/or cut a leaflet, and/or facilitate removal of an excised portion of a leaflet.Type: ApplicationFiled: March 28, 2023Publication date: September 28, 2023Applicant: Excision Medical, Inc.Inventors: Greg Alan WALTERS, Francois JOUIN, Michael A. DOTSEY, Shawn Sabu CHERIAN, Alison Mikayla KANE, Janarthanan SATHANANTHAN, Chad J. SMITH
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Publication number: 20230000609Abstract: The present disclosure is a catheter assembly and related method that allows laceration of either a surgical valve or transcatheter valve leaflet to facilitate flow to the coronary arteries during valve in valve interventions.Type: ApplicationFiled: December 5, 2020Publication date: January 5, 2023Applicant: Excision Medical, Inc.Inventors: David Alexander WOOD, Janarthanan SATHANANTHAN, Greg Alan WALTERS, Philip J. HAARSTAD
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Publication number: 20220387201Abstract: An embodiment of the disclosure is a catheter system configured to be attached to an implanted medical device, such as an implanted valve. The catheter includes an engagement assembly having an elongated member that extends along a central axis, and an engagement member coupled to the elongated member. The engagement assembly has a retracted configuration, where the engagement member is disposed within the channel of the catheter, and an engagement configuration, where the engagement member is disposed outside of the channel and extends outwardly along a direction that is angled with respect to the central axis.Type: ApplicationFiled: November 19, 2020Publication date: December 8, 2022Applicant: Excision Medical, Inc.Inventors: David Alexander WOOD, Janarthanan SATHANANTHAN, Greg Alan WALTERS, Philip J. HAARSTAD, Ramji IYER
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Publication number: 20220000463Abstract: The present technology relates generally to devices and methods for closing percutaneous punctures, and more particularly to a multi-lumen tamper for such a device. A vascular closure device for sealing a percutaneous puncture in a wall of a body passageway is disclosed, the vascular closure device including a plug configured to engage a surface of the puncture; a suture configured coupled to the plug; a locking member configured to engage the plug; and a tamper comprising a first lumen and a second lumen.Type: ApplicationFiled: September 16, 2021Publication date: January 6, 2022Applicant: Arrow International LLCInventors: Greg Alan Walters, Samuel Nardone
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Patent number: 11123053Abstract: The present technology relates generally to a method and device for closing percutaneous punctures, and more particularly to a multi-lumen tamper for such a device. A closure device for sealing a percutaneous puncture in a wall of a body passageway is disclosed, the closure device including a plug configured to engage a surface of the puncture; a toggle configured to engage an internal surface of the body passageway; an elongate filament configured to associate the plug with the toggle; a locking member configured to engage the plug; and a tamper comprising at least two lumens, wherein a first lumen of the at least two lumens is configured to deliver a pharmaceutical agent to the plug.Type: GrantFiled: July 25, 2019Date of Patent: September 21, 2021Assignee: Arrow International LLCInventors: Greg Alan Walters, Samuel Nardone
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Patent number: 10835224Abstract: A deployment instrument for deploying a closure device for sealing a percutaneous puncture in a wall of a body passageway, the deployment instrument including a carrier assembly, wherein the carrier assembly is configured to hold the closure device in a pre-deployment state, and a tensioner assembly, wherein the filament is fixedly attached to the tensioner assembly, wherein the deployment instrument is configured to increase the tension in the filament upon linear movement of the deployment instrument away from the wall of the body passageway when the closure device is anchored to the wall via the anchor such that the tension is gradually increased as the deployment instrument is moved between a first linear distance and a second linear distance greater than the first linear distance from the wall of the body passageway.Type: GrantFiled: November 15, 2017Date of Patent: November 17, 2020Assignee: Arrow International, Inc.Inventor: Greg Alan Walters
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Publication number: 20190343498Abstract: The present technology relates generally to a method and device for closing percutaneous punctures, and more particularly to a multi-lumen tamper for such a device. A closure device for sealing a percutaneous puncture in a wall of a body passageway is disclosed, the closure device including a plug configured to engage a surface of the puncture; a toggle configured to engage an internal surface of the body passageway; an elongate filament configured to associate the plug with the toggle; a locking member configured to engage the plug; and a tamper comprising at least two lumens, wherein a first lumen of the at least two lumens is configured to deliver a pharmaceutical agent to the plug.Type: ApplicationFiled: July 25, 2019Publication date: November 14, 2019Applicant: Essential Medical, Inc.Inventors: Greg Alan WALTERS, Samuel NARDONE
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Patent number: 10390810Abstract: The present technology relates generally to a method and device for closing percutaneous punctures, and more particularly to a multi-lumen tamper for such a device. A closure device for sealing a percutaneous puncture in a wall of a body passageway is disclosed, the closure device including a plug configured to engage a surface of the puncture; a toggle configured to engage an internal surface of the body passageway; an elongate filament configured to associate the plug with the toggle; a locking member configured to engage the plug; and a tamper comprising at least two lumens, wherein a first lumen of the at least two lumens is configured to deliver a pharmaceutical agent to the plug.Type: GrantFiled: August 11, 2017Date of Patent: August 27, 2019Assignee: Essential Medical, Inc.Inventors: Greg Alan Walters, Samuel Nardone
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Publication number: 20180070933Abstract: A deployment instrument for deploying a closure device for sealing a percutaneous puncture in a wall of a body passageway, the deployment instrument including a carrier assembly, wherein the carrier assembly is configured to hold the closure device in a pre-deployment state, and a tensioner assembly, wherein the filament is fixedly attached to the tensioner assembly, wherein the deployment instrument is configured to increase the tension in the filament upon linear movement of the deployment instrument away from the wall of the body passageway when the closure device is anchored to the wall via the anchor such that the tension is gradually increased as the deployment instrument is moved between a first linear distance and a second linear distance greater than the first linear distance from the wall of the body passageway.Type: ApplicationFiled: November 15, 2017Publication date: March 15, 2018Applicant: Essential Medical, Inc.Inventor: Greg Alan Walters
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Patent number: 9839417Abstract: A deployment instrument for deploying a closure device for sealing a percutaneous puncture in a wall of a body passageway, the deployment instrument including a carrier assembly, wherein the carrier assembly is configured to hold the closure device in a pre-deployment state, and a tensioner assembly, wherein the filament is fixedly attached to the tensioner assembly, wherein the deployment instrument is configured to increase the tension in the filament upon linear movement of the deployment instrument away from the wall of the body passageway when the closure device is anchored to the wall via the anchor such that the tension is gradually increased as the deployment instrument is moved between a first linear distance and a second linear distance greater than the first linear distance from the wall of the body passageway.Type: GrantFiled: September 19, 2014Date of Patent: December 12, 2017Assignee: Essential Medical, Inc.Inventor: Greg Alan Walters
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Publication number: 20170333015Abstract: The present technology relates generally to a method and device for closing percutaneous punctures, and more particularly to a multi-lumen tamper for such a device. A closure device for sealing a percutaneous puncture in a wall of a body passageway is disclosed, the closure device including a plug configured to engage a surface of the puncture; a toggle configured to engage an internal surface of the body passageway; an elongate filament configured to associate the plug with the toggle; a locking member configured to engage the plug; and a tamper comprising at least two lumens, wherein a first lumen of the at least two lumens is configured to deliver a pharmaceutical agent to the plug.Type: ApplicationFiled: August 11, 2017Publication date: November 23, 2017Inventors: Greg Alan Walters, Samuel Nardone
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Patent number: 9757104Abstract: The present technology relates generally to a method and device for closing percutaneous punctures, and more particularly to a multi-lumen tamper for such a device. A closure device for sealing a percutaneous puncture in a wall of a body passageway is disclosed, the closure device including a plug configured to engage a surface of the puncture; a toggle configured to engage an internal surface of the body passageway; an elongate filament configured to associate the plug with the toggle; a locking member configured to engage the plug; and a tamper comprising at least two lumens, wherein a first lumen of the at least two lumens is configured to deliver a pharmaceutical agent to the plug.Type: GrantFiled: July 19, 2013Date of Patent: September 12, 2017Assignee: Essential Medical, Inc.Inventors: Greg Alan Walters, Samuel Nardone
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Publication number: 20150068009Abstract: A deployment instrument for deploying a closure device for sealing a percutaneous puncture in a wall of a body passageway, the deployment instrument including a carrier assembly, wherein the carrier assembly is configured to hold the closure device in a pre-deployment state, and a tensioner assembly, wherein the filament is fixedly attached to the tensioner assembly, wherein the deployment instrument is configured to increase the tension in the filament upon linear movement of the deployment instrument away from the wall of the body passageway when the closure device is anchored to the wall via the anchor such that the tension is gradually increased as the deployment instrument is moved between a first linear distance and a second linear distance greater than the first linear distance from the wall of the body passageway.Type: ApplicationFiled: September 19, 2014Publication date: March 12, 2015Inventor: Greg Alan Walters