Patents by Inventor Arnold M. Escano
Arnold M. Escano 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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Patent number: 10405919Abstract: Described here are systems and methods for affecting tissue within a body to form a lesion. Some systems comprise tissue-affecting devices, devices that guide the advancement of the tissue-affecting elements to a target tissue region, devices that locate and secure tissue, and devices that help position the tissue-affecting devices along the target tissue. The methods described here comprise advancing a first tissue-affecting device to a first surface of a target tissue, advancing a second tissue-affecting device to a second surface of the target tissue, and positioning the first and second devices so that a lesion may be formed in the tissue between them. In some variations, the devices, systems, and methods described here are used to treat atrial fibrillation by ablating fibrillating tissue from an endocardial surface and an epicardial surface of a heart. Methods of closing, occluding, and/or removing the left atrial appendage are also described.Type: GrantFiled: July 14, 2015Date of Patent: September 10, 2019Assignee: SentreHEART, Inc.Inventors: Gregory W. Fung, Russell A. Seiber, Robert Strasser, Arnold M. Escano, Ryan Douglas Helmuth
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Publication number: 20190262067Abstract: Described here are devices, systems, and methods for closing the left atrial appendage. The methods described here utilize a closure device for closing the left atrial appendage and guides or expandable elements with ablation or abrading elements to ablate or abrade the left atrial appendage. In general, these methods include positioning a balloon at least partially within the atrial appendage, positioning a closure assembly of a closure device around an exterior of the atrial appendage, inflating the balloon, partially closing the closure assembly, ablating the interior tissue of the atrial appendage with the inflated balloon, removing the balloon from the atrial appendage, and closing the atrial appendage with the closure assembly.Type: ApplicationFiled: February 28, 2019Publication date: August 29, 2019Inventors: Gregory W. FUNG, Randall J. LEE, Russell PONG, Robert L. CLARK, III, Arnold M. ESCANO
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Publication number: 20190125350Abstract: Described herein are tissue closure devices and methods for ligating a target tissue, such as the left atrial appendage. The tissue closure devices may have an elongate body, a snare at least partially housed within the elongate body, a suture at least partially housed within the elongate body, and a tightening element coupled to the suture. The suture may have a suture loop, and the tightening element may be configured to decrease the size of the suture loop when the area of a tissue within the suture loop decreases.Type: ApplicationFiled: October 2, 2018Publication date: May 2, 2019Inventors: Gregory W. FUNG, Alan L. BRADLEY, Russell PONG, Robert L. CLARK, III, Arnold M. ESCANO
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Patent number: 10258408Abstract: Described here are devices, systems, and methods for closing the left atrial appendage. The methods described here utilize a closure device for closing the left atrial appendage and guides or expandable elements with ablation or abrading elements to ablate or abrade the left atrial appendage. In general, these methods include positioning a balloon at least partially within the atrial appendage, positioning a closure assembly of a closure device around an exterior of the atrial appendage, inflating the balloon, partially closing the closure assembly, ablating the interior tissue of the atrial appendage with the inflated balloon, removing the balloon from the atrial appendage, and closing the atrial appendage with the closure assembly.Type: GrantFiled: October 31, 2014Date of Patent: April 16, 2019Assignee: SentreHEART, Inc.Inventors: Gregory W. Fung, Randall J. Lee, Russell Pong, Robert L. Clark, III, Arnold M. Escano
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Patent number: 10251650Abstract: Described here are closure devices and methods for ligating tissue, such as the left atrial appendage. The closure devices may comprise a snare loop assembly comprising a snare and a suture loop releasably attached thereto. The snare may be releasable from an elongate body of the closure device. In some instances, the closure device may comprise one or more markers to allow a user to determine whether the snare loop assembly is twisted.Type: GrantFiled: July 6, 2016Date of Patent: April 9, 2019Assignee: SentreHEART, Inc.Inventors: Robert L. Clark, III, Gregory W. Fung, Russell Pong, Arnold M. Escano, Greg Liu
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Patent number: 10130369Abstract: Described herein are tissue closure devices and methods for ligating a target tissue, such as the left atrial appendage. The tissue closure device may have an elongate body, a snare at least partially housed within the elongate body, a suture at least partially housed within the elongate body, and a tightening element coupled to the suture. The suture may have a suture loop, and the tightening element may be configured to decrease the size of the suture loop when the area of a tissue within the suture loop decreases.Type: GrantFiled: March 24, 2016Date of Patent: November 20, 2018Assignee: SentreHEART, Inc.Inventors: Gregory W. Fung, Alan L. Bradley, Russell Pong, Robert L. Clark, III, Arnold M. Escano
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Publication number: 20180085130Abstract: Closure devices and methods for ligating tissue, such as the left atrial appendage, generally, include an elongate body having a first lumen therethrough, a snare loop assembly, a vacuum tube, and an imaging device. The snare loop assembly may include a snare and a suture loop releasably coupled to the snare and may at least partially extend from a distal end of the elongate body. The vacuum tube may be slidably positioned within the first lumen to extend through the snare loop assembly. The imaging device may be disposed within the lumen of the vacuum tube.Type: ApplicationFiled: September 22, 2017Publication date: March 29, 2018Inventors: Gregory W. FUNG, Robert L. CLARK, III, Russell A. SEIBER, Russell PONG, Arnold M. ESCANO
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Publication number: 20170258513Abstract: A surgical apparatus and methods for severing and welding tissue, in particular blood vessels. The apparatus includes an elongated shaft having a pair of relatively movable jaws at a distal end thereof. A first heating element on one of the jaws is adapted to heat up to a first temperature and form a welded region within the tissue, while a second heating element on one of the jaws is adapted to heat up to a second temperature and sever the tissue within the welded region. The first and second heating elements may be provided on the same or opposite jaws. A control handle provided on the proximal end of the elongated shaft includes controls for opening and closing the jaws, and may include an actuator for sending current through the first and second heating elements. The first and second heating elements may be electrically connected in series, and the first heating element may be bifurcated such that it conducts about one half of the current as the second heating element.Type: ApplicationFiled: April 7, 2017Publication date: September 14, 2017Applicant: MAQUET CARDIOVASCULAR LLCInventors: Liming LAU, Arnold M. ESCANO, Jerry JARRARD, Samuel HO, Ryan C. ABBOTT, Arthur M. LIN, Jesse McQuiston, Kenny L. Dang
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Publication number: 20170209141Abstract: Described here are closure devices and methods for ligating tissue, such as the left atrial appendage, and tensioning devices and mechanism for actuating these devices. The tensioning mechanisms and devices may allow a user to apply one or more predetermined forces to a suture or other portion of the closure devices.Type: ApplicationFiled: November 18, 2016Publication date: July 27, 2017Inventors: Gregory W. FUNG, Ryan Douglas HELMUTH, Arnold M. ESCANO, Russell A. SEIBER, Robert L. CLARK, III
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Publication number: 20170156782Abstract: A surgical apparatus and methods for severing and welding tissue, in particular blood vessels. The apparatus includes an elongated shaft having a pair of relatively movable jaws at a distal end thereof. A first heating element on one of the jaws is adapted to heat up to a first temperature and form a welded region within the tissue, while a second heating element on one of the jaws is adapted to heat up to a second temperature and sever the tissue within the welded region. The first and second heating elements may be provided on the same or opposite jaws. A control handle provided on the proximal end of the elongated shaft includes controls for opening and closing the jaws, and may include an actuator for sending current through the first and second heating elements. The first and second heating elements may be electrically connected in series, and the first heating element may be bifurcated such that it conducts about one half of the current as the second heating element.Type: ApplicationFiled: February 14, 2017Publication date: June 8, 2017Applicant: MAQUET Cardiovascular LLCInventors: Liming LAU, Arnold M. ESCANO, Jerry JARRARD, Samuel HO, Ryan C. ABBOTT, Arthur M. LIN, Jesse MCQUISTON
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Patent number: 9636163Abstract: A surgical apparatus and methods for severing and welding tissue, in particular blood vessels. The apparatus includes an elongated shaft having a pair of relatively movable jaws at a distal end thereof. A first heating element on one of the jaws is adapted to heat up to a first temperature and form a welded region within the tissue, while a second heating element on one of the jaws is adapted to heat up to a second temperature and sever the tissue within the welded region. The first and second heating elements may be provided on the same or opposite jaws. A control handle provided on the proximal end of the elongated shaft includes controls for opening and closing the jaws, and may include an actuator for sending current through the first and second heating elements. The first and second heating elements may be electrically connected in series, and the first heating element may be bifurcated such that it conducts about one half of the current as the second heating element.Type: GrantFiled: November 24, 2014Date of Patent: May 2, 2017Assignee: MAQUET CARDIOVASCULAR LLCInventors: Liming Lau, Arnold M. Escano, Jerry Jarrard, Samuel Ho, Ryan C. Abbott, Arthur M. Lin, Jesse McQuiston, Kenny L. Dang
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Patent number: 9610113Abstract: A surgical apparatus and methods for severing and welding tissue, in particular blood vessels. The apparatus includes an elongated shaft having a pair of relatively movable jaws at a distal end thereof. A first heating element on one of the jaws is adapted to heat up to a first temperature and form a welded region within the tissue, while a second heating element on one of the jaws is adapted to heat up to a second temperature and sever the tissue within the welded region. The first and second heating elements may be provided on the same or opposite jaws. A control handle provided on the proximal end of the elongated shaft includes controls for opening and closing the jaws, and may include an actuator for sending current through the first and second heating elements. The first and second heating elements may be electrically connected in series, and the first heating element may be bifurcated such that it conducts about one half of the current as the second heating element.Type: GrantFiled: February 23, 2015Date of Patent: April 4, 2017Assignee: MAQUET CARDIOVASCULAR LLCInventors: Liming Lau, Arnold M. Escano, Jerry Jarrard, Samuel Ho, Ryan C. Abbott, Arthur M. Lin, Jesse McQuiston, Peter L. Callas, Geoffrey H. Willis, Michael C. Stewart, Kimberly D. Otto, Joseph N. Lamberti, Kenny L. Dang
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Patent number: 9498206Abstract: Described here are closure devices and methods for ligating tissue, such as the left atrial appendage, and tensioning devices and mechanism for actuating these devices. The tensioning mechanisms and devices may allow a user to apply one or more predetermined forces to a suture or other portion of the closure devices. The closure devices may comprise a suture loop releasably attached to a snare loop assembly, and a tensioning mechanism or device may be configured to tighten the suture loop and/or release the suture loop from the snare loop assembly.Type: GrantFiled: June 7, 2012Date of Patent: November 22, 2016Assignee: SentreHEART, INC.Inventors: Gregory W. Fung, Ryan Douglas Helmuth, Arnold M. Escano, Russell A. Seiber, Robert L. Clark, III
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Publication number: 20160310145Abstract: Described here are closure devices and methods for ligating tissue, such as the left atrial appendage. The closure devices may comprise a snare loop assembly comprising a snare and a suture loop releasably attached thereto. The snare may be releasable from an elongate body of the closure device. In some instances, the closure device may comprise one or more markers to allow a user to determine whether the snare loop assembly is twisted.Type: ApplicationFiled: July 6, 2016Publication date: October 27, 2016Inventors: Robert L. CLARK, III, Gregory W. FUNG, Russell PONG, Arnold M. ESCANO, Greg LIU
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Publication number: 20160302793Abstract: Described herein are tissue closure devices and methods for ligating a target tissue, such as the left atrial appendage. The tissue closure device may have an elongate body, a snare at least partially housed within the elongate body, a suture at least partially housed within the elongate body, and a tightening element coupled to the suture. The suture may have a suture loop, and the tightening element may be configured to decrease the size of the suture loop when the area of a tissue within the suture loop decreases.Type: ApplicationFiled: March 24, 2016Publication date: October 20, 2016Inventors: Gregory W. FUNG, Alan L. BRADLEY, Russell PONG, Robert L. CLARK, III, Arnold M. ESCANO
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Patent number: 9408608Abstract: Described here are closure devices and methods for ligating tissue, such as the left atrial appendage. The closure devices may comprise a snare loop assembly comprising a snare and a suture loop releasably attached thereto. The snare may be releasable from an elongate body of the closure device. In some instances, the closure device may comprise one or more markers to allow a user to determine whether the snare loop assembly is twisted.Type: GrantFiled: March 3, 2014Date of Patent: August 9, 2016Assignee: SentreHEART, Inc.Inventors: Robert L. Clark, III, Gregory W. Fung, Russell Pong, Arnold M. Escano, Greg Liu
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Patent number: 9339295Abstract: Described here are devices and methods for accessing the pericardial space. The access devices may include a piercing member such as a needle and a proximal shoulder having a contact surface for contacting the pericardium as the piercing member pierces the pericardium. In some instances, the distance between the piercing member and the proximal shoulder may be adjustable.Type: GrantFiled: October 22, 2013Date of Patent: May 17, 2016Assignee: SentreHEART, INC.Inventors: Gregory W. Fung, Arnold M. Escano, Randall J. Lee
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Publication number: 20160120549Abstract: Described here are devices for closing one or more tissues, and handles for controlling these devices. Generally, the devices described here comprise a snare loop assembly, wherein the snare loop assembly comprises a snare and a suture loop, and a handle for controlling the snare loop assembly. In some variations the snare loop assembly may comprise a retention member that may releasably connect the suture loop to the snare. In other variations the devices comprise one or more force-reducing suture locks to help prevent the suture loop from inadvertently disengaging from the snare loop assembly. In still other variations, the excess-suture management features. The handles described here may be configured to remove excess suture from a suture loop, and may also be configured to release the suture loop from the snare loop assembly.Type: ApplicationFiled: October 30, 2015Publication date: May 5, 2016Inventors: Gregory W. FUNG, Russell A. SEIBER, Eduardo SAGER, JR., Gary H. MILLER, Maria GARCIA, Ryan Douglas HELMUTH, Arnold M. ESCANO, Douglas Todd ELLISON, William E. COHN
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Publication number: 20160008061Abstract: Described here are systems and methods for affecting tissue within a body to form a lesion. Some systems comprise tissue-affecting devices, devices that guide the advancement of the tissue-affecting elements to a target tissue region, devices that locate and secure tissue, and devices that help position the tissue-affecting devices along the target tissue. The methods described here comprise advancing a first tissue-affecting device to a first surface of a target tissue, advancing a second tissue-affecting device to a second surface of the target tissue, and positioning the first and second devices so that a lesion may be formed in the tissue between them. In some variations, the devices, systems, and methods described here are used to treat atrial fibrillation by ablating fibrillating tissue from an endocardial surface and an epicardial surface of a heart. Methods of closing, occluding, and/or removing the left atrial appendage are also described.Type: ApplicationFiled: July 14, 2015Publication date: January 14, 2016Inventors: Gregory W. FUNG, Russell A. SEIBER, Robert STRASSER, Arnold M. ESCANO, Ryan Douglas HELMUTH
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Patent number: 9198664Abstract: Described here are devices for closing one or more tissues, and handles for controlling these devices. Generally, the devices described here comprise a snare loop assembly, wherein the snare loop assembly comprises a snare and a suture loop, and a handle for controlling the snare loop assembly. In some variations the snare loop assembly may comprise a retention member that may releasably connect the suture loop to the snare. In other variations the devices comprise one or more force-reducing suture locks to help prevent the suture loop from inadvertently disengaging from the snare loop assembly. In still other variations, the excess-suture management features. The handles described here may be configured to remove excess suture from a suture loop, and may also be configured to release the suture loop from the snare loop assembly.Type: GrantFiled: April 1, 2010Date of Patent: December 1, 2015Assignee: SentreHEART, Inc.Inventors: Gregory W. Fung, Russell A. Seiber, Eduardo Sager, Gary H. Miller, Maria Garcia, Ryan Douglas Helmuth, Arnold M. Escano, Douglas Todd Ellison, William E. Cohn