Patents by Inventor John Zentgraf
John Zentgraf 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: 11911023Abstract: A device for performing minimally invasive repair of mitral valve leaflets in a beating heart through the delivery and implantation of artificial chordae tendineae includes a handle for positioning the device into a chest cavity of the patient, a capture assembly adapted to capture a valve leaflet between distal an proximal tip portions, a needle adapted to penetrate the valve leaflet, and a capture confirmation system for verifying capture of the valve leaflet between the distal and proximal tip portions.Type: GrantFiled: August 22, 2022Date of Patent: February 27, 2024Assignee: NeoChord, Inc.Inventor: John Zentgraf
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Publication number: 20230157824Abstract: A ringless web is configured to repair heart valve function in patients suffering from degenerative mitral valve regurgitation (DMR) or functional mitral valve regurgitation (FMR). In accordance with various embodiments, a ringless web can be anchored at one or more locations below the valve plane in the ventricle, such as at a papillary muscle, and one or more locations above the valve plane, such as in the valve annulus. A tensioning mechanism connecting the ringless web to one or more of the anchors can be used to adjust a tension of the web such that web restrains the leaflet to prevent prolapse by restricting leaflet motion to the coaptation zone and/or promotes natural coaptation of the valve leaflets.Type: ApplicationFiled: October 31, 2022Publication date: May 25, 2023Inventors: Giovanni Speziali, Dave Blaeser, John Zentgraf
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Publication number: 20230091251Abstract: A device for performing minimally invasive repair of mitral valve leaflets in a beating heart through the delivery and implantation of artificial chordae tendineae includes a handle for positioning the device into a chest cavity of the patient, a capture assembly adapted to capture a valve leaflet between distal an proximal tip portions, a needle adapted to penetrate the valve leaflet, and a capture confirmation system for verifying capture of the valve leaflet between the distal and proximal tip potions.Type: ApplicationFiled: August 22, 2022Publication date: March 23, 2023Inventor: John Zentgraf
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Patent number: 11484409Abstract: A ringless web is configured to repair heart valve function in patients suffering from degenerative mitral valve regurgitation (DMR) or functional mitral valve regurgitation (FMR). In accordance with various embodiments, a ringless web can be anchored at one or more locations below the valve plane in the ventricle, such as at a papillary muscle, and one or more locations above the valve plane, such as in the valve annulus. A tensioning mechanism connecting the ringless web to one or more of the anchors can be used to adjust a tension of the web such that web restrains the leaflet to prevent prolapse by restricting leaflet motion to the coaptation zone and/or promotes natural coaptation of the valve leaflets.Type: GrantFiled: September 3, 2020Date of Patent: November 1, 2022Assignee: NeoChord, Inc.Inventors: Giovanni Speziali, Dave Blaeser, John Zentgraf
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Patent number: 11419602Abstract: A device for performing minimally invasive repair of mitral valve leaflets in a beating heart through the delivery and implantation of artificial chordae tendineae includes a handle for positioning the device into a chest cavity of the patient, a capture assembly adapted to capture a valve leaflet between distal an proximal tip portions, a needle adapted to penetrate the valve leaflet, and a capture confirmation system for verifying capture of the valve leaflet between the distal and proximal tip portions.Type: GrantFiled: November 8, 2019Date of Patent: August 23, 2022Assignee: NeoChord, Inc.Inventor: John Zentgraf
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Publication number: 20210030543Abstract: A ringless web is configured to repair heart valve function in patients suffering from degenerative mitral valve regurgitation (DMR) or functional mitral valve regurgitation (FMR). In accordance with various embodiments, a ringless web can be anchored at one or more locations below the valve plane in the ventricle, such as at a papillary muscle, and one or more locations above the valve plane, such as in the valve annulus. A tensioning mechanism connecting the ringless web to one or more of the anchors can be used to adjust a tension of the web such that web restrains the leaflet to prevent prolapse by restricting leaflet motion to the coaptation zone and/or promotes natural coaptation of the valve leaflets.Type: ApplicationFiled: September 3, 2020Publication date: February 4, 2021Inventors: Giovanni Speziali, Dave Blaeser, John Zentgraf
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Publication number: 20200368022Abstract: A method of repairing a heart valve provides intravascular access for repair of a heart valve through a ventricular trans-septal approach. An external guide catheter can be inserted through a vein of a patient into the right ventricle via the right atrium. An internal guide catheter can be inserted through the external guide and can provide access to the septum for a puncture tool to create an opening through the septum to the left ventricle. The internal guide can then be advanced into the left ventricle and used to guide a deployment catheter that deploys a repair device onto the heart valve.Type: ApplicationFiled: June 18, 2020Publication date: November 26, 2020Inventors: John Zentgraf, David J. Parins, Arun Saini
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Patent number: 10765517Abstract: A ringless web is configured to repair heart valve function in patients suffering from degenerative mitral valve regurgitation (DMR) or functional mitral valve regurgitation (FMR). In accordance with various embodiments, a ringless web can be anchored at one or more locations below the valve plane in the ventricle, such as at a papillary muscle, and one or more locations above the valve plane, such as in the valve annulus. A tensioning mechanism connecting the ringless web to one or more of the anchors can be used to adjust a tension of the web such that web restrains the leaflet to prevent prolapse by restricting leaflet motion to the coaptation zone and/or promotes natural coaptation of the valve leaflets.Type: GrantFiled: October 3, 2016Date of Patent: September 8, 2020Assignee: Neochord, Inc.Inventors: Giovanni Speziali, Dave Blaeser, John Zentgraf
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Patent number: 10695178Abstract: A method of repairing a heart valve provides intravascular access for repair of a heart valve through a ventricular trans-septal approach. An external guide catheter can be inserted through a vein of a patient into the right ventricle via the right atrium. An internal guide catheter can be inserted through the external guide and can provide access to the septum for a puncture tool to create an opening through the septum to the left ventricle. The internal guide can then be advanced into the left ventricle and used to guide a deployment catheter that deploys a repair device onto the heart valve.Type: GrantFiled: November 20, 2015Date of Patent: June 30, 2020Assignee: NeoChord, Inc.Inventors: John Zentgraf, David J. Parins, Arun Saini
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Publication number: 20200179213Abstract: An upper torso augmentation system configured to augment a native strength of an arm of the user by aiding movement of the arm. The upper torso augmentation system including a body chassis configured to be worn around a torso of the user, the shoulder assembly pivotably coupled to the body chassis, and an upper arm assembly pivotably coupled to the shoulder assembly, the upper arm assembly including an assisted force mechanism, wherein an output of the assisted force mechanism is adjustable via a first adjustment mechanism and a second adjustment mechanism thereby enabling the output to approximate a determined minimum assist force required for the user to move their arm through a desired range of motion, so as to minimize any excess torque produced by the upper torso augmentation system.Type: ApplicationFiled: December 12, 2017Publication date: June 11, 2020Inventors: Eli Krumholz, Rob Wudlick, John Zentgraf, Angie Conley, Rob Roberts, Chris Narveson
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Publication number: 20200138430Abstract: A device for performing minimally invasive repair of mitral valve leaflets in a beating heart through the delivery and implantation of artificial chordae tendineae includes a handle for positioning the device into a chest cavity of the patient, a capture assembly adapted to capture a valve leaflet between distal an proximal tip portions, a needle adapted to penetrate the valve leaflet, and a capture confirmation system for verifying capture of the valve leaflet between the distal and proximal tip portions.Type: ApplicationFiled: November 8, 2019Publication date: May 7, 2020Inventor: John Zentgraf
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Publication number: 20200030177Abstract: A motion augmentation system configured to utilize a plurality of cables to augment the user's native strength to aid in the movement of an appendage of a user through a desired range of motion by applying forces between a first body part and an appendage of the user, such that a natural anatomy of the user is at least partially used as a structure to affect movement. The motion augmentation system including a plurality of cables operably coupling a body chassis to at least one sleeve assembly, each of the plurality of cables traversing through a corresponding one of a plurality of embedded lumens within the sleeve assembly and controlled by one or more corresponding cable actuators operably coupled to the body chassis, the corresponding cable actuators configured to selectively apply a force via the plurality of cables between the body chassis in the at least one sleeve assembly.Type: ApplicationFiled: March 8, 2018Publication date: January 30, 2020Inventors: John Zentgraf, James Rohl, Joe Schachtner, Eli Krumholz, Rob Wudlick, Travis Yoch, Chris Narveson, Rob Roberts, Rod Landers, Angie Conley, Brett Neubauer
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Patent number: 10507018Abstract: A device for performing minimally invasive repair of mitral valve leaflets in a beating heart through the delivery and implantation of artificial chordae tendineae includes a handle for positioning the device into a chest cavity of the patient, a capture assembly adapted to capture a valve leaflet between distal an proximal tip portions, a needle adapted to penetrate the valve leaflet, and a capture confirmation system for verifying capture of the valve leaflet between the distal and proximal tip portions.Type: GrantFiled: June 20, 2014Date of Patent: December 17, 2019Assignee: NeoChord, Inc.Inventor: John Zentgraf
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Publication number: 20190133766Abstract: Improved methods and apparatuses for heart valve repair in a beating heart of a patient utilize an exchangeable heart valve repair system. Heart valve repair system can include a port adapted to be seated in the heart wall and an imaging catheter slidable within the port. The imaging catheter can be selectively locked relative to the port for insertion into the heart and unlocked once the port is seated to allow the imaging catheter to move distally towards target tissue. A deployment catheter slidably disposed in the imaging catheter and a repair cartridge slidably disposed in the deployment catheter can be used to capture the target tissue and deploy a repair device into the tissue after proper capture is confirmed. System elements can be selectively removed from and replaced within port to deploy additional repair devices while port maintains a seal while elements are and are not inserted.Type: ApplicationFiled: November 15, 2018Publication date: May 9, 2019Inventors: John Zentgraf, David Joseph Parins, Arun Saini
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Publication number: 20190053902Abstract: Methods and apparatus for heart valve repair utilize a heart valve repair device including a generally annular ring-like structure and a net structure. The ring-like structure is seated in the valve annulus with the net structure extending from the ring-like structure through the coaptation zone between leaflets. The net structure can then be anchored to a heart structure with a suture. Net structure extending between leaflets helps prevent prolapse of leaflets and can aid in coaptation.Type: ApplicationFiled: September 21, 2018Publication date: February 21, 2019Inventors: John Zentgraf, David Joseph Parins, Arun Saini, Giovanni Speziali
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Patent number: 10130474Abstract: Improved methods and apparatuses for heart valve repair in a beating heart of a patient utilize an exchangeable heart valve repair system. Heart valve repair system can include a port adapted to be seated in the heart wall and a catheter slidable within the port. The catheter can be selectively locked relative to the port for insertion into the heart and unlocked once the port is seated to allow the catheter to move distally towards target tissue. System elements can be selectively removed from and replaced within port to deploy repair devices while port maintains a seal while elements are and are not inserted.Type: GrantFiled: May 8, 2015Date of Patent: November 20, 2018Assignee: NeoChord, Inc.Inventors: John Zentgraf, David Joseph Parins, Arun Saini
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Publication number: 20180289483Abstract: A ringless web is configured to repair heart valve function in patients suffering from degenerative mitral valve regurgitation (DMR) or functional mitral valve regurgitation (FMR). In accordance with various embodiments, a ringless web can be anchored at one or more locations below the valve plane in the ventricle, such as at a papillary muscle, and one or more locations above the valve plane, such as in the valve annulus. A tensioning mechanism connecting the ringless web to one or more of the anchors can be used to adjust a tension of the web such that web restrains the leaflet to prevent prolapse by restricting leaflet motion to the coaptation zone and/or promotes natural coaptation of the valve leaflets.Type: ApplicationFiled: October 3, 2016Publication date: October 11, 2018Inventors: Giovanni Speziali, Dave Blaeser, John Zentgraf
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Patent number: 10080659Abstract: Methods and apparatus for heart valve repair utilize a heart valve repair device including a generally annular ring-like structure and a net structure. The ring-like structure is seated in the valve annulus with the net structure extending from the ring-like structure through the coaptation zone between leaflets. The net structure can then be anchored to a heart structure with a suture. Net structure extending between leaflets helps prevent prolapse of leaflets and can aid in coaptation.Type: GrantFiled: December 29, 2011Date of Patent: September 25, 2018Assignee: NeoChord, Inc.Inventors: John Zentgraf, David Joseph Parins, Arun Sarini, Giovanni Speziali
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Patent number: 9393080Abstract: To improve the overall navigation process for minimally invasive repair of heart valve leaflets, an augmented reality technique capable of providing a robust three-dimensional context for transesophogeal echocardiography data has been developed. In the context of various embodiment of the invention, augmented reality essentially refers to a system in which the primary environment is virtual but the environment is augmented by real elements. In this real-time environment, the surgeon can easily and intuitively identify the tool, surgical targets, and high risk areas, and view tool trajectories and orientations.Type: GrantFiled: January 16, 2015Date of Patent: July 19, 2016Assignee: NeoChord, Inc.Inventors: John Zentgraf, Terry Peters
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Publication number: 20160143737Abstract: A method of repairing a heart valve provides intravascular access for repair of a heart valve through a ventricular trans-septal approach. An external guide catheter can be inserted through a vein of a patient into the right ventricle via the right atrium. An internal guide catheter can be inserted through the external guide and can provide access to the septum for a puncture tool to create an opening through the septum to the left ventricle. The internal guide can then be advanced into the left ventricle and used to guide a deployment catheter that deploys a repair device onto the heart valve.Type: ApplicationFiled: November 20, 2015Publication date: May 26, 2016Inventors: John Zentgraf, David J. Parins, Arun Saini