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).

  • Patent number: 11911023
    Abstract: 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: Grant
    Filed: August 22, 2022
    Date of Patent: February 27, 2024
    Assignee: NeoChord, Inc.
    Inventor: John Zentgraf
  • Publication number: 20230157824
    Abstract: 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: Application
    Filed: October 31, 2022
    Publication date: May 25, 2023
    Inventors: Giovanni Speziali, Dave Blaeser, John Zentgraf
  • Publication number: 20230091251
    Abstract: 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: Application
    Filed: August 22, 2022
    Publication date: March 23, 2023
    Inventor: John Zentgraf
  • Patent number: 11484409
    Abstract: 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: Grant
    Filed: September 3, 2020
    Date of Patent: November 1, 2022
    Assignee: NeoChord, Inc.
    Inventors: Giovanni Speziali, Dave Blaeser, John Zentgraf
  • Patent number: 11419602
    Abstract: 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: Grant
    Filed: November 8, 2019
    Date of Patent: August 23, 2022
    Assignee: NeoChord, Inc.
    Inventor: John Zentgraf
  • Publication number: 20210030543
    Abstract: 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: Application
    Filed: September 3, 2020
    Publication date: February 4, 2021
    Inventors: Giovanni Speziali, Dave Blaeser, John Zentgraf
  • Publication number: 20200368022
    Abstract: 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: Application
    Filed: June 18, 2020
    Publication date: November 26, 2020
    Inventors: John Zentgraf, David J. Parins, Arun Saini
  • Patent number: 10765517
    Abstract: 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: Grant
    Filed: October 3, 2016
    Date of Patent: September 8, 2020
    Assignee: Neochord, Inc.
    Inventors: Giovanni Speziali, Dave Blaeser, John Zentgraf
  • Patent number: 10695178
    Abstract: 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: Grant
    Filed: November 20, 2015
    Date of Patent: June 30, 2020
    Assignee: NeoChord, Inc.
    Inventors: John Zentgraf, David J. Parins, Arun Saini
  • Publication number: 20200179213
    Abstract: 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: Application
    Filed: December 12, 2017
    Publication date: June 11, 2020
    Inventors: Eli Krumholz, Rob Wudlick, John Zentgraf, Angie Conley, Rob Roberts, Chris Narveson
  • Publication number: 20200138430
    Abstract: 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: Application
    Filed: November 8, 2019
    Publication date: May 7, 2020
    Inventor: John Zentgraf
  • Publication number: 20200030177
    Abstract: 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: Application
    Filed: March 8, 2018
    Publication date: January 30, 2020
    Inventors: John Zentgraf, James Rohl, Joe Schachtner, Eli Krumholz, Rob Wudlick, Travis Yoch, Chris Narveson, Rob Roberts, Rod Landers, Angie Conley, Brett Neubauer
  • Patent number: 10507018
    Abstract: 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: Grant
    Filed: June 20, 2014
    Date of Patent: December 17, 2019
    Assignee: NeoChord, Inc.
    Inventor: John Zentgraf
  • Publication number: 20190133766
    Abstract: 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: Application
    Filed: November 15, 2018
    Publication date: May 9, 2019
    Inventors: John Zentgraf, David Joseph Parins, Arun Saini
  • Publication number: 20190053902
    Abstract: 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: Application
    Filed: September 21, 2018
    Publication date: February 21, 2019
    Inventors: John Zentgraf, David Joseph Parins, Arun Saini, Giovanni Speziali
  • Patent number: 10130474
    Abstract: 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: Grant
    Filed: May 8, 2015
    Date of Patent: November 20, 2018
    Assignee: NeoChord, Inc.
    Inventors: John Zentgraf, David Joseph Parins, Arun Saini
  • Publication number: 20180289483
    Abstract: 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: Application
    Filed: October 3, 2016
    Publication date: October 11, 2018
    Inventors: Giovanni Speziali, Dave Blaeser, John Zentgraf
  • Patent number: 10080659
    Abstract: 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: Grant
    Filed: December 29, 2011
    Date of Patent: September 25, 2018
    Assignee: NeoChord, Inc.
    Inventors: John Zentgraf, David Joseph Parins, Arun Sarini, Giovanni Speziali
  • Patent number: 9393080
    Abstract: 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: Grant
    Filed: January 16, 2015
    Date of Patent: July 19, 2016
    Assignee: NeoChord, Inc.
    Inventors: John Zentgraf, Terry Peters
  • Publication number: 20160143737
    Abstract: 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: Application
    Filed: November 20, 2015
    Publication date: May 26, 2016
    Inventors: John Zentgraf, David J. Parins, Arun Saini