Patents by Inventor Robert T. Chang

Robert T. Chang 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).

  • Publication number: 20180325422
    Abstract: Systems and methods for respiratory health management are provided. An air filtration and analysis system may comprise an apparatus configured to be worn by a user. The apparatus may comprise a filtration device. The system may also include a plurality of sensors configured to collect data. A portion of the sensor data may be indicative of (i) one or more characteristics of the air inhaled and/or exhaled by the user, and/or (ii) an environment in which the user is located. At least one sensor and/or the apparatus may be in communication with a processor that is configured to analyze the collected sensor data.
    Type: Application
    Filed: July 20, 2018
    Publication date: November 15, 2018
    Inventors: Eric R. Sokol, Jan Liphardt, Robert T. Chang
  • Patent number: 9861475
    Abstract: Devices, systems, and methods employ an implant that is sized and configured to attach to the annulus of a dysfunctional heart valve annulus. In use, the implant extends across the major axis of the annulus above and/or along the valve annulus. The implant reshapes the major axis dimension and/or other surrounding anatomic structures. The implant restores to the heart valve annulus and leaflets a more functional anatomic shape and tension. The more functional anatomic shape and tension are conducive to coaptation of the leaflets during systole, which, in turn, reduces regurgitation. The implant improves function to the valve, without surgically cinching, resecting, and/or fixing in position large portions of a dilated annulus, or without the surgical fixation of ring-like structures.
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: January 9, 2018
    Assignee: MVRX INC.
    Inventors: Timothy R. Machold, David A. Rahdert, John A. Macoviak, Robert T. Chang, Rick A. Soss
  • Publication number: 20170281329
    Abstract: The disclosure pertains to a vessel for holding replacement heart valves and associated positioning and installation apparatus which is configured and adapted to contain a biocidal sterilization fluid during and following exposure of a delivery system for the replacement heart valve to sterilization by ionizing radiation and methods of use therefor. The vessel includes a shield which limits exposure of biologically derived material therein to radiation. The vessel also provides a storage and shipping container for the replacement heart valve in which the biologically derived material is maintained in a sterile fluid environment.
    Type: Application
    Filed: June 15, 2017
    Publication date: October 5, 2017
    Applicant: BOSTON SCIENTIFIC SCIMED INC.
    Inventors: Robert T. Chang, Brian K. McCollum, Michael J. Conroy
  • Publication number: 20170216031
    Abstract: Implants or systems of implants and methods apply a selected force vector or a selected combination of force vectors within or across the left atrium, which allow mitral valve leaflets to better coapt. The implants or systems of implants and methods make possible rapid deployment, facile endovascular delivery, and full intra-atrial adjustability and retrievability years after implant. The implants or systems of implants and methods also make use of strong fluoroscopic landmarks. The implants or systems of implants and methods make use of an adjustable implant and a fixed length implant. The implants or systems of implants and methods may also utilise an adjustable bridge stop to secure the implant, and the methods of implantation employ various tools.
    Type: Application
    Filed: February 13, 2017
    Publication date: August 3, 2017
    Applicant: MVRX, INC.
    Inventors: Timothy R. Machold, David J. Scott, David A. Rahdert, David R. Tholfsen, Robert T. Chang, John A. Macoviak
  • Patent number: 9707077
    Abstract: The disclosure pertains to a vessel for holding replacement heart valves and associated positioning and installation apparatus which is configured and adapted to contain a biocidal sterilization fluid during and following exposure of a delivery system for the replacement heart valve to sterilization by ionizing radiation and methods of use therefor. The vessel includes a shield which limits exposure of biologically derived material therein to radiation. The vessel also provides a storage and shipping container for the replacement heart valve in which the biologically derived material is maintained in a sterile fluid environment.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: July 18, 2017
    Assignee: Boston Scientific Scimed Inc.
    Inventors: Robert T. Chang, Brian K. McCollum, Michael J. Conroy
  • Publication number: 20170165068
    Abstract: Anchors for securing an implant within a body organ and/or reshaping a body organ are provided herein. Anchors are configured for deployment in a body lumen or vasculature of the patient that are curved or conformable to accommodate anatomy of the patient. Such anchors can include deformable or collapsible structures upon tensioning of a bridging element in a lateral direction, or segmented tubes that can be adjusted by tightening of one or more tethers extending therethrough. Such anchors can be used as a posterior anchor in a blood vessel in implant systems having a tensioned bridging element extending between the posterior anchor and an anterior anchor deployed at another location within or along the body organ. Methods of deploying such anchors, and use of multiple anchors or multiple bridging elements to a single anchor are also provided.
    Type: Application
    Filed: December 12, 2016
    Publication date: June 15, 2017
    Applicant: MVRx, Inc.
    Inventors: Timothy R. Machold, David A. Rahdert, Robert T. Chang, Ganesh Manoharan
  • Publication number: 20170156864
    Abstract: Implants or systems of implants and methods apply a selected force vector or a selected combination of force vectors within or across the left atrium, which allow mitral valve leaflets to better coapt. The implants or systems of implants and methods make possible rapid deployment, facile endovascular delivery, and full intra-atrial retrievability. The implants or systems of implants and methods also make use of strong fluoroscopic landmarks. The implants or systems of implants and methods make use of an adjustable implant and a fixed length implant. The implants or systems of implants and methods may also utilize a bridge stop to secure the implant, and the methods of implantation employ various tools.
    Type: Application
    Filed: October 21, 2016
    Publication date: June 8, 2017
    Applicant: MVRx, Inc.
    Inventors: Robert T. Chang, John A. Macoviak, David A. Rahdert, Timothy R. Machold
  • Patent number: 9610161
    Abstract: An implant for supplementing, repairing, or replacing a native heart valve leaflet or leaflets provides a scaffold, which defines a pseudo-annulus. The implant further has at least two struts in generally oppositely spaced apart positions on the scaffold. The scaffold can be placed in an elastically loaded condition in a heart with the struts engaging tissue at or near the leaflet commissures of a heart valve annulus, to reshape the annulus for leaflet coaptation. The implant further provides a neoleaflet element coupled to the scaffold within pseudo-annulus, to provide a one-way valve function.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: April 4, 2017
    Assignee: MVRX, INC.
    Inventors: John A. Macoviak, Robert T. Chang, David A. Rahdert, Timothy R. Machold, Rick A. Soss
  • Patent number: 9597184
    Abstract: Implants or systems of implants and methods apply a selected force vector or a selected combination of force vectors within or across the left atrium, which allow mitral valve leaflets to better coapt. The implants or systems of implants and methods make possible rapid deployment, facile endovascular delivery, and full intra-atrial adjustability and retrievability years after implant. The implants or systems of implants and methods also make use of strong fluoroscopic landmarks. The implants or systems of implants and methods make use of an adjustable implant and a fixed length implant. The implants or systems of implants and methods may also utilize an adjustable bridge stop to secure the implant, and the methods of implantation employ various tools.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: March 21, 2017
    Assignee: MVRX, INC.
    Inventors: Timothy R. Machold, David J. Scott, David A. Rahdert, David R. Tholfsen, Robert T. Chang, John A. Macoviak
  • Publication number: 20170055969
    Abstract: Implants or systems of implants and methods apply a selected force vector or a selected combination of force vectors within or across the left atrium, which allow mitral valve leaflets to better coapt. The implants or systems of implants and methods make possible rapid deployment, facile endovascular delivery, and full intra-atrial retrievability. The implants or systems of implants and methods also make use of strong fluoroscopic landmarks. The implants or systems of implants and methods make use of an adjustable implant and a fixed length implant. The implants or systems of implants and methods may also utilize a bridge stop to secure the implant, and the methods of implantation employ various tools.
    Type: Application
    Filed: November 11, 2016
    Publication date: March 2, 2017
    Applicant: MVRx, Inc.
    Inventors: Timothy R. Machold, Robert T. Chang, David A. Rahdert, David Scott, David R. Tholfsen
  • Publication number: 20160374812
    Abstract: Implants or systems of implants and methods apply a selected force vector or a selected combination of force vectors within or across the left atrium, which allow mitral valve leaflets to better coapt. The implants or systems of implants and methods make possible rapid deployment, facile endovascular delivery, and full intra-atrial retrievability. The implants or systems of implants and methods also make use of strong fluoroscopic landmarks. The implants or systems of implants and methods make use of an adjustable implant and a fixed length implant. The implants or systems of implants and methods may also utilize a bridge stop to secure the implant, and the methods of implantation employ various tools.
    Type: Application
    Filed: September 12, 2016
    Publication date: December 29, 2016
    Applicant: MVRx, Inc.
    Inventors: Timothy R. Machold, Robert T. Chang, David A. Rahdert, David Scott, David R. Tholfsen
  • Patent number: 9498331
    Abstract: Implants or systems of implants and methods apply a selected force vector or a selected combination of force vectors within or across the left atrium, which allow mitral valve leaflets to better coapt. The implants or systems of implants and methods make possible rapid deployment, facile endovascular delivery, and full intra-atrial retrievability. The implants or systems of implants and methods also make use of strong fluoroscopic landmarks. The implants or systems of implants and methods make use of an adjustable implant and a fixed length implant. The implants or systems of implants and methods may also utilize a bridge stop to secure the implant, and the methods of implantation employ various tools.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: November 22, 2016
    Assignee: MVRx, Inc.
    Inventors: Robert T. Chang, John A. Macoviak, David A. Rahdert, Timothy R. Machold
  • Publication number: 20160262887
    Abstract: Implants or systems of implants and methods apply a selected force vector or a selected combination of force vectors within or across the right atrium, which allow tricuspid valve leaflets to better coapt. The implants or systems of implants and methods make possible rapid deployment, facile endovascular delivery, and full intra-atrial retrievability. The implants or systems of implants and methods also make use of strong fluoroscopic landmarks. The implants or systems of implants and methods make use of an adjustable implant. The implants or systems of implants and methods may utilize a bridge stop to secure the implant.
    Type: Application
    Filed: October 20, 2015
    Publication date: September 15, 2016
    Applicant: MVRx, INC.
    Inventors: ROBERT T. CHANG, TIMOTHY R. MACHOLD, DAVID A. RAHDERT, JASON ROGERS
  • Publication number: 20160067043
    Abstract: Implants or systems of implants and methods apply a selected force vector or a selected combination of force vectors within or across the left atrium, which allow mitral valve leaflets to better coapt. The implants or systems of implants and methods make possible rapid deployment, facile endovascular delivery, and full intra-atrial retrievability. The implants or systems of implants and methods also make use of strong fluoroscopic landmarks. The implants or systems of implants and methods make use of an adjustable implant and a fixed length implant. The implants or systems of implants and methods may also utilize a bridge stop to secure the implant, and the methods of implantation employ various tools.
    Type: Application
    Filed: November 19, 2015
    Publication date: March 10, 2016
    Applicant: MVRx, INC.
    Inventors: TIMOTHY R. MACHOLD, ROBERT T. CHANG, DAVID A. RAHDERT, DAVID SCOTT, DAVID R. THOLFSEN
  • Patent number: 9179896
    Abstract: Implants or systems of implants and methods apply a selected force vector or a selected combination of force vectors within or across the left atrium, which allow mitral valve leaflets to better coapt. The implants or systems of implants and methods make possible rapid deployment, facile endovascular delivery, and full intra-atrial adjustability and retrievability years after implant. The implants or systems of implants and methods also make use of strong fluoroscopic landmarks. The implants or systems of implants and methods make use of an adjustable implant and a fixed length implant. The implants or systems of implants and methods may also utilize an adjustable bridge stop to secure the implant, and the methods of implantation employ various tools.
    Type: Grant
    Filed: August 15, 2011
    Date of Patent: November 10, 2015
    Assignee: MVRx, Inc.
    Inventors: Timothy R Machold, David J Scott, David A Rahdert, David R Tholfsen, Robert T Chang, John A Macoviak
  • Publication number: 20150289976
    Abstract: Implants or systems of implants and methods apply a selected force vector or a selected combination of force vectors within or across the left atrium, which allow mitral valve leaflets to better coapt. The implants or systems of implants and methods make possible rapid deployment, facile endovascular delivery, and full intra-atrial adjustability and retrievability years after implant. The implants or systems of implants and methods also make use of strong fluoroscopic landmarks. The implants or systems of implants and methods make use of an adjustable implant and a fixed length implant. The implants or systems of implants and methods may also utilize an adjustable bridge stop to secure the implant, and the methods of implantation employ various tools.
    Type: Application
    Filed: June 26, 2015
    Publication date: October 15, 2015
    Applicant: MVRx, Inc.
    Inventors: Timothy R. Machold, David J. Scott, David A. Rahdert, David R. Tholfsen, Robert T. Chang, John A. Macoviak
  • Publication number: 20150182337
    Abstract: Implants or systems of implants and methods apply a selected force vector or a selected combination of force vectors within or across the left atrium, which allow mitral valve leaflets to better coapt. The implants or systems of implants and methods make possible rapid deployment, facile endovascular delivery, and full intra-atrial retrievability. The implants or systems of implants and methods also make use of strong fluoroscopic landmarks. The implants or systems of implants and methods make use of an adjustable implant and a fixed length implant. The implants or systems of implants and methods may also utilize a bridge stop to secure the implant, and the methods of implantation employ various tools.
    Type: Application
    Filed: March 16, 2015
    Publication date: July 2, 2015
    Applicant: MVRx, INC.
    Inventors: Robert T. Chang, John A. Macoviak, David A. Rahdert, Timothy R. Machold
  • Publication number: 20150157459
    Abstract: Implants or systems of implants apply a selected force vector or a selected combination of force vectors within or across the left atrium, which allow mitral valve leaflets to better coapt. The implants or systems of implants make possible rapid deployment, facile endovascular delivery, and full intra-atrial retrievability. The implants or systems of implants also make use of strong fluoroscopic landmarks.
    Type: Application
    Filed: February 17, 2015
    Publication date: June 11, 2015
    Applicant: MVRx, INC.
    Inventors: JOHN A. MACOVIAK, ROBERT T. CHANG, DAVID A. RAHDERT, TIMOTHY R. MACHOLD
  • Patent number: 8979925
    Abstract: Implants or systems of implants and methods apply a selected force vector or a selected combination of force vectors within or across the left atrium, which allow mitral valve leaflets to better coapt. The implants or systems of implants and methods make possible rapid deployment, facile endovascular delivery, and full intra-atrial retrievability. The implants or systems of implants and methods also make use of strong fluoroscopic landmarks. The implants or systems of implants and methods make use of an adjustable implant and a fixed length implant. The implants or systems of implants and methods may also utilize a bridge stop to secure the implant, and the methods of implantation employ various tools.
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: March 17, 2015
    Assignee: MVRx, Inc.
    Inventors: Robert T. Chang, John A. Macoviak, David A. Rahdert, Timothy R. Machold
  • Patent number: 8956407
    Abstract: Implants or systems of implants apply a selected force vector or a selected combination of force vectors within or across the left atrium, which allow mitral valve leaflets to better coapt. The implants or systems of implants make possible rapid deployment, facile endovascular delivery, and full intra-atrial retrievability. The implants or systems of implants also make use of strong fluoroscopic landmarks.
    Type: Grant
    Filed: July 19, 2004
    Date of Patent: February 17, 2015
    Assignee: MVRx, Inc.
    Inventors: John A. Macoviak, Robert T. Chang, David A. Rahdert, Timothy R. Machold