Patents by Inventor David A. Vorp

David A. Vorp 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: 11850141
    Abstract: A tubular tissue graft device is provided comprising a tubular member and a restrictive fiber matrix of a bioerodible polymer about a circumference of the tubular tissue. The matrix may be electrospun onto the tubular tissue. In one embodiment, the tubular tissue is from a vein, such as a saphenous vein, useful as an arterial graft, for example and without limitation, in a coronary artery bypass procedure. Also provided is method of preparing a tubular graft comprising depositing a fiber matrix of a bioerodible polymer about a perimeter of a tubular tissue to produce a tubular tissue graft device. A cardiac bypass method comprising bypassing a coronary artery with a tubular tissue graft device comprising a vein and a restrictive fiber matrix of a bioerodible polymer about a circumference of the vein also is provided.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: December 26, 2023
    Assignee: University of Pittsburgh—Of the Commonwealth System of Higher Education
    Inventors: Mohammed S. El-Kurdi, William R. Wagner, David A. Vorp, John J. Stankus, Lorenzo Soletti, Jonathan McGrath, Yi Hong, J Christopher Flaherty
  • Publication number: 20230285290
    Abstract: Provided herein is a drug delivery device and composition, such as a particle, comprising conditioned medium. Also provided herein is a method of preparing polymeric particles for release of conditioned medium. Further, a tissue growth scaffold comprising particles for release of conditioned medium is provided.
    Type: Application
    Filed: May 11, 2023
    Publication date: September 14, 2023
    Inventors: Morgan Virginia Fedorchak, Jeffrey Krawiec, Steven R. Little, Katherine Lorentz, David A. Vorp, Justin Sol Weinbaum
  • Patent number: 11684574
    Abstract: Provided herein is a drug delivery device and composition, such as a particle, comprising conditioned medium. Also provided herein is a method of preparing polymeric particles for release of conditioned medium. Further, a tissue growth scaffold comprising particles for release of conditioned medium is provided.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: June 27, 2023
    Assignees: University of Pittsburgh—Of the Commonwealth System of Higher Education, Svstem of Higher Education 1tts
    Inventors: Morgan Virginia Fedorchak, Jeffrey Krawiec, Steven R. Little, Katherine Lorentz, David A. Vorp, Justin Weinbaum
  • Publication number: 20220192502
    Abstract: An endovascular apparatus can comprise an array of emitters configured to emit light at a predetermined wavelength and an array of sensors configured to detect light emitted by the emitters and reflected off a surface. The device can be configured to be inserted into a stent within a blood vessel of a patient and the device can be configured to detect the location of a branch blood vessel based on the reflected light detected by the array of sensors. Some devices detect light through a stent wall from an emitter positioned in the branch vessel. Some devices include fiber optics or phototransistors for receiving light from the emitter. Some devices include a fenestration former and a guidewire director along with the light receivers all in one endovascular device.
    Type: Application
    Filed: April 17, 2020
    Publication date: June 23, 2022
    Applicant: University of Pittsburgh - Of the Commonwealth System of Higher Education
    Inventors: Mohammad H. Eslami, David A. Vorp, Timothy K. Chung
  • Publication number: 20210338816
    Abstract: A method of delivering cells to a target tissue is provided comprising depositing a hydrogel pre-gel comprising magnetic particle-loaded cells to the target tissue and, prior to or during gelation of the hydrogel, drawing the magnetic particle-loaded cells to the tissue with a magnetic field, followed by gelation of the hydrogel to lock the cells in place on the tissue. The cells may be mesenchymal stem cells, such as adipose-derived mesenchymal stem cells, and the target tissue may be adventitial tissue of an aneurysm in a blood vessel. Also provided are devices useful in the method.
    Type: Application
    Filed: October 18, 2019
    Publication date: November 4, 2021
    Inventors: David A. Vorp, Aneesh Krishna Ramaswamy, Justin Sol Weinbaum, Kory James Blose, Timothy Kwang-Joon Chung, Trevor Kickliter, Yogev Baruch, John A. Curci
  • Publication number: 20200237494
    Abstract: A tubular tissue graft device is provided comprising a tubular member and a restrictive fiber matrix of a bioerodible polymer about a circumference of the tubular tissue. The matrix may be electrospun onto the tubular tissue. In one embodiment, the tubular tissue is from a vein, such as a saphenous vein, useful as an arterial graft, for example and without limitation, in a coronary artery bypass procedure. Also provided is method of preparing a tubular graft comprising depositing a fiber matrix of a bioerodible polymer about a perimeter of a tubular tissue to produce a tubular tissue graft device. A cardiac bypass method comprising bypassing a coronary artery with a tubular tissue graft device comprising a vein and a restrictive fiber matrix of a bioerodible polymer about a circumference of the vein also is provided.
    Type: Application
    Filed: September 20, 2019
    Publication date: July 30, 2020
    Inventors: Mohammed S. El-Kurdi, William R. Wagner, David A. Vorp, John J. Stankus, Lorenzo Soletti, Jonathan McGrath, Yi Hong, J. Christopher Flaherty
  • Publication number: 20190336444
    Abstract: Provided herein is a drug delivery device and composition, such as a particle, comprising conditioned medium. Also provided herein is a method of preparing polymeric particles for release of conditioned medium. Further, a tissue growth scaffold comprising particles for release of conditioned medium is provided.
    Type: Application
    Filed: June 29, 2017
    Publication date: November 7, 2019
    Inventors: Morgan Virginia Fedorchak, Jeffrey Krawiec, Steven R. Little, Katherine Lorentz, David A. Vorp, Justin Weinbaum
  • Patent number: 10239071
    Abstract: A cartridge device is provided for applying a fiber matrix to a tubular member such as a saphenous vein graft. The cartridge includes a housing, a tubular member holder, a rotational drive, and a polymer delivery assembly. The housing defines a chamber which surrounds the tubular member holder. The rotational drive rotates the tubular member during the fiber application process.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: March 26, 2019
    Assignees: Neograft Technologies, Inc., University Of Pittsburgh—of the Commonwealth System of Higher Education
    Inventors: Lorenzo Soletti, Mohammed S. El-Kurdi, Jon McGrath, Andrew Ziegler, J. Christopher Flaherty, William R. Wagner, David Vorp
  • Publication number: 20170340432
    Abstract: A tubular tissue graft device is provided comprising a tubular member and a restrictive fiber matrix of a bioerodible polymer about a circumference of the tubular tissue. The matrix may be electrospun onto the tubular tissue. In one embodiment, the tubular tissue is from a vein, such as a saphenous vein, useful as an arterial graft, for example and without limitation, in a coronary artery bypass procedure. Also provided is method of preparing a tubular graft comprising depositing a fiber matrix of a bioerodible polymer about a perimeter of a tubular tissue to produce a tubular tissue graft device. A cardiac bypass method comprising bypassing a coronary artery with a tubular tissue graft device comprising a vein and a restrictive fiber matrix of a bioerodible polymer about a circumference of the vein also is provided.
    Type: Application
    Filed: March 8, 2017
    Publication date: November 30, 2017
    Inventors: Mohammed S. El-Kurdi, J. Christopher Flaherty, Yi Hong, Jonathan McGrath, Lorenzo Soletti, John J. Stankus, David A. Vorp, William R. Wagner
  • Patent number: 9622849
    Abstract: A tubular tissue graft device is provided comprising a tubular member and a restrictive fiber matrix of a bioerodible polymer about a circumference of the tubular tissue. The matrix may be electrospun onto the tubular tissue. In one embodiment, the tubular tissue is from a vein, such as a saphenous vein, useful as an arterial graft, for example and without limitation, in a coronary artery bypass procedure. 5 Also provided is method of preparing a tubular graft comprising depositing a fiber matrix of a bioerodible polymer about a perimeter of a tubular tissue to produce a tubular tissue graft device. A cardiac bypass method comprising bypassing a coronary artery with a tubular tissue graft device comprising a vein and a restrictive fiber matrix of a bioerodible polymer about a circumference of the vein also is provided.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: April 18, 2017
    Assignee: University of Pittsburgh—Of the Commonwealth System of Higher Education
    Inventors: Mohammed El-Kurdi, J. Christopher Flaherty, Yi Hong, Jonathan McGrath, Lorenzo Soletti, John Stankus, David Vorp, William Wagner
  • Publication number: 20170043360
    Abstract: A cartridge device is provided for applying a fiber matrix to a tubular member such as a saphenous vein graft. The cartridge includes a housing, a tubular member holder, a rotational drive, and a polymer delivery assembly. The housing defines a chamber which surrounds the tubular member holder. The rotational drive rotates the tubular member during the fiber application process.
    Type: Application
    Filed: August 4, 2016
    Publication date: February 16, 2017
    Applicant: University of Pittsburgh - of the Commonwealth System of Higher Education
    Inventors: Lorenzo SOLETTI, Mohammed S. EL-KURDI, Jon MCGRATH, Andrew ZIEGLER, J. Christopher FLAHERTY, William R. WAGNER, David VORP
  • Publication number: 20160317280
    Abstract: A tubular tissue graft device is provided comprising a tubular tissue and a restrictive fiber matrix of a bioerodible polymer about a circumference of the tubular tissue. The matrix may be electrospun onto the tubular tissue. In one embodiment, the tubular tissue is from a vein, such as a saphenous vein, useful as an arterial graft, for example and without limitation, in a coronary artery bypass procedure. Also provided is method of preparing a tubular graft comprising depositing a fiber matrix of a bioerodible polymer about a perimeter of a tubular tissue to produce a tubular tissue graft device. A cardiac bypass method comprising bypassing a coronary artery with a tubular tissue graft device comprising a vein and a restrictive fiber matrix of a bioerodible polymer about a circumference of the vein also is provided.
    Type: Application
    Filed: March 31, 2016
    Publication date: November 3, 2016
    Inventors: Mohammed S. El-Kurdi, Yi Hong, Lorenzo Soletti, John J. Stankus, David A. Vorp, William R. Wagner
  • Patent number: 9445874
    Abstract: A cartridge device is provided for applying a fiber matrix to a tubular member such as a saphenous vein graft. The cartridge includes a housing, a tubular member holder, a rotational drive, and a polymer delivery assembly. The housing defines a chamber which surrounds the tubular member holder. The rotational drive rotates the tubular member during the fiber application process.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: September 20, 2016
    Assignees: Neograft Technologies, Inc., University of Pittsburgh—of the Commonwealth System of Higher Education
    Inventors: Lorenzo Soletti, Mohammed S. El-Kurdi, Jon McGrath, Andrew Ziegler, J. Christopher Flaherty, William R. Wagner, David Vorp
  • Patent number: 9333068
    Abstract: A tubular tissue graft device is provided comprising a tubular tissue and a restrictive fiber matrix of a bioerodible polymer about a circumference of the tubular tissue. The matrix may be electrospun onto the tubular tissue. In one embodiment, the tubular tissue is from a vein, such as a saphenous vein, useful as an arterial graft, for example and without limitation, in a coronary artery bypass procedure. Also provided is method of preparing a tubular graft comprising depositing a fiber matrix of a bioerodible polymer about a perimeter of a tubular tissue to produce a tubular tissue graft device. A cardiac bypass method comprising bypassing a coronary artery with a tubular tissue graft device comprising a vein and a restrictive fiber matrix of a bioerodible polymer about a circumference of the vein also is provided.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: May 10, 2016
    Assignee: University of Pittsburgh—Of the Commonwealth System of Higher Education
    Inventors: Mohammed S. El-Kurdi, Yi Hong, Lorenzo Soletti, John J. Stankus, David A. Vorp, William R. Wagner
  • Patent number: 9237945
    Abstract: A tubular tissue graft device is provided comprising a tubular tissue and a restrictive fiber matrix of a bioerodible polymer about a circumference of the tubular tissue. The matrix may be electrospun onto the tubular tissue. In one embodiment, the tubular tissue is from a vein, such as a saphenous vein, useful as an arterial graft, for example and without limitation, in a coronary artery bypass procedure. Also provided is method of preparing a tubular graft comprising depositing a fiber matrix of a bioerodible polymer about a perimeter of a tubular tissue to produce a tubular tissue graft device. A cardiac bypass method comprising bypassing a coronary artery with a tubular tissue graft device comprising a vein and a restrictive fiber matrix of a bioerodible polymer about a circumference of the vein also is provided.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: January 19, 2016
    Assignee: University of Pittsburgh—Of the Commonwealth System of Higher Education
    Inventors: Mohammed S. El-Kurdl, Yi Hong, Lorenzo Soletti, John J. Stankus, David A. Vorp, William R. Wagner
  • Publication number: 20150150673
    Abstract: A tubular tissue graft device is provided comprising a tubular tissue and a restrictive fiber matrix of a bioerodible polymer about a circumference of the tubular tissue. The matrix may be electrospun onto the tubular tissue. In one embodiment, the tubular tissue is from a vein, such as a saphenous vein, useful as an arterial graft, for example and without limitation, in a coronary artery bypass procedure. Also provided is method of preparing a tubular graft comprising depositing a fiber matrix of a bioerodible polymer about a perimeter of a tubular tissue to produce a tubular tissue graft device. A cardiac bypass method comprising bypassing a coronary artery with a tubular tissue graft device comprising a vein and a restrictive fiber matrix of a bioerodible polymer about a circumference of the vein also is provided.
    Type: Application
    Filed: January 21, 2015
    Publication date: June 4, 2015
    Inventors: Mohammed S. El-Kurdi, Yi Hong, Lorenzo Soletti, John J. Stankus, David A. Vorp, William R. Wagner
  • Publication number: 20140005470
    Abstract: A cartridge device is provided for applying a fiber matrix to a tubular member such as a saphenous vein graft. The cartridge includes a housing, a tubular member holder, a rotational drive, and a polymer delivery assembly. The housing defines a chamber which surrounds the tubular member holder. The rotational drive rotates the tubular member during the fiber application process.
    Type: Application
    Filed: July 19, 2011
    Publication date: January 2, 2014
    Applicant: NEOGRAFT TECHNOLOGIES, INC.
    Inventors: Lorenzo Soletti, Mohammed S. El-Kurdi, Jon McGrath, Andrew Ziegler, J. Christopher Flaherty, William R. Wagner, David Vorp
  • Publication number: 20120330437
    Abstract: A tubular tissue graft device is provided comprising a tubular member and a restrictive fiber matrix of a bioerodible polymer about a circumference of the tubular tissue. The matrix may be electrospun onto the tubular tissue. In one embodiment, the tubular tissue is from a vein, such as a saphenous vein, useful as an arterial graft, for example and without limitation, in a coronary artery bypass procedure. 5 Also provided is method of preparing a tubular graft comprising depositing a fiber matrix of a bioerodible polymer about a perimeter of a tubular tissue to produce a tubular tissue graft device. A cardiac bypass method comprising bypassing a coronary artery with a tubular tissue graft device comprising a vein and a restrictive fiber matrix of a bioerodible polymer about a circumference of the vein also is provided.
    Type: Application
    Filed: October 28, 2010
    Publication date: December 27, 2012
    Applicant: Univeristy of Pittsburgh of the Commonwealth System of Highter Education
    Inventors: Mohammed El-Kurdi, J. Christopher Flaherty, Yi Hong, Jonathan McGrath, Lorenzo Soletti, John Stankus, David Vorp, William Wagner
  • Publication number: 20080208323
    Abstract: A tubular tissue graft device is provided comprising a tubular tissue and a restrictive fiber matrix of a bioerodible polymer about a circumference of the tubular tissue. The matrix may be electrospun onto the tubular tissue. In one embodiment, the tubular tissue is from a vein, such as a saphenous vein, useful as an arterial graft, for example and without limitation, in a coronary artery bypass procedure. Also provided is method of preparing a tubular graft comprising depositing a fiber matrix of a bioerodible polymer about a perimeter of a tubular tissue to produce a tubular tissue graft device. A cardiac bypass method comprising bypassing a coronary artery with a tubular tissue graft device comprising a vein and a restrictive fiber matrix of a bioerodible polymer about a circumference of the vein also is provided.
    Type: Application
    Filed: January 30, 2008
    Publication date: August 28, 2008
    Inventors: Mohammed S. El-Kurdi, Yi Hong, Lorenzo Soletti, John J. Stankus, David A. Vorp, William R. Wagner
  • Publication number: 20080109070
    Abstract: Described herein are elastomeric materials, and in particular porous biodegradable elastomeric materials which optionally may have microintegrated cells. Also described herein are bioprosthetic devices that can be manufactured using the biodegradable elastomeric materials, non-limiting examples of such devices including pulmonary valves, vocal chords, and blood vessels.
    Type: Application
    Filed: August 10, 2007
    Publication date: May 8, 2008
    Inventors: William Wagner, John Stankus, Jianjun Guan, Kazuro Fujimoto, Alejandro Nieponice, Lorenzo Soletti, David Vorp, Michael Sacks, Todd Courtney, John Mayer