Patents by Inventor Gregory Walters

Gregory Walters 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: 9247944
    Abstract: A trialing and preparation system for preparing a disc space between two adjacent vertebrae is provided. The system includes a guide shaft, a trialing cage or spacer, a scraper and a driving shaft. The guide shaft supports the trialing spacer within the disc space and may include an angular adjustment for such access. The scraper sleeves over the guide shaft into an abutting relationship with the adjacent vertebrae. The driving shaft is coupled to the scraper by a pivoting and reciprocation mechanism that allows angular adjustment of the scraper. Also, reciprocation of the driving shaft reciprocates the scraper through a limited sweep of motion to remove osteophytes from the vertebrae.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: February 2, 2016
    Assignee: DePuy Synthes Products, Inc.
    Inventors: Matthew Fenn, Stephen Heiman, Sean Saidha, Gregory Walters, Michael White
  • Publication number: 20140163560
    Abstract: A trialing and preparation system for preparing a disc space between two adjacent vertebrae is provided. The system includes a guide shaft, a trialing cage or spacer, a scraper and a driving shaft. The guide shaft supports the trialing spacer within the disc space and may include an angular adjustment for such access. The scraper sleeves over the guide shaft into an abutting relationship with the adjacent vertebrae. The driving shaft is coupled to the scraper by a pivoting and reciprocation mechanism that allows angular adjustment of the scraper. Also, reciprocation of the driving shaft reciprocates the scraper through a limited sweep of motion to remove osteophytes from the vertebrae.
    Type: Application
    Filed: December 7, 2012
    Publication date: June 12, 2014
    Applicant: SYNTHES USA, LLC
    Inventors: Matthew Fenn, Stephen Heiman, Sean Saidha, Gregory Walters, Michael White
  • Patent number: 8523801
    Abstract: An intra-luminal device for the extraction of occlusive or partially occlusive material is disclosed. Said device comprises a novel catheter extension which minimizes cavitation of extracted fluids and also allows the better navigation of tortuous lumens or vasculature.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: September 3, 2013
    Assignee: Kensey Nash Corporation
    Inventors: John E. Nash, Gregory Walters
  • Publication number: 20120323168
    Abstract: An intra-luminal device for the extraction of occlusive or partially occlusive material is disclosed. Said device comprises a novel catheter extension which minimizes cavitation of extracted fluids and also allows the better navigation of tortuous lumens or vasculature.
    Type: Application
    Filed: August 28, 2012
    Publication date: December 20, 2012
    Inventors: John E. Nash, Gregory Walters
  • Patent number: 8251978
    Abstract: An intra-luminal device for the extraction of occlusive or partially occlusive material is disclosed. The device includes a novel catheter extension which minimizes cavitation of extracted fluids and also allows the better navigation of tortuous lumens or vasculature.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: August 28, 2012
    Assignee: Kensey Nash Corporation
    Inventors: John E. Nash, Gregory Walters
  • Patent number: 8157787
    Abstract: A pumping system for use in medical applications where liquids must be infused and aspirated from a mammalian patient, and whose economics are such that it is cost effective to simply dispose of it after a single use. The system features positive displacement pump(s) such as reciprocating pump(s) containing a damping mechanism to dampen out the peaks and valleys in the fluid pressure that is pumped, which is important for preventing cavitation. The system furthermore features a shut-off valve on the extraction side so that certain injected fluids such as contrast medium, are not immediately pumped out of the patient. In a preferred embodiment, the system also features means for independently controlling the fluid pressure/volume on the infusion and extraction sides, self-priming capability, a continuous fluid path, and visual air bubble detection, with viewports located at important points in the fluid path, such as at pumps and valves.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: April 17, 2012
    Assignee: Kensey Nash Corporation
    Inventors: John E. Nash, Gregory Walters, Stephen Heiman, Jim Barnitz, Pete Fatone
  • Publication number: 20120004601
    Abstract: A pumping system for use in medical applications where liquids must be infused and aspirated from a mammalian patient, and whose economics are such that it is cost effective to simply dispose of it after a single use. The system features positive displacement pump(s) such as reciprocating pump(s) containing a damping mechanism to dampen out the peaks and valleys in the fluid pressure that is pumped, which is important for preventing cavitation. The system furthermore features a shut-off valve on the extraction side so that certain injected fluids such as contrast medium, are not immediately pumped out of the patient. In a preferred embodiment, the system also features means for independently controlling the fluid pressure/volume on the infusion and extraction sides, self-priming capability, a continuous fluid path, and visual air bubble detection, with viewports located at important points in the fluid path, such as at pumps and valves.
    Type: Application
    Filed: August 16, 2011
    Publication date: January 5, 2012
    Inventors: John E. Nash, Gregory Walters, Stephen Heiman, Jim Barnitz, Pete Fatone
  • Publication number: 20110263977
    Abstract: An intra-luminal device for the extraction of occlusive or partially occlusive material is disclosed. Said device comprises a novel catheter extension which minimizes cavitation of extracted fluids and also allows the better navigation of tortuous lumens or vasculature.
    Type: Application
    Filed: July 5, 2011
    Publication date: October 27, 2011
    Inventors: John E. Nash, Gregory Walters
  • Patent number: 7998107
    Abstract: A pumping system for use in medical applications where liquids must be infused and aspirated from a mammalian patient, and whose economics are such that it is cost effective to simply dispose of it after a single use. The system features positive displacement pump(s) such as reciprocating pump(s) containing a damping mechanism to dampen out the peaks and valleys in the fluid pressure that is pumped, which is important for preventing cavitation. The system furthermore features a shut-off valve on the extraction side so that certain injected fluids such as contrast medium, are not immediately pumped out of the patient. In a preferred embodiment, the system also features means for independently controlling the fluid pressure/volume on the infusion and extraction sides, self-priming capability, a continuous fluid path, and visual air bubble detection, with viewports located at important points in the fluid path, such as at pumps and valves.
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: August 16, 2011
    Assignee: Kensey Nash Corporation
    Inventors: John E. Nash, Gregory Walters, Stephen Heiman, Jim Barnitz, Pete Fatone
  • Patent number: 7972294
    Abstract: An intra-luminal device for the extraction of occlusive or partially occlusive material is disclosed. The device includes a novel catheter extension which minimizes cavitation of extracted fluids and also allows the better navigation of tortuous lumens or vasculature.
    Type: Grant
    Filed: January 8, 2008
    Date of Patent: July 5, 2011
    Assignee: Kensey Nash Corporation
    Inventors: John E. Nash, Gregory Walters
  • Patent number: 7744588
    Abstract: An attachment tool to facilitate the attachment of one or more catheters or similar elongated instruments to a guide-wire or other elongated guide member, without requiring access to either end of said wire or member. The tool provides repeatable and reliable alignment of components to be attached, while being operated with a single hand. The catheter systems can be used for revascularization or treatment of arteries and lumens within the body, and the associated delivery of therapies therein and can include side attachable and over-the-wire components and/or low profile combination catheters to allow for flush and extraction of debris in small or tortuous anatomic pathways.
    Type: Grant
    Filed: May 21, 2002
    Date of Patent: June 29, 2010
    Assignee: Kensey Nash Corporation
    Inventors: John E. Nash, Gregory Walters, Douglas G. Evans, David Szabo, Michael Paris
  • Patent number: 7713261
    Abstract: An attachment tool to facilitate the attachment of one or more catheters or similar elongated instruments to a guide-wire or other elongated guide member, without requiring access to either end of said wire or member. The tool provides repeatable and reliable alignment of components to be attached, while being operated with a single hand. The catheter systems can be used for revascularization or treatment of arteries and lumens within the body, and the associated delivery of therapies therein and can include side attachable and over-the-wire components and/or low profile combination catheters to allow for flush and extraction of debris in small or tortuous anatomic pathways.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: May 11, 2010
    Assignee: Kensey Nash Corporation
    Inventors: John E. Nash, Gregory Walters, Douglas G. Evans, David Szabo, Michael Paris
  • Publication number: 20080108946
    Abstract: An intra-luminal device for the extraction of occlusive or partially occlusive material is disclosed. Said device comprises a novel catheter extension which minimizes cavitation of extracted fluids and also allows the better navigation of tortuous lumens or vasculature.
    Type: Application
    Filed: January 8, 2008
    Publication date: May 8, 2008
    Inventors: John Nash, Gregory Walters
  • Publication number: 20080051720
    Abstract: An attachment tool to facilitate the attachment of one or more catheters or similar elongated instruments to a guide-wire or other elongated guide member, without requiring access to either end of said wire or member. The tool provides repeatable and reliable alignment of components to be attached, while being operated with a single hand. The catheter systems can be used for revascularization or treatment of arteries and lumens within the body, and the associated delivery of therapies therein and can include side attachable and over-the-wire components and/or low profile combination catheters to allow for flush and extraction of debris in small or tortuous anatomic pathways.
    Type: Application
    Filed: October 30, 2007
    Publication date: February 28, 2008
    Applicant: Kensey Nash Corporation
    Inventors: John Nash, Gregory Walters, Douglas Evans, David Szabo, Michael Paris
  • Patent number: 7316678
    Abstract: An intra-luminal device for the extraction of occlusive or partially occlusive material is disclosed. Said device comprises a novel catheter extension which minimizes cavitation of extracted fluids and also allows the better navigation of tortuous lumens or vasculature.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: January 8, 2008
    Assignee: Kensey Nash Corporation
    Inventors: John E. Nash, Gregory Walters
  • Patent number: 6926707
    Abstract: A tubular instrument including a hollow wall portion and a connector arranged to be used with a guide-wire. The guide-wire has a distal end portion and a proximal end portion, the distal end portion of the guide-wire is arranged to be extended to some interior position within the body of a living being, with the proximal end portion of the guide-wire being located outside the being's body. The connector is located at the distal end of the instrument and is arranged to be readily manipulated by a twisting action to connect the instrument onto the guide-wire for sliding movement therealong.
    Type: Grant
    Filed: January 28, 2003
    Date of Patent: August 9, 2005
    Assignee: Kensey Nash Corporation
    Inventors: John E. Nash, William T. Fisher, H. Michael Cunningham, Gregory Walters
  • Patent number: 6872192
    Abstract: An attachment tool to facilitate the attachment of a catheter or similar elongated instrument to a guide-wire or other elongated guide member, without requiring access to either end of said wire or member. Said tool providing repeatable and reliable alignment of components to be attached, while being operated with a single hand. The tool further facilitates the attachment of a plurality of catheters or instruments to a single wire or member.
    Type: Grant
    Filed: August 28, 2002
    Date of Patent: March 29, 2005
    Assignee: Kensey Nash Corporation
    Inventors: John E. Nash, Gregory Walters, Douglas G. Evans, David Szabo, Michael Paris
  • Patent number: 6869417
    Abstract: An attachment tool to facilitate the attachment of a catheter or similar elongated instrument to a guide-wire or other elongated guide member, without requiring access to either end of said wire or member. Said tool providing repeatable and reliable alignment of components to be attached, while being operated with a single hand. Said tool further facilitating the attachment of a plurality of catheters or instruments to a single wire or member.
    Type: Grant
    Filed: September 23, 2002
    Date of Patent: March 22, 2005
    Assignee: Kensey Nash Corporation
    Inventors: Gregory Walters, David Szabo, Dennis Sauro
  • Publication number: 20040193046
    Abstract: An intra-luminal device for the extraction of occlusive or partially occlusive material is disclosed. Said device comprises a novel catheter extension which minimizes cavitation of extracted fluids and also allows the better navigation of tortuous lumens or vasculature.
    Type: Application
    Filed: March 28, 2003
    Publication date: September 30, 2004
    Inventors: John E. Nash, Gregory Walters
  • Publication number: 20040133185
    Abstract: An attachment tool to facilitate the attachment of one or more catheters or similar elongated instruments to a guide-wire or other elongated guide member, without requiring access to either end of said wire or member. The tool provides repeatable and reliable alignment of components to be attached, while being operated with a single hand. The catheter systems can be used for revascularization or treatment of arteries and lumens within the body, and the associated delivery of therapies therein and can include side attachable and over-the-wire components and/or low profile combination catheters to allow for flush and extraction of debris in small or tortuous anatomic pathways.
    Type: Application
    Filed: February 27, 2004
    Publication date: July 8, 2004
    Inventors: John E. Nash, Gregory Walters, Douglas G. Evans, David Szabo, Michael Paris