Patents by Inventor Richard F. Wenstrom

Richard F. Wenstrom 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: 9265519
    Abstract: A tunnel notcher and guidewire delivery device is provided for creating a notch and positioning a guidewire within a bone tunnel. In general, the device includes an elongate member having proximal and distal ends with an inner lumen extending therebetween that is adapted to receive a guidewire. The device also includes a cutting element disposed on a distal portion of the elongate member that is adapted to remove bone within an opening of a bone tunnel. In use, the device 10 can be at least partially positioned within a bone tunnel containing a bone plug, and it can be manipulated to form a notch within or adjacent to an opening of the bone tunnel using the cutting element 18. The device 10 is also effective to deliver a guidewire 16 to the bone tunnel at a location adjacent to the notch.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: February 23, 2016
    Assignee: DePuy Mitek, LLC
    Inventors: Richard F. Wenstrom, Jr., Robert K. Breech, II
  • Patent number: 8349010
    Abstract: A graft fixation system for fixing graft material in a bone tunnel includes an expandable fixation member having a graft receiving eyelet disposed proximate its distal end, opposed bone engaging elements disposed about its periphery, and an expansion plug receiving opening defined in its proximal end. The system also includes an expansion plug having a diameter greater than the diameter of the expansion plug receiving opening so that forceble insertion of the expansion plug into the expansion plug receiving opening causes an expansion of the expandable fixation member driving the opposed bone engaging elements apart so as to fix the bone engaging elements, as well as the graft material, in a bone tunnel.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: January 8, 2013
    Assignee: DePuy Mitek, Inc.
    Inventors: Daniel F. Justin, Richard F. Wenstrom, Jr., Andrew S. Levy
  • Patent number: 8298285
    Abstract: A graft ligament anchor comprises a graft ligament engagement member disposed in an opening in a bone, the graft ligament engagement member being arranged to receive a graft ligament alongside the engagement member, and a locking member for disposition in the opening, and at least in part engageable with the graft ligament engagement member. Movement of the locking member in the opening causes the locking member to urge the engagement member, and the graft ligament therewith, toward a wall of the opening, to secure the graft ligament to the wall of the opening.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: October 30, 2012
    Inventors: Joseph H. Sklar, Harold M. Martins, Richard F. Wenstrom, Jr.
  • Publication number: 20120041442
    Abstract: A tunnel notcher and guidewire delivery device is provided for creating a notch and positioning a guidewire within a bone tunnel. In general, the device includes an elongate member having proximal and distal ends with an inner lumen extending therebetween that is adapted to receive a guidewire. The device also includes a cutting element disposed on a distal portion of the elongate member that is adapted to remove bone within an opening of a bone tunnel. In use, the device 10 can be at least partially positioned within a bone tunnel containing a bone plug, and it can be manipulated to form a notch within or adjacent to an opening of the bone tunnel using the cutting element 18. The device 10 is also effective to deliver a guidewire 16 to the bone tunnel at a location adjacent to the notch.
    Type: Application
    Filed: October 27, 2011
    Publication date: February 16, 2012
    Applicant: DEPUY MITEK, INC.
    Inventors: Richard F. Wenstrom, JR., Robert K. Breech, II
  • Patent number: 8070750
    Abstract: A tunnel notcher and guidewire delivery device is provided for creating a notch and positioning a guidewire within a bone tunnel. In general, the device includes an elongate member having proximal and distal ends with an inner lumen extending therebetween that is adapted to receive a guidewire. The device also includes a cutting element disposed on a distal portion of the elongate member that is adapted to remove bone within an opening of a bone tunnel. In use, the device 10 can be at least partially positioned within a bone tunnel containing a bone plug, and it can be manipulated to form a notch within or adjacent to an opening of the bone tunnel using the cutting element 18. The device 10 is also effective to deliver a guidewire 16 to the bone tunnel at a location adjacent to the notch.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: December 6, 2011
    Assignee: Depuy Mitek, Inc.
    Inventors: Richard F. Wenstrom, Jr., Robert K. Breech, II
  • Patent number: 7998171
    Abstract: A suture anchor having a conical surface and a bore in which an end of an insertion tool is inserted. The insertion end of the insertion tool is made of material having elastic properties. The bore and base of the suture anchor are angled with respect to the central axis of the suture anchor and preferably are parallel to each other. During insertion, the suture anchor is reoriented to fit into the hole, thereby bending the elastic end of the insertion tool. When the suture anchor is within cancellous bone tissue, the elastic properties of the insertion tool deploys the suture anchor to an orientation in which the suture anchor cannot fit through the bone hole, thereby firmly anchoring the suture anchor in the human bone.
    Type: Grant
    Filed: August 2, 2005
    Date of Patent: August 16, 2011
    Assignee: Depuy Mitek, Inc.
    Inventors: Edwin C. Bartlett, Richard F. Wenstrom, Jr.
  • Publication number: 20110112641
    Abstract: A graft fixation system for fixing graft material in a bone tunnel includes an expandable fixation member having a graft receiving eyelet disposed proximate its distal end, opposed bone engaging elements disposed about its periphery, and an expansion plug receiving opening defined in its proximal end. The system also includes an expansion plug having a diameter greater than the diameter of the expansion plug receiving opening so that forcible insertion of the expansion plug into the expansion plug receiving opening causes an expansion of the expandable fixation member driving the opposed bone engaging elements apart so as to fix the bone engaging elements, as well as the graft material, in a bone tunnel.
    Type: Application
    Filed: January 20, 2011
    Publication date: May 12, 2011
    Applicant: DePuy Mitek, Inc.
    Inventors: Daniel F. Justin, Richard F. Wenstrom, JR., Andrew S. Levy
  • Patent number: 7901456
    Abstract: A graft fixation system for fixing graft material in a bone tunnel includes an expandable fixation member having a graft receiving eyelet disposed proximate its distal end, opposed bone engaging elements disposed about its periphery, and an expansion plug receiving opening defined in its proximal end. The system also includes an expansion plug having a diameter greater than the diameter of the expansion plug receiving opening so that forceable insertion of the expansion plug into the expansion plug receiving opening causes an expansion of the expandable fixation member driving the opposed bone engaging elements apart so as to fix the bone engaging elements, as well as the graft material, in a bone tunnel.
    Type: Grant
    Filed: December 9, 2005
    Date of Patent: March 8, 2011
    Assignee: Ethicon, Inc.
    Inventors: Daniel F. Justin, Richard F. Wenstrom, Jr., Andrew S. Levy
  • Publication number: 20100121449
    Abstract: A graft ligament anchor comprises a graft ligament engagement member disposed in an opening in a bone, the graft ligament engagement member being arranged to receive a graft ligament alongside the engagement member, and a locking member for disposition in the opening, and at least in part engageable with the graft ligament engagement member. Movement of the locking member in the opening causes the locking member to urge the engagement member, and the graft ligament therewith, toward a wall of the opening, to secure the graft ligament to the wall of the opening.
    Type: Application
    Filed: August 25, 2009
    Publication date: May 13, 2010
    Inventors: Joseph H. Sklar, Harold M. Martins, Richard F. Wenstrom, JR.
  • Patent number: 7578844
    Abstract: A graft ligament anchor comprises a ligament engagement member in the form of an expandable elastomeric sleeve of substantially cylindrical shape for disposition in an opening in a bone alongside of a portion of a ligament, and a locking member for disposition in the engagement member . Movement of the locking member in the engagement member causes the locking member to expand the engagement member and thereby urge, the ligament toward a wall of the opening so as to secure the ligament to the wall. A method for attaching a graft ligament to a bone comprises providing an opening in the bone, inserting the ligament and a ligament engagement member in the opening, with the ligament disposed alongside the engagement member, inserting a locking member in the engagement member and moving the locking member to engage the engagement member to urge the engagement member, and the ligament, toward a wall of the opening to secure the ligament to the wall.
    Type: Grant
    Filed: July 19, 2005
    Date of Patent: August 25, 2009
    Inventors: Joseph H. Sklar, Harold M. Martins, Richard F. Wenstrom, Jr.
  • Patent number: 7008451
    Abstract: A graft fixation system for fixing graft material in a bone tunnel includes an expandable fixation member having a graft receiving eyelet disposed proximate its distal end, opposed bone engaging elements disposed about its periphery, and an expansion plug receiving opening defined in its proximal end. The system also includes an expansion plug having a diameter greater than the diameter of the expansion plug receiving opening so that forceable insertion of the expansion plug into the expansion plug receiving opening causes an expansion of the expandable fixation member driving the opposed bone engaging elements apart so as to fix the bone engaging elements, as well as the graft material, in a bone tunnel.
    Type: Grant
    Filed: April 4, 2005
    Date of Patent: March 7, 2006
    Assignee: Ethicon, Inc.
    Inventors: Daniel F. Justin, Richard F. Wenstrom, Jr., Andrew S. Levy
  • Patent number: 6932841
    Abstract: A graft ligament anchor comprises a graft ligament engagement member disposed in an opening in a bone, the graft ligament engagement member being arranged to receive a graft ligament alongside the engagement member, and a locking member for disposition in the opening, and at least in part engageable with the graft ligament engagement member. Movement of the locking member in the opening causes the locking member to urge the engagement member, and the graft ligament therewith, toward a wall of the opening, to secure the graft ligament to the wall of the opening.
    Type: Grant
    Filed: September 16, 2002
    Date of Patent: August 23, 2005
    Inventors: Joseph H. Sklar, Harold M. Martins, Richard F. Wenstrom, Jr.
  • Patent number: 6923823
    Abstract: A suture anchor having a conical surface and a bore in which an end of an insertion tool is inserted. The insertion end of the insertion tool is made of material having elastic properties. The bore and base of the suture anchor are angled with respect to the central axis of the suture anchor and preferably are parallel to each other. During insertion, the suture anchor is reoriented to fit into the hole, thereby bending the elastic end of the insertion tool. When the suture anchor is within cancellous bone tissue, the elastic properties of the insertion tool deploys the suture anchor to an orientation in which the suture anchor cannot fit through the bone hole, thereby firmly anchoring the suture anchor in the human bone.
    Type: Grant
    Filed: November 9, 2000
    Date of Patent: August 2, 2005
    Inventors: Edwin C. Bartlett, Richard F. Wenstrom, Jr.
  • Patent number: 6887271
    Abstract: A graft fixation system for fixing graft material in a bone tunnel includes an expandable fixation member having a graft receiving eyelet disposed proximate its distal end, opposed bone engaging elements disposed about its periphery, and an expansion plug receiving opening defined in its proximal end. The system also includes an expansion plug having a diameter greater than the diameter of the expansion plug receiving opening so that forceable insertion of the expansion plug into the expansion plug receiving opening causes an expansion of the expandable fixation member driving the opposed bone engaging elements apart so as to fix the bone engaging elements, as well as the graft material, in a bone tunnel.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: May 3, 2005
    Assignee: Ethicon, Inc.
    Inventors: Daniel F. Justin, Richard F. Wenstrom, Jr., Andrew S. Levy
  • Patent number: 6814741
    Abstract: A suture buttress comprises a hollow tube having an outer surface and opposed ends. The suture buttress may further include an external securing element, such as a securing tab suitable to retain the suture buttress within a bone tunnel. The suture buttress may also include a resilient flange disposed on one end of the suture buttress.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: November 9, 2004
    Assignee: Ethicon, Inc.
    Inventors: Steven M. Bowman, Richard F. Wenstrom, Jr., Mark Steckel, Edward V. Craig
  • Patent number: 6767037
    Abstract: The present invention provides a sliding and locking knot that does not require an additional half hitch to lock and suture retaining structures having such a knot. The sliding and locking knot has a low knot profile suitable for use in surgical areas with low clearance and to avoid interference with surrounding tissue. Additionally, the sliding and locking knot maintains suture strength and is easy to form. Also provided are methods for anchoring tissue to a bony structure using the bone anchor and sliding and locking knot of the present invention.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: July 27, 2004
    Assignee: DePuy Mitek, Inc.
    Inventor: Richard F. Wenstrom, Jr.
  • Patent number: 6620166
    Abstract: A suture buttress system has a suture retriever and a suture buttress. The suture retriever includes a handle portion with an elongate member extending therefrom and having an outer surface and a distal end that includes a suture retaining element. The suture buttress comprises a resilient hollow tube having an outer surface and opposed ends. The suture buttress is removably and replaceably disposed on the elongate member. The suture buttress may further include an external fastening element suitable to retain the suture buttress within a bone tunnel. A suture buttress deployment tool may also be provided.
    Type: Grant
    Filed: January 9, 1998
    Date of Patent: September 16, 2003
    Assignee: Ethicon, Inc.
    Inventors: Richard F. Wenstrom, Jr., Edward V. Craig
  • Publication number: 20030144735
    Abstract: A graft ligament anchor comprises a graft ligament engagement member disposed in an opening in a bone, the graft ligament engagement member being arranged to receive a graft ligament alongside the engagement member, and a locking member for disposition in the opening, and at least in part engageable with the graft ligament engagement member. Movement of the locking member in the opening causes the locking member to urge the engagement member, and the graft ligament therewith, toward a wall of the opening, to secure the graft ligament to the wall of the opening.
    Type: Application
    Filed: September 16, 2002
    Publication date: July 31, 2003
    Inventors: Joseph H. Sklar, Harold M. Martins, Richard F. Wenstrom
  • Publication number: 20030065390
    Abstract: A graft fixation system for fixing graft material in a bone tunnel includes an expandable fixation member having a graft receiving eyelet disposed proximate its distal end, opposed bone engaging elements disposed about its periphery, and an expansion plug receiving opening defined in its proximal end. The system also includes an expansion plug having a diameter greater than the diameter of the expansion plug receiving opening so that forceable insertion of the expansion plug into the expansion plug receiving opening causes an expansion of the expandable fixation member driving the opposed bone engaging elements apart so as to fix the bone engaging elements, as well as the graft material, in a bone tunnel.
    Type: Application
    Filed: September 28, 2001
    Publication date: April 3, 2003
    Inventors: Daniel F. Justin, Richard F. Wenstrom, Andrew S. Levy
  • Publication number: 20030060835
    Abstract: The present invention provides a sliding and locking knot that does not require an additional half hitch to lock and suture retaining structures having such a knot. The sliding and locking knot has a low knot profile suitable for use in surgical areas with low clearance and to avoid interference with surrounding tissue. Additionally, the sliding and locking knot maintains suture strength and is easy to form. Also provided are methods for anchoring tissue to a bony structure using the bone anchor and sliding and locking knot of the present invention.
    Type: Application
    Filed: September 27, 2001
    Publication date: March 27, 2003
    Inventor: Richard F. Wenstrom