Patents by Inventor Wamis Singhatat

Wamis Singhatat 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: 7678138
    Abstract: In one aspect of the invention, a cross-pin includes a distal portion having an axis, a distal end, and a proximal end. A proximal cylindrical portion includes a threaded exterior surface. A junction may be interposed between the distal and proximal portions to enable the proximal portion to rotate relative to the distal portion. In another aspect of the invention, a graft retaining system for retaining a graft in a bone tunnel includes a graft block having a proximal end and a distal end, and sized to fit within the bone tunnel. A cross pin transverse to the bone tunnel attaches the graft block adjacent the tunnel. An intermediate connector is attached to the graft block at a point distal to the cross pin and connects the graft to the graft block so as to apply compressive forces to the graft block.
    Type: Grant
    Filed: May 15, 2003
    Date of Patent: March 16, 2010
    Assignee: Linvatec Corporation
    Inventors: Steven E. Fitts, Wamis Singhatat, Drew Powell Amery
  • Patent number: 7357803
    Abstract: The present invention provides a graft retaining implant for retaining a graft in a bone tunnel formed in a bone. Instruments and methods are also provided for use with the graft retaining implant.
    Type: Grant
    Filed: November 3, 2003
    Date of Patent: April 15, 2008
    Assignee: Linvatec Corporation
    Inventor: Wamis Singhatat
  • Patent number: 7338492
    Abstract: A two piece graft fixation arrangement includes a graft block engageable with a graft and a transverse member engageable with the graft block to fix the graft block in a bone tunnel. Instruments and methods are presented for installing a graft in a bone tunnel and anchoring the graft with a transverse member placed through a transverse bore intersecting the bone tunnel.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: March 4, 2008
    Assignee: Linvatec Corporation
    Inventors: Wamis Singhatat, Steven E. Fitts
  • Patent number: 7270666
    Abstract: A two piece graft fixation arrangement includes a graft block engageable with a graft and a transverse member engageable with the graft block to fix the graft block in a bone tunnel. Instruments and methods are presented for installing a graft in a bone tunnel and anchoring the graft with a transverse member placed through a transverse bore intersecting the bone tunnel.
    Type: Grant
    Filed: July 14, 2004
    Date of Patent: September 18, 2007
    Assignee: Linvatec Corporation
    Inventors: Guiseppe Lombardo, Wamis Singhatat, P. Ercell Sherman, Drew Powell Amery, Steve Bishop
  • Patent number: 7175632
    Abstract: A two piece graft fixation arrangement includes a graft block engageable with a graft and a transverse member engageable with the graft block to fix the graft block in a bone tunnel. Instruments and methods are presented for installing a graft in a bone tunnel and anchoring the graft with a transverse member placed through a transverse bore intersecting the bone tunnel.
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: February 13, 2007
    Assignee: Linvatec Corporation
    Inventors: Wamis Singhatat, Steven E. Fitts, Giuseppe Lombardo
  • Publication number: 20060276802
    Abstract: An instrument for inserting an elongated hydrogel prosthesis into an intervertebral disc includes an insertion cannula that is inserted through the annulus fibrosus of an intervertebral disc to provide access to the nucleus region of the disc, an elongated hydrogel prosthesis packaged within a tubular container adapted to be coupled to a proximal end of the insertion cannula, and a source of fluid pressure adapted to be coupled to a proximal end of the tubular container. Auxiliary instruments for use in convenient insertion of the insertion cannula through the nucleus pulposus and providing for a complete and controlled passage of the hydrogel prosthesis through the insertion cannula are provided in a kit with the insertion cannula.
    Type: Application
    Filed: March 29, 2006
    Publication date: December 7, 2006
    Inventors: Edward Vresilovic, Michael Keane, Thomas Schaer, Amy Arthur, Wamis Singhatat
  • Publication number: 20050075641
    Abstract: An osteotomy system includes a wedge implant and an osteotomy guide.
    Type: Application
    Filed: October 4, 2004
    Publication date: April 7, 2005
    Inventors: Wamis Singhatat, Giuseppe Lombardo, Drew Amery
  • Publication number: 20050033301
    Abstract: A two piece graft fixation arrangement includes a graft block engageable with a graft and a transverse member engageable with the graft block to fix the graft block in a bone tunnel. Instruments and methods are presented for installing a graft in a bone tunnel and anchoring the graft with a transverse member placed through a transverse bore intersecting the bone tunnel.
    Type: Application
    Filed: July 14, 2004
    Publication date: February 10, 2005
    Inventors: Guiseppe Lombardo, Wamis Singhatat, P. Sherman, Drew Amery, Steve Bishop
  • Publication number: 20040176768
    Abstract: The present invention provides a graft retaining implant for retaining a graft in a bone tunnel formed in a bone. Instruments and methods are also provided for use with the graft retaining implant.
    Type: Application
    Filed: November 3, 2003
    Publication date: September 9, 2004
    Inventor: Wamis Singhatat
  • Publication number: 20040153076
    Abstract: A graft retaining implant is provided for retaining a graft in a bone tunnel. Instruments and methods are also provided for use with the graft retaining implant.
    Type: Application
    Filed: October 28, 2003
    Publication date: August 5, 2004
    Inventors: Wamis Singhatat, Hugh S. West
  • Publication number: 20040087953
    Abstract: A two piece graft fixation arrangement includes a graft block engageable with a graft and a transverse member engageable with the graft block to fix the graft block in a bone tunnel. Instruments and methods are presented for installing a graft in a bone tunnel and anchoring the graft with a transverse member placed through a transverse bore intersecting the bone tunnel.
    Type: Application
    Filed: October 24, 2003
    Publication date: May 6, 2004
    Inventors: Wamis Singhatat, David Caborn, Steven E. Fitts
  • Patent number: 6716224
    Abstract: An instrument and method for tying two suture ends into a knot. A tubular outer member is provided with a transverse slot for capturing a length of one of the suture ends therein. A slidable inner member has a pair of diametrically opposed, suture engaging fingers for pushing the captured suture from the tubular member and for rotating it to form a loop between the fingers. The other suture end is passed through the loop to create a knot. The instrument is then repositioned and used as a knot pusher so the knot may be tightened and properly positioned. Successive use of the instrument to create successive loops and knots ultimately results in a final knot securing the suture ends.
    Type: Grant
    Filed: August 22, 2001
    Date of Patent: April 6, 2004
    Assignee: Linvatec Corporation
    Inventor: Wamis Singhatat
  • Publication number: 20040049195
    Abstract: A two piece graft fixation arrangement includes a graft block engageable with a graft and a transverse member engageable with the graft block to fix the graft block in a bone tunnel. Instruments and methods are presented for installing a graft in a bone tunnel and anchoring the graft with a transverse member placed through a transverse bore intersecting the bone tunnel.
    Type: Application
    Filed: September 9, 2003
    Publication date: March 11, 2004
    Inventors: Wamis Singhatat, Steven E. Fitts, Giuseppe Lombardo
  • Publication number: 20030216780
    Abstract: A two piece graft fixation arrangement includes a graft block engageable with a graft and a transverse member engageable with the graft block to fix the graft block in a bone tunnel.
    Type: Application
    Filed: May 15, 2003
    Publication date: November 20, 2003
    Inventors: Steven E. Fitts, Wamis Singhatat, Drew Powell Amery
  • Publication number: 20020049458
    Abstract: An instrument and method for tying two suture ends into a knot. A tubular outer member is provided with a transverse slot for capturing a length of one of the suture ends therein. A slidable inner member has a pair of diametrically opposed, suture engaging fingers for pushing the captured suture from the tubular member and for rotating it to form a loop between the fingers. The other suture end is passed through the loop to create a knot. The instrument is then repositioned and used as a knot pusher so the knot may be tightened and properly positioned. Successive use of the instrument to create successive loops and knots ultimately results in a final knot securing the suture ends.
    Type: Application
    Filed: August 22, 2001
    Publication date: April 25, 2002
    Inventor: Wamis Singhatat