Patents by Inventor Christopher Ramsay

Christopher Ramsay 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: 20140277164
    Abstract: Bone anchors and surgical instruments (e.g., bone taps, drivers, etc.) are disclosed herein that include integrated guide tips. Use of these anchors or instruments can eliminate one or more of the steps in a conventional bone anchor installation procedure, improving surgical efficiency and safety. For example, a surgical instrument can include a guide projection configured for insertion through a cannulation formed in a bone anchor when the surgical instrument is coupled to the bone anchor. The surgical instrument can also include various mechanisms for adjusting the position of the guide projection relative to the bone anchor. The guide projection can replace the needle, stylet, and guidewire used in typical insertion procedures. The bone anchor can also include integrated tapping features to eliminate the need for a separate bone tap instrument. Thus, in some embodiments, targeting, tapping, and driving the bone anchor can be performed in a single step.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: DEPUY SYNTHES PRODUCTS, LLC
    Inventors: Christopher Ramsay, John DiVincenzo, Nicholas Pavento
  • Patent number: 8828007
    Abstract: Methods and devices are provided for facilitating delivery and implanting of a bone anchor into bone. In one exemplary embodiment, a bone anchor extension is provided for coupling to a bone anchor to facilitate delivery and implanting of the bone anchor in bone. The bone anchor extension can have a generally elongate configuration that allows it to extend from a skin incision in a patient to a site proximate a patient's spine, and it can include a lumen extending therethrough between proximal and distal ends thereof. A distal end of the bone anchor extension can be adapted to engage a bone anchor, such as a bone screw. Various techniques are provided for locking the distal end of the bone anchor extension into engagement with a bone anchor.
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: September 9, 2014
    Assignee: DePuy Synthes Products, LLC
    Inventors: Shawn D. Stad, Christopher Ramsay, Brian Fergus Murphy
  • Patent number: 8821394
    Abstract: Methods and devices are provided for retracting tissue. In one exemplary embodiment, a retractor is provided that includes a base, a plurality of blades extending from the base, and an actuator coupled to the base and operatively connected to the blades. The actuator can be configured to be actuated to move the blades relative to the base, thereby allowing the blades to retract tissue. The actuator can be self-locking so as to allow the blades to be freely movable within their entire range of motion relative to the base through actuation of the actuator without using another mechanism to lock the blades in a fixed position and to unlock the blades from the fixed position. The retractor can be formed from one or more radiolucent materials.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: September 2, 2014
    Assignee: DePuy Synthes Products, LLC
    Inventors: J. Riley Hawkins, Christopher Ramsay
  • Publication number: 20140058515
    Abstract: An interbody spacer comprising a series of stacked walls connected by a common base, wherein the spacer collapses when pressed into an access delivery tube. During insertion, the walls can flex as a unit, like bending a deck of cards, to traverse bends in the access tube. Upon distally exiting the portal of the access delivery tube, the walls track apart (like spreading fingers) to create a wide base of support for the vertebral body endplate. A graft delivery device that uses a conveyor belt-type approach to deliver bone graft from the device to a location in a patient. In some embodiments, the conveyor-belt is manually actuated.
    Type: Application
    Filed: March 12, 2013
    Publication date: February 27, 2014
    Inventors: John Riley Hawkins, Nicholas Pavento, Christopher Ramsay, Sean Selover, Kevin Lee
  • Publication number: 20140018921
    Abstract: An intervertebral implant having an endplate that can be slidably expanded following its placement in the intervertebral space. The endplate comprises a pair of planks that are slidably received within respective recesses of a base portion of the endplate. During insertion of the implant into the intervertebral space, the planks are set in a contracted position within respective recesses of a base portion of the endplate. This provides the implant with a relatively small profile that is suitable for MIS procedures. Once the implant has been inserted, the planks are slid outward from the recesses to an expanded position that increases the footprint of the implant endplate. This expansion increases the stability of the implant.
    Type: Application
    Filed: September 17, 2013
    Publication date: January 16, 2014
    Inventors: Shawn Stad, Christopher Ramsay
  • Patent number: 8628534
    Abstract: An ultrasonic surgical cutting method and apparatus is provided wherein the method and apparatus allows for the cutting of bone from within a hollow pathway such that a cutter associated with the ultrasonic method and apparatus remains sufficiently cool to prevent necrosis of the bone being cut. Furthermore the ultrasonic device and method can be employed in the cutting of soft tissue, wherein a cooled cutter is used to prevent the sticking of soft tissue to the cutting blade of the device during use.
    Type: Grant
    Filed: February 2, 2005
    Date of Patent: January 14, 2014
    Assignee: DePuy Synthes Products, LLC
    Inventors: Bryan S. Jones, Christopher Ramsay
  • Publication number: 20130261402
    Abstract: Methods and devices are provided for retracting tissue. In one exemplary embodiment, a retractor is provided that includes a base, a plurality of blades extending from the base, and an actuator coupled to the base and operatively connected to the blades. The actuator can be configured to be actuated to move the blades relative to the base, thereby allowing the blades to retract tissue. The actuator can be self-locking so as to allow the blades to be freely movable within their entire range of motion relative to the base through actuation of the actuator without using another mechanism to lock the blades in a fixed position and to unlock the blades from the fixed position. The retractor can be formed from one or more radiolucent materials.
    Type: Application
    Filed: March 30, 2012
    Publication date: October 3, 2013
    Applicant: DePuy Spine, Inc.
    Inventors: J. Riley Hawkins, Christopher Ramsay
  • Publication number: 20130261401
    Abstract: Methods and devices are provided for retracting tissue. In one exemplary embodiment, a retractor is provided that includes a base and a plurality of blades configured to removably and replaceably mate to the base. One or more of the plurality of blades can be configured to mate to the base in one of a plurality of available positions. In use, one or more adjustment mechanisms can be actuated to move one or more of the blades, thereby forming a pathway through tissue. The retractor can be formed from one or more radiolucent materials.
    Type: Application
    Filed: March 30, 2012
    Publication date: October 3, 2013
    Applicant: DePuy Spine, Inc.
    Inventors: J. Riley Hawkins, Christopher Ramsay
  • Publication number: 20130238006
    Abstract: Surgical curettes or rakes with cutting edges conform or deflect to allow for contouring that follows the bony anatomy. The cutting tips can be pre-sterile, disposable and made from flexible materials including metals and polymers. The disposable tips ensure that a sharp cutting edge is exposed to the endplate for each procedure. The tips can also be adjusted to change the size of the cutting surface and window for retaining shaved disc material. The tips can pivot to provide for a self adjusting angle that allows the cutting edge to have full contact with the endplate at various angles like the pivot on a disposable razor blade.
    Type: Application
    Filed: March 6, 2012
    Publication date: September 12, 2013
    Inventors: Michael J. O'Neil, Jonathan Bellas, John Riley Hawkins, Cody Cranson, Christopher Ramsay
  • Publication number: 20130238037
    Abstract: A system and device for manipulating a spinal construct is provided. For example, the manipulation device can include a drive member to be disposed within a first surgical sleeve extending from a first vertebra, and a coupling member positioned adjacent a second surgical sleeve. In one embodiment, at least one of the drive member and the coupling member can be releasably engaged to an actuation mechanism. In one aspect, the actuation mechanism can include a floating and/or auto-locking pivot point thereby allowing a user to quickly and easily position the manipulation device relative to the adjacent surgical sleeves. Additionally, a method of manipulating spinal constructs is also provided.
    Type: Application
    Filed: April 24, 2013
    Publication date: September 12, 2013
    Applicant: DePuy Spine, Inc.
    Inventors: Shawn D. Stad, Garth G. Baker, Tony Tannoury, Paul G. Beaudoin, Christopher Ramsay
  • Patent number: 8444649
    Abstract: A system and device for manipulating a spinal construct is provided. For example, the manipulation device can include a drive member to be disposed within a first surgical sleeve extending from a first vertebra, and a coupling member positioned adjacent a second surgical sleeve. In one embodiment, at least one of the drive member and the coupling member can be releasably engaged to an actuation mechanism. In one aspect, the actuation mechanism can include a floating and/or auto-locking pivot point thereby allowing a user to quickly and easily position the manipulation device relative to the adjacent surgical sleeves. Additionally, a method of manipulating spinal constructs is also provided.
    Type: Grant
    Filed: July 7, 2008
    Date of Patent: May 21, 2013
    Assignee: DePuy Spine, Inc.
    Inventors: Shawn D. Stad, Garth G. Baker, Tony Tannoury, Paul G. Beaudoin, Christopher Ramsay
  • Publication number: 20130030471
    Abstract: A device intended for the treatment of spinal stenosis. This device is an inter-spinous spacer that is introduced through a single posterior incision. It uses a single piece insertion technique with a unilateral approach. The surgeon does not need to access the opposite side of the spinous process. It allows the user infinite adjustability in distraction height with a single locking mechanism.
    Type: Application
    Filed: July 27, 2012
    Publication date: January 31, 2013
    Inventors: Christopher Ramsay, Christine Rusbarsky, Katherine Selover, Glen Presbrey, Hassan Serhan
  • Patent number: 8246656
    Abstract: A device intended for the treatment of spinal stenosis. This device is an inter-spinous spacer that is introduced through a single posterior incision. It uses a single piece insertion technique with a unilateral approach. The surgeon does not need to access the opposite side of the spinous process. It allows the user infinite adjustability in distraction height with a single locking mechanism.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: August 21, 2012
    Assignee: DePuy Spine, Inc.
    Inventors: Christopher Ramsay, Christine Rusbarsky, Katherine Selover, Glen Presbrey
  • Patent number: 8137401
    Abstract: An intervertebral implant having an endplate that can be slidably expanded following its placement in the intervertebral space.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: March 20, 2012
    Assignee: DePuy Spine, Inc.
    Inventors: Shawn Stad, Christopher Ramsay
  • Publication number: 20120041561
    Abstract: An intervertebral implant having an endplate that can be slidably expanded following its placement in the intervertebral space.
    Type: Application
    Filed: October 26, 2011
    Publication date: February 16, 2012
    Inventors: Shawn Stad, Christopher Ramsay
  • Publication number: 20110208243
    Abstract: A device intended for the treatment of spinal stenosis. This device is an inter-spinous spacer that is introduced through a single posterior incision. It uses a single piece insertion technique with a unilateral approach. The surgeon does not need to access the opposite side of the spinous process. It allows the user infinite adjustability in distraction height with a single locking mechanism.
    Type: Application
    Filed: February 25, 2010
    Publication date: August 25, 2011
    Inventors: Christopher Ramsay, Christine Rusbarsky, Katherine Selover
  • Publication number: 20110137350
    Abstract: Methods and devices are provided for facilitating delivery and implanting of a bone anchor into bone. In one exemplary embodiment, a bone anchor extension is provided for coupling to a bone anchor to facilitate delivery and implanting of the bone anchor in bone. The bone anchor extension can have a generally elongate configuration that allows it to extend from a skin incision in a patient to a site proximate a patient's spine, and it can include a lumen extending therethrough between proximal and distal ends thereof. A distal end of the bone anchor extension can be adapted to engage a bone anchor, such as a bone screw. Various techniques are provided for locking the distal end of the bone anchor extension into engagement with a bone anchor.
    Type: Application
    Filed: February 15, 2011
    Publication date: June 9, 2011
    Applicant: DEPUY SPINE, INC.
    Inventors: Shawn D. Stad, Christopher Ramsay, Brian Fergus Murphy
  • Patent number: 7942908
    Abstract: A method and apparatus for providing an adjustable length surgical implant is provided, wherein the surgical implant is readily adjustable by a surgeon using a surgical tool sized for use with the surgical implant. Adjustment of the surgical implant further requires a small incision through the skin prior to the adjustment of the length of the implant, such that the potential for infection is greatly reduces and the associated trauma of surgery is lessened for the patient.
    Type: Grant
    Filed: February 2, 2005
    Date of Patent: May 17, 2011
    Assignee: DePuy Spine, Inc.
    Inventors: Ronald Sacher, Christopher Ramsay, Richard Techiera
  • Patent number: 7927357
    Abstract: A method and apparatus for providing an adjustable length surgical implant is provided, wherein the surgical implant is readily adjustable by a surgeon using a surgical tool sized for use with the surgical implant. Adjustment of the surgical implant further requires a small incision through the skin prior to the adjustment of the length of the implant, such that the potential for infection is greatly reduces and the associated trauma of surgery is lessened for the patient.
    Type: Grant
    Filed: February 2, 2005
    Date of Patent: April 19, 2011
    Assignee: DePuy Spine, Inc.
    Inventors: Ronald Sacher, Christopher Ramsay, Richard Techiera
  • Patent number: 7918858
    Abstract: Methods and devices are provided for facilitating delivery and implanting of a bone anchor into bone. In one exemplary embodiment, a bone anchor extension is provided for coupling to a bone anchor to facilitate delivery and implanting of the bone anchor in bone. The bone anchor extension can have a generally elongate configuration that allows it to extend from a skin incision in a patient to a site proximate a patient's spine, and it can include a lumen extending therethrough between proximal and distal ends thereof. A distal end of the bone anchor extension can be adapted to engage a bone anchor, such as a bone screw. Various techniques are provided for locking the distal end of the bone anchor extension into engagement with a bone anchor.
    Type: Grant
    Filed: October 6, 2006
    Date of Patent: April 5, 2011
    Assignee: DePuy Spine, Inc.
    Inventors: Shawn D. Stad, Christopher Ramsay, Brian Fergus Murphy