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).
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Publication number: 20200170695Abstract: Articulating implant connectors and related methods are disclosed herein. Exemplary connectors can include first and second bodies that are rotatable relative to one another about a rotation axis and selectively lockable to resist or prevent such rotation. Each of the bodies can be configured to couple to a rod or other fixation component, and the connector can be used to lock first and second rods together even when the rods are obliquely angled with respect to one another.Type: ApplicationFiled: February 4, 2020Publication date: June 4, 2020Inventors: Kevin Lee, Christopher Ramsay, Francisco Amaral, Carl Livorsi
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Publication number: 20200085473Abstract: Implant connectors and related methods are disclosed herein. In some embodiments, a connector can include a low-profile portion to facilitate use of the connector in surgical applications where space is limited. In some embodiments, a connector can include a biased rod-pusher to allow the connector to “snap” onto a rod and/or to “drag” against the rod, e.g., for provisional positioning of the connector prior to locking.Type: ApplicationFiled: November 19, 2019Publication date: March 19, 2020Applicant: Medos International SarlInventors: Kevin Lee, Christopher Ramsay, J. Riley Hawkins
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Publication number: 20200054377Abstract: Longitudinally-adjustable bone anchors and related methods are disclosed herein. The ability to adjust a bone anchor longitudinally can allow the surgeon to bring an implanted bone anchor up to the rod instead of or in addition to bringing the rod down to the bone anchor, which can simplify or eliminate the rod contouring step and reduce or eliminate reduction forces. For example, the surgeon can use a pre-bent rod or put “ideal contours” into a rod, lay the rod across a series of bone anchors, and adjust each bone anchor longitudinally to meet the rod. As another example, coarse adjustment of the fixation system can be achieved by contouring the rod and then fine adjustments can be made by bringing each bone anchor up or down to the rod. Various adjustment mechanisms are disclosed, including bone anchors with telescoping portions and bone anchors with risers or spacers.Type: ApplicationFiled: October 24, 2019Publication date: February 20, 2020Inventors: Heiko Koller, J. Riley Hawkins, Christopher Ramsay
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Patent number: 10561454Abstract: Articulating implant connectors and related methods are disclosed herein. Exemplary connectors can include first and second bodies that are rotatable relative to one another about a rotation axis and selectively lockable to resist or prevent such rotation. Each of the bodies can be configured to couple to a rod or other fixation component, and the connector can be used to lock first and second rods together even when the rods are obliquely angled with respect to one another.Type: GrantFiled: March 28, 2017Date of Patent: February 18, 2020Assignee: Medos International SarlInventors: Kevin Lee, Christopher Ramsay, Francisco Amaral, Carl Livorsi
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Publication number: 20200030007Abstract: Bone anchor assemblies are disclosed herein that can provide for improved fixation as compared with traditional bone anchor assemblies. An exemplary assembly can include a bracket or wing that extends down from the receiver member and accommodates one or more auxiliary bone anchors that augment the fixation of the assembly's primary bone anchor. Another exemplary assembly can include a plate that is seated between the receiver member and the rod and accommodates one or more auxiliary bone anchors that augment the fixation of the assembly's primary bone anchor. Another exemplary assembly can include a hook that extends out from the receiver member to hook onto an anatomical structure or another implant to augment the fixation of the assembly's primary bone anchor. Surgical methods using the bone anchor assemblies described herein are also disclosed.Type: ApplicationFiled: September 24, 2019Publication date: January 30, 2020Applicant: Medos International SarlInventors: J. Riley Hawkins, Albert Montello, Christopher Ramsay, Kevin Lee, Joseph Peterson, Ben Johnston, Heiko Koller, Todd Albert, Christopher Ames, Brad Currier, Claudius Thome, Masashi Neo
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Patent number: 10517647Abstract: Implant connectors and related methods are disclosed herein. In some embodiments, a connector can include a low-profile portion to facilitate use of the connector in surgical applications where space is limited. In some embodiments, a connector can include a biased rod-pusher to allow the connector to “snap” onto a rod and/or to “drag” against the rod, e.g., for provisional positioning of the connector prior to locking.Type: GrantFiled: May 18, 2016Date of Patent: December 31, 2019Assignee: Medos International SarlInventors: Kevin Lee, Christopher Ramsay, J. Riley Hawkins
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Publication number: 20190365434Abstract: 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: ApplicationFiled: August 16, 2019Publication date: December 5, 2019Applicant: DePuy Synthes Products, Inc.Inventors: Christopher Ramsay, John DiVincenzo, Nicholas Pavento
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Publication number: 20190365432Abstract: Implant connectors and related methods are disclosed herein. In some embodiments, a connector can include a low-profile portion to facilitate use of the connector in surgical applications where space is limited. In some embodiments, a connector can include a biased rod-pusher to allow the connector to “snap” onto a rod and/or to “drag” against the rod, e.g., for provisional positioning of the connector prior to locking.Type: ApplicationFiled: June 17, 2019Publication date: December 5, 2019Applicant: Medos International SarlInventors: Kevin Lee, Christopher Ramsay, J. Riley Hawkins
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Patent number: 10485596Abstract: Longitudinally-adjustable bone anchors and related methods are disclosed herein. The ability to adjust a bone anchor longitudinally can allow the surgeon to bring an implanted bone anchor up to the rod instead of or in addition to bringing the rod down to the bone anchor, which can simplify or eliminate the rod contouring step and reduce or eliminate reduction forces. For example, the surgeon can use a pre-bent rod or put “ideal contours” into a rod, lay the rod across a series of bone anchors, and adjust each bone anchor longitudinally to meet the rod. As another example, coarse adjustment of the fixation system can be achieved by contouring the rod and then fine adjustments can be made by bringing each bone anchor up or down to the rod. Various adjustment mechanisms are disclosed, including bone anchors with telescoping portions and bone anchors with risers or spacers.Type: GrantFiled: December 6, 2016Date of Patent: November 26, 2019Assignee: Medos International SàrlInventors: Heiko Koller, J. Riley Hawkins, Christopher Ramsay
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Publication number: 20190290331Abstract: Bone anchor assemblies are disclosed herein that can provide for improved fixation as compared with traditional bone anchor assemblies. An exemplary assembly can include a bracket or wing that extends down from the receiver member. The distal portion of the wing can define a bone anchor opening through which one or more auxiliary bone anchors can be disposed to augment the fixation of the assembly's primary bone anchor. A distal surface of the distal portion of the wing can be obliquely angled relative to a proximal-distal axis of the spanning portion to face one of a caudal direction or a cephalad direction. A distal surface of the distal portion of the wing can be obliquely angled relative to the proximal-distal axis of the spanning portion to face one of a medial direction or a lateral direction. Surgical methods using the bone anchor assemblies described herein are also disclosed.Type: ApplicationFiled: March 20, 2018Publication date: September 26, 2019Inventors: Kevin Lee, Mark Hall, Christopher Ramsay, John Riley Hawkins
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Patent number: 10413339Abstract: 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: GrantFiled: January 19, 2016Date of Patent: September 17, 2019Assignee: DePuy Synthes Products, Inc.Inventors: Christopher Ramsay, John DiVincenzo, Nicholas Pavento
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Publication number: 20190209153Abstract: An expandable trial can include an inferior portion, a superior portion, and a middle expanding portion as well as load cells for monitoring the load on the trial. The trial may also include recesses on its lateral sides to provide spacing to accommodate a disc removal tool so tissue can be cleared monitoring load. In addition, neural foramen spacing can be monitoring to provide information about how much neural release has been achieved as the disc is cleaned and the spine is positioned and repositioned.Type: ApplicationFiled: March 15, 2019Publication date: July 11, 2019Inventors: Michael J. O'Neil, Roman Lomeli, John Riley Hawkins, Christopher Ramsay, Zoher Bootwala, Jennifer DiPietro, John Griffin
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Patent number: 10321939Abstract: Implant connectors and related methods are disclosed herein. In some embodiments, a connector can include a low-profile portion to facilitate use of the connector in surgical applications where space is limited. In some embodiments, a connector can include a biased rod-pusher to allow the connector to “snap” onto a rod and/or to “drag” against the rod, e.g., for provisional positioning of the connector prior to locking.Type: GrantFiled: October 4, 2016Date of Patent: June 18, 2019Assignee: Medos International SarlInventors: Kevin Lee, Christopher Ramsay, J. Riley Hawkins
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Patent number: 10271832Abstract: An expandable trial can include an inferior portion, a superior portion, and a middle expanding portion as well as load cells for monitoring the load on the trial. The trial may also include recesses on its lateral sides to provide spacing to accommodate a disc removal tool so tissue can be cleared monitoring load. In addition, neural foramen spacing can be monitoring to provide information about how much neural release has been achieved as the disc is cleaned and the spine is positioned and repositioned.Type: GrantFiled: September 8, 2016Date of Patent: April 30, 2019Assignee: DePuy Synthes Products, Inc.Inventors: Michael J. O'Neil, Roman Lomeli, John Riley Hawkins, Christopher Ramsay, Zoher Bootwala, Jennifer DiPietro, John Griffin
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Publication number: 20180325569Abstract: Bone anchors and related methods are disclosed herein. In some embodiments, a bone anchor can include a drag interface. Exemplary drag interfaces include (i) friction between a shank and a bushing, (ii) friction between a bushing and a drag ring, (iii) friction generated by a biased saddle, and (iv) combinations of the above. The drag interface can help maintain the relative position between a receiver member and a shank of the bone anchor prior to locking the bone anchor, preventing unintended movement while still allowing free movement when intended by the user. In some embodiments, a bone anchor can include over-rotation blocking features, such as a groove, lip, or protrusion formed on a bushing of the bone anchor. Various other bone anchor features are also disclosed, including high aspect ratio drag rings and compressible drag posts.Type: ApplicationFiled: May 10, 2017Publication date: November 15, 2018Inventors: Christopher Ramsay, J. Riley Hawkins, Albert Montello
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Publication number: 20180280063Abstract: Articulating implant connectors and related methods are disclosed herein. Exemplary connectors can include first and second bodies that are rotatable relative to one another about a rotation axis and selectively lockable to resist or prevent such rotation. Each of the bodies can be configured to couple to a rod or other fixation component, and the connector can be used to lock first and second rods together even when the rods are obliquely angled with respect to one another.Type: ApplicationFiled: March 20, 2018Publication date: October 4, 2018Inventors: Kevin Lee, Christopher Ramsay, Francisco Amaral, Carl Livorsi, Aubrey Ortiz, Mark Hall, Robert Carruth
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Publication number: 20180280062Abstract: Articulating implant connectors and related methods are disclosed herein. Exemplary connectors can include first and second bodies that are rotatable relative to one another about a rotation axis and selectively lockable to resist or prevent such rotation. Each of the bodies can be configured to couple to a rod or other fixation component, and the connector can be used to lock first and second rods together even when the rods are obliquely angled with respect to one another.Type: ApplicationFiled: March 28, 2017Publication date: October 4, 2018Inventors: Kevin Lee, Christopher Ramsay, Francisco Amaral, Carl Livorsi
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Publication number: 20180214185Abstract: Bone anchor assemblies are disclosed herein that can provide for improved fixation as compared with traditional bone anchor assemblies. An exemplary assembly can include a bracket or wing that extends down from the receiver member and accommodates one or more auxiliary bone anchors that augment the fixation of the assembly's primary bone anchor. Another exemplary assembly can include a plate that is seated between the receiver member and the rod and accommodates one or more auxiliary bone anchors that augment the fixation of the assembly's primary bone anchor. Another exemplary assembly can include a hook that extends out from the receiver member to hook onto an anatomical structure or another implant to augment the fixation of the assembly's primary bone anchor. Surgical methods using the bone anchor assemblies described herein are also disclosed.Type: ApplicationFiled: March 29, 2018Publication date: August 2, 2018Applicant: Medos International SarlInventors: J. Riley Hawkins, Albert Montello, Christopher Ramsay, Kevin Lee, Joseph Peterson, Ben Johnston, Heiko Koller, Todd Albert, Chris Ames, Brad Currier, Claudius Thome, Masashi Neo
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Publication number: 20180153600Abstract: Longitudinally-adjustable bone anchors and related methods are disclosed herein. The ability to adjust a bone anchor longitudinally can allow the surgeon to bring an implanted bone anchor up to the rod instead of or in addition to bringing the rod down to the bone anchor, which can simplify or eliminate the rod contouring step and reduce or eliminate reduction forces. For example, the surgeon can use a pre-bent rod or put “ideal contours” into a rod, lay the rod across a series of bone anchors, and adjust each bone anchor longitudinally to meet the rod. As another example, coarse adjustment of the fixation system can be achieved by contouring the rod and then fine adjustments can be made by bringing each bone anchor up or down to the rod. Various adjustment mechanisms are disclosed, including bone anchors with telescoping portions and bone anchors with risers or spacers.Type: ApplicationFiled: December 6, 2016Publication date: June 7, 2018Inventors: Heiko Koller, J. Riley Hawkins, Christopher Ramsay
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Patent number: 9962192Abstract: Bone anchor assemblies are disclosed herein that can provide for improved fixation as compared with traditional bone anchor assemblies. An exemplary assembly can include a bracket or wing that extends down from the receiver member and accommodates one or more auxiliary bone anchors that augment the fixation of the assembly's primary bone anchor. Another exemplary assembly can include a plate that is seated between the receiver member and the rod and accommodates one or more auxiliary bone anchors that augment the fixation of the assembly's primary bone anchor. Another exemplary assembly can include a hook that extends out from the receiver member to hook onto an anatomical structure or another implant to augment the fixation of the assembly's primary bone anchor. Surgical methods using the bone anchor assemblies described herein are also disclosed.Type: GrantFiled: March 17, 2016Date of Patent: May 8, 2018Assignee: Medos International SarlInventors: J. Riley Hawkins, Albert Montello, Christopher Ramsay, Kevin Lee, Joseph Peterson, Ben Johnston, Heiko Koller, Todd Albert, Chris Ames, Brad Currier, Claudius Thome, Masashi Neo