Patents by Inventor John E. Hammill
John E. Hammill 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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Patent number: 8663290Abstract: The fastening system consists of the polyaxial ball and socket joint used in conjunction with a bone screw having threads on one end for use in anchoring to the spine and a spherical connector on the other end operating as a pivot point about which a connecting assembly moves in a polyaxial fashion. A substantially U-shaped connecting assembly has a lower receptacle that operates as a socket for housing a retainer ring within a retaining ring groove. The retaining ring cooperates with the connector assembly and a saddle that is positioned atop the spherical connector.Type: GrantFiled: February 15, 2012Date of Patent: March 4, 2014Assignee: Ortho Innovations, LLCInventors: Robert L. Doubler, John E. Hammill, Sr.
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Patent number: 8663291Abstract: The fastening system consists of the polyaxial ball and socket joint used in conjunction with a bone screw having threads on one end for use in anchoring to the spine and a spherical connector on the other end operating as a pivot point about which a connecting assembly moves in a polyaxial fashion. A substantially U-shaped connecting assembly has a lower receptacle that operates as a socket for housing a retainer ring within a retaining ring groove.Type: GrantFiled: February 15, 2012Date of Patent: March 4, 2014Assignee: Ortho Innovations, LLCInventors: Robert L. Doubler, John E. Hammill, Sr.
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Publication number: 20130345754Abstract: The bottom loading fastening system that consists of the polyaxial ball and socket joint used in conjunction with a bone screw having threads on one end for use in anchoring to the spine and a spherical connector on the other end operating as a pivot point about which a connecting assembly moves in a polyaxial fashion. A substantially U-shaped connecting assembly has a lower receptacle having a retainer ring within a retaining ring groove for use in securing the spherical connector to the connecting assembly.Type: ApplicationFiled: July 18, 2013Publication date: December 26, 2013Applicant: Ortho Innovations, LLCInventors: Robert L. Doubler, John E. Hammill, Sr.
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Patent number: 8465530Abstract: A polyaxial ball and socket joint that can be locked into a fixed position. The fastening system consists of the polyaxial ball and socket joint used in conjunction with a bone screw having threads on one end for use in anchoring to the spine and a spherical connector on the other end operating as a pivot point about which a connecting assembly moves in a polyaxial fashion. A substantially U-shaped connecting assembly has a lower receptacle that operates as a socket for housing an upper retainer ring and a lower split retaining ring. The socket is receptive to the spherical connector which is inserted through the lower split retainer ring causing a momentary displacement thereof which allows for the positioning of the spherical connector between the upper and lower retainer rings.Type: GrantFiled: May 6, 2011Date of Patent: June 18, 2013Assignee: Ortho Innovations, LLCInventors: John E. Hammill, Sr., Robert L. Doubler
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Publication number: 20130110180Abstract: The fastening system consists of the polyaxial ball and socket joint used in conjunction with a bone screw having threads on one end for use in anchoring to the spine and a spherical connector on the other end operating as a pivot point about which a connecting assembly moves in a polyaxial fashion. A substantially U-shaped connecting assembly has a lower receptacle that operates as a socket for housing a retainer ring within a retaining ring groove. The retaining ring cooperates with the connector assembly and a saddle that is positioned atop the spherical connector.Type: ApplicationFiled: February 15, 2012Publication date: May 2, 2013Inventors: Robert L. Doubler, John E. Hammill, SR.
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Publication number: 20130110177Abstract: The fastening system consists of the polyaxial ball and socket joint used in conjunction with a bone screw having threads on one end for use in anchoring to the spine and a spherical connector on the other end operating as a pivot point about which a connecting assembly moves in a polyaxial fashion. A substantially U-shaped connecting assembly has a lower receptacle that operates as a socket for housing a retainer ring within a retaining ring groove.Type: ApplicationFiled: February 15, 2012Publication date: May 2, 2013Inventors: Robert L. Doubler, John E. Hammill, SR.
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Patent number: 8197546Abstract: The present invention describes an expandable vertebral implant and the method of use. The longitudinally expandable vertebral implant includes telescoping sections adapted for incremental expansion and ease of securement at any desired increment in situ, and constructed and arranged to engage opposing vertebrae. The corpectomy device is a distractible vertebral body replacement for the thoracic and lumbar spine. The device is cylindrical shaped having an inner and outer sleeve made adjustable by use of locking pads formed integral with the outer sleeve for use in engaging parallel circumferential locking grooves formed along the outer side surface of the inner sleeve.Type: GrantFiled: November 11, 2008Date of Patent: June 12, 2012Assignee: Ortho Innovations, LLCInventors: Robert L. Doubler, John E. Hammill, Sr.
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Patent number: 8197518Abstract: A thread-thru polyaxial pedicle screw fastening system. The fastening system consists of an anchoring bone screw having threads on one end for use in anchoring to the screw to the spine and a spherical connector on the other end operating as a pivot point about which a U-shaped connecting assembly moves in a polyaxial fashion. The U-shaped connecting assembly, for receipt of a spinal connecting rod, has a biased retainer ring for maintaining a positive tension between the connecting assembly and the anchored screw. The system allows for an improved manufacturing step wherein the threaded shank of a bone screws can be passed through a lower portion of the connecting assembly allowing a variety of bone screw sizes to be used with a common sized connector.Type: GrantFiled: July 28, 2010Date of Patent: June 12, 2012Assignee: Ortho Innovations, LLCInventors: John E. Hammill, Sr., Robert L. Doubler
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Patent number: 8157801Abstract: One method of reducing fractures in long bones is to insert an intramedullary screw through the bone canal across the fracture and deploy tangs to increase the purchase of the screw. Compression is then applied along the screw to bring the broken bone together. An improved low cost lag screw has a cannulated shaft with a shaped bore in the leading end. A similarly shaped tang body is movably disposed in the leading end bore. The tang body has several tangs laser welded about the periphery and extending from the tang body. The shaped surfaces of the bore have exit holes and the ends of the tangs are adjacent the holes. An end cap is laser welded to the leading end of the shaft.Type: GrantFiled: February 9, 2004Date of Patent: April 17, 2012Inventors: Robert L. Doubler, John E. Hammill
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Publication number: 20110307012Abstract: A prosthetic spinous process cross-link implant for the replacement of a posterior vertebral element. The implant includes a cross link body member with a pair of adjustable link arms connected to the cross link body to size the implant to specific anatomical configurations. The implant includes a rod clamp that is spring loaded to a forward position such that capturing a spinal rod on to the adjustable link arms to achieve a snap on effect thereby increasing the ease of installation. A plurality of spinous process cross-link implants can be assembled as a kit wherein the set includes a group of spinous process type yokes and bridge type yokes each group including both fixed and variable sized implants.Type: ApplicationFiled: August 22, 2011Publication date: December 15, 2011Inventors: Hamid R. Mir, John E. Hammill, SR., Robert L. Doubler
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Patent number: 8075603Abstract: The fastening system consists of the polyaxial ball and socket joint used in conjunction with a bone screw having threads on one end for use in anchoring to the spine and a spherical connector on the other end operating as a pivot point about which a connecting assembly moves in a polyaxial fashion. A substantially U-shaped connecting assembly has a lower receptacle that operates as a socket for housing an upper retainer ring and a lower split retaining ring. The socket is receptive to the spherical connector which is inserted through the lower split retainer ring causing a momentary displacement thereof which allows for the positioning of the spherical connector between the upper and lower retainer rings.Type: GrantFiled: July 9, 2010Date of Patent: December 13, 2011Assignee: Ortho Innovations, LLCInventors: John E. Hammill, Sr., Robert L. Doubler
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Publication number: 20110208251Abstract: A polyaxial ball and socket joint that can be locked into a fixed position. The fastening system consists of the polyaxial ball and socket joint used in conjunction with a bone screw having threads on one end for use in anchoring to the spine and a spherical connector on the other end operating as a pivot point about which a connecting assembly moves in a polyaxial fashion. A substantially U-shaped connecting assembly has a lower receptacle that operates as a socket for housing an upper retainer ring and a lower split retaining ring. The socket is receptive to the spherical connector which is inserted through the lower split retainer ring causing a momentary displacement thereof which allows for the positioning of the spherical connector between the upper and lower retainer rings.Type: ApplicationFiled: May 6, 2011Publication date: August 25, 2011Inventors: John E. Hammill, SR., Robert L. Doubler
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Patent number: 7981143Abstract: The present invention provides a linear fastening system capable of rapid engagement and disengagement. More specifically, the system utilizes a cooperating collet member and a compression ring member which are constructed and arranged to slip easily over a shank member. The fastener system is secured by sliding a compression member in a linear overlapping fashion over the collet member thereby utilizing the conical surfaces to compress the collet member to grip the outer surface of the shank member. In this manner, the linear fastener system is capable of providing a secure connection between multiple components without the need to apply rotational torque to the assembly.Type: GrantFiled: September 10, 2003Date of Patent: July 19, 2011Assignee: Spinal LLCInventors: Robert L. Doubler, John E. Hammill, Sr.
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Patent number: 7951173Abstract: A pedicle screw fastening that can be made polyaxial, monoaxial, fixed, or provide a predefined monoaxial placement. The fastening system consists of an anchoring bone screw having threads on one end for use in anchoring to the screw to the spine and a spherical connector on the other end operating as a pivot point about which a U-shaped or side loading connecting assembly is used to secure to a connecting rod for use in stabilization of a spine. The connecting assembly, for receipt of a spinal connecting rod, includes a biased retainer ring for maintaining a positive tension between the connecting assembly and the anchored screw. The system allows for an improved manufacturing step wherein the threaded shank of a bone screws can be passed through a lower portion of the connecting assembly allowing a variety of bone screw sizes to be used with a common sized connector.Type: GrantFiled: February 4, 2010Date of Patent: May 31, 2011Assignee: Ortho Innovations, LLCInventors: John E. Hammill, Sr., Robert L. Doubler
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Patent number: 7947065Abstract: A polyaxial ball and socket joint that can be locked into a fixed position. The fastening system consists of the polyaxial ball and socket joint used in conjunction with a bone screw having threads on one end for use in anchoring to the spine and a spherical connector on the other end operating as a pivot point about which a connecting assembly moves in a polyaxial fashion. A substantially U-shaped connecting assembly has a lower receptacle that operates as a socket for housing an upper retainer ring and a lower split retaining ring. The socket is receptive to the spherical connector which is inserted through the lower split retainer ring causing a momentary displacement thereof which allows for the positioning of the spherical connector between the upper and lower retainer rings.Type: GrantFiled: January 16, 2009Date of Patent: May 24, 2011Assignee: Ortho Innovations, LLCInventors: John E. Hammill, Sr., Robert L. Doubler
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Patent number: 7942909Abstract: A thread-thru polyaxial pedicle screw fastening system. The fastening system consists of an anchoring bone screw having threads on one end for use in anchoring to the screw to the spine and a spherical connector on the other end operating as a pivot point about which a U-shaped connecting assembly moves in a polyaxial fashion. The U-shaped connecting assembly, for receipt of a spinal connecting rod, has a biased retainer ring for maintaining a positive tension between the connecting assembly and the anchored screw. The system allows for an improved manufacturing step wherein the threaded shank of a bone screws can be passed through a lower portion of the connecting assembly allowing a variety of bone screw sizes to be used with a common sized connector.Type: GrantFiled: August 13, 2009Date of Patent: May 17, 2011Assignee: Ortho Innovations, LLCInventors: John E. Hammill, Sr., Robert L. Doubler
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Patent number: 7942911Abstract: A fastening system for bone screws used in spinal fixation systems for reshaping the spine of a patient. The bone screw has threads on one end for anchoring in the spine. The other end has a spherical head with a multi sided recess formed therein for engagement with an appropriate driving tool. The system includes a stabilizing rod, a saddle member, a cap member and a set screw with at least one bone screw having a outer diameter that exceeds the diameter of a cavity formed in the saddle, wherein placement of the bone screw is made possible by matching the threads of the set screw to the threads of the bone screw. The head of the bone screw providing proper positioning of the stabilization rod within the patient.Type: GrantFiled: June 12, 2009Date of Patent: May 17, 2011Assignee: Ortho Innovations, LLCInventors: Robert L. Doubler, John E. Hammill
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Patent number: 7942910Abstract: A fastening system for bone screws used in spinal fixation systems for reshaping the spine of a patient. The bone screw has threads on one end for anchoring in the spine. The other end has a spherical head with a multi sided recess formed therein for engagement with an appropriate driving tool. The system includes a stabilizing rod, a saddle member, a cap member and a set screw with at least one bone screw having a outer diameter that exceeds the diameter of a cavity formed in the saddle, wherein placement of the bone screw is made possible by matching the threads of the set screw to the threads of the bone screw. The head of the bone screw providing proper positioning of the stabilization rod within the patient.Type: GrantFiled: May 16, 2007Date of Patent: May 17, 2011Assignee: Ortho Innovations, LLCInventors: Robert L. Doubler, John E. Hammill
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Publication number: 20110040336Abstract: A thread-thru polyaxial pedicle screw fastening system. The fastening system consists of an anchoring bone screw having threads on one end for use in anchoring to the screw to the spine and a spherical connector on the other end operating as a pivot point about which a U-shaped connecting assembly moves in a polyaxial fashion. The U-shaped connecting assembly, for receipt of a spinal connecting rod, has a biased retainer ring for maintaining a positive tension between the connecting assembly and the anchored screw. The system allows for an improved manufacturing step wherein the threaded shank of a bone screws can be passed through a lower portion of the connecting assembly allowing a variety of bone screw sizes to be used with a common sized connector.Type: ApplicationFiled: August 13, 2009Publication date: February 17, 2011Inventors: John E. Hammill, SR., Robert L. Doubler
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Patent number: RE42867Abstract: A low profile orthopedic device is used to fix and stabilize bones to correct anomalies in skeletal structure occurring naturally or by trauma. Bone screws are screwed into bones by application of torque. Clamps are movably attached to the screws. Each clamp includes a compression ring. A connecting rod connects several screws through slots in the clamps. The clamps are tightened to hold the rod and the heads in a pre-selected position by linear movement of the compression rings.Type: GrantFiled: May 9, 2008Date of Patent: October 25, 2011Assignee: Spinal, LLCInventors: John E. Hammill, Sr., Robert Doubler