Patents Assigned to ZAVATION LLC
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Patent number: 11931265Abstract: An expandable intervertebral implant having an upper body portion, a lower body portion opposite the upper body portion. a wedge member connecting the upper body portion to the lower body portion, a nose member having a tapered distal end and a proximal end opposite the distal end, and an actuator disposed between the nose member and the wedge member, for translation of the wedge member along a longitudinal axis of the implant. A pin disposed in a center of the nose member connects to the actuator for centering the nose member with the actuator. Translation of the wedge member along the longitudinal axis of the implant displaces the upper body portion and the lower body portion away from each other, thereby expanding the intervertebral implant.Type: GrantFiled: June 18, 2021Date of Patent: March 19, 2024Assignee: Zavation, LLCInventors: John Lawrence Walker, Joseph Matthew Jones
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Patent number: 11364055Abstract: An occipital plate and hinged rod assembly. The occipital plate having a screw-attachment section having through holes for securing the occipital plate to a skull, a laterally-extending section, a tulip connector, a slide clip disposed underneath the laterally-extending section and engaging a base of the tulip connector, and an insert ring encompassing side walls of tulip connector. The laterally-extending section, the tulip connector, the slide clip, and the insert ring have respective surfaces with complementary curvatures that fit together. The hinged rod assembly is connected to the occipital plate by rods.Type: GrantFiled: September 2, 2020Date of Patent: June 21, 2022Assignee: Zavation, LLCInventors: John Franklin Cummins, Colbert Yeates Williams
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Patent number: 11278420Abstract: A surgical implant and a surgical kit. The surgical implant having a body for contacting and supporting adjacent vertebrae. The body has a) opposing superior and inferior surfaces with or without corrugations, b) recesses formed in the opposing superior and inferior surfaces within a peripheral boundary of the body, and a recess-fill material (which preferably promotes osseointegration) disposed in the recesses.Type: GrantFiled: October 23, 2020Date of Patent: March 22, 2022Assignee: Zavation, LLCInventors: John Lawrence Walker, Colby Williams, Henry E. Aryan
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Patent number: 11051949Abstract: An expandable intervertebral implant having an upper body portion, a lower body portion opposite the upper body portion, a wedge member connecting the upper body portion to the lower body portion, a nose member having a tapered distal end and a proximal end opposite the distal end, and an actuator disposed between the nose member and the wedge member, for translation of the wedge member along a longitudinal axis of the implant. A pin disposed in a center of the nose member connects to the actuator for centering the nose member with the actuator. Translation of the wedge member along the longitudinal axis of the implant displaces the upper body portion and the lower body portion away from each other, thereby expanding the intervertebral implant.Type: GrantFiled: March 21, 2019Date of Patent: July 6, 2021Assignee: Zavation, LLCInventors: John Lawrence Walker, Joseph Matthew Jones
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Patent number: 10582955Abstract: Methods of installing bone plates on adjacent vertebrae are provided.Type: GrantFiled: March 21, 2018Date of Patent: March 10, 2020Assignee: Zavation, LLCInventors: John Franklin Cummins, John Lawrence Walker, Eric Graham
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Patent number: 10383675Abstract: A surgical screw driving device for driving a screw into a surgical fixture. The device has a screwdriver having a proximal end, a distal end having a driver for engaging the screw, and an elongated shaft extending therebetween. The device has a screw retainer surrounding and extending along the elongated shaft. The screw retainer is configured to engage and hold a periphery of a screw head prior to the screw being driven into the surgical fixture. The screw retainer is configured to disengage from the periphery of the screw head as an axial end of the screw retainer contacts the surgical fixture and is further configured, upon disengagement and without necessity of outside assistance, to translate along the elongated shaft of the screwdriver away from the distal end and toward the proximal end.Type: GrantFiled: September 19, 2018Date of Patent: August 20, 2019Assignee: ZAVATION, LLCInventors: John Franklin Cummins, John Lawrence Walker, Joseph Matthew Jones
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Patent number: 10278830Abstract: An expandable intervertebral implant having an upper body portion, a lower body portion opposite the upper body portion, a wedge member connecting the upper body portion to the lower body portion, a nose member having a tapered distal end and a proximal end opposite the distal end, and an actuator disposed between the nose member and the wedge member, for translation of the wedge member along a longitudinal axis of the implant. A pin disposed in a center of the nose member connects to the actuator for centering the nose member with the actuator. Translation of the wedge member along the longitudinal axis of the implant displaces the upper body portion and the lower body portion away from each other, thereby expanding the intervertebral implant.Type: GrantFiled: September 19, 2018Date of Patent: May 7, 2019Assignee: Zavation, LLCInventors: John Lawrence Walker, Joseph Matthew Jones
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Patent number: 8986354Abstract: The present invention relates to a surgical drill guide having an anchoring mechanism for locking the drill guide to a bone plate. The anchoring mechanism is adapted to be received through an opening of a bone plate and rotated to lock the drill guide to the bone plate. The anchoring mechanism can be rotated by a driver, which has a distal end key that fits into a corresponding socket of on the proximal portion of the anchoring mechanism. The present invention also relates to a kit including a bone plate, a driver, and the drill guide and a method for using the kit to perform surgery.Type: GrantFiled: February 14, 2012Date of Patent: March 24, 2015Assignee: Zavation LLCInventor: John Lawrence Walker
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Publication number: 20140073836Abstract: The present invention relates to a system and method of applying a therapeutic electrical field to a bone region of a human being in order to promote healing and growth that that bone region. The present invention also provides a system that produces a combined magnetic field (CMF) that is precisely located and controlled across the entire treatment area requiring bone growth stimulation by utilizing bone dimensional input parameters to automatically calculate and drive the appropriate output therapy single through a single coil.Type: ApplicationFiled: September 12, 2013Publication date: March 13, 2014Applicant: Zavation, LLCInventors: Jeffrey Johnson, John Lawrence Walker, Joel Frank McCown
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Publication number: 20130211462Abstract: The present invention relates to a surgical drill guide having an anchoring mechanism for locking the drill guide to a bone plate. The anchoring mechanism is adapted to be received through an opening of a bone plate and rotated to lock the drill guide to the bone plate. The anchoring mechanism can be rotated by a driver, which has a distal end key that fits into a corresponding socket of on the proximal portion of the anchoring mechanism. The present invention also relates to a kit including a bone plate, a driver, and the drill guide and a method for using the kit to perform surgery.Type: ApplicationFiled: February 14, 2012Publication date: August 15, 2013Applicant: ZAVATION LLCInventor: John Lawrence WALKER