Patents by Inventor John Lawrence Walker
John Lawrence Walker 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: 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: 11911289Abstract: An expandable screw for orthopedic insertion and expansion between a collapsed state and an expanded state. The screw has an upper externally-threaded body segment, a lower externally-threaded body segment opposite the upper external thread segments, and an expansion member extending along a longitudinal axis thereof. The expansion member connecting the upper externally-threaded body segment to the lower externally-threaded body segment, and configured during the expansion between the collapsed state and the expanded state to separate the upper externally-threaded body segment from the lower externally-threaded body segment.Type: GrantFiled: June 7, 2022Date of Patent: February 27, 2024Assignee: Zavation Medical Products, LLCInventors: Robert Alton McGuire, Jr., Joseph Matthew Jones, John Lawrence Walker
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Publication number: 20240058039Abstract: A modular screw assembly for use in stabilizing a spinal column. The assembly has a fastener which couples to a screw head of a bone anchor, a screw head coupler, a retaining ring, and a friction ring. The fastener houses the screw head coupler, the retaining ring, and the friction ring. Translation of the fastener by the screw head results in the retaining ring elastically deforming and then snapping around the screw head.Type: ApplicationFiled: June 6, 2023Publication date: February 22, 2024Inventors: John Franklin Cummins, John Lawrence Walker
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Publication number: 20240024007Abstract: A bone cement mixing and dispensing system and method for mixing and delivering bone cement therefrom. The system has a mixing container for holding a bone cement mixture, the mixing container extending along an axial length and having opposed first and second ends, the first end comprising a downstream opening for dispensing the bone cement downstream from the mixing container; a mixing element movably disposed within the mixing container; and a plunger comprising a piston movably disposed within the mixing container. In this system. with a first coupling, the mixing element moves by assistance of a motor along the axial length of the mixing container without translation of the plunger to mix the bone cement. In this system. with a second coupling, the mixing element and plunger are driven together along the axial length of the mixing container.Type: ApplicationFiled: July 24, 2023Publication date: January 25, 2024Inventors: Colby Williams, John Franklin Cummins, John Lawrence Walker, Brad Risher, Christopher Strahm, Talya Mathein
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Publication number: 20240016623Abstract: 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 connects to the actuator for positioning the nose member relative to 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: ApplicationFiled: July 24, 2023Publication date: January 18, 2024Inventors: Joseph Matthew Jones, John Lawrence Walker
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Patent number: 11857436Abstract: A surgical implant and a surgical kit. The surgical implant has a body having at least one interior surface, the body forming a peripheral support for the implant. The surgical implant has a porous insert comprised of a porous material, having at least one axially-extending hole, and attached to the body along the at least one interior surface such that the porous material extends across a height of the body. The porous insert has a locking mechanism formed in the porous insert or extending from the porous insert, the locking mechanism minimizing movement of the porous insert from within the body. The surgical kit includes the surgical implant and an intervertebral insertion device.Type: GrantFiled: July 27, 2020Date of Patent: January 2, 2024Assignee: ZAVATION MEDICAL PRODUCTS, LLCInventors: Katie Lynn Motley, John Franklin Cummins, Joseph Matthew Jones, John Lawrence Walker, Colbert Yeates Williams
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Patent number: 11771566Abstract: A surgical implant and a surgical kit. The surgical implant has a body portion comprising a first hole formed in an exterior surface of the body portion, a second hole adjacent the first hole, and at least one through-hole within the body portion and extending entirely thought a depth of the body portion extending entirely thought a depth of the body portion. The implant has a central opening abutting the body portion and extending through the body portion. The first hole has a first sidewall and a first cavity in the body portion, the second hole has a second sidewall and a second cavity in the body portion, and the first cavity and the second cavity have an interconnected opening there between. The surgical kit includes the surgical implant and an intervertebral insertion device.Type: GrantFiled: June 18, 2021Date of Patent: October 3, 2023Assignee: Zavation Medical Products, LLCInventors: Katie Lynn Motley, John Franklin Cummins, Joseph Matthew Jones, John Lawrence Walker, Colbert Yeates Williams
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Publication number: 20230277328Abstract: A surgical implant and a surgical kit. The surgical implant has a body having at least one interior surface, the body forming a peripheral support for the implant. The surgical implant has a porous insert comprised of a porous material, having at least one axially-extending hole, and attached to the body along the at least one interior surface such that the porous material extends across a height of the body. The porous insert has a locking mechanism formed in the porous insert or extending from the porous insert, the locking mechanism minimizing movement of the porous insert from within the body. The surgical kit includes the surgical implant and an intervertebral insertion device.Type: ApplicationFiled: May 10, 2023Publication date: September 7, 2023Inventors: Katie Lynn Motley, John Franklin Cummins, Joseph Matthew Jones, John Lawrence Walker, Colbert Yeates Williams
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Patent number: 11737802Abstract: A bone cement mixing and dispensing system and method for mixing and delivering bone cement therefrom. The system has a mixing container for holding a bone cement mixture, the mixing container extending along an axial length and having opposed first and second ends, the first end comprising a downstream opening for dispensing the bone cement downstream from the mixing container; a mixing element movably disposed within the mixing container; and a plunger comprising a piston movably disposed within the mixing container. In this system. with a first coupling, the mixing element moves by assistance of a motor along the axial length of the mixing container without translation of the plunger to mix the bone cement. In this system. with a second coupling, the mixing element and plunger are driven together along the axial length of the mixing container.Type: GrantFiled: July 25, 2022Date of Patent: August 29, 2023Assignee: Zavation Medical Products, LLCInventors: Colby Williams, John Franklin Cummins, John Lawrence Walker, Brad Risher, Christopher Strahm, Talya Mathein
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Patent number: 11737890Abstract: 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 connects to the actuator for positioning the nose member relative to 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: October 6, 2021Date of Patent: August 29, 2023Assignee: Zavation Medical Products, LLCInventors: Joseph Matthew Jones, John Lawrence Walker
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Patent number: 11690652Abstract: A modular screw assembly for use in stabilizing a spinal column. The assembly has a fastener which couples to a screw head of a bone anchor, a screw head coupler, a retaining ring, and a friction ring. The fastener houses the screw head coupler, the retaining ring, and the friction ring. Translation of the fastener by the screw head results in the retaining ring elastically deforming and then snapping around the screw head.Type: GrantFiled: August 17, 2022Date of Patent: July 4, 2023Assignee: ZAVATION MEDICAL PRODUCTS LLCInventors: John Franklin Cummins, John Lawrence Walker
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Publication number: 20230115389Abstract: An expandable screw for orthopedic insertion and expansion between a collapsed state and an expanded state. The screw has an upper externally-threaded body segment, a lower externally-threaded body segment opposite the upper external thread segments, and an expansion member extending along a longitudinal axis thereof. The expansion member connecting the upper externally-threaded body segment to the lower externally-threaded body segment, and configured during the expansion between the collapsed state and the expanded state to separate the upper externally-threaded body segment from the lower externally-threaded body segment.Type: ApplicationFiled: June 7, 2022Publication date: April 13, 2023Inventors: Robert Alton McGuire, JR., Joseph Matthew Jones, John Lawrence Walker
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Publication number: 20220331122Abstract: 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 connects to the actuator for positioning the nose member relative to 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: ApplicationFiled: October 6, 2021Publication date: October 20, 2022Inventors: Joseph Matthew Jones, John Lawrence Walker
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Patent number: 11389303Abstract: An expandable screw for orthopedic insertion and expansion between a collapsed state and an expanded state. The screw has an upper externally-threaded body segment, a lower externally-threaded body segment opposite the upper external thread segments, and an expansion member extending along a longitudinal axis thereof. The expansion member connecting the upper externally-threaded body segment to the lower externally-threaded body segment, and configured during the expansion between the collapsed state and the expanded state to separate the upper externally-threaded body segment from the lower externally-threaded body segment.Type: GrantFiled: October 7, 2021Date of Patent: July 19, 2022Assignee: Zavation Medical Products, LLCInventors: Robert Alton McGuire, Jr., Joseph Matthew Jones, John Lawrence Walker
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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: 11173044Abstract: 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 connects to the actuator for positioning the nose member relative to 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: April 20, 2021Date of Patent: November 16, 2021Assignee: Zavation Medical Products, LLCInventors: Joseph Matthew Jones, John Lawrence Walker
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Publication number: 20210346169Abstract: A surgical implant and a surgical kit. The surgical implant has a body portion comprising a first hole formed in an exterior surface of the body portion, a second hole adjacent the first hole, and at least one through-hole within the body portion and extending entirely thought a depth of the body portion extending entirely thought a depth of the body portion. The implant has a central opening abutting the body portion and extending through the body portion. The first hole has a first sidewall and a first cavity in the body portion, the second hole has a second sidewall and a second cavity in the body portion, and the first cavity and the second cavity have an interconnected opening there between. The surgical kit includes the surgical implant and an intervertebral insertion device.Type: ApplicationFiled: June 18, 2021Publication date: November 11, 2021Inventors: Katie Lynn Motley, John Franklin Cummins, Joseph Matthew Jones, John Lawrence Walker, Colbert Yeates Williams
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Publication number: 20210307920Abstract: 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: ApplicationFiled: June 18, 2021Publication date: October 7, 2021Inventors: John Lawrence Walker, Joseph Matthew Jones
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Patent number: 11051953Abstract: A surgical implant and a surgical kit. The surgical implant has a body portion comprising a first hole formed in an exterior surface of the body portion, a second hole adjacent the first hole, and at least one through-hole within the body portion and extending entirely thought a depth of the body portion extending entirely thought a depth of the body portion. The implant has a central opening abutting the body portion and extending through the body portion. The first hole has a first sidewall and a first cavity in the body portion, the second hole has a second sidewall and a second cavity in the body portion, and the first cavity and the second cavity have an interconnected opening there between.Type: GrantFiled: December 23, 2020Date of Patent: July 6, 2021Assignee: Zavation Medical Products, LLCInventors: Katie Lynn Motley, John Franklin Cummins, Joseph Matthew Jones, John Lawrence Walker, Colbert Yeates Williams
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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