Patents by Inventor David W. Castleman
David W. Castleman 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).
-
Patent number: 11877774Abstract: A bone anchor system can comprise a fastener, a rod housing and a first directional component configured for connection to the fastener. The fastener can comprise a shaft having a shaft diameter, an anchoring projection on the shaft, and a head at an end of the shaft. The rod housing can be connected to the head of the fastener. The first directional component can comprise a first body portion having a first outer diameter larger than the shaft diameter, a first bore extending through the first body portion, the first bore sized to receive the shaft diameter, and a first locking component extending from the first body portion configured to engage the rod housing to limit movement of the housing.Type: GrantFiled: October 2, 2020Date of Patent: January 23, 2024Assignee: Zimmer Biomet Spine, Inc.Inventors: Terry Ziemek, David W Castleman
-
Publication number: 20230320761Abstract: A bone fastener system can comprise a fastener and a first sizing component. The fastener can comprise a shaft that provides an anchoring footprint. The first sizing component can be configured to be connected to the shaft and can include a first anchoring feature, or circumferential bone engaging feature, to increase a size of the anchoring footprint. The first anchoring feature can comprise a sleeve that radially expands a diameter of the threaded shaft. The first anchoring feature can comprise axially extending teeth. The system can further comprise a second sizing component including a second anchoring feature to increase the size of the anchoring footprint, the second anchoring feature being different from the first anchoring feature. The second anchoring feature can expand the diameter of the threaded shaft a greater amount than the first anchoring feature. The second anchoring feature can have a length greater than the first anchoring feature.Type: ApplicationFiled: June 9, 2023Publication date: October 12, 2023Inventors: Terry Ziemek, David W. Castleman
-
Patent number: 11707300Abstract: A bone fastener system can comprise a fastener and a first sizing component. The fastener can comprise a shaft that provides an anchoring footprint. The first sizing component can be configured to be connected to the shaft and can include a first anchoring feature, or circumferential bone engaging feature, to increase a size of the anchoring footprint. The first anchoring feature can comprise a sleeve that radially expands a diameter of the threaded shaft. The first anchoring feature can comprise axially extending teeth. The system can further comprise a second sizing component including a second anchoring feature to increase the size of the anchoring footprint, the second anchoring feature being different from the first anchoring feature. The second anchoring feature can expand the diameter of the threaded shaft a greater amount than the first anchoring feature. The second anchoring feature can have a length greater than the first anchoring feature.Type: GrantFiled: October 2, 2020Date of Patent: July 25, 2023Assignee: Zimmer Biomet Spine, Inc.Inventors: Terry Ziemek, David W Castleman
-
Publication number: 20210022772Abstract: A bone anchor system can comprise a fastener, a rod housing and a first directional component configured for connection to the fastener. The fastener can comprise a shaft having a shaft diameter, an anchoring projection on the shaft, and a head at an end of the shaft. The rod housing can be connected to the head of the fastener. The first directional component can comprise a first body portion having a first outer diameter larger than the shaft diameter, a first bore extending through the first body portion, the first bore sized to receive the shaft diameter, and a first locking component extending from the first body portion configured to engage the rod housing to limit movement of the housing.Type: ApplicationFiled: October 2, 2020Publication date: January 28, 2021Inventors: Terry Ziemek, David W. Castleman
-
Publication number: 20210022771Abstract: A bone fastener system can comprise a fastener and a first sizing component. The fastener can comprise a shaft that provides an anchoring footprint. The first sizing component can be configured to be connected to the shaft and can include a first anchoring feature, or circumferential bone engaging feature, to increase a size of the anchoring footprint. The first anchoring feature can comprise a sleeve that radially expands a diameter of the threaded shaft. The first anchoring feature can comprise axially extending teeth. The system can further comprise a second sizing component including a second anchoring feature to increase the size of the anchoring footprint, the second anchoring feature being different from the first anchoring feature. The second anchoring feature can expand the diameter of the threaded shaft a greater amount than the first anchoring feature. The second anchoring feature can have a length greater than the first anchoring feature.Type: ApplicationFiled: October 2, 2020Publication date: January 28, 2021Inventors: Terry Ziemek, David W. Castleman
-
Patent number: 10828070Abstract: A bone anchor system can comprise a fastener, a rod housing and a first directional component configured for connection to the fastener. The fastener can comprise a shaft having a shaft diameter, an anchoring projection on the shaft, and a head at an end of the shaft. The rod housing can be connected to the head of the fastener. The first directional component can comprise a first body portion having a first outer diameter larger than the shaft diameter, a first bore extending through the first body portion, the first bore sized to receive the shaft diameter, and a first locking component extending from the first body portion configured to engage the rod housing to limit movement of the housing.Type: GrantFiled: July 28, 2017Date of Patent: November 10, 2020Assignee: Zimmer Biomet Spine, Inc.Inventors: Terry Ziemek, David W Castleman
-
Patent number: 10820928Abstract: A bone fastener system can comprise a fastener and a first sizing component. The fastener can comprise a shaft that provides an anchoring footprint. The first sizing component can be configured to be connected to the shaft and can include a first anchoring feature, or circumferential bone engaging feature, to increase a size of the anchoring footprint. The first anchoring feature can comprise a sleeve that radially expands a diameter of the threaded shaft. The first anchoring feature can comprise axially extending teeth. The system can further comprise a second sizing component including a second anchoring feature to increase the size of the anchoring footprint, the second anchoring feature being different from the first anchoring feature. The second anchoring feature can expand the diameter of the threaded shaft a greater amount than the first anchoring feature. The second anchoring feature can have a length greater than the first anchoring feature.Type: GrantFiled: July 28, 2017Date of Patent: November 3, 2020Assignee: Zimmer Biomet Spine, Inc.Inventors: Terry Ziemek, David W Castleman
-
Publication number: 20180028245Abstract: A bone fastener system can comprise a fastener and a first sizing component. The fastener can comprise a shaft that provides an anchoring footprint. The first sizing component can be configured to be connected to the shaft and can include a first anchoring feature, or circumferential bone engaging feature, to increase a size of the anchoring footprint. The first anchoring feature can comprise a sleeve that radially expands a diameter of the threaded shaft. The first anchoring feature can comprise axially extending teeth. The system can further comprise a second sizing component including a second anchoring feature to increase the size of the anchoring footprint, the second anchoring feature being different from the first anchoring feature. The second anchoring feature can expand the diameter of the threaded shaft a greater amount than the first anchoring feature. The second anchoring feature can have a length greater than the first anchoring feature.Type: ApplicationFiled: July 28, 2017Publication date: February 1, 2018Inventors: Terry Ziemek, David W. Castleman
-
Publication number: 20180028236Abstract: A bone anchor system can comprise a fastener, a rod housing and a first directional component configured for connection to the fastener. The fastener can comprise a shaft having a shaft diameter, an anchoring projection on the shaft, and a head at an end of the shaft. The rod housing can be connected to the head of the fastener. The first directional component can comprise a first body portion having a first outer diameter larger than the shaft diameter, a first bore extending through the first body portion, the first bore sized to receive the shaft diameter, and a first locking component extending from the first body portion configured to engage the rod housing to limit movement of the housing.Type: ApplicationFiled: July 28, 2017Publication date: February 1, 2018Inventors: Terry Ziemek, David W. Castleman
-
Patent number: 9750512Abstract: An adjustable apparatus for guiding medical instruments used in attaching bone plates. The apparatus has a handle assembly, guide member, a spacer, and an actuation member. The actuation member extends from the handle assembly and actuates the spacer between a position adjacent the guide member and a position spaced from the guide member. The spacer has a through hole that may axially align with a lumen extending through the guide member when in the first position and which is moved out of axial alignment with the lumen in the second position. The spacer may function as a depth stop to control the maximum depth a drill bit can extend from the guide member.Type: GrantFiled: October 21, 2013Date of Patent: September 5, 2017Assignee: Zimmer Spine, Inc.Inventors: Eric P. Jerke, Peter G. Schulte, David W. Castleman, Andrew Olson, Jack A. Dant, Eric J. Lundequam, Hugh D. Hestad
-
Publication number: 20150112353Abstract: An adjustable apparatus for guiding medical instruments used in attaching bone plates. The apparatus has a handle assembly, guide member, a spacer, and an actuation member. The actuation member extends from the handle assembly and actuates the spacer between a position adjacent the guide member and a position spaced from the guide member. The spacer has a through hole that may axially align with a lumen extending through the guide member when in the first position and which is moved out of axial alignment with the lumen in the second position. The spacer may function as a depth stop to control the maximum depth a drill bit can extend from the guide member.Type: ApplicationFiled: October 21, 2013Publication date: April 23, 2015Applicant: Zimmer Spine, Inc.Inventors: Eric P. Jerke, Peter G. Schulte, David W. Castleman, Andrew Olson, Jack A. Dant, Eric J. Lundequam, Hugh D. Hestad
-
Patent number: 8268004Abstract: Embodiments of the invention include expandable, implantable devices and methods. Devices expand linearly to provide secure fixation between or among anatomical structures. In some embodiments, an implant replaces one or more vertebral bodies of the spine.Type: GrantFiled: July 16, 2010Date of Patent: September 18, 2012Assignee: Warsaw Orthopedic, Inc.Inventors: David W. Castleman, Eric S. Heinz
-
Patent number: 8231681Abstract: Embodiments of the invention include expandable, implantable devices and methods having internally contained expansion mechanisms. Devices expand linearly to provide secure fixation between or among anatomical structures. In some embodiments, an implant replaces one or more vertebral bodies of the spine.Type: GrantFiled: June 3, 2011Date of Patent: July 31, 2012Assignee: Warsaw OrthopedicInventors: David W. Castleman, Eric S. Heinz
-
Patent number: 7981157Abstract: Embodiments of the invention include expandable, implantable devices and methods having internally contained expansion mechanisms. Devices expand linearly to provide secure fixation between or among anatomical structures. In some embodiments, an implant replaces one or more vertebral bodies of the spine.Type: GrantFiled: April 27, 2006Date of Patent: July 19, 2011Assignee: Warsaw Orthopedic, Inc.Inventors: David W. Castleman, Eric S. Heinz
-
Publication number: 20100280614Abstract: Embodiments of the invention include expandable, implantable devices and methods. Devices expand linearly to provide secure fixation between or among anatomical structures. In some embodiments, an implant replaces one or more vertebral bodies of the spine.Type: ApplicationFiled: July 16, 2010Publication date: November 4, 2010Applicant: WARSAW ORTHOPEDIC, INC.Inventors: David W. Castleman, Eric S. Heinz
-
Patent number: 7758648Abstract: An expandable medical implant with a length along its expandable dimension that has a first tubular member with a connection end including a first set of protrusions and an opposite skeletal interface end. Also, the expandable implant has a second tubular member with a connection end including a second set of protrusions configured to engage with the connection end of the first tubular member. The second tubular member including an opposite end opposite from the connection end. The first set of protrusions includes a flank with a negative flank angle such that the flank is positively loaded when the implant is compressively loaded along its length.Type: GrantFiled: April 27, 2006Date of Patent: July 20, 2010Assignee: Warsaw Orthopedic, Inc.Inventors: David W. Castleman, Eric S. Heinz