Patents by Inventor Steven D. Ainsworth
Steven D. Ainsworth 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: 7905908Abstract: A spinal mobility preservation apparatus and methods are disclosed. The spinal mobility preservation apparatus may include a proximal body, an intermediate body, a distal body, and an expandable membrane. The proximal body and the distal body secure the mobility preservation apparatus to adjacent vertebral bodies. At least one of an intermediate body and an expandable membrane secure the proximal body to the distal body and provide a degree of support to a spinal motion segment defined by the adjacent vertebral bodies. A single proximal body and an expandable membrane may also compose a spinal mobility preservation apparatus. The proximal body secured to one of a superior or an inferior vertebral body and the expandable membrane extending into the intervertebral disc space to support the spinal motion segment.Type: GrantFiled: October 31, 2007Date of Patent: March 15, 2011Assignee: TranS1, Inc.Inventors: Andrew H. Cragg, Robert L. Assell, Steven D. Ainsworth, Eugene A. Dickhudt, Bradley J. Wessman
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Patent number: 7717958Abstract: A spinal mobility preservation apparatus and methods are disclosed. The spinal mobility preservation apparatus may include a proximal body, an intermediate body, a distal body, and an expandable membrane. The proximal body and the distal body secure the mobility preservation apparatus to adjacent vertebral bodies. At least one of an intermediate body and an expandable membrane secure the proximal body to the distal body and provide a degree of support to a spinal motion segment defined by the adjacent vertebral bodies. A single proximal body and an expandable membrane may also compose a spinal mobility preservation apparatus. The proximal body secured to one of a superior or an inferior vertebral body and the expandable membrane extending into the intervertebral disc space to support the spinal motion segment.Type: GrantFiled: October 22, 2004Date of Patent: May 18, 2010Assignee: Trans1, Inc.Inventors: Andrew H. Cragg, Robert L. Assell, Steven D. Ainsworth, Eugene A. Dickhudt, Bradley J. Wessman
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Patent number: 7662173Abstract: A spinal mobility preservation apparatus and methods are disclosed. The spinal mobility preservation apparatus may include a proximal body, an intermediate body, a distal body, and an expandable membrane. The proximal body and the distal body secure the mobility preservation apparatus to adjacent vertebral bodies. At least one of an intermediate body and an expandable membrane secure the proximal body to the distal body and provide a degree of support to a spinal motion segment defined by the adjacent vertebral bodies. A single proximal body and an expandable membrane may also compose a spinal mobility preservation apparatus. The proximal body secured to one of a superior or an inferior vertebral body and the expandable membrane extending into the intervertebral disc space to support the spinal motion segment.Type: GrantFiled: October 22, 2004Date of Patent: February 16, 2010Assignee: Transl, Inc.Inventors: Andrew H. Cragg, Robert L. Assell, Steven D. Ainsworth, Eugene A. Dickhudt, Bradley J. Wessman
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Patent number: 7530993Abstract: Surgical tools, tool sets and methods for percutaneously accessing and preparing treatment sites within the spine. A method of treating the spine, comprising the steps of percutaneously accessing an anterior target site on the surface of the sacrum, forming a lumen from the access site through the sacrum, through a disc and into at least one vertebra, advancing a fusion device comprising a distal portion, a proximal portion and an intermediate portion between the distal and proximal portion through the anterior target site on the surface of the sacrum and into the spine, rotating the distal portion of the device into a superior vertebral body and the proximal portion of the device in an inferior vertebral body to increase a distance between the superior and inferior vertebral bodies, and inserting through a percutaneous access site a posterior column fixation device into the spine.Type: GrantFiled: October 22, 2004Date of Patent: May 12, 2009Assignee: TranS1 Inc.Inventors: Robert L. Assell, Steven D. Ainsworth, Andrew H Cragg
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Publication number: 20090105768Abstract: A spinal mobility preservation apparatus and methods are disclosed. The spinal mobility preservation apparatus may include a proximal body, an intermediate body, a distal body, and an expandable membrane. The proximal body and the distal body secure the mobility preservation apparatus to adjacent vertebral bodies. At least one of an intermediate body and an expandable membrane secure the proximal body to the distal body and provide a degree of support to a spinal motion segment defined by the adjacent vertebral bodies. A single proximal body and an expandable membrane may also compose a spinal mobility preservation apparatus. The proximal body secured to one of a superior or an inferior vertebral body and the expandable membrane extending into the intervertebral disc space to support the spinal motion segment.Type: ApplicationFiled: December 19, 2008Publication date: April 23, 2009Applicant: TRANS1Inventors: Andrew H. Cragg, Robert L. Assell, Steven D. Ainsworth, Eugene A. Dickhudt, Bradley J. Wessman
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Patent number: 7500977Abstract: Disclosed are surgical tools, tool sets and methods for percutaneously accessing and preparing treatment sites within the spine for subsequent treatment procedures. The treatment site may be an inter-vertebral motion segments in the lumbar and sacral regions of the spine. The tool set may comprise introducer tools and bone dilators for accessing and tapping into a targeted site, such as, for example, the anterior surface of the S1 vertebral body. The tool set may also comprise cutters and extractors for preparing the treatment site for subsequent treatment procedures. The tool set may additionally comprise a bone graft inserter, an exchange system, and/or a temporary distraction tool for further preparing the treatment site for subsequent treatment procedures.Type: GrantFiled: October 22, 2004Date of Patent: March 10, 2009Assignee: TranS1 Inc.Inventors: Robert L. Assell, Steven D. Ainsworth, Andrew L. Cragg, Eugene A. Dickhudt
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Patent number: 7491236Abstract: A spinal mobility preservation apparatus and methods are disclosed. The spinal mobility preservation apparatus may include a proximal body, an intermediate body, a distal body, and an expandable membrane. The proximal body and the distal body secure the mobility preservation apparatus to adjacent vertebral bodies. At least one of an intermediate body and an expandable membrane secure the proximal body to the distal body and provide a degree of support to a spinal motion segment defined by the adjacent vertebral bodies. A single proximal body and an expandable membrane may also compose a spinal mobility preservation apparatus. The proximal body secured to one of a superior or an inferior vertebral body and the expandable membrane extending into the intervertebral disc space to support the spinal motion segment.Type: GrantFiled: October 22, 2004Date of Patent: February 17, 2009Assignee: Trans1, Inc.Inventors: Andrew H. Cragg, Robert L. Assell, Steven D. Ainsworth, Eugene A. Dickhudt, Bradley J. Wessman
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Patent number: 7473256Abstract: Disclosed are surgical tools, tool sets and methods for percutaneously accessing and preparing treatment sites within the spine for subsequent treatment procedures. The treatment site may be an inter-vertebral motion segments in the lumbar and sacral regions of the spine. The tool set may comprise introducer tools and bone dilators for accessing and tapping into a targeted site, such as, for example, the anterior surface of the S1 vertebral body. The tool set may also comprise cutters and extractors for preparing the treatment site for subsequent treatment procedures. The tool set may additionally comprise a bone graft inserter, an exchange system, and/or a temporary distraction tool for further preparing the treatment site for subsequent treatment procedures.Type: GrantFiled: October 22, 2004Date of Patent: January 6, 2009Assignee: TranS1 Inc.Inventors: Robert L. Assell, Steven D. Ainsworth, Andrew L. Cragg, Eugene A. Dickhudt
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Publication number: 20080188895Abstract: A spinal mobility preservation apparatus and methods are disclosed. The spinal mobility preservation apparatus may include a proximal body, an intermediate body, a distal body, and an expandable membrane. The proximal body and the distal body secure the mobility preservation apparatus to adjacent vertebral bodies. At least one of an intermediate body and an expandable membrane secure the proximal body to the distal body and provide a degree of support to a spinal motion segment defined by the adjacent vertebral bodies. A single proximal body and an expandable membrane may also compose a spinal mobility preservation apparatus. The proximal body secured to one of a superior or an inferior vertebral body and the expandable membrane extending into the intervertebral disc space to support the spinal motion segment.Type: ApplicationFiled: October 31, 2007Publication date: August 7, 2008Inventors: Andrew H. Cragg, Robert L. Assell, Steven D. Ainsworth, Eugene A. Dickhudt, Bradley J. Wessman