Patents by Inventor Weston Pernsteiner
Weston Pernsteiner 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: 9216098Abstract: A method and apparatus for making a size measurement within an intervertebral space by placing an expandable and contractible device into the intervertebral space, expanding the device, measuring a size characteristic of the space, contracting the device and then removing it. The measurement may be accomplished by an external x-ray or other imaging device imaging the expanded device in situ or by mechanically operated devices. An expansion and contraction mechanism such as fluid containing bladder or mechanically shifted members expands the device which later contracts in a controlled manner to the contracted size. An apparatus and method is provided for the measuring of the intervertebral space at a controlled distraction force. The apparatus includes an expandable device for providing a measurement within the intervertebral space and facilitating the measurement of the angulations of the lordotic curve of the intervertebral space.Type: GrantFiled: February 10, 2009Date of Patent: December 22, 2015Assignee: PIONEER SURGICAL TECHNOLOGY, INC.Inventors: Jeffrey L. Trudeau, Thomas S. Kilpela, Qi-Bin Bao, Weston Pernsteiner
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Patent number: 8577463Abstract: An electrode assembly includes an interconnect for at least a first connector electrode and a second connector electrode, where the interconnect provides the mechanical and/or electrical connection between the electrodes. In one example, the assembly is an elongate member having material removed therefrom along an intermediate portion.Type: GrantFiled: May 4, 2011Date of Patent: November 5, 2013Assignee: Cardiac Pacemakers, Inc.Inventors: Devon N. Arnholt, Michelle Fangmeier, Samir Rajnibhai Gami, Aaron Gebauer, Kyle Hoecke, Weston Pernsteiner, Gregory L. Sundberg
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Patent number: 8372084Abstract: A system for replacing a natural nuclear disc in an intervertebral space has a spinal device configured for placement in the intervertebral space. An insertion tool is configured for holding the spinal device while the spinal device is inserted into the intervertebral space. A gripping member of the insertion tool has an end for adjustably holding the spinal device within the intervertebral space. A steering actuator of the insertion tool is operably connected to the spinal device and configured for pivoting the adjustably held spinal device within the intervertebral space while the steering actuator is controlled remotely from the intervertebral space. The steering actuator is rotatable about a longitudinal axis of the tool. A locking mechanism is provided to keep the spinal device from pivoting in an insertion position and to keep the disc device from being released unintentionally.Type: GrantFiled: September 24, 2007Date of Patent: February 12, 2013Assignee: Pioneer Surgical Technology, Inc.Inventors: Weston Pernsteiner, Jeffrey Trudeau
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Patent number: 8231676Abstract: A motion preserving implant having first and second bearing members and a biasing member disposed therebetween operable to provide resistance to the translation of the bodies with respect to one another. An intervertebral implant having first and second bearing members, a translatable member, a resilient connection between the translatable member and one of the bearing members to allow for relative motion therebetween and bearing surfaces of the translatable member and the other bearing member to allow complex, natural motion between the bearing members. A spinal implant having upper and lower bodies and an articulation surface that allows for polyaxial articulation and translation through a concave articulation surface having a first radius of curvature and a second radius of curvature in at least one plane, and a convex articulation surface having the first radius of curvature in the same plane.Type: GrantFiled: May 5, 2009Date of Patent: July 31, 2012Assignee: Pioneer Surgical Technology, Inc.Inventors: Jeffrey L. Trudeau, Qi-Bin Bao, Brian Janowski, Weston Pernsteiner, Tim Brown
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Publication number: 20110208282Abstract: An electrode assembly includes an interconnect for at least a first connector electrode and a second connector electrode, where the interconnect provides the mechanical and/or electrical connection between the electrodes. In one example, the assembly is an elongate member having material removed therefrom along an intermediate portion.Type: ApplicationFiled: May 4, 2011Publication date: August 25, 2011Inventors: Devon N. Arnholt, Michelle Fangmeier, Samir Rajnibhai Gami, Aaron Gebauer, Kyle Hoecke, Weston Pernsteiner, Gregory L. Sundberg
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Patent number: 8002837Abstract: Implant devices in the form of a vertebral body replacement for implantation within an intervertebral space between adjacent vertebrae is disclosed for immobilization and support of the adjacent vertebrae in a desired spatial relationship and for promotion of fusion by the adjacent vertebrae. Instruments for insertion and implantation of the implant devices and of fusion material such as bone graft material are disclosed. Methods are disclosed for implantation of the implant devices.Type: GrantFiled: May 18, 2007Date of Patent: August 23, 2011Assignee: Pioneer Surgical TechnologyInventors: Katie Stream, Adam Paltzer, Weston Pernsteiner, Brian P. Janowski, Douglas B. Moreland, Domagoj Coric
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Patent number: 7962213Abstract: An electrode assembly includes an interconnect for at least a first connector electrode and a second connector electrode, where the interconnect provides the mechanical and/or electrical connection between the electrodes. In one example, the assembly is an elongate member having material removed therefrom along an intermediate portion.Type: GrantFiled: May 12, 2005Date of Patent: June 14, 2011Assignee: Cardiac Pacemakers, Inc.Inventors: Devon N. Arnholt, Michelle Fangmeier, Samir Rajnibhai Gami, Aaron Gebauer, Kyle Hoecke, Weston Pernsteiner, Gregory L. Sundberg
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Publication number: 20090240333Abstract: A motion preserving implant having first and second bearing members and a biasing member disposed therebetween operable to provide resistance to the translation of the bodies with respect to one another. An intervertebral implant having first and second bearing members, a translatable member, a resilient connection between the translatable member and one of the bearing members to allow for relative motion therebetween and bearing surfaces of the translatable member and the other bearing member to allow complex, natural motion between the bearing members. A spinal implant having upper and lower bodies and an articulation surface that allows for polyaxial articulation and translation through a concave articulation surface having a first radius of curvature and a second radius of curvature in at least one plane, and a convex articulation surface having the first radius of curvature in the same plane.Type: ApplicationFiled: May 5, 2009Publication date: September 24, 2009Inventors: Jeffrey L. Trudeau, Qi-Bin Bao, Brian Janowski, Weston Pernsteiner, Tim Brown
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Publication number: 20090182343Abstract: A method and apparatus for making a size measurement within an intervertebral space by placing an expandable and contractible device into the intervertebral space, expanding the device, measuring a size characteristic of the space, contracting the device and then removing it. The measurement may be accomplished by an external x-ray or other imaging device imaging the expanded device in situ or by mechanically operated devices. An expansion and contraction mechanism such as fluid containing bladder or mechanically shifted members expands the device which later contracts in a controlled manner to the contracted size. An apparatus and method is provided for the measuring of the intervertebral space at a controlled distraction force. The apparatus includes an expandable device for providing a measurement within the intervertebral space and facilitating the measurement of the angulations of the lordotic curve of the intervertebral space.Type: ApplicationFiled: February 10, 2009Publication date: July 16, 2009Inventors: Jeffrey L. TRUDEAU, Thomas S. KILPELA, Qi-Bin BAO, Weston PERNSTEINER
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Publication number: 20080077153Abstract: A system for replacing a natural nuclear disc in an intervertebral space has a spinal device configured for placement in the intervertebral space. An insertion tool is configured for holding the spinal device while the spinal device is inserted into the intervertebral space. A gripping member of the insertion tool has an end for adjustably holding the spinal device within the intervertebral space. A steering actuator of the insertion tool is operably connected to the spinal device and configured for pivoting the adjustably held spinal device within the intervertebral space while the steering actuator is controlled remotely from the intervertebral space. The steering actuator is rotatable about a longitudinal axis of the tool. A locking mechanism is provided to keep the spinal device from pivoting in an insertion position and to keep the disc device from being released unintentionally.Type: ApplicationFiled: September 24, 2007Publication date: March 27, 2008Applicant: Pioneer Surgical Technology, Inc.Inventors: Weston Pernsteiner, Jeffrey Trudeau
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Publication number: 20080077146Abstract: The present invention relates to tools and methods for cutting the annulus of a spinal disc. The cutting tools of the invention may be cannulated for use in conjunction with a guide wire. A stop surface of the cutting tool is configured to contact the annulus during cutting to prevent further longitudinal movement of the surgical blade(s) into the annulus, thus limiting the size of the incision(s).Type: ApplicationFiled: September 21, 2007Publication date: March 27, 2008Applicant: PIONEER SURGICAL TECHNOLOGY, INC.Inventors: Weston Pernsteiner, Thomas Kilpela, Qi-Bin Bao
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Patent number: 7306361Abstract: A bone cement mixing and delivery assembly is disclosed for mixing a powdered copolymer and a liquid monomer to form a bone cement and delivering the bone cement. The assembly includes a cartridge having a distal end and a proximal end and defining a mixing chamber between the distal end and the proximal end. A transfer mechanism having a cap and a stem supporting a piston and a plunger is connected to the distal end. The transfer mechanism includes a first advancement mechanism for advancing the piston and plunger in unison and a second advancement mechanism for moving the plunger independent of the piston. The assembly further includes a removable handle having a shaft for attachment of a mixing blade and a quick-release connector and a release button for locking and unlocking the mixing blade from the removable handle.Type: GrantFiled: February 8, 2006Date of Patent: December 11, 2007Assignee: Stryker CorporationInventors: Jared P Coffeen, Richard F Huyser, Christopher M Tague, Weston Pernsteiner, Dennis A. Stratton
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Publication number: 20070282441Abstract: Implant devices in the form of a vertebral body replacement for implantation within an intervertebral space between adjacent vertebrae is disclosed for immobilization and support of the adjacent vertebrae in a desired spatial relationship and for promotion of fusion by the adjacent vertebrae. Instruments for insertion and implantation of the implant devices and of fusion material such as bone graft material are disclosed. Methods are disclosed for implantation of the implant devices.Type: ApplicationFiled: May 18, 2007Publication date: December 6, 2007Inventors: Katie Stream, Adam Paltzer, Weston Pernsteiner, Brian Janowski, Douglas Moreland, Domagoj Coric
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Publication number: 20070041267Abstract: A bone cement mixing and delivery assembly is disclosed for mixing a powdered copolymer and a liquid monomer to form a bone cement and delivering the bone cement. The assembly includes a cartridge having a distal end and a proximal end and defining a mixing chamber between the distal end and the proximal end. A transfer mechanism having a cap and a stem supporting a piston and a plunger is connected to the distal end. The transfer mechanism includes a first advancement mechanism for advancing the piston and plunger in unison and a second advancement mechanism for moving the plunger independent of the piston. The assembly further includes a removable handle having a shaft for attachment of a mixing blade and a quick-release connector and a release button for locking and unlocking the mixing blade from the removable handle.Type: ApplicationFiled: February 8, 2006Publication date: February 22, 2007Inventors: Jared Coffeen, Richard Huyser, Christopher Tague, Weston Pernsteiner, Dennis Stratton
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Publication number: 20060259106Abstract: An electrode assembly includes an interconnect for at least a first connector electrode and a second connector electrode, where the interconnect provides the mechanical and/or electrical connection between the electrodes. In one example, the assembly is an elongate member having material removed therefrom along an intermediate portion.Type: ApplicationFiled: May 12, 2005Publication date: November 16, 2006Inventors: Devon Arnholt, Michelle Fangmeier, Samir Gami, Aaron Gebauer, Kyle Hoecke, Weston Pernsteiner, Gregory Sundberg
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Patent number: 7134782Abstract: A bone cement mixing and delivery assembly is disclosed for mixing a powdered copolymer and a liquid monomer to form a bone cement and delivering the bone cement. The assembly includes a cartridge having a distal end and a proximal end and defining a mixing chamber between the distal end and the proximal end. A transfer mechanism having a cap and a stem supporting a piston and a plunger is connected to the distal end. The transfer mechanism includes a first advancement mechanism for advancing the piston and plunger in unison and a second advancement mechanism for moving the plunger independent of the piston. The assembly further includes a removable handle having a shaft for attachment of a mixing blade and a quick-release connector and a release button for locking and unlocking the mixing blade from the removable handle.Type: GrantFiled: March 16, 2004Date of Patent: November 14, 2006Assignee: Stryker InstrumentsInventors: Jared P. Coffeen, Richard F. Huyser, Christopher M. Tague, Weston Pernsteiner, Dennis A. Stratton
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Publication number: 20040174768Abstract: A bone cement mixing and delivery assembly is disclosed for mixing a powdered copolymer and a liquid monomer to form a bone cement and delivering the bone cement. The assembly includes a cartridge having a distal end and a proximal end and defining a mixing chamber between the distal end and the proximal end. A transfer mechanism having a cap and a stem supporting a piston and a plunger is connected to the distal end. The transfer mechanism includes a first advancement mechanism for advancing the piston and plunger in unison and a second advancement mechanism for moving the plunger independent of the piston. The assembly further includes a removable handle having a shaft for attachment of a mixing blade and a quick-release connector and a release button for locking and unlocking the mixing blade from the removable handle.Type: ApplicationFiled: March 16, 2004Publication date: September 9, 2004Inventors: Jared P. Coffeen, Richard F. Huyser, Christopher M. Tague, Weston Pernsteiner, Dennis A. Stratton
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Patent number: 6736537Abstract: A bone cement mixing and delivery assembly is disclosed for mixing a powdered copolymer and a liquid monomer to form a bone cement and delivering the bone cement. The assembly includes a cartridge having a distal end and a proximal end and defining a mixing chamber between the distal end and the proximal end. A transfer mechanism having a cap and a stem supporting a piston and a plunger is connected to the distal end. The transfer mechanism includes a first advancement mechanism for advancing the piston and plunger in unison and a second advancement mechanism for moving the plunger independent of the piston. The assembly further includes a removable handle having a shaft for attachment of a mixing blade and a quick-release connector and a release button for locking and unlocking the mixing blade from the removable handle.Type: GrantFiled: August 27, 2002Date of Patent: May 18, 2004Assignee: Stryker InstrumentsInventors: Jared P. Coffeen, Richard F. Huyser, Christopher M. Tague, Weston Pernsteiner, Dennis A. Stratton
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Patent number: 6547432Abstract: A bone cement mixing and delivery assembly is disclosed for mixing a powdered copolymer and a liquid monomer to form a bone cement and delivering the bone cement. The assembly includes a cartridge having a distal end and a proximal end and defining a mixing chamber between the distal end and the proximal end. A transfer mechanism having a cap and a stem supporting a piston and a plunger is connected to the distal end. The transfer mechanism includes a first advancement mechanism for advancing the piston and plunger in unison and a second advancement mechanism for moving the plunger independent of the piston. The assembly further includes a removable handle having a shaft for attachment of a mixing blade and a quick-release connector and a release button for locking and unlocking the mixing blade from the removable handle.Type: GrantFiled: October 17, 2001Date of Patent: April 15, 2003Assignee: Stryker InstrumentsInventors: Jared P. Coffeen, Richard F. Huyser, Christopher M. Tague, Weston Pernsteiner, Dennis A. Stratton
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Publication number: 20030012079Abstract: A bone cement mixing and delivery assembly is disclosed for mixing a powdered copolymer and a liquid monomer to form a bone cement and delivering the bone cement. The assembly includes a cartridge having a distal end and a proximal end and defining a mixing chamber between the distal end and the proximal end. A transfer mechanism having a cap and a stem supporting a piston and a plunger is connected to the distal end. The transfer mechanism includes a first advancement mechanism for advancing the piston and plunger in unison and a second advancement mechanism for moving the plunger independent of the piston. The assembly further includes a removable handle having a shaft for attachment of a mixing blade and a quick-release connector and a release button for locking and unlocking the mixing blade from the removable handle.Type: ApplicationFiled: October 17, 2001Publication date: January 16, 2003Applicant: Stryker InstrumentsInventors: Jared P. Coffeen, Richard F. Huyser, Christopher M. Tague, Weston Pernsteiner, Dennis A. Stratton