JEFFREY HOFFMAN
Architects at Sahalee Dr, Anchorage, AK
License number
Alaska AELM14563
Issued Date
Sep 10, 2014
Effective Date
Dec 27, 2015
Expiration Date
Dec 31, 2017
Category
Architects, Engineers and Land Surveyors
Address
Address
8901 Sahalee Dr, Anchorage, AK 99507
Professional information
Jeffrey Hoffman
Specialties:
Engineering
Work:
University of Alaska Anchorage
Intervertebral Implant Devices And Methods For Insertion Thereof
US Patent:
8603141, Dec 10, 2013
Filed:
Nov 12, 2010
Appl. No.:
12/945785
Inventors:
Stephen H. Hochschuler - Paradise Valley AZ, US
Ali Araghi - Phoenix AZ, US
Thomas S. Kilpela - Marquette MI, US
Jeffrey A. Hoffman - Anchorage AK, US
Michael R. Jackson - Hancock MI, US
Russell M. Pietila - Hancock MI, US
Ali Araghi - Phoenix AZ, US
Thomas S. Kilpela - Marquette MI, US
Jeffrey A. Hoffman - Anchorage AK, US
Michael R. Jackson - Hancock MI, US
Russell M. Pietila - Hancock MI, US
Assignee:
Pioneer Surgical Technology, Inc. - Marquette MI
International Classification:
A61B 17/70
US Classification:
606246, 606248, 606252, 606253, 606278
Abstract:
An implant device includes a pair of hook devices and an elongate guide device. The hook devices are configured to be disposed between and engage adjacent vertebral bodies. The elongate guide device is connected to the hook devices and allows for relative movement of at least one of the hook devices to adjust for the geometries of the vertebral surfaces to be engaged by the hook devices.
Low Friction Rod Persuader
US Patent:
8545505, Oct 1, 2013
Filed:
Dec 23, 2010
Appl. No.:
12/977968
Inventors:
Jason P. Sandstrom - Marquette MI, US
Jeffrey A. Hoffman - Anchorage AK, US
Jeffrey D. Vlahos - Marquette MI, US
Jeffrey A. Hoffman - Anchorage AK, US
Jeffrey D. Vlahos - Marquette MI, US
Assignee:
Pioneer Surgical Technology, Inc. - Marquette MI
International Classification:
A61B 17/70
US Classification:
606 86A
Abstract:
Instruments are provided for shifting elongate members, such as spinal rods, with respect to coupling members of spinal fixation systems. The instruments include a low friction drive mechanism having one or more rolling elements that ride along a helical groove or track in order to transform rotational movement of a drive member into linear shifting of a reducer member that shifts the elongate member. A one-way locking mechanism may be provided to selectively prevent unwanted counter-rotation of the low friction drive mechanism. The one-way locking mechanism may include annular ratchet teeth arranged on the exterior of the drive member and a ratchet pawl located adjacent to the teeth and selectively engageable therewith.
Spinal Rod And Screw Securing Apparatus And Method
US Patent:
2011020, Aug 18, 2011
Filed:
Feb 11, 2011
Appl. No.:
13/025715
Inventors:
John White - Marquette MI, US
Daniel Rae Robinson - Marquette MI, US
Matthew F. Hanfelt - Marquette MI, US
Jason P. Sandstrom - Marquette MI, US
Jeffrey A. Hoffman - Anchorage AK, US
Daniel Rae Robinson - Marquette MI, US
Matthew F. Hanfelt - Marquette MI, US
Jason P. Sandstrom - Marquette MI, US
Jeffrey A. Hoffman - Anchorage AK, US
International Classification:
A61B 17/56
US Classification:
606 86 R
Abstract:
A minimally invasive and open surgery surgical system for implanting spinal screw assemblies to be connected by a spinal rod is disclosed. In one form, the system includes an improved tool device for inserting a cap insert into an initial and final locking of a screw assembly and securing a spinal rod inserted through an incision to a vertebra. In another form, the system also includes a screw fixation system that allows greater variability in thread diameter for orthopedic implant for in the spine, iliac crest, or bones.