DR. JOHN PATRICK BARRETT, MD
Medical Practice at Lakeland Dr, Jackson, MS
License number
Mississippi 06381
Category
Medical Practice
Type
Orthopaedic Surgery of the Spine
Address
Address
971 Lakeland Dr SUITE 950, Jackson, MS 39216
Phone
(601) 982-7811
(601) 982-3346 (Fax)
(601) 982-3346 (Fax)
Personal information
See more information about JOHN PATRICK BARRETT at radaris.comName
Address
Phone
5155 Wayneland Dr APT F1, Jackson, MS 39211
Professional information
John Patrick Barrett, Jackson MS
Specialties:
Orthopedic Surgeon
Address:
971 Lakeland Dr, Jackson, MS 39216
Education:
University of Mississippi, School of Medicine - Doctor of Medicine
Atlanta Medical Center - Residency - Orthopaedic Surgery
University of Mississippi Medical Center - Residency - Orthopaedic Surgery
Atlanta Medical Center - Residency - Orthopaedic Surgery
University of Mississippi Medical Center - Residency - Orthopaedic Surgery
Board certifications:
American Board of Orthopaedic Surgery Certification in Orthopaedic Surgery
Spinal Fixation System
US Patent:
5395371, Mar 7, 1995
Filed:
Jul 8, 1993
Appl. No.:
8/089399
Inventors:
David F. Miller - Memphis TN
Robert A. Farris - Memphis TN
John P. Barrett - Jackson MS
Robert A. Farris - Memphis TN
John P. Barrett - Jackson MS
Assignee:
Danek Group, Inc. - Memphis TN
International Classification:
A61F 504
US Classification:
606 61
Abstract:
A a spinal fixation system comprises an elongated fixation plate having a bottom side for facing the vertebrae, an opposite top side extending generally parallel to the bottom side, and an elongated slot defined therethrough which extends substantially along the length of the plate. The slot has a lower edge at the intersection of the slot and the bottom surface and an upper edge at the intersection of the slot and the top surface with a number of concave depressions formed at each edge. In one embodiment, the concave depressions at the lower and upper edges of the slot form comparable scalloped surfaces. In another embodiment, the lower edge of the slot forms a single concave surface extending around the entire perimeter of the lower edge of the slot. The system further includes a pedicle screw and a nut for load transmission between the vertebrae and the fixation plate. The pedicle screw includes a threaded nut engaging portion, a threaded bone engaging portion and an intermediate portion therebetween.
Spinal Fixation System
US Patent:
5540690, Jul 30, 1996
Filed:
Feb 15, 1995
Appl. No.:
8/388987
Inventors:
David F. Miller - Memphis TN
Robert A. Farris - Memphis TN
John P. Barrett - Jackson MS
Robert A. Farris - Memphis TN
John P. Barrett - Jackson MS
Assignee:
Danek Group Inc. - Memphis TN
International Classification:
A61F 500
US Classification:
606 61
Abstract:
A a spinal fixation system comprises an elongated fixation plate having a bottom side for facing the vertebrae, an opposite top side extending generally parallel to the bottom side, and an elongated slot defined therethrough which extends substantially along the length of the plate. The slot has a lower edge at the intersection of the slot and the bottom surface and an upper edge at the intersection of the slot and the top surface with a number of concave depressions formed at each edge. In one embodiment, the concave depressions at the lower and upper edges of the slot form comparable scalloped surfaces. In another embodiment, the lower edge of the slot forms a single concave surface extending around the entire perimeter of the lower edge of the slot. The system further includes a pedicle screw and a nut for load transmission between the vertebrae and the fixation plate. The pedicle screw includes a threaded nut engaging portion, a threaded bone engaging portion and an intermediate portion therebetween.
Spinal Fixation System
US Patent:
5545163, Aug 13, 1996
Filed:
Sep 19, 1994
Appl. No.:
8/178304
Inventors:
David F. Miller - Memphis TN
Robert A. Farris - Memphis TN
John P. Barrett - Jackson MS
Robert A. Farris - Memphis TN
John P. Barrett - Jackson MS
Assignee:
Danek Medical, Inc. - Memphis TN
International Classification:
A61F 504
US Classification:
606 61
Abstract:
A spinal fixation system comprises an elongated fixation plate (13) having an elongated slot (21) with a number of concave depressions (28,25) formed at the top and bottom surfaces (19,17) of the plate. The system further includes a pedicle screw (40) and a nut (32) for load transmission between a vertebra and the plate. The pedicle screw includes a threaded nut engaging portion (42), a threaded bone engaging portion (44) and an intermediate portion (46) therebetween which has rigid upper and lower arcuate surfaces (47) that are complementary to the concave depressions in the plate. The nut also includes a rigid lower arcuate surface (36) which is complementary to the upper concave depressions of the plate. In one assembled configuration the plate is clamped between the upper arcuate surface of the pedicle screw and the nut. In an alternative embodiment of the pedicle screw (70), the intermediate portion has an upper and lower arcuate surface (79,77) of different spherical radii of curvature.