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WO1994006360B1 - Anterior thoracolumbar plate - Google Patents

Anterior thoracolumbar plate

Info

Publication number
WO1994006360B1
WO1994006360B1 PCT/US1993/008433 US9308433W WO9406360B1 WO 1994006360 B1 WO1994006360 B1 WO 1994006360B1 US 9308433 W US9308433 W US 9308433W WO 9406360 B1 WO9406360 B1 WO 9406360B1
Authority
WO
WIPO (PCT)
Prior art keywords
plate
superior
inferior
fixation system
width
Prior art date
Application number
PCT/US1993/008433
Other languages
French (fr)
Other versions
WO1994006360A1 (en
Filing date
Publication date
Priority claimed from US07/949,910 external-priority patent/US5324290A/en
Application filed filed Critical
Priority to BR9305643A priority Critical patent/BR9305643A/en
Priority to JP6508138A priority patent/JPH07501257A/en
Priority to EP93921411A priority patent/EP0618785A4/en
Priority to KR1019940701733A priority patent/KR100308588B1/en
Priority to AU48510/93A priority patent/AU669387B2/en
Publication of WO1994006360A1 publication Critical patent/WO1994006360A1/en
Publication of WO1994006360B1 publication Critical patent/WO1994006360B1/en
Priority to NO941902A priority patent/NO941902L/en
Priority to FI942379A priority patent/FI942379A0/en

Links

Abstract

An internal anterior fixation system (10) for treatment of vertebral burst fractures includes an elongated plate (11) which includes integral superior (12), inferior (20) and bridge portions (25). The superior (12) and inferior (20) portions are provided for fixation to corresponding vertebrae while the bridge portion (25) spans between the portions over the affected vertebra. The superior portion (12) includes a pair of generally parallel elongated slots (15) therethrough each having scallops (40, 42) for receiving a bone fixation screw (22). The inferior portion (20) includes a pair of openings (21) through which fixation screws or bolts extend. The slots (15) in the superior portion (12) allow for compression or distraction of the intermediate vertebral region. The openings (21) in the inferior portion (20) are oriented at an oblique angle (A) relative to the axis of the plate to provide a quadrilateral fixation construct. The bridge portion (25) has a width (W) significantly less than the width of the superior and inferior fixation portions.

Claims

AMENDED CLAIMS[received by the International Bureau on 11 March 1994 (11.03.94); original claims 1, 2, 4, 5 and 7 amended; new claims 8 and 9 added remaining claims unchanged (2 pages)]
1. An internal anterior fixation system for treatment of vertebral burst fractures, comprising: an elongated plate having a longitudinal axis and 5 including a superior portion, an inferior portion and a bridge portion integrally spanning between said superior and inferior portions, said superior portion defining a pair of elongated slots therethrough each having a longitudinal slot axis generally parallel to said longitudinal axis of said 0 plate and a constant width along said slot axis, said inferior portion defining a pair of openings therethrough each having a centroid and an axis through said centroid parallel to and offset from said longitudinal axis of said plate and relatively offset from each other; and 5 vertebral fixation elements having a bone engaging portion and a plate engaging portion adapted to extend through either of said slots or said openings in said plate for engaging said plate.
2. The internal anterior fixation system of claim 1, o wherein said centroid of each of said pair of openings in said inferior portion defines a line therebetween, said line defining an oblique angle relative to said longitudinal axis of said plate.
3. The internal anterior fixation system of claim 1, 5 wherein said superior portion and said inferior portion each have a width, and said bridge portion has a width substantially less than the width of said superior and inferior portions.
MrøTOED SHEET (ARTICLE 19)
4. The internal anterior fixation system of claim 1, wherein said pair of elongated slots are arranged such that the longitudinal slot axes of said slots are mutually parallel .
5. The internal anterior fixation system of claim 4, wherein said bridge portion has a width less than the width of either of said superior and said inferior portions, and substantially equal to the distance between the longitudinal slot axes of said slots.
6. The internal anterior fixation system of claim 1, wherein said plate includes a number of scallops defined in the upper surface of said plate about the perimeter of each of said elongated slots.
7. The internal anterior fixation system of claim 6, wherein said plate includes a number of scallops defined in the lower surface of said plate about the perimeter of each of said elongated slots.
8. The internal fixation system of claim 1, wherein said axis through said centroid of each of said pair of openings in said inferior portion is colinear with said longitudinal slot axis of a corresponding one of said elongated slots in said superior portion of said plate.
9. The internal fixation system of claim 1, wherein said plate includes a curved lower surface for contacting a vertebra defined at a curvature to conform to the curvature of an anterior surface of the vertebra.
PCT/US1993/008433 1992-09-24 1993-09-08 Anterior thoracolumbar plate WO1994006360A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
BR9305643A BR9305643A (en) 1992-09-24 1993-09-08 Antero-thoracolumbar plate
JP6508138A JPH07501257A (en) 1992-09-24 1993-09-08 Abdominal chest/lumbar plate
EP93921411A EP0618785A4 (en) 1992-09-24 1993-09-08 ANTERIOR LOMBO-THORACIC PLATE.
KR1019940701733A KR100308588B1 (en) 1992-09-24 1993-09-08 Internal Front Fixation System for Treatment of Spinal Fracture Fractures.
AU48510/93A AU669387B2 (en) 1992-09-24 1993-09-08 Anterior thoracolumbar plate
NO941902A NO941902L (en) 1992-09-24 1994-05-20 Front, thoracolumbar plate
FI942379A FI942379A0 (en) 1992-09-24 1994-05-23 Anterior thoracic fixation plate

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/949,910 1992-09-24
US07/949,910 US5324290A (en) 1992-09-24 1992-09-24 Anterior thoracolumbar plate

Publications (2)

Publication Number Publication Date
WO1994006360A1 WO1994006360A1 (en) 1994-03-31
WO1994006360B1 true WO1994006360B1 (en) 1994-04-28

Family

ID=25489660

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1993/008433 WO1994006360A1 (en) 1992-09-24 1993-09-08 Anterior thoracolumbar plate

Country Status (15)

Country Link
US (1) US5324290A (en)
EP (1) EP0618785A4 (en)
JP (1) JPH07501257A (en)
KR (1) KR100308588B1 (en)
CN (1) CN1088421A (en)
AU (1) AU669387B2 (en)
BR (1) BR9305643A (en)
CA (1) CA2123687A1 (en)
FI (1) FI942379A0 (en)
MX (1) MX9305869A (en)
NO (1) NO941902L (en)
NZ (1) NZ256231A (en)
TW (1) TW314465B (en)
WO (1) WO1994006360A1 (en)
ZA (1) ZA937090B (en)

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