WO2002071924B1 - Bone plate and retractor assembly - Google Patents

Bone plate and retractor assembly

Info

Publication number
WO2002071924B1
WO2002071924B1 PCT/US2002/007604 US0207604W WO02071924B1 WO 2002071924 B1 WO2002071924 B1 WO 2002071924B1 US 0207604 W US0207604 W US 0207604W WO 02071924 B1 WO02071924 B1 WO 02071924B1
Authority
WO
WIPO (PCT)
Prior art keywords
bone
portions
gap
securing
relative positions
Prior art date
Application number
PCT/US2002/007604
Other languages
French (fr)
Other versions
WO2002071924A3 (en
WO2002071924A2 (en
Inventor
William Sterett
Kirk J Bailey
Patrick Rousseau
Original Assignee
Electro Biology Inc
William Sterett
Kirk J Bailey
Patrick Rousseau
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Electro Biology Inc, William Sterett, Kirk J Bailey, Patrick Rousseau filed Critical Electro Biology Inc
Priority to EP02717619A priority Critical patent/EP1377241A2/en
Priority to JP2002570889A priority patent/JP4468635B2/en
Priority to AU2002248608A priority patent/AU2002248608A1/en
Publication of WO2002071924A2 publication Critical patent/WO2002071924A2/en
Publication of WO2002071924A3 publication Critical patent/WO2002071924A3/en
Publication of WO2002071924B1 publication Critical patent/WO2002071924B1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
    • A61B17/8095—Wedge osteotomy devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
    • A61B17/025—Joint distractors

Abstract

A system for performing osteotomies includes a bone plate (10) and a retractor assembly (12). The bone plate (10) generally includes a first mounting portion (18) for attachment to a first bone portion (14a) a second mounting portion (20) for attachment to a second bone portion (14b), and an intermediate portion (22) connecting the first mounting portion (18) and the second mounting portion (20). The retractor assembly (12) includes first and second handle members (36, 38) coupled for relative movement about a first pivot axis and first and second jaw members (40, 42) coupled to the first and second handle members (36, 38), respectively.

Claims

AMENDED CLAIMS[received by the International Bureau on 19 November 2002 (19.11.02); original claims 6, 20 and 21 cancelled; original claims 1, 15, 18 and 19 amended; new claims 22-33 added; remaining claims unchanged (6 pages)]
1. A bone plate for securing the relative positions between first and second portions of a bone separated by a gap, the bone plate comprising: a first mounting portion for attachment to the first bone portion; a second mounting portion for attachment to the second bone portion; and an intermediate portion connecting the first mounting portion and the second mounting portion in a first direction, the intermediate portion having a reduced cross-sectional dimension and including first and second shelves extending from a rear surface of the bone plate, the first and second shelves each having a width in a direction generally parallel to the first direction that is substantially greater than a central portion of the intermediate portion.
2. The bone plate for securing the relative positions between first and second portions of a bone separated by a gap of Claim 1 , wherein the intermediate portion has a central portion with a width in a second direction perpendicular to the first direction that is substantially less than a width of a first end of the intermediate portion a width of a second end of the intermediate portion.
3. The bone plate for securing the relative positions between first and second portions of a bone separated by a gap of Claim 1 , wherein the first and second mounting portions both include a plurality of mounting apertures.
4. The bone plate for securing the relative positions between first and second portions of a bone separated by a gap of Claim 3, wherein each of the mounting apertures includes a center spaced from a line coincident with a centerline of the intermediate portion.
5. The bone plate for securing the relative positions between first and second portions of a bone separated by a gap of Claim 1 , wherein the bone plate is curved in the second direction perpendicular to the first direction.
6. Cancelled.
7. The bone plate for securing the relative positions between first and second portions of a bone separated by a gap of Claim 1 , wherein the first and second shelves are disposed immediately adjacent first and second ends of the intermediate portion, respectively.
8. The bone plate for securing the relative positions between first and second portions of a bone separated by a gap of Claim 7, wherein one of the first and second mounting portions includes first and second mounting apertures spaced apart from one another in both the first direction and the second direction.
9. A retractor assembly for establishing a wedge-shaped gap between first and second portions of a bone, the retractor assembly comprising: a first handle member; a second handle member coupled to the first handle member for relative movement about a first pivot axis; a first jaw member having a first end coupled to a first end of the first handle member; a second jaw member having a first end coupled to a first end of the second handle member, the second jaw member including a second end pivotably coupled to a second end of the second jaw member for relative movement about a second pivot axis.
10. The retractor assembly for establishing a wedge-shaped gap between first and second portions of a bone of Claim 9, wherein the second pivot axis is generally perpendicular to the first pivot axis.
1 1. The retractor assembly for establishing a wedge-shaped gap between first and second portions of a bone of Claim 9, wherein the first and second jaws are coupled for relative movement between first and second positions, the first and second jaw members being generally in a common plane in the first position.
12. The retractor assembly for establishing a wedge-shaped gap between first and second portions of a bone of Claim 9, further comprising a coupling member attached to a second end of the first handle member and releasably engageable with a second end of the second handle member, the
16 coupling member operative to maintain a desired angular orientation between the first and second jaw members.
13. The retractor assembly for establishing a wedge-shaped gap between first and second portions of a bone of Claim 12, wherein the coupling member includes indicia indicative of a size of the gap when the first and second jaws are fully inserted into a cut between the first and second bone portions.
14. The retractor assembly for establishing a wedge-shaped gap between first and second portions of a bone of Claim 9, further comprising a biasing arrangement coupled to the first and second handle members and operative for biasing the first and second jaw members to the first position.
15. A bone plate for securing the relative positions between first and second portions of a bone separated by a gap, the bone plate comprising: a first mounting portion for attachment to the first bone portion; a second mounting portion for attachment to the second bone portion; and an intermediate portion connecting the first mounting portion and the second mounting portion in a first direction, the intermediate portion including first and second rearwardly extending shelves for extending into the gap and engaging the first and second portions of the bone, respectively, the first and second rearwardly extending shelves converge toward each other in a second direction, the second direction being generally perpendicular to the first direction.
16. The bone plate for securing the relative positions between first and second portions of a bone separated by a gap of Claim 15, wherein the intermediate portion includes upper and lower surfaces defining the first and second rearwardly extending shelves, respectively.
17. The bone plate for securing the relative positions between first and second portions of a bone separated by a gap of Claim 15, wherein the intermediate portion includes a central section having a reduced horizontal cross-sectional dimension.
18. The bone plate for securing the relative positions between first and second portions of a bone separated by a gap of Claim 17, wherein the central
17 section and the first and second rearwardly extending shelves cooperate to define an I-beam shape in which the first and second shelves are substantially wider than the central section.
19. The bone plate for securing the relative positions between first and second portions of a bone separated by a gap of Claim 15, wherein the first and second shelves converge toward one another in an anterior direction.
20. Cancelled.
21. Cancelled.
22. A bone plate for securing the relative positions between first and second portions of a bone separated by a gap, the bone plate comprising: a first mounting portion for attachment to the first bone portion; a second mounting portion for attachment to the second bone portion; and an intermediate portion connecting the first mounting portion and the second mounting portion in a first direction, the intermediate portion having a reduced cross-sectional dimension, the first and second shelves disposed immediately adjacent first and second ends of the intermediate portion, respectively, the intermediate portion includes a segment linking the first and second shelves, the segment having a width substantially less than a width of the first and second shelves.
23. The bone plate for securing the relative positions between first and second portions of a bone separated by a gap of Claim 22, wherein the intermediate portion has a central portion with a width in a second direction perpendicular to the first direction that is substantially less than a width of a first end of the intermediate portion a width of a second end of the intermediate portion.
24. The bone plate for securing the relative positions between first and second portions of a bone separated by a gap of Claim 22, wherein the first and second mounting portions both include a plurality of mounting apertures.
25. The bone plate for securing the relative positions between first and second portions of a bone separated by a gap of Claim 24, wherein each of the
18 mounting apertures includes a center spaced from a line coincident with a centerline of the intermediate portion.
26. The bone plate for securing the relative positions between first and second portions of a bone separated by a gap of Claim 22, wherein the bone plate is curved in the second direction perpendicular to the first direction.
27. The bone plate for securing the relative positions between first and second portions of a bone separated by a gap of Claim 22, wherein one of the first and second mounting portions includes first and second mounting apertures spaced apart from one another in both the first direction and the second direction.
28. The bone plate for securing the relative positions between first and second portions of a bone separated by a gap of Claim 1 , wherein the reduced cross-sectional dimension is disposed between the first and second shelves.
29. The bone plate for securing the relative positions between first and second portions of a bone separated by a gap of Claim 1 , wherein the intermediate portion includes a segment linking the first and second shelves, the segment having a width substantially less than a width of the first and second shelves.
30. The bone plate for securing the relative positions between first and second portions of a bone separated by a gap of Claim 15, wherein the reduced cross-sectional dimension is disposed between the first and second shelves.
31. The bone plate for securing the relative positions between first and second portions of a bone separated by a gap of Claim 15, wherein the intermediate portion includes a segment linking the first and second shelves, the segment having a width substantially less than a width of the first and second shelves.
32. The bone plate for securing the relative positions between first and second portions of a bone separated by a gap of Claim 22, wherein the reduced cross-sectional dimension is disposed between the first and second shelves.
33. The bone plate for securing the relative positions between first and second portions of a bone separated by a gap of Claim 22, wherein the intermediate portion includes a segment linking the first and second shelves, the
19 segment having a width substantially less than a width of the first and second shelves.
20
PCT/US2002/007604 2001-03-14 2002-03-13 Bone plate and retractor assembly WO2002071924A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP02717619A EP1377241A2 (en) 2001-03-14 2002-03-13 Bone plate and retractor assembly
JP2002570889A JP4468635B2 (en) 2001-03-14 2002-03-13 Bone plate
AU2002248608A AU2002248608A1 (en) 2001-03-14 2002-03-13 Bone plate and retractor assembly

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/808,260 2001-03-14
US09/808,260 US6565570B2 (en) 2001-03-14 2001-03-14 Bone plate and retractor assembly

Publications (3)

Publication Number Publication Date
WO2002071924A2 WO2002071924A2 (en) 2002-09-19
WO2002071924A3 WO2002071924A3 (en) 2003-01-23
WO2002071924B1 true WO2002071924B1 (en) 2003-03-06

Family

ID=25198302

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/007604 WO2002071924A2 (en) 2001-03-14 2002-03-13 Bone plate and retractor assembly

Country Status (5)

Country Link
US (2) US6565570B2 (en)
EP (1) EP1377241A2 (en)
JP (1) JP4468635B2 (en)
AU (1) AU2002248608A1 (en)
WO (1) WO2002071924A2 (en)

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US6565570B2 (en) 2003-05-20
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WO2002071924A2 (en) 2002-09-19
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US20030195516A1 (en) 2003-10-16
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US20020133157A1 (en) 2002-09-19
US7326218B2 (en) 2008-02-05

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