US20020045901A1
Expired / Lapsed
US
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Bone plate
Assignee: AO Technology AG
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Filing: 2001-09-06
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Granted: —
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Expires: 2021-09-06
Abstract
Abstract A bone plate includes an upper surface, a bone contacting surface, and at least one hole extending through the upper and bone contacting surfaces. The bone plate defines a longitudinal axis. The at least one hole defines a central axis and is elongated in a direction substantially aligned with the longitudinal axis. The hole may include a threaded portion and a non-threaded portion, and the threaded portion may extend through an angle of between about 190° and about 280° with respect to the central axis.
Inventors
- 👤 Michael Wagner
- 👤 Robert Frigg
- 👤 Robert Schavan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:30
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/80; A61B17/8052; A61B17/8057; A61B17/8004; A61B17/8014
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
81 words
1 . A bone plate defining a longitudinal axis and comprising: an upper surface; a bone contacting surface; and at least one hole extending through the upper and bone contacting surfaces, the hole defining a central axis and being elongated in a direction substantially aligned with the longitudinal axis, wherein the hole includes a threaded portion and a non-threaded portion, and the threaded portion extends through an angle of between about 190° and about 280° with respect to the central axis.
Claim 2
Dependent Claim
81 words
1 . A bone plate defining a longitudinal axis and comprising: an upper surface; a bone contacting surface; and at least one hole extending through the upper and bone contacting surfaces, the hole defining a central axis and being elongated in a direction substantially aligned with the longitudinal axis, wherein the hole includes a threaded portion and a non-threaded portion, and the threaded portion extends through an angle of between about 190° and about 280° with respect to the central axis.
Claim 3
Dependent Claim
30 words
2 . The bone plate of claim 1 , wherein the threaded portion extends through an angle of between about 200° and about 250° with respect to the central axis.
Claim 4
Dependent Claim
44 words
3 . The bone plate of claim 1 , wherein: the threaded portion extends through a first angle at the upper surface; the threaded portion extends through a second angle at the bone-contacting surface; and the first angle is larger than the second angle.
Claim 5
Dependent Claim
31 words
4 . The bone plate of claim 3 , wherein the first angle is between about 200° and about 270°, and the second angle is between about 180° and about 230°.
Claim 6
Dependent Claim
34 words
5 . The bone plate of claim 1 , wherein the hole defines first and second ends spaced apart along the longitudinal axis, and the threaded portion is disposed adjacent one of the ends.
Claim 7
Dependent Claim
33 words
6 . The bone plate of claim 5 , wherein the threaded portion is located closer to a central portion of the bone plate than to an end portion of the bone plate.
Claim 8
Dependent Claim
31 words
7 . The bone plate of claim 1 , wherein the non-threaded portion is configured and dimensioned to engage a substantially spherical screw head and provide compression of fractured bone fragments.
Claim 9
Dependent Claim
22 words
8 . The bone plate of claim 7 , wherein the non-threaded portion includes a concave recessed portion in the upper surface.
Claim 10
Dependent Claim
16 words
9 . The bone plate of claim 8 , wherein the recessed portion is substantially spherical.
Claim 11
Dependent Claim
61 words
10 . The bone plate of claim 1 , wherein: the hole defines a first dimension on the bone-contacting surface that is substantially parallel to the longitudinal axis; the hole defines a second dimension on the bone-contacting surface that is substantially perpendicular to the longitudinal axis; and the first dimension is between 1.1 and 3 times larger than the second dimension.
Claim 12
Dependent Claim
26 words
11 . The bone plate of claim 1 , wherein the threaded portion tapers inward in a direction from the upper surface towards the bone-contacting surface.
Claim 13
Dependent Claim
26 words
12 . The bone plate of claim 11 , wherein the threaded portion conically tapers at a cone angle of between about 5° and about 20°.
Claim 14
Dependent Claim
44 words
13 . The bone plate of claim 1 , further comprising a bone screw including a screw head that is configured and dimensioned to threadably engage the threaded portion and fix the bone screw at a predetermined angle with respect to the bone plate.
Claim 15
Dependent Claim
72 words
14 . A bone plate defining a longitudinal axis and comprising: an upper surface; a bone contacting surface; and at least one hole extending through the upper and bone contacting surfaces, the hole defining a central axis and being elongated in a direction substantially aligned with the longitudinal axis, wherein the hole is at least partially threaded and the threaded portion of the hole tapers inward with respect to the central axis.
Claim 16
Dependent Claim
72 words
14 . A bone plate defining a longitudinal axis and comprising: an upper surface; a bone contacting surface; and at least one hole extending through the upper and bone contacting surfaces, the hole defining a central axis and being elongated in a direction substantially aligned with the longitudinal axis, wherein the hole is at least partially threaded and the threaded portion of the hole tapers inward with respect to the central axis.
Claim 17
Dependent Claim
31 words
15 . The bone plate of claim 14 , wherein the threaded portion conically tapers inward in a direction along the central axis from the upper surface towards the bone-contacting surface.
Claim 18
Dependent Claim
32 words
16 . The bone plate of claim 14 , wherein the threaded portion tapers inward with respect to the central axis by a cone angle of between about 5° and about 20°.
Claim 19
Dependent Claim
61 words
17 . The bone plate of claim 14 , wherein: the hole defines a first dimension on the bone-contacting surface that is substantially parallel to the longitudinal axis; the hole defines a second dimension on the bone-contacting surface that is substantially perpendicular to the longitudinal axis; and the first dimension is between 1.1 and 3 times larger than the second dimension.
Claim 20
Dependent Claim
44 words
18 . The bone plate of claim 14 , further comprising a bone screw including a screw head that is configured and dimensioned to threadably engage the threaded portion and fix the bone screw at a predetermined angle with respect to the bone plate.
Claim 21
Dependent Claim
30 words
19 . The bone plate of claim 14 , wherein the hole is configured and dimensioned to engage a substantially spherical screw head and provide compression of fractured bone fragments.
Claim 22
Dependent Claim
25 words
20 . The bone plate of claim 19 , wherein the hole includes a non-threaded portion having a concave recessed portion in the upper surface.
Claim 23
Dependent Claim
16 words
21 . The bone plate of claim 20 , wherein the recessed portion is substantially spherical.
References Cited (Backward Citations)
No citation records indexed.
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