Patent US3238299A successfully refreshed from Google Patents.
EP0809975A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
An apparatus comprising a plate and a fastener for connecting the plate to a bone portion
Assignee: DePuy Spine LLC
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Filing: 1997-05-16
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Granted: —
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Expires: 2017-05-16
Abstract
Abstract An apparatus comprises a member connectable with a bone portion and having surface means defining an opening. A fastener is extendable through the opening in the member to connect the member to the bone portion. The fastener has a first portion for engaging the bone portion, a second portion, and a longitudinal axis. The second portion of the fastener is expandable into engagement with the surface means defining the opening to prevent relative movement between the fastener and the member. The fastener includes an expander for expanding the second portion into engagement with the surface means defining the first opening. The fastener is positionable in any one of a plurality of positions relative to the member in which the longitudinal axis of the fastener extends at an angle relative to the axis of the opening.
Inventors
- 👤 Edward C. Benzel
- 👤 Hansen A. Yuan
- 👤 Alex Dinello
- 👤 Michael H. Wefers
- 👤 Aaron C. Smith
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 06:26
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/80; A61B17/8033; A61B17/8038; A61B17/84; A61B17/86; A61B17/8685
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
159 words
An apparatus comprising: a member connectable with a bone portion, said member having first surface means defining a first opening having a first axis; a first fastener extendable through said first opening in said member to connect said member to the bone portion, said first fastener having a first portion for engaging the bone portion, a second portion, and a longitudinal axis, said second portion of said first fastener being expandable into engagement with said first surface means defining said first opening in said member to prevent relative movement between said first fastener and said member, said first fastener including means for expanding said second portion of said first fastener into engagement with said first surface means defining said first opening, said first fastener being positionable in any one of a plurality of positions relative to said member in which said longitudinal axis of said first fastener extends at an angle relative to said axis of said first opening.
Claim 2
Dependent Claim
55 words
An apparatus as set forth in claim 1 wherein said first surface means defining said first opening in said member defines a partial spherical recess in said member, said second portion of said first fastener being part spherical, said partial spherical recess in said member receiving said part spherical second portion of said first fastener.
Claim 3
Dependent Claim
66 words
An apparatus as set forth in claim 2 wherein said partial spherical recess has a major diameter, a first portion located on one side of said major diameter and adjacent a surface of said member for facing away from the bone portion, and a second portion located on another side of said major diameter and adjacent a surface of said member for facing the bone portion.
Claim 4
Dependent Claim
60 words
An apparatus as set forth in claim 3 wherein said second portion of said first fastener has a surface facing away from said first portion of said first fastener, said surface on said second portion of said first fastener being located in said first portion of said recess when said second portion of said fastener is received in said recess.
Claim 5
Dependent Claim
96 words
An apparatus as set forth in claim 1 wherein said first fastener includes a threaded sleeve for threadably engaging the bone portion and an expander for expanding said second portion of said first fastener, said sleeve having surface means defining an axially extending opening into which said expander is extendable, said surface means defining said axially extending opening in said sleeve having a tapering surface engageable with a tapering surface on said expander to expand said second portion of said first fastener into engagement with said first surface means defining said first opening in said member.
Claim 6
Dependent Claim
167 words
An apparatus as set forth in claim 1 further including a second fastener for connecting said member to the bone portion, said member including second surface means defining a second opening having a second axis through which said second fastener is extendable to connect said member to the bone portion, said second fastener having a first portion for engaging the bone portion, a second portion, and a longitudinal axis, said second portion of said second fastener being expandable into engagement with said second surface means defining said second opening in said member to prevent relative movement between said second fastener and said member, said second fastener including means for expanding said second portion of said second fastener into engagement with said second surface means defining said second opening, said second fastener being positionable in any one of a plurality of positions relative to said member in which said longitudinal axis of said second fastener extends at an angle relative to said second axis of said second opening.
Claim 7
Dependent Claim
52 words
An apparatus as set forth in claim 6 wherein said second surface means defining said second opening in said member defines a partial spherical recess, said second portion of said second fastener being part spherical, said partial spherical recess in said member receiving said part spherical second portion of said second fastener.
Claim 8
Dependent Claim
95 words
An apparatus as set forth in claim 7 wherein said second fastener includes a threaded sleeve for threadably engaging the bone portion and an expander for expanding said second portion of said second fastener, said sleeve having surface means defining an axially extending opening into which said expander is extendable, said surface means defining said axially extending opening in said sleeve having a tapering surface engageable with a tapering surface on said expander to expand said second portion of said second fastener into engagement with said surface means defining said second opening in said member.
Claim 9
Dependent Claim
52 words
An apparatus as set forth in claim 1 wherein said first fastener is positionable in any one of a plurality of positions relative to said member in which said longitudinal axis of said first fastener extends at a angle of up to approximately 10° relative to said axis of said first opening.
References Cited (Backward Citations)
No citation records indexed.
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