Longitudinally adjustable bone plates and method for use thereof

• US 6,364,881 B1
• Filed: 10/25/1999
• Issued: 04/02/2002
• Est. Priority Date: 07/30/1997
• Status: Expired due to Term

• Current Assignee: Zimmer Biomet Spine, Inc. (Zimvie Incorporated)
• Original Assignee: Interpore Cross International LLC (Zimmer Biomet Holdings, Inc.)
• Inventors: Apgar, Mark E., Hayes, Kyle
• Primary Examiner(s): Mancene, Gene
• Assistant Examiner(s): Priddy, Michael B.
• Application Number:
  US09/426,356
• Time in Patent Office: 890 Days
• Field of Search: 606/60, 606/61, 606/69, 606/70, 606/71-73
• US Class Current: 606/284
• CPC Class Codes: A61B 17/8085 with pliable or malleable elements or having a mesh-like structure, e.g. small strips A61B17/8071, A61B17/8076 take precedence

Abstract

The invention relates to a bone plate having at least two and up to ten ringed eyelets for receiving anchoring bone screws in a modified ball-and-socket joint. The eyelets are longitudinally aligned and joined to neighboring eyelets by curvilinear, bendable ribs extending between pairs of eyelets. The ribs are of a longer length than the distance between the external surfaces of adjacent rings which allows the longitudinal spacing of the rings to be increased or decreased by bending the ribs.

Claims

1. A rigid bone plate having at least two eyelets joined by a curved link member, wherein said link member tapers to a narrowest portion having a width Z which is less than its thickness Y.

2. A rigid bone plate as set forth in claim 1, wherein said link member defines an arch.

3. A rigid bone plate as set forth in claim 1, wherein said width Z is at least 10% less than said thickness Y.

4. A rigid bone plate as set forth in claim 3, wherein said width Z is at least 15% less than said thickness Y.

5. A rigid bone plate as set forth in claim 4, wherein said width Z is at least 20% less than said thickness Y.

6. A rigid bone plate as set forth in claim 1, wherein said link member has an inside minor surface member which defines V-shape.

7. A rigid bone plate comprising:

at least 4 eyelets substantially aligned in a single axis and each joined to a successive, continguous eyelet by a link member, said plate having;

a first terminal eyelet and a second terminal eyelet and intermediate eyelets there between, said intermediate eyelets having a necked area formed by adjacent link members; and

said necked area including a cut-out capable of accommodating instrumentation used for bending link members.