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Bone screw with multiple thread profiles for far cortical locking and flexible engagement to a bone

A technology of bone screw and thread, applied in the field of bone plate system

Active Publication Date: 2014-01-01
ZIMMER INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, bending of a pin that is too long allows controlled motion at the fracture site with a magnitude sufficient to induce healing of the fracture through scab formation
Although the shape-locked plate-screw configuration employs a similar fixation principle as external fixators, the close proximity of the plate to the bone surface inhibits elastic bending of the screw segment between the plate and bone

Method used

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  • Bone screw with multiple thread profiles for far cortical locking and flexible engagement to a bone
  • Bone screw with multiple thread profiles for far cortical locking and flexible engagement to a bone
  • Bone screw with multiple thread profiles for far cortical locking and flexible engagement to a bone

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Embodiment Construction

[0033] Illustrative embodiments of the present disclosure include, but are not limited to, bone screws, osteosynthesis structures, and related methods of using bone screws and / or osteosynthesis structures.

[0034] Various aspects of the illustrative embodiments will be described using terms commonly used by those skilled in the art to convey the substance of their operation to those skilled in the art. However, it will be apparent to those skilled in the art that alternative embodiments can be realized with only some of the described aspects. For purposes of illustration, specific quantities, materials and structures are set forth to provide a complete understanding of the illustrative embodiments. However, it will be apparent to those skilled in the art that alternative embodiments may be practiced without the specific details. In other instances, well-known features were omitted or simplified in order not to emphasize the illustrative embodiments.

[0035] The term "in on...

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Abstract

Osteosynthesis constructs for treating bone fractures and bone screws for use in such systems are disclosed. The bone screws include a threaded front section configured for engagement with cortical bone, a threaded mid-section and an unthreaded neck section configured for limited movement within the near cortex of the bone. Osteosynthesis constructs of the type disclosed promote secondary healing by allowing for substantially parallel motion at the near and far cortex within the effective motion range for callus formation.

Description

[0001] Cross References to Related Applications [0002] This application is a continuation-in-part of US Patent Application No. 11 / 058,935 filed February 15, 2005, which is hereby incorporated by reference in its entirety. technical field [0003] The present disclosure relates generally to the field of medical devices. In particular, embodiments of the present disclosure relate to, but are not limited to, bone screws with features and / or characteristics that provide form-locked but flexible engagement to bone. More specifically, the present disclosure relates to a bone plating system, including bone screws for use therewith, that is less rigid (compared to existing systems) and therefore more effective and substantially more effective at promoting primary bone healing at the fracture site. Uniform callus formation. Background technique [0004] Typically, bone screws have been used to press osteosynthesis plates directly onto the bone to align and stabilize bone breaks. ...

Claims

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Application Information

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IPC IPC(8): A61B17/80A61B17/86
CPCA61B17/8042A61B17/8057A61B17/16A61B17/863A61B17/80
Inventor M·勃特朗J·多宁克M·基思A·L·科泽
Owner ZIMMER INC
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