Bone Scoring Device with Biasing Mechanism
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Solution Overview
Problem
Manual bone bed preparation for bone grafting is time-consuming and inconsistent, necessitating a more automated and reproducible method to create a consistent bone surface for effective graft integration.
Innovation Solution
A bone scoring device with a scoring member and biasing mechanism that allows for controlled rotation to create bleeding bone and access underlying marrow spaces, featuring a body, shield, and plunger system to store and release rotational energy for consistent scoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual bone bed preparation is performed, then the surgeon can prepare the bone surface, but the process is time-consuming and inconsistent
Solution Approach 1:
The scoring member is designed to automatically rotate and score the bone bed when the device is pressed against the bone surface. The biasing member stores mechanical energy that is released to drive the scoring member through the bone bed, eliminating the need for manual rotation or complex power sources. This self-service mechanism provides consistent scoring without requiring additional time for manual operation.
2Productivity
If automated bone bed preparation is implemented, then consistency and speed are improved, but device complexity increases
Solution Approach 1:
The device is divided into distinct functional components: a body for positioning, a scoring member for cutting, and a biasing member for providing rotational force. This segmentation allows each component to perform its specific function efficiently while keeping the overall device design simple and manageable.
Solution Approach 2:
The biasing member stores mechanical energy in a loaded state and releases it periodically when the device is activated. This periodic action provides the rotational motion needed for scoring the bone bed, achieving automated operation without requiring continuous power input or complex control systems.
3Manufacturing precision
If the scoring member is freely rotatable, then consistent scoring is achieved, but control over the scoring depth and pressure is reduced
Solution Approach 1:
The biasing member is designed with specific mechanical properties that determine the rotational force and speed of the scoring member. By adjusting the parameters of the biasing member (such as spring constant or pre-load), the scoring depth and pressure can be controlled while maintaining consistent rotational motion. This allows precision control without compromising the freedom of rotation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device enhances the consistency and speed of bone bed preparation, improving the integration of bone grafts with native tissues by creating a more effective bone surface for attachment and healing.
Implementation Method 1
a first biasing member connected to and configured to rotate the scoring member
Data Source
AI summary
A bone scoring device having a body, a scoring member configured to engage a bone surface and a first biasing member connected to and configured to rotate the scoring member is provided. The scoring member being axially movable between a first, non-rotatable position, such that the scoring member is engaged with the body and a second rotatable position such that the scoring member is released from engagement with the body and freely rotates. The scoring member having an abrasive surface to score the surface of the bone in which it is put in contact. A method for using the scoring device as well as a kit including the scoring device are also provided.