Bone Drill Guide Arcuate Element for Precise Hardware Insertion

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Solution Overview

Problem

Current bone drill guides face challenges with slippage and difficulty in accurately positioning guide wires during surgical procedures, leading to increased surgery time and potential bone damage due to incorrect placement.

Innovation Solution

A bone drill guide featuring a shaft with an arcuate element and guide base, including peripheral guide bores and an interior channel, designed for firm seating on bones, allowing for precise insertion and alignment of hardware, such as guide wires, screws, and pins, with adjustable features for various bone types and orientations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If guide wires are inserted using free-hand procedure, then flexibility and ease of operation are improved, but positioning precision and reliability deteriorate

Engineering Contradiction:

Improveease of guide wire insertionVSAvoidpositioning precision of guide wire

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

A drill guide serves as an intermediary device between the surgeon and the guide wire insertion process. The drill guide with arcuate element and multiple guide bores provides a structured interface that enables precise positioning while maintaining operational simplicity. The guide base with peripheral guide bores acts as the intermediary structure that translates free-hand operation into precise wire placement.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The drill guide is positioned and secured to the bone surface before guide wire insertion. The arcuate element is pre-configured to match the bone curvature, and guide bores are pre-positioned at optimal locations. This preliminary setup eliminates the need for repeated positioning attempts during wire insertion.

Inventive Principle:

Principle #10Preliminary action

2Measurement precision

If multiple guide wires are inserted to correct positioning errors, then positioning precision is improved, but surgery time and bone damage increase

Engineering Contradiction:

Improvepositioning precision of guide wireVSAvoidsurgery time

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The drill guide is divided into functional segments: the arcuate element for bone engagement, the guide base for structural support, and multiple peripheral guide bores for simultaneous or sequential wire insertion. This segmentation allows each component to be optimized for its specific function while working together to achieve precise positioning in a single setup.

Inventive Principle:

Principle #1Segmentation

3Manufacturing precision

If drill guide is designed with fixed structure, then manufacturing precision is improved, but adaptability to different bone types deteriorates

Engineering Contradiction:

Improvestructural precision of drill guideVSAvoidadaptability to different bone types

Core Design Contradiction:

Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The drill guide incorporates dynamic elements that allow adjustment to different bone configurations. The arcuate element can be positioned at different orientations and angles relative to the guide base, enabling adaptation to various bone curvatures and anatomical sites while maintaining the structural precision of the guide bores.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The drill guide design with arcuate element and multiple peripheral guide bores creates a universal tool that can be applied to different bone types and anatomical locations. The combination of curved engagement surface and multiple positioning options allows a single device design to serve multiple surgical applications across different patient anatomies.

Inventive Principle:

Principle #6Universality (Multi-functionality)

4Reliability

If arcuate element with large contact area is used, then stability and positioning accuracy are improved, but device complexity increases

Engineering Contradiction:

Improvestability of drill guide on boneVSAvoidstructural complexity of arcuate element

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The arcuate element employs a curved surface that matches the natural contour of the bone. This curvature provides a large contact area for stable engagement without requiring complex geometric shapes. The simple arc形 design achieves both stability and ease of manufacturing by utilizing a fundamental geometric form that can be precisely reproduced.

Inventive Principle:

Principle #14Spheroidality (Curvature)

Data Source

PatentUS11213303B2Bone drill guides and methods of use thereof

Publication Date: 2022.01.04 INNOVISION CO LTD

AI summary

The invention features bone drill guides, sleeves, and methods of use thereof in inserting hardware into bones, in particular to repair bone defects. The bone drill guides are designed to seat firmly against bone while allowing translational, rotational, and angular movement during an operation. The bone drill guides also allow for insertion of multiple devices, such as guide wires, into bone at defined and constrained relative position.