Optical Bone Fixation Apparatus for Radiation-Free Drill Positioning
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Solution Overview
Problem
Current position indicating apparatuses in medical and construction fields face challenges in accurately indicating positions without radiation exposure and with high precision, often requiring physical force application and limited space and cost flexibility.
Innovation Solution
A position indicating apparatus and bone fixation system utilizing adjustable light radiators and inertial sensors to form an intersection line indicating the drill insertion point, reducing radiation exposure by providing real-time posture correction and intuitive direction guidance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If X-ray or CT imaging is used to acquire position information of bone implant, then position accuracy is improved, but radiation exposure increases
Solution Approach 1:
The patent replaces the mechanical/radiological imaging system (X-ray, CT) with an optical indication system. Light radiators project visual cues that guide drill insertion without requiring radiation-based imaging, thereby eliminating radiation exposure while maintaining positioning accuracy through optical feedback mechanisms.
Solution Approach 2:
The patent introduces light radiators as an intermediary between the operator and the bone implant position. Instead of directly viewing the implant position through radiation imaging, the light radiators provide an intermediate visual indication system that guides the operator to the correct insertion point without exposing anyone to radiation.
2Measurement precision
If drilling is frequently suspended to verify drill blade position, then position accuracy is improved, but operation time increases
Solution Approach 1:
The patent enables continuous visual monitoring of drill blade position through light radiators that provide real-time optical feedback during drilling. This eliminates the need to suspend drilling operations for position verification, allowing the drilling action to continue uninterrupted while maintaining positioning accuracy through continuous visual guidance.
Solution Approach 2:
The patent implements an optical feedback system using light radiators that continuously provide visual information about drill blade position relative to the target insertion point. This real-time feedback allows operators to maintain accurate positioning without stopping the drilling process, thereby reducing operation time while preserving measurement precision.
3Measurement precision
If traditional position indicating apparatus is used, then position indication is provided, but physical force must be applied directly to target and space/cost flexibility is limited
Solution Approach 1:
The patent replaces traditional mechanical position indicating apparatus with an optical system using light radiators. This substitution eliminates the need for physical contact with the target, provides greater flexibility in positioning the indication device, and reduces costs by using readily available optical components rather than complex mechanical measurement systems.
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 system accurately indicates drill insertion points without radiation, reduces insertion errors, and operates within various spatial and cost constraints, enhancing precision and reducing operation time.
Implementation Method 1
a light radiator connected to one end of the arm to radiate light
Data Source
AI summary
Disclosed is a position indicating apparatus including a main body, a first arm connected to one side of the main body based on a symmetric axis of the main body, a second arm connected to another side of the main body based on the symmetric axis, a first light radiator connected to one end of the first arm to radiate a light, and a second light radiator connected to one end of the second arm to radiate a light, wherein the light radiated from the first light radiator and the light radiated from the second light radiator meet and form an intersection of line.