Accelerometer Surgical Tracking System for Hip Implant Precision
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Solution Overview
Problem
Current medical and surgical procedures face challenges in precisely positioning medical devices and implants due to variability in skill levels among surgeons and the invasiveness of existing methods, which can lead to unpredictable outcomes and increased healthcare costs.
Innovation Solution
A portable, handheld dual tri-axial accelerometer device is used to create a surgical tracking system that guides medical instruments to precise locations within the body, reducing invasiveness and improving precision without the need for expensive equipment or extensive training, by integrating real-time motion and orientation sensing with electronic health record systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If real-time scanning or robotics is used to guide device placement, then positioning precision is improved, but equipment cost and complexity increase
Solution Approach 1:
The patent replaces complex mechanical imaging systems (CT, MRI, real-time scanning) and robotic systems with a simpler accelerometer-based tracking system. The accelerometer device attached to the medical instrument provides motion and orientation data through mechanical sensing, eliminating the need for expensive imaging equipment while maintaining positioning precision through computational tracking of the instrument's trajectory.
Solution Approach 2:
The patent creates a virtual model of the surgical procedure by tracking and recording the motion and orientation data from accelerometers. This digital copy of the physical instrument movement allows for precise guidance and reconstruction of the surgical path without requiring complex physical imaging equipment, thereby reducing device complexity while maintaining measurement precision.
2Device complexity
If pre-operative templating and physical observation are used, then equipment cost is reduced, but positioning precision and repeatability deteriorate
Solution Approach 1:
The patent implements real-time feedback by continuously monitoring motion and orientation data from accelerometers during the surgical procedure. This feedback mechanism allows the surgeon to receive immediate information about instrument position and orientation, enabling precise adjustments and improving positioning accuracy without requiring complex pre-operative templating or expensive real-time imaging equipment.
Solution Approach 2:
The patent replaces manual physical observation and paper-based templating with electronic accelerometer-based tracking. The accelerometers automatically capture and digitally store motion data, eliminating human error in observation and calculation while providing precise, objective measurement of instrument positioning without increasing equipment complexity.
3Adaptability or versatility
If surgeons with varying skill levels perform procedures, then accessibility is improved, but outcome predictability deteriorates
Solution Approach 1:
The patent enables the surgical system to self-correct for variations in surgeon skill by using accelerometer data to objectively track and record the actual instrument trajectory. The system automatically processes the motion data to ensure precise positioning, compensating for differences in surgeon technique and experience, thereby improving outcome predictability while maintaining accessibility to surgeons of varying skill levels.
Solution Approach 2:
The real-time feedback from accelerometers provides objective guidance that is independent of surgeon skill level. The system continuously monitors and tracks instrument position, providing consistent, data-driven guidance that ensures predictable outcomes regardless of the surgeon's experience, thus reconciling accessibility with reliability.
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
This solution enables highly precise and repeatable positioning of medical instruments, improving patient safety and reducing healthcare costs by providing accurate, real-time guidance and data integration for improved procedural consistency and accessibility.
Implementation Method 1
A portable, handheld dual tri-axial accelerometer device is used to create a surgical tracking system
Data Source
AI summary
A prosthetic hip installation system comprising a reamer, an impactor, a tracking element, and a remote system. The tracking element can be integrated into the reamer or impactor for providing tracking data on the position or orientation. Alternatively, the tracking element can be housed in a separate module that can be coupled to either the reamer or impactor. The tracking element will couple to a predetermined location. Points in 3D space can be registered to provide a frame of reference for the tracking element or when the tracking element is moved from tool to tool. The tracking element sends data from the reamer or impactor wirelessly. The remote system receives the tracking data and can further process the data. A display on the remote system can support placement and orientation of the tool to aid in the installation of the prosthetic component.