Sensor-Based Alignment for Total Knee Arthroplasty
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Solution Overview
Problem
Current alignment devices for total knee arthroplasty (TKA) are either imprecise, expensive, or both, leading to suboptimal joint alignment and increased surgical time, which strains the healthcare system and affects patient outcomes.
Innovation Solution
A system utilizing sensor units to detect and communicate the three-dimensional position and orientation of bones and cutting guides to a digital processor, enabling precise and accurate alignment of anatomical structures and surgical tools during TKA procedures, reducing the need for custom components and expensive equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If current alignment devices are used for total knee arthroplasty, then the procedure can be performed, but the alignment precision is insufficient and costs are high
Solution Approach 1:
The patent replaces complex mechanical alignment devices with a sensor-based system that uses electronic sensors, wireless transmitters, and digital processors to detect and communicate bone and cutting guide positions, eliminating the need for expensive mechanical alignment equipment while achieving superior precision
Solution Approach 2:
The system creates a digital representation of the physical surgical environment by using sensors to detect the three-dimensional position and orientation of bones and cutting guides, transmitting this data wirelessly to reconstruct the surgical field digitally for precise alignment measurement and control
2Productivity
If traditional alignment methods are used, then surgical procedures can be completed, but surgical time is increased
Solution Approach 1:
The sensor units continuously detect and transmit position and orientation data throughout the surgical procedure, allowing for real-time alignment monitoring and adjustment without interrupting the surgical flow, thereby reducing total surgical time while maintaining precision
Solution Approach 2:
The system provides real-time feedback by continuously monitoring the position and orientation of bones and cutting guides through wireless data transmission, enabling surgeons to make immediate adjustments to achieve optimal alignment without time-consuming trial and error
3Measurement precision
If custom components and expensive equipment are used to improve alignment, then alignment accuracy may improve, but costs increase significantly
Solution Approach 1:
The sensor-based alignment system is universal and can be applied to various bone types and surgical scenarios without requiring custom components for each patient, as the sensors adaptively detect and communicate spatial information for different anatomical structures
Solution Approach 2:
The system uses relatively inexpensive sensor units with wireless transmitters that can be used temporarily during surgery and then discarded or reused, replacing the need for expensive custom-made alignment devices and equipment
Data Source
AI summary
Systems and methods for providing alignment in total knee arthroplasty operations are provided herein. The systems and methods generally include a plurality of sensors coupled to a patient's bones or other surgical tools, the sensors detect their position and orientation in space and communicate this information to a processor. The processor can utilize the information to display data to a surgeon or other user regarding the position, angle, and alignment of a patient's bones, surgical tools, and the reconstructed knee joint.