Surgical Robotic Cement Dispensing Feedback Loop
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Solution Overview
Problem
Current surgical cementoplasty procedures involve significant radiation exposure for operators due to the need for frequent X-ray imaging to ensure proper cement dispensing, which can lead to safety risks and inefficiencies in cement distribution.
Innovation Solution
A surgical robotic system comprising a robotic arm, an injection needle, a localization system, and an imaging system, where a control unit performs a controlled loop of imaging, parameter calculation, and cement dispensing to optimize cement distribution, allowing for real-time adjustments and improved control over the injection process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If frequent X-ray imaging is performed to monitor cement dispensing, then the safety and precision of cement distribution is improved, but the radiation exposure of operators increases
Solution Approach 1:
The system implements a feedback mechanism where imaging data is continuously acquired during cement dispensing, processed to determine actual cement distribution, and used to adjust dispensing parameters in real-time. This closed-loop control ensures precise cement distribution while minimizing the need for frequent operator-intervention X-ray checks, thereby reducing radiation exposure.
Solution Approach 2:
The patent replaces manual operator monitoring and adjustment with an automated robotic system that uses imaging data to control cement dispensing. The robotic arm executes precise movements based on processed imaging information, eliminating the need for operators to be present during X-ray imaging and thus reducing their radiation exposure.
2Adaptability or versatility
If manual monitoring and adjustment of cement injection is performed, then flexibility in handling unexpected situations is improved, but the precision and consistency of cement dispensing deteriorates
Solution Approach 1:
The system continuously acquires imaging data during cement dispensing, processes this data to monitor actual cement distribution, and automatically adjusts dispensing parameters in real-time. This feedback mechanism enables the system to adapt to unexpected situations while maintaining high precision in cement placement, combining the benefits of both manual adaptability and automated precision.
3Manufacturing precision
If real-time imaging and parameter adjustment is implemented, then the control precision of cement dispensing is improved, but the system complexity increases
Solution Approach 1:
The imaging system serves multiple functions: it provides real-time monitoring of cement dispensing, guides robotic arm positioning, and validates treatment outcomes. By consolidating these functions into a single integrated system, the patent reduces overall system complexity while maintaining high precision in cement dispensing control.
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 reduces operator radiation exposure and enhances the precision and safety of cement dispensing by enabling continuous monitoring and adjustment of injection parameters, improving the accuracy of cement distribution and reducing the risk of leakage.
Implementation Method 1
the need for frequent X-ray imaging to ensure proper cement dispensing
Data Source
AI summary
A surgical robotic system includes a robotic arm, an injection needle supported by the robotic arm, a localization system, an imaging system, at least one control unit. The at least one control unit is configured to perform at least one controlled loop carried out after a dispense of cement with the injection needle, in the region of interest of a patient. This controlled loop includes imaging the region of interest, with the imaging system, to provide an updated set of imaging data; using at least partially the updated set of imaging data to calculate an updated set of injection parameters; and using at least one parameter of the updated set of injection parameters to control the dispense of cement through the injection needle. Also disclosed is a method for controlling a surgical robotic system.