Laparoscopic Force Training With Real-Time Sensor Feedback
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Solution Overview
Problem
Laparoscopic surgery requires specialized training to address unique challenges such as altered force perception and three-dimensional spatial orientation, which are not adequately addressed by traditional training methods, leading to potential tissue damage and insecure surgical knots.
Innovation Solution
A system and method for training laparoscopic surgery that includes a device for determining and indicating forces exerted between laparoscopic tool parts, providing real-time feedback through visual, auditory, and haptic means, and allowing in vitro training to enhance conscious awareness of force application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional open surgery training methods are used for laparoscopic surgery, then basic surgical skills can be taught, but the unique challenges of laparoscopic force perception and spatial orientation are not adequately addressed
Solution Approach 1:
The system incorporates real-time force feedback through sensors that measure the forces applied by trainees during laparoscopic procedures. This feedback is displayed to the trainee, allowing them to adjust their force application in real-time, thereby addressing the unique challenges of laparoscopic force perception and improving the reliability of force application.
Solution Approach 2:
The patent replaces traditional mechanical training methods with an enhanced system that includes electronic sensors, display devices, and software interfaces. This substitution allows for more precise measurement and control of forces, enabling trainees to develop the specific skills needed for laparoscopic surgery that cannot be achieved through traditional methods alone.
2Length of moving object
If laparoscopic instruments are used with standard surgical techniques, then procedures can be performed through small incisions, but force application becomes counterintuitive and difficult to control
Solution Approach 1:
The force feedback system provides real-time information about the forces being applied through the long laparoscopic instruments. This feedback loop helps trainees understand the relationship between their hand movements and the forces transmitted through the instrument, making force control more intuitive despite the instrument's length and articulation.
Solution Approach 2:
The system dynamically adjusts and displays force parameters during the procedure, allowing trainees to understand how forces change as instruments articulate at different depths. This parameter visualization helps trainees develop an intuitive sense of force application despite the counterintuitive mechanics of long instruments.
3Object-affected harmful factors
If indirect vision through camera and screen is used, then surgical trauma is minimized, but depth perception and spatial orientation become complicated
Solution Approach 1:
The system replaces reliance on visual depth perception with electronic force measurement and feedback. By directly measuring forces through sensors in the instruments, the system provides objective information about the surgical environment that compensates for the difficulties of interpreting two-dimensional images, helping trainees navigate three-dimensional spaces more effectively.
4Loss of time
If insufficient force training is provided, then training time is reduced, but tissue damage and insecure knots occur
Solution Approach 1:
The real-time force feedback system allows trainees to receive immediate correction on excessive force application. This continuous feedback enables efficient learning by preventing tissue damage before it occurs, rather than requiring extensive repetitive practice to learn from mistakes, thereby reducing overall training time while ensuring safe force application.
Solution Approach 2:
The system enables self-directed learning by providing trainees with real-time information about their own force application. This self-feedback mechanism allows trainees to autonomously adjust their technique without requiring constant instructor intervention, making the training process more efficient and reducing the time needed to achieve competent force 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
Enhances surgeon skill development by reducing the risk of tissue damage, nerve injury, and insecure knots, improving hand-eye coordination, and ensuring precise force control during laparoscopic procedures.
Implementation Method 1
The device for determining forces exerted between parts of one or more laparoscopic tools may be a pressure transducer
Data Source
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AI summary
A system for training or performing laparoscopic surgery includes a device for determining forces exerted between parts of one or more laparoscopic tools and an indicator means for indicating determined forces exerted between interacting parts to a user. This system is designed to enhance the surgical training process by providing real-time feedback on the forces applied during surgery, thereby aiding in the development of the necessary skills for precise and safe surgical operations. The system may also include a processor for instructing a user to perform a series of specific exercises, which can vary in difficulty, to monitor and estimate individual learning curves, and to teach estimation of the forces exerted.