Explosive Ski Binding Release Mechanism for ACL Injury Prevention
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Solution Overview
Problem
Conventional snow sport bindings are inadequate in preventing anterior cruciate ligament (ACL) injuries and other injuries during rapid events in competitive skiing, as they have limited response times and are not effectively designed to release the boot from the binding in high-force situations.
Innovation Solution
A processor-controlled snow sport safety system featuring a boot binding assembly with a chemical energy storage reservoir and sensors that trigger an explosive release mechanism to rapidly disconnect the boot from the binding, using an actuator assembly and explosive material to generate force for safe disengagement during falls.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If conventional mechanical bindings are used, then the boot remains securely attached during normal use, but the binding cannot release quickly enough during rapid injury events
Solution Approach 1:
The patent replaces the conventional purely mechanical binding system with an electromechanical system that uses an explosive actuator. The explosive device converts chemical energy to mechanical motion instantaneously, achieving release speeds far exceeding mechanical systems while maintaining secure attachment through electronically controlled activation only under injury conditions.
Solution Approach 2:
The patent changes the energy state parameter by storing chemical energy in an explosive actuator that remains dormant during normal use. Upon detection of injury conditions by sensors, the explosive material undergoes rapid chemical reaction, transforming stored chemical energy into instantaneous mechanical force for ultra-fast release.
2Reliability
If manual adjustment of binding release thresholds is used, then the system is simple to operate, but it cannot effectively respond to rapid injury events
Solution Approach 1:
The patent implements a feedback control system where sensors continuously monitor skiing conditions and detect injury events. The sensor data feeds back to a control system that automatically activates the explosive actuator when injury thresholds are exceeded, enabling reliable injury prevention through closed-loop control rather than manual adjustment.
Solution Approach 2:
The binding system performs self-diagnosis and self-release functions through integrated sensors and control circuitry that automatically detect injury conditions and trigger the explosive actuator without requiring manual intervention from the skier during the critical release moment.
3Speed
If explosive material is used for rapid release, then the release speed increases dramatically, but the device complexity increases
Solution Approach 1:
The patent merges multiple functions into integrated components: the explosive actuator serves both as the power source and the release mechanism, while the control system combines sensor processing, decision logic, and actuator control into a unified electronic system. This consolidation achieves ultra-fast release while managing overall system complexity through functional integration.
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 effectively reduces the risk of ACL injuries by quickly releasing the boot from the binding, allowing the skier to separate from the skis before impact, thereby minimizing the risk of entanglement with safety nets or other objects.
Implementation Method 1
a chemical energy storage reservoir containing an explosive material or chemical charge which when exploded releases stored energy from said explosive material, in an exothermic reaction, into said chemical energy storage reservoir
Data Source
AI summary
An apparatus for charge-assisted release of a ski binding includes an explosive material, a battery, an electrical circuit, and a processor. The explosive material is mounted on or in a ski, a ski boot, and/or a ski binding. The electrical circuit extends from the explosive material to the battery, the electrical circuit including a switch having a connected state in which the battery and the explosive material are electrically connected through the switch and a disconnected state in which the battery and the explosive material are electrically disconnected. The processor is electrically coupled to the switch and configured to generate an output signal that transitions the switch from the disconnected state to the connected state in response to an input signal from one or more sensors.