Tourniquet Loop Configuration for Rapid Limb Compression
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Solution Overview
Problem
Existing tourniquets often take longer to apply and tighten, require multiple steps, do not deploy uniformly along the limb, and may not securely stay in a tightened position, making them less effective for immediate use in emergency situations.
Innovation Solution
A tourniquet design featuring an elongated band with a gripping element and co-operating fastener elements that allow for quick and secure application around a limb, with a loop configuration and directional indicators for intuitive use, enabling rapid deployment and secure tightening without the need for additional tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If existing tourniquet designs are used, then the tourniquet can stop bleeding, but it takes longer to apply and tighten requiring multiple steps
Solution Approach 1:
The patent combines the application and tightening functions into a single integrated operation. The band is designed to be wrapped around the limb and then pulled through the opening in one continuous motion, merging what were previously separate steps into a unified action that achieves both positioning and tightening simultaneously.
Solution Approach 2:
The patent extracts the tightening function from complex mechanical mechanisms and simplifies it to a direct pull-through action. By removing the tail end of the band and forming a loop with an opening, the design eliminates the need for separate tightening mechanisms, knots, or additional components, achieving tightening through the simple act of pulling the band through its own opening.
2Manufacturing precision
If existing tourniquet designs are used, then the tourniquet can be applied, but it does not deploy uniformly along the limb
Solution Approach 1:
The patent applies local quality by creating a uniform distribution of the band material along the limb. The rectangular cross-section and consistent width ensure that pressure is evenly distributed across the limb surface. The loop configuration with the opening positioned at a specific distance from the end ensures uniform deployment as the band wraps around the limb in a controlled manner.
3Reliability
If existing tourniquet designs are used, then the tourniquet can be tightened, but it does not securely stay in a tightened position
Solution Approach 1:
The patent implements self-service through the self-locking loop mechanism. Once the band is pulled through the opening to achieve tightening, the loop configuration naturally prevents further movement or loosening. The geometric arrangement of the loop and opening creates a self-sustaining tightened state that maintains pressure without requiring additional securing components, adjustments, or external intervention.
Data Source
AI summary
A tourniquet for a limb may include an elongated band with first and second ends, a central portion between the first and second ends, and first and second edges extending between the first and second ends. The elongated band defines an opening between the first and second edges spaced from the first end for receiving the second end and the central portion, thereby forming a loop along the elongated band beginning at the opening and ending at a point on the elongated band passing through the opening.