Modular Pelvic Fixation Device for Junctional Hemostasis
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Solution Overview
Problem
Current hemostatic devices are inadequate for effectively treating hemorrhages in the junctional area, particularly in the pelvic region, where bleeding from great vessels and complex wounds pose significant challenges due to the complexity of injuries and limited research and development in this area, especially compared to limb hemorrhage control.
Innovation Solution
A modular multifunctional pelvic fixation hemostatic device that combines a fixing strap, lock catch, auxiliary fixing assembly, hemostatic assembly, press inflators, perineal pocket, hemostatic excipient pad, and auxiliary compressing assembly to provide comprehensive pelvic fixation, compression hemostasis, and wound dressing, addressing the specific needs of the junctional area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional hemostatic devices are used for junctional area hemorrhage, then limb hemorrhage control is effective, but junctional area hemorrhage control is insufficient
Solution Approach 1:
The pelvic fixation device is designed to perform multiple functions simultaneously: pelvic stabilization through the fixing strap and lock catch, compression hemostasis of great vessels through the hemostatic assembly with press inflators, and wound dressing of perineal and buttock injuries through the perineal pocket and auxiliary compressing assembly. This multi-functional design allows a single device to address the complex combination of injuries typical in junctional area trauma.
Solution Approach 2:
The device is divided into distinct modular components including the fixing strap assembly, hemostatic assembly with press inflators, perineal pocket, and auxiliary compressing assembly. Each module can be independently adjusted and positioned to address specific injury patterns, allowing the device to adapt to various junctional area hemorrhage scenarios while maintaining overall pelvic stabilization.
2Adaptability or versatility
If a single device performs multiple functions, then treatment comprehensiveness is improved, but device complexity increases
Solution Approach 1:
The perineal pocket and auxiliary compressing assembly are positioned within or integrated with the main pelvic fixation structure. The hemostatic assembly is attached to the fixing strap, creating a nested configuration where smaller functional components are housed within or attached to the primary stabilization structure, reducing overall device footprint while maintaining multiple functions.
Solution Approach 2:
The device combines pelvic fixation, great vessel compression, and perineal wound dressing functions into a single integrated system. The fixing strap, hemostatic assembly, and perineal pocket work together as a unified device rather than separate treatments, simplifying the overall treatment approach for junctional area injuries despite the complexity of individual components.
3Reliability
If hemostatic agents are applied to complex wounds, then hemostasis effectiveness is improved, but agent contact completeness is insufficient
Solution Approach 1:
The auxiliary compressing assembly is specifically designed to address localized difficult-to-reach areas within the perineal and buttock wound cavity. It features compressing structures that can be positioned against bone protrusion areas and depression areas to ensure hemostatic agents contact all wound surfaces, including those that would otherwise be inaccessible due to complex wound geometry.
Solution Approach 2:
The perineal pocket serves as an intermediary structure that delivers hemostatic agents directly to the wound cavity. The pocket is positioned to conform to the perineal anatomy and can be filled with hemostatic excipient, which then contacts the wound surface through the pocket structure, ensuring complete agent-wound contact even in complex wound configurations.
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 device stabilizes the pelvic position, effectively compresses great vessels, ensures full contact of hemostatic agents with wounds, and facilitates integrated pelvic fixation and hemostasis, improving treatment outcomes for junctional area hemorrhages.
Implementation Method 1
the hemostatic assembly is disposed on the fixing strap, and is configured to compress great vessels in a junctional area; and the press inflators are connected to the hemostatic assembly, and are configured to adjust a volume of the hemostatic assembly
Implementation Method 2
the first elastic elements are respectively sleeved on outsides of the positioning rods, and each of the first elastic element is configured to adjust a position of the positioning rack inside the limiting bracket, to make the positioning rack be connected to the rack
Implementation Method 3
two ends of the lock catch are respectively disposed on two ends of the fixing strap, and the lock catch is configured to fix a length of the fixing strap wrapped around an outside of the pelvic position of the patient
Data Source
AI summary
A modular multifunctional pelvic fixation hemostatic device is provided, the device includes a fixing strap, a lock catch, an auxiliary fixing assembly, a hemostatic assembly, a press inflator, a perineal pocket, a hemostatic excipient pad and an auxiliary compressing assembly, a patient pelvic position is fixed through the fixing strap and the lock catch, and stability of the fixing strap in the pelvic position is improved through the auxiliary fixing assembly, thus avoiding a movement of the fixing strap during patient transporting and dragging. Great vessels in a junctional area are effectively compressed through the hemostatic assembly, thus ensuring a compression hemostasis effect of the great vessels. The hemostatic excipient pad is in full contact with a wound of the patient through the auxiliary compressing assembly, thus covering and dressing bone protrusions and bone depressions of the patient, and achieving integrated pelvic fixation, wound hemostasis, and dressing.