Foldable Injection Portion for Hemostatic Band Inflation
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Solution Overview
Problem
Existing hemostatic devices require a separate dedicated instrument for inflation, which can lead to unnecessary compression of the puncture site if the injection portion protrudes or is unintentionally closed, causing inefficiency and potential over-compression.
Innovation Solution
A hemostatic device with an integrated, foldable injection portion that reduces space and minimizes the risk of accidental over-inflation by folding after inflation, eliminating the need for a separate instrument and preventing unintended compression.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the injection portion is made larger to accommodate more gas for quick inflation, then the inflation speed is improved, but the injection portion protrudes more and becomes more likely to be unintentionally closed
Solution Approach 1:
The injection portion is designed to be foldable, allowing it to dynamically change its configuration. During the inflation process, the injection portion can be in an extended state to accommodate gas, and after inflation, it can be folded back to a compact state to reduce protrusion and prevent unintentional closure. This dynamic transformation resolves the contradiction between needing space for quick inflation and needing to minimize protrusion to prevent harm.
Solution Approach 2:
The injection portion is divided into multiple segments or sections that can be folded relative to each other. This segmentation allows the injection portion to maintain sufficient internal space for gas accommodation when needed while being able to collapse into a compact form when not in use, thereby addressing both the speed requirement and the safety concern.
2Object-affected harmful factors
If the injection portion is made compact to reduce protrusion and prevent unintentional closure, then the safety is improved, but the space for accommodating gas is reduced
Solution Approach 1:
The injection portion utilizes a dynamic, foldable structure that can transition between a compact state (when not in use) to minimize protrusion and a deployed state (during inflation) to provide sufficient gas accommodation space. This dynamic behavior allows the system to optimize for safety when stationary and for functionality when active.
Solution Approach 2:
The injection portion is designed with a nested structure where segments can be folded inside each other or collapsed into a compact configuration when not in use. This nesting approach allows the injection portion to maintain minimal protrusion while still providing adequate internal volume for gas accommodation when deployed, resolving the contradiction between compactness and capacity.
3Measurement precision
If a separate dedicated instrument is used for inflation, then the precision of hemostasis is improved, but the operation complexity and time are increased
Solution Approach 1:
The injection portion is integrated directly into the hemostatic device, merging the inflation function with the hemostasis device itself. This integration eliminates the need for separate dedicated instruments while maintaining the precision of hemostasis through controlled gas injection. The unified design reduces operational complexity and time while preserving the required precision for effective hemostasis.
Solution Approach 2:
The hemostatic device is designed with multi-functionality, where the integrated injection portion serves both as part of the hemostasis mechanism and as the inflation system. This universal design allows the single device to perform multiple functions (hemostasis and inflation) without requiring additional specialized instruments, thereby reducing complexity while maintaining precision.
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
Enables efficient inflation without a separate instrument and reduces the likelihood of over-compression by ensuring the injection portion is compact and less likely to be inadvertently pressed, thus providing controlled and accurate hemostasis.
Implementation Method 1
an injection portion that can inject gas into the inflation portion
Implementation Method 2
that is inflated by injecting a fluid so as to compress the puncture site
Data Source
AI summary
A hemostatic device has a band for being wrapped around a puncture site P of a wrist W, securing means for securing the band in a state where the band is wrapped around the wrist, an inflation portion that interlocks with the band, and that is inflated by injecting gas, and an injection portion that can inject gas into the inflation portion. The injection portion is disposed in the band, and is foldable so as to decrease a space formed inside the injection portion. The hemostatic device can thus inflate an inflation portion without using a separate dedicated instrument, which can prevent a hemostasis-requiring site from being unintentionally compressed more than necessary.