Hemostatic Band Pressure Control for Tool-Free Decompression
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Solution Overview
Problem
Existing hemostatic devices require separate instruments for decompression and fluid reinjection operations, increasing operator labor and risk of incomplete decompression if instruments are lost.
Innovation Solution
A hemostatic device with a control unit featuring first and second valve members and a fluid storage portion allows for simple decompression and reinjection operations without additional instruments, using a first valve member and second valve member to store and release fluid as needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a separate pressure adjusting portion is added to perform decompression adjustment, then decompression operation can be performed without dedicated instruments, but the pressure adjusting portion becomes an obstacle during operation
Solution Approach 1:
The patent merges the pressure adjusting portion with the band body by making it an integrated component rather than a separate attachment. The pressure adjusting portion is constructed with a first wall and second wall that form a unified structure with the band body, eliminating the need for separate dedicated instruments while avoiding operational obstacles through streamlined integration.
Solution Approach 2:
The pressure adjusting portion is segmented into functional components including a first wall, second wall, and multiple through holes arranged at different positions. This segmentation allows independent control of fluid release at various stages, enabling progressive decompression adjustment without requiring a complex external instrument system.
2Reliability
If dedicated instruments are used for decompression operation, then fluid can be discharged from inflatable member, but operator labor increases and risk of incomplete decompression occurs if instruments are lost
Solution Approach 1:
The hemostatic device performs decompression operation through its own integrated pressure adjusting portion without requiring external dedicated instruments. The operator simply manipulates the built-in pressure adjusting portion to discharge fluid from the inflatable member, making the system self-sufficient and eliminating the risk of instrument loss while reducing operator labor.
Solution Approach 2:
The pressure adjusting portion serves multiple functions: it acts as both a structural component of the band body and a functional device for fluid discharge. The same structure that forms part of the band body also contains through holes and walls that enable decompression, eliminating the need for separate dedicated instruments and reducing overall system complexity.
3Productivity
If fluid through holes are provided in pressure adjusting portion, then fluid can be released from inflatable member, but compressive force control becomes less precise
Solution Approach 1:
The pressure adjusting portion contains multiple through holes positioned at different locations rather than a single large opening. This segmentation allows controlled fluid release at different stages of decompression, enabling progressive reduction of compressive force while maintaining precise control through the structured arrangement of multiple smaller openings.
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
Reduces operator labor and risk of incomplete decompression by enabling simple, integrated fluid management within the device.
Implementation Method 1
an inflatable member that is connected to the band body and inflates by a fluid being injected to compress a puncture site
Implementation Method 2
a main body container portion connected in communication with the inflatable member and having a plurality of fluid through holes for releasing part of the fluid contained in the inflatable member
Data Source
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AI summary
To provide a hemostatic device capable of performing decompression operation of an inflatable member and a reinjection operation of a fluid into the inflatable member by simple operation without using a dedicated instrument separate from the hemostatic device. A hemostatic device 100 includes an inflatable member 30 configured to compress a puncture site of a patient, a band body 10 and a hook-and-loop fastener 20 that function as a securing member configured to secure the inflatable member 30 to the puncture site of the patient, and an injection member 50 configured to be able to inject gas (fluid) into a lumen of the inflatable member 30, the injection member 50 includes a connector portion (first protruding portion 71g) for injecting gas, a main body portion including a tube 60 connecting the connector portion and the lumen of the inflatable member 30, and a control unit 70 that controls flow of gas through a lumen of the injection member 50, and the control unit 70 includes a first valve member 71, a second valve member 72 located closer to the inflatable member 30 than the first valve member 71, and a fluid storage portion 73 located between the first valve member 71 and the second valve member 72.