Blood Pressure Cuff Ring Attachment and Linear Pull-Through Mechanism
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Solution Overview
Problem
Conventional blood pressure measurement cuffs require skill and unnatural movements for self-attachment, making them difficult for individuals with limited flexibility or strength to use effectively.
Innovation Solution
A blood pressure measurement cuff design featuring a belt-shaped body with a ring attachment and hook-and-loop fastener that allows for easy wrapping and attachment in one direction along the circumferential direction, reducing the need for complex maneuvers and maintaining compression efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fold-back type cuff design is used, then the cuff can be attached to the arm, but the measurement subject needs skill and performs unnatural movements for self-attachment
Solution Approach 1:
The cuff design inverts the traditional fold-back attachment method. Instead of folding the cuff back over itself, the leading end is pulled through a ring structure at the trailing end, creating a simple linear attachment path that eliminates complex folding maneuvers and makes self-attachment intuitive and easy.
2Ease of operation
If the cuff is designed with a ring attachment and linear pull-through mechanism, then self-attachment becomes easy, but the structure differs from conventional designs
Solution Approach 1:
The cuff is segmented into distinct functional zones: a trailing end with ring attachment members, a middle section with the air bladder, and a leading end with hook-and-loop fasteners. This segmentation allows each part to perform its specific function efficiently while simplifying the overall attachment mechanism.
Solution Approach 2:
The ring attachment members serve as intermediary structures that facilitate the transition from a linear cuff configuration to a wrapped configuration. These rings act as guides that direct the leading end through the trailing end, mediating the attachment process without requiring complex user maneuvers.
3Ease of operation
If the cuff wraps in one direction along the circumferential direction, then attachment is simplified, but the compression efficiency must be maintained
Solution Approach 1:
The cuff transitions from a dynamic attachment phase to a static compression phase. During attachment, the cuff is pulled through the ring in one direction along the circumferential path. Once attached, the hook-and-loop fasteners secure the cuff to maintain consistent compression force, ensuring reliability while keeping the attachment simple.
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 easy self-attachment by individuals with limited dexterity or strength, enhances attachment ease, and improves the efficiency of air pressurization and compression force distribution, allowing for a wider range of dimensions and reduced material costs.
Implementation Method 1
a hook-and-loop fastener (engagement portion) 103 near another end (leading end) 104f in the length direction of the outer cloth 104
Implementation Method 2
the hook-and-loop fastener 103 is fixed to an opposing portion 104x on the outer cloth 104
Implementation Method 3
air is pumped into or discharged from the air bladder 102 through an air tube using a pump
Implementation Method 4
an air bladder 102 (see FIG. 12(D)) is contained between the outer cloth 104 and an inner cloth (underside cloth) 105 of the cuff 100
Implementation Method 5
a microphone 101 for observing a pulse sound is included at a portion approximately in the center in the length direction
Data Source
AI summary
A blood pressure measurement cuff wrapped a direction along circumferential direction around a measurement site, the blood pressure measurement cuff containing fluid bladder between belt-shaped body composed of inner cloth to be in contact with the measurement site and outer cloth opposing the inner cloth. Ring attachment member attached to a region on inner circumferential end-side of the outer cloth and hook-and-loop fastener provided in a region on outer circumferential end-side of the inner cloth are included. The ring has a temporary fastening structure that allows a region continuous with outer circumferential end of the belt-shaped body to be pulled through ring with arm strength in a direction away from measurement site during attachment and suppresses a case in which the region continuous with the outer circumferential end of the belt-shaped body pulled by the arm strength is pulled back through the ring by elastic force of the measurement site.