Blood Pressure Cuff-Band Positioning for Stable, Adjustable Wrapping

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing blood pressure measurement devices face challenges in adjusting the wrapping strength of the cuff after attachment to the body and maintaining the relative positional relationship between the cuff and the band, leading to potential displacement and reduced measurement accuracy.

Innovation Solution

A blood pressure measurement device with a restriction member that restricts the relative movement between the cuff and the band in the width direction while allowing adjustment in the longitudinal direction, featuring sheets, fixing members, and restriction portions to secure the cuff position during inflation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the cuff is fixed to the band, then the cuff position is stable, but the relative positional relationship between the cuff and the band cannot be adjusted

Engineering Contradiction:

Improvecuff position stabilityVSAvoidadjustability of relative position

Core Design Contradiction:

Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The connection between the cuff and band is divided into multiple independent connection portions distributed along the longitudinal direction. Each connection portion can independently adjust its position, allowing the cuff to be repositioned relative to the band while maintaining overall structural stability. This segmentation enables both position adjustment and stability without requiring a complete redesign of the connection mechanism.

Inventive Principle:

Principle #1Segmentation

2Measurement precision

If the cuff and band are securely connected, then measurement accuracy is improved, but the wrapping strength cannot be adjusted after attachment

Engineering Contradiction:

Improveblood pressure measurement accuracyVSAvoidadjustability of wrapping strength

Core Design Contradiction:

Measurement precisionVSAdaptability or versatility

Solution Approach 1:

The connection structure transitions from a static fixed connection to a dynamic adjustable connection. The connection portions can be repositioned along the longitudinal direction to change the wrapping strength of the cuff, while maintaining secure connection to ensure measurement accuracy. This dynamic adjustability allows the device to adapt to different users and measurement requirements.

Inventive Principle:

Principle #15Dynamics

3Ease of operation

If the cuff is allowed to move freely, then adjustment of relative position is easy, but the cuff may be displaced in the width direction

Engineering Contradiction:

Improveease of position adjustmentVSAvoidcuff position stability

Core Design Contradiction:

Ease of operationVSStability of the object's composition

Solution Approach 1:

Different regions of the cuff-band connection have different functional properties. The connection portions are positioned at specific locations to restrict movement in the width direction, while the longitudinal direction remains free for adjustment. This local differentiation of movement constraints allows easy position adjustment along the length of the cuff while preventing unwanted lateral displacement.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS20250339039A1Blood pressure measurement device

Publication Date: 2025.11.06 OMRON HEALTHCARE CO LTD

AI summary

A blood pressure measurement device includes: a device body; a first cuff provided at the device body and configured to press a living body; a band provided on an outer surface side of the first cuff and wound around the living body; and a restriction member configured to restrict a relative movement between the first cuff and the band in a width direction and to allow a relative movement between the first cuff and the band in a longitudinal direction.