Arm pillow

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Solution Overview

Problem

Existing arm pillows do not effectively support objects on a user's arm without impeding blood circulation through the arm, as they often constrict blood vessels due to lack of cushioning and load distribution mechanisms.

Innovation Solution

A pillow design featuring a resiliently compressible main body with integrated rigid blocks and inserts, allowing for load distribution and cushioning, while maintaining airflow and flexibility, to prevent vessel constriction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Force

If a pillow is worn on an individual's arm for supporting babies or other objects, then the load is supported on the arm, but blood circulation through the arm is impeded due to constriction of blood vessels

Engineering Contradiction:

Improveload support capabilityVSAvoidblood circulation impairment

Core Design Contradiction:

ForceVSObject-affected harmful factors

Solution Approach 1:

The pillow is divided into multiple rigid blocks (first blocks and second blocks) that are laterally spaced apart, creating gaps between them. This segmentation allows the load to be distributed across multiple contact points rather than concentrated in one area, reducing pressure on blood vessels while still supporting the weight of babies or objects.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The pillow incorporates resilient inserts positioned within gaps between the rigid blocks and adjacent to the arm. These inserts provide localized cushioning exactly where the arm contacts the pillow, protecting blood vessels from constriction while the rigid blocks bear the primary load. This creates different functional zones: rigid blocks for load bearing and soft inserts for circulation protection.

Inventive Principle:

Principle #3Local quality

2Force

If rigid members are used to distribute load on the arm, then load distribution is improved, but cushioning of the arm and load is reduced

Engineering Contradiction:

Improveload distributionVSAvoidcushioning comfort

Core Design Contradiction:

ForceVSEase of manufacture

Solution Approach 1:

The pillow merges rigid blocks and resilient inserts into a single integrated structure. The rigid blocks are coupled to a main body that contains resilient material, and inserts are mounted opposite the main body across the blocks. This combination allows the rigid components to distribute load while the resilient components provide cushioning comfort, achieving both load distribution and comfort simultaneously.

Inventive Principle:

Principle #5Merging (Combining)

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 design ensures comfortable support of objects on the arm by distributing compressive forces, reducing discomfort and maintaining blood circulation, suitable for various applications including head support, breastfeeding, and sleeping positions.

Implementation Method 1

a main body 12 having a resiliently compressible material configured for cushioning an arm 86 of a user 84

Methodology Applied

Scientific EffectElasticity: Elasticity

Data Source

PatentUS12551038B2Arm pillow

Publication Date: 2026.02.17 CLARKE COREY

AI summary

A pillow assembly for supporting objects on a user's arm without impeding blood circulation through the arm includes a main body comprising a resiliently compressible material. Rigid blocks are coupled to a top side of the main body, and inserts are mounted atop the rigid blocks. The main body is bent to surround the arm with the inserts. Loads may be exerted on the pillow assembly through the main body, rigid blocks, and inserts while the pillow assembly is worn by the arm to support the loads on the arm without limiting blood flow.