Chair-Back Abdominal Thrust Device for Focused Pressure

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing chair backs are narrow and slender, dispersing the pressure generated by abdominal thrusts, thereby delaying effective emergency rescue in cases of choking.

Innovation Solution

An abdominal thrust device with a fastener fixed to a chair back structure, featuring a pressure-bearing portion and a pressing member with a rounded shape, designed to focus and concentrate the thrust pressure effectively.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If abdominal thrusts are performed against a narrow and slender chair back, then the device can be easily integrated with existing furniture, but the applied force disperses and cannot focus pressure effectively

Engineering Contradiction:

Improvechair back contact areaVSAvoidabdominal thrust pressure concentration

Core Design Contradiction:

Area of stationary objectVSStress or pressure

Solution Approach 1:

The patent applies local quality by creating a localized pressure concentration area on the chair back. The abdominal thrust device includes a pressure concentration member with a curved surface that contacts only a specific localized region of the chair back, transforming the dispersed force into focused pressure at the abdominal thrust application point.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent introduces a new dimensional element by adding a pressure concentration member with a curved surface that extends perpendicular to the chair back surface. This creates a three-dimensional pressure distribution pattern that focuses force effectively without requiring a larger contact area on the chair back.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Device complexity

If the chair back structure is used as-is, then no additional components are needed, but the device becomes dislodged easily and cannot remain stable during use

Engineering Contradiction:

Improvenumber of componentsVSAvoiddevice stability

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The patent segments the abdominal thrust device into distinct functional components: a fastener component that attaches to the chair back, and a pressure concentration member that delivers the thrust. This segmentation allows each component to be optimized for its specific function while maintaining overall simplicity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent applies preliminary action by providing pre-attached fastening elements on the chair back before the abdominal thrust device is needed. The fastener component is already secured to the chair back structure, so when emergency occurs, the device is immediately ready for use without requiring additional assembly or stabilization actions.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS20250332063A1Abdominal thrust device

Publication Date: 2025.10.30 YANG KUO HUANG

AI summary

The present disclosure discloses an abdominal thrust device fixed to an upper edge of a chair back, comprising a fastener, at least one fastening element, and a pressing member. The fastener further comprises a pressure-bearing portion, and the fastener is fixed to the chair back structure by the at least one fastening element so as to have the pressure-bearing portion tightly bear against the chair back structure. The pressing member has a rounded blunt shape and is disposed at a top portion of the fastener.