Foldable Bedpan Chair Frame With Adjustable Hygienic Seat Support

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Solution Overview

Problem

Patients and disabled individuals lying in bed face discomfort and hygiene issues when using a bedpan, as they lack a stable and convenient means to sit and clean themselves without soiling their sheets.

Innovation Solution

A foldable chair frame with a fixed base, seat plate, and support assemblies that can be driven to rotate and adjust, forming a foldable space structure with a defecation hole, and including a backrest for improved comfort and fixing elements to prevent rotation, allowing for easy use and storage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If patients use a bedpan directly on the bed, then they can defecate conveniently, but the sheet gets dirty easily and cleaning becomes inconvenient

Engineering Contradiction:
Improveconvenience of bedpan useVSAvoidsheet soiling
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The device segments the bedpan usage function from the bed by introducing a separate foldable chair frame with a dedicated defecation hole seat plate. This allows the bedpan to be positioned precisely over the hole while the rest of the bed surface remains protected, solving the contradiction between ease of operation and prevention of sheet soiling.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The foldable chair frame acts as an intermediary between the patient and the bed. It provides a stable seating structure with a controlled opening that directs waste into the bedpan below, preventing direct contact between waste and the sheet, thus eliminating sheet soiling while maintaining operational convenience.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If a foldable chair frame is provided with multiple support assemblies and driving devices, then the structure can be adjusted and folded for storage, but the device complexity increases

Engineering Contradiction:
Improvefoldable and adjustable capabilityVSAvoidstructure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The chair frame employs dynamic hinge connections between the support assemblies and the seat plate, allowing the structure to transform between folded and unfolded states. This dynamic design provides adaptability for storage and adjustment while maintaining relatively simple structural components that can move rather than requiring complex disassembly mechanisms.

Inventive Principle:
Principle #15Dynamics

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 foldable chair frame provides a stable and hygienic solution by allowing the bedpan to be placed under a defecation hole, preventing sheet soiling and enabling easy cleaning, while being compact for storage, enhancing user comfort and convenience.

Implementation Method 1

a motor, a output shaft of which is connected to a revolving shaft of the front support assembly or the rear support assembly

Methodology Applied
Scientific EffectMotor: Linear Motor

Implementation Method 2

the motor which is provided with a speed reducer, the speed reducer being provided with an output shaft

Methodology Applied
Scientific EffectSpeed reducer: Gear

Implementation Method 3

the driving device includes an air bag provided between the fixed base and the seat plate and an air pump connected to the air bag

Methodology Applied
Scientific EffectAir pressure: Pressure Increase

Implementation Method 4

the driving device is a magnetic force mechanism provided between the fixed base and the seat plate, the magnetic force mechanism including a lower coil fixed on the fixed base, an upper coil fixed below the seat plate, and a driving circuit electrically connected to the upper coil and the lower coil; and a magnetic field produced by the upper coil has a same polarity as that produced by the lower coil produce, so that a repulsive force is produced to lift the seat plate

Methodology Applied
Scientific EffectMagnetic repulsion: Magnetic Field

Data Source

PatentUS10213071B2Foldable chair frame adapted for bedpan
Publication Date: 2019.02.26 TAO GUOMIN
  • US10213071B2 patent drawing
  • US10213071B2 patent drawing
  • US10213071B2 patent drawing

AI summary

Disclosed is a foldable chair frame adapted for a bedpan, comprising: a fixed base; a seat plate, a center of which forms a defecation hole; a support assembly, two ends of which are hinged to the fixed base and the seat plate, respectively, the support assembly comprising a front support assembly and a rear support assembly; a driving device provided for driving the support assembly to rotate and/or driving the seat plate to move up and down, the driving device being connected to the front support assembly or the rear support assembly, or being connected between the fixed base and one of the seat plate, the front support assembly and the rear support assembly. The present invention can provide aid to the patients or the disabled person lying in bed all day to use the bedpan. It also can be folded for easy and convenient storage when not in use.