Nursing bed for defecation and self-cleaning

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Solution Overview

Problem

Traditional bedpans are inconvenient for patients who need to defecate on a bed, requiring limb movement and posing challenges in excrement removal and cleaning, leading to odor dispersion and germ infection risks.

Innovation Solution

A nursing bed with a bedpan connected to an excreta container, supported by a movable frame that allows defecation without limb movement, and equipped with a cleaning device and warm water supply for immediate washing and excrement removal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the bedpan is fixed under the hospital bed with a hole cover, then the patient's limbs do not need to be moved, but the excrement is left in the bedpan and odor disperses easily

Engineering Contradiction:
Improvedefecation convenienceVSAvoidodor dispersion
Core Design Contradiction:
Ease of operationVSObject-generated harmful factors

Solution Approach 1:

The bedpan is designed as a separate, removable component that can be easily extracted from the bed structure. This allows the excrement to be quickly removed from the bedpan and disposed of, preventing odor dispersion and maintaining hygiene.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The design facilitates quick discarding of excrement by allowing easy removal of the bedpan contents. The bedpan can be rapidly emptied and cleaned, preventing odor accumulation and enabling reuse without prolonged contamination.

Inventive Principle:
Principle #34Discarding and recovering

2Ease of operation

If the bedpan is fixed under the hospital bed, then the patient can defecate without moving limbs, but the bedpan needs to be repeatedly inserted and removed for cleaning which increases nursing burden

Engineering Contradiction:
Improvedefecation convenienceVSAvoidnursing efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The bed system is segmented into fixed components (bed frame, cleaning facilities) and movable components (cushion, bedpan). This segmentation allows the bedpan to remain in place during defecation while enabling rapid access for cleaning by simply moving the cushion, reducing nursing interventions.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The design enables self-service cleaning capabilities where the patient or nursing staff can access the bedpan for cleaning by simply moving the cushion without requiring complete removal and reinstallation of the bedpan, significantly reducing nursing burden.

Inventive Principle:
Principle #25Self-service

3Ease of operation

If the bedpan lid is not tightly sealed, then the patient can access it easily, but the odor of excrement is easily dispersed in the air

Engineering Contradiction:
Improvebedpan accessibilityVSAvoidodor dispersion
Core Design Contradiction:
Ease of operationVSObject-generated harmful factors

Solution Approach 1:

Instead of relying on a sealed lid that would restrict access, the design extracts the bedpan as a separate, easily removable component. This allows the bedpan to be quickly removed or accessed without requiring a tight seal, eliminating odor dispersion while maintaining easy accessibility.

Inventive Principle:
Principle #2Taking out (Extraction)

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

Facilitates easy separation and cleaning of the excreta container, reduces germ infection by using warm water, and minimizes odor dispersion, enhancing user convenience and hygiene.

Implementation Method 1

The electric heater is used to heat the cleaning water to an appropriate temperature to clean the patient's buttocks

Methodology Applied
Scientific EffectHeating: Heating

Data Source

PatentUS11744754B2Nursing bed for defecation and self-cleaning
Publication Date: 2023.09.05 LAI(TW)
  • US11744754B2 patent drawing
  • US11744754B2 patent drawing
  • US11744754B2 patent drawing

AI summary

A nursing bed for defecation and self-cleaning comprises a bed frame, a bed board device, a moveable cushion, a support frame, a bedpan, an excreta container; The bedpan is hung under the movable cushion through a support frame. When the patient wants to defecate, the patient only needs to remove a cushion and make the bedpan mouth of the bedpan facing the defecation hole of the moveable cushion, then the patient can defecate on the nursing bed; and further having a cleaning device a warm water supply device, using an electric heater to heat the cleaning water to an appropriate temperature to clean the patient's buttocks, thereby reducing the infection of germs, and also cleaning the excrement that attached to the bedpan to keeps the bedpan clean.