Nursing Care Bed With Movable Hip and Thigh Support for Excretion

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Solution Overview

Problem

Conventional beds for nursing care pose challenges as care-dependent individuals struggle to assume a comfortable posture for excretion, making the process difficult and labor-intensive for both the care-dependent person and caregivers, with risks of fouling the mat during colonic irrigation.

Innovation Solution

A bed design featuring a mat unit with adjustable thigh and hip receiving portions, a movable toilet unit, and a care-dependent person lifting and moving device, allowing for easy excretion and colonic irrigation while minimizing the risk of mat fouling, through mechanisms like lifting devices, slide devices, and a vinyl bag system.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a toilet bowl is moved to an opening in the mat, then excretion function is provided, but the care-dependent person cannot assume an easy posture for excretion

Engineering Contradiction:
Improveexcretion functionVSAvoidposture for excretion
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The mat unit is designed with movable components including the upper half body receiving portion that can be raised and lowered, and thigh receiving portions that can be tilted and separated. This dynamic structure allows the mat to adapt to different postures - when raised, it provides support for upper body elevation during excretion, and when thigh portions are tilted outward, it enables a more natural excretion posture without requiring the care-dependent person to strain

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The mat unit is divided into separate functional sections: upper half body receiving portion, hip receiving portion, and lower half body portion with thigh receiving portions. This segmentation allows each part to be independently adjusted - the upper half body portion can be elevated while the lower half remains supported, enabling a posture that facilitates excretion while maintaining comfort

Inventive Principle:
Principle #1Segmentation

2Stability of the object's composition

If the mat remains in place during colonic irrigation, then it serves as a stable surface, but the caregiver risks fouling the mat and finds the procedure difficult

Engineering Contradiction:
Improvemat stabilityVSAvoidcolonic irrigation procedure
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The mat unit can be dynamically adjusted during colonic irrigation - the upper half body receiving portion can be raised to elevate the patient's upper body, and the thigh receiving portions can be tilted and separated to provide caregiver access. This dynamic adjustment allows the mat to remain stable as a support structure while enabling the caregiver to perform procedures easily without fouling the mat surface

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The mat unit utilizes vertical dimension by raising and lowering the upper half body receiving portion, and lateral dimension by separating the thigh receiving portions. This multi-dimensional adjustment creates working space for the caregiver while maintaining the mat's stability as a support base, eliminating the need for the caregiver to work in uncomfortable positions

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Device complexity

If the thigh receiving portions are fixed, then the structure is simple, but the care-dependent person cannot achieve an effortless excretion posture

Engineering Contradiction:
Improvemat structureVSAvoidexcretion posture
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The thigh receiving portions are designed with simple mechanical movement capabilities - they can be tilted outward and separated laterally. This simple dynamic mechanism, achieved through basic linkages and support structures, enables the care-dependent person to achieve an effortless excretion posture by naturally positioning their thighs outward without requiring complex mechanical systems

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS8806680B2Bed for nursing care
Publication Date: 2014.08.19 ISHIDA TAKAYUKI
  • US8806680B2 patent drawing
  • US8806680B2 patent drawing
  • US8806680B2 patent drawing

AI summary

A bed for nursing care comprises a mat unit including a hip receiving portion for supporting a hip portion of a care-dependent person, an upper half body receiving portion for supporting an upper half body portion that is upper than the hip portion, and a lower half body portion for supporting a lower half body portion that is lower than the hip portion; a bed frame unit for supporting the mat unit; and a toilet unit moveable to an opening portion formed when the hip receiving portion is stored in a lower portion. The lower half body portion comprises a thigh receiving portion that supports thigh portions of the care-dependent person, wherein the thigh portion is lifted with rising of the thigh receiving portions.