Telescopic Bed Barrier Pivoting Control Mechanism

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Solution Overview

Problem

Current medical bed rail systems are complex, expensive, and have unintuitive actuation mechanisms, posing a risk of accidental activation and blocking, while also being difficult to clean and disinfect, and do not adequately meet safety and operational requirements.

Innovation Solution

A telescopic medical bed rail system with a control mechanism that allows safe and easy actuation, featuring a pivoting control means that unlocks the upper and intermediate parts simultaneously, reducing the risk of involuntary activation and incorporating a design that minimizes protrusions for improved safety and ease of cleaning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional medical bed rail systems are used, then patient safety is compromised due to complex actuation mechanisms, but simplifying the system may reduce functionality or reliability

Engineering Contradiction:

Improvepatient safetyVSAvoidactuation mechanism complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The control means is divided into a first portion fixed to the upper part and a second portion fixed to the intermediate part, with the first portion sliding relative to the second portion. This segmentation allows the control mechanism to be distributed across different components, reducing the complexity at any single location while maintaining the overall locking functionality.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The control means is positioned within the upright structure, with the first portion of the control means inserted into and sliding within the second portion. This nesting arrangement consolidates multiple functional elements into a compact integrated unit, reducing external complexity while preserving the dual-locking capability.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Ease of operation

If protruding actuation devices are used, then operation is easier, but the risk of accidental activation and snagging increases

Engineering Contradiction:

Improveactuation easeVSAvoidaccidental activation risk

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

Instead of having protruding actuation elements that extend outward, the control means is inverted by positioning it within the upright structure. The actuation interface is recessed rather than protruding, which eliminates the snagging hazard while maintaining operability through the sliding mechanism between the first and second portions.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The sliding interface between the first portion (fixed to upper part) and second portion (fixed to intermediate part) acts as an intermediary mechanism. This internal sliding connection provides the actuation function without requiring external protruding elements, thereby mediating between ease of operation and safety by eliminating accidental activation risks.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Reliability

If complex locking mechanisms are used, then reliability is improved, but cleaning and disinfection become difficult

Engineering Contradiction:

Improvelocking reliabilityVSAvoidcleaning ease

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The complex locking functionality is extracted and consolidated into the integrated control means that slides within the upright. By taking out the locking mechanism from a distributed complex system and consolidating it into this sliding interface, the number of separate components and crevices is reduced, making cleaning and disinfection easier while maintaining locking reliability.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The sliding interface between the first and second portions of the control means creates a smooth, continuous surface without sharp crevices or complex joints. This design resembles the principle of smooth surfaces that are easier to clean, allowing disinfectants to flow freely over the locking mechanism without accumulating in difficult-to-reach areas.

Inventive Principle:

Principle #30Flexible shells and thin films

Data Source

PatentEP3421024B1Telescopic post of bed barrier and hospital bed comprising such a barrier

Publication Date: 2020.01.08 WINNCARE FRANCE

Figure 1
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AI summary

Telescopic upright (3) of a medical bed barrier (1), comprising an upper part (8), an intermediate part (9), a lower part (10), a control means (7) comprising a first retaining means suitable for locking the upper part in a raised position relative to the intermediate part, a second retaining means suitable for locking the intermediate part in a raised position relative to the lower part, the control means being mounted to rotate relative to the upper and intermediate parts, such that when the upper and intermediate parts are in a raised position, the pivoting of the control means causes the upper part to be unlocked, or both the upper and intermediate parts to be unlocked.