IV Holder Center of Gravity Offset Post Stability

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Solution Overview

Problem

Existing IV holders are prone to instability and tipping due to the imbalance caused by the weight and height of the IV bag, leading to potential accidents and damage when the patient moves, especially over uneven surfaces.

Innovation Solution

The IV holder design positions the IV bag hook over the center of gravity of the holder, using a curved or offset post to balance the weight of the IV bag, and incorporates dampers to reduce swinging motion, ensuring stability and safety during movement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If the IV bag is positioned high on a linear shaft to enable gravity-driven fluid flow, then the IV bag can be elevated above the patient for proper fluid administration, but the holder becomes unstable and prone to tipping when the patient moves

Engineering Contradiction:
Improvefluid flow capabilityVSAvoidholder stability
Core Design Contradiction:
TemperatureVSStability of the object's composition

Solution Approach 1:

The patent positions the IV bag hook directly over the center of gravity of the holder base, creating a balanced configuration where the IV bag weight is counterbalanced by the base weight. This eliminates the tipping moment that occurs in traditional linear shaft designs, allowing the holder to remain stable even when the patient moves or the IV bag is repositioned.

Inventive Principle:
Principle #8Anti-weight (Counterweight)

2Adaptability or versatility

If the arm extending from the shaft is made longer to accommodate patient movement, then the patient has greater mobility range, but the imbalance increases making the holder more prone to tipping

Engineering Contradiction:
Improvepatient mobilityVSAvoidholder balance
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

By positioning the IV bag hook over the center of gravity rather than extending it on a long linear arm, the design achieves balance without sacrificing mobility. The patient can still move freely while the holder remains stable because the weight distribution is optimized to prevent tipping.

Inventive Principle:
Principle #8Anti-weight (Counterweight)

3Ease of manufacture

If the IV bag is supported on a linear shaft design, then the structure is simple and easy to manufacture, but the holder becomes unstable when encountering floor obstructions or bumps

Engineering Contradiction:
Improvestructural simplicityVSAvoidholder stability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent maintains structural simplicity while improving reliability by repositioning the IV bag hook over the center of gravity. This creates a naturally balanced design that resists tipping when encountering floor obstructions, bumps, or changes in surface, eliminating the reliability issues of traditional linear shaft designs without complicating the manufacturing process.

Inventive Principle:
Principle #8Anti-weight (Counterweight)

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 balanced design reduces the likelihood of the IV holder tipping, providing improved stability and safety for patients, preventing accidents and damage, while allowing easier maneuverability and protection of the IV bag.

Implementation Method 1

The IV bag hook is positioned substantially over a center of gravity of the IV holder when the base is positioned on the floor

Methodology Applied
Scientific EffectCenter of gravity: Gravitation

Implementation Method 2

The post has an offset area so that the post doesn't interfere with an IV bag suspended from the IV bag hook

Methodology Applied
Scientific EffectOffset positioning:

Data Source

PatentUS9119909B1IV holder
Publication Date: 2015.09.01 DIVITO BRIAN P
  • US9119909B1 patent drawing
  • US9119909B1 patent drawing
  • US9119909B1 patent drawing

AI summary

An IV holder includes a base for supporting the IV holder on a floor. A first end of a post extends from the base and a distal second end area of the post has an IV bag hook. The IV bag hook is positioned substantially over a center of gravity of the IV holder when the base is positioned on the floor. The post has an offset area so that the post doesn't interfere with an IV bag suspended from the IV bag hook.