IV Pole Stand Foot Brake Mechanism
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Solution Overview
Problem
IV pole stands are top-heavy and prone to tipping or falling over when being operated on, requiring nurses to use one hand for stabilization, which limits their ability to perform tasks like changing IV bags or adjusting infusion rates, and are often contaminated, increasing the risk of disease transmission.
Innovation Solution
A spring-activated stop pad system mounted on wheels allows nurses to easily lock the IV pole stand in place by stepping on it, preventing movement and tipping without needing to actuate a wheel brake, thus freeing both hands for operations and reducing contact with potentially contaminated surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the IV pole stand is made top-heavy to support IV bags and pumps at elevated positions, then the support capability is improved, but the stability deteriorates causing the stand to tip or fall over easily
Solution Approach 1:
The patent applies counterweight principle by positioning the heavy base at the bottom of the IV pole stand to balance the top-heavy configuration. The base weighs approximately 10 pounds and is positioned low to the ground, creating a counterbalancing effect that prevents the stand from tipping over while still supporting IV bags and pumps at elevated positions on the pole.
2Reliability
If a foot-operated brake is installed on one of the wheels to lock the stand, then the mobility control is improved, but the ease of operation deteriorates because the nurse must find the specific wheel with the brake
Solution Approach 1:
The patent applies universality principle by making all four wheels identical and equipotential, with each wheel capable of being locked by a foot-operated brake mechanism. This allows the nurse to activate the brake from any position around the stand, eliminating the need to search for a specific wheel and improving ease of operation while maintaining reliable mobility control.
3Stability of the object's composition
If the nurse holds the IV pole with one hand to prevent tipping during operations, then the stability is improved, but the productivity deteriorates because both hands are not free to perform tasks
Solution Approach 1:
The patent applies self-service principle by designing the stand to be self-stabilizing through its heavy base and low center of gravity, and self-locking through the foot-operated brake system. Once the brake is activated, the stand maintains its own stability without requiring the nurse's hand to hold it, freeing both hands to perform medical tasks and improving productivity.
4Ease of operation
If the IV pole is frequently touched by hospital personnel for operations, then the ease of operation is improved, but the object-generated harmful factors worsen due to bacterial contamination
Solution Approach 1:
The patent applies the taking out principle by removing the handhold function from the IV pole itself and relocating it to the base level where the foot-operated brake is positioned. The nurse can operate the brake with their foot without touching the contaminated pole, extracting the contamination risk from the operation process while maintaining ease of use.
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 system effectively stabilizes IV pole stands, allowing nurses to perform tasks without holding the pole, reducing the risk of contamination and facilitating safer, more efficient medical procedures.
Implementation Method 1
A spring arm is configured to be affixed to the pole and to extend outwardly from the pole and carrying a stop pad such that upon the stop pad being stepped on by a nurse or the like, the spring arm will resiliently deflect downwardly and the stop pad can be pressed against the floor
Implementation Method 2
the stop pad can be pressed against the floor to hold the pole stand in place on the floor
Data Source
AI summary
A stop for an IV pole stand comprising a collar having a central opening for receiving the pole of the IV stand. The front ends of the collar form a split and the front ends of the collar members and are biased closed. The front ends of the collar are shaped to form cam surfaces such that upon front ends of the collar being forcefully pressed against a pole, the cam surfaces force the front ends of the collar open to receive the pole in the central opening. A stop pad is carried on a spring arm cantilevered from the collar such that upon the stop pad being stepped on by a nurse the spring arm will resiliently deflect downwardly and the stop pad will be pressed against the floor to hold the pole stand in place on the floor.