Responsive Pressure Dampers for Medical Pump Pulsation Smoothing
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Solution Overview
Problem
Existing pressure sources, such as pressure pumps, generate undulating pressure that causes inaccuracies in sensitive medical measurements and treatments due to pressure pulsations.
Innovation Solution
A responsive damping system comprising one or more dampeners, each with a mechanism to provide adjustable resistance based on pressure levels, is used to smooth out pressure undulations, utilizing components like poppets, springs, magnets, and electromagnets to reduce pulsations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a pressure pump is used to supply pressure, then pressure can be provided to the medical device, but pressure pulsations are generated that reduce measurement accuracy
Solution Approach 1:
A damping element is introduced as an intermediary component between the pressure pump and the medical device. This damping element absorbs and smooths out pressure pulsations generated by the pump, providing a more stable pressure supply to the medical device while maintaining the necessary pressure levels for operation.
Solution Approach 2:
A feedback mechanism is implemented where pressure sensors monitor the output pressure from the damping element and provide signals to a controller. The controller adjusts the pressure pump operation in real-time to compensate for pulsations and maintain consistent pressure, thereby improving measurement accuracy through closed-loop control.
2Measurement precision
If pressure pulsations are reduced using damping elements, then measurement accuracy improves, but device complexity increases
Solution Approach 1:
The patent employs simple, inexpensive damping elements such as foam or rubber materials that can be easily integrated into the pressure supply line. These passive damping components require no power source, control electronics, or maintenance, providing effective pulsation reduction while minimizing added complexity and cost.
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 reduces pressure pulsations, enhancing the accuracy of medical devices like blood pressure monitors by providing smoother, more consistent pressure.
Implementation Method 1
The spring (301) can be any type of spring known to those of skill in the art, including, but not limited to, compression springs, extension springs, torsion springs, and the like.
Implementation Method 2
The magnet (319) can be any type of magnet known to those of skill in the art, including, but not limited to, permanent magnets, electromagnets, and the like.
Implementation Method 3
In some implementations, each responsive dampener comprises a bellows in connection with an electromagnet configured to provide a resistant force.
Data Source
AI summary
Systems and methods for responsively damping pressure pulsations are provided. Generally, a responsive damping system can comprise one or more responsive dampeners. Responsive dampeners can damp pressure pulsations via a pressure resistor.