Vitrector Pneumatic Loop With One-Way Valves for Pressure Hold
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Solution Overview
Problem
In pneumatic surgical systems, compressed air can escape from the output line into the surrounding environment when the compressor is idle, leading to contamination and requiring additional time and energy to repressurize, especially during paused operations.
Innovation Solution
Incorporating one-way valves in the supply and output lines to prevent air flow in both directions when the compressor is idle, maintaining consistent pressure and preventing contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the compressor is idle during paused operations, then energy consumption is reduced, but compressed air escapes from the output line into the surrounding environment causing contamination and requiring repressurization
Solution Approach 1:
A one-way valve is introduced as an intermediary component in the pneumatic circuit between the compressor and the surgical tool. This valve allows compressed air to flow in one direction (from compressor to tool) while blocking reverse flow, preventing contamination of the compressed air line when the compressor is idle, and eliminating the need for repressurization during paused operations
2Stability of the object's composition
If the compressor remains running to maintain pressure, then consistent pressure is maintained, but energy consumption increases during paused operations
Solution Approach 1:
The one-way valve acts as a mediator that decouples the compressor operation from the pressure maintenance requirement. When the compressor is idle during paused operations, the valve prevents air leakage that would otherwise require continuous compression, allowing the compressor to stop running while maintaining pressure stability in the output line
3Reliability
If one-way valves are added to prevent air leakage, then contamination is prevented and pressure consistency is maintained, but device complexity increases
Solution Approach 1:
A single one-way valve is introduced as a simple intermediary component that provides reliable pressure maintenance and contamination prevention. The valve's simple structure and passive operation (requiring no external control) minimize the increase in device complexity while achieving the desired reliability improvement
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
Prevents air leakage, reduces contamination, and minimizes energy consumption by maintaining consistent pressure, enhancing system efficiency and reducing downtime during surgical procedures.
Implementation Method 1
the supply line with a one-way valve, which inhibits the escape of air from the input line to the surrounding environment
Implementation Method 2
examples of the present disclosure further provide the output line with another one-way valve, which inhibits the backward flow of air through the compressor while the compressor is idle
Data Source
AI summary
An apparatus includes a compressor, which is configured to compress air and includes an input port and an output port, an output conduit coupled with the output port and configured to receive the air from the compressor, an input conduit coupled with the input port, a switching valve coupled with the output conduit and with the input conduit, and configured to couple a pneumatic surgical cutting tool, alternatingly, with the output conduit and with the input conduit, and a supply conduit coupled with the input conduit and configured to supply the air, to the input conduit, from a surrounding environment. The supply conduit includes a one-way valve configured to inhibit the air from escaping from the input conduit to the surrounding environment when the compressor is idle. Other examples are also described.