Jet Endoscope Offset Channels for Gas Analysis
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Solution Overview
Problem
Current jet endoscopes lack the capability for unbiased monitoring of respiratory gas parameters during invasive surgical interventions, limiting the adaptation of ventilation measures and introducing errors in gas analysis and pressure measurements.
Innovation Solution
The jet endoscope features offset channels for ventilation gases with different pulsation frequencies, separate channels for gas analysis and pressure measurement, and an additional connection for breathing gas conditioning, ensuring optimal superimposition of ventilation frequencies and maintaining a clear cross-section for instrument insertion, with strategically placed openings for precise measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple channels for ventilation gases with different pulsation frequencies are integrated into the jet endoscope, then the capability for high-frequency ventilation is improved, but the device complexity increases
Solution Approach 1:
The jet endoscope is divided into multiple functional channels: a first channel for high-frequency jet gas, a second channel for normal-frequency ventilation gas, a third channel for gas analysis, and a fourth channel for pressure measurement. This segmentation allows each channel to perform its specific function independently, enabling versatile ventilation capabilities while maintaining manageable device complexity through modular functional design.
2Device complexity
If channels for gas analysis and pressure measurement are combined in the same location, then the device complexity is reduced, but the measurement precision deteriorates due to mutual interference
Solution Approach 1:
The patent extracts the gas analysis function and pressure measurement function into separate, spatially distinct channels. The third channel is dedicated to gas analysis with its own sampling orifice, while the fourth channel is dedicated to pressure measurement with its own orifice. This separation eliminates mutual interference between the two measurement processes, ensuring high measurement precision for both functions simultaneously.
3Ease of operation
If the clear cross-section for instrument insertion is enlarged, then the ease of operation is improved, but the area available for ventilation gas channels is reduced
Solution Approach 1:
The patent utilizes the longitudinal dimension (axial direction) to arrange the four functional channels at different positions along the endoscope length. By distributing channels along the longitudinal axis rather than competing for radial space, the design accommodates multiple ventilation and measurement functions while preserving a sufficiently large clear cross-sectional area at the distal end for the introduction of surgical instruments.
Data Source
Figure 1~2
AI summary
The invention relates to a jet endoscope (1) for artificial respiration and surgical interventions, comprising connections for gas lines whereon various respiration gases having various pulsation frequencies can be connected. At least four connections are provided for at least two channels (11, 12) which are arranged in an offset manner in the direction of the axis of the jet endoscope (1), and which protrude and which form an acute angle with said axis (8) for introducing gases having various pulsation frequencies, and for at least two additional channels (13, 14) which are arranged in a distal manner in relation to the respiration channels (11, 12) for a separate gas analysis and a separate pressure measurement.