Nasal Probe Flexible Side Skirts Gas Pressure Retention
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Solution Overview
Problem
Conventional nasal probes cause discomfort and trauma to the mucous membrane due to over-tightening and inadequate positioning, leading to lesions, and patient movements result in unwanted probe movement and mucous membrane irritation.
Innovation Solution
The nasal probe features two conduits with flexible side skirts that deform under gas pressure to maintain position and form a seal, reducing the need for a tight retaining lace and protecting the mucous membrane by creating a flexible interface between the probe and nostril.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a retaining lace is used to hold the nasal probe in position, then the probe stability is improved, but patient discomfort and trauma to the mucous membrane worsen
Solution Approach 1:
The invention extracts the retention function from the retaining lace and relocates it to the side skirts of the nasal probe. The side skirts are designed to be deformable under gas jet pressure, allowing them to press against the nostril walls and maintain probe position without requiring external lacing, thereby eliminating mucous membrane trauma caused by tight laces
Solution Approach 2:
The side skirts act as an intermediary element between the gas delivery system and the nostril walls. They transmit the force of the gas jet radially outward to press against the nostril walls, providing both sealing and retention functions while protecting the mucous membrane from direct contact with rigid ducts
2Stability of the object's composition
If the retaining lace is tightened to prevent probe movement, then probe stability is improved, but patient discomfort worsens
Solution Approach 1:
The retention function is extracted from the uncomfortable retaining lace and transferred to the side skirts, which utilize the natural pressure of the incoming gas jet to maintain probe position. This eliminates the need for tight lacing while ensuring probe stability during patient movement
Solution Approach 2:
The side skirts are designed to self-adjust and self-retain based on the gas flow pressure. As respiratory gas enters the probe, it deforms the side skirts radially outward, creating automatic retention and sealing without requiring external adjustment or tight lacing, thereby improving patient comfort
3Productivity
If rigid ducts are used to deliver respiratory gas, then gas delivery efficiency is improved, but mucous membrane lesions worsen
Solution Approach 1:
The invention applies local quality by making only the portions of the probe that contact the nostril walls (the side skirts) flexible and deformable, while the main ducts remain rigid for efficient gas delivery. This localized flexibility protects the mucous membrane without compromising overall gas delivery efficiency
Solution Approach 2:
The side skirts are designed as flexible shells that deform under gas pressure to conform to the nostril walls. This flexibility creates a protective interface between the rigid gas-delivering ducts and the delicate mucous membrane, preventing lesions while maintaining effective gas delivery
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 flexible side skirts ensure a secure seal and reduce discomfort and trauma by maintaining the probe's position and distributing gas pressure, minimizing lesions and allowing for easier patient movement without causing overpressure.
Implementation Method 1
said side skirts are deformable under the effect of a gas jet escaping from said at least one lateral orifice, so as to be applied against the internal wall of the corresponding nostrils
Implementation Method 2
the jet of respiratory gas escaping from the lateral orifice (s) stretches the skirt which deforms slightly and comes to rest against the internal wall
Data Source
Figure 1~4
Figure 5~8
AI summary
The probe (1A) has tubular conduits (3) partially introduced in nares (4) of a nose of a patient and supplied with respiratory gas (G). Flexible lateral tubes (7) are introduced in the nares of the nose of the patient. Each of the tubes is made of silicone. Each conduit includes a lateral port (8) that is arranged in a lateral wall of the conduit, and is in opposite to one of the lateral tubes. The lateral tubes are deformed under the effect of the gas jet to apply the gas jet against an inner wall (4A) of the nares to maintain the probe in the nares.