Respiratory Conduit with Rough Texture and Nested Pipe
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional respiratory auxiliary devices cause discomfort and potential injury to small children and infants due to their design, which can lead to skin adhesion and suppressed facial skin growth, as well as entanglement and pressure issues with the pressure-measuring pipe and smooth silicone conduits.
Innovation Solution
A respiratory auxiliary device featuring a first conduit with a concave chordal wall section and nasal prongs that do not press against the philtrum, along with a fixing unit including a support frame and positioning member to secure the device comfortably on the head, and a pressure-measuring pipe positioned within a second conduit to prevent entanglement and improve pressure measurement accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the first conduit is made of silicone with a smooth outer surface, then the conduit is soft and flexible, but it easily presses against and adheres to the patient's philtrum, causing discomfort and potential skin injury
Solution Approach 1:
The patent applies different surface characteristics to different parts of the conduit. The outer surface of the first conduit is designed with a rough texture specifically at the portion that contacts the patient's face, while maintaining smoothness in other areas. This local differentiation allows the conduit to provide sufficient friction to prevent adhesion to the skin while retaining overall flexibility and softness.
Solution Approach 2:
The patent incorporates a releasing agent or lubricant layer on the outer surface of the conduit before use. This preliminary application of a releasing substance prevents the silicone material from directly adhering to the patient's skin, thereby avoiding discomfort and potential injury while preserving the conduit's inherent softness and flexibility.
2Ease of operation
If the pressure-measuring pipe is exposed and external, then it is easy to access for measurement, but it is easily entangled around the second conduit
Solution Approach 1:
The patent integrates the pressure-measuring pipe inside the second conduit, with the pressure-measuring pipe having a smaller diameter than the second conduit's internal diameter. This nested configuration allows the pressure-measuring pipe to be protected within the second conduit, preventing entanglement while still enabling pressure measurements to be taken through the wall of the second conduit or at designated access points.
Solution Approach 2:
The patent introduces a flexible membrane or wall structure as an intermediary between the pressure-measuring pipe and the external environment. This intermediary allows pressure measurements to be transmitted through the second conduit's wall while maintaining the sealed, non-entangled position of the pressure-measuring pipe inside the conduit.
3Adaptability or versatility
If the hook fasteners are sleeved on the second conduits to engage loop fasteners, then the second conduits can be positioned on opposite sides of the patient's head, but the hook fasteners easily move upwardly and downwardly when the patient turns their head
Solution Approach 1:
The patent employs a dynamic fastening system where the hook fasteners are designed to move along with the patient's head movements rather than resisting them rigidly. The hooks are attached to the second conduits in a manner that allows controlled movement, maintaining engagement with the loop fasteners while accommodating natural head turning motions, thus preserving both positioning capability and connection stability.
Solution Approach 2:
The patent uses flexible mounting structures or elastic elements between the hook fasteners and the second conduits. These flexible components allow the fastening system to adapt to head movements, maintaining reliable engagement while preventing excessive movement that would compromise stability. The flexibility absorbs the dynamic forces generated during head turning.
Data Source
AI summary
A respiratory auxiliary device includes a first conduit provided with a pair of nasal prongs and having two opposite end portions, two second conduits connected fluidly and respectively to the end portions, and a pressure-measuring pipe adapted for connection with a pressure-measuring device. One of the second conduits is adapted for discharging air exhaled by a patient. The other one of the second conduits is adapted to be connected to an air supply device. The pressure-measuring pipe is disposed within said one of the second conduits, and has one end extending into the first conduit in proximity to the nasal prongs.