Equine Intubation Adapter With Sliding Backflow Diverter
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Solution Overview
Problem
Existing technologies lack a convenient and portable apparatus for safely conducting equine nasogastric intubation that prevents the ingestion of contaminated air or liquid from the horse's stomach into the operator's mouth during the procedure.
Innovation Solution
A portable equine nasogastric intubation adapter with a backflow diverter mechanism that allows for the safe administration of suction or air while diverting equine stomach reflux away from the operator, featuring a lightweight rigid tubular member with a slidable sleeve and detent mechanism to control the backflow drainage hole.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If nasogastric intubation is conducted without a backflow prevention device, then the procedure is simpler and more direct, but the operator risks ingesting contaminated air or liquid from the horse's stomach
Solution Approach 1:
The patent introduces a backflow prevention device as an intermediary component between the operator and the horse's stomach. This device includes a one-way valve mechanism that allows air to be pushed into the stomach but prevents stomach contents from flowing back into the operator's mouth, thus protecting the operator without significantly complicating the overall procedure
Solution Approach 2:
The patent extracts the backflow prevention function from the main intubation tube by incorporating a separate valve mechanism within the adapter assembly. This allows the protective function to be isolated and independently designed, reducing the complexity of the overall system while maintaining operator safety
2Reliability
If a backflow prevention device is added to the intubation apparatus, then operator safety is improved, but the device becomes less portable and more complex
Solution Approach 1:
The patent merges the backflow prevention valve with the existing adapter components that connect to the intubation tube. By integrating the valve into the adapter assembly rather than adding a separate external device, the overall portability and ease of operation are maintained while still providing backflow protection
Solution Approach 2:
The adapter assembly serves multiple functions: it connects the intubation tube to the horse's stomach, allows air injection, prevents backflow, and can be easily attached and detached. This multi-functionality reduces the need for separate devices and maintains ease of operation
3Productivity
If the intubation tube is kept open for medication delivery, then treatment is continuous, but contaminated liquid can flow back into the operator's mouth
Solution Approach 1:
The one-way valve acts as an intermediary that allows continuous medication delivery while blocking the harmful backflow of stomach contents. The valve is designed to open during air injection and medication delivery but automatically closes when stomach pressure exceeds atmospheric pressure, preventing biohazard exposure
Solution Approach 2:
The backflow prevention valve is designed to preemptively block the potential harmful backflow before it can reach the operator's mouth. The valve mechanism is positioned and oriented to intercept stomach contents before they can travel up the intubation tube during coughing or gastric contractions
Data Source
AI summary
A rigid hollow tubular adapter releasably attached at a longitudinal nozzle end to a flexible tube during equine nasogastric intubation comprising an annular sleeve having a stationary tubular member and a slidable tubular member. The slidable tubular member is delimited at its ends by the stationary tubular member and a detent member disposed between an equine reflux drainage hole and a longitudinal mouthpiece end. Operator's puffs of airflow through a mouthpiece urges the slidable member to slide toward the detent member closing the equine drainage hole to enable passage of medication into the equine stomach. Equine reflux urges the slidable tubular member to slide toward the stationary tubular member opening the reflux drainage hole to divert equine backflow downwardly through the equine backflow drainage hole preventing passage of equine reflux into the operator's mouth.