Septi-cannula Lateral Tube Routing for Surgical Site Clearance
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Solution Overview
Problem
Prior nasal cannulas often obstruct surgical sites due to their design, requiring manual manipulation and taping, which can lead to loose tubes and interrupted oxygen delivery or carbon dioxide sampling during surgical procedures.
Innovation Solution
The nasal cannula is designed with unidirectionally oriented delivery and collection tubes that can be oriented leftwardly or rightwardly, ensuring the tubes do not obstruct the surgical site and are securely positioned on the columella to maintain continuous oxygen delivery and ETCO2 measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the nasal cannula tubes are draped around the patient's ears and joined by a tube clasp, then the nasal prongs can be held in position, but the tubes obstruct the surgical site and require manual manipulation during facial surgery
Solution Approach 1:
The nasal cannula is divided into separate left and right sides, each with independent ear loops and tube clasps. This segmentation allows each side to be independently positioned and secured, enabling the tubes to be routed away from the surgical site while maintaining secure nasal prong placement
Solution Approach 2:
The tube routing is changed from a midline configuration to a lateral configuration, with tubes extending along the sides of the patient's face rather than across the midline. This dimensional change allows the tubes to be positioned in unused spatial dimensions that do not interfere with facial surgical access
2Object-affected harmful factors
If the tube is loosened to move it away from the surgical site, then the tube can be repositioned, but the nasal prongs become loose and oxygen delivery or CO2 sampling is interrupted
Solution Approach 1:
Each side of the nasal cannula has an independent tube clasp that secures only the tube on that side, allowing independent adjustment of tube position without affecting the other side. This segmentation enables tube repositioning away from the surgical site while maintaining secure nasal prong placement through the independent clasp mechanism
Solution Approach 2:
The tube clasps are pre-positioned to secure the tubes along the lateral aspects of the face before surgery begins. This preliminary positioning allows the tubes to be routed away from the surgical site in advance, eliminating the need for manual manipulation and taping during the surgical procedure
3Object-affected harmful factors
If the tube is taped to the patient's face to secure it away from the surgical site, then the tube position is fixed, but the tape cannot adhere properly to the prepped surgical face
Solution Approach 1:
The securing mechanism is segmented into separate tube clasps on each side that independently secure the tubes, eliminating the need for a single midline clasp that would require taping to the prepped surgical face. Each lateral clasp can be independently adjusted and secured without interfering with surgical site preparation
Solution Approach 2:
The tube securing function is extracted from the midline surgical area and relocated to the lateral aspects of the face through separate ear loops and lateral tube clasps. This extraction removes the need for taping to the prepped surgical face, as the clasps secure the tubes in non-surgical areas
Data Source
AI summary
A nasal cannula including a manifold having a delivery channel and a collection channel fluidly connected to a delivery nasal prong for delivering a gas to be inhaled from a patient's nose and to a collection prong for collecting gas exhaled from the patient's nose. The prongs are composed of a resilient material having sufficient memory that allows the prongs to be resiliently spread apart to be inserted into the respective nares of the patient's nose and when released, gently grasp the columella of the patient's nose to secure the cannula in position. The prongs are oriented leftwardly or rightwardly of the channels so that the right or left portions of the patient's face remain unobscured during surgery.