Sinonasal Secretion Collection Tip for Controlled Sample Volume
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Solution Overview
Problem
Existing sinonasal secretion sampling methods are invasive, uncomfortable, prone to contamination, and lack volumetric control, leading to inaccurate diagnostic results due to variable sample volumes and potential introduction of contaminants.
Innovation Solution
A device with a handle and elongated support member, featuring frame members and sample collection members that move between open and closed positions, allows for precise collection of a predetermined volume of nasal secretion samples using absorptive or non-absorbent mesh strips with visual indicators, ensuring accurate sampling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional swabbing techniques are used to collect sinonasal secretion samples, then sample collection is achieved, but the procedure is invasive and uncomfortable for the patient
Solution Approach 1:
The patent introduces a specialized collection device as an intermediary tool that combines a soft, comfortable tip for patient insertion with a controlled sample collection mechanism. This mediator device allows the patient to perform self-collection comfortably while ensuring adequate sample volume through the controlled expansion and rupture mechanisms, thereby resolving the contradiction between patient comfort and sample quality.
Solution Approach 2:
The patent employs parameter changes by controlling the physical state transitions of the collection tip - from a compressed, flexible state for comfortable insertion to an expanded state for sample collection. The controlled rupture of the collection chamber at a predetermined volume ensures consistent sample quantity while maintaining patient comfort throughout the procedure.
2Quantity of substance
If abrasive sampling techniques are used to obtain sinonasal secretion samples, then sample collection is achieved, but contaminants such as blood are introduced into the sample
Solution Approach 1:
The patent replaces the traditional mechanical abrasive swabbing action with a controlled fluid dynamics-based collection system. The collection device uses pressure differential and controlled rupture mechanisms to obtain samples without mechanical friction or abrasion, thereby preventing contamination from blood and other substances while ensuring adequate sample volume.
Solution Approach 2:
The invention introduces a protective intermediary collection chamber between the patient's sinonasal cavity and the sample container. This intermediate structure allows sample collection through controlled rupture rather than direct contact swabbing, preventing contamination while maintaining sufficient sample quantity for diagnostic testing.
3Measurement precision
If endoscopic observation is used to collect sinonasal secretion samples, then diagnostic accuracy is improved, but the procedure is invasive and may require patient sedation
Solution Approach 1:
The patent enables self-service sample collection where the patient can independently perform the sampling procedure using the provided device. The straightforward insertion and activation mechanism eliminates the need for endoscopic procedures and medical personnel intervention, thereby maintaining diagnostic accuracy while significantly improving patient comfort and eliminating the need for sedation.
Solution Approach 2:
The invention extracts the essential sampling function from the complex endoscopic procedure. By isolating the core sample collection capability into a simple, self-contained device that can be inserted and activated by the patient, the system achieves diagnostic accuracy without the invasive elements and sedation requirements of endoscopic observation.
4Quantity of substance
If existing sampling devices are used to collect sinonasal secretion samples, then sample collection is achieved, but volumetric control is lacking leading to variable sample volumes
Solution Approach 1:
The patent incorporates feedback mechanisms through visual indicators that provide real-time information about sample collection progress. The collection chamber is designed with volume indicators that feedback to the user on the amount of sample collected, enabling precise volumetric control and ensuring consistent sample volumes suitable for diagnostic testing.
Solution Approach 2:
The invention uses parameter changes in the physical design of the collection chamber to control sample volume. The chamber is engineered with specific volume capacity and rupture pressure characteristics that automatically regulate the sample quantity collected, ensuring manufacturing precision and consistency across all samples.
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
Enables non-abrasive, comfortable sampling with controlled sample volumes, reducing contamination and enhancing assay accuracy by providing standardized sample amounts for diagnostic testing.
Implementation Method 1
a sample collection member (60) for absorbing a predetermined volume of a nasal secretion sample
Data Source
AI summary
The invention provides a device for collecting a nasal secretion sample. The device includes a sample collection member comprising a material for collecting a predetermined volume of a nasal secretion sample. The device further includes a handle and an elongated support member extending between the handle and the sample collection member and for supporting the sample collection member. The device is adapted for a user holding the handle to locate the sample collection member in contact with tissue at a target location inside the nasal cavity where the sample collection member collects a predetermined volume of a nasal secretion sample.