Catheter Occlusion Device With Offset Ports
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current occlusion devices used in lung diagnostic or treatment scenarios face issues with mucus or fluid lodging in the single distal port, reducing operational capabilities and potentially blocking air or fluid flow due to contact with the airway wall.
Innovation Solution
A flexible insertion catheter device with multiple ports at the distal end and an occlusion device that includes an inner tube with a flow lumen and an outer tube, featuring a seal between the lumens to allow controlled fluid flow and inflation, mitigating blockages by offsetting ports to prevent mucus or tissue ingestion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single distal port is used in the catheter device, then the device structure is simple, but mucus or fluid becomes lodged in the port reducing operational capabilities and blocking air or fluid flow
Solution Approach 1:
The catheter is divided into multiple ports (first port and second port) at the distal end, allowing fluid to be distributed through separate pathways. This segmentation prevents mucus or fluid from blocking all flow paths simultaneously, thereby maintaining operational capability while managing structural complexity.
2Ease of manufacture
If a single distal port is used, then the device is easier to manufacture, but the port contacts the airway wall preventing air or fluid flow
Solution Approach 1:
Multiple ports are positioned at different locations at the distal end of the catheter, reducing the probability that all ports will contact the airway wall simultaneously. This maintains ease of manufacture while improving operational reliability by providing alternative flow paths.
3Reliability
If multiple ports are added to the catheter, then blockages are mitigated and fluid flow options are provided, but the device complexity increases
Solution Approach 1:
The catheter incorporates multiple ports (first and second ports) at the distal end, creating redundant flow paths that resist blockages. While this increases structural complexity, the segmentation provides necessary reliability by ensuring continued operation even if one port becomes blocked.
Solution Approach 2:
The ports are offset from one another in spatial arrangement, utilizing different dimensional positions to reduce the likelihood of simultaneous blockage or contact with the airway wall. This dimensional distribution manages complexity while enhancing blockage resistance.
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 device effectively occludes bronchial passageways while maintaining airflow and fluid interaction, reducing blockages and ensuring consistent operation by using offset ports with varying diameters to prevent mucus or tissue entry.
Implementation Method 1
a seal is located between the flow lumen and an inflation lumen located between the outer tube and the inner tube
Implementation Method 2
The inflation lumen receives from an inflation device a flow of gas to selectively inflate and expand the occlusion device to sealably occlude the bronchial passageway
Data Source
AI summary
Disclosed embodiments include apparatuses, systems, and methods for assessing collateral ventilation. An illustrative embodiment includes a flexible insertion catheter device includes an outer tube having an inner diameter. The outer tube includes a plurality of ports at a distal end and an occlusion device filling port located proximal from the plurality of ports. Also, the flexible insertion catheter device includes an inner tube receivable within the outer tube. The inner tube includes a flow lumen and an outer diameter less than the inner diameter of the outer tube. The flexible insertion catheter device further includes an occlusion device attachable to the outer tube and configured to selectively seal a bronchial passageway to occlude a lobe of a lung.