Exhalation Delivery System for Sinus Disease Treatment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The complex nasal anatomy and post-surgical changes make it difficult to effectively deliver medication to the paranasal sinuses using conventional methods, especially for chronic rhinosinusitis, where corticosteroids are needed to manage inflammation and polyp formation.
Innovation Solution
An exhalation delivery system (EDS) using a mouthpiece and nosepiece, where the patient exhales to create a fluid flow for administering corticosteroids, such as fluticasone, into the sinuses, which provides improved penetration and deposition in surgically altered anatomy like Draf 2 and Draf 3 procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional nasal sprays or high-volume irrigation are used for medication delivery, then the nasal passages can be treated, but the medication fails to effectively reach the paranasal sinuses due to complex nasal anatomy and post-surgical changes
Solution Approach 1:
Instead of attempting to force medication forward into difficult-to-reach sinuses through the nasal passages, the invention reverses the approach by having the patient exhale, which creates a fluid flow that carries medication backward and upward into the sinuses. This inversion of the typical inhalation-based delivery approach overcomes the anatomical barriers that prevent conventional delivery methods from effectively reaching the paranasal sinuses.
2Quantity of substance
If high-volume, low-flow irrigation is used to distribute liquid medication into sinuses, then distribution may be improved, but the treatment efficacy is still limited by anatomical obstructions and inability to reach certain sinus regions
Solution Approach 1:
The invention utilizes pneumatic pressure generated by the patient's own exhalation to create a controlled fluid flow that delivers medication to the sinuses. This breath-actuated mechanism uses the patient's respiratory system as a pump, creating sufficient pressure to overcome anatomical obstructions and deliver medication accurately to targeted sinus regions without requiring external irrigation equipment.
3Ease of operation
If surgical procedures like Draf 2 or Draf 3 are performed to open sinuses, then access to sinuses is improved, but conventional delivery methods still fail to achieve adequate medication penetration due to altered anatomy
Solution Approach 1:
The invention employs a dynamic delivery mechanism where the patient's exhalation creates variable fluid flow that adapts to the post-surgical anatomy. The breath-actuated system generates sufficient force to penetrate deeply into the surgically opened sinuses, ensuring adequate medication distribution throughout the altered anatomical structures that conventional static delivery methods cannot reach.
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 EDS system ensures deeper and more efficient delivery of corticosteroids to the sinuses, particularly in the frontal, ethmoid, and maxillary regions, improving treatment efficacy and retention of the medication within the nasal passages, unlike conventional nasal sprays or high-volume irrigation which face limitations due to anatomical changes post-surgery.
Implementation Method 1
the patient exhaling into the mouthpiece to create a fluid flow out of the nosepiece and into the first nostril during administration of the therapeutic agent to the patient
Data Source
AI summary
An exhalation delivery system for and method of treating a patient having sinus disease, comprising, following Draf 2 or Draf 3 surgery, administering a therapeutic agent including a corticosteroid to the patient, wherein the therapeutic agent is administered by an exhalation delivery device comprising a mouthpiece and a nosepiece, fitting the nosepiece to a first nostril of the patient, and the patient exhaling into the mouthpiece to create a fluid flow out of the nosepiece and into the first nostril during administration of the therapeutic agent to the patient.