Intraurethral Syringe Layout for Precise Self-Administration
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Solution Overview
Problem
Existing intraurethral administration devices lack ergonomics, precision, and versatility for administering liquid or gel medications, and do not provide safe and comfortable self-administration, particularly for erectile dysfunction and other applications.
Innovation Solution
A non-standard syringe with an extended nozzle and increased volumetric capacity, combined with a plunger lock and ergonomic design, allowing easy self-administration and ensuring accurate dosage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a standard syringe is used for intraurethral administration, then the device is simple and easy to manufacture, but it lacks ergonomic comfort and precision for self-administration
Solution Approach 1:
The device is divided into distinct functional segments: a syringe body for medication storage, an extended nozzle for precise urethral insertion, and a plunger lock mechanism for safety. This segmentation allows each component to be optimized independently while maintaining overall simplicity.
Solution Approach 2:
The extended nozzle acts as an intermediary component between the syringe body and the urethral application site. It provides the necessary reach and ergonomic positioning while maintaining the simplicity of the basic syringe structure.
2Quantity of substance
If the syringe volume is increased to accommodate sufficient medication, then the dosing capacity is adequate, but the device size increases and reduces ergonomics
Solution Approach 1:
The syringe is oriented longitudinally along the urethral canal, utilizing the length dimension rather than increasing width or height. This allows adequate medication volume while maintaining a compact, ergonomic form factor that fits comfortably during self-administration.
3Measurement precision
If the nozzle is extended to reach the urethral canal, then the application precision is improved, but the distance between fingers and application site increases, reducing ergonomics
Solution Approach 1:
The extended nozzle is positioned asymmetrically to extend toward the urethral application site while the plunger and finger control areas remain positioned for optimal hand grip and control. This asymmetric layout maintains ergonomic finger control while achieving precise urethral delivery.
4Reliability
If a plunger lock mechanism is added to prevent accidental activation, then the safety is improved, but the device complexity increases
Solution Approach 1:
The plunger lock mechanism is designed as a self-contained safety feature that automatically engages when the cap is removed and disengages when the cap is replaced. This self-service design provides safety functionality without requiring additional operational steps or complex control mechanisms.
Data Source
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AI summary
Intraurethral administration of medications is a practice known for rapid absorption, reduced side effects and the toxicity, in addition to reduce the pharmaceutical formulations dose. Present invention aims ergonomics and comfort for using urethral device administration of liquid or gel medication directly into the man's urethral channel. More specifically, the device comprises a housing with domed shape associated to a non-standard syringe increased volumetric capacity and extended nozzle, plunger lock, cover and kit for accommodate the small intraurethral applicator. The present invention belongs to the fields of Pharmacy and Medicine and among the various applications, special emphasis is placed on erectile dysfunction, but this urethral route can also be used to variety of pharmaceutical formulations as: anti-inflammatories, antiseptics, antibiotics, anesthetics, among other applications with different color device, allowing the use both by the patient (self-administration) and by the healthcare professional.