Enhanced Drug Delivery Device with Advanced Cartridge Features
Legal Citation
Summary of the Inventive Concept
This inventive concept presents a series of direct improvements and enhancements to the original drug delivery device, focusing on single-use cartridges with self-sealing mechanisms, advanced driver systems, and integrated sensors for precise pharmaceutical delivery.
Background and Problem Solved
The original drug delivery device with pre-assembled cartridge (PCT/AU2016/050444) had limitations in terms of cartridge leakage, inconsistent flow rates, and lack of precision in pharmaceutical delivery. This new inventive concept addresses these limitations by introducing novel cartridge designs, driver mechanisms, and sensor integrations to provide a safer, more efficient, and precise drug delivery system.
Detailed Description of the Inventive Concept
The enhanced drug delivery device features a body extending from a delivery tip, defining a cavity for retaining a pre-assembled cartridge holding the pharmaceutical substance. The cartridge is designed for single-use and has a self-sealing mechanism to prevent leakage after use. A driver is adapted to release a consistent flow of the pharmaceutical and has a ratchet action to prevent backflow. Additionally, the cartridge may include a built-in sensor to detect the type and quantity of pharmaceutical contained therein, ensuring precise delivery. The system can be configured for single-hand use, with a user interface for selecting the type and quantity of substance to be delivered.
Novelty and Inventive Step
The new claims introduce novel features such as self-sealing cartridges, advanced driver systems with ratchet action, and integrated sensors for precise pharmaceutical detection. These features provide a non-obvious improvement over the original patent, addressing specific limitations and enhancing the overall performance of the drug delivery device.
Alternative Embodiments and Variations
Alternative embodiments of the inventive concept could include cartridges with different self-sealing mechanisms, driver systems with varying flow rates, or sensors integrated into the delivery tip. Additionally, the system could be adapted for use in various medical specialties, such as ophthalmology or oncology.
Potential Commercial Applications and Market
The enhanced drug delivery device has significant commercial potential in the pharmaceutical and medical industries, particularly in areas where precise and efficient drug delivery is critical, such as cancer treatment or surgical procedures. The device's advanced features and improved performance could lead to increased adoption and market share.
Section 103 Obviousness Analysis (PHOSITA)
Field of Art
Medical device engineering, specifically drug delivery systems and pharmaceutical dispensing technologies, with expertise in mechanical design, fluid handling, and precision medical instrumentation
Person of Ordinary Skill (PHOSITA) Profile
A biomedical engineer with advanced degree, 3-5 years experience in medical device design, familiar with surgical drug delivery mechanisms, cartridge technologies, and precision fluid transfer systems
Obviousness Rationale
A PHOSITA would recognize the PTD's variations as straightforward engineering improvements that address known limitations in the source patent's drug delivery device design. The self-sealing mechanism, integrated sensors, and advanced driver system represent predictable technological extensions that solve common challenges in pharmaceutical delivery devices. These modifications represent incremental innovations that would be apparent to a skilled practitioner seeking to optimize drug delivery performance and user experience.
Obvious Combinations & Variations
Original Patent Information
| Patent Number | US 11,857,554 |
|---|---|
| Title | Drug delivery device with pre-assembled cartridge |
| Assignee(s) | INTRAVITAL PTY LTD. |