Enhanced Wearable Injector System for Cartridges of Differing Dimensions

Publication ID: 24-11857767_0001_PTD

Published: October 28, 2025

Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Wearable Injector System for Cartridges of Differing Dimensions,” Published Technical Disclosure No. 24-11857767_0001_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857767_0001_PTD

This technical disclosure describes improvements that would be readily apparent to a Person Having Ordinary Skill In The Art (PHOSITA) when considered in combination with the foundational architecture disclosed in U.S. Patent No. 11,857,767.

Summary of the Inventive Concept

A wearable injector system capable of accommodating cartridges of varying dimensions, ensuring efficient, safe, and user-friendly injection experiences.

Background and Problem Solved

The original patent disclosed an injector compatible with cartridges of differing dimensions, but it lacked an automated cartridge alignment mechanism, resulting in potential user errors and inefficient injection processes. The new inventive concept addresses this limitation by introducing a cartridge alignment mechanism that automatically adjusts to accommodate cartridges of differing dimensions.

Detailed Description of the Inventive Concept

The enhanced wearable injector system comprises a body, an injection needle, and a pathway within the body sized for independently receiving either of a first cartridge or a second cartridge. The pathway includes a cartridge alignment mechanism that automatically adjusts to accommodate cartridges of differing dimensions. This mechanism can include a sensor that detects the type of cartridge inserted and adjusts the pathway accordingly. The pathway may also feature a flexible or adjustable inner surface that conforms to the shape of the inserted cartridge, ensuring a secure and leak-tight seal. Additionally, the system may include a cartridge ejection mechanism that enables easy removal of a spent cartridge and replacement with a new cartridge of differing dimensions.

Novelty and Inventive Step

The new inventive concept introduces an automated cartridge alignment mechanism, which is not present in the original patent. This mechanism provides a significant improvement in user experience, safety, and efficiency, making the wearable injector system more practical and appealing for users.

Alternative Embodiments and Variations

Alternative embodiments of the enhanced wearable injector system could include varying sensor types, such as optical or capacitive sensors, to detect cartridge dimensions. Additionally, the cartridge alignment mechanism could be implemented using different materials or geometries to achieve the same functionality. The system could also be adapted for use with other types of injectable substances or medical devices.

Potential Commercial Applications and Market

The enhanced wearable injector system has significant commercial potential in the medical device industry, particularly in the areas of diabetes management, vaccine delivery, and pharmaceutical injection. The system's ability to accommodate cartridges of differing dimensions makes it an attractive solution for patients and healthcare providers seeking efficient, safe, and user-friendly injection experiences.

CPC Classifications

Section	Class	Group
A	A61	A61M5/2466
A	A61	A61M5/345
A	A61	A61M2005/244
A	A61	A61M2005/247
A	A61	A61M2005/2407

Section 103 Obviousness Analysis (PHOSITA)

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Field of Art

Medical device engineering, specifically injectable drug delivery systems and wearable medical injection technologies, focusing on cartridge-based injection mechanisms with adaptable dimensional compatibility

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer with expertise in medical device design, mechanical engineering background, knowledge of injection system configurations, familiarity with sensor technologies and adaptive mechanical systems, typically holding a master's degree or equivalent professional experience

Obviousness Rationale

A person having ordinary skill would recognize that the PTD's automated cartridge alignment mechanism represents a predictable technological extension of the source patent's core teachings about multi-dimensional cartridge compatibility. The proposed sensor-driven pathway adjustment and flexible inner surface are logical engineering solutions to the challenge of accommodating varying cartridge geometries. These variations represent incremental improvements using known sensor and mechanical design techniques within the established framework of the original injector patent.

Obvious Combinations & Variations

Source Patent Element

Pathway capable of receiving cartridges of different dimensions

PTD Variation

Adding a sensor to automatically detect cartridge type and adjust pathway configuration

Obviousness Reasoning

Integrating detection mechanisms is a standard design approach for adaptive mechanical systems, representing a predictable application of known sensor technologies

Source Patent Element

Adapter collars for aligning cartridges

PTD Variation

Implementing a flexible inner surface that conforms to cartridge shape

Obviousness Reasoning

Developing conformable mechanical interfaces is a routine engineering solution for achieving precise alignment and sealing across variable geometries

Source Patent Element

Injector body with interchangeable cartridge pathway

PTD Variation

Adding an automated cartridge ejection mechanism

Obviousness Reasoning

Enhancing user interaction through automated component replacement is a standard design optimization in medical device engineering

Source Patent Element

Cartridge alignment using static mechanical features

PTD Variation

Implementing dynamic sensor-driven alignment mechanism

Obviousness Reasoning

Transitioning from static to dynamic alignment represents an expected technological progression using well-established control system principles

Source Patent Element

Multi-dimensional cartridge compatibility concept

PTD Variation

Introducing alternative sensor types like optical or capacitive detection

Obviousness Reasoning

Exploring multiple sensor implementation strategies is a standard design approach when solving dimensional detection challenges

35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857767, the variations disclosed herein would be obvious to a person having ordinary skill in medical device engineering, as they represent predictable technological extensions employing known sensor, mechanical, and adaptive system design techniques. The proposed innovations constitute obvious combinations of prior art elements that would be readily conceived by a skilled practitioner seeking to enhance cartridge-based injection system functionality.

Original Patent Information

Patent Number	US 11,857,767
Title	Injector usable with different dimension cartridges
Assignee(s)	West Pharma. Services IL, Ltd.