Adaptive Set Screw Assembly for Specialized Orthopedic Applications

Publication ID: 24-11857228_0004_PTD
Published: November 07, 2025
Category:Specialized Variations & Niche Solutions

Legal Citation

pr1or.art Inc., “Adaptive Set Screw Assembly for Specialized Orthopedic Applications,” Published Technical Disclosure No. 24-11857228_0004_PTD, Published November 07, 2025, available at https://archive.pr1or.art/24-11857228_0004_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. 11,857,228.

Summary of the Inventive Concept

The inventive concept presents a set screw assembly designed for specific, high-demand environments, such as high-altitude, disaster relief, extreme weather, high-security, and limited medical resource situations, ensuring reliable and effective femoral fracture treatment.

Background and Problem Solved

The original patent disclosed a set screw assembly for intramedullary intertrochanteric devices, but it did not address the unique challenges posed by specialized environments. This inventive concept adapts the original design to cater to these specific needs, providing a more reliable and effective solution for femoral fracture treatment in diverse operational environments.

Detailed Description of the Inventive Concept

The set screw assembly comprises a first member with a proximal and distal portion, and a third member insertable into the proximal portion. The new claims introduce specialized features, such as temperature-resistant coatings, waterproof coatings, tamper-evident features, and sterilizable designs, to enable the set screw assembly to function effectively in high-altitude, extreme weather, high-security, and disaster relief environments. The inventive concept also includes a method for treating femoral fractures in areas with limited medical resources, ensuring that the set screw assembly can be successfully implanted and utilized in these settings.

Novelty and Inventive Step

The new claims introduce novel features that adapt the original set screw assembly to specific, high-demand environments, providing a non-obvious solution to the challenges posed by these environments. The inventive concept's unique combination of specialized features and designs enables reliable and effective femoral fracture treatment in a broader range of operational environments.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include additional specialized features, such as shock-absorbing materials, enhanced biocompatibility, or integrated sensors for real-time monitoring. These variations could further expand the range of operational environments in which the set screw assembly can be effectively utilized.

Potential Commercial Applications and Market

The inventive concept has significant commercial potential in the orthopedic industry, particularly in niche markets catering to high-altitude, disaster relief, extreme weather, high-security, and limited medical resource environments. The set screw assembly's adaptability to diverse operational environments makes it an attractive solution for medical professionals and organizations operating in these areas.

CPC Classifications

SectionClassGroup
A A61 A61B17/744
A A61 A61B17/8897

Field of Art

Orthopedic surgical devices, specifically intramedullary nail fixation systems for femoral fracture treatment, requiring expertise in medical device design, materials engineering, and surgical implant technologies

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer or orthopedic surgical device designer with advanced degree, working knowledge of medical device materials, sterilization techniques, and environmental adaptation strategies for surgical implants

Obviousness Rationale

A PHOSITA would recognize that adapting the set screw assembly for specialized environments represents predictable variations using known engineering techniques. The core mechanical functionality of the original set screw assembly remains unchanged, with modifications focused on expanding operational contexts through standard material and coating technologies. These adaptations represent routine design optimization within the medical device engineering domain.

Obvious Combinations & Variations

Source Patent Element
Set screw assembly with flanges and insertable third member for locking mechanism
PTD Variation
Adding temperature-resistant coating to prevent corrosion in low-oxygen environments
Obviousness Reasoning
Material coating techniques are well-established in medical device engineering, and protecting implants from environmental degradation represents a known and predictable solution for expanding device reliability
Source Patent Element
Intramedullary nail fixation system with modular components
PTD Variation
Incorporating waterproof and sterilizable design features
Obviousness Reasoning
Medical implants routinely require sterilization and environmental protection, and a PHOSITA would find these modifications obvious using standard materials science approaches
Source Patent Element
Precision mechanical assembly with multiple interacting components
PTD Variation
Adding tamper-evident features for high-security environments
Obviousness Reasoning
Implementing security mechanisms in medical devices is a known design strategy, representing a straightforward application of existing engineering principles to expand device functionality
Source Patent Element
Modular set screw assembly with configurable locking mechanisms
PTD Variation
Adapting design for extreme environmental conditions like high-altitude or disaster relief scenarios
Obviousness Reasoning
Extending medical device performance across varied operational contexts is a standard engineering optimization approach, utilizing predictable material and design modifications
35 U.S.C. § 103 Summary: Based on US Patent 11857228's disclosure of a set screw assembly for intramedullary nail fixation, the present publication demonstrates that variations incorporating environmental adaptation techniques, specialized coatings, and expanded operational contexts would be obvious to a person having ordinary skill in orthopedic medical device engineering. The disclosed modifications represent routine design optimizations using known techniques, thereby rendering substantially similar claimed inventions obvious under 35 U.S.C. ยง 103.

Original Patent Information

Patent NumberUS 11,857,228
TitleSet screw for femoral nail
Assignee(s)Stryker European Operations Holdings LLC