Self-Adaptive Orthopedic Fastening System with Real-Time Feedback and Dynamic Adjustment

Publication ID: 24-11857227_0005_PTD
Published: November 07, 2025
Category:Future Evolutions & Paradigm Shifts

Legal Citation

pr1or.art Inc., “Self-Adaptive Orthopedic Fastening System with Real-Time Feedback and Dynamic Adjustment,” Published Technical Disclosure No. 24-11857227_0005_PTD, Published November 07, 2025, available at https://archive.pr1or.art/24-11857227_0005_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. 11,857,227.

Summary of the Inventive Concept

A next-generation orthopedic fastening system that dynamically adjusts to changes in bone density or morphology during the healing process, providing optimal fixation and stability through real-time feedback and adjustment of the screw's diameter.

Background and Problem Solved

Current orthopedic fastening systems lack the ability to adapt to changes in the bone's density or morphology during the healing process, which can lead to suboptimal fixation and stability. The original patent addressed this issue by providing an orthopedic locking screw with a deformable thread, but it is limited to passive adaptation. The new inventive concept solves this problem by introducing a self-adaptive orthopedic fastening system that dynamically adjusts to changes in the bone's density or morphology through real-time feedback and adjustment of the screw's diameter.

Detailed Description of the Inventive Concept

The self-adaptive orthopedic fastening system comprises an orthopedic implant having an inner surface defining a bore, and an orthopedic locking screw configured to be secured through the bore of the orthopedic implant into a bore drilled into bone. The orthopedic locking screw features a shaft extending axially between a first end and a second end, coated with a shape-memory alloy that provides dynamic, real-time adjustment of the screw's diameter in response to changes in the bone's density or morphology during the healing process. The system can further transmit real-time data on the bone's density or morphology to an external monitoring device, enabling personalized treatment plans and predictive analytics for optimal patient outcomes.

Novelty and Inventive Step

The new inventive concept introduces a self-adaptive orthopedic fastening system that dynamically adjusts to changes in the bone's density or morphology through real-time feedback and adjustment of the screw's diameter, which is a significant departure from the original patent's passive adaptation mechanism. The use of shape-memory alloy coating and real-time data transmission enables a paradigm shift in orthopedic fastening systems, providing a more effective and personalized solution for patients.

Alternative Embodiments and Variations

Alternative embodiments of the self-adaptive orthopedic fastening system could include the use of other smart materials, such as polymers or ceramics, that can dynamically adjust to changes in the bone's density or morphology. Additionally, the system could be integrated with wearable sensors or implantable devices to provide real-time feedback and adjustment of the screw's diameter.

Potential Commercial Applications and Market

The self-adaptive orthopedic fastening system has significant commercial potential in the orthopedic industry, particularly in the areas of joint reconstruction, spinal surgery, and trauma care. The system's ability to provide optimal fixation and stability through real-time feedback and adjustment of the screw's diameter could lead to improved patient outcomes, reduced complications, and lower healthcare costs.

CPC Classifications

SectionClassGroup
A A61 A61B17/725
A A61 A61B17/8042
A A61 A61B17/863
A A61 A61B17/866
A A61 A61B17/8635
A A61 A61B17/8685
A A61 A61B17/686
A A61 A61B17/8057
A A61 A61B2017/8655

Field of Art

Orthopedic surgical implant systems, specifically focusing on bone fixation technologies involving locking screws, surgical fastening mechanisms, and adaptive medical device design

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer or orthopedic surgical device designer with advanced degree, expertise in materials science, biomechanical engineering, and medical device design, familiar with adaptive materials and surgical implant technologies

Obviousness Rationale

A PHOSITA would recognize that integrating shape-memory alloy technologies and real-time monitoring into orthopedic fastening systems represents a predictable extension of existing locking screw designs, utilizing known smart material principles to enhance surgical implant performance and patient outcomes through incremental technological improvements.

Obvious Combinations & Variations

Source Patent Element
Orthopedic implant with bore and locking screw mechanism
PTD Variation
Adding shape-memory alloy coating for dynamic diameter adjustment
Obviousness Reasoning
Known smart materials can be predictably applied to modify existing medical device geometries, representing a standard design optimization approach
Source Patent Element
Threaded or unthreaded bolt configuration
PTD Variation
Integrating micro-sensors and micro-actuators for real-time feedback
Obviousness Reasoning
Incorporating sensor technologies into mechanical fasteners is a well-established technique in medical device engineering, offering incremental functional improvements
Source Patent Element
Internal surface features for screw retention
PTD Variation
Dynamic adjustment mechanisms responding to bone density changes
Obviousness Reasoning
Adaptive implant technologies that respond to physiological conditions represent a logical progression in orthopedic device design, utilizing predictable material science principles
Source Patent Element
Orthopedic fastening system with implant and screw
PTD Variation
External monitoring and personalized treatment analytics
Obviousness Reasoning
Integrating data transmission and monitoring capabilities is a standard approach to enhancing medical device functionality through known telecommunications and sensor technologies
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857227 and the disclosed technical variations, a person of ordinary skill in the art would find the claimed self-adaptive orthopedic fastening system with real-time feedback and dynamic adjustment mechanisms to be an obvious combination of known orthopedic device design principles, smart material technologies, and predictable engineering modifications.

Original Patent Information

Patent NumberUS 11,857,227
TitleOrthopedic locking screw for an orthopedic fastening system
Assignee(s)Stryker European Operations Holdings LLC