Enhanced Bone Plate System for Spinal Fusion

Publication ID: 24-11857224_0006_PTD
Published: November 07, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Bone Plate System for Spinal Fusion,” Published Technical Disclosure No. 24-11857224_0006_PTD, Published November 07, 2025, available at https://archive.pr1or.art/24-11857224_0006_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. 11,857,224.

Summary of the Inventive Concept

An improved vertebral fusion system featuring adjustable locking screw apertures, variable thread engagement, and integrated sensors for timely intervention, enhancing the safety and efficiency of spinal fusion procedures.

Background and Problem Solved

The original bone plate patent (US [Patent Number]) has inherent limitations, including fixed locking screw apertures and lack of real-time monitoring, leading to potential complications and increased surgical time. The new inventive concept addresses these limitations by introducing adjustable locking screw apertures, variable thread engagement, and integrated sensors, ensuring a more efficient, safer, and more reliable spinal fusion procedure.

Detailed Description of the Inventive Concept

The enhanced bone plate system comprises a bone plate with adjustable locking screw apertures, allowing for variable thread engagement to accommodate different bone densities. The system also features a method for securing the bone plate to the vertebral bone, involving the application of a radial inward force to the locking screw to reduce its diameter and engage with the bone plate. Additionally, the system includes cervical and lumbar bone plates with advanced locking mechanisms, featuring screws with partially open shafts and threads, enabling adjustable diameters to accommodate different vertebral bone sizes. Furthermore, the system incorporates integrated sensors that detect bone screw loosening and alert the surgeon, enabling timely intervention and preventing complications.

Novelty and Inventive Step

The new claims introduce novel features, including adjustable locking screw apertures, variable thread engagement, and integrated sensors, which are not present in the original patent. These features provide a significant improvement over the existing bone plate system, enhancing the safety, efficiency, and reliability of spinal fusion procedures.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include bone plates with different locking mechanisms, such as screw-less or snap-fit designs. Additionally, the system could be adapted for use in other orthopedic applications, such as hip or knee replacements, or integrated with other medical devices, such as surgical robots or navigation systems.

Potential Commercial Applications and Market

The enhanced bone plate system has significant commercial potential in the spinal fusion market, estimated to reach $12.3 billion by 2025. The system's improved safety, efficiency, and reliability features will appeal to surgeons, hospitals, and medical device companies, offering a competitive advantage in the market.

CPC Classifications

SectionClassGroup
A A61 A61B17/7059
A A61 A61B17/8057
A A61 A61F2/30749
A A61 A61F2/4455
A A61 A61B17/7061
A A61 A61B17/7258
A A61 A61B17/7275
A A61 A61B17/8052
A A61 A61B17/8061
A A61 A61B17/844
A A61 A61B17/863
A A61 A61B17/864
A A61 A61B17/8625

Field of Art

Orthopedic surgical implants, specifically spinal fusion systems, involving biomechanical design of bone plates, locking mechanisms, and surgical intervention techniques for vertebral stabilization

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer or orthopedic surgical device designer with expertise in mechanical design, materials science, and surgical implant technologies, possessing advanced degrees and 5-10 years of experience in developing orthopedic medical devices

Obviousness Rationale

A PHOSITA would recognize that the published technical disclosure represents predictable variations on the source patent's core bone plate technology, utilizing standard engineering design approaches and known surgical device modification techniques. The disclosed variations represent incremental improvements that would be apparent to a skilled practitioner seeking to optimize spinal fusion implant performance. The modifications involve known mechanical design principles and standard approaches to addressing surgical device limitations.

Obvious Combinations & Variations

Source Patent Element
Bone plate with bone screw and locking screw apertures
PTD Variation
Adjustable locking screw apertures with variable thread engagement
Obviousness Reasoning
A PHOSITA would recognize that modifying aperture geometry to accommodate different bone densities represents a predictable design optimization using known mechanical engineering techniques
Source Patent Element
Locking screws with threads oriented toward screw head
PTD Variation
Partially open shaft screws with variable diameter for accommodating different vertebral bone sizes
Obviousness Reasoning
Adjustable mechanical components represent a standard design approach for creating adaptable medical devices, utilizing known mechanical deformation principles
Source Patent Element
Cervical and lumbar bone plate configurations
PTD Variation
Integrated sensor systems for detecting bone screw loosening
Obviousness Reasoning
Incorporating diagnostic monitoring into surgical implants is a predictable technological evolution, representing a known approach to improving medical device safety and performance
Source Patent Element
Bone plate with locking mechanism for preventing screw movement
PTD Variation
Radial inward force application method for reducing screw diameter and enhancing engagement
Obviousness Reasoning
Mechanical engagement techniques that modify component geometry represent standard engineering problem-solving approaches within orthopedic device design
Source Patent Element
Threaded locking screw apertures
PTD Variation
Upwardly slanted threads with reduced force requirements for screw retention
Obviousness Reasoning
Geometric thread modifications represent predictable design variations that a skilled practitioner would recognize as an obvious mechanical optimization technique
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857224, a person having ordinary skill in the art would find the variations disclosed in the published technical disclosure to represent obvious extensions of existing bone plate technology, utilizing standard engineering design principles and predictable modifications to address known limitations in spinal fusion implant systems.

Original Patent Information

Patent NumberUS 11,857,224
TitleBone plate
Assignee(s)Innovasis Inc.