Enhanced Expandable Fusion Device with Real-time Feedback and Customization

Publication ID: 24-11857437_0001_PTD
Published: October 28, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Expandable Fusion Device with Real-time Feedback and Customization,” Published Technical Disclosure No. 24-11857437_0001_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857437_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. 11,857,437.

Summary of the Inventive Concept

An advanced expandable fusion device that integrates sensors for real-time feedback, self-locking mechanisms, and modular design for customized patient fit, enhancing the intervertebral fusion process.

Background and Problem Solved

The original expandable fusion device patent, while effective, has limitations in providing real-time feedback to surgeons, ensuring device stability, and accommodating varying patient anatomies. The new inventive concept addresses these limitations by introducing integrated sensors, self-locking mechanisms, and modular design.

Detailed Description of the Inventive Concept

The enhanced expandable fusion device features a central ramp with an integrated sensor that provides real-time feedback to surgeons during installation, enabling more precise and effective fusion. The device is also equipped with a self-locking mechanism that ensures it remains in place after installation, reducing the risk of device migration. Furthermore, the modular design allows for interchangeable endplates and central ramps, customizing the device to fit different patient anatomies. The device can adjust its width and height in real-time based on the patient's anatomy, ensuring a secure and efficient fusion process.

Novelty and Inventive Step

The new claims introduce the integration of sensors, self-locking mechanisms, and modular design, which are not present in the original patent. These features provide a significant improvement in the intervertebral fusion process, making the new inventive concept novel and non-obvious.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include variations in sensor technology, self-locking mechanisms, and modular design configurations. For example, the sensor could be replaced with a different type of feedback mechanism, or the self-locking mechanism could be modified to accommodate different device geometries.

Potential Commercial Applications and Market

The enhanced expandable fusion device has significant commercial potential in the spinal surgery market, offering improved patient outcomes, reduced surgical time, and increased surgeon confidence. The target industries include medical device manufacturers, hospitals, and orthopedic clinics.

CPC Classifications

SectionClassGroup
A A61 A61F2/447
A A61 A61F2/442
A A61 A61F2/4425
A A61 A61F2/4465
A A61 A61F2/4611
A A61 A61F2002/2817
A A61 A61F2002/2835
A A61 A61F2002/3083
A A61 A61F2002/30266
A A61 A61F2002/30387
A A61 A61F2002/30397
A A61 A61F2002/30405
A A61 A61F2002/30411
A A61 A61F2002/30433
A A61 A61F2002/30471
A A61 A61F2002/30482
A A61 A61F2002/30484
A A61 A61F2002/30507
A A61 A61F2002/30517
A A61 A61F2002/30522
A A61 A61F2002/30523
A A61 A61F2002/30528
A A61 A61F2002/30555
A A61 A61F2002/30556
A A61 A61F2002/30558
A A61 A61F2002/30579
A A61 A61F2002/30593
A A61 A61F2002/30601
A A61 A61F2002/30607
A A61 A61F2002/30828
A A61 A61F2002/30841
A A61 A61F2002/30843
A A61 A61F2002/30904
A A61 A61F2002/443
A A61 A61F2310/00011
A A61 A61F2310/00017
A A61 A61F2310/00023
A A61 A61F2310/00179

Field of Art

Orthopedic medical devices, specifically intervertebral fusion implants, requiring expertise in biomechanical engineering, surgical device design, and medical device materials with advanced mechanical engineering skills

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer or orthopedic device designer with advanced degrees, experience in spinal implant design, understanding of mechanical actuation systems, sensor integration, and surgical intervention techniques

Obviousness Rationale

A PHOSITA would recognize that integrating sensor technology and adaptive mechanisms into existing expandable fusion device designs represents a predictable technological evolution. The source patent's fundamental expandable device architecture provides a clear foundation for incorporating real-time monitoring and customization features. The proposed variations represent incremental improvements using standard engineering techniques available in medical device design.

Obvious Combinations & Variations

Source Patent Element
Expandable fusion device with width and height adjustment mechanisms
PTD Variation
Adding integrated sensor for real-time feedback during device installation
Obviousness Reasoning
Sensor integration is a known technique in medical devices for monitoring procedural parameters, representing a predictable application of existing technological solutions
Source Patent Element
Intervertebral implant with multiple endplate portions
PTD Variation
Implementing modular design with interchangeable endplates and central ramps
Obviousness Reasoning
Modular medical device design is a standard approach for customization, allowing adaptation to patient-specific anatomical variations using known engineering principles
Source Patent Element
Width and height transition mechanisms between endplates
PTD Variation
Self-locking mechanism to prevent device migration after installation
Obviousness Reasoning
Mechanical stabilization techniques are well-established in orthopedic implant design, representing a logical extension of existing device functionality
Source Patent Element
Expandable fusion device with ramped surfaces
PTD Variation
Real-time width and height adjustment based on patient anatomy
Obviousness Reasoning
Dynamic adaptation of medical implants is a predictable solution addressing variability in patient anatomical structures using standard engineering approaches
Source Patent Element
Intervertebral implant with tool engagement elements
PTD Variation
Incorporating bone graft material compatibility and growth promotion features
Obviousness Reasoning
Enhancing implant biocompatibility through integrated bone growth promotion is a standard approach in orthopedic device design
35 U.S.C. § 103 Summary: Based on US Patent 11857437, the disclosed technical variations represent obvious extensions of existing intervertebral fusion device technology. A person having ordinary skill in the art would recognize these modifications as predictable combinations of known medical device design techniques, thereby rendering potential claims covering such variations unpatentable under 35 U.S.C. Section 103.

Original Patent Information

Patent NumberUS 11,857,437
TitleExpandable fusion device and method of installation thereof
Assignee(s)Globus Medical, Inc.