Enhanced Angle-Expandable Spinal Cage with Improved Adjustability and Customization

Publication ID: 24-11857435_0006_PTD
Published: October 28, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Angle-Expandable Spinal Cage with Improved Adjustability and Customization,” Published Technical Disclosure No. 24-11857435_0006_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857435_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. 11,857,435.

Summary of the Inventive Concept

This inventive concept introduces a novel angle-expandable spinal cage that enables precise angle adjustments, incremental customization, and improved stability, addressing the limitations of existing spinal cage designs.

Background and Problem Solved

The original patent's angle-expandable spinal cage has limitations in terms of adjustability, customization, and stability. The new inventive concept solves these problems by introducing a driving bolt that can rotate and translate simultaneously, a curved frame surface for smooth angle adjustments, a ratchet mechanism for incremental customization, and a locking mechanism to maintain desired angles.

Detailed Description of the Inventive Concept

The enhanced angle-expandable spinal cage comprises a frame with a curved surface, an upper plate and a lower plate that can slide along the curved surface to adjust the angle, and a driving bolt that can rotate and translate simultaneously to achieve precise angle adjustments. The upper plate and lower plate have a ratchet mechanism that allows for incremental customization of the angle. The driving bolt is configured to lock in place to maintain the desired angle, ensuring stability and reliability. The inventive concept also enables customization of the angle to suit individual patient needs.

Novelty and Inventive Step

The new claims introduce a novel driving bolt mechanism that can rotate and translate simultaneously, a curved frame surface, and a ratchet mechanism for incremental customization. These features are non-obvious and novel compared to the original patent, providing a significant improvement in adjustability, customization, and stability.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include using different materials for the frame and plates, varying the curvature of the frame surface, or incorporating sensors to monitor and adjust the angle in real-time. Variations could also include different types of driving bolts or locking mechanisms, or integrating the spinal cage with other medical devices.

Potential Commercial Applications and Market

The enhanced angle-expandable spinal cage has significant commercial potential in the medical device industry, particularly in the field of spinal surgery. The inventive concept's improved adjustability, customization, and stability make it an attractive solution for surgeons and patients, with potential applications in hospitals, clinics, and medical research institutions.

CPC Classifications

SectionClassGroup
A A61 A61F2/4455
A A61 A61F2002/3054
A A61 A61F2002/30433
A A61 A61F2002/30471
A A61 A61F2002/30579

Original Patent Information

Patent NumberUS 11,857,435
TitleAngle-expandable spinal cage
Assignee(s)PMT Republic, Inc., GBS Commonwealth Co., Ltd.