Spinal Implant Cage and Slidable Staple for Vertebral Stabilization
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Solution Overview
Problem
Current spinal implant technologies fail to effectively address chronic trauma and fractures resulting in collapsed vertebrae and intervertebral discs, leading to back and leg pain, as they often result in poor outcomes, deformity progression, and higher reoperation rates due to inadequate stabilization and alignment correction.
Innovation Solution
An orthopedic implant system comprising a cage and a staple with a slidable and pivotable design, allowing for secure anchoring to vertebral bodies with a compression force, and an anchor frame that conforms to the bone surface, enabling precise alignment and stabilization to prevent mechanical failure and promote bone fusion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional spinal implant technologies are used, then the implant can be inserted into the vertebral body, but the implant fails to provide adequate stabilization and alignment correction, leading to poor outcomes and deformity progression
Solution Approach 1:
The implant incorporates a slidable staple mechanism that can transition between retracted and extended positions, and a pivotable anchor frame that can conform to the bone surface. These dynamic features allow the implant to adapt to anatomical variations and achieve precise alignment correction while providing reliable stabilization.
Solution Approach 2:
The implant allows for adjustment of the staple extension distance and anchor frame orientation, enabling precise control over the alignment correction parameters. This adjustability ensures optimal stabilization effectiveness while achieving the required alignment precision.
2Reliability
If the implant uses a fixed design, then the structure is simple, but it cannot conform to the bone surface, leading to inadequate stabilization and higher reoperation rates
Solution Approach 1:
The implant features a slidable staple and pivotable anchor frame that enable the structure to adapt to the bone surface geometry. This dynamic conformation capability enhances stabilization effectiveness while maintaining a relatively simple overall structure through modular components.
Solution Approach 2:
The implant is divided into distinct modular components including the cage, slidable staple, and pivotable anchor frame. This segmentation allows each component to perform its specific function independently while contributing to the overall stabilization effectiveness without excessive complexity.
3Manufacturing precision
If the implant does not have alignment correction capability, then the device is simpler, but deformity progression occurs and adjacent level disease develops
Solution Approach 1:
The pivotable anchor frame and slidable staple work together to provide dynamic alignment correction capability. The anchor frame can pivot to conform to the bone surface while the staple extends to the precise position needed for alignment correction, achieving high precision without excessive structural complexity.
Solution Approach 2:
The implant combines multiple functions including stabilization, alignment correction, and bone surface conformation within a single device system. This multi-functionality achieves precise alignment correction while avoiding the need for multiple separate devices, thereby controlling overall structural complexity.
4Manufacturing precision
If the implant uses a complex adjustable design, then alignment precision is improved, but the device becomes more complex and harder to operate
Solution Approach 1:
The slidable staple and pivotable anchor frame provide automatic adaptation to the bone surface geometry, reducing the need for complex manual adjustments during implantation. This dynamic self-adjustment maintains high alignment precision while improving ease of operation.
Solution Approach 2:
The implant's anchor frame automatically conforms to the bone surface through its pivotable design, and the staple self-adjusts to the optimal extension position. This self-service capability achieves precise alignment correction without requiring complex external adjustment mechanisms, thereby improving ease of operation.
Data Source
AI summary
An implant system comprising a staple and a cage is disclosed. The implant system is secured to the bone by moving the staple rotationally and longitudinally whereby tines of the staple and opposing tines frictionally and mechanically engage or embed themselves in the bone side walls. For vertebral applications, the cage defines an upper surface plane, a lower surface plane and a cage surface angle between these two planes whereby the cage surface angle may alter an endplate surface plane of one or more vertebral body when the cage is implanted in a vertebral body. Implant systems may be configured for use as an interbody or intrabody implant system. The implant system may also be configured for use in arthrodesis procedures with other joints within the body. The implant system may further comprise an anchor frame or plate to further secure the cage and staple to the anatomy.