Vertebral Containment Jacket With Dividing Wall
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Solution Overview
Problem
Current methods for treating vertebral fractures, such as vertebroplasty and kyphoplasty, face challenges with cement leakage and inadequate vertebral height restoration, necessitating the development of more effective stabilization and height maintenance techniques.
Innovation Solution
A containment assembly with a dividing wall is deployed inside the bone to prevent cement leakage, and a balloon assembly is used to maintain vertebral height, involving the creation of access channels, cavities, and the introduction of filler materials within a containment jacket to stabilize the fracture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vertebroplasty or kyphoplasty is performed using traditional methods, then vertebral fracture stabilization is achieved, but cement leakage occurs leading to complications
Solution Approach 1:
The containment assembly divides the vertebral body into multiple compartments using partition walls with openings. This segmentation allows controlled cement flow through the openings while containing cement in specific regions, preventing unwanted leakage pathways that occur in traditional single-chamber methods.
Solution Approach 2:
The containment assembly acts as an intermediary structure between the cement and the vertebral body walls. It provides a controlled interface that guides cement placement and prevents direct contact between cement and vulnerable areas, thereby preventing leakage while maintaining stabilization.
2Reliability
If traditional vertebroplasty or kyphoplasty is performed, then fracture stabilization is achieved, but inadequate vertebral height restoration occurs
Solution Approach 1:
The containment assembly with partition walls creates multiple chambers that can be independently filled with cement. This segmentation allows for controlled expansion forces to be applied in different regions, enabling progressive height restoration while maintaining stabilization throughout the vertebral body.
Solution Approach 2:
The containment assembly is deployed and configured within the vertebral body before cement injection. This preliminary positioning establishes the structural framework that will guide subsequent cement placement and height restoration, ensuring that stabilization and height recovery occur in a controlled sequence.
3Object-affected harmful factors
If a containment assembly with dividing wall is deployed, then cement leakage is prevented, but device complexity increases
Solution Approach 1:
The containment assembly utilizes flexible membrane structures that can be deployed within the vertebral body. These thin-film partitions create the necessary compartments for leakage prevention while maintaining a relatively simple overall device structure that can be inserted through standard access channels.
Solution Approach 2:
The partition walls and containment structures are designed to be nested within each other or within the vertebral body cavity. This nesting approach allows the complex multi-chamber structure to be compacted for insertion and then expanded to its functional configuration, reducing the apparent device complexity during the procedure.
Data Source
AI summary
Methods and apparatus for treating bones, including, in one or more embodiments, methods and apparatus for treatment of vertebral fractures that include a containment assembly for cement containment and/or a balloon assembly for maintaining vertebral height. A containment assembly comprising a containment jacket adapted to be deployed inside bone; and a dividing wall that separates the interior of the containment jacket into a proximal region and a distal region, the dividing wall having an opening for providing access to the distal region from the proximal region.