Curved Liner Core Vertebral Balloon One-Sided Insertion
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Solution Overview
Problem
Current vertebral balloon dilation systems require complex procedures involving puncture and dilation at both sides of the vertebral body, leading to increased trauma, longer surgery times, higher complication rates, and economic burdens, especially in multi-segmental vertebral lesions, due to the need for drilling a working cavity and X-ray monitoring.
Innovation Solution
A vertebral balloon dilation system featuring a pushing tube with a balloon and a sleeve tube, where the balloon is fed to the center or opposite side of the vertebral body via a curved liner core, eliminating the need for pre-drilling and simplifying procedures by using a rigid sleeve tube and sealing head to protect and guide the balloon, allowing for one-sided puncture and reduced trauma.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If balloon dilation is operated at both sides of the vertebral body, then the biomechanical force balance is maintained, but the trauma to the patient increases and the surgical time is extended
Solution Approach 1:
The patent introduces a curved section in the liner core that enables three-dimensional navigation of the balloon catheter. This allows the balloon to be positioned at the center or opposite side of the vertebral body through a single puncture approach, effectively transitioning from a two-dimensional bilateral approach to a three-dimensional single-access approach that maintains biomechanical balance while reducing trauma
2Ease of operation
If a working cavity is drilled with a bone drill before inserting the balloon, then the balloon can be inserted smoothly, but the surgical procedures become complex and the surgery time increases
Solution Approach 1:
The patent applies preliminary action by pre-forming a curved section in the liner core before insertion. This pre-shaped curved liner core naturally creates the necessary working cavity path during insertion, eliminating the need for separate bone drilling steps. The curved section is prepared in advance and simply needs to be inserted through the puncture channel to achieve smooth balloon delivery
Solution Approach 2:
The patent extracts the bone drilling step from the surgical procedure by using the curved liner core to naturally create the working cavity path. The liner core itself serves as both the insertion guide and the cavity-forming element, removing the need for a separate drilling operation while maintaining smooth balloon insertion
3Adaptability or versatility
If multiple punctures are performed for multi-segmental vertebral lesions, then all lesions can be treated, but the trauma and economic burden on the patient increase significantly
Solution Approach 1:
The patent achieves universality by designing a single curved liner core system that can treat multiple vertebral segments through one puncture. The liner core can be navigated to different vertebral bodies and the balloon can be positioned at various locations within the vertebral body, allowing one puncture site to serve multiple treatment targets across different segments
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach reduces patient trauma, shortens surgery duration, decreases complication incidence, and lowers economic burdens by simplifying the procedure and enabling reliable, one-sided balloon insertion and dilation, particularly beneficial for multi-segmental vertebral lesions.
Implementation Method 1
a developer solution is injected into the balloon by means of a pushing tube, thereby simplifying surgical procedures
Data Source
Figure 1a~1c
Figure 1d~1e
Figure 2a~2b
AI summary
The present disclosure relates to a vertebral balloon dilation system, comprising a pushing tube (2) and a balloon (1) fixedly connected with the distal end of the pushing tube (2). The system can withstand the water pressure of no less than 10 atm. The pushing tube (2) is a rigid tube, and the lumen thereof is in communication with the interior of the balloon (1). The balloon (1) is made of membrane material, and the distal end thereof is fixedly connected with a sealing head (11), the distal end of the sealing head (11) is closed. The system further comprises a sleeve tube (3) and a liner core (4), wherein the liner core (4) is slidably inserted into the pushing tube (2), and the distal end part of the liner core (4) is a curved section (41). The balloon (1) wraps up the curved section (41) of the liner core (4). The distal end part of the sleeve tube (3) is a flexible section (31), which is rigid in the radial direction, and the proximal end part of the sleeve tube (3) is a rigid section (32). The sleeve tube (3) is sleeved on the pushing tube (2) and the balloon (1). When the vertebral balloon dilation system is operated, the sleeve tube (3) slides axially towards the proximal end of the pushing tube (2), and the balloon (1) is exposed. According to the present disclosure, the balloon (1) can be fed to the center or to the opposite side of the vertebral body simply by puncturing at only one side without drilling out a cavity with a bone drill before feeding the balloon, thus simplifying surgical procedures, shortening duration of surgery, reducing the incidence of complications, alleviating the pain of patients and reducing the economic burden of patients.