Implant Loading Apparatus Coaxial Stent Compression
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Solution Overview
Problem
Existing implant loading apparatuses are complex, prone to damaging the stent during compression, and require multiple operators, leading to inefficiencies and increased risk of surgery due to twisting, tilting, and uneven compression.
Innovation Solution
A novel implant loading apparatus featuring a guider and guide base with removable fixation sections, bayonets, and an auxiliary compression area, allowing for coaxial operation and single-person handling to prevent stent twisting or tilting, and facilitating efficient loading by guiding the stent into the delivery system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional loading tools with multiple operators are used, then the stent can be loaded into the delivery system, but the operation becomes complex and time-consuming with coordination difficulties between operators
Solution Approach 1:
The patent combines the functions of multiple operators into a single integrated loading apparatus. The guide base and guider are merged into one device that can be operated by a single operator, eliminating the need for coordination between multiple people while maintaining the complete loading function.
Solution Approach 2:
The loading apparatus is designed as a multi-functional device that integrates stent holding, compression, alignment, and loading functions into a single system. This universal design allows one operator to perform all necessary operations without needing multiple specialized tools or operators.
2Productivity
If compression force is applied to load the stent, then the stent can be loaded into the delivery system, but the stent may twist, tilt, or damage due to uneven compression
Solution Approach 1:
The patent creates an equipotential compression environment by designing the guide base and guider with symmetric compression surfaces and uniform friction characteristics. This ensures that compression force is distributed evenly around the stent circumference, preventing twisting and tilting during the loading process.
Solution Approach 2:
The guider acts as an intermediary component between the compression force and the stent. It provides a controlled interface that distributes the compression force uniformly across the stent surface, mediating the interaction to prevent localized stress concentrations that could cause damage.
3Ease of operation
If the catheter and delivery system are made long to reach the target, then the procedure can be performed remotely, but the overall system size increases making handling difficult
Solution Approach 1:
The patent divides the delivery system into modular segments: the loading apparatus, the delivery catheter, and the implant. This segmentation allows each component to be optimized independently, with the loading apparatus being compact for easy handling while the catheter length can be adjusted based on specific patient needs.
Data Source
AI summary
The present application discloses an implant loading apparatus comprising a guider and a guide base. The guider is sleeved on the exterior of the guide base. The guide base comprises a guide column, a connecting section, and a base connected in the axial direction. Fixing sections are provided on either end of the connecting section. The guide base is removably connected to the guider via the fixing sections. The guide base is provided with the two fixing sections that fit the guider to implement twice removable fixing, thus favoring a coaxial operation. A valve stent is neither twisted nor tilted during a compression process, thus increasing loading efficiency, greatly reducing the operation difficulty of a surgery, and allowing the implementation of a single person operation.