PCNL Device Set with Matching Dilator and Balloon Tip Lengths
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Solution Overview
Problem
Current percutaneous nephrolithotomy (PCNL) surgery devices require multiple separate packages for complete components, leading to increased costs and waste, and pose challenges in ensuring accurate insertion depth for dilators and balloon catheters, which can result in incomplete expansion or injury to the patient.
Innovation Solution
A comprehensive device set for PCNL surgery that includes all necessary components in a single package, with matching tip lengths for dilators and balloon catheters to facilitate uniform insertion, and incorporates scale markers for precise depth guidance, reducing the complexity and risk of the procedure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple separate packages are used to provide all required components for PCNL surgery, then the completeness of components is improved, but the cost and waste increase
Solution Approach 1:
The patent combines multiple separate packages containing different surgical components into a single integrated device set. This merging approach ensures all necessary components (puncture needle, guidewire, dilators of various sizes, sheath, drainage catheter, balloon catheter) are provided together in one package, eliminating the need to purchase multiple separate packages while reducing waste from unused components.
Solution Approach 2:
The device set is designed as a universal package that can accommodate different surgical approaches (balloon dilation or fascial dilation) with all necessary components included. This multi-functional design allows the same package to serve complete surgical needs regardless of which dilation method is chosen, preventing waste from unused components that would be included in separate specialized packages.
2Quantity of substance
If multiple separate packages are used to provide all required components for PCNL surgery, then the completeness of components is improved, but the total cost increases
Solution Approach 1:
The patent merges multiple separate commercial packages into a single integrated device set, allowing医疗机构 to purchase one complete set rather than multiple separate packages. This consolidation reduces the total cost while ensuring all necessary components for either balloon or fascial dilation approach are included.
3Reliability
If dilators and balloon catheters have different tip lengths, then each component can be optimized for its specific function, but the difficulty of ensuring accurate insertion depth increases
Solution Approach 1:
The patent applies local quality by providing scale markers at specific locations on each component (puncture needle, guidewire, dilators, sheath, drainage catheter, balloon catheter). These localized markings allow the physician to easily monitor and control insertion depth for each component, simplifying the operation while maintaining functional optimization.
4Ease of operation
If scale markers are added to components for depth guidance, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The patent uses visual indicators (scale markers) on components to provide depth guidance. These markers create a simple visual system that enhances ease of operation without significantly increasing device complexity, as the markers are integrated into the existing component structure.
Data Source
AI summary
A device set designed for PCNL surgery includes a puncture needle, a guidewire, a dilator, a balloon catheter, a sheath, and a drainage catheter which are all placed in a single package. A tip length of the dilator is substantially the same as a tip length of the balloon catheter. The device set may include a puncture needle, a guidewire, a plurality of dilators having different sizes, a sheath, and a drainage catheter, which are all placed in a single package, wherein all the dilators have substantially the same tip length.