Multiple Clip Applier for Minimally Invasive Surgery
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Solution Overview
Problem
Current single-shot clip appliers in minimally invasive surgery require frequent installation and removal, increasing the risk of surgical infection, operation time, and workload, as they can only clamp one closure clip at a time, leading to inefficiencies and potential bleeding or leakage.
Innovation Solution
A multiple clip applier designed with a fixing handle, conveying handle, clamping handle, pushing mechanism, clip tube, and closure clip assembly, allowing for the loading of different numbers of closure clips with varying specifications, enabling quick and continuous closure of lumen tissues, reducing infection risk and improving operational efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single-shot clip applier is used to clamp one closure clip at a time, then the device structure remains simple, but the operation time increases and the risk of surgical infection increases due to frequent installation and removal
Solution Approach 1:
The patent combines multiple closure clips into a single loading unit that can be loaded once and used repeatedly. The multiple closure clips are arranged in a loading chamber and sequentially deployed through the firing mechanism, allowing the applier to clamp multiple lumen tissues without repeated installation and removal operations.
Solution Approach 2:
The clip applier is designed with a universal loading chamber and firing mechanism that can accommodate and deploy multiple closure clips of different specifications. The device performs multiple clipping functions with a single loading operation, making it adaptable to various surgical scenarios requiring multiple tissue closures.
2Device complexity
If a single-shot clip applier is used, then the device structure remains simple, but the workload of medical personnel increases due to frequent installation, use, cleaning and maintenance
Solution Approach 1:
The patent combines multiple closure clips into a single loading unit that can be loaded once and used repeatedly. The multiple closure clips are arranged in a loading chamber and sequentially deployed through the firing mechanism, allowing the applier to clamp multiple lumen tissues without repeated installation and removal operations.
3Device complexity
If a single-shot clip applier is used, then the device structure remains simple, but the risk of surgical infection increases due to frequent entry and exit from human body lumen
Solution Approach 1:
The patent combines multiple closure clips into a single loading unit that can be loaded once and used repeatedly. The multiple closure clips are arranged in a loading chamber and sequentially deployed through the firing mechanism, allowing the applier to clamp multiple lumen tissues without repeated installation and removal operations.
4Productivity
If multiple closure clips are loaded in one applier, then the productivity increases, but the device complexity increases with multiple components
Solution Approach 1:
The patent employs a nested structure where multiple closure clips are arranged within a loading chamber that is integrated into the applier body. The clips are positioned in a compact configuration within the hollow loading chamber, allowing multiple clips to be stored and deployed sequentially through the existing firing mechanism without requiring separate appliers for each clip.
Data Source
AI summary
A multiple clip applier including a fixing handle, a conveying handle, a clamping handle, a pushing mechanism, a clip tube, a clip head and a closure clip assembly is provided. The clip head is arranged at one end of the clip tube, the clip tube is provided with a loading groove. The closure clip assembly is detachably arranged in the loading groove, and the clip tube includes an outer and an inner clip tube; the conveying handle and the clamping handle are both hinged with the fixing handle; and the clamping handle is linked with the outer clip tube to control opening or closing of the clip head. The closure clip assembly includes a plurality of closure clips; and the conveying handle is linked with the pushing mechanism to move along the length direction of the inner clip tube, thereby driving the closure clips to move towards the clip head.