Aneurysm Clip Push-Fit Rotary Lock Assembly
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Solution Overview
Problem
Existing aneurysm clips require complex assembly and subsequent machining to prevent detachment, which complicates the process and affects surface quality.
Innovation Solution
The aneurysm clip employs a push-fit rotary lock mechanism where two scissors-shaped clip parts are axially inserted and locked through rotation, eliminating the need for additional components and machining, with pivot guide sections and assembly recesses ensuring secure engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a small guiding plate is welded to secure the two clip parts, then detachment prevention is achieved, but assembly complexity increases and surface quality deteriorates due to required subsequent machining
Solution Approach 1:
The invention extracts and eliminates the small guiding plate component entirely. Instead of welding an additional plate to prevent detachment, the pivot guide sections are integrated directly into the clip parts themselves. The pivot guide sections are formed as guiding grooves that directly receive the pivot bearing sections, removing the need for separate securing components and subsequent machining operations.
Solution Approach 2:
The invention merges the function of the small guiding plate into the pivot guide sections that are formed directly on the clip parts. The guiding grooves in the pivot guide sections combine the positioning and securing functions that previously required a separate welded plate, thereby simplifying assembly and eliminating additional machining steps.
2Reliability
If a small guiding plate is welded to secure the two clip parts, then detachment prevention is achieved, but surface quality deteriorates due to required subsequent machining
Solution Approach 1:
By removing the welded guiding plate entirely, the invention eliminates the source of surface quality problems. The pivot guide sections are formed as integral guiding grooves on the clip parts, requiring no welding or subsequent machining that would compromise surface quality.
3Reliability
If additional components like a small guiding plate are used, then secure locking is achieved, but device complexity increases
Solution Approach 1:
The invention extracts and removes the small guiding plate component, reducing the total number of parts. The securing function is achieved through the integrated pivot guide sections with guiding grooves that directly engage the pivot bearing sections.
Solution Approach 2:
The pivot guide sections serve multiple functions: they guide the rotational movement, provide secure locking through the guiding grooves, and eliminate the need for separate securing components. This multi-functionality reduces overall device complexity while maintaining reliability.
Data Source
AI summary
An aneurysm clip with two rotatably connected scissors-shaped clip parts, each part having one clamping arm and one operating arm. The two clip parts are guided in such a fashion that they can be rotated in a working rotation range between a closed and an open end position. The two clip parts are connected to each other by a push-fit rotary lock, with the two clip parts axially inserted into one another in an open assembly rotation position outside of the working rotation range, and are axially locked to one another by subsequent rotation into the working rotation range.