Blood Vessel Clip Applier Actuation Structure
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Solution Overview
Problem
The existing actuation structure of blood vessel clip appliers has a complex and unreliable transmission mechanism, leading to potential overlapping actions or neutral gears, which complicates the operation.
Innovation Solution
The proposed actuation structure includes a body with a bump, a tube set, a loading push rod, a bolt, a feeding loop claw, a loading plug, a loading spring, a recoil push rod, and a recoil spring, which work together to simplify the transmission mechanism by using a feeding loop claw that changes positions to push the loading plug forward and then drives the jaw clamp to secure a clip, ensuring a smoother and more reliable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a complex transmission mechanism is used in the actuation structure, then the device can achieve multiple functions, but the transmission becomes less reliable and may cause overlapping actions or neutral gears
Solution Approach 1:
The patent extracts and eliminates unnecessary transmission components from the actuation structure. By removing complex transmission mechanisms and intermediate gears, the design achieves reliable direct transmission while maintaining functional capability through simplified component arrangement.
Solution Approach 2:
The actuation structure is segmented into distinct functional modules: loading mechanism (loading push rod, loading spring), clamping mechanism (jaw, recoil push rod, recoil spring), and positioning components (bump, feeding loop claw). This segmentation allows each module to perform its function independently with reliable transmission.
2Adaptability or versatility
If a complex transmission mechanism is used, then the device can perform multiple operations, but the operation becomes less smooth and reliable
Solution Approach 1:
The actuation structure ensures continuous useful action through coordinated spring mechanisms. The loading spring continuously pushes the loading push rod, and the recoil spring continuously pushes the recoil push rod, ensuring smooth and continuous operation without interruptions or neutral zones.
Solution Approach 2:
The bump acts as an intermediary element that transfers motion smoothly from the feeding loop claw to the loading push rod. This intermediary component ensures smooth transition and continuous operation, eliminating operational disruptions.
3Reliability
If a simplified transmission mechanism is used, then the transmission becomes more reliable and smoother, but the device may lack functional complexity
Solution Approach 1:
The simplified actuation structure achieves multi-functionality through the versatile design of core components. The loading push rod and recoil push rod serve multiple purposes in loading and clamping operations, while the bump and feeding loop claw provide both positioning and motion transfer functions, maintaining functional complexity without structural complexity.
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 configuration simplifies the transmission mechanism, making it more reliable and smoother, thereby enhancing the operational efficiency of the blood vessel clip applier.
Implementation Method 1
a loading spring to push the loading plug to move backward; wherein when the front end of the feeding loop claw is pressed down and kept away from the loading plug, the loading spring pushes the loading plug back to the original position
Implementation Method 2
a recoil spring) used to push the recoil push rod to move backward
Implementation Method 3
an elastic piece set on said bolt. The elastic piece can be pressed against the rear end of the feeding loop claw so that the front end of the feeding loop claw is tilted out against the loading plug
Data Source
Figure 1
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AI summary
Disclosed is an actuation structure of a blood vessel clip applier, which is driven by an operating unit (200) to make a jaw (1) clamp a clip (35). The actuation structure of the blood vessel clip applier includes a body (100) with a bump (199); a tube set (700) connected to the body (100); a loading push rod (3) capable of pushing the clip (35) forward; a bolt (20) axially and movably arranged on the body (100); a feeding loop claw (21) pivoted at the bolt (20) and has a front end (211) and a rear end (212); a loading plug (17) arranged on the body (100) and linked to the loading push rod (3); a loading spring (18) for pushing the loading plug (17) to move backward; wherein when the front end (211) of the feeding loop claw (21) is tilted out, the loading plug (17) is pushed forward; when the front end (211) of the feeding loop claw (21) is pressed down and kept away from the loading plug (17), the loading spring (18) may push the loading plug (17) backward; a recoil push rod (6) so configured that after the loading plug (17) returns to the original position, the front end (211) of the feeding loop claw (21) is still depressed to push the recoil push rod (6) forward to drive the jaw (1) clamp the clip (35); and a recoil spring (19) for pushing the recoil push rod (6) to move backward.