Three-Arm Surgical Clip for Simultaneous Vessel Clamping
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Solution Overview
Problem
Existing surgical clips for connecting or clamping blood vessels are limited in their versatility and require complex sewing procedures, which are time-consuming and precise, especially in bypass operations.
Innovation Solution
A surgical clip with three rotatable double-armed clip parts and a leg spring that allows for simultaneous clamping of two vessels without releasing the first vessel, using a middle clip part and outer clip parts with clamping arms that can be opened and closed independently to accommodate vessel ends and walls, facilitating connection without sewing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a traditional two-armed surgical clip is used to clamp blood vessels, then the structure is simple, but it requires releasing the first vessel to clamp the second vessel, increasing operation time
Solution Approach 1:
The surgical clip is divided into multiple independent clip parts (first clip part, second clip part, third clip part) that can rotate independently around a common axis. Each clip part has its own clamping arms that can be opened and closed independently, allowing simultaneous clamping of multiple vessels without releasing previously clamped vessels.
Solution Approach 2:
The multi-part clip structure provides universal functionality by enabling simultaneous clamping of multiple blood vessels (at least two vessels) with a single device. The rotating mechanism allows each clip part to independently access and clamp different vessels, making the device versatile for various vascular connection scenarios.
2Adaptability or versatility
If a surgical clip allows simultaneous clamping of multiple vessels, then versatility improves, but the mechanism complexity increases
Solution Approach 1:
Multiple clip parts are combined around a common rotation axis, sharing the same rotational degree of freedom. This merging approach allows independent clamping actions on multiple vessels while using a unified rotational mechanism, reducing overall system complexity compared to having separate mechanisms for each clamping action.
Solution Approach 2:
The clip parts are designed to be rotatable rather than fixed, providing dynamic adaptability. The rotating mechanism allows the clip parts to be positioned and oriented as needed for different vessel configurations, enhancing versatility while maintaining a relatively simple mechanical structure through controlled motion.
3Productivity
If traditional sewing procedures are used to connect blood vessels, then connection precision is achieved, but operation time increases
Solution Approach 1:
The surgical clip provides a mechanical clamping and connection system that replaces traditional sewing procedures. By using the rotating multi-part clip structure to clamp and hold blood vessels in position, the need for time-consuming suturing is reduced or eliminated, achieving both faster operation and precise connection through the mechanical clamping action.
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
Enables efficient and precise connection of two blood vessels by allowing one vessel to be clamped while the second can be fixed without releasing the first, significantly reducing operation time and complexity in bypass procedures.
Implementation Method 1
a spring pretensioning the two outer clip parts into a closed clip position in which the clamping arms of the two outer clip parts and the middle clip part abut one another
Implementation Method 2
the two outer clip parts each comprise a circular roller section between the operating and clamping arms, and a quarter-circular bearing shell, the roller section and the bearing shell being arranged coaxially to one another with the outer diameter of the roller section and the diameter of the bearing shell being identical, and wherein the middle clip part comprises a circular roller section between the operating and clamping arms. The axis of rotation is formed by the roller sections and the bearing shells which together form a roller bearing.
Data Source
AI summary
A surgical clip includes a spring pretensioning two outer double-armed clip parts and a double-armed clip part rotatably mounted. Each outer double-armed clip part includes one operating arm configured to be pressed together into an open clip position by an applying forceps and one clamping arm. The middle clip part has a clamping arm arranged between the clamping arms of the two outer clip parts and an operating arm arranged between the operating arms of the two outer clip parts. The middle clip part's operating arm is configured to be opened in relation to either of the operating arms of the two outer clip parts by the applying forceps engaging a respective side of the middle clip part's operating arm associated with the operating arm of either of the two outer clip parts to open the middle clip part's clamping arm and the respective middle clip part's clamping arm.