Anastomosis Device with Integrated Needle Coupling
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Solution Overview
Problem
Existing anastomosis techniques for small tubular organs, such as blood vessels and lymph vessels, are complex and time-consuming, particularly when attempting to join small vessel stumps during surgical procedures.
Innovation Solution
The anastomosis arrangement comprises a pair of axially symmetric stump-coupling members with opposite projections and integrated suturing units, featuring pairs of curved needles linked by a common thread. These needles are manipulated within channels to pivot and pierce the vessel walls, facilitating efficient suturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional suturing techniques are used for joining small vessel stumps, then the anastomosis can be completed with simple equipment, but the procedure becomes complex and time-consuming
Solution Approach 1:
The patent combines multiple suturing needles and threads into a single integrated device. The coupling members hold multiple needles in predetermined positions, allowing simultaneous or sequential suturing of multiple vessel wall points without requiring separate needle handling for each suture, thereby reducing procedural complexity while increasing anastomosis speed
Solution Approach 2:
The needles are pre-positioned within the coupling members at optimal locations for anastomosis. This preliminary arrangement eliminates the need to individually position and orient each needle during the procedure, reducing the time and complexity of the suturing process while maintaining precise placement for effective vessel joining
2Reliability
If multiple separate sutures are made between opposite stumps, then the connection can be secure, but the procedure becomes complex and time-consuming
Solution Approach 1:
Multiple suturing functions are merged into a single device operation. The coupling members contain multiple needles that can be actuated simultaneously or in sequence to create multiple sutures in one integrated action, ensuring secure connection while minimizing the time required compared to traditional sequential suturing
Solution Approach 2:
The positions and orientations of multiple needles are predetermined and pre-configured within the coupling members. This preliminary setup ensures that when the needles are actuated, they automatically create properly positioned sutures for secure anastomosis connection without requiring time-consuming manual adjustment during the procedure
Data Source
AI summary
Provided is an anastomosis arrangement for joining two opposite stumps of a tubular organ in a streamlined anastomosis procedure. The arrangement includes a pair of axially symmetric stump-coupling members that accommodate pairs of counterpart suturing needles, linked together by common suturing threads, and manipulable by a needle-manipulation element to extract the needles tips from the stump-coupling members for piercing walls of the stump.