Vascular Anastomosis Device Self-Alignment Mechanism
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Solution Overview
Problem
Conventional vascular anastomosis devices using staplers rely on manual techniques, which are skill-dependent and prone to errors, leading to poor fastening effects, blood leakage, and increased surgical risks due to uneven vessel alignment and brittle vessel handling.
Innovation Solution
A vascular anastomosis device with a vascular jaw unit and a first vascular fastening component, featuring a vascular anastomosis ring and a mechanism to pivotally rotate and clamp blood vessels at a 90-degree angle, ensuring consistent and secure vessel joining through a series of interconnected tubes and guiding rails.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual stapler operation is used, then the surgeon can perform vascular anastomosis, but the fastening effect is poor and blood leakage occurs due to skill dependency and uneven vessel alignment
Solution Approach 1:
The device enables self-alignment of blood vessels through the guiding rail mechanism, where the vessel naturally follows the guide to achieve proper positioning without requiring high surgical skill. The spreading member automatically spreads the vessel wall at 90 degrees, and the stapler head self-adjusts to ensure consistent fastening depth and angle, eliminating the need for surgeon skill in manual alignment.
Solution Approach 2:
The guiding rail acts as an intermediary between the stapler and the blood vessel, providing a fixed trajectory that ensures proper alignment. The spreading member serves as an intermediary that prepares the vessel wall by spreading it at a precise 90-degree angle, creating optimal conditions for stapling without requiring surgeon skill for manual manipulation.
2Productivity
If manual vessel manipulation is used, then the surgeon can attempt vessel joining, but operation time is consumed and alignment time is increased due to difficult handling of hardened or brittle vessels
Solution Approach 1:
The spreading member automatically spreads the blood vessel wall at a precise 90-degree angle through its mechanical design, eliminating the need for surgeons to manually manipulate hardened or brittle vessels. The guiding rail self-aligns the vessel trajectory, and the stapler head self-adjusts to proper positioning, making the entire process independent of surgeon skill and significantly reducing operation time.
3Reliability
If conventional stapler method is used, then vessel joining can be performed, but the fastened blood vessel may fall off due to inconsistent fastening effect
Solution Approach 1:
The device ensures consistent fastening through self-adjusting mechanisms: the guiding rail maintains fixed trajectory, the spreading member automatically achieves 90-degree vessel wall spreading, and the stapler head self-positioning ensures uniform stapling depth and angle. This eliminates manual operation variability and guarantees consistent fastening results every time.
4Reliability
If manual fastening is used, then the surgeon can perform anastomosis, but additional surgical risks occur due to poor alignment and potential vessel damage
Solution Approach 1:
The guiding rail acts as an intermediary that provides a fixed, precise trajectory for vessel alignment, eliminating the imprecision of manual alignment. The spreading member serves as an intermediary that prepares the vessel wall by spreading it at a precise 90-degree angle, creating optimal conditions for safe stapling without requiring surgeon skill for manual manipulation.
Solution Approach 2:
The device performs self-alignment through the guiding rail mechanism, self-preparation of the vessel wall through automatic spreading at 90 degrees, and self-positioning of the stapler head, ensuring precise alignment and reducing surgical risks independent of surgeon skill.
Data Source
AI summary
A vascular anastomosis device includes a vascular jaw unit and a first vascular fastening component, wherein the vascular jaw unit is provided with a vascular anastomosis ring assembled on the first vascular fastening component. The first vascular fastening component includes a first tube provided with a first opening and a first guiding rail, a vascular positioning member connected with the first tube, a second tube arranged in the first tube, a vascular supporting unit assembled on the second tube and disposed near to the vascular positioning member, an advancing member arranged in the first tube, and a third tube arranged in the advancing member and provided with a cross rod and a guiding rod, wherein the vascular supporting unit includes a vascular supporting body and a vascular spreading member.