Beating Heart Stabilizer with Flexible Contact
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Solution Overview
Problem
Conventional cardiac surgery techniques face challenges in maintaining a stable operating field during procedures on the heart, particularly due to the heart's vibrations, which can hinder precise surgical operations, especially when performed on a beating heart without the use of an artificial heart-lung device.
Innovation Solution
An operating field securing device is developed, featuring a contact portion that synchronizes with the heart's vibrations by using a deformable support structure and a manipulator holding portion to maintain a stable relative position, allowing for precise surgical procedures regardless of heart movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the heart is allowed to beat naturally during surgery, then the use of artificial heart-lung device can be avoided, but the heart's vibration makes precise surgical operations difficult
Solution Approach 1:
The stabilizer is designed with flexible contact portion support portions that can dynamically adapt to the heart's movements. The joining members allow the contact portion to move with the heart's beating while maintaining stable contact, enabling precise manipulation despite the organ's natural motion.
Solution Approach 2:
The stabilizer acts as an intermediary device between the surgeon's manipulator and the beating heart. It provides a stable interface that isolates the manipulator from the heart's vibrations, allowing precise surgical operations on a beating heart without requiring complete stabilization.
2Reliability
If a stabilizer is used to fix the heart surface, then the operating field is secured, but the device structure becomes complex
Solution Approach 1:
The stabilizer is divided into distinct functional segments: contact portions for securing the heart surface, contact portion support portions for providing structural support, and joining members for connecting these elements. This segmentation allows each component to be optimized independently while maintaining overall simplicity.
Solution Approach 2:
The contact portion support portions are designed to be flexible rather than rigid, allowing them to conform to the heart's surface and movements. This flexibility reduces the need for complex rigid structures and adjustment mechanisms while maintaining reliable contact and stability.
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
The device enables accurate and vibration-resistant surgical operations on the heart, ensuring consistent positional alignment between the surgical instrument and the heart, even when the heart is beating, thereby facilitating precise procedures without the need for complete heart stabilization.
Implementation Method 1
An elongated cable such as a wire is extended through the joining members. The tension of this cable is appropriately regulated to bend or deform the contact portion support portion, thereby inserting the contact portion support portion into the chest cavity.
Data Source
AI summary
An operating field securing device is configured as follows. Namely, An operating field securing device which secures an operating field when an internal organ is subjected to a predetermined procedure, the operating field securing device including a contact portion which comes in contact with the internal organ, and a manipulator holding portion which fixes the relative positions of the internal organ and a manipulator portion to subject the internal organ to the predetermined procedure, thereby holding the manipulator portion.