Elastic Spine Retractor for Hands-Free Surgery Hole Maintenance
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Solution Overview
Problem
Conventional spine retractors require continuous manual control to maintain a surgery hole during minimally invasive spine surgery, complicating the procedure and often leading to interference with other medical instruments.
Innovation Solution
A spine retractor with an elastic means providing retractive force to maintain the surgery hole, featuring a main body with horizontal and vertical retraction portions and a support member to transmit this force, allowing for easy installation and minimal interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional retractor is used to secure the surgery hole, then the surgery hole can be maintained, but continuous manual control is required which complicates the procedure and interferes with other medical instruments
Solution Approach 1:
The retractor is designed with an elastic means that automatically provides retractive force to maintain the surgery hole without requiring continuous manual control. The elastic means stores elastic energy and releases it to exert force on the main body, enabling the device to maintain the surgery hole autonomously throughout the surgical procedure.
Solution Approach 2:
The elastic means is pre-loaded with elastic energy before the surgical procedure begins. This preliminary storage of energy allows the retractor to immediately start providing retractive force as soon as it is installed, eliminating the need for continuous manual adjustment during surgery.
2Reliability
If a conventional retractor is used to secure the surgery hole, then the surgery hole can be maintained, but the construction becomes complex and interferes with other medical instruments
Solution Approach 1:
The retractor is divided into distinct functional components: a main body that interfaces with the surgery hole, an elastic means that provides force, and a support member that transmits the force. This segmentation allows each component to be optimized independently and simplifies the overall construction by using simple, well-defined parts.
Solution Approach 2:
The elastic means is positioned at a specific location relative to the main body to provide retractive force at the most effective point. The support member is configured to transmit this force efficiently to where it is needed, ensuring that the force application is optimized for maintaining the surgery hole while minimizing interference with other instruments.
3Reliability
If the retractor size is increased to fix the retractor, then the retractor can be secured, but interference with other medical instruments occurs and convenience in use decreases
Solution Approach 1:
The elastic means is pre-loaded with elastic energy before the surgical procedure begins. This preliminary storage of energy allows the retractor to immediately start providing retractive force as soon as it is installed, eliminating the need for continuous manual adjustment during surgery.
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 retractor securely maintains the surgery hole without manual control, minimizing tissue damage and interference with other instruments, and facilitating stable surgical instrument insertion and field of view guidance.
Implementation Method 1
an elastic means configured to provide retractive force necessary to maintain the surgery hole to the main body
Implementation Method 2
a support member formed between the main body and the elastic means, the support member being configured to transmit the retractive force to the main body
Data Source
AI summary
The present invention relates to a retractor for spinal surgery, wherein the retractor is intended to secure and maintain a surgery hole during minimally invasive surgery (MIS) for spinal diseases. The retractor is characterized by comprising: a main body fastened to a surgery hole to maintain the surgery hole; an elastic means which provides the main body with a retraction force for maintaining the surgery hole; and a support member formed between the main body and the elastic means to transmit the retraction force to the main body. Accordingly, due to being provided with the elastic means that provides the main body with the retraction force for maintaining the surgery hole, the retractor does not need to be controlled by medical personnel, is convenient to install in the surgery hole, has a simple structure, and hardly interferes with other medical devices, and thus is convenient to use.