Modular Retractor Blades With Flanged And Cambered Tips
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Solution Overview
Problem
Current retractor systems in surgical procedures, particularly for spinal surgeries, lack control over tissue displacement and resistance feedback, limiting the surgeon's ability to precisely position and rotate blades independently, which is crucial for minimizing tissue trauma and achieving precise access to the surgical site.
Innovation Solution
A modular retractor system comprising blades with distinct tips (flanged and cambered) and connecting devices that allow independent positioning and rigid fixation, providing tactile feedback and flexible placement, reducing the need for additional assistance and clutter in the surgical area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If current retractor systems are used, then the surgical site can be accessed, but the surgeon cannot feel the resistance at the blades as tissue is being retracted, limiting control
Solution Approach 1:
The retractor system is divided into separate modular blades that can be independently positioned and connected. Each blade can be independently manipulated by the surgeon, allowing direct tactile feedback while retracting tissue. The modular design enables the surgeon to feel resistance at each blade individually, resolving the loss of tactile feedback while maintaining operational control.
Solution Approach 2:
The system provides direct tactile feedback to the surgeon through the blade handles during tissue retraction. The surgeon can feel the resistance encountered as tissue is displaced, enabling real-time adjustment of blade positioning and retraction force, thus preventing loss of information about tissue interaction.
2Ease of operation
If current retractor systems are used, then tissue can be retracted, but the surgeon's ability to position and rotate the blades independently is limited
Solution Approach 1:
The retractor consists of multiple independent blade segments that can be positioned and rotated separately. Each blade is a separate component that can be independently manipulated before being connected to other blades, allowing the surgeon to achieve precise independent positioning without requiring a complex integrated mechanism.
Solution Approach 2:
The blade connection mechanism allows for dynamic adjustment during surgery. Blades can be connected, disconnected, and repositioned as needed, providing flexibility in blade configuration while maintaining a relatively simple connection design that does not overly complicate the overall system.
3Object-affected harmful factors
If traditional retractor systems are used, then the surgical site can be exposed, but tissue trauma is not minimized due to lack of refined control
Solution Approach 1:
Different blade tips are designed with specific local qualities suited to different tissue types and surgical needs. The flanged tip provides broad distribution of force for general tissue retraction, while the cambered tip concentrates force for precise dissection. This local differentiation allows refined control at the tissue-blade interface, minimizing trauma while achieving precise positioning.
Solution Approach 2:
The system allows change of blade parameters including tip type, blade length, and blade orientation during surgery. By selecting and switching between different blade configurations, the surgeon can optimize the interaction between blade and tissue, achieving precise positioning with minimal trauma through parameter adjustment rather than requiring extremely high manufacturing precision.
Data Source
AI summary
Retractor blades for a retractor system are disclosed. The blades are designed for use in preparing an area of the body for a surgical procedure. The retractor blades are configured with different lengths and with different blade tip geometries to facilitate engagement with vertebrae for the oblique lateral interbody fusion surgical approach.