Adjustable Reamer Handle With Lockable Hinge
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Solution Overview
Problem
Current reamer handles in minimal invasive orthopedic surgery lack ergonomic design, are difficult to clean without risking component loss, and are not adaptable to different surgical motors, leading to high manufacturing costs and limited angular capability.
Innovation Solution
A reamer handle with a lockable movable hinge and adjustable motor connecting shaft, allowing for secure grip and movement transfer at various angles, and featuring detachable components for easy cleaning and compatibility with multiple surgical motors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the reamer handle is completely detachable for cleaning, then cleaning accessibility is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The reamer handle is divided into two main segments: a detachable handle portion and a body portion with stable movement transfer members. The handle can be completely removed from the body for thorough cleaning, while the stable movement transfer members remain integrated with the body to reduce manufacturing complexity. This segmentation allows cleaning without requiring complete disassembly of all components.
2Ease of operation
If the handle is fixed at a specific angle, then ergonomic control is improved, but adaptability to different surgical scenarios is reduced
Solution Approach 1:
The reamer handle incorporates an adjustable angle mechanism that allows the handle to be positioned at multiple angles relative to the body axis. The lockable adjustment lever with radius enables the handle to be fixed at desired angles (up to 63.5° relative to the body axis) while maintaining the capability to adjust to different angles as needed. This dynamic adjustability provides both ergonomic control and adaptability to different surgical scenarios.
3Stability of the object's composition
If the motor connecting shaft is integrated permanently, then structural stability is improved, but cleaning accessibility and component recovery are reduced
Solution Approach 1:
The motor connecting shaft is designed as a detachable component that can be separated from the body during cleaning procedures. This segmentation allows the motor connecting shaft to be removed for thorough cleaning and inspection, reducing the risk of component loss during washing. The detachable design maintains structural stability during use while improving cleaning accessibility.
4Adaptability or versatility
If the handle provides multiple angular positions, then adaptability is improved, but device complexity increases
Solution Approach 1:
The lockable adjustment lever with radius is designed to be operated directly by the user without requiring additional tools or complex mechanisms. The lever engages with locking positions on the adjustment mechanism, allowing the user to easily set and secure the handle at desired angles. This self-service design provides multiple angular positions while minimizing the complexity of the adjustment mechanism.
Data Source
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AI summary
The invention is particularly related to a reamer handle which provides a handle (8) in different angles and provides a motor connection to be used for moving the hemispherical reamers in different diameters changing in accordance with the bone size for reaming the pelvis (acetabulum) in minimal invasive orthopedic surgery.