Modular Arthroplasty Table With Sliding Traction Positioning
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Solution Overview
Problem
Existing medical tables for minimally invasive hip and knee replacement surgeries are costly and may not provide the necessary flexibility and user-friendliness for smaller patient care centers, while also lacking in cost-effectiveness and ease of use.
Innovation Solution
A medical table with a carbon fiber construction, spherical spatial positioning system, motorized femoral support, and remote control unit, allowing for precise positioning and traction control, while reducing the need for manual adjustments and minimizing muscle disturbance during surgery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If existing medical tables are used for minimally invasive hip and knee replacement surgeries, then basic support function is provided, but cost is high and flexibility and ease of use are insufficient
Solution Approach 1:
The medical table is divided into modular components including a platform portion, spars, traction systems, and a control module that can be independently adjusted. This segmentation allows the system to provide advanced functionality while maintaining cost-effectiveness by enabling selective use of features.
Solution Approach 2:
The medical table is designed to perform multiple functions including patient positioning, traction application, and support for various surgical approaches (anterior, lateral, posterior). The spherical spatial positioning system and motorized femoral support enable the same table to accommodate different surgical techniques and patient care center needs.
2Manufacturing precision
If manual adjustments are used for positioning, then device complexity is reduced, but positioning precision and user-friendliness deteriorate
Solution Approach 1:
Manual mechanical adjustment systems are replaced with a motorized positioning system controlled by a remote control unit. The motorized spars and femoral support provide precise positioning through electronic control, eliminating the need for manual cranking while improving positioning accuracy and ease of use.
Solution Approach 2:
The medical table includes self-adjusting features such as the spherical spatial positioning system that automatically maintains proper positioning during movement, and motorized systems that respond to simple remote control inputs, reducing the need for complex manual intervention while maintaining precision.
3Productivity
If traditional surgical approaches are used, then access to acetabulum is achieved, but muscle tissue must be detached or severed resulting in longer recovery
Solution Approach 1:
The medical table provides dynamic positioning capabilities that allow the patient's leg to be manipulated into optimal positions for minimally invasive surgery. The motorized spars and femoral support enable real-time adjustment of limb position during surgery, facilitating access to the acetabulum without requiring muscle detachment or severing.
Solution Approach 2:
The table enables change in critical parameters including leg position, angle, and orientation through motorized adjustment. These parameter changes allow the surgeon to achieve necessary access for acetabular reaming and prosthesis insertion while maintaining muscle integrity through minimally invasive approaches.
Data Source
AI summary
A medical table provides the functionality needed for hip and knee arthroplasty at a cost that is acceptable for smaller patient care centers. Such a table can use a sliding mechanism to maintain traction during positioning of a patient's leg. The table also can utilize a knee arthroplasty attachment to provide for precise knee positioning, such as by using a sliding assembly attached to a spar of the table. The table can include a pair of actuators providing for both lateral tilt and trendelenburg motions, which reduces the complexity from previous tables. The table also can include a removable power/control module, which allows for quick and easy replacement of damaged components.