Orthopedic Table Leg Support with Slide Assembly Traction
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Solution Overview
Problem
Current surgical procedures for knee and hip replacements require cumbersome manipulation and re-orientation of the patient's leg, which complicates the surgical process and prolongs the operation time due to the lack of efficient leg positioning and traction systems.
Innovation Solution
An orthopedic table with a movable leg support system that includes a traction device connected to the leg, allowing for axial movement, angular rotation, and declination of the leg, enabling precise positioning and adjustment of the patient's leg during surgery, facilitated by a slide assembly and adjustable features for both coarse and fine adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional manual manipulation methods are used for leg re-orientation during surgery, then the surgical procedure can be performed, but the operation time is prolonged and the process becomes cumbersome
Solution Approach 1:
The leg support structure incorporates multiple movable components including a horizontally movable carriage, a vertically adjustable boom arm, and a rotatable traction device. These dynamic elements enable rapid re-orientation of the patient's leg through coordinated movement along horizontal and vertical axes, eliminating the need for time-consuming manual manipulation and positioning adjustments during surgery
Solution Approach 2:
A traction device serves as an intermediary mechanism between the leg support structure and the patient's leg. This device provides controlled traction and positioning forces, enabling precise leg re-orientation without requiring direct manual handling by surgical staff, thereby reducing operation time and improving surgical efficiency
2Measurement precision
If complex leg positioning systems are implemented to enable precise leg re-orientation, then positioning accuracy is improved, but device complexity increases
Solution Approach 1:
The leg support system is divided into distinct functional modules: a base-mounted horizontally movable carriage, a vertically adjustable boom arm, and a rotatable traction device. Each module handles a specific degree of freedom (horizontal movement, vertical adjustment, rotational positioning), allowing precise leg re-orientation through coordinated simple movements rather than complex integrated mechanisms
Solution Approach 2:
The leg support structure is designed as a multi-functional assembly where the carriage provides horizontal movement, the boom arm provides vertical adjustment, and the traction device provides rotational positioning and traction forces. This universal design enables a single system to handle multiple positioning requirements (horizontal position, vertical height, angular orientation) that would otherwise require separate dedicated devices
Data Source
AI summary
A patient support apparatus is defined that includes a patient support having one or more pads for supporting a patient's torso and hip in a generally horizontal orientation. At least one, elongated leg support extends from the patient support. The leg support is movable through a generally horizontal plane. A portion of the leg support is declinable and inclinable from the horizontal plane. A traction device is connected to the leg support. The traction device is attachable to a patient's leg and operable to exert a traction force on the patient's leg along an axis of the traction device. The traction device is connected to the leg support by a slide assembly and the traction device can be secured stationary relative to the leg support or the traction device can slide relative to the leg support.