Joint Manipulation Device with Parallel Rod Segments
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Solution Overview
Problem
Current joint manipulation devices lack efficient mechanisms for parallel movement of limb support mechanisms relative to a user's joint, particularly for knee joints, and often require cumbersome setups or fixed angles, limiting versatility and user comfort.
Innovation Solution
A joint manipulation device featuring a linear actuator with movable first rod segments supported by wheels and secured second rod segments, along with a limb support mechanism, allows for parallel movement and adjustable angles through electromechanical means, including a frame assembly and footplate adjustor, enabling effective manipulation of joints like the knee.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If current joint manipulation devices use fixed angle mechanisms, then structural simplicity is maintained, but versatility and user comfort are limited
Solution Approach 1:
The patent implements a parallel motion mechanism that enables the limb support mechanism to move in parallel with the linear actuator while maintaining adjustable angles. This dynamic structure allows the device to adapt to different joint manipulation requirements without requiring complete structural redesign, thus improving versatility while controlling complexity through modular design
Solution Approach 2:
The linear actuator is divided into at least two rod segments that can move relative to each other, with the limb support mechanism attached to one segment. This segmentation enables independent motion control and angle adjustment, allowing the device to achieve multiple manipulation angles and positions while maintaining a relatively simple overall structure
2Ease of operation
If joint manipulation devices use cumbersome setups, then stability is improved, but ease of operation deteriorates
Solution Approach 1:
The patent replaces complex mechanical setup mechanisms with an electromechanical linear actuator system. The actuator electronically controls the motion and positioning of the limb support mechanism, eliminating the need for manual mechanical adjustments and cumbersome setups, thereby improving ease of operation while maintaining stability through controlled actuation
Solution Approach 2:
The parallel motion mechanism is designed to automatically maintain the parallel relationship between the limb support mechanism and the linear actuator during motion. This self-adjusting feature eliminates the need for manual alignment and setup adjustments, allowing the device to operate smoothly with minimal user intervention
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 device provides efficient and adjustable joint manipulation, enhancing user comfort and versatility by allowing parallel movement and adjustable angles, thereby improving the effectiveness of joint manipulation tasks.
Implementation Method 1
The device may further include the movement of the device by an electromechanical means
Data Source
AI summary
A device for manipulating a joint of a limb of a user, including a linear actuator composed of at least two segments; one or more first rod segments is positioned relative to the user, supported by a wheel assembly having one or more wheels, such that the first rod segments is movable relative to a support surface, including a floor; one or more second rod segments is located relative to the user and is secured, such as a chair, such that the position of the second rod segments are secure; and a limb support mechanism is attached to the first rod segments such that when the first rod segments of the linear actuator moves, the limb support mechanism moves in a substantially parallel path as the actuator, and the limb of the user is manipulated. A footplate adjustor, wherein the footplate adjustor adjusts an angle of a foot plate.