Spinal Bone Displacement Device with Pivotal Angular Adjustment
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Solution Overview
Problem
Existing spinal column positioning devices lack versatility in controlling bone displacement and angular adjustments, leading to impractical use and potential damage during surgical procedures.
Innovation Solution
A device with maneuverable actuating units for pivotal adjustment of engagement elements, allowing independent angular positioning and parallel displacement of vertebrae, featuring telescopic distance units and adjustable engagement elements with screw treads for secure bone engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If friction joints are used to connect engagement means to distance means, then the engagement means can be movably fastened to avoid excess breaking forces, but the joints require relatively hard tightening and cannot easily alter angles under load
Solution Approach 1:
The patent employs dynamic joints that allow angular adjustment of engagement elements relative to distance units even when loaded. The support parts are designed with rotational freedom around pivot pins, enabling the system to adapt its configuration under operational loads rather than requiring disassembly or excessive tightening forces.
Solution Approach 2:
The invention changes the operational parameters of the connection joints by introducing low-friction rotational interfaces. This allows the engagement elements to change their angular position relative to the distance units while maintaining secure connection, enabling parameter adjustment (angle) without compromising connection reliability.
2Device complexity
If parallel coupled adjustment means are used for maneuvering engagement screws, then the structure is simplified, but controlled movement of screws is practically impossible due to altered angles causing separation
Solution Approach 1:
The patent segments the adjustment function by providing independent adjustment means for each engagement element rather than parallel coupled means. Each support part can be adjusted independently around its pivot pin, allowing controlled movement of individual screws without affecting the angular position of others, thus maintaining parallel displacement capability.
Solution Approach 2:
The support parts are designed with universal rotational capability around pivot pins, allowing them to function both as structural supports and as adjustable positioning mechanisms. This multi-functionality enables controlled screw movement while maintaining the simplified parallel coupled structure.
3Stability of the object's composition
If engagement elements are firmly fixed to distance units, then structural stability is improved, but versatility in manipulating bones and achieving desired angular positions is reduced
Solution Approach 1:
The invention introduces dynamic connectivity between support parts and distance units through pivot pins. This allows the structure to maintain stability through secure connection while simultaneously providing the adaptability needed for bone manipulation and angular positioning. The system transitions from a static fixed connection to a dynamic articulated connection.
Solution Approach 2:
The patent merges the functions of structural support and angular adjustment into a single integrated support part design. The support part simultaneously provides structural stability through its connection to the distance unit and enables angular adjustment through rotation around the pivot pin, combining both requirements into one component.
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
Enables precise and controlled manipulation of vertebrae separation and angular positioning, facilitating safe implant placement while minimizing damage to surrounding tissues and organs.
Implementation Method 1
the engagement elements have screw treads for uncomplicated engagement with bones
Data Source
AI summary
Embodiments of the present disclosure are directed to a systems, devices and methods for displacing bones of a living mammal. In some embodiments, a device is provided which includes at least two engagement elements positioned at a distance from each other for engagement with two separate bones Each of the engagement elements may be carried by a support part which in turn is supported in a support portion of a distance unit (5). The said support part and support portion form a support unit, where each engagement element extends at an angle (α) with respect to a straight line (L) between two support units. At least one of the support units includes an arrangement for altering the angle which includes an actuating unit maneuverable for adjustment of the angle (α). Some embodiments of the disclosure are directed to a system for engagement with vertebrae including such devices (noted above), as well as uses of the device and associated methods of treatment.