Vertebral Instrument with Selective Hook Rotation
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Solution Overview
Problem
Existing surgical instruments for adjusting vertebrae positioning are often difficult to use, awkward, and time-consuming, particularly in complex surgical pathologies, and may be limited to performing only one aspect of a procedure, such as compression or distraction.
Innovation Solution
A surgical instrument system comprising first and second end members that are freely movable in one configuration and only movable upon rotation in another, with hook portions that can be selectively rotated for compression or distraction, and a system of anchor extenders and instruments that allow for adjustable positioning of vertebrae through a combination of instruments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If prior compression and distraction tools are used, then bone positioning adjustment can be achieved, but the instruments are difficult to use, awkward, and time-consuming
Solution Approach 1:
The instrument combines both compression and distraction functions in a single device. The first and second end members can be positioned relative to each other in either a first configuration for compression or a second configuration for distraction, eliminating the need for separate instruments and reducing surgical time while improving ease of operation.
2Adaptability or versatility
If prior compression and distraction tools are used, then bone positioning adjustment can be achieved, but the instruments are limited to performing only one aspect of a surgical procedure
Solution Approach 1:
The instrument integrates multiple functions including compression, distraction, and positioning adjustments within a single device structure. The end members can be freely movable in one configuration and rotationally movable in another configuration, providing versatility without proportionally increasing complexity.
Solution Approach 2:
The instrument incorporates dynamic movement capabilities where end members can transition between different configurations. The selective rotatability and freedom of movement allow the instrument to adapt to different surgical requirements (compression vs. distraction) while maintaining a unified structural design.
Data Source
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AI summary
Systems, methods, devices and instruments for adjusting the relative positioning of bones or bony tissues, such as two or more vertebrae, are provided. More particularly, in one form, an instrument includes first and second end members that are freely movable relative to one another in a first configuration of the instrument, while in a second configuration the first and second end members are only movable relative to one another upon rotation of a displacement member. In one aspect of this and/or other forms, the first and second end members include hook portions that are selectively rotatable relative to one another such that the instrument can be used for compression or distraction of the bones or bony tissues. In another form, techniques for adjusting the relative positioning of bones or bony tissues are provided.