Rotatable Blade Surgical Instrument for Spinal Correction
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Solution Overview
Problem
Current surgical technologies for treating spinal disorders, such as degenerative disc disease and curvature abnormalities, often struggle with efficient vertebral manipulation and stabilization, particularly in achieving precise correction and stabilization of the spine.
Innovation Solution
The surgical system comprises a set of instruments including a first member with a rotatable blade and a second member with a pivotably connected blade, allowing for distraction and compression of vertebrae. These instruments are designed to work in conjunction with implant supports and bone fasteners to achieve precise spinal correction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional surgical instruments are used for vertebral manipulation, then spinal stabilization can be achieved, but precise correction and manipulation efficiency are limited
Solution Approach 1:
The surgical instrument incorporates movable components including a rotatable blade that can rotate about a longitudinal axis and a pivotable joint that allows angular adjustment. These dynamic elements enable precise control over the manipulation force application angles, allowing the surgeon to achieve precise vertebral correction while maintaining high manipulation efficiency through controlled movement rather than static positioning.
Solution Approach 2:
The instrument is divided into multiple functional segments: a handle portion, a shaft portion, a rotatable blade, and a pivotable joint. This segmentation allows each component to perform its specific function independently - the handle for operation, the shaft for transmission, the blade for contact, and the pivot for angle adjustment - thereby achieving both precision and efficiency in spinal manipulation.
2Reliability
If spinal implants are manipulated for compression and distraction, then vertebral stabilization is achieved, but tissue damage increases
Solution Approach 1:
The blade is designed with specific geometric properties including a sharp edge and a particular angular configuration that concentrates the manipulation force at a localized point on the vertebral bone. This local quality concentration allows effective stabilization through compression and distraction while minimizing the spread of force to surrounding soft tissues, thereby reducing tissue damage.
Solution Approach 2:
The rotatable blade acts as an intermediary element between the surgical instrument and the vertebral bone. It can be rotated to different angular positions to optimize the contact point and force distribution, serving as a mediator that transmits stabilization forces while protecting surrounding tissue from direct contact and damage.
3Adaptability or versatility
If multiple surgical instruments are used for spinal treatment, then comprehensive correction can be achieved, but device complexity increases
Solution Approach 1:
The surgical instrument is designed as a multi-functional device that can perform multiple correction operations through its rotatable and pivotable components. The same instrument can apply compression, distraction, and angular correction forces by adjusting the blade orientation, eliminating the need for multiple specialized instruments and thereby reducing overall device complexity while maintaining comprehensive correction capability.
Data Source
AI summary
A surgical instrument includes a first member including a first portion and a second portion. The second portion includes an arm and a part. The part is connectable with a first blade such that the first blade is rotatable about the longitudinal axis through a selected angular range and about the transverse axis through a selected angular range. A second member includes a first portion and a second portion that is connectable with a second blade. The first portions are pivotably connected such that the blades are movable between a first configuration and a second configuration to define an opening and space tissue adjacent a spine. Surgical systems, constructs, implants and methods are disclosed.