Surgical Instrument Rotatable Handle and Image Guide for Spinal Implant Positioning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current surgical methods for treating spinal disorders, such as degenerative disc disease and osteoporosis, face challenges in accurately positioning and securely fixing spinal implants during procedures, leading to potential instability and complications.
Innovation Solution
A surgical instrument with a rotatable handle and image guide system that communicates with a sensor to provide real-time positioning data, allowing for precise placement and secure locking of spinal implants, combined with a navigation system for enhanced accuracy and ergonomic handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a surgical instrument with image guide and sensor system is used, then positioning accuracy of spinal implant is improved, but device complexity increases
Solution Approach 1:
The image guide is integrated within the surgical instrument shaft, and the sensor system is incorporated into the handle assembly. This nesting approach allows multiple functional components (image guide, sensors, actuator mechanism) to be combined in a compact configuration, reducing overall system complexity while maintaining high positioning accuracy through real-time feedback.
Solution Approach 2:
The sensor system continuously monitors the position and orientation of the surgical instrument relative to the spinal implant, providing real-time feedback to the control system. This feedback mechanism enables automatic adjustment and verification of implant positioning, achieving high measurement precision without requiring overly complex manual measurement procedures.
2Ease of operation
If a rotatable handle with actuator is used, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The handle is designed to be rotatable about the longitudinal axis of the shaft, allowing the surgeon to dynamically adjust the handle orientation for optimal ergonomic positioning. The actuator mechanism provides dynamic locking and unlocking capabilities, enabling smooth transitions between different operational states while maintaining structural integrity.
Solution Approach 2:
The handle assembly is segmented into distinct functional components: the rotatable grip portion, the actuator mechanism, and the connection interface with the shaft. This segmentation allows each component to be optimized independently for its specific function while simplifying the overall design and maintenance of the surgical instrument.
3Measurement precision
If image guide is fixed with member, then measurement precision is improved, but adaptability decreases
Solution Approach 1:
The fixed image guide is designed with universal mounting features and standardized interfaces that allow it to be integrated with various surgical instrument configurations. The sensor system can track multiple anatomical landmarks and implant types, providing versatile functionality across different spinal procedures while maintaining consistent measurement precision through its fixed attachment.
Data Source
AI summary
A surgical instrument comprises a member defining a longitudinal axis and is connectable with a spinal implant. The member is connected to a handle disposed transverse relative to the axis and rotatable about the axis. An image guide is connected with the member and oriented relative to a sensor to communicate a signal representative of a position of the spinal implant. Systems, implants, spinal constructs and methods are disclosed.