Bone-Mounted Robotic Hip Surgery System with Modular Segmentation
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Solution Overview
Problem
Current robotic-assisted orthopedic surgery systems face challenges such as technological complexity, high costs, steep learning curves, and susceptibility to external forces, which can lead to inaccuracies and complications in procedures like hip and shoulder replacements.
Innovation Solution
A bone-mounted robotic-assisted surgical system is developed, which includes a customizable registration guide for precise anatomical alignment, a configurable robotic device attached to the patient's anatomy, and torque/force sensors for real-time feedback, allowing for accurate and stable implant positioning without the need for extensive motion tracking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If bone-mounted robotic-assisted surgical system is used, then accuracy and precision of implant positioning is improved, but device complexity increases
Solution Approach 1:
The system divides the robotic surgical platform into modular components: a bone-mounted base unit with integrated sensors, a separate robotic arm, and independent control systems. This segmentation allows each module to be optimized independently while reducing overall system complexity and enabling flexible configuration for different surgical procedures.
Solution Approach 2:
The patent introduces intermediate registration guides and alignment fixtures that mediate between the bone-mounted robot and the implant. These intermediaries simplify the positioning process by providing mechanical reference frames that reduce the computational and operational complexity of achieving precise implant placement.
2Productivity
If bone-mounted robotic-assisted surgical system is used, then surgical efficiency and operative time are improved, but training requirements and learning curve increase
Solution Approach 1:
The robotic system incorporates automated functions including self-calibration routines, automatic tool path generation from preoperative plans, and real-time compensation for bone geometry variations. These self-service capabilities reduce the skill threshold for operation while maintaining high surgical efficiency.
Solution Approach 2:
The system integrates real-time feedback through torque sensors, force sensors, and position tracking that provide continuous information to the surgeon. This feedback mechanism simplifies operation by automatically adjusting parameters based on sensed conditions, reducing the learning curve while maintaining productivity.
3Reliability
If bone-mounted robotic device is used, then stability and resistance to external forces are improved, but device complexity and cost increase
Solution Approach 1:
The patent merges the robotic actuation system with the bone-mounted fixation structure into an integrated unit. The robotic base is directly attached to anatomical landmarks on the bone, combining positioning, fixation, and stabilization functions into a single component, thereby improving reliability without proportionally increasing complexity.
Solution Approach 2:
The robotic mounting interface incorporates spherical or curved contact surfaces that conform to the natural curvature of bone anatomy. This design provides inherent mechanical stability and resistance to external forces through geometric interlocking, reducing the need for complex locking mechanisms while enhancing reliability.
4Manufacturing precision
If configurable bone-mounted robotic device with sensors is used, then positioning accuracy is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The system uses adjustable and reconfigurable components with variable parameters including interchangeable end effectors, adjustable arm lengths, and programmable control parameters. This approach allows a single manufactured platform to achieve high positioning precision across multiple surgical scenarios without requiring custom manufacturing for each procedure.
Solution Approach 2:
The robotic system incorporates universal interfaces and multi-functional components that can perform multiple surgical tasks. The bone-mounted base, robotic arm, and tool interfaces are designed to accommodate various implants and surgical approaches, reducing manufacturing complexity while maintaining high positioning accuracy through standardized precision mechanisms.
Data Source
AI summary
Aspects of present disclosures involve systems, methods, and apparatus for a bone mounted robotic-assisted orthopedic surgery system for precise implant position, soft tissue balancing, and guidance of tools during a surgical procedure, particularly partial or total knee replacement procedure. The system features a bone-mounted robotic arm with an end-effector for precise positioning of a surgical tool, positioning of implants, and balancing of soft tissues. The reconfigurable robotic system requires minimal training by surgeons, is intuitive to use similar to conventional instrumented surgery, and has a small footprint. The system works with existing, conventional instruments, patient-specific instruments, sensor-assisted systems, and computer-assisted systems and does not require increased surgical time and safely provides the enhanced precision achievable by robotic-assisted systems and computer-assisted technologies.