Optical Guidance for Acetabular Prosthesis Implantation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current instruments for implanting acetabular prostheses are complex and bulky, making it difficult to achieve precise orientation and positioning, especially due to limited access and visibility in acetabular operations, which can lead to implant instability and complications.
Innovation Solution
A set of instruments featuring a tool with an emitter, such as an optical collimator, that emits a control signal aligned with a reference signal to guide the correct orientation within the acetabular cavity, along with an acetabular reference guide and calibration guide, allowing for precise alignment and positioning without physical guides, enhancing surgical precision and simplicity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional physical guides and instruments are used for acetabular prosthesis implantation, then positioning and orientation can be achieved, but the device complexity and bulk increase, making precise alignment difficult due to limited access and visibility
Solution Approach 1:
The patent replaces complex mechanical physical guides with an optical guidance system using emitters that project light signals (lasers) to indicate the desired orientation and positioning of the acetabular prosthesis. The surgical tool includes an emitter that projects a first light signal, and a reference guide fixed to the bone site includes a second emitter that projects a reference light signal, eliminating the need for bulky mechanical alignment devices
Solution Approach 2:
The patent introduces light signals as an intermediary medium to transmit alignment information between the surgical tool and the surgeon. The emitters project visible light signals that serve as a visual mediator, allowing precise orientation guidance without requiring direct physical contact or complex mechanical interfaces between components
2Reliability
If bulky instruments are used to ensure stable positioning, then implant stability can be achieved, but the ease of operation decreases due to difficult access to the acetabular cavity
Solution Approach 1:
The patent replaces bulky mechanical positioning devices with a compact optical system that uses light signals for guidance. The emitters are integrated into the surgical tool and reference guide, providing stable positioning information through optical signals rather than requiring large physical structures that would obstruct access to the acetabular cavity
3Manufacturing precision
If physical guides are used for orientation, then positioning accuracy can be achieved, but the device complexity and bulk increase, reducing surgical simplicity
Solution Approach 1:
The patent substitutes complex physical guide structures with a simplified optical system. The emitters project light signals that directly indicate the correct orientation without requiring complex mechanical guide structures, reducing device complexity while maintaining positioning accuracy
Solution Approach 2:
The patent uses light signals as a copy or representation of the desired orientation rather than requiring physical copies or mechanical replicas of the target position. The optical signals provide a virtual model of the correct alignment, simplifying the guidance system while maintaining precision
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
The solution provides a more compact and user-friendly system for preparing and positioning acetabular prostheses, ensuring optimal load distribution and stability, reducing the risk of implant deterioration and biological complications by enabling precise alignment and calibration.
Implementation Method 1
a first emitter associated with the tool and configured to emit a control signal to be aligned with a reference signal for identifying a correct orientation of the tool relative to the acetabular cavity
Data Source
AI summary
A set of instruments is for implantation of an acetabular prosthesis. The set of instruments may include a tool configured to operate in an acetabular cavity of a patient, a first emitter associated with the tool and configured to emit a control signal to be aligned with a reference signal for identifying a correct orientation of the tool relative to the acetabular cavity, and an acetabular reference guide to be fixed to a bone site of the patient separate from the acetabular cavity. The set of instruments may include a second emitter associated with the acetabular reference guide and configured to emit the reference signal.