Handheld Surgical Navigation Tool Positioning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Minimally invasive surgical procedures face challenges with positional accuracy due to limited visual control, leading to increased radiation exposure and longer surgery times with conventional fluoroscopic methods, and existing handheld surgical tools are difficult to operate effectively for precise positioning.
Innovation Solution
A handheld surgical navigation system with computer-aided navigation, incorporating a sensor unit, imaging device, alignment module, and user interface, allowing the tool to operate in two-dimensional and three-dimensional modes, with features like set keys for locking in angles and providing deviation signals, and intuitive visual, aural, and tactile feedback for precise positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional fluoroscopic control is used for minimally invasive surgery, then surgical procedures can be performed with reduced tissue damage, but radiation exposure to surgeon and patient increases and surgery time increases
Solution Approach 1:
The patent replaces conventional fluoroscopic imaging with optical sensors (cameras) to capture and display surgical field images. This substitution eliminates repeated X-ray exposure while maintaining real-time visual guidance capability, directly reducing radiation exposure without compromising surgical visibility or increasing procedure time
Solution Approach 2:
The optical sensor system provides continuous imaging capability without the repetitive cycling required by fluoroscopy. The system maintains constant visual feedback of the surgical field, eliminating the stop-start nature of conventional fluoroscopic exposure and thereby reducing total radiation dose while improving surgical efficiency
2Reliability
If C-arm device is used for fluoroscopic control, then imaging availability is improved, but repeated repositioning is required which increases radiation dose and reduces positional accuracy
Solution Approach 1:
The surgical tool integrates its own optical sensors and processing capabilities, making it self-sufficient for positioning and imaging guidance. The tool independently captures, processes, and displays images without requiring external C-arm repositioning, thereby maintaining consistent positional accuracy and eliminating repeated radiation exposure from device repositioning
3Adaptability or versatility
If biplanar fluoroscopy is used, then comprehensive imaging coverage is achieved, but repetitive back and forth imaging is required which increases radiation dose and surgery time
Solution Approach 1:
The patent transitions from two-dimensional sequential fluoroscopic imaging to three-dimensional optical imaging capability. The surgical tool captures images in multiple dimensions simultaneously, providing comprehensive spatial coverage without the repetitive switching between planes required by biplanar fluoroscopy, thereby reducing surgery time and radiation exposure
4Measurement precision
If handheld surgical tool with multiple displays is used, then positional information is provided, but difficulty in controlling and monitoring multiple displays increases operational complexity
Solution Approach 1:
The patent merges multiple display functions into a single integrated display interface. The surgical tool consolidates positional information, orientation data, and imaging feedback into one unified display, eliminating the need for the surgeon to manage multiple separate displays and reducing operational complexity while maintaining precise positioning capability
Solution Approach 2:
The system implements real-time feedback mechanisms that automatically adjust and update positional information on the display based on sensor data. The integrated display dynamically responds to tool movement and positioning, providing continuous guidance without requiring manual control of multiple independent display systems, thereby simplifying operation
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 system enhances surgical precision and reduces radiation exposure by providing easy-to-use, accurate navigation, allowing surgeons to maintain correct orientation in three-dimensional space with reduced mental workload and faster procedure times.
Implementation Method 1
The alignment device includes at least one sensor unit, comprising at least one sensor for sensing positional data of the imaging device
Implementation Method 2
The imaging device is a device capable of taking two-dimensional images of a patient
Data Source
AI summary
A surgical navigation system for providing computer-aided surgery. The surgical navigation system includes a handheld surgical tool with computer-aided navigation, an imaging device, an alignment module, and a user interface module. The handheld surgical tool includes at least one sensor for measuring a position of the tool in three dimensions, and at least one set key. A processor and at least one display device are associated with the handheld surgical tool and configured to display a target trajectory of the handheld surgical tool for the surgical procedure.