Robotic Puncture Guidance With Needle Position Correction
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Solution Overview
Problem
Current master-slave real-time guided puncture solutions rely heavily on physician experience, leading to inaccurate punctures, prolonged surgery times, increased patient pain, and higher radiation doses due to multiple scans and adjustments.
Innovation Solution
A puncture assistance system and device that includes a processor to obtain and generate puncture guidance information based on scan images, a surgical robot with a slave hand to perform puncture operations, and a positioning correction module to improve accuracy by determining and verifying needle positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual blind puncture is used, then the surgery is simple to perform, but the puncture accuracy is low
Solution Approach 1:
A surgical robot acts as an intermediary between the physician's control and the actual puncture operation. The robot receives control signals from the physician outside the radiation zone and automatically executes precise puncture movements, combining ease of operation with high accuracy through automated positioning and execution
Solution Approach 2:
The manual mechanical puncture operation is replaced by an automated robotic system. The robotic arm with precise positioning capabilities substitutes the physician's manual hand movements, enabling accurate puncture execution while the physician operates remotely without direct mechanical intervention in the radiation zone
2Manufacturing precision
If real-time image-guided puncture with multiple scans is used, then the puncture accuracy is improved, but the radiation dose increases
Solution Approach 1:
The surgical path is planned and the puncture needle is positioned in advance using pre-operative CT images and simulation. The robot is programmed with the optimal puncture trajectory before the actual procedure, reducing the need for multiple corrective scans during the operation and thereby lowering the cumulative radiation dose
Solution Approach 2:
The system uses real-time imaging feedback to monitor needle position and provide guidance for adjustments. The feedback loop allows the robot to make minor corrections based on actual needle location versus planned trajectory, reducing the need for multiple full scans and minimizing radiation exposure while maintaining accuracy
3Object-affected harmful factors
If master-slave real-time guided puncture is used, then the physician is protected from radiation, but the surgery time is prolonged
Solution Approach 1:
The robotic system performs self-positioning and self-execution of puncture operations based on pre-programmed instructions. Once the surgical path is planned and the robot is positioned, it autonomously executes the puncture sequence without requiring continuous physician intervention or multiple setup adjustments, thereby reducing surgery time while maintaining physician protection
Solution Approach 2:
The robot is positioned and the surgical path is programmed in advance before the actual puncture execution. This preliminary setup allows the robot to perform the puncture operation efficiently in a single continuous motion, reducing the time required compared to multiple manual adjustments and scans
4Manufacturing precision
If multiple posture adjustments and scans are performed, then the puncture accuracy is improved, but the patient pain increases
Solution Approach 1:
The optimal puncture path and needle trajectory are calculated and programmed in advance using pre-operative imaging and simulation. The robot executes this pre-planned path in a single continuous motion, avoiding multiple needle insertions and repositioning operations that would cause repeated pain to the patient
Data Source
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AI summary
Provided is a puncture assistance system, a puncture assistance device, a puncture needle position correction system, and a surgical robot. The system includes a processor configured to: obtain a scan image of a target object; the scan image including at least one of a preoperative image, a first image from a first time period, and a second image from a second time period; the first time period is earlier than the second time period; generate puncture guidance information based on puncture status information and the scan image; guide a puncture operation based on the puncture guidance information; and display the puncture guidance information.