Catheter Shape Correction for Backup Force
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Solution Overview
Problem
In surgeries using guiding catheters, it is challenging for doctors, especially those with little experience, to select a suitable catheter that provides adequate backup force for introducing treatment devices through coronary arteries, as the catheter's effectiveness is influenced by the patient's vascular shape and the catheter's shape, leading to potential delays in surgery due to the need for catheter replacement.
Innovation Solution
An assistance system that acquires disease and blood vessel information for a scheduled surgery, compares it with past similar surgeries, and proposes a catheter shape based on the comparison, ensuring a suitable catheter is selected before the surgery by correcting the shape of the catheter used in past similar surgeries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a doctor selects a guiding catheter without detailed preoperative analysis, then the selection process is simple and quick, but the catheter may not provide adequate backup force for introducing treatment devices
Solution Approach 1:
The system performs preliminary analysis of blood vessel shapes and catheter configurations before the surgery occurs. By pre-comparing vascular anatomy data with historical catheter performance data, the system determines the optimal catheter shape in advance, ensuring adequate backup force is built into the catheter design before the procedure begins.
Solution Approach 2:
The system creates a virtual copy of the patient's blood vessel anatomy from imaging data and uses this digital model to simulate and evaluate different catheter shapes. This virtual replication allows extensive analysis of catheter-vessel interactions without physical trial-and-error, enabling reliable selection of the optimal catheter configuration.
2Reliability
If a doctor replaces the guiding catheter during surgery to ensure adequate backup force, then the catheter reliability is improved, but the surgery time is extended
Solution Approach 1:
The optimal catheter shape is determined before the surgery through preoperative analysis of the patient's vascular anatomy and comparison with historical data. This advance preparation eliminates the need for intraoperative catheter replacement, as the correct catheter is already selected and ready for use.
3Measurement precision
If detailed blood vessel information and historical data are analyzed to select the optimal catheter, then the catheter selection accuracy is improved, but the information processing complexity increases
Solution Approach 1:
The system creates a digital copy of the patient's blood vessel anatomy from imaging data and stores it for analysis. This virtual model allows precise measurement and comparison of vascular dimensions, angles, and configurations against historical catheter performance data, enabling accurate catheter selection through computational analysis rather than manual measurement.
Solution Approach 2:
The system uses historical data from past surgeries as feedback to improve future catheter selections. By comparing outcomes of previously used catheters with similar vascular anatomies, the system refines its selection algorithm and provides increasingly accurate recommendations, leveraging collective surgical experience to enhance individual case accuracy.
Data Source
AI summary
An assistance system includes a schedule information acquisition unit that acquires disease information on the surgery and blood vessel information relating to a shape of a portion capable of applying a backup force to the catheter by coming into contact with the catheter in a blood vessel of the patient, a past information acquisition unit that acquires a shape of a catheter used for a past similar surgery having the disease information coinciding with that of the surgery and having the blood vessel information similar to that of the surgery, and a proposal unit that corrects the shape of the catheter used for the past similar surgery, based on a comparison result obtained by comparing the blood vessel information on the surgery with the blood vessel information on the past similar surgery, and that proposes a catheter having the corrected shape, as the catheter to be used for the surgery.