Problems and Issues
Leading Medical Device manufacturer sells over 60 million disposable kits to be used with power injectors in hospitals across the work. These disposable kits are used to inject contrast / saline into patients for diagnostic imaging.
These disposable kits are assembled and packaged using highly automated syringe assembly lines. Despite robust quality control processes manufacturing defects may accidentally get introduced in products released into the field.
Key challenges included:
- Delayed detection of occasional manufacturing defects into the finished product
- Customer dissatisfaction and disruption in patient care due to failed product
- Manual data triage, increasing operational costs
- Lack of predictive insights into process variations
Our Solutions
With the use of Generative AI and prompt engineering, we performed the data analysis to identify the root cause in a time efficient and cost effective manner. The approach included:
1. Data Ingestion & Preprocessing
- Customer complaint data was pre-classified based on various allegations reported by the customers and segmented based on risk to the patients or users.
2. Trend Identification
- Using Generative AI and Prompt engineering, a time series analysis was completed on the unstructured data and a trend was identified indicating seasonality of the defects. With Generative AI, trend identification saw order of magnitude improvement from 24 hours to 20 minutes. This contributed to more appropriate usage of resources within the team.
3. Root Cause Identification
- Based on the defect identified and its seasonality, Generative AI and prompt engineering completed by Subject Matter Experts, most likely root causes was identified.
- These results indicated most likely root causes saved approximately $15K in outside material analysis. With the use of Generative in AI identifying preliminary root causes for defect has the potential to save thousands of dollars in exploratory testing for preliminary complaint sample investigations.
4. Manufacturing data analysis
- Manufacturing and assembly process parameters were reviewed based on the test results and identified material drying process as the process of interest.
- The material drying process was found to be operating outside of the recommended parameters and was adjusted as needed.
- Routine maintenance procedures were updated to ensure processes are closely monitored thereby minimizing chances of future defect.
Value Added to the Customer
Increased Customer Satisfaction:
- Customers impacted by the defect were appreciative of quick turnaround leading to higher Net Promoter Score (NPS)
Field defects caused by quality issues were identified and isolated with least amount of delay leading to quick root cause analysis and process corrections as needed.