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Reliability by Design: Engineering Medical Devices That Perform Every Time

Written by Rachel Kasson | Dec 16, 2025 9:13:08 PM

Why Reliability Defines Market Success

In healthcare, reliability is not optional — it’s essential. A medical device that fails even once can put patients at risk, disrupt clinical workflows, and damage brand reputation. For executives, ensuring reliability is more than an engineering requirement; it’s a business imperative. 

But building reliability into devices requires foresight. It’s not something that can be “tested in” at the end. Instead, it must be designed into the product from the very beginning, with careful attention to controls, materials, usability, and manufacturability. 

At Boston Engineering, our Design for Reliability (DfR) discipline, combined with our Control Systems, Embedded Systems, and Digital Solutions COEs, ensures devices are engineered to perform consistently — in every environment, every time. 

Read more below.

The focus and discipline of DFX is a powerful tool if used as part of a broader strategic approach to developing product/process differentiation, and a sustainable advantage against competition. Involve Design for X in Strategy. Once your team has determined the focus of your strategy, place the focus of design on developing competitive advantage. 

At Boston Engineering, DFX is a core part of creating values during our product development process. We focus on several key DFX areas that align with our expertise:

Learn more about Design for X (DFX) at Boston engineering: Boston Engineering Design for X

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Case Example 1: Imaging System Controller

A diagnostic company developing a complex imaging platform needed to improve system reliability under demanding clinical conditions. Early prototypes were inconsistent, raising concerns about accuracy and regulatory approval. 

Boston Engineering strengthened the design by: 

  • Creating embedded controllers to synchronize optics, sensors, and motion systems precisely. 
  • Optimizing firmware for real-time responsiveness and accuracy. 
  • Stress-testing performance across environmental variables like vibration and temperature. 
  • Embedding regulatory compliance into the documentation and validation process. 

Outcome: The imaging system achieved greater reliability and accuracy, giving clinicians confidence in results and positioning the platform for smoother regulatory approval. 

Case Example 2:  Infusion Pump Development

An innovator sought to design an infusion pump that delivered precise micro-volumes of medication over extended periods. Early designs lacked safeguards for accuracy and reliability in variable conditions. 

Boston Engineering ensured reliability by: 

  • Developing closed-loop control algorithms to continuously monitor and adjust dosing. 
  • Integrating redundant sensors and feedback systems to detect and correct errors. 
  • Designing hardware and firmware architectures optimized for predictable, long-term operation. 
  • Partnering with our DfX COE to prepare the design for manufacturability and serviceability. 

Outcome: The infusion pump achieved highly reliable dosing accuracy with built-in redundancies, earning stronger clinician trust and preparing for regulatory readiness. 

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Case Example 3: Ventilator Platform Development

During the development of a next-generation ventilator, reliability was paramount. The device had to perform consistently under intensive use, with no margin for error. 

Boston Engineering contributed by: 

  • Designing robust control systems capable of synchronizing with patient breathing patterns in real time. 
  • Integrating fault-tolerant systems with redundant safety layers. 
  • Using digital simulations to predict performance under diverse clinical scenarios. 
  • Applying rigorous verification planning to validate long-term durability and safety. 

Outcome: The ventilator platform was proven reliable across diverse use cases, delivering the confidence needed for both clinicians and regulators. 

The Common Thread: Reliability Built Into Every Stage

Across imaging platforms, infusion pumps, and ventilators, the key to success wasn’t last-minute testing — it was reliability engineered from the start. 

Boston Engineering ensures reliability by: 

  • Designing with DfR principles from concept through production. 
  • Integrating control systems and embedded intelligence to maintain accuracy and consistency. 
  • Simulating and stress-testing performance digitally to identify weaknesses early. 
  • Applying systems engineering discipline to ensure every subsystem contributes to overall reliability. 
  • Embedding risk management and compliance throughout development. 

This approach ensures devices perform not just once, but every time they’re needed. 

Reliability as a Strategic Advantage 

For executives, reliability is more than an engineering metric — it’s what drives clinician trust, regulatory approval, and long-term commercial success. A device that performs consistently becomes the standard of care; a device that fails risks irrelevance. 

Boston Engineering has demonstrated its ability to deliver reliability by design across complex systems like imaging platforms, infusion pumps, and ventilators. By combining technical expertise with systems thinking and project management discipline, we help innovators deliver devices that perform consistently and safely in the real world. 

When you partner with Boston Engineering, you gain a team committed to ensuring that your product not only works — but works every time, without fail. 

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Developing successful new products from scratch is challenging enough, but what about improving on existing designs? 

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 Understanding the Importance of a DFX approach in medical device design & development

Applying Design for X (DFX) methodologies upfront in medical device development optimizes the entire lifecycle by improving manufacturability, testability, reliability, usability, and other critical characteristics. This avoids costly redesigns later on, facilitates high-quality products that satisfy customers, reduces manufacturing and service costs, and supports flexibility through modularity and platforms. The holistic perspective of DFX drives efficient, cost-effective delivery of successful products that provide competitive advantage. Investing in DFX early pays dividends across the entire product lifespan.

Do you offer training on DFX for your medical engineering teams?

Education is critical to effectively implement DFX principles. We provide training tailored to your engineers’ roles and product lines. This includes overall DFX methodology, deep dives into specific disciplines like design for reliability or manufacturability, and practical application workshops. Our hands-on approach combines real-world examples and case studies with tutorials on leading DFX software tools. The goal is building organizational DFX expertise and establishing repeatable processes that endure beyond individual projects. Investing in DFX knowledge pays dividends across your entire product portfolio. 

Ready to Begin your next medical device DFX Project? 

Whether you’ve created a new technology, or have an innovative way to use an existing solution, Boston Engineering will turn your ideas into reality.  Our experts and Industry Partners will enhance your current team or manage the entire Product Development Process from Market Analysis to Production. Don't leave complex projects or high visibility product launches to chance. Know you're going to get the results you want by working with industry leaders in design, development, and deployment of innovative products driven by Novel Engineering. Contact Boston Engineering Today to get started.

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Impossible Challenge? Try Us. 

Selecting a partner to help you complete your design project is a valuable option to reduce project duration and save money.    

The Boston Engineering product development system encompasses DFX to ensure a smooth product launch and success in the marketplace.  Boston Engineering has DFX knowledge and experience to address aspects and values of a product such as manufacturability, test, reliability, safety, serviceability, cost, and compliance with industry standards and government regulations.

 

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