Hermetic Sealing & Leak Testing
Laser-welded seals that protect implantable electronics
Ensuring Airtight Performance
Through Precision and Testing
At Cirtec, we offer hermetic welding and sealing services that ensure the protection and longevity of sensitive electronics and medical device components. Leveraging decades of engineering experience, we deliver airtight seals that prevent moisture and contamination from compromising the performance of implantable medical devices such as neurostimulators, BCI, cardiac rythmn management and drug delivery systems.
Our Hermetic Sealing and Leak Testing Capabilities
Hermetic welding is crucial for ensuring that medical devices remain protected from body fluids and environmental factors, ensuring long-term safety and performance. Cirtec utilizes laser welding for its precision and ability to minimize heat exposure, creating durable seals that maintain structural integrity.
- Spot Size Control - Achieve spot sizes as small as 0.0007” with automated circumferential welding, perfect for intricate medical assemblies
- Material Expertise - Our team works with a wide range of biocompatible materials, including Stainless Steel, Titanium, Nitinol, MP35N, and Platinum/Iridium alloys
- Minimized Heat Affected Zones (HAZ) - Our low-heat laser technology preserves material properties and prevents distortion of heat-sensitive components, such as O-rings and delicate electronics
- Fusion Welding and Compression Seals - We provide various sealing techniques, from fusion welding for creating strong, airtight seals to compressed gaskets for added protection in complex device architectures
- Long-Term Device Reliability - Hermetic seals protect critical components from moisture, gases, and contaminants, extending the lifespan of implantable devices
- Compatibility with Delicate Components - Our process enables welding near thermally sensitive components, such as glass-to-metal seals and electronic circuits, ensuring no heat damage occurs
- Versatile Applications - Our welding capabilities can be applied to a wide range of medical devices, from coil wire joints to battery enclosures and electrode assemblies
To validate the reliability of our hermetic seals, Cirtec provides comprehensive leak testing and optimization services. Using advanced techniques, we assess and optimize leak rates to confirm devices are functional over extended periods.
Key Leak Testing Capabilities:
- Leak Rate Sensitivity - Detect leak rates as low as 1E-10 atm-cc/sec using helium leak detection systems. This ensures airtight integrity, vital for long-term implantable devices
- Pressure and Vacuum Testing - We conduct thorough testing of seals under pressure and vacuum conditions to simulate real-world environments, verifying their durability and performance
- Weld Penetration Testing - Frequently requested alongside leak testing, this capability involves measuring and tracking weld depth using coupons or cross-sectioning devices. This process verifies that welds meet precise specifications and contributes to seal reliability
- Real-Time Data Collection - Our leak testing processes include real-time data monitoring, allowing for immediate feedback and adjustments to guarantee seal quality
- Custom Leak Rate Optimization - We tailor the leak testing process based on the specific material properties and design of the device, ensuring optimal sealing performance for even the most complex architectures
Why Choose Cirtecfor Hermetic Sealing?
- Proven expertise
- Comprehensive solutions
- Material flexibility
- Advanced testing techniques
With decades of proven expertise in hermetic welding and sealing, Cirtec is a trusted partner for creating medical devices that demand long-term reliability and regulatory compliance. We offer a comprehensive range of services including precision laser welding, helium leak testing, and weld validation to ensure airtight integrity from prototype to production.
Our deep material knowledge spans biocompatible metals such as titanium, stainless steel, and platinum alloys, enabling optimal sealing performance across a wide variety of implantable and electronic assemblies. Rigorous in-house testing methods, including helium leak detection, help verify that every seal meets the strictest standards for durability and environmental protection.
Protect sensitive
technology
with seals
that last .avif)
lifetime
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