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OPTIMIZED PTFE
FILMCAST LINER TECHNOLOGY (O-PTFE)
Flexibility Meets Durability.

Our innovative O-PTFE Liner technology (O-PTFE) delivers high-performance solutions for neurovascular embolization, aspiration, and micro catheters. This technology combines the flexibility of filmcast with the durability and robustness of RAM extruded PTFE, making it an ideal choice for a wide range of medical applications.

Durability & abrasion resistance: Minimizes delivery forces while maintaining flexibility
High-pressure resistance: Accommodates the delivery of embolization agents
Ultra-thin walls: Maximizes flow rates and facilitates device interface

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Advanced Liner Technology for Complex Neuro and Peripheral Vascular Catheter Applications

Integer's O-PTFE liner technology is designed to address the specific needs for complex procedures. By integrating the flexibility of filmcast with the strength of RAM extruded PTFE, this technology ensures that medical devices can navigate intricate anatomical pathways with ease.

Balancing Flexibility with Durability for Optimal Performance

Our O-PTFE offers a unique combination of flexibility and durability, making it an ideal choice for various applications.

The attached tip, O-PTFE filmcast liner, coil, shield, outer jacket, and heat-shrink components work together to enhance the overall performance of the device. This advanced material technology ensures that the liner maintains its mechanical properties, providing both strength and adaptability. The innovative design allows for better maneuverability and reliability, making it suitable for a wide range of uses.

By integrating these features, the O-PTFE liner sets a new standard in material science and engineering design.

Durability & Lubricity

The durability and lubricity of the O-PTFE liner are critical for ensuring smooth and efficient performance in medical devices. These properties help minimize delivery forces while maintaining flexibility, which is essential for navigating complex anatomical pathways.

The enhanced durability of the O-PTFE liner means that it can withstand the rigors of repeated use without degrading in quality, providing reliability and consistency. The lubricity of the liner ensures that it can move smoothly within the body, reducing friction and making procedures less invasive.

O-PTFE Liner Durability & Lubricity Results

Up to 30% improvement in durability and lubricity compared to conventional filmcast
Durability and Lubricity comparable to extruded PTFE

Bench testing in an anatomical model measuring the retraction force of a stent retriever being pulled through the ID of a PTFE lined catheter

Flexibility

Flexibility is a key attribute as it allows for better maneuverability and adaptability within the body. The O-PTFE liner maintains its flexibility without compromising other performance characteristics.

The flexibility of the O-PTFE liner is crucial for procedures that require precise navigation through the body's complex structures. The liner's ability to maintain its flexibility while still providing other essential performance characteristics makes it a versatile and valuable component in medical devices.

O-PTFE Liner Flexibility Results

No trade-off in flexibility compared to conventional PTFE
Tensile testing was performed to generate stress/strain curves for legacy and O-PTFE to determine the impact on material stiffness

Tensile testing performed to generate stress/strain curves for legacy and O-PTFE to generate tensile modulus to determine impact on material stiffness.

Conventional PTFE vs. O-PTFE Burst Pressure

Burst pressure is an important measure of a liner's ability to withstand high internal pressures without failing. The O-PTFE liner has been optimized to provide superior burst pressure resistance, making it suitable for high-pressure applications such as aspiration and embolization catheters.

The optimization of burst pressure in the O-PTFE liner ensures that it can handle the high pressures often encountered in medical procedures without rupturing. This is particularly important in applications like aspiration and embolization, where maintaining the integrity of the liner is critical and provides an added layer of reliability.

Conventional PTFE vs O-PTFE Burst Pressure chart

O-PTFE Liner Burst Pressure Results

Up to 25% improvement over legacy PTFE
Optimized for aspiration and embolization catheters
Liner only was tested to burst using water to pressurize the ID

Liner only was tested to burst using water to pressurize the ID.

O-PTFE Liner Specifications

The O-PTFE liner is available in various specifications to meet the needs of different applications. These specifications include mandrel type, inside diameter (ID), ID tolerance, nominal wall thickness, wall tolerance, and cut length.

Mandrel	Inside Diameter (ID)	ID Tolerance	Nominal Wall Thickness	Wall Tolerance (average)	Cut Length
Annealed Stainless Steel / Silver Plated Copper	0.008" – 0.100"	± 0.0002" - ± 0.0005"	0.0004" – 0.003"	± 0.0001" - ± 0.0005"	85" Max./Spooled

Mandrel	Annealed Stainless Steel / Silver Plated Copper
Inside Diameter (ID)	0.008" – 0.100"
ID Tolerance	± 0.0002" - ± 0.0005"
Nominal Wall Thickness	0.0004" – 0.003"
Wall Tolerance (average)	± 0.0001" - ± 0.0005"
Cut Length	85" Max./Spooled

Integer's O-PTFE liner technology represents a significant advancement in medical device performance, offering enhanced durability, lubricity, flexibility, and burst pressure resistance. By incorporating these features, the O-PTFE liner ensures reliable and efficient operation in a variety of medical applications.

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