Enhanced Additive Manufacturing Systems for Medical Devices

The inventive concept relates to advanced additive manufacturing systems for producing medical devices, such as catheters and implantable stimulation leads, with improved material flow, reduced warping, and tailored properties.

The original patent disclosed additive manufacturing systems for medical devices, but had limitations in terms of material flow, warping, and property control. The new inventive concept addresses these limitations by introducing adjustable temperature control, concurrent deposition of multiple filaments, and integrated steering capability.

The new system comprises a filament feeder with adjustable temperature control to facilitate improved material flow and reduced warping of the printed device. Additionally, the system enables concurrent deposition of multiple filaments with varying stiffness and color at varying blend ratios to produce a device with tailored flex modulus and visual characteristics. Furthermore, the system integrates a 3D printing module with pull wires, allowing for space-efficient construction and improved handling properties. The inventive concept also enables the production of catheter jackets with enhanced lubricity by depositing a lubricious material onto the outer surface during the 3D printing process.

The new inventive concept introduces novel features such as adjustable temperature control, concurrent deposition of multiple filaments, and integrated steering capability, which are not present in the original patent. These features provide a non-obvious solution to the limitations of the original patent.

Alternative embodiments of the inventive concept could include using different types of filaments, varying the temperature control, or integrating additional features such as sensors or actuators. Variations of the system could be used to produce other types of medical devices, such as implantable sensors or surgical instruments.

The inventive concept has significant commercial potential in the medical device industry, particularly in the areas of catheters, implantable stimulation leads, and other medical devices that require tailored properties and precise manufacturing. The target market includes medical device manufacturers, hospitals, and research institutions.