In medical device manufacturing, cleanliness is more than a finishing step. Components used in medical implants, surgical instruments, catheter assemblies and other precision devices must meet demanding cleanliness requirements while maintaining tight tolerances and complex surface features.

Machining oils, cutting fluids, polishing compounds and fine particulates can remain on components after manufacturing. For parts with intricate geometries, blind holes, internal channels or porous surfaces, removing these contaminants can be especially challenging.

Precision vapor degreasing provides manufacturers with an effective way to clean complex components while delivering consistent, dry and repeatable results.

Cleaning Complex Medical Components

Medical components are often designed with features that make conventional cleaning difficult. Small passages, recessed areas, internal cavities and complex geometries can trap oils and particulates that may not be easily reached through traditional cleaning methods.

Vapor degreasing uses solvent vapor and controlled cleaning cycles to reach these difficult areas and remove manufacturing contaminants from the component.

Because the cleaning fluid can access areas that brushes, sprays and other mechanical cleaning methods may struggle to reach, vapor degreasing is particularly well suited for precision components with complex geometries.

Applications may include:

• Medical implants
• Surgical instruments
• Catheter components and sub-assemblies
• Precision-machined medical components
• Components with blind holes or internal passages
• Parts with intricate or porous surface geometries
• Clean, Dry Parts Without a Separate Drying Process

One of the primary differences between solvent vapor degreasing and aqueous cleaning is what happens after the cleaning cycle.

Aqueous processes introduce water to the component and typically require an additional drying stage. On complex parts, moisture can potentially remain in recessed areas, holes or internal passages if the drying process is not properly controlled.

With vapor degreasing, components emerge from the cleaning system clean and dry.

This can simplify downstream processing while helping manufacturers prepare components for subsequent operations such as inspection, cleanroom handling, packaging or sterilization.

• Removing Manufacturing Contaminants
• Precision medical components may encounter several contaminants throughout the manufacturing process, including:
• Machining and cutting fluids
• Lubricating oils
• Polishing compounds
• Fine particulates
• Process residues

The appropriate cleaning process depends on the component material, geometry, contaminant and required cleanliness level.

Guyson works with manufacturers to develop cleaning processes around the specific requirements of the application rather than applying a one-size-fits-all approach.

Closed-Loop Solvent Cleaning

Modern vapor degreasing systems have evolved significantly from older open-top solvent cleaning equipment.

Guyson precision cleaning systems incorporate features designed to control solvent use and reduce losses during operation. Closed-loop solvent retention, automated covers and controlled cleaning cycles help manufacturers maintain an efficient cleaning process while minimizing unnecessary solvent consumption.

Guyson systems can also be configured for use with modern solvent technologies, including PFAS-free and low-global-warming-potential (GWP) formulations.

This gives manufacturers greater flexibility when developing a cleaning process around performance, environmental and operational requirements.

Repeatability for Validated Manufacturing Processes

Consistency is especially important when cleaning is part of a controlled medical manufacturing process.

Manual handling can introduce variation between operators and between production batches. Automated component handling can help reduce that variability.

Guyson vapor degreasing systems can be paired with Autotrans automated handling systems, allowing components to follow a controlled cleaning sequence from load to load.

• Automation can provide consistent:
• Immersion and vapor exposure times
• Part positioning and movement
• Cleaning cycle parameters
• Transfer between cleaning stages
• Process timing

For manufacturers working within validated production environments, this level of repeatability can make it easier to document and maintain a consistent cleaning process.

The MicroSolve Precision Cleaning System

Guyson’s MicroSolve range of precision vapor degreasing systems is designed for demanding industrial cleaning applications where component cleanliness, process control and repeatability are critical.

MicroSolve systems can support co-solvent or mono-solvent cleaning processes and are compatible with modern solvent formulations, providing manufacturers with options when transitioning away from legacy cleaning chemistries.

The systems combine precision solvent cleaning technology with process control and automation options to create a cleaning solution tailored to the component and production requirement.

Finding the Right Cleaning Process

No two precision cleaning applications are exactly alike.

Part material, geometry, contaminant type, production volume, downstream processes and cleanliness requirements all influence the ideal cleaning method.

Before selecting equipment, manufacturers should evaluate the complete application and determine the combination of cleaning chemistry, process parameters, automation and equipment configuration needed to achieve consistent results.

Guyson’s application engineering team works with manufacturers to evaluate their parts and develop cleaning processes based on real production requirements.

Learn More About Guyson Precision Cleaning Systems

Looking for a more consistent cleaning process for medical or other precision-manufactured components?

Explore Guyson’s solvent cleaning and vapor degreasing systems or contact our applications team to discuss your specific cleaning requirements.

Learn more:
https://www.guyson.com/machines/wash/solvent-cleaning/