For medical instrument manufacturers that need to apply polymer coatings to products such as defibrillators, pacemakers, catheters and surgical staples, a Despatch Industries forced convection oven with its tight temperature tolerances provides a superior coating drying process. By using the forced convection oven together with forced exhaust, manufacturers realize quicker cool-down times and shorter process cycles. The result is greater productivity with lower cost.
Catheters are widely used medical devices. There are several types including urinary catheters, peripherally inserted central catheters (PICC), implantable ports, and central venous catheters. Despatch ovens are used for curing and drying of coatings and linings that protect against urinary tract infection or increase lubricity to ease the discomfort of insertion. Catheters also require thermal curing for adhesive bonding of the ports and attachments. Annealing is used to provide variations in flexibility and hardness of the catheter tube to suit specific applications.
Optical labs find Despatch ovens well suited for curing optical coatings needed for scratch resistance and tinting. Ovens are available with pass-through doors for a seamless process flow through the work cell. For curing contact lenses a nitrogen atmosphere oven is used to prevent yellowing of the lenses.
Optical manufacturers depend on uniform internal temperatures, accurate ramp and soak time and precise temperature controls. Forced convection ovens from Despatch Industries provide high air flow and tight temperature uniformity (±1°C) as well as rapid cooling. Together, these key attributes provide consistent coating cures, reduced cycle times, and dramatically improved process yields—by as much as 28%
Despatch ovens are found in a wide variety of critical applications for the pharmaceutical industry. From R&D to production, Despatch delivers consistent, repeatable performance that adds up to shorter cycle times, higher productivity and lower operating costs. Pharmaceutical compounders use Despatch LCC cleanroom ovens to sterilize and depyrogenate implements, preparations and glassware. The recirculated air in this oven is 100% HEPA filtered for operation at ISO Class 5 (Class 100) or better within the oven chamber. The ovens can be stacked allowing independent batch processing in a small lab. These ovens can comply with USP Chapter <797> and cGMP standards. The exterior of the oven is 304 stainless steel, and the interior is type 304-2B stainless steel. All interior seams are continuously welded on the insulation side to protect the work chamber from contamination and the migration of insulation fibers.
Curing Medical Device Adhesives
Medical devices • Sterilizing medical devices and curing coatings • Curing surgical staples, catheters and medical device coatings Implants • Drying • Curing Parenteral drugs (Human/veterinarian) • Sterilizing and depyrogenating glassware • Decontaminating materials entering aseptic areas Ingestible drugs • Granulation drying prior to tablet and capsule manufacturing • Tablet coating drying and conditioning • CBD decarboxylation Ophthalmic • Curing optical and contact lens coatings Optical • Curing of anti-reflective coatings and hardness coatings
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