GSTC is a manufacturer and exporter of ISO 13485:2016 and CE certified Karman Cannulas for Manual Vacuum Aspiration (MVA), uterine evacuation and Endometrial biopsy. Our cannulas come in sizes 4 mm to 12 mm with colour-coded hubs for quick identification and are trusted by hospitals, clinics and distributors in 60+ countries. OEM and private label manufacturing available.