Description
TECHNICAL SPECIFICATIONS OF KARMAN CANNULA
| Specification | Details |
|---|---|
| Trademark | Heuer — A Subsidiary of GST Corporation Limited |
| Product Code | KC-Series — codes by size |
| Material | Flexible medical-grade PVC / plastic |
| Sizes Available | 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 12 mm |
| Total Length | 22.8 cm |
| Tip Design | Soft rounded atraumatic tip of tube |
| Visual Monitoring | Clear / transparent |
| Compatibility | Works with standard MVA syringes |
| Sterility | Single-use sterile packages |
| Use | Single use to prevent cross-contamination |
| Sterilisation Procedure | Ethylene Oxide (EO) |
| Certifications | ISO 13485:2016, ISO 9001:2015 , WHO-GMP |
| Country of Origin | India |
| Manufactured By | Heuer International — A Division of G.S.T. Corporation Limited, 142 A/52 NSEZ, Phase-2, Noida – 201305, Uttar Pradesh, India |
| Exported By | GST Corporation Ltd., B-13, Okhla Industrial Area, Phase 2, New Delhi – 110020, India |
Feature of Karman Cannula:
- Soft, flexible insertion — bendable shaft designed for gentle, low-trauma uterine entry
- Atraumatic rounded tip — reduces tissue trauma and patient discomfort during the procedure
- Clear tube — allows visual monitoring of aspirate during the procedure
- Color-coded hubs — fast, error-resistant size identification across the full 4mm–12mm range
- Universal compatibility — works with standard MVA syringes, including GSTC’s own MVA Kit
- Quality-managed manufacturing — produced under ISO 13485:2016 and ISO 9001:2015 certified systems, at a WHO-GMP certified facility
Karman Cannula Size & Color Code Chart
| Size | Code | Colour |
|---|---|---|
| 4 mm | KC4 | Yellow |
| 5 mm | KC5 | Green |
| 6 mm | KC6 | Blue |
| 7 mm | KC7 | Brown |
| 8 mm | KC8 | White |
| 9 mm | KC9 | Cherry Red |
| 10 mm | KC10 | Dark Green |
| 12 mm | KC12 | Dark Blue |
How to choose the right Karman cannula size
The size of the cannula is chosen by the clinician based on the age of the pregnancy, the size of the uterus and the degree of cervical dilation. As a general guide in MVA practice the cannula diameter in millimeters is close to the gestational age in weeks, to a maximum of 12 mm.
| Situations | Commonly Used Sizes |
|---|---|
| Very early pregnancy and endometrial sampling | 4–6 mm |
| Early pregnancy, middle of the first trimester | 6–9 mm |
| Late first trimester, up to 12 weeks | 9–12 mm |
Things to keep in mind when choosing and using a cannula:
- The cannula must be compatible with the syringe used. All GSTC karman cannula’s sizes are compatible with standard MVA syringes.
- Hubs are color coded so the healthcare professionals can quickly check the size.
- Cannulas are for single use. Check the pack is intact before opening. Do not re-use or re-sterilise.
- Inspect the tip and body before use. Follow your safety protocols.
Applications of Karman Cannula:
- Manual Vacuum Aspiration (MVA) for early pregnancy termination and uterine evacuation
- Endometrial biopsy, to obtain uterine tissue samples for diagnostic assessment
- Management of incomplete abortion and miscarriage, ensuring complete removal of retained tissue
- Treatment of missed or molar pregnancy, as part of a complete MVA procedure
CERTIFICATIONS & COMPLIANCE
- WHO-GMP — Certificate No. IN9690U-2023, issued 02 October 2026, valid through 01 October 2029.
- ISO 9001:2015 (Quality Management Systems) — Certificate No. IN240413013, certified 07 April 2026, valid until 15 April 2027
- ISO 13485:2016 (Medical Devices Quality Management) — Certificate No. IN240413007, certified 07 April 2026, valid until 14 April 2027
Technically reviewed by Regulatory Affairs, GST Corporation Limited
Why to Choose Us ?
Looking to Source Karman Cannula?
With 6 Decades of medical manufacturing excellence, GSTC stands as a trusted name among the top manufacturers & exporters of karman cannula & other medical equipments & devices — trusted by hospitals, clinics, and healthcare distributors in 60+ countries worldwide.
- India’s Trusted Leader: GSTC is India’s Trusted Manufacturers and Exporters of Medical Disposable & Gynecology, with over 6 Decades of experience, serving clients in 60+ countries across the globe.
- Unmatched Quality: Our Karman Cannula is manufactured using flexible medical-grade plastic & atraumatic tips to prioritize patient safety.
- OEM & Private Label Available: We offer custom branding and OEM manufacturing for Karman Cannulas to meet distributor and import partner requirements.
- Reliable Export Partner: We are leading Karman Cannula Manufacturer & exporter from India since last 6 decades, ensuring your orders are delivered on time.






