Skip to main content

Platinum coating technology

Nitinol wire used in the Cocoon Duct Occluder is coated with Platinum atoms (up to 25 microns) using nano fusion technology by plasma deposition

Raw nitinol
Platinum coating

Platinum coating makes the Cocoon Duct Occluder:

More radiopaque

Key highlights

  • Hat-shaped design ensures secured implantation at the aorta and minimizes risk of migration into pulmonary artery
  • Unique Platinum coating
  • Device is filled with polypropylene fabric to assist thrombogenicity
  • Extended retention portion provides proper positioning of the device in the ductus arteriosus
  • 100% occlusion rate at one-month follow-up1
  • Ability to recapture and redeploy*


  • Retention skirt diameter (Ø1)
  • Device diameter at descending aorta (Ø2)
  • Device diameter at pulmonary artery (Ø3)
  • Device length (L)

*Recapture and redeployment is possible only if delivery cable is securely connected to the disc.


Technical specifications

Product Code Retention skirt diameter (Ø1)
Device diameter at descending aorta (Ø2)
Device diameter at pulmonary artery (Ø3)
Device length (L)
CompatibleSheath Size (F)
COP0406 10 6 4 7 6-7
COP0608 12 8 6 7 6-7
COP0810 16 10 8 8 7-8
COP1012 18 12 10 8 7-8
COP1214 20 14 12 8 8-9
COP1416 22 16 14 8 8-9
COP1618 24 18 16 8 9
COP1820 26 20 18 8 9

Usable lengths of compatible accessories (cm)

Usable Length (cm)
  6F 7F 8F 9F
Sheath 83 83 83 83
Dilator 89 89 89 89
Loader 10 10 10 12

Delivery cable

Description Profile (inch) Length (cm) Catalog Number
5F Delivery Cable 0.043 125 CDC5F
6F Delivery Cable 0.077 117 CDC6F

Preclinical studies

Seven days after implantation in a pig PDA shows a well-encapsulated device

References: 1. Medicine. 2019 Mar;98(10).

Caution: This product is intended for use by or under the direction of a physician. Prior to use, refer to the “Instructions for use” supplied with these devices for indications, contraindications, side effects, suggested procedure warnings and precautions. As part of our continuous product development policy, we reserve the right to change product specifications without prior notification. Information contained herein is for distribution outside the U.S. and Japan only

Check the regulatory status of the device before distribution in areas where CE marking is not the regulation in force. Tests performed by and data on file at Sahajanand Medical Technologies Limited. Illustrations are artist’s representations only and should not be considered as engineering drawings or photographs. Photos on file at Sahajanand Medical Technologies Limited.

Cocoon product range is manufactured by Vascular Innovations Co., Ltd. Thailand, a SMT group company. Cocoon is a trademark of Sahajanand Medical Technologies Limited and its affiliates.

Disclaimer: © Sahajanand Medical Technologies Limited - All rights reserved. Specifications are subject to modification, revision and improvement.