The Cocoon Duct Occluder is a percutaneous transcatheter occlusion device used in closure of patent ductus arteriosis with Platinum C0ating Technology (nitinol wire coated by with platinum atoms up to 25 μm).
Platinum coating makes Cocoon Occluders
More Radiopaque for easy positioning in the defect
Hat-shaped tapered design ensures secured implantation at aorta and minimizes risk of migration in pulmonary artery
Device is filled with polyester fabric to assist thrombogenicity and risk of total occlusion of defect.
Extended retention portion provide proper positioning of device in the ductus arteriosus
100% occlusion rate at 1 month follow-up
Ability to recapture and redeploy
Delivery Sheath with hemostasis valve adapter - used to deliver the device.
Dilator – used to ease penetration of tissue
Loader – used to introduce the Cocoon Duct Occluder into the delivery sheath.
Delivery cable – The device is screwed onto the distal tip of the delivery cable, which allows for placement and retrieval of the device. The delivery cable is packed separately from the other accessories. The 6 French (CDC6F) delivery cable can be used with Cocoon Septal and PFO occluders. A smaller delivery cable, 5 French is available for the Cocoon Duct occluders. This cable is normally used in infants.
The Cocoon Duct Occluder Accessory set is available in 6F, 7F, 8F and 9F sizes.
Transcatheter closure of patent ductus arteriosis with a self-expanding platinum-coated nitinol device
Aim: Assess the immediate and short-term results of transcatheter PDA closure with Cocoon Occluders.
Patient: 60 patients (13 males and 47 females; aged from 4 months to 65 years old) underwent catheter-based PDA closure
Conclusion: The devices were successfully deployed in all 60 patients. There were no serious procedural complications. Color Doppler demonstrated complete occlusion rate of 78.3%, 90.0% and 100% at 1 day, 1 month and 1 year after implantation, respectively. There was no statistical difference in serum nickel concentrations between pre- and post-implantation. Transcatheter PDA closure using a platinum-coated nitinol device can be performed safely and successfully. There was no evidence of nickel release or nickel reaction after device implantation. This device model may be an alternative for PDA closure, especially in patients with potential nickel allergy.