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COCOON Ventricular Septal Occluder

The Cocoon VSD Occluder is a percutaneous, transcatheter ventricular septal defect (VSD) closure device intended for the occlusion of hemodynamically significant ventricular septal defects.

Manufacturer documents

Manufacturer brochure (EN) →
Vascular Innovations Co., Ltd. (SMT group) · Rev2.0.0; 31August2016

COCOON Ventricular Septal Occluder; exact manufacturer original verified.

Manufacturer brochure (EN)

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The Cocoon VSD Occluder is a self expandable double disk device manufactured from braided Nitinol wires coated with Platinum atoms (up to 25μm) using nano fusion technology by plasma deposition.

Platinum coating makes Cocoon Occluders
- More Biocompatible
- Non allergic
- Non corrosive
- More Radiopaque for easy positioning in the defect
The design of the occluder is a soft central waist and two strong discs.The waist diameter is corresponding to the defect size. Compressing the soft central waist elongates the device longitudinally instead of radially and avoids stenting of the defect.

The discs are designed to withstand high left ventricular pressure.

The discs are filled with polypropylene fabric which aids in total occlusion of defect.
- Delivery Sheath with hemostasis valve adapter - used to deliver the device.
- Dilator – used to ease penetration of tissue
- Loader – used to introduce the Cocoon VSD 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 with cable sheath is packed seperately from the other accessories. The delivery cable cannot be used with other Cocoon occluders.
- The Cocoon VSD Occluder Accessory set is available in 6F, 7Fand 8F sizes.
- Transcatheter closure of patent ductus arteriosis with a self-expanding platinum-coated nitinol device
  
  Abstract
  
  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.
  
  The Journal of Invasive Cardiology (July 2009)
- “Platinum coated Cocoon Occluders prevents Nickel release”
  
  Key points
  - Very low Nickel release
  - No report of allergic reactions to Nickel
  - Zero incidence of Nickel allergic reactions and device-related erosion
- Early Experiences Using Cocoon Occluders for Closure of a Ventricular Septal Defect (VSD)
  
  J Cardiovasc Imaging. 2018 Sep;26(3):165-174

COCOON Case Report

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