The ŌNŌ Transcatheter Retrieval System
Engineered To Remove What Doesn’t Belong.
One Device. Endless possibilities.
The ŌNŌ is an FDA 510(k)-cleared, catheter-based retrieval system designed to remove intravascular foreign objects without open surgery.
The Essential Tool For Every Advanced Interventional Catherization Lab
500+Total Cases Performed
36Peer-Reviewed Publications
60+Podium Presentations
What ŌNŌ Does
Envelop. Align. Compress. Remove.
The ŌNŌ Retrieval Device is an enabling technology designed to allow clinicians to plan beyond what was previously in reach. The ŌNŌ device is designed to envelop, align, compress and remove material from the vascular system. It is compatible with commercially available vascular sheaths, endovascular snares and other graspers.
- Envelop – ŌNŌ receives the foreign object and then uniquely protects native structures during retrieval (especially important for SS implants or balloon fragment extractions that cannot be compressed)
- Align – ŌNŌ aligns the foreign object with the axial lumen of the retrieval sheath as the object enters the basket (especially important for non-compressible objects such as leadless pacemakers or TEER clips)
- Compress – ŌNŌ compresses Nitinol implants and other objects to allow for percutaneous extraction – longitudinal pull force outside the body is translated into radial compression of foreign bodies inside the vasculature (especially important for septal or LAA occlusion devices)
- Remove – The ŌNŌ removes devices and tissue masses alike percutaneously increasing the likelihood of avoiding highly invasive surgical options
How it Works
Removal of suboptimal devices and intravascular debris is increasingly necessary in modern cardiac catheterization and endovascular laboratories.
Enhance Your Ability To Avoid Open Surgery.
The ŌNŌ is purpose-built to facilitate safe, catheter-based retrieval across the expanding field of endovascular medicine.
Protect Your Cath Lab’s Efficiency and Case Throughput
The ŌNŌ Retrieval Device is an enabling technology designed to allow clinicians to plan beyond what was previously in reach. The ŌNŌ device is designed to receive, align, compress and remove material from the vascular system. It is compatible with commercially available vascular sheaths, endovascular snares and other graspers.
The 12F ŌNŌ retrieval device consists of a series of braided loops forming a basket fused to a 7.5F inner diameter catheter. A peel away sheath is preloaded over the ŌNŌ shaft which will assist in compression of the basket for introduction through the hemostasis valve of a 12F or larger vascular sheath.
Proof It Works
Clinical Use Cases
At a pace of almost one per month, ŌNŌ has accumulated a clinical record that is unprecedented for a product of its age — driven entirely by the physicians who use it. ŌNŌCOR did not author or fund these publications.
August 2025
Management of device embolisation during left atrial appendage closure
August 2025
Retrieval of an Embolized Left Atrial Appendage Occluder From the Aortic Arch Using a Transcatheter Retrieval Device
March 2023
The Simplified Extraction of Atrial Tumor With Targeted Loop Electricity (SEATTLE) Procedure
