Onyx is a non adhesive liquid embolic agent. It is made of EVOH (ethylene vinyl alcohol) copolymer and DMSO ( dimethyl sulphoxid) in which it is dissolved. This is suspended in tantalum powder to make it radio opaque. This is why it must be placed on a mixer prior to use to enable good mixing...

According to Covidien, the OneShot system is designed to treat patients with hypertension who are nonresponsive to traditional medical therapy. The system features an irrigated, radiofrequency-based balloon catheter used for targeted ablation of sympathetic nerves located within the adventitia...

The One-Step Centesis Catheter from Merit Medical is a sheathed needle device for drainage of body cavities. It has a luer lock or slip fit connection, four large holes for drainage, a smooth tapered tip, an echo-enhanced needle tip and a clear hub for flashback indication. It is available in 4F...

The OnControl Bone Access System from Vidacare is a device for bone marrow aspiration or bone biopsy. The battery powered driver is disposable but is said to last more than one hundred uses. The use of a powered driver is likely to allow more control than traditional manual access techniques....

The ON-Q PainBuster pump is a device for delivering local anaesthetic to the surgical site after surgery. The catheter (the ON-Q SilverSoaker Antimicrobial Catheter) has multiple holes along the infusion segment, and the elastomeric pump is non-electronic. The device has been used in a variety...