The HOTWIRE™ is a sterile, single-use guidewire device that delivers radiofrequency (RF) power in a monopolar mode to a distal electrode segment for the creation of an atrial septal defect in the heart. The HOTWIRE™ is intended to be used in conjunction with compatible previously cleared intravascular sheaths and/or dilators, and with the HOTWIRE™ System RF Generator.The HOTWIRE™ is comprised of a stainless steel core wire. The main body of the wire is jacketed with an insulating polymer that provides electrical insulation and facilitates smooth movement of the device through vascular dilators and/or sheaths. The floppy distal segment of the wire has an atraumatic tip with an uninsulated stainless-steel coil, which serves as an electrode, and provides fluoroscopic and/or echogenic visualization. A tungsten marker coil at the tip provides additional radiopacity. The stiff body of the HOTWIRE™ provides support for advancing wire-guided devices into the left atrium after the distal segment has traversed the septum. The proximal insulated portion of the wire has visual markers that align the electrode tip with third-party transseptal sheaths and/or dilators. A portion of the proximal wire is uninsulated for connection to the included Handpiece, which connects to the Hotwire System RF Generator.
A collection of nonimplantable, invasive devices intended to be used to puncture the interatrial septum during a transseptal catheterization procedure, and to create a conduit for the introduction of various cardiovascular catheters into the left side of the heart. It includes a vascular guide-catheter (which may be referred to as a steerable introducer) with a transseptal needle to create the puncture, and typically includes additional introduction assistive devices necessary for the procedure (e.g., stylet, guidewire, dilator). This is a single-use device.
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