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WOLVERINE™ Cutting Balloon Micro-Surgical Dilatation Catheter

Indications, Safety, and Warnings


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CAUTION: Federal law (USA) restricts this device to sale by or on the order of a physician. Rx only. Prior to use, please see the complete “Directions for Use” for more information on Indications, Contraindications, Warnings, Precautions, Adverse Events, and Operator’s Instructions.

WOLVERINE Coronary Cutting Balloon Microsurgical Dilatation Device

Intended Use/Indications for Use:

The WOLVERINE Cutting Balloon Device is indicated for dilatation of stenoses in coronary arteries for the purpose of improving myocardial perfusion in those circumstances where a high pressure balloon resistant lesion is encountered. In addition, the target lesion should possess the following characteristics:

  • Discrete (< 15 mm in length), or tubular (10 mm to 20 mm in length)
  • Reference vessel diameter (RVD) of 2.00 mm to 4.00 mm
  • Readily accessible to the device
  • Light to moderate tortuosity of proximal vessel segment
  • Nonangulated lesion segment (< 45°)
  • Smooth angiographic contour
  • Absence of angiographically visible thrombus and/or calcification

Contraindications:

The WOLVERINE Cutting Balloon Device is contraindicated for use in:

  • Delivery through the side cell of a previously placed stent as the deflated Cutting Balloon could become entangled in the stent.
  • Coronary artery spasm in the absence of a significant stenosis.

Warnings:

  • Exercise extreme care when treating a lesion distal to a stent. When treating lesions at a bifurcation, the device can be used prior to placing a stent, but should not be taken through the side cell of a stent to treat the side branch of a lesion at a bifurcation.
  • The atherotomy process, because of its mechanism of action, may pose a greater risk of perforation than that observed with conventional Percutaneous Transluminal Coronary Angioplasty (PTCA). To reduce the potential for vessel damage, the inflated diameter of the device should approximate a 1.1:1 ratio of the diameter of the vessel just proximal and distal to the stenosis.
  • The atherotomy process in patients who are not acceptable candidates for coronary artery bypass surgery requires careful consideration, including possible hemodynamic support during the atherotomy process.
  • Balloon pressure should not exceed the rated burst pressure.
  • The atherotomy process should only be performed at hospitals where emergency coronary artery bypass graft surgery can be quickly performed in the event of a potentially injurious or life-threatening complication.

Precautions:

  • The device should be used only by physicians trained in the performance of PTCA.
  • If difficulty is experienced during balloon inflation, do not continue; remove the device and do not attempt to use it. Infusion of any medium other than a flush of heparinized normal saline through the guidewire lumen may compromise device performance
  • Do not attempt to reposition a partially deployed balloon.
  • Do not use a guidewire having a diameter greater than 0.014 in (0.36 mm).

Potential Adverse Events

Potential adverse events include, but are not limited to, the following:

  • Abrupt closure
  • Acute myocardial infarction
  • Angina or unstable angina
  • Arrhythmias, including ventricular fibrillation
  • Arteriovenous fistula
  • Cardiac tamponade/pericardial effusion
  • Cardiogenic shock
  • Cerebrovascular accident/stroke
  • Coronary aneurysm
  • Coronary artery bypass graft surgery
  • Coronary artery spasm
  • Coronary vessel dissection, perforation, rupture, or injury, possibly requiring surgical repair or intervention
  • Death
  • Drug reactions, including allergic reaction to contrast medium
  • Embolism
  • Hemodynamic compromise
  • Hemorrhage or hematoma
  • Hypo/hypertension
  • Infection
  • Minor vessel trauma
  • Myocardial ischemia
  • Percutaneous re-intervention
  • Pseudoaneurysm (at vascular access site)
  • Pyrogenic reaction
  • Renal failure
  • Respiratory insufficiency
  • Restenosis of the dilated vessel
  • Side branch occlusion
  • Slow flow/no reflow
  • Thrombosis
  • Total occlusion of the coronary artery or bypass graft
  • Transient ischemic attack
  • Vasovagal reaction
  • Ventricular irritability/dysfunction
  • Vessel trauma requiring surgical repair or intervention
  • Volume overload

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