Merit Pursue Microcatheter

FDA-Cleared Indications

• Accessing and navigating peripheral blood vessels during percutaneous vascular procedures.
• Delivering diagnostic or therapeutic agents to selected blood vessels.
• Facilitating the placement of other interventional devices when appropriate for the catheter configuration.

Clinical Applications

• Selective catheterization of small or tortuous peripheral vessels.
• Delivery of contrast or other diagnostic agents during angiographic procedures.
• Delivery of therapeutic agents during minimally invasive vascular treatment.
• Support for endovascular procedures in which another device must be advanced through or beyond the catheter.

Reported off-label uses

• Selective delivery of embolic materials in neurovascular or peripheral embolization procedures, when the specific configuration and labeling permit its use.
• Use as an adjunct catheter during complex venous interventions, including selected thrombectomy or venous stenting procedures.

Off-label use: these uses are reported in practice or the literature but are not part of the FDA-cleared indications. Physicians may use a cleared device off-label based on their medical judgment; the manufacturer may not promote off-label uses.

Practical Considerations

• Available sizes, lengths, distal-tip configurations, and compatibility vary by model; confirm the specific product information before use.
• The catheter is generally used with a compatible guidewire, guiding catheter, sheath, contrast injector, or therapeutic device.
• Operators should assess vessel size, tortuosity, spasm, dissection risk, and the catheter's rated pressure limits before advancement or injection.
• MRI safety depends on the exact model and labeling; verify the device-specific MRI conditions rather than assuming that all Pursue microcatheters are MRI safe.
• Contraindications and warnings include inability to safely access the target vessel, significant vessel disease or spasm, and incompatibility with the planned agent or device.