Indigo® System Catheters & Separators


The CAT family of catheters is the foundation of Penumbra’s Indigo® System. The Indigo System CAT3, CAT5, CAT6, CAT8, and CATD are engineered to be robust, trackable, atraumatic, and well suited for the peripheral anatomy. Available in a selection of sizes, the CAT family can provide access to distal peripheral vessels of the upper and lower extremities, including below the knee.

The Penumbra Indigo System Separator is intended for use with our Indigo System’s CAT family of catheters to enable the removal of a wide range of thrombus.

The Indigo Separator is advanced and retracted through the corresponding size Indigo catheter at the proximal margin of the primary occlusion to facilitate clearing of the thrombus from the catheter tip.

The Indigo System is 510(k) cleared for use in the vessels of both the peripheral arterial and venous systems, and for the treatment of pulmonary embolism.

As part of the Indigo Aspiration System, the Indigo CAT RX Aspiration Catheters and Indigo Separator 4 are indicated for the removal of fresh, soft emboli and thrombi from vessels in the coronary and peripheral vasculature.

Risk Information

Caution: Federal (USA) law restricts this device to sale by or on the order of a physician. Prior to use, please refer to the Instructions for Use for complete product indications, contraindications, warnings, precautions, potential adverse events, and detailed instructions for use.

Read More


  • Mechanical clot engagement with Separator
  • Large lumen continuous aspiration
  • Tip directionality for circumferential aspiration
  • Advanced tracking technology with multiple material transitions

CAT Sizes:

  • CAT8—8 F (2.67 mm)
    • Straight (85 cm)
    • Torq (85 cm)
    • XTorq (115 cm)
  • CATD—8 F (2.67 mm, 50 cm length)
  • CAT6—6 F (2 mm, 135 cm length)
  • CAT5—5 F (1.65 mm, 132 cm length)
  • CAT3—3 F (1.14 mm, 150 cm length)
  • CAT RX—5.3 F (1.75 mm, 140 cm length)

SEP Sizes:

  • SEP8 (150 cm)
  • SEP6 (175 cm)
  • SEP5 (175 cm)
  • SEP3 (190 cm)
  • SEPD (90 cm)
  • SEPC4 (200 cm)

Question About This Device?

Enter your email address and we will contact you.