X4 CRT-D System

X4 CRT-D and ACUITYᵀᴹ X4 Quadripolar Pacing Leads

Effectively pace at the target location with 3 distal tip options

Three ACUITYTM X4 lead tip configurations are available to provide appropriate choice for a variety of coronary veins. 
Long Vein
Short Vein
Tortuous Vein

Long Vein

ACUITY™ X4 Spiral L is recommended when a target vein reaches the apical third-region of the heart, or mid-third of a severely dilated heart.
RAO venogram shows a lateral vein
RAO venogram shows a lateral vein
Long tip lead wedged in the lateral vein
Long tip lead wedged in the lateral vein
Patient from LILAC Acute Human Study implanted with a long tip lead.⁴

Short Vein

ACUITY™ X4 Spiral S is recommended when a target vein reaches only the mid-third of the heart.
RAO venogram shows a lateral vein
RAO venogram shows a lateral vein
Short tip lead wedged in the lateral vein
Short tip lead wedged in the lateral vein
Patient from LILAC Acute Human Study implanted with a short tip lead.⁴

Tortuous Vein

ACUITY™ X4 Spiral Straight is recommended when a target vein is short, narrow, or torturous.
RAO venogram shows a lateral vein
RAO venogram shows a lateral vein
Straight lead wedged in the lateral vein
Short tip lead wedged in the lateral vein
Example of a straight lead implant. This image is for demonstration purposes only – adaptation of a LILAC patient implanted with a straight tip lead.4

Optimized Contact with Myocardium

The ACUTY X4TM 3D spiral is designed to avoid floating lead and minimize pacing capture thresholds (PCT) in a non-apical location.
 
ACUITY X4 3D spiral side view
Side view
ACUITY X4 3D spiral cross section
Cross section

Reach Target Vessel

  • 2.6 F (0.86 mm)* tapered lead tip aids deliverability in small and tortuous branch vessels.
  • Straight segment on the distal end of the lead aids trackabilityx over the guide wire
Inner Catheter Shapes
Inner Catheter Shapes
  • Direct delivery in the targeted branch through the 7F ACUTIY™ PRO lead delivery system
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