QuickFlex™ μ LV Lead

This device is commercially available for use in the United States and select international markets.

The thinnest bi-polar lead for improved access to small target veins

QuickFlex Micro LV Lead

The QuickFlex μ LV Lead offers a superior option for implanters to attain LV lead placement in vessels that may have been unreachable in the past. The steerable tip maneuvers through small and acute venous anatomies and the proven S-curve shape is designed for superior lead stability. The QuickFlex μ LV Lead is part of a comprehensive and complementary set of leads and tools from St. Jude Medical designed to decrease implant times and increase predictability for enhanced control over LV access, delivery and fixation.

The QuickFlex μ LV Lead is a small-diameter, bipolar lead. It enhances options for more predictable procedures, regardless of the patient’s venous anatomy.

Low Profile and Flexible Lead Body

  • Small lead body: 4.3 F
  • Small lead tip: 4.0 F
  • Able to be delivered through a sub 5 F inner catheter
  • Tip-to-ring electrode spacing of 20 mm and reduced lengths of rigid portions (tip and ring) create superb flexibility
  • Steerable tip aids in navigation of acute bends and in branch vein subselection
  • Multiple LV pacing vector options with VectSelect™ programmable LV pulse configuration when paired with a Promote™ RF CRT-D or Promote Accel™ CRT-D  

S-Shaped for Stability

  • S-curve shape is designed to provide enhanced lead stability in a wide variety of vein sizes
  • S-curve fixation mechanism provides stability with a 1% dislodgement rate, the lowest in the industry1

Optim™ Lead Insulation

Optim insulation allows for an abrasion resistant, thin diameter lead. Developed specifically for cardiac lead use, Optim insulation blends the biostability and flexibility of high-performance silicone rubber with the strength of polyurethane.

1QuickSite™ Lead Family data represents data pooled on QuickSite™ Model 1056K and QuickSite™ Model 1056T leads from the RHYTHM ICD/QuickSite™ Model 1056K Lead Study, (162 patients) and the RHYTHM ICD/QuickSite™ Model 1056T Lead Study (144 patients) [QuickSite™ Models 1056K & 1056T Lead User’s Manual]. © 2005 St. Jude Medical.

QuickFlex μ Model 1258T

Parameter Description
Connector IS-1 Bipolar
Lead Length  75, 86, 92 cm 
Lead Body Size 4,3 F (1,42 mm/0.056”)
Tip Electrode Size 4,0 F (1,33 mm/0.052”)
LV Lead Delivery System Introducer Size Minimum 5 F ID
Minimum S-Curve Height 16 mm
Tip Electrode Pt/Ir, TiN coated, ring-shaped, two grooves
Steroid Dexamethasone sodium phosphate
Tip Electrode Surface Area 5,0 mm2
Ring Electrode Surface Area 7,4 mm2
Tip-to-Ring Electrode Spacing 20 mm
Lead Body Insulation Optim™ insulation
Lead Body Coating Fast-Pass™ coating

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