Epsila EV™ MRI SureScan™
defibrillation lead
for Defibrillator systems
The Medtronic Epsila EV MRI SureScan defibrillation lead is an MR-conditional lead approved for use when an extravascular implantable cardioverter defibrillator is indicated to treat tachycardia.
Overview
Extravascular quadripolar lead with shaped passive fixation, designed for sensing, cardioversion, defibrillation, and pacing therapies.
Product features
Epsila EV defibrillation lead key features
The epsilon-shaped distal section is intended to optimize the electrodes’ locations relative to the heart and the device.
- Defibrillation coils positioned toward the patient’s right side for a wider defibrillation vector between the coils and the device
- Pacing/sensing ring electrodes positioned toward the patient’s left side so they are closer to the heart
Curvature intended to help stabilize the lead in the mediastinal tissue
Four electrodes, consisting of two coils and two rings, to support three different pacing vector options and three sensing vector options
Isodiametric 8.7 Fr lead body and four conductor cables extending to the distal tip of the lead to provide high tensile strength for extractability
- Chronic lead extraction was prospectively studied in sheep. Chronic removal of 19 leads from the substernal space was successfully performed between one and three years postimplant using traction and simple tools.1
Product information
Specifications
| MR Conditional* |
|
|---|---|
| MRI SureScan™ |
1.5T |
| 3T |
|
| Physical characteristics |
|
|---|---|
| Type |
Quadripolar |
| Position |
Anterior mediastinum |
| Fixation |
Shaped passive fixation |
| Connector type |
EV4-LLHH |
| Length (distal end to proximal end) |
24.3 mm |
| Diameter |
3.2 mm |
| Materials |
|
| Conductors |
MP35N (silver cored) composite cables |
| Insulation |
Polyurethane, ETFE |
| Overlay |
Polyurethane |
| Ring electrodes (pace, sense) |
Titanium nitride coated platinum iridium |
| Coil electrodes (defibrillation) |
Platinum iridium, tantalum |
| Connector pin |
MP35N |
| Conductor resistances |
|
| Pacing (unipolar) |
1.5 Ω (52 cm, 63 cm) (max) |
| Defibrillation |
1.5 Ω (52 cm, 63 cm) (max) |
| Electrodes surface areas |
|
| Coil 1 and Coil 2 |
281 mm2 each |
| Ring 1 and Ring 2 |
23.8 mm2 each |
| Diameters |
|
| Lead body |
2.9 mm (8.7 Fr) |
| Tip |
3.0 mm |
| Lead introducer (recommend size) |
3.0 mm (9.0 Fr) |
| Respective electrodes distances |
|
|---|---|
| Coil 1 to Ring 1 |
4.3 mm |
| Ring 1 to Coil 2 |
4.3 mm |
| Coil 2 to Ring 2 |
5.0 mm |
| Pacing vectors |
|
|---|---|
| Cathode (-) |
Anode (+) |
| Ring 1 |
Ring 2 |
| Ring 1 |
Coil 2 |
| Coil 2 |
Coil 1 |
Ordering information
| Product |
Description |
Model number |
|---|---|---|
| Epsila EV™ MRI SureScan |
Extravascular quadripolar lead with shaped passive fixation |
EV2401 – 52 cm |
| EV2401 – 63 cm |
Training and education
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*
Refer to the MRI Technical manual for complete MR conditions for use.
Reference
1
Thompson AE, Marshall M, Lentz L, Mazzetti H. Three-Year Extraction Experience of a Novel Substernal Extravascular Defibrillation Lead in Sheep. Pacing Clin Electrophysiol. March 2022;45(3):314–322.