S-ICD™ System

Subcutaneous Implantable Defibrillator

The S-ICD System leaves the heart and vasculature untouched
S-ICD provides reliable defibrillation without touching the heart
Straightforward components in a sophisticated system.
The subcutaneous electrode is designed for durability

The S-ICD System is the world's first and only subcutaneous implantable defibrillator that provides protection from sudden cardiac arrest (SCA) while leaving the heart and vasculature untouched.


Protection without touching the heart

The S-ICD System is the world’s first and only subcutaneous implantable defibrillator that provides protection from sudden cardiac arrest (SCA) while leaving the heart and vasculature untouched. Like transvenous ICDs, the S-ICD System utilizes a pulse generator capable of delivering life-saving therapy. Unlike transvenous ICDs, the S-ICD System uses a subcutaneous electrode and analyzes the heart rhythm – rather than individual beats – to effectively sense, discriminate, and convert VT/VF. For years patients’ lives have been extended by implanting transvenous implantable defibrillators. Now the S-ICD System provides a new solution to protect patients from SCA, without touching the heart.

Protection without touching the heart

Effective defibrillation without transvenous leads

  • Effective detection and conversion of induced and spontaneous VT/VF episodes1,2
  • Low rates of significant clinical complications1
  • Effective discrimination of AF and SVT from VT/VF1,2,3
  • Rate of inappropriate therapy is consistent with transvenous ICDs1,2,3

Sophisticated technology

  • Identifies and classifies the heart rhythm, rather than individual beats
  • Revolutionary approach to sensing the subcutaneous signal
  • INSIGHT™ algorithm effectively discriminates between treatable and other high-rate supra-ventricular events
  • Designed to allow self-termination of non-sustained tachyarrhythmia

Durable subcutaneous electrode design

  • Subcutaneous placement avoids intra-cardiac biomechanical stresses
  • Multistrand cable-core design provides exceptional tensile strength
  • Durable polyurethane body is highly resistant to abrasion

New Solution for a broad range of patients at risk for SC

  • Effective for a majority of primary and secondary ICD candidates*
  • Alternative for TV-ICD replacements due to lead malfunction/infection
  • Ideal for primary electrical or structural heart disease
  • Appropriate for a broad range of body types

Product Details

SQ-RX Pulse Generator Specifications

Mechanical Specifications
Model Number1010
Size (H x W x D)78.2 x 65.5 x 15.7 mm
Mass145 g
Volume69.9 cc
LongevityNormal use*: 5 years
Electrode compatibilityRequires Q-TRAK subcutaneous electrode
Automatic Functions
Sensing configurationPrimary (ring to can), Secondary (tip to can), Alternate (tip to ring)
Optimal sensing configuration automatically selected during Auto
Setup (manual programming optional)
Gain selectionx1, x2
Optimal gain selection automatically selected during Auto Setup
(manual programming optional)
Rhythm discriminationINSIGHTᵀᴹ algorithm automatically activated when the Conditional Shock Zone is programmed
Shock polarityStandard (coil to can), reserve (can to coil)
Automatically selects and stores last successful shock polarity
Smart ChargeᵀᴹShock polarity alters automatically after failed shock
Electrode compabilityAutomatically extends initial detection time to allow self termination of non-sustained tachyarrhythmias
Internal warning systemAudible tone alerts patient to elective replacement indicator, electrode impedance out of range, prolonged charge times, failed device integrity check
Programmable Parameters
Shock Zone170 bpm - 250 bpm (steps of 10 bpm)
Conditional Shock ZoneOff, On 170 bpm - 240 bpm (minimum 10 bpm less than Shock Zone)
S-ICD System TherapyOff, On
Post-shock pacingOff, On (50 ppm, max 30 sec, demand-based)
Induction capability1-10 sec (50 Hz/200 mA)
Delivered Energy80J biphasic (only programmable during manual shock and induction test: 10J - 80J, steps of 5J)
Shocks per episodeMaximum of 5 shocks
Episode storageS-ECG storage for over 40 arrythmic events (treated & untreated)
Other dataElectrode impedance
System status (remaining battery life, patient alerts, etc.)
Date and time stamp

Q-Trak® Subcutaneous Electrode Specification

Model Number3400
Length45 cm
Distal tip size (Diameter)12 Fr / 4 mm
Coil size (Diameter)9 Fr / 3 mm
Electrode shaft size (Diameter)7 Fr / 2.33 mm
Sensing surface area


46 mm
36 mm²
Sensing location
Distal electrode tip
120 mm from tip
Defibrillation surface area750 mm²
Defibrillation location20 - 100 mm from tip
Connector PinMP35N
Suture SleeveSilicone

Ordering Information

1010Pulse Generator
3200Tablet Programmer
4760Suture Sleeve
*3010Electrode - Cameron Health model number*