Philips HeartStart HS1 Automated External Defibrillator (AED)
The Philips HeartStart HS1 Automated External Defibrillator (AED) is designed to assist in the treatment of victims of suspected sudden cardiac arrest (SCA). It provides practical, real-time guidance through step-by-step voice commands and CPR guidance, helping the responder through the treatment process.The HS1 is designed to be easy to use, lightweight, rugged, and readily available for emergency situations. Its adaptive instructions and intelligent sensors allow the device to respond to the user’s actions and pace.

Defibrillation Specifications
Defibrillator Family: HS1
Order Number: M5066A
Adult Defibrillation: Peak current 32 A, with 150 J nominal into a 50-ohm load.
Pediatric Defibrillation: With optional Infant/Child SMART Pads Cartridge installed, peak current is 19 A, with 50 J nominal into a 50-ohm load.
Waveform: Truncated Exponential Biphasic, with waveform parameters adjusted according to patient impedance.
Shock-to-Shock Cycle Time: Typically less than 20 seconds between shocks in a series.
Controls and Indicators
The HS1 includes:
- Green SMART Pads Cartridge handle
- Green On/Off button
- Blue i-button
- Orange Shock button
- Ready light
- Caution light
- Shock button illumination when a shock is advised
Features
Step-by-Step Voice Guidance
The HS1 provides detailed voice messages that guide the responder through use of the defibrillator. Instructions can be repeated and rephrased when needed, with additional guidance to aid understanding.
Integrated SMART Pads
The integrated SMART Pads provide feedback to the AED, allowing it to adapt voice instructions according to the responder’s actions and pace. The pads sense when they are removed from the cartridge, peeled from their liners, and applied to the patient.
Adult and Pediatric Use
The HS1 can be used for:
- Adults and children over 25 kg (55 lb) or greater than 8 years old
- Infants and children under 25 kg (55 lb) or 0–8 years old, when the optional Infant/Child SMART Pads Cartridge is installed.
When the Infant/Child SMART Pads Cartridge is installed, the HS1 automatically adjusts its CPR instructions and shock energy.

SMART Analysis
The device uses SMART Analysis, a Philips technology that evaluates multiple characteristics of the patient’s heart rhythm to determine whether the rhythm is shockable.
SMART Biphasic Therapy
SMART Biphasic Impedance Compensation helps the HS1 deliver an appropriate amount of current and energy according to the patient’s impedance.
Quick Shock
The patented Quick Shock feature allows the HS1 to deliver a shock after the end of a CPR interval, typically within 8 seconds.
Automatic Self-Testing
The HS1 conducts automatic self-tests to check device readiness and functionality. Daily self-tests evaluate the internal circuitry, waveform delivery system, pads cartridge, and battery capacity.
Event Data Recording
The HS1 can store the first 15 minutes of ECG along with the entire incident’s events and analysis decisions. Event data can be transmitted wirelessly to a smartphone or PC using the IrDA protocol.









