Defibtech Lifeline ARM


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Lifeline ARM
Automated Chest Compression Device

Defibtech is proud to introduce the Lifeline ARM Automated Chest Compression (ACC) device for performing mechanical chest compressions when effective manual CPR is not possible. Effective cardiopulmonary resuscitation (CPR) requires a high level of excellence in order to have an impact on the survival rate of a cardiac arrest victim. This is very difficult to achieve manually when fatigue can occur in as little as 1-2 minutes while trying to maintain at least 2 inches/5 cm depth compressions at a minimum rate of 100 compressions per minute. In an emergency situation, the Lifeline ARM, when used as an adjunct to manual CPR, provides extended CPR with minimal interruptions when fatigue, insufficient personnel, or patient transport (e.g., ambulance, intra-hospital) may prohibit the delivery of effective/consistent compressions to the victim. Its award winning design provides portability, speedy deployment, and delivers precise CPR with unmatched operating times.

How to Save Lives

  • CPR has a measureable statistic called CCF which means “chest compression fraction.” It is the percentage of time in which chest compressions are done by rescuers during a cardiac arrest. CCF drops if there are interruptions or pauses in CPR, which may be due to other rescue related activities, even if they last only 2-3 seconds. Greater CCF can impact survival.  
  • CPR efficacy is attainable with Defibtech’s latest technical innovation, the Lifeline ARM, an automated solution for providing mechanical CPR when effective manual CPR is not possible. Time is of the essence in a rescue. The superior design of the Lifeline ARM results in easier assembly, fewer steps to beginning compressions, minimized interruptions, and robustness during operation.  With state of the art features, functions, and ease of use, the Lifeline ARM is an unsurpassed solution for automated CPR. Designed for the ruggedness and durability demands of the professional first responder, the Lifeline ARM delivers portability, quick deployment, and ensures high quality CPR. The result is a truly useful product to help save lives.

Simple to Use

  • Simplified Control Panel where just two steps are needed to initiate mechanical CPR: (1) Adjust the Compression Piston height relative to the patient’s chest for beginning compressions by using the Up / Down softkey buttons located on the Control Panel of the Compression Module, and (2) depending on the protocol that is in line with your designated emergency response procedures, choose between “Run Continuous,” which performs chest compressions only (no breathing) for continuous chest compressions, or “Run with Breaths,” which follows the compressions with breaths protocol by using programmed pauses for rescue breaths. Toggling between the two protocols during the rescue is allowed, to accommodate your local resuscitation protocol. And, at any time, the Pause button may be used to stop compressions when running, or resume compressions if stopped.

Long Life Rechargeable Battery

  • Advanced battery technology, with flexible power options:
    • Long runtime battery pack life (requires less power to accomplish compressions)
    • Fast battery pack recharge time
    • Long useful life battery pack (3 years or about 300 charge/discharge cycles)
    • Battery pack inserts in either orientation (with the contacts toward the unit)
    • Fast battery pack swapping because of battery pack eject release latches
    • External AC power adapter also recharges the battery pack, even during use

Designed for the Real World

  • The Lifeline ARM helps ensure the high quality and continuous CPR associated with better survival for cardiac arrest patients when effective manual CPR cannot be performed. When CPR is needed for long durations, while in a moving vehicle, during intra-hospital transport, or when rescue teams are shorthanded, the Lifeline ARM ensures the high-quality and continuous CPR associated with better survival for victims of sudden cardiac arrest (SCA).

Lightweight Rigid Frame

  • The Frame’s single piece design provides increased structural integrity during compressions by facilitating operation of the Compression Piston without undue deflection or distortion that could compromise consistent compression depth, an important element for effective CPR. Providing enhanced usability during deployment and repacking, the Frame effortlessly snaps into the Backboard, and releases just as easily.

Highly Visible & Portable

  • Packed in a red canvas carrying case designed for backpack portability. The structured bag contains a custom solid foam insert for holding the Lifeline ARM components and spare items, all of which make the device portable, easy to deploy and use, and pack up again quickly.

Ergonomic Design

  • The innovative and elegant design of the Lifeline ARM device affords portability, speedy deployment, and smooth, consistent operation.

Automated Chest Compression

  • Smooth operation results from an innovative custom Piston and brushless DC motor design housed within the Compression Module. During operation, a smart, software driven, motor control algorithm ensures compression depth and rate consistency by compensating for variability in chest resistance ensuring CPR efficacy.

Real-Time Protocol Selection

  • Select between chest compressions only (no breathing) or chest compressions with rescue breaths, for performance according to the compressions-with-breaths protocol.  When using the compressions-with-breaths protocol, a reminder chirp and flashing LED are used as notifications during the three compressions prior to the device pausing for the operator to give rescue breaths. If needed, the user may toggle between the two protocols during the rescue.

Ruggedness & Durability

  • Durable and impact resistant, the Lifeline ARM is manufactured to withstand small particulates and water spray, and meets military standards for shock and vibration testing.

Easy to Maintain & Service

  • A USB port on the Compression Module enhances the Lifeline ARM’s serviceability in the field, and makes it adaptable to future resuscitation requirements. A Service Indicator light on the Compression Module flashes to indicate when it is time for periodic servicing.

Easy to Transfer Data

  • The Lifeline ARM supports event capture and post event review with Defibtech ACC Support Software.

Includes: Compression Module, Frame, Backboard, Battery Pack, Backpack Carry Case, Patient Interface Pad (3 pack), Stabilization Strap, Power Module, Quick Start Guide, and User Manual. 1 year manufacturer warranty.

Contact EMP at 800.558.6270 for more details.

Per Federal Law, all of the items listed on this webpage are prescription drugs and/or devices. Before your account can receive these items, we must have a completed License Authorization Form (LAF) Form on file signed by your Medical Director. Orders from individuals will not be accepted.

Defibtech Lifeline ARM Tech Specs (view PDF)


  • Compression Modes
    • Continuous Compressions
    • Compressions with Breathing (30:2, 30 compressions with 3-second pause for  ventilation) factory default; future protocols via field updates
  • Compression Depth
    • 2.1 inches ±0.1 inches (5.3 cm ±0.3 cm) from start position (nominal patient)
  • Compression Frequency
    • 101 ±1 compressions per minute
  • Compression Duty Cycle
    • 50% ±5%

Battery Pack

  • Model
    • RBP-1000
  • Type
    • Lithium Ion (recyclable, rechargeable)
  • Operation Time
    • 1 hour (nominal patient) *
  • Charge Time *
    • Less than 3 hours in ACC
    • Less than 2 hours in external battery pack charging station
  • Useful Life
    • Recommended to replace battery pack every 3 years or if battery pack indicator displays a replace battery pack condition (~300 charge/ discharge cycles)
  • Operating Temperature
    • 0 to 40°C (32 to 104°F) ambient
  • Charging Temperature
    • 0 to 40º C (32 to 104º F) ambient
  • Storage Temperature
    • 0 to 40°C (32 to 104°F);
    • -20 to 60°C (-4 to 140°F) short-term <1 month
  • Sealing / Water Resistance
    • IEC 60529 class IP44


  • Operating / Maintenance Temperature
    • 0 to 40°C (32 to 104°F)
  • Standby / Storage / Transport Temperature
    • -20 to 70°C (-4 to 158°F)
  • Humidity
    • 5% – 95% (non-condensing)
  • Vibration
    • MIL-STD-810G 514.6 Category 20 (Ground)  
  • Sealing / Water Resistance
    • IEC60529 class IP43 (battery pack installed)
  • Electromagnetic Compatibility (Emissions & Immunity)
    • IEC 60601-1-2
  • Design Standards
    • Meets applicable requirements of:
      • IEC 60601-1
      • UL 60601-1
      • CAN/CSA C22.2 No.60601-1
      • IEC 60601-1-2
  • Device Classification
    • Internally powered Class II (with external power source)


  • Size (assembled)
    • 23.5" x 20.75" x 9"
  • Size (in carrying case)
    • 20" x 20" x 10"
  • Weight (with battery pack)
    • 15.9 lbs.
  • Adult Patient Ranges
    • Adult patients that fit into the ACC:
      • Chest width: 18" max.
      • Chest height: 6.5" to 11.8"
    • Use of the RMU-1000 is not restricted by patient weight.

AC Power Adapter

  • Model
    • RPM-1000
  • Rated Output
    • 24.0V ±5% @ 4.2A
  • Input Voltage
    • 85 to 264VAC (100 to 240VAC nominal)
  • Input Frequency
    • 47 to 63Hz
  • Input Current
    • < 2.3A rms
  • Operating Temperature
    • 0 to 40º C (32 to 104º F) full load
  • Storage Temperature
    • -40 to 85º C (-40 to 185º F)
  • Electromagnetic Compatibility (Emissions & Immunity)
    • IEC 60601-1-2

Get FREE ground shipping on all orders $175+*. Pay $10.50 for ground shipping on orders under $175. 

When shipping ground you can expect the following transit time (business days) to your location.

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Exceptions to this policy would include all orders with special shipping requests (i.e. Next Day Air, etc.), orders for dealers/resellers, orders under $175.00 and all orders outside the contiguous United States. In addition, there is a $10.50 Narcotic Handling Fee on all narcotic orders.  Also, there is a $13.95 Refrigeration Handling Fee on all refrigerated medication shipments due to special requirements.

*Exceptions apply. See details.

  • Defibtech Lifeline ARM Overview