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Lucas II

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This procedure describes the appropriate methods to apply, operate, and discontinue the LUCAS device in patients > 12 years of age requiring mechanical chest compression related to cardiac arrest.


1. The Lucas may be used in patients 12 years of age and older who have suffered cardiac arrest, where manual CPR would otherwise be used.


1. Patients 2. Patients who do not fit within the device.
a. Patients who are too large and with whom you cannot press the pressure pad down 2 inches.
b. Patients who are too small and with whom you cannot pull the pressure pad down to touch the sternum

Protocol for Placement

1. All therapies related to the management of cardiopulmonary arrest should be continued as currently defined
2. Initiate resuscitative measures following the Join ems protocols
a. Early defibrillation should be considered and provided as indicated based on clinical presentation.
b. Manual chest compressions should be initiated immediately while the LUCAS device is being placed on the patient.
c. Limit interruptions in chest compressions to 10 seconds or less.
d. Do not delay manual CPR for the LUCAS. Continue manual CPR until the device can be placed.
3. While resuscitative measures are initiated, the LUCAS device should be removed from its carrying device and placed on the patient in the following manner.

Backplate Placement
· The backplate should be centered on the nipple line and the top of the backplate should be located just below the patient’s armpits

B. In cases for which the patient is already on the stretcher, place the backplate underneath the thorax. This can be accomplished by log-rolling the patient or raising the torso (Placement should occur during a scheduled discontinuation of compressions [e.g., after five cycles of 30:2 or two minutes of uninterrupted compressions]).

Position the Compressor

· Turn the LUCAS Device on (the device will perform a 3 second self test).

· Remove the LUCAS device from its carrying case using the handles provided on each side.

· With the index finger of each hand, pull the trigger to ensure the device is set to engage the backplate. Once this is complete, you may remove your index finger from the trigger loop.

· Approach the patient from the side opposite the person performing manual chest compressions.

· Attach the claw hook to the backplate on the side of the patient opposite that where compressions are being provided.

· Place the LUCAS device across the patient, between the staff member’s arms who is performing manual CPR.

· At this point the staff member performing manual CPR stops and assists attaching the claw hook to the backplate on their side.

· Pull up once to make sure that the parts are securely attached.

Adjust the Height of the Compression Arm

· Use two fingers (V pattern) to make sure that the lower edge of the Suction Cup is immediately above the end of the sternum. If necessary, move the device by pulling the support legs to adjust the position

· Press the Adjust Mode Button on the control pad labeled #1 (This will allow you to easily adjust the height of the compression arm).

· To adjust the start position of the compression arm, manually push down the SUCTION CUP with two fingers onto the chest (without compressing the patient’s chest)

· Once the position of the compression arm is satisfactory, push the green PAUSE button labeled #2 (This will lock the arm in this position), then remove your fingers from the SUCTION CUP.
· If the position is incorrect, press the ADJUST MODE BUTTON and repeat the steps.

Start Compressions

· If the patient is not intubated and you will be providing compression to ventilation ratio of 30:2 push ACTIVE (30:2) button to start

· If the patient is intubated and you will be providing continuous compressions push ACTIVE (continuous) button

Patient Adjuncts
· Place the neck roll behind the patient’s head and attach the straps to the LUCAS device.
§ This will prevent the LUCAS from migrating toward the patient’s feet.
· Place the patients arms in the straps provided.

Using the LUCAS during the Resuscitation


· Defibrillation can and should be performed with the LUCAS device in place and in operation
· One may apply the defibrillation electrodes either before or after the LUCAS device has been put in position
o The defibrillation pads and wires should not be underneath the suction cup
o If the electrodes are already in an incorrect position when the LUCAS is placed, you must apply new electrodes
· Defibrillation should be performed according to the joint ems protocols and following the instructions of the defibrillator manufacturer.

· If the rhythm strip cannot be assessed during compressions, one may stop the compressions for analysis by pushing the PAUSE BUTTON (The duration of interruption of compressions should be kept as short as possible and should not be > 10 seconds. There is no need to interrupt chest compressions other than to analyze the rhythm).

· Once the rhythm is determined to require defibrillation, the appropriate ACTIVE BUTTON should be pushed to resume compressions while the defibrillator is charging and then the defibrillator should be discharged.

Pulse Checks/Return of Spontaneous Circulation (ROSC)

· Pulse checks should occur intermittently while compressions are occurring

· If the patient moves or is obviously responsive, the LUCAS Device should be paused and the patient evaluated.

· If there is a change in rhythm, but no obvious indication of responsiveness or ROSC, a pulse check while compressions are occurring should be undertaken. If the palpated pulse is asynchronous, one may consider pausing the LUCAS Device. If the pulse remains, reassess the patient. If the pulse disappears, one should immediately restart the LUCAS Device.

Disruption or Malfunction of Lucas Device

· If disruption or malfunction of the LUCAS device occurs, immediately revert to Manual CPR.

Device Management

Power Supply

· Battery Operation
o When fully charged, the Lithium Polymer battery should allow 45 minutes of uninterrupted operation
o There is an extra battery in the Lucas Device bag
o The battery is automatically charged when the device is plugged into a wall outlet and not in operation. The device should be stored with the Lucas Device plugged into a wall outlet (When detaching from the wall outlet, make sure that the cord is always with the LUCAS Device).
o When the orange Battery LED shows an intermittent light, one should replace the battery or connect to a wall outlet

· One may connect the LUCAS Device to wall power in all operational modes (One must always keep the battery installed in order for the LUCAS Device to remain operational).

Care of the LUCAS Device after use

· Remove the Suction cup and the Stabilization Strap (if used, remove the Patient Straps).
· Clean all surfaces and straps with a cloth and warm water with an appropriate cleaning agent
· Let the device and parts dry.
· Replace the used Battery with a fully-charged Battery.
· Remount (or replace) the Suction Cup and straps
· Repack the device into the carrying bag
· Make sure that the Charging Cord is plugged into the LUCAS Device.
· The LUCAS Device in the carrying bag should be charging on and secure while in rescue

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