Otto Bock 480-520 User manual

CPM Guide
Objective: To allow technicians a quick reference sheet for CPM set-up instructions
to increase accuracy and improve patient care.
Step Action
1. Identify the proper placement of CPM location. It should be in the same
location that the patient would be using in their home. Discourage patients
from moving the CPM from one room to another, for this may cause the
alignment of the fitting to get moved.
2. Apply all of the padding to the machine as directed by manufacture.
3. Place the CPM next to the patient to estimate the length. It is better to
over-estimate the length and shorten it for the patient. Keep the foot
portion of the CPM loose to allow for movement when the patient gets
into the CPM.
4. Set the CPM to 40 – 45 degrees.
5. Place the patient’s leg into the machine and begin your adjustments
working down the leg fitting the foot last.
6. The knee should be aligned with the hinge of the machine fitting directly
with the knee. To check this step, use the machine to bend the knee.
Next fit the lower leg and then finally the foot. The foot plate should not
be pressed against the foot and the foot should be in a comfortable
postion.
7. The patient should be educated on knee placement and how it should be
checked each time they enter the CPM. They also need to be instructed
that the thigh strap and foot strap should be placed tightly around the leg.
8. Safety Education: The patient should have no sharp pain with the use of
the CPM. There may be a pull at the knee and that is normal. If they
increase the degree there will be higher initial pain when reaching the
higher range. There should be no bruising of the hip or calf, if this occurs
the padding is not tight enough or the machine is not in proper alignment.
9. CPM should be used under the direction of a physician or therapist. Any
questions about setting or duration should be directed to the treating
doctor or therapist.

480-520 Knee CPM Device Patient
Instructions for Use
©2008 Otto Bock HealthCare LP • 07101377.1B 7/08

SAFETY CONSIDERATIONS
Danger!
Keep hair, loose clothing, fingers, etc., away from moving components of
the device.
Danger!
Do not expose the device to water, including ice bags. Do not expose to
extreme temperatures.
Danger!
Turn the power off before unplugging.
Danger!
Do not use the device, power supply or controller if it appears damaged
or if there are exposed wires.
Danger!
Do not pour cleaning solution directly onto the device. This may allow
fluids to damage the device.
Note!
When the device is not in use, turn it off and unplug the power supply.
Note!
If you have pain, discomfort or treatment questions, contact
your physician.
For United States Only:
For Emergency Planning/Transportation in the United States, contact the Red
Cross at 800.234.5ARC (234.5272)
For Senior Services in the United States, contact Elder Care at 1.800.677.1116
For questions regarding claims, billing or reimbursement, please contact your
reimbursement specialist at 1.800.711.2205 8 AM to 5 PM (Mountain Time Zone,
no DST)
For questions about your CPM device, contact your local representative at 1.800.
RENT.CPM (800.736.8276)
For Customer Service, contact us at 1.800.225.1814 - 8 AM to 5 PM (Mountain
Time Zone, no DST)
* NOTE: To protect the patient, settings may be locked to allow only medical/clinical professionals to
make changes to the CPM device settings. Locking the settings will require a Special Key Sequence.
Please contact your Authorized Service Representative, Dealer, or Distributor for this or answers to
any other questions you may have.

Introduction
The 480 and 520 Knee CPM Devices offer continuous passive motion for
your knee after surgery. These knee CPM devices are operated with a Motion
Controller, which allows you to start, pause and stop the activity of the device. The
Motion Controller also allows you to make changes to certain functional settings
(including Warm-up, Flexion and Extension Range of Motion, Speed, and Pause
Time) depending on your Physician’s prescription.
Fig 1
CALF CRADLE SECTION
BOOT SOFT GOODS
AUXILIARY STRAP SOFT
GOODS
THIGH CRADLE SECTION
FOOT CRADLE
ANKLE ADJUSTMENT
KNOB
THIGH PIVOT BLOCK
SET/LOCK
SWITCH
THIGH CRADLE
ADJUSTMENT KNOBS
THIGH PIVOT LATCH
BASE
THIGH CRADLE
FOOT CRADLE
ADJUSTMENT KNOBS
MAIN DEVICE
MOTION
CONTROLLER
POWER SWITCH
FOOT ROT ATION
ADJUSTMENT KNOB
POWER SUPPL Y
FOOT PLA T E
Fig 2

Turning on the Device
Turn device on via the POWER switch located at the base of the device (Fig.1).
Note: Each time the device is powered up, the extension, flexion, speed and pause
settings will be the same as when the device was last run. The SET-Lock Switch
(next to the base power switch) should be in the SET position to make settings.
Start/Stop Control Button
You may stop and restart the CPM at any time by depressing the START/STOP
button on the Motion Controller. The device will proceed in the opposite direction
upon restarting.
Danger!
Adjust Motion Settings only under physician's or Therapist's orders.
Warm-Up Feature
Turn on the device from the POWER Switch located at the base of the device.
In the motion controller display window you will be prompted with a choice of
whether to initiate the WARM UP feature or not. You must choose Y (yes) or N
(no) to proceed.
Selecting the Warm Up Feature:
Choose Y (yes) by pressing the EXT button on the Motion Controller.
By-Passing the Warm Up Feature:
Choose N (no) by pressing the FLEX button on the Motion Controller.
De-selecting the Warm Up Feature:
To turn off the Warm Up feature, turn the device off then on again at the POWER
Switch. Select N (no) to exit the Warm Up feature prompt.
Setting Range of Motion (ROM) Parameters
The 480 achieves a maximum ROM of -5° extension to 110° flexion.
The 520 achieves a maximum ROM of -10° extension to 125° flexion.
The ROM settings are continuously displayed in the Motion Controller.
To set the ROM parameters, press and hold the EXT or the FLEX button while
simultaneously depressing the desired Up arrow or Down arrow buttons (Fig.2).
The Extension and Flexion angles will change slowly for the initial 5 degrees to
allow for precise adjustment); following this, the parameters will change rapidly to
allow for quicker adjustment.

Setting Speed
The device operates at speed cycles from 1 to 10 minutes per cycle.
To check the speed setting, depress and hold the SPEED button. To adjust
speed, depress and hold the SPEED button while simultaneously depressing
either the Up arrow (to increase speed) or Down arrow keys (to decrease speed).
Setting Pause Time
A pause time of between 1 and 30 seconds can be set, causing the device
to pause at the end of flexion and extension. These will be prescribed by
your physician.
To adjust or set the pause settings, hold the Extension Pause or Flexion Pause
button down while simultaneously depressing the desired up or down arrows.
Device Trouble Shooting
Problem: The Device is not working:
• Make sure the device is plugged into the outlet.
• If a light switch operates the outlet, make sure the switch is turned on.
Problem: Device stops at either top or bottom of the ROM.
• Pause button needs to be reset to zero. See "Setting Pause Time" section
above/ on previous page.
Problem: Controller displays an error code.
• Device needs to be reset. Turn the device off at the base power switch
and wait 30 seconds before turning back on.