A continuous passive motion machine, (CPM), is used postoperatively on total knee replacements and Anterior Cruciate Ligament (ACL) repair patients. By repeatedly flexing and extending the affected limb, the CPM lessens the adverse effects of immobilization and trauma on the joint.
A CPM is a prescribed device used under the supervision, or by the order of, a physician or other licensed healthcare provider.
The CPM requires minimal installation. No lubrication is necessary and the unit is not required to be sterile.
- Place the CPM unit on a solid, flat surface. Otherwise, the unit could tip causing the hip to be dislocated.
- Attach the Soft Goods to the carriage of the CPM by using the instructions provide with the Soft Goods.
- Plug the three-prong into a properly grounded wall outlet.
- Do not plug it in if switch is in the on position.
Setup operation of the CPM is quick and easy. However, the operation instructions must be followed in order to ensure proper anatomical alignment for use of continuous passive motion.
- When setting up a new patient, activate the reset to clear the unit. Measure the patient from hip joint (greater trochanter) to knee in centimeters. (Photo 1)
- Adjust the CPM femur component to match hip to knee measurement in centimeters. (Photo 2)
- Carefully place the CPM under the affected limb. Align the knee joint with the corresponding hinge point on unit. (Photo 3) Adjust the footplate using the footplate locking knobs so the patient’s foot rests comfortably and the patient kit supports the leg from knee to foot. (Photo 4)
- Secure the limb in the carriage frame by fastening the strap. (Photo 5). Failure to use strap correctly could change anatomical alignment resulting in tissue damage or joint injury.
- Do not place leg in carriage until power is on.
- If liquid or foreign object comes in contact with the CPM, turn power switch off and call First Health Medical Supply to check the unit.
- Obese patients can suffer chafing due to contact with carriage frame.
All user input and feedback is through the pendant. The following are descriptions of each button provided with OptiFlex:
Extension: View and modify the extension angle parameter. How to use: To view the extension angle, press and hold the EXTENSION button. To modify the current extension angle, press and hold the EXTENSION button while pressing either the UP or DOWN ARROW.
Flexion: View and modify the flexion angle parameter. How to Use: To view the flexion angle, press and hold the FLEXION button. To modify the current flexion angle, press and hold the FLEXION button while pressing either the UP or DOWN ARROW.
Speed: View and modify the speed parameter. How to Use: To view the speed, press and hold the SPEED button. To modify the current speed, press and hold the SPEED button while pressing either the UP or DOWN ARROW.
Extension/Flexion Delay: View and modify the delay time for the extension or flexion angles. Using EXTENSION/FLEXION DELAY will cause the carriage to stop at the extension and flexion angle for the time programmed. How to Use: To View the extension/flexion delay times, press and hold the EXTENSION/FLEXION DELAY button. You can set independent DELAY times for tension and flexion. If an extension and or flexion delay time is required, simply hold down the DELAY button and the EXTENSION or FLEXION button and use the UP or DOWN ARROWS to adjust the time.
Up Arrow: Increases treatment parameters in conjunction with other buttons. How to Use: Select the specific function to increase (SPEED, EXTENSION, FLEXION or EXTENSION/FLEXION DELAY). While pressing and holding the appropriate button, use the UP ARROW to increase the value of the specified function.
Down Arrow: Decreases treatment parameters in conjunction with other buttons. How to Use: Select the specific function to increase (SPEED, EXTENSION, FLEXION or EXTENSION/FLEXION DELAY). While pressing and holding the appropriate button, use the DOWN ARROW to decrease the value of the specified function. Reset:
Resets all parameter and patient counters to factory defaults. How to use: To reset patient compliance counters, press and hold lightly by inserting a paper clip and accept reset by pressing the MODE button. To display total unit run time and cycles, press and hold RESET for 3 seconds, the total unit time and cycles are temporarily displayed.
Emergency Stop/Start: Starts or stops the treatment. How to Use: Press the START/STOP button to begin or end the treatment. Caution: When unit is stopped and STOP/START button is pressed, the unit will immediately begin moving in the opposite direction of the last movement.
Comfort Zone: Temporarily decreases the flexion ROM when discomfort is experienced during treatment. How to Use: Press and the carriage will immediately reverse direction to move toward the extension angle. For the next five cycles, the carriage will operate in range five degrees less than the angle where the button was pressed. The Comfort Zone Flexion Angle is five degrees less than the angle where the button was pressed. Once five cycles are complete, the Comfort Zone Flexion Angle will be increased by one degree each consecutive cycle until it reaches the currently Programmed Flexion Angle. Note: If Comfort Zone is pressed within 30 Warning:
If pain is severe, do not use Comfort Zone. Stop treatment immediately. Failure to do so could result in tissue damage and could compromise surgical repair.
Mode: Used together with FAST BACK, OSCILLATION ZONE and PROGRRESSIVE ROM button to enable and disable the appropriate mode. All three modes or any combination may be used at once. How to Use: Press MODE button along with desired functions (FAST BACK, OSCILLATION ZONE and/or PROGRESSIVE ROM).
Fast Back: When the carriage reaches 15 degrees less than the Programmed Flexion Angle, it will begin to slow down. The deceleration rate will be half of the Programmed Speed when the carriage comes within 10 degrees of the flexion angle. Upon reaching the flexion angle, the carriage will reverse direction and resume the Programmed Speed as it moves towards the extension angle. How to Use: While pressing and holding the MODE button, press the FAST BACK button to enable the FAST BACK mode. Note: If both FAST BACK and OSCILLATION ZONE modes are enabled, the carriage will move at the slowest of 75 deg/min and half of the Programmed Speed while in the OSCILLATION ZONE ROM.
Oscillation Zone: When the carriage reaches the Programmed Flexion Angle, it will oscillate between the Programmed Flexion Angle and ten degrees less than the flexion angle three times. The ten-degree range of motion is known as the OSCILLATION ZONE ROM. While in the OSCILLATION ZONE ROM, the carriage will move a 75 deg/min or the Programmed Speed, whichever is slower. On the third oscillation cycle, the carriage will hold at the flexion angle for the Programmed EXTENSION/FLEXION Delay Time. How to Use: While pressing and holding the MODE button, press the OSCILLATION ZONE button to enable the OSCILLATION ZONE mode. Note: If both FAST BACK and OSCILLATION ZONE modes are enabled, the carriage will move at the slower of 75 deg/min and half of the programmed Speed while in the OSCILLATION ZONE ROM.
Progressive ROM: When PROGRESSIVE ROM is activated, the unit will automatically increase Programmed Flexion Angle by one degree every hour, up to a maximum of 5 degree per day. How to Use: While pressing and holding the MODE button, press the PROGRESSIVE ROM button to enable the PROGRESSIVE ROM mode. Set the desired Final Flexion Angle by pressing and holding the FLEXION Button while using UP and DOWN Arrows. Accept the Final Flexion Angle by pressing the MODE Button. Note: The unit must run for a full hour at the entire ROM before the flexion angle will be increased. The unit will not automatically increase more than five degrees in any 24-hour period. Decreasing the flexion angle will automatically deactivate this mode.
Other Pendant Functions
Independent Delay Time: You can set independent DELAY times for extension and flexion. If an extension and or flexion delay time is required, simply hold the DELAY button and the EXTENSION or FLEXION button and use the UP or DOWN ARROWS to adjust the time.
Selectable Scrolling: The scrolling feature is disabled at the factory. Should you desire to enable this feature, simply press and hold DELAY and MODE buttons. The display will scroll patient date for two cycles then return to displaying Current Carriage Angle.
Patient Lock-Out: The Patient Lock-Out feature prevents the patient from changing any parameter except COMFORT ZONE and START/STOP. To enable the Patient Lock-Out feature: Press and hold the UP ARROW and the MODE button for three seconds. A simple short beep will confirm that the feature has been activated. Repeating the above sequence will deactivate the feature.
Language Selection: To select display language, press and hold MODE and EXTENSION buttons simultaneously for 3 seconds. Use and arrows to select desired language and then press MODE to accept.
Pediatric Footplate Setup
- 1. Remove footplate by loosening footplate knob.
- 2. Tighten flexion adjustment knobs.
- 3. Loosen the tibial adjustment knobs.
- 4. Remove footplate support.
- 5. Rotate 180 degrees and replace.
- 6. Rotate footplate frame 180 degrees.
- 7. Replace footplate.
- 8. Tighten all adjusting knobs.
To clean continuous passive motion, turn unit off and unplug the power supply. Clean unit with a damp cloth. DO NOT use abrasive cleaners. A small amount of mild household detergent may be used, if desired.
Soft Goods may be laundered as required. However, the same Soft Goods should not be used from patient to patient. Cleaning of Soft Goods will not meet the necessary sanitation guidelines. Replace Soft Goods for each patient.
The following is a solutions guide to minor performance problems. Only qualified personnel should service all other equipment problems.
If you have received instructions from your physician or therapist that differ in any way from the above information, follow those instructions explicitly. If you experience any functional problems with this product, discontinue use and call your First Health Medical Supply office for assistance.
|Possible Cause || |
|Unit will not operate ||1. Unplugged at wall outlet. || |
1. Plug in and push ON/OFF
button to ON.
| ||2. ON/OFF button not turned ON ||2.Push ON/OFF button to ON. |
| ||3. Power loss. ||3. Once power returns, unit will remain stopped until start button is pressed. |
| ||4. Pendant unplugged. ||4. Plug pendant into unit. |
| ||5. Carriage travel blocked. ||5. Unplug unit and remove obstruction from path of carriage. |
| ||6. Flexion angle set equal to extension angle. ||6. Adjust extension angle smaller or flexion angle larger. |
|Treatment stopped in the middle of operation ||1. Motor over current ||1. Press START/STOP button. Carriage will move in opposite direction. |
| ||2. Comfort Zone too small. ||2. Comfort Zone button can only be used when ROM is greater than 30 degrees of Programmed Extension Angle. |