DDS OA Pro User manual
OA Pro ™
Bi-Compartmental OA Knee Decompression Brace
[Please read the manual completely, before attempting to use your brace]
USER MANUAL
Product Description & Overview
Product Description: Bi-Compartmental OA Knee Decompression Brace
Product Name: OA Pro™
Manufacturing Declaration No.: 18-931
Performance Usage: See User Manual
Precautions for Use: See User Manual
Product Weight: S 356g, M 378g, L 400g
Packaging Unit(s): 1 Set
Product Description: The OA Pro™ is a medical device that has been designed for the treatment
of osteoarthritis (OA). As a noninvasive (nonsurgical) treatment, this unloading knee brace
eases osteoarthritis pain and provides assistance for those with knee arthritis.
Safety & Precaution
In order to ensure safe & proper use of your bracing unit, please read the following steps
carefully.
a. Read your User Manual thoroughly before use of your unit. After reading, always keep
the manual in a safe place for easy follow-up and reference.
b. Always consult your physician before considering our brace for use, especially if you have
undergone any type of recent surgery or procedure.
c. Recommended not to wear braces on both knees at the same time, as this may lead to
disruption of your natural walk and create a possibility of personal injury.
d. Do not attempt to disassemble or modify your unit, as this may cause malfunction.
e. Contact your physician immediately if you feel any discomfort, pain, swelling and/or poor
blood circulation. This is especially important for patients with peripheral vascular
disease, neuropathy and/or sensitive skin.
f. Only use the OA Pro™ for its intended use and do not use in a manner that poses a risk of
damaging the unit, or causing potential injury.
Product Structure & Parts
Sizing Chart [Measure the circumference of the specified areas]
Size
Thigh [6” above the
center of the knee]
Center of the Knee
Calf [6” below the
center of the knee]
Small
15.5” – 18.5”
12.0” – 14.0”
12.0” – 14.0”
Medium
18.5” – 21.0”
14.0” – 15.0”
14.0” – 16.0”
Large
21.0” – 23.5”
15.0” – 17.0”
16.0” – 18.0”
X-Large
23.5” – 26.5”
17.0” – 19.0”
18.0” – 20.0”
Check Before Use
a. Please make sure that each part of the brace is intact and properly attached, according to
the Product Structure & Parts illustration.
b. If there is any foreign matter or substance on the inner hinge, it may interfere with
operation of your brace. Please make sure to clear this area and keep it clean during use.
c. Double check to make sure that your brace is in correct position and is not upside down, or
reversed, before application.
How to Wear Your Brace
a. Sit on the edge of a stable chair and stretch your leg to straighten your knee. Place the
brace on the knee. Center the hinge with the middle of the knee. It is very important that
the knee is accurately aligned with the hinge.
* After securing the lower straps, please be sure to bend the knee at a 90° angle
before securing the upper straps. Please refer to the illustration above, to activate
the Decompression function of your brace.
Angle Lock System
The Angle Lock System controls the angle and the range of motion with respect to knee extension and
knee flexion by combining various EXT and FLEX Angle Stoppers. Each Angle Stopper has been created to
limit range of motion in angle increments of 25 degrees.
Installation Method
a. Please consult your physician before attempting to adjust the amount of Extension and Flexion for
your brace.
b. Adjustments for straightening/extending your knee, will require “EXT” inserts, while controlling
the degree of bending the knee requires “FLEX” angle inserts.
c. Be sure to check that you have the correct angle stoppers, with the same degree “EXT” & “FLEX”
inserts for both hinges, before installing.
d. As shown in the illustration below, the corresponding Angle Stopper are located on the back of
both hinges. These can be easily accessed and changed using a screwdriver
e. The overall angle range must be equal to 100 , with a 50° max angle on both the top and bottom
of the brace. This can be achieved by individually combining the EXT and FLEX inserts on your
hinge, to ensure a 100° max range of motion, as seen in the illustration below.
EXT 0° EXT 25° EXT 50° EXT 75° EXT 100°
FLEX 100° FLEX 25° FLEX 50° FLEX 25° FLEX 0°
Maintenance / Storage Instruction
Cleaning Care
a. Please remove all sponge padding and Velcro straps from the frame before washing.
b. Once all padding and straps have been removed from the main frame of your brace,
gently clean the frame with a damp cloth. After cleaning, allow the frame to fully dry in
the shade before your next use.
c. We recommend washing the sponge padding by hand, using a neutral detergent, in
lukewarm water below 30°C. Please do not leave in water for an extended length of
time.
Storage Instruction
a. After cleaning your brace and all components, reassemble the unit for storage until your
next use. Make sure that all sponge padding and straps are completely dry before
reassembly.
b. Keep your unit in a well ventilated area, away from direct sunlight or heat, and free of
moisture.
c. Do not fold or bend any part of the brace unnecessarily, in order to avoid damage or
deforming of your brace.
d. If you will not be using your brace again for an extended period of time, store it inside a
container and keep in a cool, dry place.
Warranty Policy
[Limited - 1 Year]
DDS, Inc. prides itself on quality construction and manufacturing of our products. All products
undergo strict quality control and inspection processes to guarantee the best product for our
customers. However, that being said, we offer a 1 year warranty on our products in the case of
a defect in our workmanship or materials.
DDS, Inc. will repair or replace the unit free of charge for a period of 1 year, from original
purchase date. In order to qualify for this warranty, you must be sure to submit your completed
warranty card at time of purchase. We will also need proof of purchase from yourself or the
chosen supplier through whom you obtained our unit. You must contact our staff prior to
sending in your product, in order to obtain a RMA # (Return Merchant Authorization). Once we
receive your unit, we will conduct a quality inspection over the entire brace to determine the
cause of the malfunction. Should we be able to repair your brace, we will do so free of charge
and ship your unit back to you. In the case that the issue cannot be fixed by our experts, we will
send you a new replacement unit.
This warranty does not apply for any misuse and/or deliberate mishandling of our products.
Any implied warranty obligations or liabilities, including but not limited to the structural
integrity of the brace, proper function and mechanics and/or quality of construction will qualify
under the 1 year warranty. Return shipping fees and method chosen, will be the sole
responsibility of the customer. Shipping via a traceable method is highly recommended as DDS,
Inc. will not be responsible for any lost and/or unrecoverable merchandise via your chosen
courier.
your RMA # and with any inquiries you may have. More information can also be found at our
website at www.ddsmed.com.
WARRANTY CARD
FIRST NAME: ____________________________MI: __________LAST: ___________________________
ADDRESS 1: _____________________________________________________________________________
ADDRESS 2: _____________________________________________________________________________
CITY: ____________________________________ STATE: ____________ ZIP: ______________________
PHONE (DAY): _____________________________ (EVENING): ________________________________
EMAIL: _____________________________________
PRODUCT INFORMATION
DATE OF PURCHASE: ___________________________________
INVOICE/PURCHASE ORDER #: _______________________________________
HOW DID YOU BECOME AWARE OF DDS?
___________________________________________________________________________________________
___________________________________________________________________________________________
___________________________________________________________________________________________
Mail to Service Center:
DDS, INC.
100 Commerce Way, Suite 5
Hackensack, NJ 07601
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