Dynamic Rocker Back

Dynamic Rocker Back (DRBi)

The Seating Dynamics Rocker Back interface is the original and most widely used aftermarket bolt on “dynamic back”.  In its ten years of production it has grown from a single wheelchair application to currently being available for approximately fifty different manual and power wheelchairs.  It is two self-contained suspension assemblies installed between each of the seat rails and the back canes of a wheelchair.  The design incorporates both impact and rebound control using urethane elastomers.  Each unit ships with a full set of four different elastomers to allow fine tuning to the individual users requirements.  Originally designed to prevent breakage of the seat frame or back canes, the DRBi has proven itself a capable therapeutic tool.

In the Cerebral Palsy and Developmentally Delayed fields, tone and behavioral issues frequently dictate the need for a Dynamic Rocker Back. Users who experience violent movements such as extensor tone or sensory seeking behavior may benefit from dynamic components. We have reports of a calming effect on tone and improvement in behavior.

“I loved that I could add it to her existing chair without changing the whole system. The DRBi is the best purchase I’ve ever made for Hannah.”

– Vanessa, Hannah’s Mom


Improving Function Through Movement

The benefits of a Dynamic Rocker Back are numerous.  Reports of improved posture in the torso and head, upper extremity relaxation, ability to effectively use communication devices, behavioral improvements, calming of tone and general improvement in quality of life for the users and caregivers are some of the common comments we hear. The financial benefit of improved wheelchair reliability and extended life should not be overlooked.  The “suspension” absorbs energy which would otherwise be transmitted into the wheelchair, thus minimizing or eliminating damage to the wheelchair.  This translates to more up-time, less down-time, fewer repairs and an extended wheelchair life.

Improvements to the Seating Dynamics – Dynamic Rocker Back Interface

The DRBi latch plate was recently changed from a black anodize finish to a new standard red anodize finish. This change was made in an effort to make the latch more conspicuous. To further aid the correct usage of the DRBi, additional instructions were added to the latch plate. These new instructions clearly indicate “Locked” and “Unlocked” positions.

When the latch plate is rotated to the up position the word “Locked” is clearly readable and the dynamic function is disabled. When rotated to the down position the word “Unlocked” is clearly readable and the dynamic function is enabled. The engraving gives a clear indication of the status of the latch plate, and the dynamic function.

It is our recommendation that the latch plate be in the UNLOCKED position at all times with two exceptions:

  • When the wheelchair is being transported in a vehicle the latch plate should be locked for safety concerns.
  • When the wheelchair is being pushed by an attendant on a surface other than smooth flooring, this reduces the risk of inducing spasms due to movement of the chair.

Seating Dynamics 7-8-1614798 Seating Dynamics 7-8-1614796

Contact us today to learn more, or find a provider.

Click here for Elastomer instructions