ottobock L5828 Dynion Lower Limb Prosthetics User Manual

: June 12, 2024
: ottobock

Table of Contents

L5828 Dynion Lower Limb Prosthetics
Product Information
Product Usage Instructions
3R85 Dynion Justification
Fluid Swing & Stance Control L5828
Adjustable, Stance Flexion
Knee Extension Assist
Stance Extension Dampening
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

L5828 Dynion Lower Limb Prosthetics

ottobock L5828 Dynion Lower Limb Prosthetics-
Product

Product Information

The 3R85 Dynion is a hydraulic default stance, mechanical knee joint developed by Ottobock. Unlike traditional default-stance mechanical knees, the Dynion uses two criteria for stance release, providing additional stability and security for patients during normal activities of daily living. It features a patented rotary hydraulic system to control both the swing and stance phase. The knee joint offers adjustable swing and stance resistance, allowing users to walk at various speeds and cadences on most terrains. Additionally, it includes adjustable stance flexion, knee extension assist, and a manual lock feature for safer standing and weight distribution.

Product Usage Instructions

Fluid Swing & Stance Control (L5828): The swing and stance resistance can be adjusted using the dials located under the Adjustment Panel. The swing phase is initiated when the stance disengagement criteria are met.
Adjustable Stance Flexion (L5845): This feature allows users to adjust the stance flexion according to their comfort and needs.
Knee Extension Assist (L5850): The knee extension assist provides assistance during the extension phase of the knee movement.
Manual Lock (L5925): To activate or deactivate the manual lock, use the button located on the side of the knee axis. Ensure that the knee is fully extended before activating or deactivating the manual lock. This feature helps in safer standing and equal weight distribution between the prosthetic and sound sides.
Stance Extension Dampening (L5848): This feature helps dampen the extension in the stance phase, providing additional stability during walking

For further information, contact Ottobock Reimbursement North America at P 800 328 4058 or email reimbursement911@ottobock.com.

3R85 Dynion Justification

The Dynion is the first Ottobock hydraulic default stance, mechanical knee joint. Traditional default-stance mechanical knees only have one criterion (knee hyperextension) to release the knee from stance to swing. This can result in situations where the knee loses stance stability unexpectedly for the patient. The Dynion uses two criteria for stance release, thus providing additional stability and security for patients during normal activities of daily living.

Dynion also provides knee stability (Resistance) in case of a stumble. If swing extension is interrupted, Dynion will switch back to its default stance function which could provide enough resistance to allow patients to regain their balance. The Dynion’s patented rotary hydraulic aggressively responds to varied terrains and obstacles, ensuring a stable response for the active transfemoral amputee. Designed for all above-the-knee levels of amputation at the K3 and low-K4 Medicare functional levels, the Dynion will provide exceptional performance across a variety of environments for the active and moderately active user.

Fluid Swing & Stance Control L5828

The Dynion is a monocentric knee joint with a patented rotary hydraulic to control the stance and swing phase. Swing and Stance resistance can be adjusted by dials located under the Adjustment Panel. The swing phase is initiated upon successfully meeting the stance disengagement criteria. Stance resistance is activated by foot load or interruption of swing. Users can walk at various speeds and cadences on most terrains.]

Adjustable, Stance Flexion

The Dynion’s stance flexion resistance can be adjusted via a dial. Stance Flexion is hydraulic resistance against the bending of the knee. This feature on the Dynion provides flexion (bending), mimicking the eccentric action of the quadriceps muscle. This controlled knee flexion occurs in the early stance phase during weight bearing, and also provides shock absorption and reduced impact, thus allowing the patient to securely walk up and down slopes and ramps, negotiate uneven/ challenging terrain, and some users may be able to descend stairs step overstep. Adjustments can be made to ensure the patient is provided high flexion resistance support when needed. High flexion resistance is necessary when the patient needs to sit down in a chair, walk down inclines, and stairs step-over-step.

Knee Extension Assist

The knee extension assist spring on the Dynion is used in promoting knee extension at the beginning of swing phase extension. This function allows the user to walk more efficiently at variable cadence since the spring extension assist mechanically limits the knee flexion at the end range and begins to bring the knee into an extension for a more symmetrical gait at faster walking speeds. It also ensures the knee comes to full extension for the beginning of the stance phase for a more secure loading condition.
Manual Lock
The manual locking feature on the Dynion allows the user to lock the knee in full extension for safer standing or more comfortable standing due to equal weight distribution on the prosthetic and sound sides. The manual lock can be activated and deactivated by using the button located on the side of the knee axis. The knee must be fully extended to activate and deactivate the manual lock.

Stance Extension Dampening

After the knee is flexed during initial contact in the early stance phase (stance flexion), the knee will extend again to advance the body forward through mid-stance. The Dynion knee will apply progressive hydraulic fluid resistance in order to provide a smooth extension of the knee. Without this function, the patient would feel a pronounced “snap back” due to terminal impact and would also present with an unnatural gait pattern. Energy is conserved by having this feature, as patients will not have to attempt to control this motion with their residual limb muscles.

L-Codes apply to U.S Reimbursement only.
The product/device “Supplier” (defined as an O&P practitioner, O&P patient care facility, or DME supplier) assumes full responsibility for the accurate billing of Ottobock products. It is the Supplier’s responsibility to determine medical necessity; ensure coverage criteria are met; and submit appropriate HCPCS codes, modifiers, and charges for services/products delivered. It is also recommended that the Supplier contact insurance payer(s) for coding and coverage guidance prior to submitting claims. Ottobock Coding Suggestions and Reimbursement Guides are based on reasonable judgment and are not recommended to replace the Supplier’s judgment. These recommendations may be subject to revision based on additional information or alpha-numeric system changes.
For Medicare, the Patient must be functional level K3 to use this code. Please verify coverage with your payer.