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Helix3D Hip Joint System

Thanks to its unique features, the Helix^3D offers the user noticeable advantages

Otto Bock’s Helix^3D 7E10 represents the first innovation in Otto Bock’s portfolio of hip joints in a quarter of a century. The product’s name derives from the unique three-dimensional movement available from the product. This feature mimics the human hip joint’s natural and symmetric gait pattern. Its polycentric design allows for leg length reduction during swing phase which reduces the amputee’s risk of falling and increases function.

Patented Multi-axis Joint Structure

Fig. 1 Compensation of pelvic rotation with Helix3D

Fig. 2

• Produces a three-dimensional hip movement to compensate for pelvic rotation and promotes a symmetrical and natural gait pattern (Figure 1).
  
• Allows for leg length reduction during the swing phase. This helps reduce the risk of falling and increases security.
  
• Improves sitting posture and reduces pelvic obliquity to a minimum.
  
• The 7E10’s large flexion angle makes it easier to accomplish activities of daily living, such as putting on shoes or getting into a car.

Spring and Hydraulics Combination

• It is noticeably easier to initiate swing phase with the hip joint’s integrated expansion springs. Energy stored during the stance phase is used during the swing phase initiation to compensate for the missing or deficient hip muscles and to reduce the amount of energy needed for walking (Figure 2).
  
• Controls the three-dimensional movement of the hip joint during walking that closely resembles the normal hip movement in the sound leg.
  
• Allows for a dampened, controlled heel strike in the stance phase with significantly reduced hyperlordosis as well as a natural hip joint extension. Therefore, the user can accomplish a more controlled, smooth roll-over on the prosthesis under full load.
  
• Allows for an individual stride length setting, which controls the pendulum motion in the swing phase.

Indication and Field of Application 

The Helix^3D Hip Joint System is suitable for hip disarticulation and hemipelvectomy patients. It offers patients maximum security and function for a wide range of everyday activities.

Recommended according to the Otto Bock MOBIS Mobility System for patients with Mobility Grades 2 and 3* (restricted outdoor walkers, unrestricted outdoor walkers). Maximum weight: 220 lbs/100 kg.

Helix^3D – Systematic Fitting

When choosing components for a complete prosthesis, the practitioner must choose a knee joint that provides 1) absolute stability and reliability at heel strike, 2) stance extension damping, and 3) swing flexion damping.

Otto Bock requires that the Helix^3D Hip Joint may only be combined with the C-Leg® and the prosthetic feet specified for use with the C-Leg® and other components specified in the Instructions for Use.

The Helix^3D Hip’s functions are specifically adapted to the characteristics of selected Otto Bock components. This gives the user the greatest amount of security and the advantages of each component.

 See the Helix^3D Hip Joint in action.

Helix^3D Product Specification Sheet

L-Code Options for Otto Bock Helix^3D Hip

*The Otto Bock MOBIS Mobility System is not intended to be used in the U.S.A. as a guide to obtaining reimbursement for prosthetic components.

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