3R60 Knee

  • With the 3R60 Pro, the proximal pyramid adapter can be shifted in the anterior or posterior direction to correct or optimise prosthetic alignment.
  • Two specially configured hydraulic-spring combination units control the two modes.

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  • The joints in the 3R60 product family have five axes arranged in a circular form. The anterior axis chain is designed like a conventional four-axis joint, but the posterior linkage bar is interrupted by an additional pivot point (see red marking). As a result, this sophisticated design allows for two different modes of operation: swing phase mode plus stance phase flexion mode.
  • Expanding the 3R60 product family by adding the 3R60 Vacuum we are striving to retain the basic functionality and proven characteristics of the product group. The newly added joint features a vacuum pump integrated in the upper joint section. The intake valve is connected to the socket by flexible tubing. When the knee joint is flexed, the integrated pump generates negative pressure in the socket. Air and perspiration fluids are expelled through the discharge valve by means of an additional tube.

Winning combination to support the 3R60 Vacuum

In order to create the best possible fitting for your clients, we have taken to recommend prosthetic systems consisting of components known to compliment and reinforce each other. The right hand image demonstrates our winning combination to go with the 3R60 Vacuum knee joint.

Featuring an integrated pump the 3R60 Vacuum uses the knee flexion movement during swing phase to create negative pressure in the socket. In order to benefit from the advantages generated by suction pressure the knee joint works best with the ProSeal sealing system consisting of the ProSeal ring and a silicone liner, e.g. the ProSeal SIL 6Y81 (suitable for residual limbs with a minimun of 13 cm/5.12 in.) The system serves to maximise the vacuum surface allowing for an improved suspension. The non-stick surface on the liner’s outside allows for easy donning and doffing while the silky textured inside of the liner facilitates adhesion and comfort.

Adding the Trias lightweight prosthetic foot to the system users with a moderate level of activity will receive optimal support in everyday life. Made of carbon fibre the foot is known for its stability and ability to support a near to natural rollover. The foot is able to adapt to different gait speeds and to uneven terrain without compromising comfort. All in all the securely controlled movement patterns allow for a confident gait.

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Polycentric Knee (3R80 Knee Unit)
Referred to as “fourbar” knees. More complex in design with the knee is that the leg’s overall length shortens when a step is initiated, reducing the risk of stumbling. These knees are suitable for a wide range of amputees e.g. when they have difficulty in walking with other knees, have knee disarticulation or bilateral leg amputations, or have long residual limbs.

Modular Knee Joint, Servo-Pneumatic
The key element of the new 3R106 Pro is the servo-pneumatic control unit. Its powerful dual-chamber pneumatic unit with progressive damping properties has a flexion valve that the prosthetist sets for the user‘s normal walking speed. At faster walking speeds, the flexion resistance increases auto-adaptively, which prevents too much flexion of the knee joint.

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The pendulum movements in the swing phase are thus harmoniously controlled even at higher walking speeds.

The integrated, automatic quick venting of the flexion chamber ensures that harmonious extension movement is possible even at higher walking speeds so a greater range of walking speeds is supported. The max. body weight of 125kg /275lbs and the availability of three proximal connector versions allow a wide range of users to benefit from the advantages of the new 3R106 Pro.

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Total Knee
The industry standard in polycentric knees, the Total Knee, has been redesigned and given a whole new look. Now the knee is stronger and more durable. This is the go-to knee for superior shock absorption, increased comfort and a more natural gait.

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Mid-swing shortening offers increased toe clearance during swing to prevent hip-hiking and the 3-phase hydraulic swing control accommodates changes in walking speed. Plus, the adjustable stance flexion feature mimics the knee flexion that occurs during early stance, reducing shock and stress on the residual limb.

  • Designed for multi-speed ambulators.
  • Polycentric knee with geometric locking system.
  • Swing control adjustments through 3-phase (3-valve) hydraulic system.
  • Adjustable stance flexion.
  • Adjustable extension promoter.
  • Low build height, useful for long transfemoral limbs or knee disarticulation.

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Selecting the appropriate prosthetic knee unit for the transfemoral amputee (above knee) is important to achieve a successful outcome and should be based on the person’s activity level, lifestyle and general health. The latest advanced knee is not necessarily the best choice for everyone. Safety and stability for some amputees are more important than functional performance. More active amputees prefer a knee that will give them a higher level of function even if it requires greater control.