Knee Functions
The Plié® 2.0 MPC Knee is a single axis prosthetic knee joint system providing microprocessor control of both the
swing and stance phases of gait. The microprocessor monitors an embedded load sensor and an angle sensor to
precisely control the transitions between the stance and swing phases of gait. Three manual settings allow the
hydraulic cylinder to provide adjustable resistance for
stance flexion
,
swing flexion
, and
swing extension
. The
hydraulic cylinder also provides non-adjustable
stance extension
resistance. The Plié Control software allows the
knee function to be optimized for each individuals user
ʼ
s gait, including the stumble recovery parameters. The
Gait Lab software provides the prosthetist with access to recorded data files of the microprocessor.
Technical Data
Plié® 2.0 MPC Knee Specifications
Microprocessor control cycle: 1000 Hz
Actuator speed: 10 milliseconds
Operating voltage: 3.6-4.2 VDC
Maximum user weight (moderate activity): 125 kg (276 lbs.)
Maximum user weight (high activity): 100 kg (220 lbs.)
Build clearance (pyramid top): 235mm (
Figure J)
Build clearance:
(Figure K)
Product weight (pyramid top): 1235 g (2.7 lbs.)
Product weight (threaded top): 1243 g (2.74 lbs.)
Maximum flexion angle (pyramid top): 125°
Maximum flexion angle (threaded top): 117°
Frame/cylinder construction: aluminum
Hydraulic cylinder default manual settings:
swing flexion
= 30 psi,
swing extension
= 0,
stance flexion
= 5
Patents: USPO #5,190,126, #6,978,872, and #7,655,050. Other patents pending.
Battery and Battery Charger Specifications
Battery type: lithium-ion
Battery voltage: 3.7 VDC
Battery capacity: 710 mAh
Battery life: 24 hours depending on use
Charger input voltage: 12 VDC
AC power adapter input voltage: 100-240 VAC, 50/60 Hz
Environmental Specifications
Storage temperature range: -20 °C to 80 °C (-4 °F to 176 °F)
Operating temperature range: -5 °C to 45 °C (23 °F to 113 °F)
Storage and operating relative humidity range: 0% to 100%, including condensation
Storage and operating atmospheric pressure range: 500 hPa to 1060 hPa (7.3 psi to 15.4 psi)
Storage
Store the Plié® 2.0 MPC Knee in a fully extended, unbent position. To conserve battery power during storage,
remove the battery from the knee.
Water Resistance
The Plié® 2.0 MPC Knee resists low-pressure water spray and occasional, brief submersion in water up to a
depth of 0.5 m (1.6 ft). If the knee is sprayed by or submerged in salt water or chlorinated water, immediately rinse
with fresh water and allow to dry. When changing the battery, the user should verify that the battery cap is
correctly seated. If water enters the battery compartment, failure of the battery and/or knee electronics may result.
Cleaning
For cleaning, the outside surfaces of the frame and hydraulic cylinder may be wiped down with isopropyl alcohol.
Plié® 2.0 MPC Knee Instructions for Use
(R-720-109 Rev. E), English
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