Terminal Devices
The Motion Control Hand
Sponsored by a grant
from the
National Inst.
of Health (NICHD)
Grant # 2R44HD36119-02
DOWNLOADS SECTION
The Flexion Wrist option
allows the wearer to place
hand in optimal position for performing tasks. Available
on the MC Hand, ProHand,
or ETD.
The ETD with ProHand
option has the controller
inside the TD. Shown also
with flexion wrist option.
The new touchpad design allows convenient placement wherever a "push" input is available.
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The Motion Control Hand:
The new Motion Control Hand operates much the same way as other electric hands, i.e., using myoelectric signals from the remnant limb, with a quick-disconnect wrist to allow for rapid changing of the terminal device. But there are many important improvements that will make a significant difference to the wearer.
Stronger Materials
The Motion Control Hand is made from new, high strength, lightweight composite materials which will make the Hand stronger and last longer.
New Motor
The Motion Control Hand uses a motor technology that is substantially more durable and rugged than existing motors in use. It can also be run at different voltages, so it may be used with a wide range of electric systems.
Battery Save
The Motion Control Hand has a battery save feature which shuts off power to the Hand once maximum force has been reached. This will create a significant savings in battery life that will be noticed by the wearer. (The hand wakes up again when the wearer reverses direction.)
Safety Release
This specially designed and patented feature is not found in any other electric hand. Using an easily actuated safety release, the wearer simply presses the on/off button more firmly to release the fingers in an emergency situation.
Wide Opening and High Pinch Force
The Motion Control Hand has a wider opening to allow the wearer to grip large objects and 22 pounds of pinch force to hold objects firmly in place.
FLEXION WRIST NOW AVAILABLE:
At this time, the Motion Control Hand is available with optional flexion wrist. A lever-lock on the back of the wrist allows the wearer to flex or extend the wrist to allow the hand to be in a more natural position for performing tasks. Note: The Flexion Wrist option does NOT add any length to the length of the Hand
ProHand:
The ProHand is the Motion Control Hand with the ProControl 2 controller built into the terminal device. The controller can also be installed into the ETD. This eliminates the need for placing the controller into the forearm, which makes for a neater, tidier prosthesis, AND also allows the MC Hand to be used with Otto Bock electrodes and batteries, so that wearers of existing Otto Bock prostheses can be upgraded to a new Motion Control Hand without having to entirely remake the prosthesis.
DOWNLOADS SECTION
New Input Options
For maximum adaptibility of the system to any patient's optional input sensor.
- Linear Potentiometer
- Force Sensor
- Touch Pads (new design)
- Other manufacturer's inputs (call for specifics)
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A short Hand or Wrist Disarticulation Hand
is available for long BE amputations. |
The Motion Control Hand Technical Specifications:
- Operating Temperature: 0o to 44o C / 32o to 110o F
- Transport and Storage Temperature: -18o to 60o C / 0o to 140o F
- Operating voltage range: 6-18 Vdc
- Pinch force: Will vary with amount of voltage applied.
As measured with 7.2 volts: 10 kilograms / 22 pounds
- Weight, standard version, with hand shell, no glove:
- 420 grams/ 14.8 oz. (7¼ hand)
- 433 grams/ 15.3 oz. (7¾ hand)
- 454 grams/ 16.0 oz. (8¼ hand)
- Length, standard version, with hand shell, no glove:
Measured from end of forearm to tip of thumb with hand fully closed:
- 13.5 cm/ 5.3 inches (7¼ hand)
- 13.7 cm/ 5.4 inches (7¾ hand)
- 13.7 cm/ 5.4 inches (8¼ hand)
Measured from end of forearm to top of fingers with hand fully opened:
- 16.7 cm/ 6.6 inches (7¼ hand)
- 16.7 cm/ 6.6 inches (7¾ hand)
- 17.0 cm/ 6.7 inches (8¼ hand)
With flexion wrist, add:
- 6.4 mm/ 0.250 inches (7¼ hand)
- 3.2 mm/ 0.125 inches (7¾ hand)
- 1.3 mm/ 0.050 inches (8¼ hand)
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