Benchmarking
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Benchmarking
Silent Knight![](http://umaine.edu/met/wp-content/uploads/sites/108/2011/03/Silent-Knight-250x223.jpg)
- 20 cm long
- Weighs 2 kg
- A lever arm moves a compression link which forces a platen against an anvil.
- Uses pouches to eliminate cross-contamination.
- Safety issue: Finger could get caught and crushed in the anvil.
Powdercrush![](http://umaine.edu/met/wp-content/uploads/sites/108/2011/03/Powdercrush-250x153.jpg)
- 11” long, 3.75” high, 3.25” wide.
- Weighs 6lbs
- Uses pouches to eliminate cross-contamination.
- Two horizontal solenoids crush pill from opposite ends.
- Powered by a lithium polymer rechargeable battery. Battery takes two hours to recharge.
- Claims 4-5 seconds to crush a pill but much more time for fine powder.
- Safety issue with the open slot. A finger could get caught in the crusher.
First Crush![](http://umaine.edu/met/wp-content/uploads/sites/108/2011/03/First-Crush-190x250.jpg)
- 7” long, 8” high, 5.5” wide.
- Weighs 3.5 lbs
- AC Power supply. Uses NiMH AA battery pack that charges in 2 hours.
- Uses two plastic cups to eliminate cross-contamination.
Automated Pill Crusher![](http://umaine.edu/met/wp-content/uploads/sites/108/2011/03/Automated-Pill-Crusher-250x234.jpg)
- Uses two cups to eliminate cross-contamination
- Stationary, plugs into the wall.
- Two forces used to crush pill. Worm gear technology drives a lead screw from the top. A second force uses a spring to push upward.