Patient had negative pressure dressing on a leg wound that was caused by compartment syndrome.
The negative pressure dressing was applied in spring 2012.
Two days later the nurse went to remove the dressing and discovered that there was no suction, but the suction machine showed good pressure and was not alarming.
If there was no pressure, the machine should have indicated no pressure and an alarm should have been ringing.
======================manufacturer response for wound vac system, renasys ez plus negative pressure wound therapy system (per site reporter).
======================there were actually 5 device failures (all will be reported).
The first 4 were attributed to the canister, the last one was attributed to the foam packing material.