Medic kit 5 (blood pressure) including mabis branded "caliber" sphygmomanometer, threaded connectors, and reusable blood pressure is unusable due to air leaks at female threaded connector of sphygmomanometer and male threaded connectors of cuff tubing.This was detected during routine pre-use testing; there was no pt involvement with the device failure six kits were received, all were found to be defective.The "caliber" model sphygmomanometer was an unannounced product substitution in the medic kit 5 for the previous and functional "signature" model sphygmomanometer.The threaded screw connectors in the kits with "caliber" sphygmomanometer were also found to leak with both the "signature" and "caliber" branded sphygmomanometer.To a casual or normal observer, the failing threaded connectors appear the same as the functional connectors.Under close examination there are differences in the thread pitch and count of the male connector, and the knurled barrel has a coarser knurled barrel.The air leak that renders the "caliber" medic kit 5 unusable appears to be due to a mismatch between the threaded connectors.
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