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Failure in the Field – Medical Instrument Carrier

Failure in the Field

This vessel is designed to hold and suspend implant screws in sterile liquid. The slots allow for various sizes to be carried using the same vessel. The vessel came to us because a screw was out of place inside the vessel prior to opening. Because of the occurrence the entire unit was quarantined for investigation.

The blue arrows point to a crack found in the seat of the carrier. The most probable explanation is that because some force is applied to hold the screw upright the seat cracked during loading. Then, during transit or handling the screw dislodged.

Versatility of CT Data

While this investigation was completed quickly, there is much more that can be learned from this dataset. For example, a common application for Industrial CT Scanning is seal and thread engagement analysis. This data can be exported to .STL for dimensional inspection, CAD comparison, and wall thickness calculations.

CAD comparison is useful to understand why the seat may have cracked. Perhaps the seat is accurate to CAD but the slots are out of position, causing stress fractures.