Inspecting Critical Components for Medical ApplicationsNDT for medical tube and wire 

As NDT techniques have expanded, so have the applications which now encompass many critical products that are being used where it is extremely difficult and expensive to replace or repair, or where failure can cause serious and life threatening consequences.

Wire and small diameter tubing used in medical applications such as stents, endoscopic tools, medical syringe needles and nitinol wires fall clearly into this category.

MAC has developed tests for these types of applications, using our MultiMac® eddy current equipment, which can detect surface defects in small diameter, very thin wall tubing, or wire.

MAC’s MultiMac® eddy current instrument used for these applications.

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Eddy Current Instrument for Testing Tube, Bar, & WireNon Destructive Testing Eddy Current 

  • Operates with encircling, sector, or rotary test sensors.
  • Up to eight test channels, null or absolute, can be used in any combination.
  • Detect short surface and some subsurface defects in tube, bar, and wire.
  • Inspect welded tube for short ID or OD defects in the weld zone.

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MAC’s® Eddy Current Testing (ECT) systems incorporate computer-based test instruments and test coils that use two ECT coilNon Destructive Testing for Medical Tube technologies: encircling and sector coils, and spinning or rotary probe coils.

  • Encircling and sector Eddy Current coil tests perform in this manner:
  • The product is passed through or adjacent to an electrical test coil, which
    has been excited by an alternating current.
  • This induces a flow of eddy currents around the test material or in the
    case of a sector coil, in the area under the coil.
  • Short, intermittent anomalies or flaws cause a variation in the eddy
    current pattern, which the instrument detects.

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