(b)(4).Per dhr the product hemolok ml clips 6/cart 84/box lot#: 73h1800872 was manufactured on 08/31/2018 a total of 10,878 pieces.Lot was released on 09/17/2018.Dhr investigation did not show issues related to complaint.The customer returned one cartridge 544230 hemolok ml clips 6/cart 84/box for investigation.A half of a loose clip was also returned.The cartridge and the clip were visually examined with and without magnification.Visual examination of the cartridge revealed that the cartridge was returned with no clips remaining in it.A broken piece of a clip was found in the bottom of the cartridge.The returned clip appears used as there is biological material present on the clip and the cartridge.The loose clip exhibited a staggered break where it was broken in the center of the outer hinge but also broken at the inner hinge on one side of the hinge span.The clip breaking at the hinge during loading was determined to be the result of inadequate cross-sectional area at the outer hinge.The root cause is due to inadequate specification of hinge thickness, which is a design related issue.A capa has been previously opened to further investigate issues related to clip breakages.Reference file: (b)(4) for investigation photos.The ifu for this product: l06110, was reviewed as a part of this complaint investigation.The ifu states, "always check the alignment of the applier jaws before use.When closed, jaw tips should be directly aligned and not offset.Alignment of the jaw is critical for safe application of the clip.If this is not done, patient injury may occur.Proper maintenance, care and cleaning are necessary to ensure proper functionality." the loose clip had a staggered break at the hinge which was determined to be the result of inadequate cross-sectional area at the outer hinge.The root cause is due to inadequate specification of hinge thickness, which is a design related issue.A capa has been previously opened to further investigate issues related to clip breakages.The reported complaint of "broken/detached parts - clip - hinge" was confirmed based upon the sample received.One cartridge and a half of a loose clip was returned.The cartridge was returned with no clips remaining in it.A broken piece of a clip was found in the bottom of the cartridge.The loose clip exhibited a staggered break, where it was broken in the center of the outer hinge but also broken at the inner hinge on one side of the hinge span.The clip breaking at the hinge during loading was determined to be the result of inadequate cross-sectional area at the outer hinge.The root cause is due to inadequate specification of hinge thickness, which is a design related issue.A capa has been previously opened to further investigate issues related to clip breakages.
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