Correction: on initial mdr the patient event code of 4580 was an error.It should have been 4582 on the original mdr.The product was not returned.Product history records were reviewed and the documentation indicated the product met release criteria.A qualified cartridge, handpiece, and viscoelastic were indicated.The root cause could not be determined.The lens remains implanted.Photos and product were returned for the related file.Based on those results, the reported damage may be related to lens/plunger not being in an acceptable position for advancement.The damage observed to the tip of the returned used cartridge (large aneurysm and heavy stress) typically occurs if the lens is not positioned/folded correctly for advancement and/or if the handpiece plunger is not positioned correctly at the trailing optic edge.This can allow the lens to fold around the plunger tip making it too large to correctly advance through the narrow tip of the cartridge without causing damage.The placement of the photographed lens damage and the cartridge tip damage would support the plunger was not in a proper position for delivery.The handpiece ifu instructs: important: the plunger should make initial contact with the cartridge at the ramp.In the event the plunger does not contact the cartridge at the ramp, do not use the handpiece and contact company.Verify that the plunger tip is properly engaging the lens optic and that the lens moves forward at the same rate as the plunger while slowly advancing the plunger forward to avoid damaging the lens.When the threads on the knob make contact with the barrel, turn the knob clockwise approximately ½ turn to engage the threads and then stop.The iol will now be in the dwell position.Inspect to ensure the plunger is behind the optic.Failure to follow these steps may cause the lens to advance incorrectly causing delivery issues and/or damage.The monarch cartridge ifu instructs to completely fill the cartridge with ovd immediately prior to loading and delivery of the lens.Do not attempt to load the lens without adequate ovd in the device.Not adequately filling the device with viscoelastic will result in inadequate coverage of lens and the lens fold path with ovd, which may result in damage.Use the cartridge at operating room temperatures between 18° c (64° f) and 23° c (73° f).The manufacturer internal reference number is: (b)(4).
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