MAUDE Adverse Event Report: CARL ZEISS MEDITEC CATARACT TECHNOLOGY INC. MICOR LENS FRAGMENTATION SYSTEM; PHACOFRAGMENTATION SYSTEM

Model Number FG-50621

Device Problem Adverse Event Without Identified Device or Use Problem (2993)

Patient Problems Intraocular Pressure Increased (1937); Loss of Vision (2139); Vitreous Loss (2142); Vitreous Hemorrhage (2143); Capsular Bag Tear (2639); Foreign Body In Patient (2687)

Event Date 05/30/2023

Event Type  Injury  

Manufacturer Narrative

The micor extractor was returned to the manufacturer and evaluated.The device was subjected to visual inspection, functional testing, then disassembled for internal inspection.There was no damage or device malfunction identified and the device met specifications and performed as intended.The published literature was reviewed for comparison of the functional test results for forced occlusion response; the investigation data shows the device operates within the same expected ranges for similar marketed phacoemulsification devices.The surgical video was provided to the manufacturer for review and the following summary represents the medical review by the company medical affairs director / ophthalmologist.A manual circular capsulorhexis was created and the surgeon made 3 miloop cuts to separate the cataract into 6 sections and the miloop device was removed from the eye.No difficulty or problems with the technique was noted and the miloop is not considered a contributing factor for this event.Micor extraction (aspiration) was initiated and within 10 seconds, a posterior capsular tear appeared to occur at the 11 o'clock position.The surgeon appeared to have the micor extractor positioned at the center cortex cutting into a section of posterior sclerotic nucleus when the cutter reached the posterior and a surge event occurred.Approximately 15 seconds later, a lens fragment dropped into the vitreous cavity.The remainder of the surgery (cataract removal, anterior vitrectomy, iol implantation) was uneventful.Posterior capsular bag tears are an inherent risk of cataract surgery.The micor extractor device history records were reviewed for this manufacturing lot and there were no discrepancies or unusual findings that relate to the reported event.Based on the information reviewed, there is no evidence to indicate the presence of a potential quality issue with respect to manufacturing, design, or labeling.The device labeling identifies capsular rupture as an inherent safety risk.Manufacturer's reference #: (b)(4).

Event Description

A 66-year-old male patient underwent cataract surgery in the right eye on (b)(6) 2023 where the miloop lens fragmentation device was used to section the cataractous lens into 6 fragments and the micor lens fragmentation system (extractor and drive) was subsequently used to remove the cataractous lens fragments.Within the first 10 seconds of initiating aspiration with the micor extractor, the posterior capsule tore at the 11 o'clock position.The tear resulted in vitreous fluid loss, vitreous hemorrhage, and a portion of the lens dropped into the vitreous cavity.An anterior vitrectomy was performed and a 3-piece intraocular lens was implanted in the sulcus.The surgeon attributed the capsular damage to a surge event.Patient follow-up information was requested from the surgeon.At the one-day postoperative visit, the patient presented with 2+ corneal edema, elevated intraocular pressure (iop), and decreased visual acuity (20/500).The patient was referred to a retina specialist and on (b)(6) 2023 the patient underwent retinal surgery remove the retained lens fragment(s) and address the vitreous hemorrhage.The patient's one-week ocular status was as follows - best corrected visual acuity (bcva): 20/450; iop: 42 mmhg; trace corneal edema.The patient remains under the care of the retina specialist and additional follow-up will be requested.

• Brand Name: MICOR LENS FRAGMENTATION SYSTEM
• Type of Device: PHACOFRAGMENTATION SYSTEM
• Manufacturer (Section D): CARL ZEISS MEDITEC CATARACT TECHNOLOGY INC.; 8740 technology way; reno NV 89521
• Manufacturer (Section G): CARL ZEISS MEDITEC CATARACT TECHNOLOGY, INC.; 8740 technology way; reno NV 89521
• Manufacturer Contact: andrew rybold ; 8740 technology way; reno, NV 89521 ; 9255959817
• MDR Report Key: 17222230
• MDR Text Key: 318071948
• Report Number: 3012123033-2023-00002
• Device Sequence Number: 1
• Product Code: HQC
• UDI-Device Identifier: 00860000122368
• UDI-Public: 00860000122368
• Combination Product (y/n): N
• Reporter Country Code: US
• PMA/PMN Number: K222236
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: Health Professional,Company Representative
• Reporter Occupation: Physician
• Type of Report: Initial
• Report Date: 06/28/2023

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: No
• Device Operator: Health Professional
• Device Expiration Date: 11/12/2023
• Device Model Number: FG-50621
• Device Lot Number: FG23051501
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 06/01/2023
• Is the Reporter a Health Professional?: Yes
• Initial Date Manufacturer Received: 05/30/2023
• Initial Date FDA Received: 06/28/2023
• Was Device Evaluated by Manufacturer?: Yes
• Date Device Manufactured: 05/16/2023
• Is the Device Single Use?: Yes
• Is This a Reprocessed and Reused Single-Use Device?: No
• Type of Device Usage: Initial
• Patient Sequence Number: 1
• Treatment: MILOOP LENS FRAGMENTATION DEVICE
• Patient Outcome(s): Disability; Required Intervention
• Patient Age: 66 YR
• Patient Sex: Male
• Patient Ethnicity: Non Hispanic
• Patient Race: White