MAUDE Adverse Event Report: COOK INC COOK SINGLE-USE HOLMIUM LASER FIBER; GEX POWERED LASER SURGICAL INSTRUMENT

Model Number	G23553
Medical Device Problem Code	Break (1069)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	08/07/2025
Type of Reportable Event	Malfunction
Event or Problem Description
It was reported that the tip of the cook single-use holmium laser fiber broke off.Before the procedure, no issues were noted when the laser fiber was removed from the packaging and inspected.Therefore, the fiber was screwed without issue into the laser aperture and turned on.The laser beam made a perfect circle and the aperture was switched to 'ready'.During the procedure, the laser fiber broke up the kidney stone 'without issue for quite a while' before a staff person noted that part of the tip of the fiber had broken off.The fiber was removed, and the tip of the fiber was received by irrigating the kidney and bladder.The remaining parts of the kidney stone were removed with an unspecified stone extractor.No part of the tip of the laser fiber remained in the patient's body.The patient did not experience any adverse effects or require any additional procedures due to this occurrence.
Additional Manufacturer Narrative
Blank fields on this form indicate the information is unknown or unavailable.E1 - zip code: (b)(6).E1 - phone number: (b)(6).E1 - email: (b)(6).H3 - device evaluation anticipated but not yet begun.This report includes information known at this time.A follow up report will be submitted should additional relevant information become available.This report is required by the fda under 21 cfr part 803.This report is based on unconfirmed information submitted by others.Neither the submission of this report nor any statement made in it is intended to be an admission that any cook device is defective or malfunctioned; that a death or serious injury occurred; or that any cook device caused or contributed to; or is likely to cause or contribute to a death or serious injury if a malfunction occurred.
Additional Manufacturer Narrative
Additional information: d4 - primary udi number investigation ¿ evaluation event description: it was reported that the tip of the cook single-use holmium laser fiber broke off.Before the procedure, no issues were noted when the laser fiber was removed from the packaging and inspected.Therefore, the fiber was screwed without issue into the laser aperture and turned on.The laser beam made a perfect circle and the aperture was switched to 'ready'.During the procedure, the laser fiber broke up the kidney stone 'without issue for quite a while' before a staff person noted that part of the tip of the fiber had broken off.The fiber was removed, and the tip of the fiber was received by irrigating the kidney and bladder.The remaining parts of the kidney stone were removed with an unspecified stone extractor.No part of the tip of the laser fiber remained in the patient's body.The patient did not experience any adverse effects or require any additional procedures due to this occurrence.Reviews of documentation including the complaint history, device history record (dhr), quality control procedures, and instructions for use (ifu), as well as a visual inspection of the returned device, were conducted during the investigation.The complaint device was returned to cook for evaluation.Upon visual inspection, the tip of the fiber was broken and had a jagged appearance.Additionally, a document-based investigation evaluation was performed.A review of the device master record (dmr) concluded that sufficient inspection activities are in place to identify this failure mode prior to distribution.A review of the dhrs for the reported complaint device lot and the related subassembly lots revealed no recorded non-conformances relevant to the failure mode.A complaint history search identified no other events reported for the related failure mode.Based on the available information, cook has concluded that the device was manufactured to specification and there is no evidence suggesting nonconforming product exists either in house or in the field.Cook also reviewed product labeling.The ifu packaged with the device contains the following in relation to the reported failure mode: "warning.Do not bend fiber at sharp angles.Precautions.Never subject fiberoptics to sharp bends in handling, use, or storage.How supplied.Upon removal from package, inspect the product to ensure no damage has occurred.¿ based on the information provided, inspection of the returned device, and the results of the investigation, a potential root cause for this event could not be established.The appropriate personnel have been notified.Cook will continue to monitor for similar complaints.Per the risk assessment no further action is required.This report is required by the fda under 21 cfr part 803 and is based on unconfirmed information submitted by others.Neither the submission of this report nor any statement contained herein is intended to be an admission that any cook device is defective or malfunctioned, that a death or serious injury occurred, nor that any cook device caused, contributed to, or is likely to cause or contribute to a death or serious injury if a malfunction occurred.
Event or Problem Description
No additional information regarding the patient and/or event has been received since the previous medwatch report was sent.

• Brand Name: COOK SINGLE-USE HOLMIUM LASER FIBER
• Common Device Name: GEX POWERED LASER SURGICAL INSTRUMENT
• Manufacturer (Section D): COOK INC; 750 daniels way; bloomington IN 47404
• Manufacturer (Section G): COOK INC; 750 daniels way; bloomington IN 47404
• Manufacturer Contact: jason crouch ; 750 daniels way; bloomington, IN 47404 ; 8123392235
• MDR Report Key: 22863298
• Report Number: 1820334-2025-01046
• Device Sequence Number: 18087504
• Product Code: GEX
• UDI-Device Identifier: 00827002235533
• UDI-Public: (01)00827002235533(17)280408(10)16547000
• Combination Product (Y/N): N
• Initial Reporter Country: AU
• PMA/510(K) Number: K163197
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Other,Foreign,Company Representative
• Initial Reporter Occupation: Other
• Type of Report: Initial,Followup
• Report Date (Section B): 12/04/2025

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Operator of Device: Health Professional
• Device Model Number: G23553
• Device Catalogue Number: HLF-S273-H30
• Device Lot Number: 16547000
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Is the Reporter a Health Professional?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 08/08/2025
• Supplement Date Received by Manufacturer: 11/24/2025
• Initial Report FDA Received Date: 08/21/2025
• Supplement Report FDA Received Date: 12/04/2025
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 04/08/2025
• Is the Device Labeled for Single Use? (Y/N): Yes
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Initial
• Patient Sequence Number: 1
• Patient Sex: Unknown