MAUDE Adverse Event Report: OLYMPUS MEDICAL SYSTEMS CORP. URETERO-RENO VIDEOSCOPE

Model Number URF-V

Device Problem Break (1069)

Patient Problem Complaint, Ill-Defined (2331)

Event Type  Injury  

Manufacturer Narrative

The subject device has not been returned to olympus medical systems corp (omsc).Omsc could not review the service and manufacturing record because the serial number was not provided by the facility.There was no report of patient infection associated with this report.The exact cause could not be determined.

Event Description

On july 04th, 2018, olympus received literature titled ¿steep infundibulopelvic angle (ipa) as a new risk factor for flexible ureteroscope damage and complicated postoperative course¿ that was made in public in european urology.In the literature, long-term hospitalization, or grade 2 or more of clavien-dindo classification was reported as complications, but the number of complications was not reported.The literature reported that a non-olympus ureterorenoscope(flex-x2) and an olympus ureterorenoscope(urf-v) as the endoscopic equipment used for the study.However, the literature did not describe which endoscope model was used in which cases.Since the relationship between the number of complications and the subject device is unclear, olympus submit one medical device report.The abstract of the literature is as follows.[abstract]: introduction &objectives: the increasing number of flexible ureterorenoscopy (furs) procedures, the fragility of devices and their growing repair costs represent a substantial burden for urological departments worldwide.No risk factors of flexible ureteroscope damage have been identified so far.The objective of this study was to investigate the impact of infundibulopelvic angle (ipa) on device damage and on other intra- and postoperative factors such as length of hospital stay (los), surgical complications, stone-free rate (sfr), operation and fluoroscopy time.Materials &methods: in a retrospective monocentric study, ipa was measured based on intraoperative retrograde pyelography (rpg) images taken during furs.All procedures were conducted with modern reusable flexible ureteroscopes: karl storz flex-x2 or olympus urf-v.Statistical analysis was performed in rstudio (version 1.0.136) with the unpaired t-test and mann-whitney u-test.Pearson correlation coefficient (pearson's r) was measured whenever applicable.Results: in total, 382 furs performed between september 2013 and march 2017 were analyzed: 259 (67.8%) for kidney stone surgery, and 123 (32.2%) for diagnostic purposes; of these 38 (9.95%) devices were postoperatively deemed defective.?ipa values were significantly steeper in cases with flexible ureteroscope damage compared to cases without damage (42.76 degrees [sd±16.25] vs.55.89 [sd±18.75], p<0.001).Steeper ipa was significantly associated with the occurrence of clavien-dindo = 2 complications (46.41 degrees [sd±20.17] vs.55.52 [sd±18.64], p=0.004) as well as prolonged hospital stay (48.93 degrees [sd±20.14] vs.55.47 [sd±18.72], p<0.001).No influence on sfr was observed (p>0.05).Ipa did not correlate with operation or fluoroscopy time.Conclusions: steep ipa can be considered the first risk factor predicting both flexible ureteroscope damage and an unfavorable postoperative course.A better understanding of damage mechanisms is key for the proper indications to use costly single-use devices.

• Brand Name: URETERO-RENO VIDEOSCOPE
• Type of Device: URETERO-RENO VIDEOSCOPE
• Manufacturer (Section D): OLYMPUS MEDICAL SYSTEMS CORP.; 2951 ishikawa-cho; hachioji-shi, tokyo-to 192-8 507; JA 192-8507
• Manufacturer Contact: kazutaka matsumoto ; 2951 ishikawa-cho; hachioji-shi, tokyo-to 192-8-507 ; JA 192-8507 ; 426425177
• MDR Report Key: 7702002
• MDR Text Key: 114411707
• Report Number: 8010047-2018-01406
• Device Sequence Number: 1
• Product Code: FGB
• UDI-Device Identifier: 04953170287183
• UDI-Public: 04953170287183
• Combination Product (y/n): N
• Reporter Country Code: GM
• PMA/PMN Number: K072957
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: literature,user facility
• Reporter Occupation: Other
• Type of Report: Initial
• Report Date: 07/19/2018

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: No Information
• Device Model Number: URF-V
• Was Device Available for Evaluation?: No
• Was the Report Sent to FDA?: No
• Initial Date Manufacturer Received: 07/04/2018
• Initial Date FDA Received: 07/19/2018
• Was Device Evaluated by Manufacturer?: Device Not Returned to Manufacturer
• Is the Device Single Use?: No
• Is This a Reprocessed and Reused Single-Use Device?: No
• Type of Device Usage: Reuse
• Patient Sequence Number: 1
• Patient Outcome(s): Other