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Catalog Number BD-S50150L
Device Problems Material Fragmentation (1261); Material Split, Cut or Torn (4008)
Patient Problem Device Embedded In Tissue or Plaque (3165)
Event Date 11/12/2021
Event Type  Injury  
Manufacturer Narrative
The concerned device "senri" is a rapid-exchange (rx) type semi-compliant pta balloon dilatation catheter compatible to 0. 018"guidewire (gw). "senri" has no approval in the us, however, we will report this case as an incident occurred on a similar device for "crosstella rx" (a rx-type pta balloon dilatation catheter, compatible to 0. 018" gw) that is distributed in the us under 510(k) # k152873. The device history records (dhr) of the device concerned was reviewed: the production lot, to which the device concerned belongs, passed all in-process inspections for every product, and the finished product inspections on representative samples based on sampling plan. No nonconformity or abnormality in the manufacturing processes of the device concerned was found. Results of the investigation on returned concerned device: there is no abnormality at the distal tip and balloon part. The shaft was broken at the base of the balloon 162 mm from the distal tip. The gw lumen was torn between 170 mm to 276 mm from the distal tip. We also confirmed that the gw lumen was broken at 276 mm from the distal tip. The outer shaft and gw lumen were torn to the guide wire port. No nonconformity or abnormality was found in the manufacturing processes according to the device history records (dhr). In addition, actual investigations of the concerned device confirmed the shaft broken, but no cause due to the manufacturing process or design. Neither the dhr nor the information available suggests a design or manufacturing related cause for the reported event; therefore, no corrective/preventive action will be taken at this time. Factors that may contribute to the shaft broken include, but are not limited to the following. It is probable that the operator delivered the concerned device from the tip of the sheath until the gw port of the product came out. Therefore, when the concerned device was tried to remove from the sheath, the gw used in combination was slackened at the sheath tip and formed a loop. In that state, the operator further pulled the concerned device, so the gw lumen (gw port) of the product was torn in the distal direction by the gw, and the shaft of the product was broken.
Event Description
After crossover pta, the senri catheter was pulled back but at the 4fr terumo introducer sheath the distal marker with a balloon fragment got torn off. An attempt to retrieve the fragment with a snare catheter fails. The piece is finally fixed in the wall by a stent implantation and the lumen is thus secured. On (b)(6) 2021, due to an acute thrombosis in the stented afs segment, a femoral bypass has to be performed. The balloon fragment will be recovered and preserved. The patient status is unknown. We will contact the hospital/physician to get more information on the status of the patient. (b)(6) 2021 additional information call with dr. (b)(6): he used a radifocus introducer ii in 4fr, an 0. 018'' gw advantage wire and the senri balloon during the procedure. After using the balloon, it was not easy to pull back the balloon into the sheath but with "increasing resistance" it was finally possible. Then a section tore off. Dr. (b)(6) pulled the balloon out via a 7f destination, picked up the senri and measured it. According to his calculation (and what he saw), only a small piece of marker was missing. Since he had to stent a right stenosis anyway, he took two overlapping smartflex stents for it, pressing the fragment against the vessel wall. A week after discharge, the patient came back with a cold leg. The surgeons then recovered a piece of senri and gave it to dr. (b)(6). He saved it all and we will pick it up tomorrow. Dr. (b)(6) thinks the balloon would have split longitudinally from the gw advantage wire. The patient received a p1 bypass after the stent thrombosis and was discharged two days ago.
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Brand NameSENRI
Manufacturer (Section D)
nakanoshima, kita-ku
osaka-city, 53082 88
JA 5308288
Manufacturer (Section G)
osaka, 56600 72
JA 5660072
Manufacturer Contact
joji sengoku
minato-ku, akasaka
tokyo, 10760-28
JA   1076028
MDR Report Key13050317
MDR Text Key288273480
Report Number3002808904-2021-00013
Device Sequence Number1
Product Code LIT
Combination Product (y/n)N
Reporter Country CodeGM
PMA/PMN Number
Number of Events Reported1
Summary Report (Y/N)N
Report Source Manufacturer
Source Type Foreign
Reporter Occupation
Type of Report Initial
Report Date 11/26/2021
1 Device was Involved in the Event
1 Patient was Involved in the Event
Date FDA Received12/21/2021
Is this an Adverse Event Report? Yes
Is this a Product Problem Report? Yes
Device Operator
Device Catalogue NumberBD-S50150L
Device Lot NumberSR091299
Was Device Available for Evaluation? Device Returned to Manufacturer
Date Returned to Manufacturer12/13/2021
Is the Reporter a Health Professional? Yes
Date Manufacturer Received11/26/2021
Was Device Evaluated by Manufacturer? Yes
Date Device Manufactured09/04/2021
Is the Device Single Use? Yes
Is This a Reprocessed and Reused Single-Use Device? No
Type of Device Usage Initial

Patient Treatment Data
Date Received: 12/21/2021 Patient Sequence Number: 1