MAUDE Adverse Event Report: NIHON KOHDEN CORPORATION NIHON KOHDEN LIFE SCOPE G5 BEDSIDE MONITORING SYSTEM

Model Number	CU-152R
Medical Device Problem Codes	Incorrect, Inadequate or Imprecise Result or Readings (1535); Output Problem (3005)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	03/20/2026
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
The customer reported that this unit displayed an incorrect map.According to the customer, map was calculated manually by the clinical staff to avert potential patient harm.The clinical specialist worked with the customer and checked the clinical settings to confirm that the nibp map calculation was set correctly to "calculate" as this would have impacted the map value generated.The nibp map was set correctly.There was no patient injury reported.Nihon kohden continues to investigate the reported event.Nihon kohden will submit a supplemental report in accordance with 21 cfr section 803.56 when additional information becomes available.The following field contains no information (ni), as attempts to obtain the information were made, but not provided: d10 attempt # 1: 03/27/2026 emailed the customer via microsoft outlook for the information in the ni list above: no reply was received.Attempt # 2: 03/31/2026 i called shawn to ask for model and serial numbers of any devices the reported device was connected or related to.A message was left for shawn to call me back with this information.Attempt # 3: 04/06/2026 i called shawn to ask for model and serial numbers of any devices the reported device was connected or related to.A message was left for shawn to call me back with this information.
Event or Problem Description
The customer reported that this unit displayed an incorrect map.According to the customer, map was calculated manually by the clinical staff to avert potential patient harm.There was no patient injury reported.

• Brand Name: NIHON KOHDEN LIFE SCOPE G5 BEDSIDE MONITORING SYSTEM
• Common Device Name: BEDSIDE MONITOR
• Manufacturer (Section D): NIHON KOHDEN CORPORATION; attn: shama mooman; 1-31-4 nishiochia; shinjuku-ku, tokyo 161-8 560; JA 161-8560
• Manufacturer (Section G): NIHON KOHDEN TOMIOKA CORPORATION; attn: shama mooman; 1-1 tajino; tomioka city, gunma 370-2 314; JA 370-2314
• Manufacturer Contact: shama mooman ; seibu bldg 2, 4th floor 1-11-2; kusunokidai tokorozawa, saitama 359-8-580 ; JA 359-8580
• MDR Report Key: 24860238
• Report Number: 8030229-2026-06413
• Device Sequence Number: 9271656
• Product Code: MHX
• UDI-Device Identifier: 04931921002056
• UDI-Public: (01)04931921002056
• Combination Product (Y/N): N
• Initial Reporter State: CA
• Initial Reporter Country: US
• PMA/510(K) Number: K203435
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: User Facility
• Initial Reporter Occupation: Biomedical Engineer
• Type of Report: Initial,Followup
• Report Date (Section B): 06/16/2026

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: CU-152R
• Device Catalogue Number: CU-152R
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 03/20/2026
• Supplement Date Received by Manufacturer: 06/11/2026
• Initial Report FDA Received Date: 04/13/2026
• Supplement Report FDA Received Date: 06/16/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 05/25/2023
• Is the Device Labeled for Single Use? (Y/N): No
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Reuse
• Patient Sequence Number: 1
• Patient Sex: Unknown