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

Model Number	CU-151R
Medical Device Problem Codes	Display or Visual Feedback Problem (1184); Output Problem (3005)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	11/11/2025
Type of Reportable Event	Malfunction
Event or Problem Description
The biomedical engineer (bme) reported that the touchscreen on the g5 monitor was freezing up when trying to set it up.No patient harm was reported.
Additional Manufacturer Narrative
The biomedical engineer (bme) reported that the touchscreen on the g5 monitor was freezing up when trying to set it up.The customer refused any troubleshooting and requested a repair.No patient harm was 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: 11/13/2025 emailed the customer via microsoft outlook for the information in the ni list above: no reply was received.Attempt # 2: 11/19/2025 emailed the customer via microsoft outlook for the information in the ni list above: no reply was received.Attempt # 3: 11/26/2025 emailed the customer via microsoft outlook for the information in the ni list above: the customer replied, stating that the requested information cannot be provided.
Additional Manufacturer Narrative
Details of complaint: the biomedical engineer (bme) reported that the touchscreen on the g5 monitor was freezing up when trying to set it up.The customer refused any troubleshooting and requested a repair.No patient harm was reported.Investigation summary: the g9 monitor was returned to nihon kohden (nk) for evaluation and repair.During the evaluation, the reported issue was duplicated.The root cause was determined to be failure of the touch panel on the display screen.Nk will continue to monitor and trend.The following field contains no information (ni), as attempts to obtain the information were made, but not provided: d10 attempt # 1: 11/13/2025 emailed the customer via microsoft outlook for the information in the ni list above: no reply was received.Attempt # 2: 11/19/2025 emailed the customer via microsoft outlook for the information in the ni list above: no reply was received.Attempt # 3: 11/26/2025 emailed the customer via microsoft outlook for the information in the ni list above: the customer replied, stating that the requested information cannot be provided.Additional information: b4 date of this report.G3 date received by manufacturer.G6 type of report.H2 if follow-up, what type?.H6 event problem and evaluation cod es.H11 additional manufacturer narrative.
Event or Problem Description
The biomedical engineer (bme) reported that the touchscreen on the g5 monitor was freezing up when trying to set it up.No patient harm was 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: 23717852
• Report Number: 8030229-2025-05905
• Device Sequence Number: 18354342
• Product Code: MHX
• UDI-Device Identifier: 04931921002018
• UDI-Public: (01)04931921002018
• Combination Product (Y/N): N
• Initial Reporter State: PA
• 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): 02/24/2026

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-151R
• Device Catalogue Number: CU-151R
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 11/20/2025
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 11/11/2025
• Supplement Date Received by Manufacturer: 02/18/2026
• Initial Report FDA Received Date: 12/04/2025
• Supplement Report FDA Received Date: 02/24/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 06/08/2022
• 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