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

Model Number	CU-152R
Medical Device Problem Codes	Power Problem (3010); Complete Loss of Power (4015)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	11/09/2025
Type of Reportable Event	Malfunction
Event or Problem Description
The customer reported that the bedside monitor was showing a battery error and would shut off although it was connected to ac power.The customer replaced the battery and have not had any issues since.Not in patient use.
Additional Manufacturer Narrative
The customer reported that the bedside monitor was showing a battery error and would shut off although it was connected to ac power.The customer replaced the battery and have not had any issues since.Not in patient use.Investigation conclusion: the customer replied that the issue has not recurred after they replaced the battery.There was no confirmed malfunction with the g5.Based on the resolution details, the issue followed the battery pack and the cause was battery failure.Additional device information: the following field(s) contains no information (ni), as attempts to obtain information were made, but not provided.D10 concomitant medical device.Attempt #1.11/05/2025 emailed customer via microsoft outlook for all items under the no information section.No reply was received.Attempt #2.11/10/2025 emailed customer via microsoft outlook for all items under the no information section.The customer responded back with complaint details, but they did not provide the additional device information as requested.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 codes.H11 additional manufacturer narrative.
Event or Problem Description
The customer reported that the bedside monitor was showing a battery error and would shut off although it was connected to ac power.The customer replaced the battery and have not had any issues since.Not in patient use.
Additional Manufacturer Narrative
The customer reported that the bedside monitor was showing a battery error and would shut off although it was connected to ac power.The customer replaced the battery and have not had any issues since.Not in patient use.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.Additional device information: the following field(s) contains no information (ni), as attempts to obtain information were made, but not provided.D10 concomitant medical device.Attempt #1.11/05/2025: emailed customer via microsoft outlook for all items under the no information section.No reply was received.Attempt #2.11/10/2025: emailed customer via microsoft outlook for all items under the no information section.The customer responded back with complaint details, but they did not provide the additional device information as requested.

• 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: 23700600
• Report Number: 8030229-2025-05825
• Device Sequence Number: 10629104
• Product Code: MHX
• UDI-Device Identifier: 04931921002056
• UDI-Public: (01)04931921002056
• Combination Product (Y/N): N
• Initial Reporter State: GA
• 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): 02/19/2026

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: 11/09/2025
• Supplement Date Received by Manufacturer: 02/18/2026
• Initial Report FDA Received Date: 12/02/2025
• Supplement Report FDA Received Date: 02/19/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 06/27/2023
• 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