Original: https://www.ieee802.co.jp/cases/case-008-eye-hospital-en.php

Publisher: Kei Communication Technology Inc. (慧通信技術工業株式会社)

Source: Kei Communication Technology Inc. UPS Case Study for Cataract Surgery | 5-Year Warranty and 24/7 Remote Monitoring

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Case Study / Shinnagata Eye Hospital

UPS Case Study for Cataract Surgery | 5-Year Warranty and 24/7 Remote Monitoring

UPS case study at Shinnagata Eye Hospital. Two HPPHBB0101 portable UPS units were installed on June 22, 2022 to protect the CENTURION Vision System from momentary outages, voltage sags and surges. More than four years later, the system remains under a five-year warranty and is supported by 24/7 remote monitoring.

Published: 2026-07-27
Updated: 2026-07-27
Installed
June 22, 2022
Protected system
CENTURION Vision System
Product warranty
Five years
Operations
24/7 remote monitoring

Power infrastructure designed not to interrupt cataract surgery

The CENTURION Vision System is a precision surgical platform that continuously coordinates aspiration, irrigation, pressure control, sensors and computer control. Its power risk is not limited to a complete blackout. A momentary outage, voltage sag, lightning surge or restoration surge can also trigger a protective stop or restart.

Power protection for an operating room therefore requires more than a few minutes of battery backup. The design must prevent disturbances on the utility supply from reaching the surgical system, maintain power without a transfer interruption, and provide sufficient time for staff to assess and respond if an outage continues.

Power protection for medical equipment is not only a recovery system.
It is infrastructure designed to prevent a stop event during surgery.

The power risks reviewed by Shinnagata Eye Hospital

Shinnagata Eye Hospital reviewed its existing power configuration to protect the cataract surgery system from momentary outages, voltage sags and surges. Installing a UPS alone does not eliminate risk. Battery degradation, internal UPS failure, an unprotected point in the power path, or voltage instability during restoration can become another single point of failure.

Risks addressed
  • Momentary outages and voltage sags
  • Lightning and restoration surges
  • Battery deterioration in an existing UPS
  • The UPS itself becoming a single point of failure
Required conditions
  • 0 ms uninterrupted output
  • Stable sine-wave output with low distortion
  • Expandable battery capacity
  • Continuous post-installation visibility

A configuration using two HPPHBB0101 units

On June 22, 2022, two HPPHBB0101 portable UPS units were installed at Shinnagata Eye Hospital. The bidirectional inverter separates the protected load from disturbances on the utility supply and maintains output with a 0 ms transfer during a momentary outage or blackout.

The system was configured by reviewing not only steady-state consumption, but also startup behavior, associated equipment, required runtime and installation conditions.

Power architecture
Utility power
  ↓
Two HPPHBB0101 units
  ├─ 0 ms uninterrupted output
  ├─ Bidirectional inverter
  ├─ Pure sine wave / low distortion
  └─ Expandable battery capacity
  ↓
CENTURION Vision System and associated equipment
Block momentary outages

A supply interruption does not create a transfer gap at the protected surgical system.

Condition power quality

Voltage and waveform are stabilized while the protected load is isolated from utility disturbances.

Secure response time

If an outage continues, the system provides time for assessment and an orderly operational response.

Five-year warranty and 24/7 remote monitoring

A UPS in a healthcare facility does not complete its role when it is installed. Battery condition, inverter status, input power and load behavior must remain visible so that early warning signs can be identified before they become an operational event.

The HPPHBB0101 units in this case carry a five-year product warranty. As of July 2026, the system has been operating for more than four years since the June 22, 2022 installation and remains within the warranty period.

In addition, Kei Communication Technology monitors the power equipment at Shinnagata Eye Hospital 24 hours a day, 365 days a year. Continuous status checks support early detection of changes and faster initial response rather than waiting for a visible failure.

Five-year product warranty

Long-term operation is supported by product warranty coverage, subject to the applicable warranty and contract terms.

24/7 remote monitoring

Continuous checks reduce the risk of missed warning signs and support a faster operational response.

The value of a healthcare UPS is not limited to operating during a blackout.
Warranty and monitoring protect the operating environment every day.

More than four years of operation

Power infrastructure cannot be evaluated only by its commissioning test. Operational evidence is built by passing through daily surgical use, seasonal power conditions, lightning, voltage sags, maintenance outages and battery aging while continuing to provide the required function.

The system has operated for more than four years from June 22, 2022 through July 2026. Within the scope of information available to us, no shutdown of the CENTURION Vision System caused by power quality has been reported since installation.

Date Operational status Significance
June 22, 2022 Two HPPHBB0101 units installed Uninterrupted power and power-quality protection initiated
After installation 24/7 remote monitoring Continuous visibility and faster response to changes
July 2026 More than four years in service and still within warranty Long-term operation combining product performance, warranty and monitoring

Key design points for medical equipment power

The central value of this project is not simply that two UPS units were installed. Power quality, required runtime, monitoring, warranty and maintenance were designed as one operational system around the clinical function that must not stop.

Potential applications
  • Cataract surgery systems
  • Surgical microscopes
  • Endoscopy and diagnostic systems
  • Electronic medical records and imaging terminals
  • Operating-room communications and monitoring
Conditions to verify
  • Steady-state and startup load
  • Required no-break performance and runtime
  • Grounding, leakage current and EMC conditions
  • Manufacturer-specified connection requirements
  • Installation, inspection, maintenance and monitoring

Project summary, FAQ and consultation

CustomerShinnagata Eye Hospital
Installation dateJune 22, 2022
Protected systemCENTURION Vision System and associated equipment
Installed equipmentTwo HPPHBB0101 portable UPS units
Key functions0 ms no-break output, bidirectional inverter, pure sine wave, expandable battery capacity
Product warrantyFive years
Operations24/7 remote monitoring by Kei Communication Technology
Track recordMore than four years in service as of July 2026
Why does a cataract surgery system require power-quality protection?

A cataract surgery system continuously coordinates aspiration, irrigation, pressure control, sensors and computer control. Momentary outages, voltage sags and surges may cause a protective stop or restart, so stable power is a core infrastructure requirement.

Is a five-year warranty sufficient for long-term operation?

A warranty is important, but it does not identify early warning signs by itself. In this case, the five-year product warranty is combined with 24/7 remote monitoring for continuous status checks and faster response. Warranty coverage is subject to the applicable warranty and contract terms.

What does 24/7 remote monitoring provide?

Our monitoring platform continuously checks power and equipment status so that changes or abnormal conditions can be identified early and escalated. Remote monitoring does not guarantee that failures cannot occur; it reduces the risk of missed warning signs and shortens response time.

Can a smaller ophthalmology clinic use a similar design?

Yes. The design can focus on the surgical system, microscope and associated IT equipment rather than the entire facility. Load, required runtime, installation conditions and the medical-device manufacturer’s connection requirements must be confirmed first.

Medical Power Consultation

Protect surgical equipment beyond the installation date

We review the medical-equipment model, rated load, power path, required runtime, existing UPS, emergency generator and grounding conditions, then define an operational design that includes warranty and remote monitoring.

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