CMMS for hospitals: medical equipment and plant

What a hospital CMMS is

A hospital CMMS (computerised maintenance management system) is the database and workflow a hospital uses to list its medical devices and building plant, plan their preventive maintenance, record every repair, test and calibration, and report on availability and cost. It matters because national rules ask hospital operators to prove, device by device, that equipment was maintained and checked.

The World Health Organization's Medical equipment maintenance programme overview (2011) sets out what such a system should do: schedule inspection and preventive maintenance (IPM), print IPM forms that show past service events, record IPM results as pass or fail with measurements and acceptable ranges, and record corrective maintenance with the problem, the time spent, the work done and the parts used. Its summary reports should cover IPM completion rates, IPMs that failed and needed repair, inventory by location, owner and type, repairs completed in a period and parts used.

In 2025 the WHO added Inventory and maintenance management information system for medical devices, a 122-page technical guide covering the health technology life cycle, standardised nomenclature, unique device identification and digital tools for traceability and maintenance planning. Read together, the two documents are a practical specification for anyone choosing or rebuilding a hospital CMMS.

Two estates in one hospital

A hospital runs two maintenance estates that share the same corridors. Clinical or biomedical engineering looks after medical devices: infusion pumps, patient monitors, ventilators, defibrillators, anaesthesia machines, laboratory analysers and imaging. Estates and engineering look after the building plant those devices depend on: medical gas pipelines, air-handling units, chillers, generators, uninterruptible power supplies, lifts, water systems and fire systems.

The UK's Health Technical Memoranda show how specialised that plant is. NHS England publishes separate guidance for medical gas pipeline systems (HTM 02-01), specialised ventilation (HTM 03-01), safe water (HTM 04-01), managing healthcare fire safety (HTM 05-01), electrical services supply and distribution (HTM 06-01) and lifts (HTM 08-02). Each one implies an asset list, a test routine and a record.

Neglect is expensive. In the Estates Returns Information Collection for 2024/25, NHS trusts in England reported an estimated 15.9 billion pounds needed to eradicate backlog maintenance, up from 13.8 billion pounds a year earlier, and that figure excludes planned maintenance. Keeping both estates in one CMMS gives one request desk, one technician queue and one view of what the hospital spends to keep its equipment and buildings working.

What the rules ask for, country by country

The European Medical Device Regulation (EU) 2017/745 mainly regulates manufacturers. It sets no maintenance intervals for hospitals; instead Annex I section 23.4(k) requires the instructions for use to state the nature and frequency of preventive and regular maintenance. The rules for operating and maintaining devices in a hospital come from national law and guidance, summarised below as of October 2026.

• Germany, MPBetreibV 2025 (in force since 20 February 2025): section 7 maintenance by qualified people using the manufacturer's information; section 12 safety checks (STK) at least every two years for Anlage 1 devices; section 13 medical device book; section 14 inventory of all active non-implantable devices; section 15 metrological checks (MTK) for Anlage 2 devices.
• France, Public Health Code: R.5212-14 makes the operator responsible for planned maintenance and quality control; R.5212-18 requires an up-to-date inventory and a register per device kept five years after the end of use. The rules descend from décret 2001-1154 and have been recodified since, so check the current article numbers on Légifrance.
• EU-wide: under MDR Article 27(9) health institutions must store the UDI of class III implantable devices they supply or are supplied with, preferably electronically.
• United Kingdom: the MHRA guidance Managing Medical Devices (January 2021) says records should be kept within one system wherever possible and should show a unique identifier, purchase history, location, and the schedule and details of maintenance and repairs.
• United States: CMS letter S&C 14-07 requires all facility and medical equipment, leased or owned, to be in an inventory with a record of maintenance activities, and allows an alternate equipment management programme based on a documented risk assessment.
• Saudi Arabia: SFDA guidance MDS-G49 (version 1.0, 2021) asks maintenance facilities to provide a maintenance management system and a stock management system for device data and spare parts; CBAHI's National Hospital Standards (3rd edition, 2016) contain a Facility Management and Safety chapter. Check SFDA and CBAHI for newer editions.

The three records every device needs

Strip away the national detail and every regime asks for the same three things per device: an inventory entry that identifies it and says where it is, a maintenance plan that says what will be done and how often, and a history that proves what was done, by whom, with what result. A CMMS is simply the place where those three records are kept together and linked.

The inventory entry carries the identifiers inspectors look for: name, type, manufacturer, model, serial or lot number, in-house asset number, location and department, date of first use and, for implants, the UDI. The plan is a set of preventive maintenance schedules, each with a frequency, a checklist and a next due date. The history is the stream of work orders: corrective repairs raised from user requests, preventive visits raised from schedules, calibrations, installations and acceptance checks on new equipment.

Two design choices save pain later. Use a common nomenclature name for each device type, not only the vendor's model name; the WHO notes that this lets a hospital compare failure rates and service costs across brands. And enter new equipment before it is used, as the WHO inventory guide recommends, so the acceptance check is the first line in the device's history.

Worked example: sizing the planned workload

A CMMS turns the plan into hours, which is how a head of clinical engineering defends a staffing budget. Take eight equipment groups in a 120-bed hospital, with the number of units, visits per year and hours per visit taken from the manufacturers' instructions and the team's own timings.

The eight groups need 720 planned work orders and 759 technician hours a year. If last year's corrective work orders logged 1,041 hours, the total is 1,800 hours. At 1,500 productive hours per technician a year, that is 1.2 full-time technicians before calibrations, acceptance checks and projects are added. Without start and finish times on work orders, none of these figures can be measured.

• Infusion pumps: 180 units x 1 visit x 0.75 hours = 135 hours
• Patient monitors: 60 units x 1 visit x 1.0 hour = 60 hours
• Defibrillators: 24 units x 2 visits x 0.5 hours = 24 hours
• Ventilators: 30 units x 2 visits x 2.0 hours = 120 hours
• Anaesthesia machines: 12 units x 2 visits x 3.0 hours = 72 hours
• Air-handling unit filter changes: 20 units x 12 visits x 1.0 hour = 240 hours
• Medical gas alarm panel tests: 6 panels x 12 visits x 0.5 hours = 36 hours
• Generator monthly runs: 3 sets x 12 visits x 2.0 hours = 72 hours

Work orders that stand up to an inspector

An inspector does not read the plan; they sample the history. A work order that survives that sampling records the device, the type of work, who performed it and for which employer, when the device was taken out of service and when it was returned, what was measured, whether the result conformed, and a sign-off. The French register under R.5212-18 lists almost exactly those items, including the downtime and restart dates when a device is found non-conformant.

Electrical-safety testing is a good example of the split between the test and the record. IEC 62353 covers testing of medical electrical equipment built to IEC 60601-1 before it is put into service, during maintenance and servicing, after repair and at recurrent tests. The test is done with a safety analyser by qualified staff; the CMMS holds the checklist, the measured values against their limits, the result and the document. In Germany, section 12(3) of the MPBetreibV adds that the STK protocol must record date, results, measured values and methods, and the device must be labelled with the month and year of the next check.

Root-cause fields are what turn history into improvement: a failure code, a cause, the corrective action and a recommendation. Ten repairs coded 'battery' on one pump model tell procurement something that ten free-text notes never will.

Working safely in clinical areas: permits and infection control

Maintenance in a hospital happens next to patients. The US Centers for Disease Control and Prevention's Guidelines for Environmental Infection Control in Health-Care Facilities (2003) recommend a multidisciplinary team that includes infection-control staff to coordinate demolition, construction and renovation, and an infection-control risk assessment (ICRA) before a project starts to define its scope and the barrier measures needed, such as dust barriers and negative air pressure in work zones next to patient-care areas. In the UK, Health Building Note 00-09 is NHS England's guidance on infection control in the built environment.

A permit to work is how that assessment reaches the technician. A useful permit records the area, the hazards, the controls, the PPE, the isolation points and the sign-offs of the person issuing it and the person holding it, with a validity window. The control that matters is a gate: work on a job flagged as needing a permit should not be able to start until the permit is active. Setting up a dedicated permit type for work in patient areas, with infection-control sign-off as a required step, keeps the rule from depending on memory.

Vendors, service contracts and warranty claims

Much hospital equipment is serviced by its manufacturer or a third-party provider, and French law names all three routes: the manufacturer, a third-party maintainer or the operator itself. The CMMS should hold each service contract with its start and end dates, covered assets, visits per year, response and resolution times, and whether parts, labour and calibration are included, so that every external visit can be checked against what was bought.

Warranty is the other leak. Suppose a patient monitor fails in month 10 of a 24-month warranty and the engineer's invoice is 1,350 euros: 450 euros labour and 900 euros parts. If the work order records that the device was under warranty when the job was raised, a claim goes to the supplier for 1,350 euros; the supplier approves the 900 euros of parts and the hospital recovers that amount, so the net cost of the repair is 450 euros instead of 1,350 euros. Across a fleet of a few thousand devices, unclaimed warranty repairs add up quickly.

Reporting: availability, completion and cost by department

Four reports answer most management questions. Mean time to repair and mean time between failures show how reliable each device type is and how fast the team restores it. A PPM completion report shows how much of the plan was delivered; the WHO suggests a completion goal above 90 percent, and over 95 percent for the highest-priority devices, as guidance rather than law. Downtime analysis shows which devices were out of service and for how long.

Cost by department closes the loop with finance. If intensive care's work orders in a quarter show 120 labour hours at 55 euros (6,600 euros), 8,400 euros of parts and 5,000 euros of external service, its maintenance cost is 20,000 euros. Comparing that figure with the department's budget and with the replacement value of its equipment is the start of a replacement plan. Our guide on maintenance KPIs works through the MTBF and MTTR formulas in detail.

A 90-day implementation plan

Most hospital CMMS projects fail on data, not software. A phased plan keeps the inventory honest and gets technicians using the system early.

• Days 1 to 15: agree the asset categories, the common nomenclature, the in-house numbering scheme and the criticality scale
• Days 16 to 45: import the existing inventory, then walk each ward and plant room to verify location and serial number
• Days 31 to 60: build PPM schedules from the manufacturers' instructions and national intervals, highest-risk devices first
• Days 46 to 75: switch the request desk to the CMMS so every repair starts as a recorded request
• Days 61 to 90: load service contracts and warranties, then run the first monthly report on completion, downtime and cost
• From day 91: review failed IPMs and repeat failures monthly with clinical users and procurement

How Skyline Nexus ERP supports hospital maintenance

Skyline Nexus ERP serves hospitals on the engineering and finance side: CMMS, asset register and accounting are on every current Skyline Nexus plan, with facility management screens alongside. Work orders are typed Corrective, Preventive, Calibration, Installation or Acceptance and carry the asset, branch, assigned engineer, technician sign-off with signature, downtime hours, labour, parts and external cost, and failure and root-cause codes; an Acceptance work order cannot be completed until its checklist is 100 percent done. Staff raise a Work Order Request that a reviewer approves into a work order. PPM Schedules hold the frequency, checklist and next due date, and a planner raises the work order from the schedule; task lists can require a photo, a sign-off or a measurement with minimum and maximum limits.

In Skyline Nexus, a work order flagged permit required cannot start until its permit is active, and you can set up your own permit type for infection-control work. Compliance records hold certificate numbers and expiry dates, vendor contracts hold response and resolution hours and visits per year, and warranty claims track claimed, approved and recovered amounts. Reports cover MTTR, MTBF, PPM compliance (completed work orders as a share of those raised from each schedule), downtime and maintenance costs by department; work orders and schedules carry a branch, so several hospitals or campuses run in one account. We can preload a hospital starter set of asset categories and PPM templates on request, and CMMS screens are available in English, Arabic, German, French, Spanish and Italian.

Start the free month or book a demo and bring a sample of your device inventory: twenty devices are enough to see the request, work order, schedule and report cycle end to end.