Most assets can survive a vague record. Medical devices cannot. The serial number on an infusion pump or pulse oximeter is what connects it to a manufacturer recall, a warranty claim, a service contract, and the uncomfortable question “which unit was used?” when something goes wrong. This guide covers serial-first device tracking for smaller providers: what to record, how to label a device without obscuring anything that matters, and how to keep service history attached to the unit instead of scattered across inboxes.
What you will learn
- Start with the serial number
- The device record: fields that matter
- Movements, assignments and patient loans
- Labelling a regulated device
- Service history that stays with the unit
- Tools that make this easier
- FAQ
Start with the serial number
Two identifiers, two jobs. The serial number is the manufacturer’s name for one specific unit - it is what a recall notice cites, what the warranty database holds, and what the service engineer asks for. Your asset ID is the short code on your own label, the one staff can read out over the phone. A working register maps each to the other.
The habit that makes everything downstream possible: capture the serial at goods-in, the day the device arrives, before it reaches a treatment room. Photograph the rating plate and attach the photo to the record. Newer devices also carry a UDI (unique device identification) marking - record it where present, since safety notices increasingly reference it. Chasing serials off deployed devices later means hunting the very items you were trying to track.
The device record: fields that matter
| Field | Why it matters |
|---|---|
| Asset ID | The short code on your label - what people actually quote |
| Manufacturer + model | Groups units for recalls, spares and replacement planning |
| Serial number (and UDI) | The unit’s legal identity for recalls, warranty and service contracts |
| Status | In use, in storage, in repair, retired - a pump at the service centre is not a lost pump |
| Current location | Room, site or vehicle; devices move more than the people tracking them |
| Assigned or loaned to | The named person or patient holding it, with a date |
| Purchase date, price, supplier | Anchors warranty terms and end-of-life budgeting |
| Warranty end date | Checked before any paid repair - see warranty tracking |
| Last service + next due | The maintenance question every audit opens with |
| Documents | Rating-plate photo, manual, service certificates, repair invoices |
Movements, assignments and patient loans
A device register goes stale at the moments a device changes hands, so log those moments as events rather than overwriting a location cell:
- Between rooms and sites: record transfers, not edits. The history is what makes the record believable a year later.
- Pool devices: assign to a department or location when no single person holds them, so “the ward’s pump” still has an address.
- Patient loans: monitors and pumps sent home with patients are open-ended check-outs to a named borrower. Capture condition at hand-over and return, and review the open-loans list monthly.
- Repairs: check the device out to the repair company like any other borrower. More devices vanish at service time than any other moment - the courier collects, a loaner arrives, and six weeks later nobody is sure which unit is where.
Tip: when a loaner unit arrives to cover a repair, register it immediately, even if it only stays a month. Untracked loaners are how sites end up returning the wrong unit - or paying for one that was never theirs to keep.
Labelling a regulated device
Labelling a medical device has one extra rule the rest of your equipment does not: never cover the manufacturer’s plate. Rating plates, serial and UDI markings, and safety symbols must stay legible to engineers and inspectors - a label that hides them creates the compliance problem it was meant to solve. Two placement rules follow from the same logic:
- Avoid removable parts; a label on a detachable battery pack tracks the battery pack.
- For small probes and handhelds, label the case or charging dock instead, and rely on the serial for the unit itself.
Label material and casing placement - the disinfection and wipe-down side of the problem - are covered in the medical equipment guide. A QR code above a printed asset ID does both jobs: a phone-camera scan opens the device’s record on the spot, and the printed ID covers paper forms and phone calls.
Service history that stays with the unit
The value of a device register compounds at repair time. Every fault report, service ticket, safety test and repair invoice should attach to the unit’s record - not to a generic maintenance folder - because the decisions that matter are per-unit. A pump on its third repair in a year is a candidate for retirement regardless of its age; the only way to see that pattern is a history in one place. The same history is what tells you a unit is approaching the end of its useful life before it fails mid-clinic, and what an incident review will request first.
When a device is retired, keep the record and mark it retired rather than deleting it. What happened to a device - returned, recycled, sold, scrapped - is a question that can arrive years later.
Tools that make this easier
Spreadsheets struggle with devices in two specific ways. A serial number mistyped into a sheet is invisible until the day a recall notice does not match anything you own. And a sheet records states, not events - it can say where a device is, but not who moved it, when, or what condition it was in, which is precisely what device tracking exists to answer.
AMPthilly keeps the whole chain on the device’s profile: serial, supplier, purchase and warranty dates, rating-plate photos and certificates attached; printable QR labels that open the record in any phone browser, no app installed; check-outs to employees, patients (as clients), departments or locations with due dates; a service desk where issues are reported with photos and every ticket stays on the device permanently; and an audit history of every movement and edit. The free plan - 3 users, 25 assets, no card - is enough to put your highest-risk devices under proper control first. The full feature set is on the features page.
FAQ
How do you track medical devices by serial number? Capture the serial from the rating plate at goods-in, photograph the plate, and map the serial to your own asset ID in one register. Every event logged afterwards is then traceable to the unit.
What is the difference between an asset ID and a serial number? The serial is the manufacturer’s identifier; the asset ID is your short, label-friendly code. The register maps one to the other - you need both.
How do we track devices loaned to patients? Open-ended check-outs to a named borrower, with condition recorded at hand-over and return, and a monthly review of the open-loans list.
What service records should we keep for each device? Every fault, repair, test and invoice, with dates and outcomes, attached to the unit’s own record - per-unit history is what drives repair-or-replace decisions.
Do small clinics need medical device tracking software? A disciplined sheet can manage a few dozen devices; software earns its place when updates need to happen from corridors and clinics, in seconds, by scan.
The takeaway
Device tracking is serial-first: capture the manufacturer’s identity at goods-in, pair it with your own labelled asset ID, and from then on log movements, loans and repairs as events against the unit. Keep service history and documents pinned to each device, and recalls, warranty claims, audits and incident reviews all become lookups against a record you already trust.