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For the people who record the trace

Record it once, properly, with the judgement written down.

Acquisition, device identity and the quality assessment are captured together at the point of recording, so an uninterpretable trace is caught where it is cheapest to fix — at the machine.

Role in the system: ECG TechnicianNo clinical authority — separation of duties

What changes

What this means for ecg technicians, specifically.

Each item below corresponds to something in the build: a screen, a permission or a guard. Nothing here is a study result — this build has no clinical evidence base, and inventing one would be the worst possible way to sell it.

Quality decided at ingestion

Every recording is assessed against accepted limits — lead integrity, baseline stability, interference, saturation, duration — and graded before any interpretation is attempted.

The acquisition parameters travel with the study

Sampling rate, lead set, calibration and duration are stored with the samples, validated against configured limits, and refused rather than accepted when they are outside them.

Every study names its device

Recordings carry the device that produced them, so a pattern of poor traces can be traced to a machine rather than to a person.

You see what the reader sees

The waveform viewer draws the stored samples on calibrated paper, so the trace you are judging is the trace that will be interpreted.

What it removes

The arrangement this replaces.

Stated as problems rather than statistics, because they are the ones a reader recognises from their own week.

A repeat is discovered too late

The recording is transmitted, the patient leaves, and an hour later somebody reads it and asks for a repeat.

Acquisition settings get lost

Sampling rate, lead set and duration are what make a measurement valid. When they are not stored with the recording, the interpretation has no basis anyone can audit.

Devices are trusted implicitly

A machine that drifts is not obvious from a single trace, and a study that names no device cannot be investigated later.

Permissions held

What this role can do, read from the access-control table.

Generated from the same permission table the API enforces, so it describes access that exists rather than access that was described. If a permission is added to this role it appears here; if one is removed, it disappears.

ECG Technician

6 permissions held
See patient demographics
Name, hospital number and encounter details, for patients in this facility.
See the study list and its metadata
Which recordings exist, when they were taken, and what state each is in.
View the waveform
The stored samples themselves, rendered on calibrated ECG paper.
Acquire and transmit a recording
Create a study from a device or an upload.
Manage ECG devices
Register and configure the machines that produce recordings.
See critical alerts
The worklist of findings that need a person, and its acknowledgement state.

Screens this role opens

ECG Queue/queueWaveform viewer/ecgDevices & integration/system

Navigation is filtered by permission rather than by role name, so a screen this role cannot open is rendered as a label explaining which permission it would need — rather than as a link that fails when it is clicked.

Separation of duties

What this role cannot do, and why that protects them.

Every access model is also a statement about accountability. These limits are the ones that make the audit trail worth having — and the ones that stop a signature meaning something it does not.
  • You cannot interpret a recording. The person who acquires an ECG is deliberately not the person who reads it.

  • You cannot alter a stored study after ingestion. A correction is a new study linked to the original, not an edit.

Read together with the full pipeline

The limits above are enforced by the same rules that govern the pipeline described in how it works, and the regulatory position — including what this build does not establish — is stated on safety & limits.

Regulatory position

What this is not

This is a demonstration-grade clinical system. It is not a medical device, it holds no regulatory clearance anywhere, and it has not been validated against a clinical dataset.

It does not diagnose and it does not replace clinical assessment. Every interpretation is decision support for a qualified professional, who reviews, overrides and signs it — and the record shows which professional.

No sensitivity, specificity, agreement or accuracy figure appears on this site, because none has been established for this build. Any such figure would be invented. Read the full position.

See it on your own recordings.

Send a request, and a person reviews it. If it is approved you get a link that creates your own organisation, with the first 2 analysed studies included and no card details — and you are its administrator from the moment you set your password.