Vector-12 bedside telemetry · rev 4
A monitor should be read from across the room.
Cardiavist builds bedside displays for people who glance, not people who study. Every pixel of Vector-12 is ranked by how fast it answers one question: is this patient the same as they were a minute ago?
The trace runs continuously at 25 mm/s against a 1 mm graticule. Numerals live at the right edge, always in the same order, always the same size — so a clinician crossing the ward learns the shape of a normal bay and notices the abnormal one before reading a single digit.
Anatomy of one complex
Four deflections, four decisions.
Our interface language borrows its hierarchy directly from the waveform. Each element on screen is sized in proportion to how urgently it must be seen — the R wave is the headline, everything else is annotation.
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P
Atrial notice
Low-amplitude, always present. In the UI this is the status bar: bed, mode, time. You should never have to look for it, and it should never shout.
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QRS
The headline
The single tallest thing in view. Heart rate gets the largest numeral on the panel — 76 px of tabular mono, glowing softly in step with the detected R peak.
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ST
The quiet segment
Deliberate emptiness. Vector-12 keeps 24 px of dead space above and below every trace so deviation reads as shape, not as clutter.
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T
Recovery
Secondary information — trends, last-hour minima, cuff timings — sits below the fold of each numeral in 11 px monospace at 38 % opacity.
Fleet status · Meridian General
Eleven bays, one visual grammar.
Every Vector-12 in a ward renders identical geometry regardless of acuity level. A nurse moving from step-down to ICU carries the same scanning habit with them.
| Bay | Unit | Channels | Sweep | State |
|---|---|---|---|---|
| 04-B | Cardiac step-down | II · V1 · RESP · PLETH | 25 mm/s | Streaming |
| 04-C | Cardiac step-down | II · PLETH | 25 mm/s | Streaming |
| 07-A | Post-anaesthetic | II · V5 · RESP · CO₂ | 50 mm/s | Lead off |
| 07-B | Post-anaesthetic | II · PLETH · ABP | 25 mm/s | Streaming |
| 11-D | Coronary care | II · III · aVF · PLETH | 25 mm/s | Standby |
| 12-A | Coronary care | II · V1 · ABP | 25 mm/s | Streaming |
Field notes
Designed against the night shift.
We tuned the palette at 03:00 in a darkened four-bed bay. Phosphor green survives dark adaptation; amber carries urgency without triggering the red-alarm reflex; everything else falls away into the graticule.
“The old panel made me walk to the bedside to know if anything had changed. This one I can read from the door, and that's four minutes of my shift back per patient.”