Date (calendar page with 31)
The standard’s wording, as the sources below reproduce it:
“To identify the date that information was entered or a medical procedure took place.”
ISO 15223-1:2021, 5.7.6 · IEC 60417-5662
What it means for you
On an implant card, the date next to it is usually the date of the operation. Keep it: it dates the implant for later scans and checks.
Whether a device is right for you is a question for your pharmacist, nurse or doctor.
- What it looks like
- A calendar page with a turned corner showing the number 31, next to a date.
- Where you see it
- Implant cards given to patients after an implant (EU MDR Article 18), and some patient-specific labels.
- Other names
- implant date; calendar symbol; date of procedure
What it does not tell you
It is not a use-by date (hourglass) or a date of manufacture (outline factory).
Often confused with
Indicates the date after which the medical device is not to be used.
More symbols in “A card, screen or calendar”
Sources
ISO 15223-1 is a paid standard, so the wording above is quoted as 3 publishers’ public documents reproduce it. Each was fetched and read on the date shown:
- Boston Scientific: Symbols Glossary — ISO 15223-1 5.7.6 “Date — To identify the date that information was entered or a medical procedure took place.” Checked 2026-09-28.
- NE Scientific: Master Symbol Glossary (CTF-100011 Rev 01) — Shows the calendar page for reference no. 5.7.6 (IEC 60417-5662). Checked 2026-09-28.
- Cook Medical: Glossary of standard symbols — ISO 15223-1 5.7.6 “Date — To identify the date that information was entered or a medical procedure took place.” Checked 2026-09-28.
Plain-language parts are in our own words; quotations are the sources’ wording.