This guideline provides a systematic framework for selecting shelf life test attributes for intravascular device manufacturers. The standard adopts the dual question decision model (Question 1 & 2) as the evaluation basis:
| Evaluation dimensions | Key considerations | Typical examples |
|---|---|---|
| Question 1: Do attributes change over time? | Material properties, processing technology, sterilization method, packaging system | Nylon catheter breaking strength, balloon rated burst pressure |
| Question 2: Do changes affect safety performance? | Clinical risk analysis, complaint history, scientific basis | Stent release force, balloon compliance |
The main updates of the 2024 edition are:
Shelf life study of a drug-eluting stent:
| Device type | Required attributes | Exempt attributes |
|---|---|---|
| Metal stent | Radial support force, fatigue performance | MR compatibility, dimensional stability |
| Balloon catheter | Burst pressure, pushability | Appearance of non-contact parts |
Special note: Combination products (drug-device combination) require additional evaluation of the interaction between drug stability and carrier materials.

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Update:
Mon, 02 Mar 2026 07:20:36 +0000