# K022420: Micrus Stretch-Resistant Microcoil System, MSR01

- Pathway: 510(k) (Traditional)
- Applicant: Micrus Corp.
- Decided: Oct 22, 2002 after 90 days
- Product code: HCG (Device, Neurovascular Embolization)
- Device class: 2
- Regulation: 21 CFR 882.5950
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 5 generations back to K951256 (1995). 24 ancestors in all.
103 later devices descend from it; 4 cite it directly.
1 of 128 devices in its family (counting itself) has a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K993415: GDC-10 Stretch Resistant Guglielmi Detachable Coil, GDC-10 2-Diameter Stretch Resistant Guglielmi Detachable Coil, GDC-1, Boston Scientific, Target (2000) Summary page 1.

## Cited in the summary but kept off the family tree
- K020056: Duet Suture Anchor, Bionx Implants, Ltd. (2002). Not matched in our reading of the summary (scans can blur digits), so it is kept off the family tree

## Most influential descendants
- K031578: Micrus Microcoil Systems, Models Hel, SPH, STR, FSR and HSR (2003), 91 descendants of its own
- K032590: Microplex Coil System (MCS), Hydrocoil Embolic System (Hes) (2003), 68 descendants of its own
- K033836: Hydrocoil Embolic System (Hes) (2003), 67 descendants of its own
- K041551: Modification to: Hydrocoil Embolic System (Hes) (2004), 66 descendants of its own
- K050954: Microplex Coil System (MCS) and Hydrocoil Embolic System (Hes) (2005), 65 descendants of its own

## Indications for use
The Micrus Stretch-Resistant Microcoil System is intended for endovascular embolization of intracranial aneurysms that - because of their morphology, their location or the patient’s general medical condition - are considered by the treating neurosurgical team to be a) very high risk for management by traditional operative techniques or b) inoperable.

Source page: https://510kreport.com/device/K022420
Methodology: https://510kreport.com/methodology