# K991959: Psi Titanium Aneurysm Clip

- Pathway: 510(k) (Traditional)
- Applicant: V. Mueller Neuro/Spine
- Decided: Jan 6, 2000 after 210 days
- Product code: HCH (Clip, Aneurysm)
- Device class: 2
- Regulation: 21 CFR 882.5200
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 3 generations back to K772200 (1977). 10 ancestors in all.
1 later device descends from it; 1 cites it directly.
0 of 12 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K983758: Yasargil Titanium Aneurysm Clips, Aesculap, Inc. (1998) Summary page 1.
- K972750: Taka Aneurysm Clip, V. Mueller Neuro/Spine (1998) Summary page 1.

## Most influential descendants
- K031468: Temporary Titanium Aneurysm Clip (2003), 0 descendants of its own

## Indications for use
Permanent placement in the brain for occlusion of cerebral aneurysms. They are only to be applied with PSI clip appliers with titanium alloy jaw inserts

Source page: https://510kreport.com/device/K991959
Methodology: https://510kreport.com/methodology