# K896156: Compass (TM) Stereotactic Retractor System

- Pathway: 510(k) (Traditional)
- Applicant: Stereotactic Medical Systems, Inc.
- Decided: Dec 6, 1989 after 43 days
- Product code: GZT (Retractor, Self-Retaining, For Neurosurgery)
- Device class: 2
- Regulation: 21 CFR 882.4800
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
11 later devices descend from it; 1 cites it directly.
1 of 12 devices in its family (counting itself) has a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA has not posted a summary or statement for it, so its predicates are not known.

## Most influential descendants
- K060973: Vycor Surgical Access Systems (2006), 10 descendants of its own
- K120691: Brain Port (2012), 8 descendants of its own
- K182211: Aurora Surgiscope System (2019), 4 descendants of its own
- K191861: Aurora Surgiscope System (2019), 3 descendants of its own
- K201840: Aurora Surgiscope System (Surgiscope), Aurora Surgiscope System (Image Control Box) (2020), 2 descendants of its own

Source page: https://510kreport.com/device/K896156
Methodology: https://510kreport.com/methodology