# K923931: Medtronic Model 3487A Pisces-Quad Lead

- Pathway: 510(k) (Traditional)
- Applicant: Medtronic Vascular
- Decided: Mar 18, 1993 after 225 days
- Product code: GZB (Stimulator, Spinal-Cord, Implanted (Pain Relief))
- Device class: 2
- Regulation: 21 CFR 882.5880
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
3 later devices descend from it; 3 cite it directly.
0 of 4 devices in its family (counting itself) have 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
- K033016: Pisces Z Quad Lead Model, 3890, Pisces Z Quad Compact Lead Model, 3891, Pisces Z Quad Plus Lead Model, 3892 (2003), 1 descendant of its own
- K040568: Polyether Urethane Material Change in Neurostimulation Leads (2004), 0 descendants of its own
- K964172: Medtronic Model 3991A, 3992A, 3993A, 3994A Leads or Transverse Tripolar Leads or TTL (1997), 0 descendants of its own

Source page: https://510kreport.com/device/K923931
Methodology: https://510kreport.com/methodology