# K951727: Z-Watch System

- Pathway: 510(k) (Traditional)
- Applicant: Prizm Medical, Inc.
- Decided: Nov 21, 1995 after 222 days
- Product code: IPF (Stimulator, Muscle, Powered)
- Device class: 2
- Regulation: 21 CFR 890.5850
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
4 later devices descend from it; 1 cites it directly.
0 of 5 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
- K032239: Thera-Cream, Model TCT004 (2004), 3 descendants of its own
- K161654: NuFACE Gel Primer (2016), 2 descendants of its own
- K243749: Jmoon Conductive Gel (2025), 0 descendants of its own
- K220735: Avologi Gel Primer (Model: Av25) (2023), 0 descendants of its own

Source page: https://510kreport.com/device/K951727
Methodology: https://510kreport.com/methodology