# K891125: Constrictor Ring for Penile Erection

- Pathway: 510(k) (Traditional)
- Applicant: Performance, Inc.
- Decided: Apr 27, 1989 after 55 days
- Product code: LKY (Device, External Penile Rigidity)
- Device class: 2
- Regulation: 21 CFR 876.5020
- 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; 4 cite 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
- K981343: Erco-Ribbon (1998), 1 descendant of its own
- K990008: Erco-Ribbon -C (1999), 0 descendants of its own
- K974082: The Performance Plus Confidence Rings, the Performance Plus Erection Inducer Device (1998), 0 descendants of its own
- K972353: Erco-Ribbon (1997), 0 descendants of its own

Source page: https://510kreport.com/device/K891125
Methodology: https://510kreport.com/methodology