# K050294: Cook Ireland Sonnet Polypectomy Snare

- Pathway: 510(k) (Traditional)
- Applicant: Cook Ireland, Ltd.
- Decided: Mar 31, 2005 after 52 days
- Product code: FDI (Snare, Flexible)
- Device class: 2
- Regulation: 21 CFR 876.4300
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 1 generation back to K851958 (1985). 2 ancestors in all.
9 later devices descend from it; 2 cite 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)
- K851958: Rotatable Polypectomy Snare Pos-1, Wilson-Cook Medical, Inc. (1985) Summary page 2.
- K011667: Horizons International Polypectomy Snares, Horizons Intl. Corp. (2001) Summary page 2.

## Most influential descendants
- K070315: Lina Loop, Models: EL-160-4, EL-160-8, EL-200-4, EL-200-8 (2007), 7 descendants of its own
- K111059: Gyrus Acmil Bipolarlaproscopic Loop (PKS Bill) (2011), 3 descendants of its own
- K122605: PKS Bill (2012), 1 descendant of its own
- K254303: Karl Storz Supraloop (2026), 0 descendants of its own
- K142525: PK Lap Loop (2014), 0 descendants of its own

## Indications for use
The Sonnet TM Polypectomy Snare is a monopolar electrosurgical device used with an electrical unit for endoscopic polypectomy.

Source page: https://510kreport.com/device/K050294
Methodology: https://510kreport.com/methodology