# K920856: Ventrex Coated Tube High Sensit. TSH Radioimmunoas

- Pathway: 510(k) (Traditional)
- Applicant: Hycor Biomedical, Inc.
- Decided: Mar 26, 1992 after 37 days
- Product code: JLW (Radioimmunoassay, Thyroid-Stimulating Hormone)
- Device class: 2
- Regulation: 21 CFR 862.1690
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
1 later device descends from it; 1 cites it directly.
0 of 2 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA lists a 510(k) statement for it but has not posted the file, so its predicates are not known.

## Most influential descendants
- K041014: TSH-CTK-3 Irma (2004), 0 descendants of its own

Source page: https://510kreport.com/device/K920856
Methodology: https://510kreport.com/methodology