510(k) Report

FDA applicant

Ryazan State Instruments

Long Beach, NY1 decision2006–20060 recalls

FDA records 1 decision for Ryazan State Instruments (Long Beach, NY) in 2006: 1 510(k) clearance. All are in product code HKX (Tonometer, Ac-Powered). Its devices cite 2 predicates, 0 of them its own earlier devices. No recall is linked to its devices.

Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) refreshed weekly, last Nov 3, 2026

FIG. A — Illustration, ophthalmic panel, where it files most

How often FDA has decided Ryazan State Instruments’s devices, and how often a recall has named them.

FDA decisions per year

No FDA decision for Ryazan State Instruments since 2007.

Recalls per year

No recall linked to its devices since 2007.

FIG. 1 — Ryazan State Instruments by year, 2007–2026Sources: FDA decision databases, recall and enforcement reports · Data through Oct 25, 2026

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Which product codes does it file in?

  • HKXTonometer, Ac-Powered1decision

Whose devices does it build on?

Its devices cite 2 predicates; 0 are its own earlier devices. The firms it cites most:

Who builds on its devices?

Later devices cite its devices 1 time; 0 of those are its own. The firms that cite it most:

Which of its devices are cited most?

Its devices that later submissions most often claim equivalence to.

  • K060780Tonometer DiatonRyazan State Instruments · 20061cites it

What has FDA decided for it lately?

  • K060780Tonometer DiatonRyazan State Instruments · 2006

The one decision as Ryazan State Instruments →