Cleared Traditional

K932504 - RI-FORMER

K932504 is an FDA 510(k) clearance for RI-FORMER, manufactured by Rudolf Riester GmbH & Co. KG. The device is a Class 2 Ophthalmic device with product code HLJ cleared through the Traditional 510(k) pathway after a 147-day FDA review.

K932504 · Rudolf Riester GmbH & Co. KG · Ophthalmic device
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Oct 1993
Decision
147d
Days
Class 2
Risk

K932504 is an FDA 510(k) clearance for the RI-FORMER. Classified as Ophthalmoscope, Battery-powered (product code HLJ), Class II - Special Controls.

Submitted by Rudolf Riester GmbH & Co. KG (D-72417 Jungingen, DE). The FDA issued a Cleared decision on October 15, 1993 after a review of 147 days - within the typical 510(k) review window.

This device falls under the Ophthalmic FDA review panel, regulated under 21 CFR 886.1570 - the FDA ophthalmic device framework. The Traditional 510(k) pathway establishes clearance through substantial equivalence to a legally marketed predicate device, without requiring clinical trial data.

Device pattern: Standard predicate-based submission. Standard predicate reliance. This clearance follows a standard predicate-based equivalence path within the Ophthalmic review framework, consistent with the majority of Class II 510(k) submissions.

View all Rudolf Riester GmbH & Co. KG devices

FDA 510(k) Submission Details - K932504

510(k) Number K932504 FDA.gov
FDA Decision Cleared Substantially Equivalent - Special 510(k) (SESK)
Date Received May 21, 1993
Decision Date October 15, 1993
Days to Decision 147 days
Submission Type Traditional
Review Panel Ophthalmic (OP)
Summary Statement
Third-party Review No - reviewed directly by FDA
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
37d slower than avg
Panel avg: 110d · This submission: 147d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

HLJ Device Classification - Class 2, Special Controls

Product Code HLJ Ophthalmoscope, Battery-powered
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 886.1570
What this classification means

Class II devices require demonstration of substantial equivalence to a legally marketed predicate device. This pathway does not require clinical trials - it relies on engineering equivalence and performance data. Most Ophthalmic devices follow this clearance model.

Regulatory Peers - HLJ Ophthalmoscope, Battery-powered

All 23
Devices cleared under the same product code (HLJ) and FDA review panel - the closest regulatory comparables to K932504.
R & D BATTERIES
K936104 · R & D Batteries, Inc. · Feb 1994
DE LUXE
K925755 · Rudolf Riester GmbH & Co. KG · Dec 1993
UNI II
K925756 · Rudolf Riester GmbH & Co. KG · Oct 1993
OPHTHALMOSCOPE
K925757 · Rudolf Riester GmbH & Co. KG · Aug 1993
MIS
K923543 · Ceram Optec, Inc. · Mar 1993
INDIRECT OPHTHALMOSCOPE
K853891 · Carl Zeiss, Inc. · Oct 1985