FDA product code · Cardiovascular · Class 2

DSB: Plethysmograph, Impedance

DSB is FDA's product code for "Plethysmograph, Impedance": a Class 2 device classified under 21 CFR 870.2770, reviewed by the Cardiovascular panel.

510(k) review time for DSB

Across 12 510(k) clearances under DSB decided from 2018-01-01 to 2026-10-06, the median was 242 days from FDA receipt to decision. Half took between 194 and 303 days, and 80% were decided within 313 days. These are past clearances, not a forecast for a new submission.

Days from FDA receipt to 510(k) decision, DSB, decisions 2018-01-01 to 2026-10-06 (n = 12)
Fastest96
25th percentile194
Median242
75th percentile303
80th percentile313
90th percentile366
Slowest431

Source: openFDA 510(k) records, snapshot of 2026-10-06 (openFDA data as of 2026-09-28). Compare 510(k) review times across all device types, see every code side by side in the Clearance Timeline Estimator, or browse the clearances themselves in PredicateScope.

DSB in the public FDA record

Records naming DSB, from openFDA (snapshot of 2026-09-15)
510(k) clearances, all years115
Establishment listings148

Counts of records, not of devices or events. Adverse event reports for DSB are in MAUDEScope, as counts with the query shown: MAUDE has no denominator, so a report count is not a rate and does not show that a device caused an event.

FDA-recognized standards that cite DSB

No FDA recognized consensus standard cites DSB by product code. Horizontal standards such as biocompatibility, sterilization and software standards can still apply.

Source: FDA Recognized Consensus Standards, snapshot of 2026-09-01. Search them all in the Consensus Standards Lookup.

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