K934804 is an FDA 510(k) clearance for the PURITAN-BENNETT COMPANION 320 I/E. Classified as Ventilator, Non-continuous (respirator) (product code BZD), Class II - Special Controls.
Submitted by Puritan Bennett Corp. (Lenexa, US). The FDA issued a Cleared decision on February 27, 1995 after a review of 508 days - an unusually long review period, suggesting complex equivalence evaluation.
This device falls under the Anesthesiology FDA review panel, regulated under 21 CFR 868.5905 - the FDA anesthesiology and respiratory 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: High-complexity regulatory submission. Elevated predicate reliance profile. The extended review timeline suggests the FDA required additional documentation before confirming substantial equivalence - a pattern common in complex or first-of-kind Anesthesiology submissions.
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