WALLACH 900509-4Recalls & reported problems
Coopersurgical, Inc. · WA4000 20# N2O CONNECTOR · Class 2
- Adverse event reports
- 1
- Deaths reported
- 0
- Injuries reported
- 0
- Recalls naming it
- 0
Summary
The FDA's MAUDE database contains 1 adverse event report that list this exact device (DI 00888937014020), received between May 28, 2020 and May 28, 2020 — classified as 1 malfunction.
The most frequently reported specific device problem is “Therapeutic or Diagnostic Output Failure” (1 report).
Reports come from manufacturers, hospitals and patients and are not verified by the FDA. A report does not prove the device caused the event, and counts can't be used to compare devices or estimate failure rates. How this data works · Data updated Oct 13, 2026.
Most reported problems
Device problems
- Therapeutic or Diagnostic Output Failure1
Patient problems
- No Known Impact Or Consequence To Patient1
Recent adverse event reports
The 1 most recent of 1 reports, in the reporter's own words as published by the FDA.
MalfunctionMay 28, 2020Therapeutic or Diagnostic Output Failure
CUSTOMER STATED: "DEFROST BUTTON IS NOT DEFROSTING". 1216677-2020-00126-1 900509-4 WA4000 20 N20 CONN (B)(4)
Patient problems: No Known Impact Or Consequence To Patient
MAUDE report 10095898 ↗
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Sources: FDA GUDID, MAUDE and Medical Device Recalls via openFDA. openFDA data is not validated for clinical or regulatory use.