Hobbs Microbiology Brush 4310Recalls & reported problems

Summary

The FDA's MAUDE database contains 2 adverse event reports that list this exact device (DI M84943100), received between Aug 24, 2023 and Sep 26, 2024 — classified as 1 injury, 1 malfunction.

The most frequently reported specific device problem is “Detachment of Device or Device Component” (1 report).

1 other recall cover devices cleared under the same FDA submission (K893729); they may or may not involve this specific model.

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. What reports can and can't tell you · How this data works · Data updated Oct 18, 2026.

Most reported problems

Recent adverse event reports

The 2 most recent of 2 reports, in the reporter's own words as published by the FDA.

• InjurySep 26, 2024Material Separation; Material Separation

  IT WAS REPORTED THAT THE DISTAL ATRAUMATIC BALL TIP OF THE MICROBIOLOGY BRUSH FELL OFF WHICH THE DEVICE WAS IN THE PATIENT'S RIGHT UPPER LOBE OF THE LUNG. ACCORDING TO THE PHYSICIAN, THEY NOTICED THE TIP HAD FALLEN OFF WHILE INSIDE THE LUNG AND WHEN THE DEVICE WAS RETRACTED FROM THE SCOPE, THERE WAS NO TIP ON THE DEVICE. PHYSICIAN CONFIRMED THE TIP WAS NOT LODGED IN THE SCOPE AND DID NOT FEEL IT WOULD BE POSSIBLE TO SUCTION THE SEPARATED COMPONENT OUT OF THE LUNG. PHYSICIAN PLANNED TO SEND THE PATIENT FOR SCANS TO IDENTIFY THE LOCATION OF THE TIP IN THE LUNG.

  Patient problems: Foreign Body In Patient

  MAUDE report 20309145 ↗
• MalfunctionAug 24, 2023Detachment of Device or Device Component; Detachment of Device or Device Component

  ACCORDING TO THE INITIAL REPORTER, A MICROBIOLOGY BRUSH WAS USED ON A PATIENT FOR BRONCHOSCOPY. WHILE TAKING THE BRUSH SAMPLE, THE BLUE PLASTIC TEAR DROP TIP ON THE DISTAL END OF THE BRUSH CAME OFF AND FELL INTO THE PATIENT'S BRONCHUS. THE PLASTIC TIP WAS REMOVED WITH SUCTION, AND NO MAJOR DAMAGE WAS VISIBLE.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 17617995 ↗

Recalls under the same FDA submission

These recalls involve devices cleared under K893729. One submission often covers many models, so check the product and lot details in each record.

• Z-0711-2022 · Dec 28, 2021 · Open, Classified
  Bronchial Microbiology Brush, Catalog Number 4310 and 4320. Microbial sampling is performed by compressing a spring as the base of brush wire to expose the brush, scraping the desi