O3 4384Recalls & reported problems
Masimo Corporation · O3 Sensor Infant/Neonatal Adhesive Sensor · Class 2
- Adverse event reports
- 15
- Deaths reported
- 0
- Injuries reported
- 0
- Recalls naming it
- 0
Summary
The FDA's MAUDE database contains 15 adverse event reports that list this exact device (DI 10843997013496), received between Jun 8, 2021 and Mar 16, 2023 — classified as 15 malfunctions.
The most frequently reported specific device problem is “Patient-Device Incompatibility” (7 reports).
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
- Patient-Device Incompatibility7
- Adverse Event Without Identified Device or Use Problem5
- Patient Device Interaction Problem2
- High Readings1
Patient problems
- Pressure Sore/Ulcer8
- Unspecified Tissue Injury3
- Skin Tears2
- Localized Skin Lesion1
- No Clinical Signs, Symptoms or Conditions1
- Skin Discoloration1
- Superficial (First Degree) Burn1
Recent adverse event reports
The 15 most recent of 15 reports, in the reporter's own words as published by the FDA.
MalfunctionMar 16, 2023Patient-Device Incompatibility; Patient-Device Incompatibility
THE CUSTOMER REPORTED THE "NEAR-INFRARED SPECTROSCOPY (NIRS) PROBE ON RIGHT LOWER BACK RESULTED IN TWO SUPERFICIAL SKIN TEARS." THERE WERE NO ADDITIONAL MEDICAL INTERVENTIONS REPORTED.
Patient problems: Pressure Sore/Ulcer
MAUDE report 16560108 ↗MalfunctionMar 16, 2023Patient-Device Incompatibility; Patient-Device Incompatibility
THE CUSTOMER REPORTED THE "NEAR-INFRARED SPECTROSCOPY (NIRS) PROBE ON LOWER BACK RESULTED IN A MEDICAL ADHESIVE RELATED SKIN INJURY (MARSI) WITH PARTIAL THICKNESS." THERE WERE NO ADDITIONAL MEDICAL INTERVENTIONS REPORTED.
Patient problems: Pressure Sore/Ulcer
MAUDE report 16560053 ↗MalfunctionMar 16, 2023Patient-Device Incompatibility; Patient-Device Incompatibility
THE CUSTOMER REPORTED THE "NEAR-INFRARED SPECTROSCOPY (NIRS) PROBE ON MID BACK (SPINE) RESULTED IN A MEDICAL ADHESIVE RELATED SKIN INJURY (MARSI) WITH PARTIAL THICKNESS." THERE WERE NO ADDITIONAL MEDICAL INTERVENTIONS REPORTED.
Patient problems: Pressure Sore/Ulcer
MAUDE report 16554759 ↗MalfunctionMar 16, 2023Patient-Device Incompatibility; Patient-Device Incompatibility
THE CUSTOMER REPORTED THE "NEAR-INFRARED SPECTROSCOPY (NIRS) PROBE ON LEFT LOWER BACK RESULTED IN A MEDICAL ADHESIVE RELATED SKIN INJURY (MARSI) WITH PARTIAL THICKNESS." THERE WERE NO ADDITIONAL MEDICAL INTERVENTIONS REPORTED.
Patient problems: Pressure Sore/Ulcer
MAUDE report 16554744 ↗MalfunctionMar 14, 2023Patient-Device Incompatibility; Patient-Device Incompatibility
THE CUSTOMER REPORTED THE "NIRS PROBE ON RIGHT FOREHEAD RESULTED IN A LESION WITH PURPLE DISCOLORATION." NO ADDITIONAL MEDICAL INTERVENTION WAS REPORTED.
Patient problems: Pressure Sore/Ulcer
MAUDE report 16539774 ↗MalfunctionMar 10, 2023Patient-Device Incompatibility; Patient-Device Incompatibility
THE CUSTOMER REPORTED "NEAR-INFRARED SPECTROSCOPY (NIRS) PROBE ON THE RIGHT FLANK RESULTED IN A STAGE 1 PRESSURE ULCER/INJURY." NO ADDITIONAL MEDICAL INTERVENTION WAS REPORTED.
Patient problems: Pressure Sore/Ulcer
MAUDE report 16526983 ↗MalfunctionMar 4, 2023Patient-Device Incompatibility; Patient-Device Incompatibility
THE CUSTOMER REPORTED THE "NIRS PROBES PLACED ON PATIENTS HAVE RESULTED IN DIFFERENT INJURIES, INCLUDING SKIN TEARS, BURNS, AND PRESSURE INJURIES." THERE WERE NO ADDITIONAL MEDICAL INTERVENTIONS REPORTED.
Patient problems: Pressure Sore/Ulcer
MAUDE report 16483278 ↗MalfunctionMar 1, 2023Patient Device Interaction Problem
A US DISTRIBUTOR RETURNED A PATIENT'S ELECTRODE BELT AND REPORTED THAT THE PATIENT WAS EXPERIENCING "CHECK THERAPY PAD" MESSAGES.
Patient problems: Localized Skin Lesion; Skin Discoloration
MAUDE report 16459243 ↗MalfunctionMar 1, 2023Adverse Event Without Identified Device or Use Problem
NEAR-INFRARED SPECTROSCOPY (NIRS) PROBE ON LEFT LOWER BACK RESULTED IN A MEDICAL ADHESIVE RELATED SKIN INJURY (MARSI) WITH PARTIAL THICKNESS.
Patient problems: Unspecified Tissue Injury
MAUDE report 16459204 ↗MalfunctionMar 1, 2023Adverse Event Without Identified Device or Use Problem
NEAR-INFRARED SPECTROSCOPY (NIRS) PROBE ON MID BACK (SPINE) RESULTED IN A MEDICAL ADHESIVE RELATED SKIN INJURY (MARSI) WITH PARTIAL THICKNESS.
Patient problems: Unspecified Tissue Injury
MAUDE report 16459202 ↗MalfunctionMar 1, 2023Adverse Event Without Identified Device or Use Problem
NEAR-INFRARED SPECTROSCOPY (NIRS) PROBE ON RIGHT LOWER BACK RESULTED IN TWO SUPERFICIAL SKIN TEARS.
Patient problems: Skin Tears
MAUDE report 16459176 ↗MalfunctionMar 1, 2023Adverse Event Without Identified Device or Use Problem
NEAR-INFRARED SPECTROSCOPY (NIRS) PROBE ON LOWER BACK RESULTED IN A MEDICAL ADHESIVE RELATED SKIN INJURY (MARSI) WITH PARTIAL THICKNESS.
Patient problems: Unspecified Tissue Injury
MAUDE report 16459175 ↗MalfunctionMar 1, 2023Patient Device Interaction Problem
NEAR-INFRARED SPECTROSCOPY (NIRS) PROBE ON THE RIGHT FLANK RESULTED IN A STAGE 1 PRESSURE ULCER/INJURY.
Patient problems: Pressure Sore/Ulcer
MAUDE report 16459141 ↗MalfunctionFeb 7, 2023Adverse Event Without Identified Device or Use Problem
NEAR-INFRARED SPECTROSCOPY (NIRS) PROBE PLACED ON RIGHT FLANK RESULTED IN STAGE 2 PRESSURE INJURY.
Patient problems: Skin Tears; Superficial (First Degree) Burn
MAUDE report 16311002 ↗MalfunctionJun 8, 2021High Readings; High Readings
THE CUSTOMER REPORTED THE SENSOR LIFTED OFF THE PATIENT DURING USE CAUSING THE MEASURED VALUES TO INCREASE. NO PATIENT IMPACT OR CONSEQUENCES WERE REPORTED.
Patient problems: No Clinical Signs, Symptoms or Conditions
MAUDE report 11959965 ↗
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Sources: FDA GUDID, MAUDE and Medical Device Recalls via openFDA. openFDA data is not validated for clinical or regulatory use.